T型地下连续墙测试中弯矩的计算方法推导  

Derivation of Bending Moment Calculation Method in Testing of T-type Diaphragm Concrete Wall

作　　者：李沛[1] Li Pei(CCCC Tianjin Port Engineering Institute Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]中交天津港湾工程研究院有限公司,天津300222

出　　处：《港工技术》2020年第6期40-44,共5页Port Engineering Technology

摘　　要：地下连续墙自发明至今已将近百年,作为重要的地下隐蔽工程,其受力状态设计一直是结构设计的重要内容。地下连续墙的弯矩是结构设计与计算的重要参数,然而,弯矩不能被直接测试得到,需要通过现场实测相关参数并代入相应的计算方法中反算得到。本文中,分近似弹性阶段、弹塑性阶段和破坏阶段三阶段分别推导得T型地下连续墙弯矩的计算方法,为通过现场原型测试校核弯矩设计准确与否提供有效手段。The diaphragm concrete wall has been invented for nearly a hundred years.As an important underground concealed works,the corresponding stress state design has always been an important part of structural design.The bending moment of diaphragm concrete wall is a key parameter in the structural design and calculation.However,the bending moment cannot be measured directly,which can be obtained by measuring relevant parameters in the field and substituting them in the corresponding calculation formula.The calculating method of bending moment of T-type diaphragm concrete wall is deduced respectively for the three stages such as approximate elastic stage,elastic-plastic stage and failure stage,which will be effective means to verify the accuracy of bending moment design through field test.

关 键 词：T型地下连续墙 弯矩 反算 计算方法 

分 类 号：TU470[建筑科学—结构工程]