减隔震支座在大跨度预应力混凝土连续梁桥中的应用

Application of Seismic Mitigation and Isolation Bearing in Long-span Pre-stressed Concrete Continuous Beam Bridge

以王借岗大桥抗震设计为背景,对减隔震支座技术对大跨度预应力混凝土连续梁桥中的应用进行了研究。抗震计算采用MIDAS/Civil 2013空间有限元软件,对主桥的地震力进行了空间分析。分析结果显示,减隔震支座的应用可以显著减小地震力。

Taking the seismic design of Wangjiegang Bridge as the background, the article studies the application of seismic mitigation and isolation bearing technology in long-span pre-stressed concrete continuous beam bridge. The space finite element software of MIDAS/Civil 2013 is used for the seismic calculation. The space analysis is carried out for the earthquake force of the main bridge. The analysis result shows that the application of seismic mitigation and isolation bearing can obviously decrease the earthquake force.