To take into account the troughs of the profiled steel sheeting, the weight of the slab is taken as. Coffer and trough slabs are very thick slabs, increasing the total building height. Structural details of slab culverts 3 for spans less than 3. After erection, the deckslab panels were joined through longitudinal posttensioning.
Design manual for rcc spillways and overtopping protection prepared by urs greiner woodward clyde por tland cement association. Practical examples of open trough and reentrant profiled steel. As you read them also examine the details on figure 4. Many of those systems involve use of a composite floor slab concrete acting compositely with profiled steel. List of figures for hec 21design of bridge deck drainage back to table of contents figure 1. Provide six 6 printed and bound half size copies and two 2 cdpdf. Sci p300 composite slabs and beams using steel decking best. Flat slab analysis, design and detailing pdf civil.
Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. The capacity of the composite slab in fire may be calculated using either mesh and deck method mesh only and no trough bar reinforcement or bar method. Second, the latest version combines in situ concrete and a reinforcedconcrete trough slab that are produced in one working step. Area of outer steel per m effective through the perimeter.
Step 2 design forces draw panel of slab and indicate maximum design moments, shears and in. The ratio of the total costs was found to be within the range 1. Limit state method is used for analysis and design. The best beer trough picnic table plans free download pdf and video. Plan view section trough slab and column slab thickness h. The design of composite slabs and beams is discussed in detail in relation to the eurocodes and bs 5950. Design of reinforced concrete structures ii twoway slabs 1 1. Chapter track structure design table of contents 4. The spacing of wash water troughs is kept between 1.
Rubber tire trough design package be sure to read the read me first document for instructions on downloading the zip file. Oneway and twoway slabs oneway slabs transfer the imposed. Ribbed slabs oneway joists introducing voids to the soffit of a slab reduces dead weight and increases the efficiency of the concrete section. Analysis of two way ribbed and waffle slabs with hidden beams. Construction of slabs on ground design considerations aci.
Threespan continuous straight igirder bridge design example. Reference 5 focused on analysis of twoway ribbed slabs with. The choice of the particular deck type to use can depend on several factors, which may include the specific application. Include master plan, plats, easements, design calculations, process flow diagrams, drawings, and specifications. Flat plate concrete floor system does not use beams between columns or. Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. The general provisions for construction and design procedure are given in cop 20. The manual and advisory safety code of practice for concrete pumping67. Slab design reading assignment chapter 9 of text and, chapter of aci31802 introduction aci318 code provides two design procedures for slab systems. A column can suddenly punch through the slab without nearly any warning sign that. Master of science and hereby certify that, in their opinion, it is worthy of acceptance. Detailed analysis and design as per indian standards.
This session is not intended to teach concrete design, but more of an awareness of why things are the way they are. Institution of civil engineers is an important reference and design manual for. Design and layout of ballastless track systems using unbound base course layers. Beer trough picnic table plans slateslabforfireplace. The slab has to carry a distributed permanent action of 1. A slightly deeper section is required but these stiffer floors facilitate longer spans and provision of holes. Design of reinforced concrete structures ii twoway slabs. 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. N c,f 0,85 f cd b h c reduced plastic moment resistance of the sheeting. All warranties and representations of any kind with regard to said documents are disclaimed, including the implied warranties of merchantability and fitness for a particular use. Aci318 code provides two design procedures for slab systems. A civil engineer must know all the aspects regarding the flat floor system.
Trough slabs are often used in lieu of flat slabs with down stand beams. Learn the art of woodworking using these stepbystep woodworking plans. Throughdeck welding of headed stud shear connectors. Twoway flat plate concrete floor system analysis and design the concrete floor slab system shown below is for an intermediate floor to be designed considering partition weight 20 psf, and unfactored live load 40 psf. Direct design method ddm for slab systems with or without beams loaded only. In order to be able to investigate composite slabs with open trough profile steel. A term used in a broad manner to refer to throughpenetration firestop systems that have been tested and meet test criteria american society testing materials astm e 814 or underwriters laboratories, inc. Reinforced concrete design 1 design of slab examples and. Key words steel bridge, deck design, concrete deck, precast concrete deck, wood deck, metal grid deck, orthotropic deck 18.
Hence, compressive forcencf in concrete is equal to steel yield force npa. Vertical wall loads structural slab or pushoff ramp bearing on top of wall lateral manure loads. At least two bottom bars should pass through internal columns in each. Llc requires design by a registered professional structural engineer. Oneway simply supported slab analysis and design of the slab similar to design of simply supported beam as indicate in the previous chapter. Flat slab system is an important division of concrete floor system. Ul standard 1479 by an independent recognized laboratory. This guide covers the design and construction of composite slabs and beams, and. The project aims at analysis and design of pyramidal slab as per standard provisions. This catalogue does not contain any design detail but lists and depicts the items available under this product range. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place.
Designing for shear in slabs including punching shear. Spacing of troughs width of trough number of trough. Characteristics of flows uniform flow in canal and aqueduct trough dydx 0, dvdx 0, dqdx 0 where y is a depth, v is the velocity of flow and q is the discharge. Examples of open trough profiled steel sheets used for composite slabs. Comflor manual composite floor decking design and technical. These design elements must be enlisted and added in the contract documents by the designer in charge before asking for a bidding. The responsibility for design is the responsibility of the customer. Construction of slab on ground design elements the construction of slab on ground requires certain basic design elements.
Concrete c30 steel b500s flexural and transverse reinforcement f ck 30 mpa f yd 435 mpa. Accordingly, main reinforcement is required in the two directions. Pdf assessment of concrete doubletrough bridges researchgate. These materials are originally located at different websites. For 1m slab width, moment, shear force, oneway continuous slab for continuous slab, moment and shear force can be obtained from table 3. Get 50 free woodworking plans get beer trough picnic table plans. The washington state department of transportation wsdot makes these documents available on an as is basis. To resist the loads and provide sufficient stiffness at the construction stage, the. Moments for design may be taken from table 3 for slabs simply supported on four sides. In areas where the wall extension is between 2 feet and 4 feet in height, the vertical reinforcing steel shall be the same size at one half the spacing as that shown on the circular.
Complete materials list available, easy to follow plans. Formscaffs trough system is used to produce a one way spanning concrete slab with a multiple inverted gutter shaped soffit finish. Tensioning building structures march 12, 2020 2020 educode las vegas. Calculate oneway slab moments in footpounds as it were fully supported at every ridge and valley. Design steel beam verification of bending resistance r9 to r10 7 shear resistance r11 to 12 8 serviceability limit state verification r12 9 check bearing stress within concrete padstone under the steel beam r 10 check bearing stress under the concrete padstone r14 11 replacement roof slab construction sequence r15.
Pdf the behaviour of reinforced concrete doubletrough bridges has been assessed regarding the stress distribution in. Trough slabs or single span waffled slabs are formed when glass fibre trough units are placed on top of the kwikstrip system. C 5 is the slope correction coefficient co is the consolidation correction coefficient as an example. If the sheet is not provided, the designer shall contact.
Standards and design guidelines for wastewater treatment. The bottom of the trough is kept at least 5cm above the top level of sand. Bridge approach slab analysis and design incorporating elastic soil support presented by. The project also consists of cross check of manual results with the. The estimated settlement sheet in the package is important for design of camber and use of bell joints. Extend horizontally from center line column at least 16 center line span. This section establishes the practices, procedures and guidelines for the design of bridge deck.
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