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A platform for research: civil engineering, architecture and urbanism
Evaluation and Retrofit Issues for Steel Truss Bridges in Eastern United States
Steel truss bridges have long been a popular design option and come in a wide variety of sizes shapes and forms- from a simple span truss of less than 100ft to a cantilever truss with a total length of thousands of feet. Most of the steel truss bridges built in the Eastern United States were not designed for seismic loads as now specified in the current AASHTO provisions. As a result, many public transportation agencies are now considering seismic retrofit as a component of major rehabilitation projects. The extent of seismic retrofitting is determined by performing a comprehensive seismic analysis and computing capacity-demand ratios for various bridge components. Unfortunately, it is difficult to standardize the seismic analysis, evaluation and retrofit procedure for truss bridges due to their variety in size, shape and form. Many practicing engineers today are faced with the question of selecting an appropriate method for a seismic analysis and evaluation of truss bridges. This is especially the case with the Eastern United States where earthquakes are not common.
Evaluation and Retrofit Issues for Steel Truss Bridges in Eastern United States
Steel truss bridges have long been a popular design option and come in a wide variety of sizes shapes and forms- from a simple span truss of less than 100ft to a cantilever truss with a total length of thousands of feet. Most of the steel truss bridges built in the Eastern United States were not designed for seismic loads as now specified in the current AASHTO provisions. As a result, many public transportation agencies are now considering seismic retrofit as a component of major rehabilitation projects. The extent of seismic retrofitting is determined by performing a comprehensive seismic analysis and computing capacity-demand ratios for various bridge components. Unfortunately, it is difficult to standardize the seismic analysis, evaluation and retrofit procedure for truss bridges due to their variety in size, shape and form. Many practicing engineers today are faced with the question of selecting an appropriate method for a seismic analysis and evaluation of truss bridges. This is especially the case with the Eastern United States where earthquakes are not common.
Evaluation and Retrofit Issues for Steel Truss Bridges in Eastern United States
Mehta, Sanjay (author)
Structures Congress 2001 ; 2001 ; Washington, D.C., United States
Structures 2001 ; 1-13
2001-05-18
Conference paper
Electronic Resource
English
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