文献类型：期刊文献

中文题名：土与混凝土接触面反向单剪本构模型

英文题名：Constitutive Model for Negative Simple-sheared Soil-concrete Interface

作者：王伟[1,2];卢廷浩[2];周爱兆[3]

机构：[1]绍兴文理学院土木工程系;[2]河海大学岩土工程科学研究所;[3]江苏科技大学土木工程与建筑学院

年份：2011

卷号：33

期号：1

起止页码：59

中文期刊名：土木建筑与环境工程

外文期刊名：Journal of Civil,Architectural & Environmental Engineering

收录：CSTPCD、、EI(收录号：20111413898433)、Scopus(收录号：2-s2.0-79953653752)、CSCD2011_2012、北大核心2008、北大核心、CSCD

基金：浙江省自然科学基金项目(Y1080839);国家自然科学基金委员会(50639050)

语种：中文

中文关键词：土与混凝土接触面;本构模型;反向剪切;临界正向剪切比;含水率

外文关键词：soil-concrete interface; constitutive law; negative shear; critical positive shear ratio; water content

中文摘要：土与混凝土接触面的反向剪切性质是土木工程中一个重要的课题。根据接触面反向单剪试验结果,定量分析了正向剪切历史对不同含水率接触面反向抗剪强度、摩擦角、黏聚力等因素的影响,给出了相关的经验公式。提出了接触面临界正向剪切比的概念。根据改进的应力应变方程,建立了接触面正反向剪切模量公式,其包含了10个土体参数,均可通过接触面试验求得。确定了该公式中各参数的取值方法,推荐了初步的取值范围。进行了不同正向剪切比情况下的接触面剪切应力应变模拟,得到良好的模拟效果。研究成果可供相关的工程设计参考。

外文摘要：Negative shear property of soil-concrete interface is one critical issue in civil engineering.According to negative simple shear tests of soil-concrete interfaces with various water content,quantitative analysis on changes of shear strength,friction angle and cohesion force of negative sheared interface against positive shear experience were conducted.Several empirical formulae were proposed for above changes,and critical positive shear ratio was put forward.Based on improved stress-strain equation,mathematical model for tangent modulus of negative sheared soil-concrete interface was established.This new model consists ten parameters which can be determined by simple shear test.Process for determining these ten parameters was presented,and empirical values of them were obtained.Simulations for stress-strain curves of soil-concrete interface were carried out,and good ability of the model was found.