Research on Interface bond strength and bond-slip constitutive models for rectangular CFST columns

被引：0

作者：

Qu, Xiushu ^{[1
]}

Liu, Qi ^{[1
]}

机构：

[1] Beijing Univ Civil Engn & Architecture, Sch Civil & Transportat Engn, Beijing 100044, Peoples R China

来源：

PROCEEDINGS OF THE 2017 GLOBAL CONFERENCE ON MECHANICS AND CIVIL ENGINEERING (GCMCE 2017) | 2017年 / 132卷

关键词：

rectangular concrete-filled cold-formed steel tubular; interface bond strength; T-S constitutive models;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

More recent studies have suggested that parameters such as cross-section type, cross-sectional dimensions, interface length, concrete compressive strength, slenderness ratio, steel strength, roughness of interface, concrete casting style, and concrete curing conditions potentially have some influence on the value of the bond strength. In this paper, a brief review of previous research and literature that are pertinent to the present study of the interface bond strength and T-S constitutive models are presented first. According to the previous laboratory testing results, three equations are designed to calculated are average elastic limit bond strength, average ultimate bond strength and average post-peak residual bond strength, respectively. Moreover, a new simplified four-part model has been proposed to describe the T-S response.

引用

页码：130 / 138

页数：9