埋入式连续桩板结构温度效应计算方法  

Calculation Method for Embedded Continuous Pile-Board Structure under Thermal Stresses

作　　者：苏谦[1] 白皓[1] 黄俊杰[1] 李星[1] 

机构地区：[1]西南交通大学高速铁路线路工程教育部重点实验室,四川成都610031

出　　处：《西南交通大学学报》2012年第2期181-186,共6页Journal of Southwest Jiaotong University

基　　金：铁道部科技研究开发计划重点课题(2011G021-H);中央高校基本科研业务费专项资金资助项目(SWJTU11ZT03)

摘　　要：为探讨埋入式连续桩板结构温度效应的计算方法,在分析超长框架结构温度作用计算方法的基础上,提出了埋入式连续桩板结构温度效应分区的概念,建立了温度作用计算模型;引入变形协调原理,同时考虑板-填料、桩-土相互作用特性以及钢筋混凝土桩列的不同弹塑性性质,导出了埋入式连续桩板结构温度力的计算公式.理论计算和实测结果表明,纵向位移的理论值是实测值的1.2倍,用此计算方法分析埋入式连续桩板结构的温度效应是可行的.In order to probe into the method to calculate the temperature effect of an embedded continuous pile-board structure,a concept of temperature effect-based zoning was put forward and a model for the temperature effect was established after analyzing the calculation method for the temperature effect of over-long frame structures.Based on the deformation compatibility principle and considering slab-filler and pile-soil interactions and the elastic-plastic properties of reinforced concrete piles,a calculation formula for temperature force was induced.The method was used in a specific engineering case.The result shows that the calculated value of longitudinal displacement is 1.2 times of the measured value,indicating this method of analyzing the temperature effect of an embedded continuous pile-board structure is effective.

关 键 词：埋入式连续桩板结构 温度效应分区 计算方法 现场验证试验 

分 类 号：TD475[矿业工程—矿山机电]