Deck slab design example

Deck slab design example

5" x 4. 500 0. 1 The slab is designed using the AASHTO Load & Resistance Factor Design Method for transverse slab designs. 00 AASHTO 5. Practical examples of open trough and re-entrant profiled steel sheets used for composite slabs Cover width: 1000 Multideck 60 323 mm 9 mm 60 mm 15 mm Cover width: 600 300 mm 60 mm ComFlor 60 207 mm 58 mm Confraplus 60 Cover width: 1035 183 mm 73 mm Cofrastra 70 Cover width: 732 Cover width: 900 Multideck 80 300 mm 9 mm 80. This design should always be used unless approval to use a thinner deck is obtained from the State Bridge Engineer. 4 developed by Alex Tomanovich. 25 + 6. General 9 2. The resulting minimum deck slab thickness per ADOT guidelines is 8. Slab thickness is measured from bottom of ribs. . 5-385 Appendix 5-B12 Flexural Strength Calculations for Composite T-Beams. The concrete has f′. The conventional bridge design method results in the provision of excessive transverse steel reinforcement in the concrete bridge deck slab due to the fact that, the slab is Example I-1 Composite Beam Design. 6-A7-3 Deck Bulb Tee Girder Details 2 of 2 (pdf 96 kb) (dwg 79 kb) Slabs Voided biaxial slabs are reinforced concrete slabs in which voids reduce the amount of An early example is the Pantheon in Rome, built 125 AD. 5 ksi Concrete elastic modulus (calculated using S5. Instrumentation 19 3. General 17 3. 2 Multiple Deck Types or Directions Along the . 5. gif. For bridges built on a new alignment or in a high fill area, approach slab length should be 20 ft. But you can with a dovetail profile. 2 Flexure and vertical shear: The design ultimate loading = (w u, DL + w u, LL) = 3. 1 A typical example of composite floor construction, Design Step 4 – Design of Deck Prestressed Concrete Bridge Design Example Task Order DTFH61-02-T-63032 4-5 Future wearing surface: Minimum = 0. Superstructure Design 1. For falsework the deflection shall be limited to span/240 with a maximum of 1". centres. A composite column may be either a hollow section steel tube filled with concrete, or an open steel section encased in concrete. 0 * (3. The manuals contain a lot of useful information, including design guidelines, aids, and examples, which can help with the design of composite deck slabs. 2 The top ½” of the deck on bridges with overlays, or the top 1” of the deck on bridges without overlays, is neglected as part of the effective depth to account for long-term wear and deterioration under service conditions. nated by making the deck continuous while keeping the girders as simple­ spans. Dead load (slab) is supported by the form deck, so not a variable for shear or bending; otherwise, the design approach is similar. Example Problems For Concentrated Loads Example 1: Point Load This problem is designed to demonstrate how to check the ability of a composite slab to carry a 3000 lb point load over an area of 4. placing and removing deck slab forms is a safety concern to the workers. 5-394 This web seminar covers the design and analysis of untopped and topped steel deck diaphragms, including examples. 6 ounce per square foot). ) in both transverse and longitudinal directions. Given: A series of 45-ft. 8 Jointless bridge decks supported by simple-span girders have been used both in the United States and abroad. 4 Effect of Openings on Effective Slab Width 2-20 . Title Reinforced Concrete Slab Design Using The Empirical Method Publication No . The span of the deck is 12. 4. ) Capacity reduction factor Effective depth of composite slab (in. Design of Continuous Slabs For the analysis, the composite slab is divided into strips based on the support layout and loading conditions. The deck may consist of 3 girders spaced at 2, 45 m. 10. 33 feet (88 in. Slab structures with The loaded back axle is negligible in this example. There was an affair of “Structural Calculation Forgery Problem” known as a  view of composite slab behavior and design according to EC and its critics discussed a major concern, for example, in earthquake design, to globally distribute  Aug 31, 2008 models of the jointless bridge deck system including link slab, bearings, abutment APPENDIX F: Link Slab Analysis and Design Example. 1. The purpose of this report is to pre-sent guidelines for the design, manu-facture, handling, shipping and erection of precast prestressed concrete bridge deck panels. 0 inches, excluding any provision for  Jun 27, 2017 Applying these provisions to the design of deck slabs rarely controls deck slab For this example, a slab thickness of 8 in. This web seminar covers the design and analysis of untopped and topped steel deck diaphragms, including examples. Include  May 25, 2015 Deck slabs in ladder decks span longitudinally between transverse cross-girders and the primary function of these cross-girders is to support . yield strength to ultimate tensile strength γ3 = 0. 65 Maximum = 1. The design scheme of the example is shown in Fig. INTRODUCTION. For fire resistance levels of 90 and 120 minutes, the BONDEK® ribs contribute significantly to the resistance of the slab in fire. shown on pages 42 and 43 of our Design Manual and Catalog of Steel Deck Products. BONDEK® composites slabs can be designed to achieve a fire-resistance of up to 240 minutes. Buettner and Roger J. The section of the deck con­ necting the two adjacent simple-span girders is called the link slab. Welds still are an accept-able method of fastening side laps. 7 presents sample load tables and instructions for the use of the tables. 12. 4: Design of a Composite Slab A composite slab consists of a cold-formed profiled steel sheet covered with a concrete slab containing  Deck and soffit slab details shown in Bridge Design Details 8-30 are applicable when using. Although the cross section of the cobiax is more complex as compare to solid slab and flexural design posses no significant problems. If possible, allow a 2 ft. 6 in 4 (I req’d = 1555. In this example, the equivalent strip method will be used. 4. View example in PDF Format (Design Example 1) Download example as a Mathcad Workbook (Zip)  Cast-in-Place Flat Slab Bridge Design. CONCRETE DECK SLAB DETAILS CONTRACTOR IS RESPONSIBLE FOR TEMPORARY BRACING DESIGN CALCULATIONS. Concrete Deck Slabs on Adjacent-Framed Beams (Slab Beams and Box Beams) ♦ Materials Chapter 5 addresses the design of concrete floors as it relates to their constructibility. 0 in Structural Thickness = 7. abutments, and bridges with concrete approach pavements. The beams are ASTM A992 and are unshored. 75 feet and web width of 12 inches, the effective length is 6. which contains a much time for designer to concentrate on the calculations. The final decision can be affected by cosmetic concerns within the building, fire rating restrictions, and diaphragm requirements. For this example, a slab thickness of 8 in. . Normal weight (145 pcf) 3000 psi concrete is used. 18 gage composite deck, and 4½ in. Reinforced The first example shows a bridge deck slab subjected to the action of. 1-1 and C3. supported slabs of the same depth (Figure 3). 6 in 3 (S req’d = 151. 5. The SDI Diaphragm Design Method and AISI Test Standards for Connections and SDI Design Manuals The Steel Deck Institute (SDI) has developed several manuals related to the design of composite deck slabs. • Given the value of t str slab. Prestressed Precast Concrete Beam Bridge Design. 0336 in. An exposed aggregate surface can be used to obtain the required roughness for new decks, precast or cast in place. 1 Design Method 17. The concrete is normal weight. 2. ) and the slab is multi-span. Figure 2 . bubbledeck slab is designed exactly the same way as the solid slab. 150 kcf See AASHTO Table 3. LRFD Deck Slab Design Example: 7 ft. Slab shear reinforcement: (2)#4 @ 12 inch (Spacing ~ 3 times slab thickness, OK). The variables for a composite deck slab include span length, gage thickness, rib depth, slab thickness, unit weight of concrete and concrete strength. For the equivalent strip method analysis, the girders act as supports, and the deck acts as a simple or continuous beam spanning from support to support. In order words, the longer the value of H deck becomes, The same hollow slab principle of creating voids within the concrete slab to lighten the building structure was developed in 1997 South Africa, which was called cobiax system. Figure 1. 0 1 1. Both composite deck slabs and form deck slabs can be analyzed and designed for 3 different loading conditions. 12,13,14 Thickness of metal deck plate elements usually varies from 22 ga. maximum spacing (0. 5 mm 15 mm 80 mm projects. For easier comprehension an example slab as shown below will be used to  ofGfcrhmiUigg The design principles of a solid slab bridge deck may be illustrated by the following illustrative example: Illustrative Example 1 : Design a solid  Design a one-way slab for an interior bay of a multi-story office building using the Submit hand calculations matching the spreadsheet for one section. The steel decking acts as the tension reinforcement for the slab and also as permanent shuttering capable of supporting the weight of the wet concrete. , including the ½ inch  EXAMPLE 6 - DECK DESIGN, INCLUDING COLLISION ON A TYPE 7 & TYPE 10M . 2. The bridge profile is shown in Figure 1 and the typical section is shown in Figure 2. Vulcraft Deck Design Tools. A RCC deck slab is to be constructed over a channel on a national highway for Design a reinforced simply supported deck slab concrete bridge for a state  Software for use as a design tool for Ruukki´s SteelComp composite slabs design of any other type of composite slab, because the calculation formulae for the  and design guidelines for concrete structures reinforced with FRP bars have An example of calculating . Check the shear strength of the steel beam. The bridge consists of a 120-foot simple span. H deck shown in a figure is height of a steel deck when a design became impossible. ) Bending deflection due to wet concrete (in. says. 120'-0" Figure 1 – Profile the back of the barrier and the edge of the slab is less than 2 feet, pin the barrier to the deck. deck slab in this region shall be roughened to amplitude of 1/2". calculations for the design of composite slab, steel beam and their connections are submitted in this project. 500 12. The tire foot print is 4" x 4" and the wheels and axles are spaced 48 in. 2, an FE shell element model for this deck is easily set up by just extruding the centrelines of the slabs  Elevated slab design is a feature that is only available in RISAFloor ES (as to a Beam Supported Floor, where the floor is a deck that is supported by beams. c = 4 ksi. between centre line of bearings. Shoring will not be used. The deck should also be designed to carry 30 units of HB load. The concrete deck depth cannot be less than 7. The deck slab of a slab and girder bridge spans transversely over the girders which run longitudinally spanning between abutment or pier supports. In ultimate limit state, we consider bending resistance, vertical and horizontal shear re- the profiled deck in non-composite stage is less than l/325 or 20 mm, whichever is smaller, then the ponding effect may be ignored in the design of profiled deck. Moment of inertia used for deflection calculations = {Ic + Iu)/ 2. clear roadway having a span of 12. 5/17/ Slab with wearing course . We use them frequently ourselves. 75 = 10. For roof slabs, a span-depth ratio limit of 50 is sug- gested and for floor slabs, a limit of 40 is sug- gested. Formwork for a slab deck is like that for any other slab; sheathing of metal, wood, plywood, or The deflection for formwork should be limited to span/360 with a maximum of 1/16” for deck plywood and 1/4” for walers. All concrete slab structures are limited to a maximum skew of 30 degrees. Fasteners 15 EXPERIMENTAL INVESTIGATION 17 3. Beam Spacing  Oct 31, 2018 A. pptx), PDF File (. Thereby, deck structural slab is suitable for a design of small-scale slabs that is about 1-2m. PCI MANUAL FOR THE DESIGN OF HOLLOW CORE SLABS SECOND EDITION by Donald R. RoofDek Analysis Version:1. 00 1. For noncellular decks 1½ in. 5 kN/m 2 and knife edge load of 33kN/m . Special Design Example. BSS09011999-1 Abstract This design example illustrates the Empirical Design Method for composite concrete bridge decks specified in Article 9. May 17, 2017 Detailed updates – deck overhang design. A minimum approach slab length of 14 ft should be used on all new bridges. o/c are carrying the loads shown below. , 2 in. 0 metres and carriageway of 7. 2 Deck Design This example will use the standard deck slab design as explained in the Design Guide. Iu. Specifically, the flexural moment capacity for both positive and negative strong axis moments, one-way beam shear, punching shear, and deflection are all evaluated and checked. Caltrans This MTD does not apply to the design of prestressed deck slabs and deck slabs subjected to special Other types of barriers ( example:. 2/ft. 2 - Determine Minimum Slab Thickness. A group Appendix 5-B11 LRFD Wingwall Design Vehicle Collision . 3. buffer when placing the temporary barrier on new bridge deck to avoid the need for installing pins in the new bridge deck. Applying these provisions to the design of deck slabs rarely controls deck slab design. Any one design code can be used in any one design run. ) one foot from the end of slab satisfies these requirements. 4 bars at 9 in. 750 RCC T-BEAM 3. Download structural analysis software DECKSLAB 1. ), depending on configuration of the section. ) Total deflection of deck due to wet concrete and ponding (in. If we take an example of a typical box girder as in Figure. Steel-Deck-Reinforced Concrete Diaphragms 9 2. 0 ksi fy = 60 ksi Design Thickness The IDOT standard slab thickness is 8 in. , including the ½ inch integral wearing surface, is assumed. 4) This chapter provides an overview of the basic assumptions, design preconditions, and some of the design parameters that affect composite beam design. 6. The deck carries a 100mm depth of surfacing, together with a nominal HA live load udl of 17. The slab will be entered later using two different methods, as a cross section and as a schedule based member alternative. in. In the two form deck worksheets, the form deck is assumed to be "inverted" and not to contribute to the flexural moment capacity of the slab. A typical example of the decking layout for a composite floor is shown in. 6-82 Cored Slab Typical Section (Example) 6-83 Cored Slab Span Layout (Example) 6-84 Cored Slab with Barrier Rail Details (Example) 6-85 Part Plan End of Cored Slab Unit 6-86 Grouted Recess at End of Post-Tensioned Strand for Cored Slabs 6-86a Grouted Recess at End of Double Post Tensioned Strands for Cored Slabs But we have seen designers balance more than 400% DL in some spans, which almost always leads to sudden failure of the slab. The concrete deck is 9 inches thick and the abutments are not skewed. (3) Bending and shear of the composite section at the ultimate limit state Check the ultimate moment of resistance of the composite section and compare it with the ultimate design moment. 17 Three nu- merical design examples are included to demonstrate the proposed design. Prior examples were composite decks and simple spans. Displacement Program 24 3. The bridge  This idea should also apply to the design of reinforced concrete slabs. Bottom mat reinforcement is No. 27 sq. Use of these manuals is highly recommended. 0 in 4), S tr = 193. 2-B-1 Preliminary Plan Example - Bridge Replacement- Primary Bridge (pdf 196 . deck erector will request this change. 4 in 3). Concrete Volumes and Slab Design Data 81 Concrete Slabs on Form Deck 82 - 83 UFS, UF1X, UFX, UF2X Maximum Span and Cantilever Tables 84 Slab and Reinforcement Data 85 Fire Resistance Ratings 86 SDI Long Form Specifications 87 - 91 Introduction 92 Diaphragm Design Example 93 Typical Fastener Layout 94 1. ” 9 Giving due consideration to all el-ements of construction, deck with joists at 5 ft. 000 0. 083 in 4. 5 in Concrete Type = NWC Normal Weight, Sand-Lightweight, All-Lightweight 1 28-day Concrete Strength, f'c = 4. Finite element design packages can be incredibly useful in the design of PT structures. , we can  deck, and proposes a simple design method for the link slab. In bridge design codes, the dynamic impact factor (IM) is a well-accepted measure of the impact effect dynamic behavior of the deck slabs of concrete highway. Because these simple slab bridges are sometimes designed with the expecta-tion that the curbs will supply part of the bending resistance, the curbs may be cast integrally with the deck slab. 0 m. The geometry of the BubbleDeck slab is identified by ellipsoids of a certain size, placed typical result in a change in design to longer spans and/or reduced deck thickness. Structure magazine a practical design for thin composite steel structure magazine a practical design for thin composite steel steelconstruction info l1003. The bridge deck will have no footpaths. deck is simple. span composite beams at 10 ft. C. Composite slabs incorporating BONDEK® can be designed in a number of ways: • Using the design tables given in this manual. 275 B) Bending strength Bubble Deck when compared to a solid deck, both practically and theoretically. One half of the concrete deck slab was reinforced with carbon and glass FRP bars, and the other half with conventional steel bars. (0. - 6 in. Beam Length 2-15 . 225 0. 5" occurring anywhere in the span. 7 h d⋅()− c = + βS =1. 8 ksi 28-day strength, f¢ c = 6 ksi Deck slab: 4. For the extreme limit state, the applied loads for deck overhang design are horizontal and vertical vehicular collision forces. Whenever the deflection on falsework beams exceeds 1/4”, adjustments should be made at the quarter points. 60 (non-segmental brg. 6). The deck span is 7. The standard galvanized coating is G60 (0. Following the same design procedure as in Example 1, one can find: Composite Girder, I tr = 1849. 5" B, F, 3" N 95 - 121 Example- Composite Design Design composite concrete slab on steel deck floor for 125 psf live load. deep This report provides guidance on the design of steel-concrete composite bridges, which consist of steel girders and reinforced concrete slabs on top. DoveTail Composite Deck-Slab Strength - Create your custom composite deck-slab strength and maximum unshored span tables for DoveTail FORMLOK profiles. ) to 12 ga. 1084 in. 1 Design Requirements All new structures and deck replacements are to be designed using over galvanized steel deck can also be specified to obtain the benefit of the corrosion protection of galvanized steel deck with a factory applied prime paint substrate. Design Calculations of Cookshire Bridge Deck Slab. “For example, with a standard profile, you can’t span 20 ft. 2 of the AASHTO LRFD Bridge Design Specification. 5 metres wide footway on either side for a National Highway. pdf), LOAD AND BENDING MOMENT CALCULATIONS. Spreadsheet Example deck slab design spreadsheet. Form decks are typically multi- span with negative bending and interaction over the supports. Section 1. 23. In such cases, contact Westform for additional design information. This paper reviews the current design practices of transverse slab reinforcement design in concrete bridge deck, which consist of concrete deck slab on wide concrete T-beams. Nimmer Loris Collavino William C with the AASHTO LRFD Bridge Design Specifications, Third Edition, Customary US Units and through the 2005 Interims. Example sentences with "deck slab", translation memory. 1 · Tata Steel. 1. The spacing of the girders depends on the number of girders to be provided in the deck which again is related to the cost of materials, shuttering, staging etc. Design a typical floor beam with 3 in. for all girder spacings less than or equal to 9 ft. Thanks to the presence of the Internet in our lives, we can find a lot of ideas for deck design with the help of such … The design principles of a solid slab bridge deck may be illustrated by the following illustrative example: Illustrative Example 1 : Design a solid slab bridge superstructure having a clear span of 9. 00487)(29,000 ksi) = 141 ksi > 60 ksi, use f s ’ = 60 ksi C s = A s ’ f s ’ = (0. Test Facility 17 3. Design a reinforced simply supported deck slab concrete bridge for a state highway to suit the following data: Carriage Way (Clear) : 7500 mm Grade of concrete : M25 Grade of Steel : Fe415 Width of the footpath: 1000 mm on either side. It was a one-span composite girder bridge, with a span of 12. Composite and Non-Composite Design Guide • V1. ) Ratio of specified min. 581 Smax 700 kip in ⋅γe βS⋅fS = −2d⋅ c Smax =12. Metal Deck: What Design Engineers Should Know Two experts share their metal deck know-how with these 15 tips. RC2 - RC Slab Example Last Modified: 9/14/2018 6 Add the following reinforcement steel in the same manner. Reinforcing bars from the concrete deck shall extend into the link slab to a sufficient embedment length to establish a proper connection between the link slab and the deck. Overview ♦ Introduction 2. Composite deck has embossments in the vertical ribs that bond with the concrete slab to develop a composite floor system. These forces are checked at the inside face of the barrier, the design section for the overhang and the design section for the first bay, as described in 17. 00 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 1-1/2 inch deep G-60 galvanized composite steel deck, design thickness 0. 14. on center is not always the most economical design choice. 51 ksi AASHTO 5. (less than 25 ft) may be built as simple slab decks. The steel deck will be used on 8’-6” 3-continuous spans. 67 (A615 steel) Concrete density modification factor λ = 1. apart. Oct 18, 2017 Design and Application of the Proposed Deck Slab. May 2, 2019 Shear design is not required for deck slabs (C4. The next step is to decide which deck design method will be used. 1 - Obtain Design Criteria. (b) At the serviceability limit state Check the deflection of the steel beam. Deck Diaphragm Shear & Stiffness - Calculate your unfilled deck diaphragm and stiffness for your exact condition based on the Steel Deck Institute “Diaphragm Design Manual, Third Edition” (DDM03). 0 ksi Substructure: 3. The system also in- cludes shear studs installed and supplied by others, to provide a composite floor system that allows for the loads to be transferred into the steel frame. Concrete slab structure types are not recommended over streams where the normal water freeboard is less than 4feet; formwork removal requires this clearance. Slab structures with βS 1 dc 0. 1 kN-m/m The deck thickness was measured to be approximately 200mm thick, and with the link slab designed to be 152mm with 86mm of asphalt topping, this proved to be inadequate. 0358 inch (20 gage), (Type XX by The effective length for monolithic cast-in-place concrete is the clear distance between supports. The actual spacing of the bars is taken as the center to center tie spacing, since slab design considers a 1' strip of an infinitely long slab. allowable unit stress of 20,000 psi. buildings, in which we place our composite slab, exhibits a superior ductility and it is also a major concern, for example, in earthquake design, to globally distribute energy dissip a-tion, avoiding dangerous damage accumulation in critical structural members. 1R and 421. Place transverse bars closest to the bottom slab surface. Galvanized ASC Steel Deck offers steel deck products that are galvanized in accordance with ASTM A653. 0 ksi Slab Concrete Unit Weight = 0. ♦ When building next to an existing structure (such as for phased replacements), provide Design a simply supported reinforced concrete deck slab using a unit strip method. 47) 2/8 = 15. Slab on metal deck analysis and design (both composite and form deck) per SDI and ACI 318-99. Link slabs shall only be used with new decks, or existing decks that are in fair condition. In addition to general design guidance and information on detailing practices, this section contains three design examples: a three-span reinforced concrete slab superstructure, a 63 inch pretensioned I-beam, and a three-span post-tensioned concrete slab superstructure. Specific design requirements for concrete floor construction are found in ACI 360R for slabs-on-ground, ACI 223R for shrinkage-compensating concrete floors, and ACI 421. 8 Composite Deck- Slab Design. Concrete deck slabs on bridges designed in accordance with AASHTO example calculations is provided for a slab design and cantilever  This guide covers the design and construction of composite slabs and beams, and . View example in PDF format (Design Example 2) Download example as a Mathcad Workbook (Zip)  Adhesive Anchor Examples. Cast-in-Place Deck Slab: Actual Thickness, ts = 8. Commercial sector. The PCI Design Handbook1 recommends limits onspan-depthratiosforthehollowcoreslabs. results can be used for the design of composite slabs. Two common forms are considered: multi-girder and ladder deck bridges. 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. Reliance on 3D finite element software for design and drawings. 3. 10 Effective Width of the Concrete Slab 2-14 . These Structures Detailing Manual Examples are provided in PDF documents that are structured to illustrate the content that is expected to be seen on each sheet at each level of completion based on the requirements set forth in the FDOT Design Manual (FDM), Sections 121. 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 Example I-1 Composite Beam Design. Again, according to Abbata, it’s a mat- Example 1 - ELASTOMERIC LEVELING PAD (Method A) Example 2 - TYPE I BEARING (STEEL REINFORCED) (Method A) Example 3 - TYPE I BEARING (STEEL REINFORCED) (Method B) Example 4 - TYPE II BEARING (REINFORCED BEARING WITH PTFE) (Method B) Example 5 - EXPANSION DEVICE (STRIP SEAL) 0-4 INCH; Example 6 - DECK DESIGN; Example 7 - GIRDER HAUNCH AND CAMBER Design Step 2 - Example Bridge Prestressed Concrete Bridge Design Example Materials Concrete strength Prestressed girders: Initial strength at transfer, f¢ ci = 4. 3 Design of Composite Slab . A typical example of the decking layout for a composite floor is shown in Figure 1. 514 in⋅. Whats people lookup in this blog: Composite Floor Slab Design Example Vulcraft Deck Design Tools. Slab bridges are defined as structures where the deck slab also serves as the main load-carrying component. When spans exceed 35 feet, freeboard shall be increased to 5 feet above normal water. FORMLOK Composite Slab Design Example . and 3 in. There’s no strength to it. 0358 inch (20 gage), F y = 50 ksi The concrete slab itself can also be constructed as a composite member using the profiled steel decking on the soffit of the slab as shown in figure 12. CE 433, Fall 2006 Slab Design Example 5 / 6 f s ’ = e s ’ E s = (0. 16. 0 kN/m 2 Mid-span bending moment is M sd = 10. The steel deck provides the positive reinforcement for the simply supported composite slab  Haunched Steel Deck Girder Bridge, John Day Hwy. and design of Deck Slab bridge by STAAD Pro using IRC Loading. LRFD Deck Slab Design Procedure, Equations, and Outline Design Stresses f'c = 4. Design Depth = 240mm - 15mm = 225mm 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. 2—Slabs-on-ground A slab uses profiled steel decking in place of a steel section, and force is transferred via embossments and certain aspects of the deck geometry (rather than discrete shear studs). T (in) S (ft) Concrete slab structure types are not recommended over streams where the normal water freeboard is less than 4feet; formwork removal requires this clearance. 10 Example Slab Cross Section for Cracking Check. -15- 48mm, or pour the entire 200mm deep link slab with regular concrete and install a waterproofing membrane on top of the concrete wearing surface. Lowest composite deck-slab weight per square foot for. 5 m. EUROCODE 2: BACKGROUND & APPLICATIONS DESIGN OF CONCRETE BUILDINGS Worked examples Report EUR 26566 EN Deck Slab Design Spreadsheet Increasing the total amount of WBS components increase the management time essential to keep up the schedule and update plans. 75 feet. 0m centre to centre of bearings. The design of the reinforced concrete deck slab was made according to sections 8 and 16 of the new Canadian Highway Bridge Design Code. As the curvature of slab changes, the slope difference between bridge deck and the slab is inevitable. Common  Feb 20, 2008 EN 1994 - Eurocode 4: Design of composite steel and concrete structures Examples of composite construction in UK. Fatigue and Fracture design . sustain the weight of the fresh concrete plus a construction live load of 20 pounds per square foot without exceeding an. 5 It is not intended to maximize the load effects by applying the maximum load factors to some bays of the deck and the minimum load factors to others. AND DESIGN GUIDE. ) Cell spacing (in. 0m in length. Design Step 2. the weight of concrete and FORMLOK deck that the composite slab can. /ft. 1 Location Where Effective Slab Width Is Checked 2-14 . 5 Effective Slab Width and Transformed 5. 500 1. The integral wearing surface is considered in the weight calculations. WisDOT Bridge Manual Chapter 17 – Superstructure - General January 2019 17-3 17. View example in PDF format  Slab on metal deck analysis and design (both composite and form deck) per SDI and ACI 318-99. 8. Key Words: Keywords: Steel profile deck, Shear  Worked Example 10. 3 Effect of Diagonal Beams on Effective Slab Width 2-19 . The user has the option to include or not include the form deck shear capacity in the total beam shear capacity of the slab. Becker Computerized Structural Design, S. The requirements for shoring are based on the ability of the decking to. 1 Is Deck Width Constant? yes (yes,no) Precast Beams: A - NWC Slab & Girder, φ = 0. 6 DESIGN EXAMPLE ON SLABS Sn1BOLS USED Full area of steel deck (in. 90, λ = 1. The lines of shear connectors indicate the positions of the composite beams. Notes Author Staff - BridgeSight Software Sponsor BridgeSight Software Although most commonly used on steel framed buildings, composite slabs may also be supported off masonry or concrete components. Longitudinal reinforcement in the bottom of the deck slab can be. For this example with a centerline-to-centerline web spacing of 7. Jun 27, 2017 Design Step 2. Nowadays  Keywords: Steel structure, Deck slab, Design system, Education. •. The results in the table below shows that for the same deck thickness, the bending strength is same for Bubble Deck and for a solid deck and that the stiffness of the Design Criteria. Steel-Deck Diaphragms 12 2. On our website you will find a lot of ideas for interior design, and in this particular article we will talk about design of deck slab bridge as per irc. This problem is consistent with the requirements of the 2006 International Building Code for garages storing Slab on metal deck analysis and design (both composite and form deck) per SDI and ACI 318-99. bridge deck slab design procedure - Download as Powerpoint Presentation (. In addition, a fully worked design of a bridge deck panel meeting AASHTO Specifications is provided in YSLEI MSfE; Example: Design a slab and girder bridge with 7. Also, for concentrated loads, the effective slab strip widths for both moment and beam shear are determined. Composite Deck Slab. For P1 and P2, the calculation results for shear cracking loads are close to the  Floor Deck Design Considerations. The free RoofDek Analysis software allows Structural Engineers and specifiers to conduct full deck analysis to Eurocode 3 and 9. Roof Deck Analysis According to Eurocode 3 and 9. DESIGN SCHEME. 9 • 11 Two such examples are shown in Fig. May 31, 2018 For slab design, where the approximate strip method is used, the force effects shall be determined T, = tensile force per unit of deck length at base of curb (k/ft ) . "DECKSLAB" --- SLAB ON METAL DECK ANALYSIS / DESIGN. 500 The deck slab has been analysed transversely as a continuous slab (supported on Longitudinal girders) with cantilever overhang on either side by taking unit width of deck along the span. The more the number of the design solutions decreases, the longer the value of H deck becomes. Design depth is the gross depth of the slab, less any depth that is expected to be lost as a result of grinding, grooving, or wear. Test Parameters 28 3. 4 Summary of a Design Example with Soft Soil . For most projects, conventional materials should be specified. Abstract -The aim of this project is to design the composite slab which is connected using shear connectors. Loading – Single lane of Class 70-R or two lanes of Class A: DESIGN OF COMPOSITE DECK SLAB Kamal B 1, AlameluG 2, Abinaya D 3 1 Assistant Professor, Department of Civil Engineering, Sri Ramakrishna Engineering College, Coimbatore 22. ppt / . 5 metres with 1. 1 Design Codes The design code can be set by the user when the model is started and changed at any time. Saccoman, Chairperson James Beerbower Ernest Markle Kevin Boyle James Markle Jeffrey Butler Milo J. 2R for suspended floors. 5-388 Appendix 5-B13 Strut-and-Tie Model Design Example for Hammerhead Pier . 7. 00 inches. 4 Profiled Steel Sheeting as Permanent Formwork (Composite stage) Verification is required for the floor slab after composite REVIEW OF PREVIOUS RESEARCH AND DESIGN CRITERIA 9 2. We do not need to define any beam shapes since we are using a reinforced concrete slab. EXAMPLE 6 - DECK DESIGN, INCLUDING COLLISION ON A TYPE 7 & TYPE 10M BARRIER 6 2019 Where: Flexural cracking variability factor γ1 = 1. The Medford Viaduct Typical Slab Bridge Design, Oregon Examples, 1929. 751. 8 Modulus of rupture 0. 1 Standard Deck Slab Design The NMDOT standard deck slab detail and slab design tables are shown below. lV . Job Title: COMPOSITE SLAB Worked Example - 1 Made by SSSR Date 14-05-00 Structural Steel Design Project Calculation Sheet Checked by PU Date 08-08-00 4. The loaded back axle is negligible in this example. Reinforced Slab Bridges used For short spans, a solid reinforced concrete slab, generally cast in-situ rather than precast, is the simplest design to about 25m span, such voided slabs are more economical than prestressed slabs. ) Depth of steel deck (in. 13 ANALYSIS AND DESIGN OF DECK SLAB 0. Apr 29, 2016 BD-628M. Prepared for the PCI Hollow Core Slab Producers Committee John E. 0 ksi Railings: 3. deck slab design example

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