This document was modified from the original design manual for inclusion of lrfd material and general content by georgia. Pdf design of a reinforced concrete deckgirder bridge. Structural design guidelines for concrete bridge decks. The two most common types of modern steel girder bridge are plate and box. 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 publication is the second of two sci bridge design guides that reflect the rules in the eurocodes.
As with most design and construction decisions, knowledge of the local marketplace is important in determining the optimal configuration for a bridge. Let the crosssection of the deck be assumed as shown in fig. Performing organization name and address hdr engineering, inc. 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. As stated in the policy manual, txdot bridge design manual lrfd, limit concrete strength. 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.
Bridge deck protection system and future overlay requirements pdf, 169kb 052017. 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. Policy on lrfd design of specific bridge superstructure components. However, it must be noted that the report is not a complete design example and that the. 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. 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. Policy on lrfd design of specific bridge substructure components. Lrfd bridge design manual bdm colorado department of. Design of a reinforced concrete deckgirder bridge to. A girder bridge is a bridge that uses girders as the means of supporting its deck. It is a companion to a publication giving general guidance on composite highway bridge design. Design and performance of highly skewed deck girder bridges. Kansas department of transportation bridge construction manual version 1011 kdot bridge section 1.
Reinforced concrete deck girder bridge linkedin slideshare. Worked examples presented at the workshop bridge design to eurocodes. Feb 02, 2017 there are three major forms of construction. It is not intended to replace the aashto lrfd bridge design specifications or any other design guide or regulatory code.
The deck is the structural element that transfers vehicle and pedestrian loads to the girders. It gives two worked examples, one for a multi girder bridge and one for a ladder deck bridge. The deck may consist of 3 girders spaced at 2, 45 m. The example illustrates the design of a typical threespan continuous straight steel igirder bridge with spans of 140. Deck bulbtees 164k, pdf double tee bridge beams 157k, pdf next bridge beams 104k, pdf pci zone 6 curved spliced girders 1. It is analyzed as a continuous beam with the girders acting as supports. Features for creating design of deck slab bridge pdf. Solid slab is ideal for short spans with shallow construction depths. Elremaily construction technology laboratories, inc. 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. 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. 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. Design and construction of a reinforcement free concrete bridge deck on precast bulb tee girders.
Sep 09, 2018 the price depends on the selected materials, as well as on the complexity of design of deck slab bridge pdf. 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. The weight of the beam pushes straight down on the piers. The superstructure design includes the following elements. Design guidelines for bridge widenings, steelreinforced elastomeric bearings fo r pretensioned concrete beams, stru tandtie method, and culverts. The following design steps are included in this example. After reading this article you will learn about the design of steel girders with the help of diagrams.
Aashto lrfd bridge design specifications, 8th edition 2017 pdf, 168kb 082017. September 2018 lrfd bridge design 91 reinforced concrete decks on girders are the predominant type of deck used on highway bridges in minnesota. Pci has developed preliminary design charts in accordance with the aashto. 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.
Design step 4 design of deck prestressed concrete bridge design example task order dtfh6102t63032 45 future wearing surface. Wisconsin department of transportation bridge manual standard. Pdf steelconcrete composite bridge design guide researchgate. The intent is to provide guidance as well as an interpretation of aashto lrfd bridge design specifications specific to new mexico bridge design.
For bridge deck design load determination, the design code has a specified truck to be. Reinforced concrete deck girder bridge rcdg bridge 2. Pretensioned prestressed concrete bridge beams and bridge. Thesis pdf available april 20 with 10,563 reads how we measure reads. Bridge deck modelling and design process for bridges. Scour requirements for bridges, walls and culverts pdf, 168kb 072017. Before discussing bridge design based on geometry, lets define a bridge girder correctly. Office policy for concrete and steel bridge design is as follows. Bridge design minimum requirements pdf, 43kb 062017. 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. Pdf design of a reinforced concrete deckgirder bridge to.
Worked examples on bridge design with eurocodes, 1718 april 20, st. Bridge design guide the texas department of transportation ftp. Pci bridge design manual 3rd edition, first release. 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. Dec 23, 2017 reinforced concrete deck girder bridge 1. Design of a single cell rcc box girder bridge youtube. Comparative study of rcc t girder bridge design using different codes. Bc box girder, composite design bg box girder bm beam. 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. For example, steel plates are usually hot rolled, and cast steel may be used. Consists of a horizontal beam supported at each end by piers.
Girder analysis and design is performed using the computer. Finite element analysis was also used to study longterm displacements and stresses created by restraint against deformations. The original bridge and structures design manual was created through the publicprivate partnership of the georgia department of transportation and the consulting engineering companies of georgia. 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. 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. Solid slab deck infill deck, beam and slab deck, voided bridge deck. Pdf comparative study of rcc t girder bridge design. Frp deck and steel girder bridge systems analysis and design. 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. Design of a reinforcedconcrete deckgirder highway bridge. The continuous composite deck is made up of two steel girders with i. Prestressed concrete girders the nominal 28day concrete compressive strength. Pdf design and construction of a reinforcement free concrete.
Design of steel girders with diagram your article library. 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. 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 prestressed concrete girder bridge request pdf.
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. 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. Design of prestressed concrete igirder bridge superstructure. Lrfd design manual georgia department of transportation. Design of reinforced concrete bridges department of civil. Designforahighwaybridge tableofcontents chapter page i. Design of a reinforced concrete deckgirder bridge to aashto. 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. Pdf frp deck and steel girder bridge systems analysis and.
830 1117 37 1662 1039 1190 761 217 357 958 139 343 166 188 907 898 600 1080 864 1624 351 1601 1351 1148 876 510 168 229 1638 72 1491 75 705 41 39 1039 103 1120 799 855 1148 1241