Numerical and Experimental Investigations on the Blast-Resistant Properties of Arched RC Blast Doors

Author:

Li Chen1,Qin Fang1,Ya-Dong Zhang1,Yi Zhang1,Jun-Yu Fan1

Affiliation:

1. PLA University of Science and Technology, Jiangsu 210007, China

Abstract

In order to have a clear understanding of the blast-resistant properties of blast doors, full scale in-situ tests of an arched reinforced concrete blast door subjected to explosions outside a tunnel entrance were carried out. An elaborative three-dimensional FE analysis was conducted to numerically evaluate the structural response of the blast door. The blast loads applied on the door in the FE analysis were simulated by using the FE program AUTODYN and simplified to be triangular loads without consideration of the rising time. The dynamic responses of the tested blast door under single and multiple blast loads were analyzed by using the FE program ABAQUS which adopted a rate-sensitive material model combined with a concrete plastic damage model. The results of numerical simulation were compared with the experimental data. It is demonstrated that the strain-rate effects and nonlinear contacts between the door leaf and the doorframe steel plate as well as the enclaves and the steel tube have considerable influence on the responses of the arched reinforced concrete blast door. The mid-span displacement of the door increased with the increase of the number of explosions. The blast door finally failed after eight explosions.

Publisher

SAGE Publications

Subject

Mechanics of Materials,Safety, Risk, Reliability and Quality,Building and Construction

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3