高墩大跨连续刚构桥主墩设计方案探讨  

Discussion on Design Scheme for Main Pier of High Pier Long-span Continuous Rigid Frame Bridge

作　　者：杜永超 DU Yong-chao(Liaoning Provincial Transportation Planning and Design Institute Co.,Ltd.,Shenyang 110166,China)

机构地区：[1]辽宁省交通规划设计院有限责任公司,沈阳市110166

出　　处：《北方交通》2020年第11期21-23,27,共4页Northern Communications

摘　　要：结合水田坝特大桥工程设计实例,研究了大跨径连续刚构桥的主墩刚度平衡问题,利用有限元分析对比了各主墩刚度,得出了合理的主墩截面形式及尺寸,对于同类型墩高差异较大的山区刚构桥,提供了可参考的主墩设计方案。In combination with the design example of Shuitianba grand bridge,the rigidity balance problem of main pier of long-span continuous rigid frame bridge is studied.The rigidity of each main pier is compared by finite element analysis,and the reasonable section form and size of main pier are obtained,so as to provide a design scheme for main pier that can be referenced for the mountainous rigid frame bridge with large difference in the pier height of the same type.

关 键 词：刚构桥 空心薄壁墩 抗推刚度 桥墩刚度平衡 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]