Research Of Different Forms Of The Deepwater Pier Continuous Rigid Frame Bridgets Piers Under The Action Of Dynamic Water Pressure On Seismic Performance

Along with the vigorous development of traffic cause in our country, in theforeseeable future, there will be more and more of deep-water Bridges built in frequentearthquake area.with the powerful destructive earthquake on bridge structure, theseismic design of bridge structure is particularly important.when the earthquake effect,Bridges in deep water environment, pier-coupling effect of water flow has changeddynamic characteristics and internal force response of the bridge structure, affecting theseismic performance of the structure of the bridge.so design reasonable form of pier, notonly can reduce the structure and the dynamic water pressure caused by the action andreaction between water, but also increase the overall seismic erformance of Bridges.aiming at this problem, this article relies on the earth of wenchuan earthquakereconstruction of key projects——The Baishui new bridge, onhe national highway212for these following research:1Summary of deepwater pier continuous rigid frame bridge construction presentsituation at home and abroad are introduced, and the shakes water pressure of deepwater piers at home and abroad research status; expounds the research on deepwaterpier continuous rigid frame bridge seismic performance, considering the necessity ofdynamic water pressure.2Bridge seismic response analysis method is introduced, and emphaticallyintroduces the development process and the principle of dynamic time history method.And deepwater pier Bridges to the analysis of the dynamic water pressure and thefluid-structure interaction problem solving thinking.3Based on The Baishui new bridge, analyses its role in considering the dynamicwater pressure and does not consider dynamic water pressure, the bottom of the piershear force and bending moment). By comparing their seismic performance of theconfiguration, select the respective conditions, reasonable bridge lower part structure.4Based on the theory of fluid-structure interaction, research different waterdepths of high pier continuous rigid frame bridge seismic response, and the influence ofdifferent water depth under the pressure of flowing water.