Slab Design Example

Below you’ll see another example of a travertine floor. Calculate Aspect Ratio Aspect Ratio > 2 = Longer span/Shorter span 2. Design Step 2. The method is demonstrated in SHEAR EXAMPLE 2. Only the design of Slab Bridge will be used for illustration. The requirements of AS 3660. Slab serif fonts are important, because they carry a lot of weight. The design shear force can be reduced to account for the loads applied inside the outer perimeter. A waffle slab or two-way joist slab is a concrete slab made of reinforced concrete with concrete ribs running in two directions on its underside. In addition, you need a base course of 4″ of clean, graded sand, gravel, crushed stone or slag under 2″ when the slab is below grade unless the existing soil is exempted by the soils report. What purpose concealed beam used in slab design? what pupose concealed beam use in slab. Note that design moment for slabs is calculated on a typical 1-ft wide section of the slab. Its made of concrete. Architectural freedom, Flexibility in Design and Use, Fast and Inexpensive, Savings and Environmental Benefits. 0 INTRODUCTION A slab is a thin planar member which transmits transverse loads by bending action to its supports. To design multiple slab panels, either: From the Design ribbon run Design Slabs in order to design or check all the panels in the model - by default newly created panels will all be in "auto-design" mode - so reinforcement is selected automatically. Slabs can be overwhelming and difficult to read if too many letters are used because of the weight and size. 00 m, amsl HWM = 1643. Most beams, for example, use about 1% rebar for carrying the tension forces in bending. 0 Preliminary choice of parameters 4 3. The beams are typically from 0. On the opposite end of the spectrum, doors composed of MDF (particle board) and covered with rigid thermofoil (often white) are some of the cheapest you can find. 05 for every 1,000 psi above 4,000 psi. That is, the load factor at which the ULS moment equals the moment capacity. A waffle slab is flat on top, while joists create a grid like surface on the bottom. of clear roadway. View example in PDF format. Yorkten Slab ensures that you have the necessary tools for any challenge. Inspection Testing: 1. 5 - Compute Dead Load Effects. Emily Henderson carefully laid this floor so that every other square would have an inverted colorway; it’s a simple trick that really makes the room pop. Author: Andrew bartolini. Punching of flat slabs – design for shear at th e column heads 12. Beam and slab arrangement can be the best example for one way and two way slabs. Two way slab design formula. This design example presents a case with a cofferdam wall system, supporting a 20ft excavation. ACI 318-11 Crack Width Calculations For Slab. (two way slabs) are continuous with verandah (one way slab). Two-Way Slab Design Static Equilibrium of Two-Way Slabs Total Moment in both beams Full load was transferred east-west by the planks and then was transferred north-south by the beams; The same is true for a two-way slab or any other floor system where: 2 2 1 kN. 14: Bending moment coefficients for two-way restrained slab (Ref. Design a thickened slab to support the columns and. 0m and to be used as balcony (LL = 300 kg/m2). 89 k-ft φ Mn = 3. Structure over Podium Slab. examples of slab design by the yield line theory Download examples of slab design by the yield line theory or read online books in PDF, EPUB, Tuebl, and Mobi Format. A slab must be defined that will then be loaded and analyzed. The slab is supported on beams of size 225 x 500 mm spaced at 4. A design example using FEA is given in one appendix. This course presents information on the design of slabs-on-ground, primarily industrial floors. A residential post-tensioned concrete slab will typically be 8 inches thick and use 3000 psi concrete. This PDF file contains a chapter named "Design of Flat Slabs" of 23 pages with various aspects of flat slabs including four example of flat slab design. for example M20,M25 mixtures are used and steel 1% to 2. 3 Limit States Design Method 18. The gravity load framing system consists of wood-frame bearing walls for the upper stories and concrete bearing walls for the lower story. In general, it is seen that in solid slab a portion of concrete below the neutral axis remains ineffective. This video shows you how to calculate the amount of concrete required to pour a Concrete Slab on Ground with Splayed edge beam and a Rebated edge. f ck = 30 Mpa, f yk = 500 Mpa. 27 Design Example 1 (Typical House with 2 Rooms and Verandah) - Two-way Restrained Slab - Table 3. The design procedure separately incl udes determining thickness of slab under wall load. In two way slabs, load will be carried in both the directions. 1 (ACI 318-11 13. one way bending: one-way slab two way bending: two-way slab. Resistance factors of 0. Punching, unbuttoning and perforation 11. Figure 1: Slab section properties. Conventional reinforced flat slabs and. This is also called the "RC Designer" mode. 5mm Assume pipeline runs ¾ full and self-cleansing. The number of Auto Design Cuts are defined when you draw the Support Line and can be modified in the Slab Design Strip spreadsheet. A design example using FEA is given in one appendix. 3 Limit States Design Method 18. View example in PDF format. Waffle slab design example in Title/Summary Flat Slab Analysis and Design The analysis and design follow the equivalent frame analysis method of the ACI code, which considers a one-bay wide strip of the floor system as a continuous frame. l is 7m, the so lid heads are square of 1. In section 5. An innovative structure, undoubtedly never seen before, compact but of great impact, the design aims to improve the guest experience by allowing him to enjoy the view from three different floors, making him feel connected to the landscape. Foundation Design Generalized Design Steps Design of foundations with variable conditions and variable types of foundation structures will be different, but there are steps that are typical to every design, including: 1. 1806 and (3. 0 Design Codes 2 2. Double click Concrete to open the Bridge Materials - Concrete Window. 2 Transit Gauge Practice 4. one column provided for supporting slab that is ( from wall to center of column distance 1. In one-way ribbed slab, loads are transferred in one direction, and the main reinforcement is distributed in the same direction of the load. Hot-applied polymer-modified asphalt might be used, for example. m Thornthwaite Moisture Index (climate) Soil Permeability Vegetation Unrestrained Differential Swell. Figure 7b, and input the result in cell Slab Thickness, t. The plate increased the flexural capacity from 31 kNm/m to 47 kNm/m width of slab as shown in Fig. 12 1: SYSTEM DESIGN Example 2: 0. A slab is supported four direction however to taken the ratio b/w length to breadth than the ratio is greater than or equal two ( ly/lx >2) the slab is designed as one way slab. A waffle slab is a type of slab with holes underneath, which gives the appearance of waffles. 3 Columns Internal, edge and corner columns 72. 2 — Short term design stress-strain curve for reinforcement 12 Figure 2. Chart use for design is presented in a nice step by step manner. 2 Use (i) WSD, (ii) USD to design the two-way slab shown below, carrying floor finish = 30 psf, random wall = 50 psf. A slab on grade is defined as any concrete slab poured over excavated soil. 4 and Clause 5. 15- Contributing to GREEN or LEED certified building. This application can be used to make quick parameters calculations of beams and reinforced concrete slab not only in the office but also at the construction site. 5-bathroom condo house at 7873 Old Guild Rd is approximately 1,634 square feet and does not come with a parking spot. design of SLABS and Residential Footings. 2 Transit Gauge Practice 4. It was actually the widespread use of the “post-tensioned” slab-on-ground which induced this interest in design procedure and in many studies of reported slab failures. 3 shows the variation of the shear stress. Here, we will discuss the various considerations involved in the selection process and some typical ways that engineers approach the problem. Slab doors can be ordered in a variety of door styles made of wood, laminate, melamine, MDF, or Deco-form 3D Laminates. Don’t Make These 3 Blunders When Buying a Steel Building by Ryan Frye Published: July 15, 2014 View Comments Wouldn’t it be great if every time you were about to make a purchase, someone stepped in and told you about all the things that you could do wrong when making it – especially when making a large purchase like a steel building?. 1 Construction Sequence. For precast box culverts, the design earth cover shall be reported as the elevation difference between the point of maximum fill and the top of the top slab. 1 and rating requirements as stated in 17. When calculating the required steel area, if the button reduction of forces above columns is unchecked, the max. or 2x12s at 24” O. 1—Introduction. At the base of footing the allowable soil pressure is 5000psf and base of footing is 5’ below the existing ground surface. If you continue browsing the site, you agree to the use of cookies on this website. 1 Direct Design Method (DDM) For slab systems with or without beams loaded only by gravity loads and having a fairly regular layout meeting the following conditions:. 1 Foundation design 69-71 8. The slab spans in both […]. 2 3 Span with Link Slabs. Continuous Beam/Slab Design. Dutta , IIT Bhubaneswar. The cost function represents the cost of concrete, steel, and formwork for the slab. Example 2: Preliminary depth design of internal panel slab of interior dimension 6m * 8m supported on the beam of 300mm. 1] Use approximate elastic methods in [4. The PROKON suite includes a series of modules for designing concrete elements: * Reinforced concrete beams and slabs. While the calculations are relatively simple its. PGSuper models the various construction stages with Construction Events. Columns may use up to 6% rebar, partly because the rebar carries both tension and axial forces. Model design brief 90 APPENDIX B Worked example: Thickness design of a ground-supported floor slab 92 Bl Introduction 92 B2 Design data 92 B3 Zone A: racking 93 B4 Zone B: general storage/display 94 B5 Zone C: internal wall (line load) 94 B6 Zone D: mezzanine 94 B7 Materials handling equipment 95 B8 Relative position of truck wheel and racking. Slab doors can be ordered in a variety of door styles made of wood, laminate, melamine, MDF, or Deco-form 3D Laminates. For the previous flat slab example: a) Check the shear stress at the perimeter of column C1. In this video deisgn of two way slabs has been covered using IS 456. f ck = 30 Mpa, f yk = 500 Mpa. Detailing is provided as mentioned in SP34. Slab design A raft slab can be designed in accordance with either: Clauses 3. Guidance is. 25 MPa fy = 300 MPa Analysis and Design of Slabs Two Way. Many volumes have been written covering the manufacture of concrete and the installation thereof. Two-Way Slab Design Static Equilibrium of Two-Way Slabs Total Moment in both beams Full load was transferred east-west by the planks and then was transferred north-south by the beams; The same is true for a two-way slab or any other floor system where: 2 2 1 kN. The recommendations derived from these and other studies vary from extremely light to extremely heavy. Culvert Extension - A portion of a culvert built beyond the limits of a previously existing culvert. RC Mat Slab Design Based on 2018. Example- Composite Design Design composite concrete slab on steel deck floor for 125 psf live load. 0 Cantilevers 10. 699 kb: Yield Line Analysis for Slabs: Nodal Forces and Two-way Slabs: PDF: 0. The major structural components of a slab-on-grade foundation are the floor slab itself and either grade beams or foundation walls with footings at the perimeter of the slab (see Figures 4-2 and 4-3). The specified design strength of the concrete, is 25 MPa and the specified yield strength of the reinforcement, fy , is 400 MPa. Figure 3-1 shows the assumed construction sequence. Use US customary bars. Plain concrete and prestressed concrete are not covered in this manual. Its made of concrete. The required reinforcement area, A s, will be calculated (for slabs, the required spacing of a selected bar size is calculated). for other hand the length to breadth ratio is then two the slab is designed as two way slab (ly/lx <2 ). 3—Slab types. The requirements of AS 3660. Assume half flow over 6 hours and 6 x average flow as design maximum. The overhang of the slab beyond the face of the column is not included in the calculations. Anyway, there’s enough room now to plant some beans and peas. 0 Introduction 2. 5-bathroom condo house at 7873 Old Guild Rd is approximately 1,634 square feet and does not come with a parking spot. After sometime later, requirements for the flat slab design theory were established. Home > Publications & Media > Design Examples. Download ACI 360R-10 Guide to Design of Slabs-on-Ground Pdf Rebar compression tension Lap Length Design Example: Reinforced Strip Foundation. ) Virginia Transportation Research Council. RC Slab and Beam Design - Featuring - Plan View Showing Sections and Dimensions Isometric View of Modeled Slab System Applied Loading (SDL 1. The font comes with 8 different weights ranging from hairline thin to black bold. Design of Foundations: PDF: 1. Shoring will not be used. According to the way loads are transferred to supporting beams and columns, slabs are classified into two types; one-way and two-way. For those who do not know what are the des ign requirements of a slab. Example: Task is to derive a split factor c x for two-way slab with supports in direction x as simple-simple (SS) and in direction y o as simple-fixed (SF). 0 metres and carriageway of 7. Download Top 80 Free java Mobile Software Free autodesk 3ds max all tutorials PDF - Tutorial eBooks free. In combination with its superior functionality and excellent readability, this versatile font can be effectively used for many print and screen operations: e-books, applications, headlines, banners, posters and websites to name a few options. 5m wide cantilever on either edge which is 300mm thick. and TxDOT LRFD Bridge Design Manual 8" Slab with std. Generally, there are two types of slab which are one way and two way slabs. Distribution steel should be provided at the transverse direction. Waffle slab design example pdf in Title/Summary Flat Slab Analysis and Design The analysis and design follow the equivalent frame analysis method of the ACI code, which considers a one-bay wide strip of the floor system as a continuous frame. 0 kN/m3 Design shear strength 'b = 24. Martin Holladay explains insulating a slab on grade in the Energy Smart Details department. 6, CDH) • example of two-way flat slab with drop panels • example of two-way slab with beams in between supports • example of two-way slab with rigid supports ===== (Example 1, Section 5. Slab serif fonts are important, because they carry a lot of weight. CE 437/537, Fall 2002 Slab-On-Grade Example -Design Info 1 / 8 Design the thickness for a slab-on-grade concrete slab in a warehouse. * Rectangular bases. 3 Continuous solid slabs 5. The steps in the flexural analyses are given in Section 3. FIGURE 3-2 Example of a Floor System with Non-Standard Punching Shear Configurations 4 – ONE-WAY SHEAR IN SLAB DESIGN In applying the one-way shear alternative to design of support locations the following criteria can be used. Design example: a simple two-way post-tensioned plate for. 3 Prestressed Flat Slabs and Plates Prestressed flat slabs and plates have been developed mainly in Australia and the USA over the last 30 years. The u0 perimeter. for other hand the length to breadth ratio is then two the slab is designed as two way slab (ly/lx <2 ). To clear the concept of one way and two way slabs a table is shown below. between centre line of bearings. ACI design factors for calculating shear and moment in slab Limitation. 1 Design and Rating Requirements All new concrete slab structures are to meet design requirements as stated in 17. 7—Design of unreinforced concrete slabs. one way bending: one-way slab two way bending: two-way slab. An example is carried out to design a spread footing according to EC 2, DIN 1045, ACI and ECP codes. STRUCTURAL DESIGN. 1B Approach Slab - Asphalt Pavement <45º Skew – No Joint B2. Either way, the uptake of alt burgers has been swift—the Impossible Burger, for example, debuted in 2016 and is now carried by over two-dozen restaurant chains and over 2,000 grocery stores across North America. Design a cantilever projecting out from a room slab extending 1. If the slab does not have adequate capacity, a track reinforcement beam can be installed beneath the track to span to the floor beam or to the secondary track support beams. 15 Pile supported floors. 10 Design method from patch loads using design charts. Concrete slab and wall design and installation is a mature science. These design codes, considered to be the most advanced in the world, will lead to a common understanding of the design. The stair slab may span into landings which span at right angles to the stairs as in figure 8. 25 MPa fy = 300 MPa Analysis and Design of Slabs Two Way. While the calculations are relatively simple its. The Chromebook Spin 713 is the result of a partnership between Acer and Intel’s Project Athena , an initiative to encourage innovation in the design. the design, the link slab also acts as a semi-rigid link between spans transferring compressive, tensile, and shear stresses due to horizontal loads. Press the two edges together. Solution, From deflection criteria, as per IS456:2000, Clause 23. Best Concrete Design EXCEL Spreadsheet Slab Design; Grid Floor Analysis & Design Read about the concepts and solved examples here. 27 Design Example 1 (Typical House with 2 Rooms and Verandah) - Two-way Restrained Slab - Table 3. BSS09011999-1 Abstract This design example illustrates the Empirical Design Method for composite concrete bridge decks specified in Article 9. This theory again mentioned that the design moment must follow Lewe's theory (1920, 1922) or theory developed by Marcus (1924). Design example: a simple two-way post-tensioned plate for. Because composite slabs are designed as one-way slabs, every. 9—Design of shrinkage-compensating concrete slabs. Emily Henderson carefully laid this floor so that every other square would have an inverted colorway; it’s a simple trick that really makes the room pop. We will focus our attention on tension-controlled sections. 1 and rating requirements as stated in 17. 01D) - by Robert G. In this video we expand on the theory of flat slab design, the slab strips, column and middle strips in flat slabs and also i show you the basis of analysis and design of flat slab examples as. 2), Fatigue (5. 5m of waffle slab, and is to support an imposed load of 5 kN/m 2, design an interior panel of the waffle slab, and a supporting beam. According to the way loads are transferred to supporting beams and columns, slabs are classified into two types; one-way and two-way. This video shows you how to calculate the amount of concrete required to pour a Concrete Slab on Ground with Splayed edge beam and a Rebated edge. 2 Use (i) WSD, (ii) USD to design the two-way slab shown below, carrying floor finish = 30 psf, random wall = 50 psf and live load = 60 psf [Given: f c = 3 ksi,f. 7 kip Coefficient of Friction tan r = 0. Even though, there are lots of experts using the resources as well as understanding within the industry that may procedure the actual industrial high quality granites very well. In two way slabs, load will be carried in both the directions. At the base of footing the allowable soil pressure is 5000psf and base of footing is 5’ below the existing ground surface. Assume half flow over 6 hours and 6 x average flow as design maximum. SLAB DESIGN Reading Assignment Chapter 9 of Text and, Chapter 13 of ACI318-02 Introduction ACI318 Code provides two design procedures for slab systems: 13. This work was followed up by Wing & Kowalsky, who used this RC link slab design to implement and monitor the performance of the first link slab bridge in North Carolina by performing controlled live load tests on the. Each bridge is formed by steel girders acting compositely with a reinforced concrete deck slab. The International Residential Code ® (IRC) includes prescriptive methods for. the slab are explored. #2 Two Way Slab: Two way slab is a slab supported by beams on all the four sides and the loads are carried by the supports along with both directions, it is known as two way slab. Steel-reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving (see below). 1 and rating requirements as stated in 17. Section Civil & Geotechnical Engineering 1 Calc. One way slab is normally designed for gravity load only. Economically design post-tensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. 2R Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures. I'd pour a deep footing with sonotubes where the feet are, then pour a standard 4" slab around them for the rest of the hardware. 2—Definitions. She said I was always drawing pictures when I was a little kid. 85 f c' x a x b = A s x fy ⇒ a = (A s x fy)/( 0. Difference Between One Way Slab And Two Way Slab: 1. 2 Dimensions and reinforcement details of all the footings 72-92 Chapter 9 Results. 0 3 Panel Features and Benefits 1. Example 1: Design of interior three span slab as shown below. Chajjas and verandahs are a practical example of one way slab. It consists of either the design truck or a combination of design truck and design lane load. 1) L/d < k1Xk2Xk3Xk4XBasic Value Where, k1 = Depends upon span (above 10m) K2 = Depends on. ACI 318 provides two alternative methods for designing two-way slabs for concrete, The equivalent frame method? (EFM) and the direct design method (DDM). The PROKON suite includes a series of modules for designing concrete elements: * Reinforced concrete beams and slabs. Calculate loads from structure, surcharge, active & passive pressures, etc. b) Based on the components of slab. , center to center of bearings. l-Purpose and scope Consistent with the mission of ACI Committee 360, this report presents state-of-the-art information on the design of slabs on grade. The Engineer assumes. Powerful spreadsheet to design shear walls under wind plus dead load combination. Waffle slabs are supported on beams or columns, where the support zones are made to be uniformly thick. In this example, modeling the wall in one segment will result in more accurate loads in RAM Concept. For slab-on-ground floors it provides an understanding of the footing/slab selection, design, detailing and construction requirements contained in AS 2870 and the Housing Provisions of the BCA. Now a days rich mixture is used in concrete, quantity of steel is used more. If you spend hours calculating wall stiffnesses, ∑(kr2) etc. Roadway Grade = 1660. We’re passionate about finding solutions to every design challenge in order to create compelling digital experiences that engage and delight. A square footing of 0. RCC Dog-legged Staircase design Excel Sheet. Architectural freedom, Flexibility in Design and Use, Fast and Inexpensive, Savings and Environmental Benefits. All standard box culverts have. za SABS Licensed exclusively to SABS. 1_452 the professional development series is a unique oppor- analysis and design of post-tensioned, two-way slabs for example, an 8-inch-thick slab is typical for a. 5 m for a hall construction in a school. 5% is used according load. 9 m q = 20 kN/m g = 15 kN/mk k From the table of Span/d for initial sizing Span d d Span mm. Each bridge is formed by steel girders acting compositely with a reinforced concrete deck slab. 5m Variable load 4kN/mm2 Slab thickness 175mm Fck 25N/mm2 fyk 500N/mm2 Cover to the reinforcements 25mm. 0 kip Total Dead Load WDL = 60. Any quality design for such a foundation must. Two-way spanning slabs For rectangular slabs with standard edge conditions and subject to uniformly distributed loads, normally the bending moments are obtained using tabulated coefficients. This is usually a mistake as pre-cast utility and pipe protection slabs and standard design details are often very lightly reinforced and not designed o take significant imposed loadings, particularly where the slab needs to span over a wide trench. Inspection Testing: 1. Building systems/frame Building structure Concrete building systems/frame Publisher History. With accurate to temperature and shrinkage,. Flat slab construction, where the slab is supported by the columns without beams, is also described. LESS WASTE SHARPER DESIGN Voided biaxial slab. Design of two way slabs(d. Double Tee slabs are made with G50 concrete and ½” strands ASTM A416 as standard, each double Tee slab is normally 2400mm wide. 2 Design Method 2 2. The permanent load is calculated along the slope length of the stairs but the variable load is based on the plan area. Main reinforcement for two way slabs designs in both directions. 5 kN/m 2 and tandem axle load of 100kN (300kN/3m lane width). For the analysis, the composite slab is divided into strips based on the support layout and loading conditions. between centre line of bearings. 1, L/d ≤ αβγδλ Since the shorter span is greater than 3m so we can't use the clause 24. txt) or read online for free. Example 1: Design of interior three span slab as shown below. Use US customary bars. The goal of this reinforced concrete design example is to find the design moment strength of a reinforced concrete one-way slab per ACI Code 318-11. Click Download or Read Online button to get examples of slab design by the yield line theory book now. The edge-to-edge width of the bridge is 28. The design of the connectors has to be adequate to sustain the shear stress. This course 'Design of Reinforced Concrete Slab' gives you detailed understanding, explanations and procedures for the design of RC Slabs. Ipe (pronounced ee-pay) is a dark beautiful brown hard wood. Easy, Fast and Reliable. BS 8110: Part 1: 1997) 13. This video shows you how to calculate the amount of concrete required to pour a Concrete Slab on Ground with Splayed edge beam and a Rebated edge. County: Any Hwy: Any Design: BRG Date: 6/2010 Inverted Tee Bent Cap Design Example Design example is in accordance with the AASHTO LRFD Bridge Design … Various types of RCC Slabs | Design of RCC Structures www. Effective depth d= Span /((L/d)Basic x modification factor) For obtaining modification factor, the percentage of steel for slab can be assumed from 0. com web: www. A concrete slab is shown below which has the same setting out dimensions as the slab in example 6. Wall Footing Design Example Statement A 10” thick wall carries a service dead load of 8k/ft and service live load of 9k/ft. Concrete Deck Slabs on I-Girders, U-Beams, Spread Box Beams, Spread Slab Beams, Steel Plate Girders, and Steel Tub Girders ♦ Materials ♦ Geometric Constraints ♦ Design Criteria ♦ Detailing 3. Roadway Grade = 1660. Effective depth d= Span /((L/d)Basic x modification factor) For obtaining modification factor, the percentage of steel for slab can be assumed from 0. 3 Prestressed Flat Plates 1 2. You should make your slab 4” wider than the width of your steel building and 6” longer. design of rcc slab in pdf format Free Software Download - design of rcc elements xls, design 0f 15 rcc beam, rcc footing design software and more. Detailing is provided as mentioned in SP34. Figure 3-1 shows the assumed construction sequence. 5% is used according load. 1_452 the professional development series is a unique oppor- analysis and design of post-tensioned, two-way slabs for example, an 8-inch-thick slab is typical for a. UHPC •UHPC Material Properties •Design Assumptions. More detailed explanations and examples of reinforced concrete beam and slab design can be found in my. BS 8110, however, has an earlier withdrawal date of March 2008. 058 6x6-#6 gage, or 6x6 -W2. Overhead Slab Design. Flat slabs without drops (thickened areas of slab around the columns to resist punching shear) can be built faster because formwork is simplified and minimized, and rapid turn-around can be achieved using a combination of early striking2 and flying systems. 20% concrete reduction in other structural elements. Civil Engineering Design (1) 7 Dr. Here are the steps for the Design Procedure for One Way Slab in steps. For the analysis, the composite slab is divided into strips based on the support layout and loading conditions. Perimeter of flat slabs 8. To avoid creating lines of weakness, two TJs (an EJ or a CJ) should be provided to. If you would like to account for live load reduction you can either reduce the loads manually after importing or manually assign live load reduction parameters in the. Architectural freedom, Flexibility in Design and Use, Fast and Inexpensive, Savings and Environmental Benefits. Size the slab. The examples cover the principal steps in the verification of the. Here we are sharing some important excel sheets of various segments for designing purpose. For suspended floors it covers both upper floors and those at ground level where a slab-on-ground may not. This was part of a multi-sheet project for the complete design of an A-frame wood structure. β1 cannot be less than 0. The Design Process. 1 mtr width and length 7. The metal decking has a clear span of 12’1” and has a self weight of 2. Classification of Flat Slab. Institute (PTI) Design Procedure for designing post-tensioned slabs-on-ground. find Asw for the u1 perimeter. The Advantages & Disadvantages of a House Built on a Slab Vs. INTERNATIONAL JOURNAL OF CIVIL AND STRUCTURAL ENGINEERING Volume 1, No 4, 2011. Without significantly increasing the slab depth and weight compared to those of composite slabs with typical span, it was found that these long span slabs showed good performance under the load tests. 3 Limit States Design Method 18. Figure 3-1 shows the assumed construction sequence. Pipeline protection slab design is often neglected in favour of standard details and generic slab designs. com › Building Construction Reinforced Cement Concrete Slab. The complete version of this design example, including concrete design for various loading conditions, can be found in the new book, Foundation and Anchor Design Guide for Metal Building Systems (McGraw-Hill, 2013). DESIGN OF THE FLAT SLAB STRUCTURES. The slab that was used for this design has a total slab depth of 6”. 4 Summary of design process 4 3. Related Questions. This design guide provides a basic procedural outline for the design of slab bridges using the LRFD Code and also includes a worked example. 2 Transit Gauge Practice 4. 2 Effect of depth on Deflection 4. Deck is 46 ft wide with a 15 degree skew Roadway is 44 ft wide. In section 5. No direct allowance for block thickness is made in the design calculation, but the block thick­ ness is selected from the type and weight of vehicles that will use the pavement. Based on the boundary condition, you can determine the axial thrust and the bending moment. These materials are. 1, so For the internal panel, ie. to create interesting shapes. 20% concrete reduction in other structural elements. 1D Approach Slab - Concrete Pavement <45º Skew – No Joint. Waffle slab analysis and design is similar to the procedure used with flat plates except that special considerations need. Loading scheemes 9. The design load combinations are as follows. The software is for the analysis of the soil structure interaction of footing on reactive (or expansive) soils. For the previous flat slab example: a) Check the shear stress at the perimeter of column C1. Thickness of slab: 6 in. Direct design method is used for the structural analysis and design of slabs. The manuals contain a lot of useful information, including design guidelines, aids, and examples, which can help with the design of composite deck slabs. After receiving numerous requests, we are providing an interactive Microsoft excel spreadsheet for design of timber formwork systems for elevated concrete slabs. 1D Approach Slab - Concrete Pavement <45º Skew – No Joint. f ck = 30 Mpa, f yk = 500 Mpa. We will refer to the PCA Rectangular Concrete Tanks design manual as PCA-R, and the circular tank design manual as PCA-C. Model design brief 90 APPENDIX B Worked example: Thickness design of a ground-supported floor slab 92 Bl Introduction 92 B2 Design data 92 B3 Zone A: racking 93 B4 Zone B: general storage/display 94 B5 Zone C: internal wall (line load) 94 B6 Zone D: mezzanine 94 B7 Materials handling equipment 95 B8 Relative position of truck wheel and racking. Design and load rate the first interior girder (Girder B). RCC Dog-legged Staircase design Excel Sheet. The barriers are 1. * Prestressed concrete beams and slabs. Concrete slab installation costs a minimum of $5. definitive guide to the proper design and specification of steel decks. Design of Reinforced Concrete Slabs 107 B = 1. Only the design of Slab Bridge will be used for illustration. 699 kb: Yield Line Analysis for Slabs: Nodal Forces and Two-way Slabs: PDF: 0. The design I am going to share with you today is Design of Flat Plate Slab as by definition; Flat plate slab is that in which slab is directly supported on columns without column capital, drop panel or beams. The width of supporting wall is 230 mm. Select a perimeter beyond the boundary of column support at distance “d” for. The plate increased the flexural capacity from 31 kNm/m to 47 kNm/m width of slab as shown in Fig. The complete set of design examples includes 155 example problems totaling 884. The unit weight of reinforced concrete is assumed to be 24 kN/m3. We will refer to the PCA Rectangular Concrete Tanks design manual as PCA-R, and the circular tank design manual as PCA-C. 5 m for a hall construction in a school. 5m Variable load 4kN/mm2 Slab thickness 175mm Fck 25N/mm2 fyk 500N/mm2 Cover to the reinforcements 25mm. Bending will take place in the two directions in a dish-like form. Determine the loads based on the building's parameters (Section D. E = the modulus of elasticity for the slab ( typically 4. of 100 to 150 mm at the free end. 0 kip Total Dead Load WDL = 60. Poor design can cause harm to your structure by causing slab foundation cracks that need need to be fixed in your damaged slab. EXAMPLE 12: RAIL ANCHOR SLAB DESIGN Rail anchor slabs have been used with good performance under Allowable Strength Design (ASD) practices. The method is demonstrated in SHEAR EXAMPLE 2. One way slab is normally designed for gravity load only. 0 Corbels 9. 10 Design method from patch loads using design charts. 1 Design and Rating Requirements All new concrete slab structures are to meet design requirements as stated in 17. This short document can but scratch the surface of the technology. Slab doors provide the look of a solid piece of material that can have an outside edge detail applied to add a little distinction to this otherwise simplistic style. A2-Slab thickness design by WRI method A3-Design examples using COE charts A4-Slab design using post-tensioning A5-Shrinkage-compensatingconcreteexamples CHAPTER l-INTRODUCTION l. In addition to general ultimate and serviceability limit state design issues, practical design considerations such as the formation of holes in the slab, support details, fire protection, and attachments to the slab are discussed. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi. 12 Preliminary design method to determine initial slab. For example, the single-span composite slab area adjacent to the opening in Figure 1 would be one strip, and the remaining composite slab area, with three unequal spans, would be another strip. The High-Contrast Design Photography by Sara Tramp; Design by Emily Henderson Design. the design, the link slab also acts as a semi-rigid link between spans transferring compressive, tensile, and shear stresses due to horizontal loads. Concrete compressive strength (fc′) = 3 ksi. Potential benefits: Up to 35% lighter than solid slab. Design a thickened slab to support the columns and. For slabs with light loads, as those for homes, include wire mesh midway up the thickness of the slab to reduce cracking. 27 Design Example 1 (Typical House with 2 Rooms and Verandah) - Two-way Restrained Slab - Table 3. Slab reinforcement, cantilever reinforcement, slab thickness, roof apex reinforcement. Being a mere 0. In this video we expand on the theory of flat slab design, the slab strips, column and middle strips in flat slabs and also i show you the basis of analysis and design of flat slab examples as. The span length. To do that, we run slab strips perpendicular to the ribs. Labor for this foundation will cost about $7,000 , for a total of $10,200. Essential spreadsheet for two way slab design. LANL Standard Drawings and Details either (1) depict required format/content or (2) are templates that are completed by a Design Agency (LANL or external AE) for a design drawing package, in a manner similar to specifications. Example – A simply supported hollow‐core slab is 20’‐0 in length. Metallurgy a semifinished piece of iron or steel so rolled that its breadth is at least twice its thickness. 1964 Montreal, QC Interview by Jim Donaldson I’m curious as to how you decided to become and architect. Example Problem Of One Way Slab Design: A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft. Hence crack widths do not normally need to be checked in columns (crack widths are checked in beams and slabs in water retaining structures and bridges, but don't need to be for columns). Resistance factors of 0. 3 Design Preliminaries. Load on slab: 4″ thick mud. * Rectangular and circular columns, and also columns with any general shape. At the base of footing the allowable soil pressure is 5000psf and base of footing is 5’ below the existing ground surface. 16 • 17 Three nu­ merical design examples are included to demonstrate the proposed design method. CE 433, Fall 2006 Slab Design Example 1 / 6 Design a one-way slab for an exterior bay of a multi-story office building using the information specified below. to have a minimal length. The slab and/or wall thickness is increased when shear requirements dictate or the maximum steel percentages are exceeded. 27 Design Example 1 (Typical House with 2 Rooms and Verandah) - Two-way Restrained Slab - Table 3. In multifamily residential structures, a concrete Podium Slab typically acts as both a structural floor and as a transfer slab for wood and light gauge steel framed construction above. 007, by developing micro cracking within, is what allows. Based on the boundary condition, you can determine the axial thrust and the bending moment. Example 1: Design of interior three span slab as shown below. 3 Link Slab Section Girder Haunch Deck. The thickness of such slabs is varied from max. Slab or crawl-space foundations present about the same number of advantages and disadvantages, so the choice you make. The grid is three-dimensional, with a layer of rebar near the bottom of the slab and another near the top. The cross section of the profiled sheeting is shown in Fig. Guidance is. For example, slabs with a geometric design (such as Rockwell or Memphis) have a more consistent stroke width, which makes them easier to read, so they're great for text. , including the ½ inch integral wearing surface, is assumed. 1 Standard Deck Slab Design The NMDOT standard deck slab detail and slab design tables are shown below. Columns may use up to 6% rebar, partly because the rebar carries both tension and axial forces. The success of Super Slabs can be attributed to the effective combination of superlative products and dedicated service excellence. 1 INTRODUCTION 4-l 4. Concrete floating slabs can and, in areas that experience freezing temperatures, should be insulated. PGSuper models the various construction stages with Construction Events. This design example is for end bearing piles that are driven through cohesive soil and tipped out in rock. For the previous flat slab example: a) Check the shear stress at the perimeter of column C1. However, this is less than the minimum of 2 inches. RD/GN/042 Pavement Design for Carriageway Construction Page 4 of 42 1. The font comes with 8 different weights ranging from hairline thin to black bold. For help on designing a slab using this method, go to Help-Contents-Graphical Interface Help- Concrete Design Mode-Examples-BS8110 British Code Examples-Slab Design. In this post, I will go over the sixth example in our course that covers the analysis and design of reinforced concrete one-way slabs. The white walls with their white beadings and panels are a nod to Scandinavian design. That is, the load factor at which the ULS moment equals the moment capacity. STRUCTURAL DESIGN. 5% difference in the average. Form Procedure. Roadway Grade = 1660. You can design a single span (simply supported, fixed or cantilever) or many continuous spans. Best Concrete Design EXCEL Spreadsheet Slab Design; Grid Floor Analysis & Design Read about the concepts and solved examples here. Chart use for design is presented in a nice step by step manner. Outline: Derivation of the ultimate moment equation Singly. Note: File is not password. Adopt M-20 concrete & Fe-415 steel. TEST PROGRAM The test program included two large test specimens of composite construc­ tion, one being a continuous rein­ forced concrete deck slab cast on two simple-span steel beams, and the other being a similar. Design Spreadsheets. 9'-0" Beam Spacing, 3'-0" Overhang Deck Design (Traditional) [9. 1 (ACI 318-11 13. In multifamily residential structures, a concrete Podium Slab typically acts as both a structural floor and as a transfer slab for wood and light gauge steel framed construction above. Download Top 80 Free java Mobile Software Free autodesk 3ds max all tutorials PDF - Tutorial eBooks free. Two Way Slab: Two way slab is supported by beams on all the four sides and the loads are carried by the supports along with both directions, it is known as two way slab. Assume half flow over 6 hours and 6 x average flow as design maximum. Sloping slabs under gravity load would be subjected to bending and axial thrust. The design of composite slabs and beams is discussed in detail in relation to the Eurocodes and BS 5950. This course 'Design of Reinforced Concrete Slab' gives you detailed understanding, explanations and procedures for the design of RC Slabs. EXAMPLE ON THE ANALYSIS AND DESIGN OF CONTINUOUS SLAB AND BEAM FOOTING PER BS 8110-1:1997. 2 m deep, 0. 3 Limit States Design Method 18. Tendons today are seven high-strength steel wires wound together and placed inside a plastic duct. Oral Buyukozturk Outline 1 o Role of the designer (engineer) of a structure Design criteria for concrete o Two schools of thoughts 1. This would happen because three pumps operating at a lower frequency may use less energy that two pumps operating at 60 hertz. 2 of the AASHTO LRFD Bridge Design Specification. From there an analysis is considered and the program will then design the slab based on design strips. The two classifications are one-way slab and two-way slab. The design vehicular live load HL-93 shall be used. Finite element design without strips is also available and useful for slabs with complex geometries. Example structuremag. Concrete compressive strength: f c ' = 4000 psi. Senior Research Scientist (The opinions, findings, and conclusions expressed in this report are those of the author and not necessarily those of the sponsoring agency. Concrete compressive strength (fc) = 3 ksi. One way slab is normally designed for gravity load only. User Note: The following is an example of a composite slab as it could be specified on the contract drawings: “Composite slab shall consist of 2 inch deep G-60 galvanized composite steel deck, design thickness 0. The result is this publication, the Steel Deck Institute Design Manual for Composite Decks, Form Decks and Roof Decks, a. (two way slabs) are continuous with verandah (one way slab). Rectangular Beams and One-way Slabs Page 3 of 9 Design of Rectangular Beams and One-way Slabs (Continued) a = β1 c Where β1 = 0. • When zd is determined, the prestressing force required to balance an. 7 KN/m2 in addition to self-weight and a characteristic live load of 3 KN/m2. The concrete is normal weight. Two Way Slab: Two way slab is supported by beams on all the four sides and the loads are carried by the supports along with both directions, it is known as two way slab. Appendix 7—Construction document information. 1) L/d < k1Xk2Xk3Xk4XBasic Value Where, k1 = Depends upon span (above 10m) K2 = Depends on. 35 AASHTO Table 3. m Thornthwaite Moisture Index (climate) Soil Permeability Vegetation Unrestrained Differential Swell. Press the two edges together. Download Top 80 Free java Mobile Software Free autodesk 3ds max all tutorials PDF - Tutorial eBooks free. The metal decking has a clear span of 12’1” and has a self weight of 2. Hence, the analysis. EXAMPLE CALCULATIONS The following example is presented a historic example and final design is at the discretion of the designer. Click Open Template button and select the LRFR Design Load Rating to be used in the rating and click Ok. 6, the Concrete Design Handbook). More accessible for repairs than slabs. Please read the lauses mentioned in the video while solving the problem. Example: Design a slab and girder bridge with 7. • The toe slab is subjected to an upward soil reaction and is designed as a cantilever slab fixed at the front face of the stem H. Depending on the arrangement of supports, a slab may be subjected to. Stay safe and healthy. Design a thickened slab to support the columns and. For elevated slabs, live loads are always imported as unreduced live loads. The concrete is normal weight. design of SLABS and Residential Footings. Superimposed dead load: W SD = 10 psf. Standards • The SDI developed the fol­. The u0 perimeter. The problem statement asks to, Find the design moment strength of a one-way slab given the following details: Total Depth, h = 7 inches. Design of two way slabs(d. 25 MPa fy = 300 MPa Analysis and Design of Slabs Two Way. Design Of Reinforced Concrete Structures ii Two-Way Slabs 1 1. A civil engineer must know all the aspects regarding the flat floor system. There needs to be a vapor retarder at least 6 mil between the base course and the slab. 5m of waffle slab, and is to support an imposed load of 5 kN/m 2, design an interior panel of the waffle slab, and a supporting beam. d) Determine the area of shear reinforcement required on a perimeter. However, this is less than the minimum of 2 inches. Two way RCC slab designing tool in Microsoft excel developed by Shankar Tayal a 3rd year student of school of infrastructure, Indian Institute of Technology, Bhubaneswar. Adopting Knapton's (7) recommended design equiv­. 1 and rating requirements as stated in 17. 2 of the AASHTO LRFD Bridge Design Specification. Concrete Slab Design - Two Way Slab Direct Design Method. of clear roadway. Now a days rich mixture is used in concrete, quantity of steel is used more. Design and Construction of Concrete Formwork 7-3 Economy is important because the costs of formwork often range from 35 to 60% or more of the total cost of the concrete structure. we assume each meter of the beam has dimensions of 230 mm x 450 mm excluding slab thickness. The slab that was used for this design has a total slab depth of 6”. Does anyone have any insight or tips on a slab on grade design for heavy mining trucks? For example, a mining truck manufacturer needs a parking lot designed for their finished heavy machinery and one of their trucks has a single wheel load of 62k but is spread in 13. * Prestressed concrete beams and slabs.