It is not intended to replace the aashto lrfd bridge design specifications or any other design guide or regulatory code. September 2018 lrfd bridge design 91 reinforced concrete decks on girders are the predominant type of deck used on highway bridges in minnesota. Pretensioned prestressed concrete bridge beams and bridge. Pdf design of a reinforced concrete deckgirder bridge to. Load and resistance factor design lrfd girder line analyses on a selection of wisconsin bridges with varying skew angles, secondary elements, bridge geometry and deck concrete composite action. Pdf frp deck and steel girder bridge systems analysis and.
Sep 09, 2018 the price depends on the selected materials, as well as on the complexity of design of deck slab bridge pdf. Reinforced concrete deck girder bridge rcdg bridge 2. Pci has developed preliminary design charts in accordance with the aashto. Where higher strengths would eliminate a line of girders, a maximum of 10. Loading single lane of class 70r or two lanes of class a. Designforahighwaybridge tableofcontents chapter page i. Bridge design to eurocodes worked examples worked examples presented at the workshop bridge design to eurocodes, vienna, 46 october 2010 support to the implementation, harmonization and further development of the eurocodes y. The weight of the beam pushes straight down on the piers. Design step 2 example bridge prestressed concrete bridge design example 8 reinforced concrete deck 110 18 14 5 spa at 9 8 9 55 4 12 total width 52 roadway width figure 22 bridge crosssection 2. Before discussing bridge design based on geometry, lets define a bridge girder correctly. Deck bulbtees 164k, pdf double tee bridge beams 157k, pdf next bridge beams 104k, pdf pci zone 6 curved spliced girders 1. Let the crosssection of the deck be assumed as shown in fig. May 12, 2015 this video contains transverse and longitudinal analysis of a single cell box girder bridge to determine design moment and shear for manual calculation of flexural and shear reinforcement of the. Comparative study of rcc t girder bridge design using different codes.
The example illustrates the design of a typical threespan continuous straight steel igirder bridge with spans of 140. The intent of the cdot bdm is to complement current american association of state highway and transportation officials aashto load and resistance factor design lrfd specifications with current interim edition and to provide interpretations applicable to the design of colorado projects. Policy on lrfd design of specific bridge superstructure components. It is a companion to a publication giving general guidance on composite highway bridge design. Design and performance of highly skewed deck girder bridges.
The basic application of the aashto lrfd bridge design specifications to the design of straight steel isection flexural members is illustrated through this design example. The continuous composite deck is made up of two steel girders with i. Structural design guidelines for concrete bridge decks. Pdf design and construction of a reinforcement free concrete. Finite element analysis was also used to study longterm displacements and stresses created by restraint against deformations. Consists of a horizontal beam supported at each end by piers. Pdf comparative study of rcc t girder bridge design. For bridge deck design load determination, the design code has a specified truck to be. A girder bridge is a bridge that uses girders as the means of supporting its deck. Design of steel girders with diagram your article library. Design of a reinforcedconcrete deckgirder highway bridge. It gives two worked examples, one for a multi girder bridge and one for a ladder deck bridge. Worked examples presented at the workshop bridge design to eurocodes.
Policy on lrfd design of specific bridge substructure components. Elremaily construction technology laboratories, inc. Feb 02, 2017 there are three major forms of construction. This publication is the second of two sci bridge design guides that reflect the rules in the eurocodes. Prestressed concrete girders the nominal 28day concrete compressive strength. Design of a reinforced concrete deckgirder bridge to. Concrete bridges semiintegral design is used for prestressed concrete girder bridges under 450 feet long and for posttensioned spliced concrete girder and castinplace post. This document was modified from the original design manual for inclusion of lrfd material and general content by georgia.
Bc box girder, composite design bg box girder bm beam bn bin cb box culvert cs concrete slab ct cantilever dg deck t girder or orthotopic dt deck truss er earth fa filled spandrel arch fb rigid frame box fc girder floorbeam, composite design fg girder floorbeam system gb gabion gv gravity gc rigid frame. Solid slab deck infill deck, beam and slab deck, voided bridge deck. Solid slab is ideal for short spans with shallow construction depths. The following design steps are included in this example. Bridge design guide the texas department of transportation ftp. Petersburg 1 eurussia regulatory dialogue construction sector subgroup bridge deck modelling and design process for bridges application to a composite twin girder bridge according to eurocode 4 laurence davaine phd, bridge structural engineer, ingerop, paris, france.
Worked examples on bridge design with eurocodes, 1718 april 20, st. Design of a single cell rcc box girder bridge youtube. Design of prestressed concrete igirder bridge superstructure. Bc box girder, composite design bg box girder bm beam. Wisconsin department of transportation bridge manual standard. Scour requirements for bridges, walls and culverts pdf, 168kb 072017. Guidelines for design and construction of decked precast, prestressed concrete girder bridges final report prepared for national cooperative highway research program transportation research board national research council r. This video contains transverse and longitudinal analysis of a single cell box girder bridge to determine design moment and shear for manual calculation of flexural and shear reinforcement of. Bridge design engineer, bridge construction office, and materials lab. Request pdf design of prestressed concrete girder bridge during project work considerable efforts have been endured upon analysis and design of prestressed concrete girder bridge.
Features for creating design of deck slab bridge pdf. Kansas department of transportation bridge construction manual version 1011 kdot bridge section 1. As with most design and construction decisions, knowledge of the local marketplace is important in determining the optimal configuration for a bridge. Office policy for concrete and steel bridge design is as follows. Cs concrete slab ct cantilever dg deck t girder or orthotopic dt deck truss er earth fa filled spandrel arch fb rigid frame box fc girder. As stated in the policy manual, txdot bridge design manual lrfd, limit concrete strength. Design guidelines for bridge widenings, steelreinforced elastomeric bearings fo r pretensioned concrete beams, stru tandtie method, and culverts. The deck is the structural element that transfers vehicle and pedestrian loads to the girders. Deck design follows the nmdot standard deck slab detail in chapter 4 of the nmdot bridge procedures and design guide, hereinafter referred to as design guide. Design of prestressed concrete girder bridge request pdf. Bridge design guide 32 txdot january 2020 section 1 general recommendations prestressed concrete beam and girder design txdots policy is held firmly to a 6. Bridge design minimum requirements pdf, 43kb 062017. It provides advice, for those already acquainted with the design of composite ibeam bridges, on the particular aspects of box girders bridge design and the use of bs 5400.
Thesis pdf available april 20 with 10,563 reads how we measure reads. The design charts and graphs provided in this chapter were developed to satisfy flexure at the strength i and service iii limit states according to the aashto. The two most common types of modern steel girder bridge are plate and box. Performing organization name and address hdr engineering, inc. Pdf design of a reinforced concrete deckgirder bridge. Frp deck and steel girder bridge systems analysis and design. Bridge deck modelling and design process for bridges. Design step 4 design of deck prestressed concrete bridge design example task order dtfh6102t63032 45 future wearing surface. For example, steel plates are usually hot rolled, and cast steel may be used. Dec 23, 2017 reinforced concrete deck girder bridge 1. Pdf frp deck and steel girder bridge systems analysis. It is analyzed as a continuous beam with the girders acting as supports. Girder spacing feet itd slab depth inches min overhang to center of girder wcontinuous barrier feet min overhang to center of girder wo continuous barrier feet 5. After you have summed all the expenses, add 10% from above, since the rule is that the final cost of the project is always higher than the original one.
The intent is to provide guidance as well as an interpretation of aashto lrfd bridge design specifications specific to new mexico bridge design. Lrfd bridge design manual bdm colorado department of. Reinforced concrete deck girder bridge linkedin slideshare. Pci bridge design manual 3rd edition, first release. Many bridge inspection manuals define a girder as a longitudinal bridge element that supports the deck slab carrying external loads and transmits the load to a substructure element such as bearings or abutmentpier cap or cross beam. The deck may consist of 3 girders spaced at 2, 45 m. Design of a reinforced concrete deckgirder bridge to aashto. The superstructure design includes the following elements. Lrfd design manual georgia department of transportation. Bdesign variables and constant design parameters for a particular girder span and bridge width, a large number of parameters control the design of the bridge such as girder spacing, cross sectional dimensions of girder, deck slab thickness, number of strands per ten. Design of reinforced concrete bridges department of civil. Pdf steelconcrete composite bridge design guide researchgate.