顺桥向水平力冲刷作用下某大桥裸露桩柱的计算分析  

Mathematical Analysis for Erosion Exposed Piles of Bridge under Horizontal Force in Axial Direction

作　　者：梅俊伟[1] 张建龙[1] 田野野 

机构地区：[1]长安大学,陕西西安710064

出　　处：《现代交通技术》2015年第2期36-39,共4页Modern Transportation Technology

摘　　要：文章选取某连续梁桥一联作为研究对象,计算其各墩墩顶承担的水平力;通过桥梁有限元软件对该桥10#桥墩进行建模分析,得出在墩顶顺桥向水平力的作用下冲刷裸露桩柱的应力分布规律和不同桩基冲刷深度下的墩底弯矩变化规律。建议对于受冲刷的桥墩采用加大截面法加固,对于冲刷达到一定深度的桥梁在墩底加设新桩基和承台结构。Taking a union of some continuous girder bridge as the research object, this paper calculated the horizontal force of each pier top. Then it studied and analyzed the finite element modeling of No.lO pier created by finite element software, and obtained the stress distribution of exposed piles under the axial horizontal force acted upon the top of pier. Then it also obtained the moment variation at the bottom of pier under the axial horizontal force upon the top of pier with different scour depth. At last, corresponding reinforcement proposals were put forward.

关 键 词：墩顶顺桥向水平力 冲刷裸露桩柱 应力 墩底弯矩 有限元分析 

分 类 号：U442.59[建筑科学—桥梁与隧道工程]