地震作用下路桥过渡段耦合振动响应及破坏特征研究

来源 :第七届中国公路科技创新高层论坛 | 被引量 : 0次 | 上传用户：puhongzhi

【摘要】

：

路桥过渡段是线路中的薄弱部位,地震荷载易导致路桥过渡段裂缝与错台以及岸坡与桥台滑移.利用FLAC3D软件建立路基与桥台的动力流固耦合三维模型,通过计算分析地震作用下的路桥过渡段的动力响应规律及破坏原因.结果表明:地震作用下路桥过渡段与桥台产生了较大的永久变形,桥台的运动模式主要有滑移及转动两种;土体的性质对路桥过渡段动力响应影响较大,地基土液化及岸坡滑移是导致路基与桥台破坏的主要原因.

【作者】

：

廖知勇白皓钟彪李祖君梁栋杨军川

【机构】

：

四川高速公路建设开发总公司四川交通职业技术学院

【出处】

：

第七届中国公路科技创新高层论坛

【发表日期】

：

2015年8期

【关键词】

：

路桥过渡段耦合振动响应破坏特征地震荷载

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地震作用下路桥过渡段耦合振动响应及破坏特征研究

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