Title :
Seismic response analysis of rigid-frame tied-arch bridges under strong after-shock
Author_Institution :
Sch. of Constr. & Safety Eng., Shanghai Inst. of Technol., Shanghai, China
Abstract :
Rigid-frame tied-arch bridges have become one of widely-used bridges due to the good performances. However, the research on its seismic performance, especially on the seismic response of its structure under strong after-shock, is not sufficient. The strong after-shock time-history which obtained through statistical laws was used as input earthquake motion in the paper. The structure-damaging index from “first exceed” and “cumulative damage” destruction were completely considered to verify the damage status of structures. The seismic response of a typical rigid-frame tied-arch bridge under strong after-shock was analyzed in this paper. The results show that the load of strong after-shock intensifies the structure damage, which is important to researches and analysis of the seismic performance for key bridges.
Keywords :
bridges (structures); earthquake engineering; seismology; structural engineering; cumulative damage destruction; earthquake motion; rigid frame tied-arch bridge; seismic performance; seismic response analysis; statistical laws; strong after-shock; structure damage status; structure-damaging index; Bridges; Conductivity; Earthquakes; Electric shock; Performance analysis; Plastics; Safety; Seismic measurements; Seismic waves; Time series analysis; Rigid-frame tied-arch bridge; Seismic response; Strong after-shock;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5536592