Behaviour of high-strength concrete filled steel tubes under transverse impact loading

被引：196

作者：

Han, Lin-Hai ^{[1
]}

Hou, Chuan-Chuan ^{[1
]}

Zhao, Xiao-Ling ^{[2
]}

Rasmussen, Kim J. R. ^{[3
]}

机构：

[1] Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China

[2] Monash Univ, Dept Civil Engn, Clayton, Vic 3800, Australia

[3] Univ Sydney, Sch Civil Engn, Sydney, NSW 2006, Australia

来源：

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | 2014年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Concrete filled steel tube (CFST); Impact; Finite element analysis (FEA); Full-range analysis; Flexural capacity; FLEXURAL BEHAVIOR; LATERAL IMPACTS; COLUMNS; HOLLOW;

D O I：

10.1016/j.jcsr.2013.09.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a set of new test data for high strength concrete filled steel tubular (CFST) members subjected to transverse impact. A total of 12 circular CFST specimens and reference hollow steel tubes were tested in a drop hammer rig. The cube strength of the concrete used for the CFST members is up to 75 MPa. A finite element analysis (FEA) model is established to predict the impact behaviour of high strength CFST members, and the accuracy of which is then verified by the presented test results. Full-range analyses of the behaviour of CFST members under impact loading are then carried out using the FEA model to produce the force state, internal force distribution, and flexural capacity. Finally, a simplified model is obtained based on a parametric analysis to calculate the flexural capacity of CFST members under impact load. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：25 / 39

页数：15

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