R 411711103031 in partial fulfillment for the award of the degree of bachelor of engineering in civil engineering prince shri venkateshwara padmavathy engineering college, ponmar. Cable stayed bridges have been around for about 40 years ago. This is in contrast to the modern suspension bridge, where the cables supporting the deck are suspended vertically from the main cable. These guidelines are intended for the design of cable stayed bridges. The cablestayed design uses less steel cable than a suspension bridge, and is faster and easier to build. The first bridges made by humans were probably spans of wooden logs or planks and eventually stones, using a simple support and crossbeam arrangement. Analysis of cablestayed bridges during construction by. This is an early example of the cable stayed bridge construction that became prominent particularly in german design practice since world war ii. Parallel attachment design or harp design in this case. The example bridge is a longspan cable stayed bridge of a 605 m central span length with steel box girder. The analysis based on an ideal state as well as the simulation and controls to reach it are common issues in the design and construction of a cable stayed bridge.
Cable stayed bridge thomas, blesson, thakkar, sonal on. Bridge examples pdf concrete boxgirder, steelgirder, and cablestayed bridge tutorials. Cable stayed bridges with prestressed concrete fritz leonhardt prof. A simpler biography summary cable stayed bridge exp. Engineers constructed the first cable stayed bridges in europe following the close of world war ii, but the basic design dates back to the 16th century and croatian inventor faust vrancic. Towers of suspension and cable stayed bridges functions and conceptual design towers of bridges are vertical concrete or steel structures which are extended above bridge decks. The idea of using cables to support bridge spans is by no means new, and a number of examples of this type of construction. The haunted desert biblical history documentary timeline duration. Cable stay bridge design free download as pdf file. An example of this latter arrangement can be seen with the design of the ting kau bridge, hong kong, which is a fourspan cablestayed bridge.
Example of suspension bridge is golden gate bridge in san francisco. Unlike the natural eigenvalue modes, load dependent ritz vectors produce more reliable results in dynamic analyses with relatively fewer modes. Alternatives in the design and construction of cablestayed. 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.
Introduction cables stretch diagonally between these pillars or towers and the beam. The author describes the evolution and basic concepts of cablestayed bridge systems. Cablestayed bridge tutorials computers and structures. The effects of highway and railroad loadings, seismic effects, and dynamic wind load effects are thoroughly covered. Timeline world history documentaries recommended for you. Cables are usually connected to columns in two ways harp design each. Cablestayed bridge, finite element, fan bridge, semi fan bridge. Cablestayed bridge as an alternative for medium and short. Comparison between three types of cable stayed bridges using structural optimization olfat sarhang zadeh the university of western ontario supervisor dr. Design of single pylon cable stay bridge slideshare.
Indeed, while a long cablestayed span is under construction, there may be great concern about possible oscillations, until the cantilevers are joined. Loadings and materials used for the design of cablestayed bridges are discussed. A contemporary of astronomers tycho brache and johannes kepler, vrancic produced the first known sketch of a cable stayed bridge in his book machinae novae. The technique of cablestayed construction has been used and continually developed over the last 50years. Abstract this thesis describes the structural behavior of cablestayed bridges, identifies cablestayed bridge elements, and discusses their role in supporting the structure. This document explores the potential for variation within the typology. It crosses the gulf of corinth near patras, linking the town of rio on the peloponnese peninsula to antirrio on mainland greece by road. Loadings and materials used for the design of cable stayed bridges are discussed. Analysis of the performance of cablestayed bridges under. Design of cable systems for cable suspended bridges by jeanpierre michel chacar submitted to the department of civil and environmental engineering on may 21,2001 in partial fulfillment of the requirements for the degree of master of engineering in high performance structures abstract. Feb 02, 2016 design of single pylon cable stay bridge 1.
The bridge has been preserved for historic and aesthetic reasons only. These cables support the beam a cable stayed bridge, one of the most modern bridges, consists of a continuous strong beam girder with one or more pillars or towers in the middle the cables are anchored. Comparison between three types of cable stayed bridges using. The ultimate goal is to support reduction of problems on future bridge projects. There are many other examples of ancient cable stayed bridge systems found around the world. Cable suspended bridges are innovative structures that are both old and new in concept. R 411711103031 in partial fulfillment for the award of the degree of bachelor of engineering in civil engineering prince shri venkateshwara padmavathy engineering college, ponmar anna university.
An example of a cablestayed bridge that is an exception to the rectangular tower form is the modi. A cablestayed bridge has one or more towers or pylons, from which cables support the bridge deck. Appendix a general design and construction issues a1 introduction this appendix presents the general and specific issues which influence the design of a replacement crossing. London, england imagegoddenc58 small cable stayed footbridge. In the following youtube link a movie of vibration of this bridge is shown. The bridge concept include a semifan, central suspended span and selfsupported cable stayed system. Seminar report on cable suspension bridge to be submitted in partial. However, the cablestayed bridge concept offers more and can adapt to very special boundary conditionsthe outcome may be e. Early chinese people used the cable stayed system to construct suspension bridges out of hemp rope and iron chains 6. In united states, the first cable stayed bridge is a 361ft long pedestrian bridge in menomonee falls 1971 while the first cable stayed highway bridge is the sitka harbor bridge in alaska 1972. Design of single pylon cable stayed bridge a project report submitted by harish. Interested in learning about ways to improve bridge design and construction quality. Jan 22, 2014 after a few years, other bridges were built and one of the famous bridges built was the 5span 5. Some considerations in the design of long span bridges against progressive collapse theodore p.
For a longspan cablestayed bridge, the huge initial stress accumulated in the. For any possible bridge crossing, the most feasible options would be either a suspension bridge or a cable stayed bridge. Most of these early bridges could not support heavy weights or withstand strong currents. A cable stayed bridge has one or more towers or pylons, from which cables support the bridge deck. To allay these concerns, a simplified cable stayed bridge design has been developed. Abstract this thesis describes the structural behavior of cable stayed bridges, identifies cable stayed bridge elements, and discusses their role in supporting the structure. Comparison between three types of cable stayed bridges. The ritz vectors are generated reflecting the spatial distribution or the characteristics of the dynamic. In the longitudinal direction, the bridge is symmetric with respect to the midspan, and it include two towers and two set of cables.
The definition of cablestayed bridge deck length used here is. Bridge foundations have to be carefully selected and constructed since they will bear the bridge. Feb 20, 2016 cable stayed bridge construction on site pics and details. It is the most common construction choice today when a bridge is required to span more than 300. Cablestayed bridge as an alternative for medium and short span bridges azita azarnejad, ch2m hill ken mcwhinnie, ch2m hill gamil tadros, speco engineering jiri strasky, jiri strasky consulting engineer paper prepared for presentation at the bridges successes. It has three features that set it apart from most existing cable stayed bridges. Mar 27, 2019 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. The key element for both suspension bridge and a cablestayed bridge is the cable. General data of the bridge according to the given conditions and the accepted concept of precast superstructures the bridge is designed as a cable stayed beam, with two spans 14. These guidelines are intended for the design of cablestayed bridges. For a longspan cable stayed bridge, the huge initial stress accumulated in the.
Analysis of the performance of cablestayed bridges under extreme events thesis by yukari aoki. Cable stay bridge design bridge deep foundation scribd. Pdf construction stage analysis of cablestayed bridges. Towers of suspension and cable stayed bridges functions, design. A finite element fe model for a cable stayed bridge. A continuous part of the bridge deck that is supported only by staycables and pylons, or are free spans. Consulting engineer stuttgart west germany the number of cable stayed bridges with concrete or steel has increased dramatically during the last decade.
A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fanlike pattern or a series of parallel lines. There are many other examples of ancient cablestayed bridge systems found around the. The disadvantage of such an auxiliary cable system is that the individual cables are very long and the large sag will be visually dominant when compared with the adjacent stay cable plane. To allay these concerns, a simplified cablestayed bridge design has been developed. This bridge, nicknamed galloping gertie, is still referenced in engineering textbooks as an example of how not to build bridges in extreme wind areas.
The posttensioning institutes pti recommendations for stay cable design, testing and installation provide explicit design guidance for abrupt cable loss as well as cable replacement 1. In the schematic, you can see how the forces keep the bridge up. Design of cable systems for cable suspended bridges. The author describes the evolution and basic concepts of cable stayed bridge systems. For example, xiaoyudong bridge in china was damaged during the may 12th 2008 wenchuan earthquake with the magnitude of 8. At the end of the document, two examples are included to show the. General data of the bridge according to the given conditions and the accepted concept of precast superstructures the bridge is designed as a cablestayed beam, with two spans 14. Annex 1 contains the british design manual for roads and bridges, january 1993, volume. Pdf this document describes an optimization problem of cable cross section of a. Design and construction of cable sta yed bridges the variety of cablestayed bridges illustrates the ingenious attempts to provide owners with unique design solutions. In us practice, cable stayed bridges are the only long span bridge form routinely designed for member cable loss. For the cable stayed bridges built till the beginning of 1960s, each stay cable was generally composed. It is used in the construction of cable stayed bridge, suspension bridge and hybrid suspension cable stayed structures.
The bridge design will be basically determined by the type of bridge, such as the beam bridge or the suspension bridge. Cablestayed bridges have been around for about 40 years ago. Cablestayed bridge tutorials computers and structures, inc. Indeed, while a long cable stayed span is under construction, there may be great concern about possible oscillations, until the cantilevers are joined. Engineers constructed the first cablestayed bridges in europe following the close of world war ii, but the basic design dates back to the 16th century and croatian inventor faust vrancic. Pdf construction stage analysis of cable stayed bridges. Alternatives in the design and construction of cable. Bridge engineering the first bridges were made by nature as simple as a log fallen across a stream. Since the bridge is still in the design phase, the geometry and the.
Among the most important nonlinear effects to consider in the design of a cable stayed bridge are cables and deck wind vibrations 3, 4, seismic analysis considering soilstructure interaction and multiple base excitations 5, 6, and pushover analysis to determine the resistant capacity 7. Henderson office of infrastructure research and development notice. Lec12 cablestayed 2012 department of civil engineering. Tutorial included in the sap2000 bridgeexamples document. List of longest cablestayed bridge spans wikipedia. Action forces for equivalent systems action forces of actual systems bridge dynamics protection of bridges against ship collision preliminary design c. These cables support the beam a cablestayed bridge, one of the most modern bridges, consists of a continuous strong beam girder with one or more pillars or towers in the middle the. This thesis examines issues other than design calculation in cable systems such as protection of. Modern cablestayed bridges have used both steel and con crete towers, including single and doubleplane vertical. Steel bridges file cable stayed bridge cable stayed bridges dr. The analysis based on an ideal state as well as the simulation and controls to reach it are common issues in the design and construction of a cablestayed bridge. A typical cablestayed bridge is a continuous girder with one or two towers erected. A contemporary of astronomers tycho brache and johannes kepler, vrancic produced the first known sketch of a cablestayed bridge in his book machinae novae.
Design of cable systems for cable suspended bridges by. Assement of key response quantities for design of a cablestayed bridge subjected to sudden loss. An image of a model taken from the sap2000 bridge examples document is shown in figure 1. Thus, there are three main objectives for this research, which are the effect of sudden loss of critical cable s, cable loss due to blast loadings and progressive collapse triggered by the earthquake. A cable stayedbridge lacks the great rigidity of a trussed cantilever, and the continuous beam compensates for this to some extent. Mar 12, 2015 a cable stayed bridge lacks the great rigidity of a trussed cantilever, and the continuous beam compensates for this to some extent. The structural behavior of a counter weighted cable stayed bridge. Early chinese people used the cablestayed system to construct suspension bridges out of hemp rope and iron chains 6. Other situations may call for cablestayed bridges, where the deck is not straight in plan but curved. Wolff and starossek 2008 studied the collapse behaviour of a 3d cable stayed bridge model and found out that the initial failure loss of the three cables around the pylon can trigger a. In germany, particularly in rhine and elbe rivers, these kinds of bridges were built to replace the bridges that were destroyed during the world war ii and these improve the highway transportation system.
Cable stayed bridges ice manual of bridge engineering. Course title cablestayed bridge seminar the national highway institutes nhi oneday cable stayed signature bridge seminar is intended to provide participants with an introduction to planning, design, and construction of longspan, cable stayed bridges. A cable stayed bridge lacks the great rigidity of a trussed cantilever, and the continuous beam compensates for this to some extent. Lets build on them b session of the 2011 annual conference of the. The deck is made of three spans, the central one of 150 m and two lateral ones of 75 m each. The forward process analysis of cablestayed bridges during construction is performed by following the sequence of erection stages in bridge construction, while the backward process analysis follows the reverse direction of the sequence of the bridge erection procedure. The purpose of this thesis is to preliminary design three bridge alternatives. An introduction to cablestayed bridges construction.