用荷载传递法分析PTC管桩的抗拔性状  

Analysis on Lift Behaviors of PTC Pile by Load Transfer Method

作　　者：张芳芳[1] 李海兵 ZHANG Fang-fang;LI Hai-bing(Shanxi Datong University,Datong 037003,China;China Construction First Group the Fifth Construction Co.Ltd.,Beijing 100024,China)

机构地区：[1]山西大同大学,山西大同037003 [2]中建一局集团第五建筑有限公司,北京100024

出　　处：《工程建设与设计》2024年第9期31-34,共4页Construction & Design for Engineering

基　　金：2022年山西省高等学校科技创新计划(2022L451);2022年度大同市应用基础研究项目(2022055)。

摘　　要：建立了PTC管桩的荷载传递模型,并对相关参数的选取与计算进行了探讨。采用VC++语言编写了用位移协调法计算此桩在上拔荷载作用下的P-S曲线及轴力的程序,计算值与实测值吻合良好,则表明此方法合理可行,在实际工程中可用来推算管桩的极限承载力,以达到替代或部分替代现场试验的目的。In this paper,the load transferring model of PTC pipe pile was established,selection and calculation of its parameters was discussed.According to themethod of coordination harmony displacement,the simulating calculation of P-s curves and axial force of PTC pipe piles was figured out by use of VC++language.The calculated P-S curves was conform to test results,therefore,this method is practical and feasible,In the practical projects,the existing testing information can be used to calculate P-s curve and ultimate bearing capacity of pipe piles,and this has realistic significant for replace or partially replace the in-situ load test.

关 键 词：PTC管桩 荷载传递法 载荷试验 抗拔性状 

分 类 号：TU473.12[建筑科学—结构工程]