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A platform for research: civil engineering, architecture and urbanism
Steel Truss Bridge with Buckling Restrained Dampers Under Seismic Loading
There are quite a few bridges designed by the old design codes in Japan. Many of those bridges may not be satisfactory for the current seismic design codes. The behavior of a steel truss bridge under a large seismic loading is investigated by the nonlinear dynamic finite element analysis in the present study, and indeed some members are found possibly damaged by the earthquake. The Buckling Restrained Bracing (BRB) is widely used to improve the seismic behavior of a building. On the other hand, its application to bridges is very limited. The BRB device may also be used as a damper rather than a structural member; in which case the device may be called a buckling restrained damper (BRD). Yet, such applications have not been studied well. In the present research, the application of the BRD is tried. A parametric study on the seismic behavior of a steel truss bridge with BRDs is conducted by changing the length and the cross-sectional area of the yielding core of the BRD. The influence of the locations of BRDs is also considered. The study concludes that with the application of well-designed BRDs to appropriate locations, a steel truss bridge could go through a large earthquake without damage.
Steel Truss Bridge with Buckling Restrained Dampers Under Seismic Loading
There are quite a few bridges designed by the old design codes in Japan. Many of those bridges may not be satisfactory for the current seismic design codes. The behavior of a steel truss bridge under a large seismic loading is investigated by the nonlinear dynamic finite element analysis in the present study, and indeed some members are found possibly damaged by the earthquake. The Buckling Restrained Bracing (BRB) is widely used to improve the seismic behavior of a building. On the other hand, its application to bridges is very limited. The BRB device may also be used as a damper rather than a structural member; in which case the device may be called a buckling restrained damper (BRD). Yet, such applications have not been studied well. In the present research, the application of the BRD is tried. A parametric study on the seismic behavior of a steel truss bridge with BRDs is conducted by changing the length and the cross-sectional area of the yielding core of the BRD. The influence of the locations of BRDs is also considered. The study concludes that with the application of well-designed BRDs to appropriate locations, a steel truss bridge could go through a large earthquake without damage.
Steel Truss Bridge with Buckling Restrained Dampers Under Seismic Loading
Lecture Notes in Civil Engineering
Dissanayake, Ranjith (editor) / Mendis, Priyan (editor) / De Silva, Sudhira (editor) / Fernando, Shiromal (editor) / Konthesingha, Chaminda (editor) / Attanayake, Upul (editor) / Gajanayake, Pradeep (editor) / Yamaguchi, E. (author) / Enkhbold, N. (author) / Sosorburam, P. (author)
International Conference on Sustainable Built Environment ; 2023 ; Kandy, Sri Lanka
Proceedings of the 14th International Conference on Sustainable Built Environment ; Chapter: 41 ; 569-579
2024-08-28
11 pages
Article/Chapter (Book)
Electronic Resource
English
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