桩基重力式桥台计算分析  

Calculation and analysis of gravity abutment with pile foundation

作　　者：王步高 Wang Bugao(Shenzhen Transportation Design ＆ Research Institute Co. , Ltd. , Shenzhen 518003, Guangdong)

机构地区：[1]深圳市综合交通设计研究院有限公司,广东深圳518003

出　　处：《工程建设》2018年第5期52-56,共5页Engineering Construction

摘　　要：桩基重力式桥台相比传统的扩大基础式重力式桥台,结构受力更为复杂;特别是台身高度较大时,前后排桩基受力差别很大。本文通过对桩基重力式桥台进行系统的计算分析,发现了拟定合适的桥台构造参数,包括支座中心线位置、台身重心位置、台身坡比、桩基间距等,可以较大程度地优化基础受力,缩短桩长,从而降低工程造价。Compared to the traditional gravity abutment with expanded foundation, the structural stress of gravity abutment with pile foundation is more complicated. Especially when the height of the abutment is large, the stress difference between the front and rear rows of pile foundation is big. In this paper, through systematic calculation and analysis of the gravity abutment with pile foundation, the prepared appropriate bridge abutment construction parame- ters are found, including the location of the centerline of the support, the center of gravity of the platform, the slope ratio of the platform and the spacing of the pile foundation, the force of the foundation can be optimized to a great ex- tent, the pile length can be shortened, thereby the project cost can be reduced.

关 键 词：桩基重力式桥台 桩基间距 单桩承载力 

分 类 号：U443.21[建筑科学—桥梁与隧道工程]