Numerical Simulation of FRP-Concrete-Steel Double-Skin Tubular Column Under Lateral Impact Loading

被引：0

作者：

Wang, Weiqiang ^{[1
]}

Wu, Chengqing ^{[1
]}

机构：

[1] Univ Technol Sydney, Ctr Built Infrastruct Res, Sch Civil & Environm Engn, Ultimo, NSW 2007, Australia

来源：

PROCEEDINGS OF THE 25TH AUSTRALASIAN CONFERENCE ON MECHANICS OF STRUCTURES AND MATERIALS (ACMSM25) | 2020年 / 37卷

关键词：

FRP tube; Steel tube; Concrete; DSTC; Impact; Numerical simulation; BEHAVIOR;

D O I：

10.1007/978-981-13-7603-0_46

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Hybrid fiber reinforced polymer (FRP)-concrete-steel double-skin tubular column (DSTC) is a new form of composite column that consists of an outer FRP tube and an inner steel tube, with inner space filled with concrete. This study presents the first numerical investigation on the behavior of hybrid DSTC under lateral impact loading usingLS-DYNA. The numerical models of hybrid DSTC were first developed and then verified by using existing test results. Afterwards, parametric analyses were conducted to investigate the influences of impactor shape and impact energy on the lateral impact behavior of hybrid DSTC. The impact force-time history and midspan deflection-time history of hybrid DSTC were extracted from the simulation results. The simulation results show that hybrid DSTC behave in a very ductile manner under lateral impact loading. The impact energy can significantly influence the impact behavior of hybrid DSTC. However, the influence of impactor shape is insignificant.

引用

页码：467 / 476

页数：10

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