Six different detailed bridge design in word documents of reinforced concrete bridges. Each bridge is formed by steel girders acting compositely with a reinforced concrete deck slab. Concrete bridge lrfd specifications parsons brinckerhoff page 1 1. Manual for design and detailing of reinforced concrete to. The following design method can be used for normal weight concrete with specified compressive strengths up to 15. Comprehensive design example for prestressed concrete psc. The first reinforced concrete design manual formerly titled aci design handbook was developed in accordance with the design provisions of 1963 aci 318 building code by aci committee 340, design. Prestressed concrete course project report analysis and design of a prestressed concrete bridge. Notation of the nds as the source of design requirements in this chapter reflects references in aashto that specify the nds as the most current source of timber design information for bridges aashto. Leap bridge concrete is design and analysis software for concrete bridges of all types. 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. Posttensioned concrete is widely used in bridges, shell structures, water tanks, and folded plates.
The examples cover the principal steps in the verification of the. Site location is assumed to be near socorro, new mexico, with the bridge crossing a waterway on a normal. These design codes, considered to be the most advanced in the world, will lead to a common understanding of the design principles for concrete structures for owners, operators and users, design engineers, contractors and the manufacturers of concrete products. These are for ultimate strength in flexure, shear and torsion and. Structures design office lrfd design examples files pdfs. Threespan continuous straight composite i girder load and resistance factor design third edition customary u. The example illustrates many aspects of the design procedures described in the earlier sections and should prove a valuable insight into the application of bs 5400 to the design of a steel railway bridge. This publication presents worked examples of the detailed design of two composite highway bridges. The design specifications used in these examples is the aashto lrfd bridge design specifications.
This design example is for end bearing piles that are driven through cohesive soil and tipped out in rock. The first example is of multigirder form, the second is of ladderdeck form. Wisdot bridge manual chapter 19 prestressed concrete january 2020 194 19. View example in pdf format design example 2 download example as a mathcad workbook zip adhesive anchor examples. If you continue to use the site without changing your cookie settings, we assume you are fine with our cookies and the way we use them. Introduction this example illustrates new mexico department of transportation nmdot design procedures for a threespan prestressed concrete girder bridge. Task order dtfh6102t63032 41 design step 4 deck slab design design step 4. Footings example 1 design of a square spread footing of a. This design example presents the procedures to calculate pile. We use cookies to provide you with the best possible user experience.
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. Pgsuper uses a stateoftheart iterative design algorithm and other iterative computational procedures. Concrete bridge drawing bridge engineering drawing. Comprehensive design example for prestressed concrete. Only the design of slab bridge will be used for illustration. Design examples 84 the following style is used when referring to a section of aci 318 for which a change or insertion is proposed by the provisions. Fundamentals of prestressed concrete bridge with solved example introduction. Footings example 1 design of a square spread footing of a sevenstory building design and detail a typical square spread footing of a six bay by five bay sevenstory building, founded on stiff soil, supporting a 24 in. Wisdot bridge manual chapter 19 prestressed concrete. A design example followed by a load rating analysis illustrates the engineering computations performed by pgsuper. The key design criteria and checks required by codes are the same regardless of the form of construction. Design example 1 demonstrates design of the superstructure and bearings for a single span castinplace posttensioned concrete box girder bridge using lrfd.
Notes author staff bridgesight software sponsor bridgesight software. 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. Aashto lrfd bridge design specifications, fifth edition with 2011 interim revisions. Impact of lrfd specifications on design of texas bridges. Prestressed concrete psc girder superstructure bridge design example us units pdf version 1. Appendix a examples colorado department of transportation.
In prestressed concrete, a prestress force is applied to a concrete member and this induces an axial compression that counteracts all, or part of, the tensile stresses set up in the member by applied loading. The roughened top surface of the panel improves bond with castinplace concrete. Pdf design step 4 design of deck prestressed concrete. These examples of bridge design calculations are based on bs 5400 and the design manual for roads and bridges. Designs include attractive singlepiece arches, functional twopiece arches, conventionally reinforced flat bridges. Reinforced concrete bridges theory and design of bridges. Hueste, mohammed safi uddin adil, mohsin adnan, and peter b. We receive notification from paypal when your transaction is complete, but please allow one working day for processing your purchase. Critical dimensions and loads are repeated here for ease of reference. Concrete bridge design, analysis software leap bridge. Please direct any questions on the content of this document to the bridge design section director, bridge division, texas department of transportation. Reinforced concrete slab design using the empirical method. Introduction this example is part of a series of design examples sponsored by the federal highway administration.
View example in pdf format design example 1 download example as a mathcad workbook zip castinplace flat slab bridge design. Manual for design and detailing of reinforced concrete to the september 20 code of practice for structural use of concrete 20 2. Bridge design guide txdot january 2020 feedback for txdot policy on designing bridges, please refer to the txdot bridge design manual lrfd. Fundamentals of posttensioned concrete design for buildings. Two design examples of a simply supported slab bridge and a twospan box girder bridge are also presented. Comprehensive design example for prestressed concrete psc girder superstructure bridge with commentary. Foreword the reinforced concrete design manual sp1711 is intended to provide guidance and assistance to professionals engaged in the design of castinplace reinforced concrete structures. Siteblauvelt engineers cranberry township, pa pittsburgh, pa b s d i design. Fundamentals of posttensioned concrete design for buildings part one. Whether you want to replace a deficient structure, span a roadway or water, or create a tunnel, precast concrete bridge components provide the perfect solution.
Concrete repair guide for concrete bridge components s urface p reparation d amaged c oncrete r emoval. In this study, the construction sequence is first studied and understood. However, the primary focus of this course covers applications of post. Example on design of slab bridge design data and specifications superstructure consists of 10m slab, 36m box girder and 10m tgirder all simply supported. Bss090119991 abstract this design example illustrates the empirical design method for composite concrete bridge decks specified in article 9. Pci bridge design manual 3rd edition, first release. Finally, appendix b presents a worked example of design calculations for a typical half through twotrack railway bridge. As with most design and construction decisions, knowledge of the local marketplace is important in determining the optimal configuration for a bridge. Chapter 18 concrete slab structures january 2019 184 18. Chapter 5 concrete structures page 52 wsdot bridge design manual m 2350. State of wisconsin, department of transportation standard specifications for highway.
Specified concrete strengths should be rounded to the next highest 100 psi. Fundamentals of prestressed concrete bridge with solved. In addition to general design guidance and information on detailing practices, this section contains three design examples. Mechanical removal of damaged concrete with a chipping hammer. Design of reinforced concrete bridges ice manual of. The bottom of the footing is ft below finished grade. Strength of concrete pacific nw aggregates have consistently resulted in concrete strengths, which may exceed 10,000 psi in 28 days.
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