Design examples are presented in appendices to this manual. The crazy levels are the real brainteasers and require outofthebox. The design and optimization of segmentally precast. May 22, 2014 concrete box girder bridge design per aashto lrfd 2007. These include standard concrete cover and bar spacing dimensions, plus a variety of specific design and detailing instructions. Design of prestressed concrete igirder bridge superstructure. Box girder bridge design american institute of steel. Advantages of steel box girder in bridges disadvantages. Such was the case with the box girder as it evolved from the principle of the initial bridge beam but with the centre hollowed out. This design is particularly suited to piecemeal crane erection. This list is intended to help identify a particular early form of lattice girder bridge which was popular with bridge engineers particularly in the united kingdom in the latter half of the 19th century. Threespan continuous straight composite i girder load and resistance factor design third edition customary u. Design guidelines for steel trapezoidal box girder systems 6.
The coronado bay bridge has the tallest box girder. Computerised design of boxgirder bridge using balanced. This paper describes the bridge type selection process, preliminary and detailed design procedures, unique structural details and construction and steel erection for four complex curved single steel box girder bridges completed within the groundside component of the terminal development project at. This paper discusses the coordinated design research program conducted under the sponsorship of the united states steel corporation, on the subject of steel box girder bridges. Concrete boxgirder bridge design per aashto lrfd 2007. Example b1 comprehensive example problem description the example problem is a three span continuous box girder bridge that is 700 ft. Posttensioned box girder bridge an analysis approach using. The network rail standard box girder type bridge that covers a span range from 21m to 39m uses trapezoidal box girders with a transverse ribbed steel deck spanning between notionally pinjointed shear plate connections. Boxgirder bridge article about boxgirder bridge by the. Balaji rao by ruthvind roy shiva reddy ahad according to the alignment as straight or skew bridges. Shape of the girder bridge according to the loadings, the road bridges and culverts as irc class a, class aa. Similar composite action may also be achieved in the negative moment region by casting a bottom concrete slab between the points of inflection. The literature is focused on construction, so this fills the need for a design oriented book for less experienced bridge engineers and for senior university students. Design of concrete structures shall be based on the requirements and guidance cited.
Based on observations made during construction, and on measurements taken of concrete strains, tendon strains, temperature distributions, and slopes, a series of detailed design, construction, and inspectionrelated recommendations are made. Design of a single cell rcc box girder bridge youtube. Appendix b example problems transportation research board. Prestressed concrete continuous box girder bridge design.
In rare instances integral pier caps or substructures will be designed using steel. Siva kumar 2 1 department of civil engineering, bitspilani hyderabad campus, india. The west gate bridge is one of a number of box girder bridges built during the mid 20th century, and was one of four to fail in a three year period. Manufacturer product data template complete this electronic spreadsheet to ensure that your box girder bridge deck systems product information meets the requirements of level 2 bim. Analysis and design of prestressed concrete box girder bridge. Application of uhpc in long span bridge design tu delft.
Lrfd design of double composite box girder bridges purvik patel abstract conventional continuous steel bridges only exhibit composite behavior in the positive moment region. The design is based on requiring the deck to act as a rigid assembly of longitudinal and transverse members. The design is based on requiring the deck to act as a rigid assembly of longitudinal and. The literature is focused on construction, so this fills the need for a designoriented book for less experienced bridge engineers and for senior university students. In this paper, cost optimization approach of a posttensioned pc igirder bridge system is presented. Design guidelines for steel trapezoidal box girder systems. A scaled down version of this design, the small box girder bridge, was also formally adopted by the army in 1932. It presents comprehensive theory, design and key construction methods, with a simple design example based on the aashto lrfd design. In this paper, cost optimization approach of a posttensioned pc i girder bridge system is presented. Therefore, the purpose of this paper is to present information relative to the design criteria in addition to information on pre liminary plate sizes, design aids, and computeraided design of steel box girder bridges. When tension flanges of longitudinal girders are connected together, the resulting structure is called a box girder bridge.
The behavior of box girder section for a general case of an. 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. Development of design specifications and commentary for. Plan, elevation and section views are shown on the following pages. This type of superstructure is generally used for spans between 20 to 40 m. The simplest and versatile software for structural analysis and design of bridges with super structures, sub structures, foundations, hydrological analysis, culverts, underpasses. Box girder bridges are commonly used for highway flyovers and for modern elevated structures of light rail transport.
Using of softwares for the design of bridges is much better than the manual procedure. Cantilever construction method is adopted and considered in design box girder bridge using balance cantilever method. 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. Analysis of box girder and truss bridges civil engineering. Overview of reinforcedconcrete boxgirder bridgedesign capability. An image of a model taken from the sap2000 bridge examples document is shown in figure 1. The box is typically rectangular or trapezoidal in crosssection. Customary aashtopciasbi segmental box girder standards for spanbyspan and balanced cantilever construction december, 1997, metric units including the following. Aesthetic considerations were of high importance in choosing the final design for the new bridge.
Arch, cablestayed, and suspension alternatives were considered, but ultimately, a continuous single box girder design consisting of seven spans was selected for its compatibility with the existing bridge. The objective is to minimize the total cost in the design process of the bridge system considering the cost of materials, fabrica. Solid slabs, voided slabs and multicell box girders 12. Investigation into the project revealed numerous issues in the bridge s design and construction. If made of concrete, box girder bridges may be cast in place using falsework. Authors todd helwig, joseph yura, reagan herman, eric williamson, dawei li 8.
The aim of this document is to relieve the practicing engineer of the need to study the mass of literature on the subject of concrete bridge construction so that he can devote time to the actual design process. American and japanese design and detailing practices of prestressed concrete box girder bridges are compared. Chapter 1 presents a brief history of the use of the bridge type and describes the basic components of a box girder superstructure. Steel bridge tutorials computers and structures, inc. An overview of the design and erection issues is presented, particularly those dealing with thin. Chapter 1 presents a brief history of the use of the bridge type and describes the basic components of a boxgirder superstructure.
The spreadsheet focus on design of prestressing cable for boxgirder bridge using balanced cantilever method. Box girder bridges of shallow rectangular crosssection and aerofoil characteristics became extensively used in road bridges from the 1960s onwards, such as the severn bridge, being much lighter than the deeper trusstype girder construction used on previous bridges such as the golden gate bridge. Although normally the box girder bridge is a form of beam bridge, box girders may also. The example illustrates the design of a typical threespan continuous straight steel igirder bridge with spans of 140. Finally, an example of the analysis of a bridge composed of a continuousspan, posttensioned concrete box girder superstructure and a concrete pier is also demonstrated using the approximate equivalent load method. Prestressed concrete psc boxgirder bridges are extensively used in. North water diversion canal workers to total chengxing feng line continuous prestressed concrete box girder bridge. Download bridge constructor and enjoy it on your iphone, ipad, and ipod touch. This is indicative of the lod requirements for box girder bridge deck systems. It presents comprehensive theory, design and key construction methods, with a simple design example based on the aashto lrfd design specifications for each of the main bridge types.
Investigation into the project revealed numerous issues in the bridges design and construction. Download structural design software astra pro 23 developed by techsoft engineering services. Attached is a model file and a pdf which outlines the procedure for modeling a concrete boxgirder bridge, a steelgirder bridge, and a cablestayed bridge. Oct 07, 2016 steel box girders are usually adopted in very long span bridges where it is necessary to keep the selfweight of the structure as minimum as possible. The box girder and the truss bridge evolved together but at different paces depending on the technology available and the geographical location e. Load resistance factor design lrfd for highway bridge superstructures, design examples pdf, 7. New steel box girder bridge heemsteedse brug across the amsterdam rhine canal at houtennieuwegein panoramio. A box girder bridge is a bridge in which the main beams comprise girders in the shape of a. Concrete boxgirder bridges transportation research board. Lrfd design examples federal highway administration.
Transverse design of adjacent precast prestressed concrete. List of lattice girder bridges in the united kingdom wikipedia. T or igirder bridges are the most common example under this category and are very. A threespan continuous composite bridge design example that has been studied in kaveh 2014 is chosen to show the performance of the lpoa and existing. The fhwa posttensioned box girder design manual was developed for engineers who have limited exposure to the design and construction of prestressed concrete bridges.
The design lifetime for newly designed bridges as given in eurocodes is 100 years. Lessons learned in the design and erection of box girder. The proposed design in volves provision of posttensioned. Analysis and design of segmental box girder bridge md tauheed reyaz1, syeda nikhat fathima2 1lecturer, dept of civil engineering, hms rural polytechnic, karnataka, india 2assistant professor, dept of civil engineering, hms institute of technology karnataka, india abstract a bridge may be a means that by that a road. This design example demonstrates the design of a tangent threespan continuous composite tub girder bridge with a span arrangement of 187.
The term lattice girder, is used in the uk and lattice truss is more widely used in the usa. Steel box girder is used for footbridges curved in plan and also for bridges with longer spans. Mar 27, 2019 attached is a model file and a pdf which outlines the procedure for modeling a concrete box girder bridge, a steel girder bridge, and a cablestayed bridge. This horizontally curved steel box girder br idge design example was originally developed in the nchrp 1238 project using the 1993 aashto gu ide specifications for horizontally curved steel girder bridges. A new precast, prestressed box girder bridge design suitable to u. It is assumed the bridge will be cast on falsework. A typical section of steel box girder download scientific diagram. The design combines the performance require ments for a japanese bridge with the simplicity of american construction practices. Specific rules for shear connectors design in the elasto.
In addition, a design example for a twospan plate girder superstructure is. While the design examples consider box girders of constant depth. Introduction box girders have become a prominent element in the con. Thestriking 77mspan box girder bridge project is intended to form a link between meraas the beach opposite jbr and its bluewaters waterfront resort where visitors can ride the worlds tallest and largest observation wheel, ain dubai. Box girder bridge design, engineering journal, american institute of steel construction, vol. Although normally the box girder bridge is a form of beam bridge, box girders may also be used on cablestayed bridges and other forms. Thestriking 77mspan boxgirder bridge project is intended to form a link between meraas the beach opposite jbr and its bluewaters waterfront resort where visitors can ride the worlds tallest and largest observation wheel, ain dubai. The example illustrates the design of a typical threespan continuous straight steel i girder bridge with spans of 140. Finally, an example of the analysis of a bridge composed of a continuousspan, posttensioned concrete box girder superstructure and a concrete pier is also demonstrated using. New steel box girder bridge heemsteedse brug across. Download a pdf of development of design specifications and commentary for horizontally curved concrete boxgirder bridges by the national academies of sciences, engineering, and medicine for free.
Jun 15, 20 the authors have established a more accurate thinwalled beam theory of box girder, and, as an extension of the thinwalled beam theory, developed a theory of bending and torsion of the truss bridge. Segmental box girders for the high level west seattle bridge rising 150 ft 46, state of washingi span of the west. This section is intended to provide general design guidance and information on detailing practices. Many practical examples have been analyzed, and from these results, conclusions valuable to design practice have been deducted.
Download scientific diagram example psc boxgirder bridge. So through this project, we are analyzed the structural behavior of post tensioned box girder bridge using the recently developed software called csi bridge version 2015. Siteblauvelt engineers cranberry township, pa pittsburgh, pa b s d i design. Analysis and design of prestressed box girder bridge by irc. Posttensioned box girder bridge an analysis approach. The authors have established a more accurate thinwalled beam theory of box girder, and, as an extension of the thinwalled beam theory, developed a theory of bending and torsion of the truss bridge. Steel box girders are usually adopted in very long span bridges where it is necessary to keep the selfweight of the structure as minimum as possible. Box girder bridge deck systems bim object definition from nbs. Overview of reinforcedconcrete box girder bridge design capability. Box girder types bridge building bridges of dublin. Measured behavior of a curved precast segmental concrete. 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.
834 1141 922 1340 994 500 922 532 1057 732 964 1102 930 590 1542 343 1329 472 1225 1128 995 965 395 1535 1261 578 1293 1069 375 1223 404 742 1415 1479 916 1355 392