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Seismic Response Analysis of Long-Span Rigid Frame Bridge Subjected to Near-Fault Pulse-Like Ground Motions

Author: ZhangLinChun
Tutor: DiChangHai
School: Harbin Institute of Technology
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Near-field pulse -type ground motion Span Rigid Frame Bridge Seismic Response Analysis Ground motion parameters Ground motion damage potential
CLC: U441.3
Type: Master's thesis
Year: 2007
Downloads: 84
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Abstract


Urban infrastructure over the past decade and abroad consecutive city epicentral earthquake caused damage, casualties and property losses in the world would shocking , these earthquakes showing a more complex , more destructive earthquake near - field pulse of engineering structures dynamic characteristics of the near-field earthquake engineering structures is extremely widespread and serious damage , but many of the new seismic damage also can not get a good explanation from the existing theory . In this paper , to Chongqing the Guangyang Island Bridge , for example , large span rigid frame bridge in the near-field pulse type motions reaction . The main work of this paper are as follows : ( 1 ) analysis of several typical near-field effect of the mechanism , the near-field pulse -type ground motion waveform and response spectrum characteristics , and to explore the feasibility of using a simple pulse model instead of the actual near - field ground motions . Reinforced concrete rigid frame bridge ( 2 ) the use of the four stations recorded to the near-field and far- field ground motion response characteristics of the near-field pulse type motions and vibration under the seismic response compared with the far field analysis of long-span bridge in the destruction of two types of ground motion characteristics , compared the the bridge reaction caused by the simple pulse and pulse , made ??recommendations to the seismic design of large span rigid frame bridge in the near-field zone . ( 3 ) application of a large number of ground motion near-field pulse -type ground motion characteristics and far- field ground motion parameters with large span rigid frame bridge seismic response reveals a near- field ground vibration on long-span bridges failure mechanism .

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CLC: > Transportation > Road transport > Bridges and Culverts > Structural principles, structural mechanics > Bridge vibration and damping device
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