低承台桩基墩柱式结构水平荷载作用下的桩基计算  

Calculation of pile foundation of pile cap pier column structure under horizontal load

作　　者：章少兰 胡彧元 ZHANG Shao-lan;HU Yu-yuan(CCCC Water Transportation Consultants Co.,Ltd.,Beijing 100007,China)

机构地区：[1]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2021年第10期188-193,共6页Port & Waterway Engineering

摘　　要：某船闸靠船墩结构采用低承台桩基墩柱式结构。按照《建筑桩基技术规范》考虑承台、基桩协同工作和土的弹性抗力作用计算受水平荷载的桩基内力及位移,内含大量插值查表,计算复杂,具有一定的人为偏差。采用STAAD.PRO软件建立桩基、承台及土单元模型,并将上部墩柱结构及荷载进行力学转换后作用于承台,分析低承台桩基墩柱式结构桩基内力及位移,并与工程实例计算结果对比。结果表明,STAAD.PRO计算结果与规范计算结果基本一致,工程实践中可使用该软件方便地计算低承台桩基墩柱式结构水平荷载作用下的内力及位移。The low pile cap pier column structure is adopted in the berthing pier structure of a ship lock.According to Technical Code for Building Pile Foundations,the internal force and displacement of pile foundation are calculated according to the calculation method of pile foundation under horizontal load considering the cooperative work of pile cap and foundation pile and the elastic resistance of soil,which is complex and has certain human deviation because of large amount of interpolation and look-up table.We establish the pile foundation,pile cap and soil model by STAAD.PRO software,convert the upper pier column structure and load to stress acting on the pile cap,analyze the internal force and displacement of the pile foundation of low pile cap pier column structure,and compare the code results with the results of engineering examples.The results show that the calculation results of STAAD.PRO are basically consistent with the code results.In the engineering practice,the software can be used to calculate the internal force and displacement of a low pile cap under horizontal load.

关 键 词：低承台桩基墩柱式结构 水平荷载 桩、土与承台共同作用 

分 类 号：U641.2[交通运输工程—船舶及航道工程] TU473.1[交通运输工程—船舶与海洋工程]