摘要
以广东东莞郭洲大桥(65 m+110 m+65 m连续刚构桥)为工程背景,在软土地基条件下,分别采用等代刚度(土弹簧)、分层刚度(土弹簧)、刚度矩阵(一般弹性支承)、和承台底固结(一般支承)4种方式模拟群桩基础,利用桥梁结构分析软件MIDAS CIVIL V2.1进行计算,得到4种模拟方式下桥梁的结构响应。最后进行结果对比分析,找出最符合实际情况的模拟方式,可供类似工程作为参考。
Based on the engineering background of Guozhou Bridge(65 m+110 m+65 m continuous rigid frame bridge) in Dongguan,Guangdong,under the condition of soft soil foundation,pile group foundation is simulated by using equivalent stiffness(soil spring),layered stiffness(soil spring),stiffness matrix(general elastic support),and bottom consolidation of cushion cap(general support),and the bridge structure analysis software MIDAS CIVIL V2.1is used for calculation.The structural responses of the bridge under the four simulation modes are obtained.Finally,the results are compared& analyzed to find the most suitable simulation method for similar projects.
作者
吴亮
WU Liang(Transfigure Design Co.,Ltd.,Changsha 410011,China)
出处
《中国市政工程》
2022年第6期74-77,125,共5页
China Municipal Engineering
关键词
连续刚构桥
群桩基础
基础模拟
刚度矩阵
continuous rigid frame bridge
pile group foundation
basic simulation
stiffness matrix