考虑竖向地震作用时连续梁桥地震反应分析

Analysis of Earthquake Reaction of Continuous Beam Bridge Under Vertical Earthquake Action

以赵家堡大桥为研究对象,重点研究考虑竖向地震作用时高烈度地震区桥梁的地震反应行为,分别计算了赵家堡大桥在50 a超越概率63.5%的安评地震波P1作用和50 a超越概率10%的安评地震波P2作用下的地震反应。通过对该桥的地震反应分析,得到了竖向地震对该桥地震响应的影响情况,并给出考虑竖向地震作用的参考建议。

The article takes Zhaojiabao Bridge as the research object and focuses on the earthquake reaction of the bridge in high-intensity earthquake area during vertical earthquake period.The earthquake reaction of Zhaojiabao Bridge is calculated under over probability 63.5% of earthquake wave of safety assessment P1 and probability 10% of earthquake wave of safety assessment P2 in 50 years.With the earthquake reaction analysis of the bridge,the response of the bridge on earthquake is received and suggestion on vertical earthquake reaction is provided.