Journal of Shanghai Jiao Tong University ›› 2021, Vol. 55 ›› Issue (8): 968-975.doi: 10.16183/j.cnki.jsjtu.2019.249

Special Issue: 《上海交通大学学报》2021年“交通运输工程”专题 《上海交通大学学报》2021年12期专题汇总专辑

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Structural Impact Dynamic Response Characteristics of Offshore Platform Blast Wall in High Temperature Environment

WANG Rui, XUE Hongxiang(), YUAN Yuchao, TANG Wenyong   

  1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2019-08-29 Online:2021-08-28 Published:2021-08-31
  • Contact: XUE Hongxiang


The blast wall is an important protection facility for offshore platforms, whose anti-explosion performance needs to be focused on. Based on the nonlinear finite element method, the structural dynamic response of the blast wall under the explosion at normal temperature was studied. The applicability of the quasi-static and dynamic algorithms was compared with the experimental data, and the structural impact deformation forms at room temperature were analyzed. Considering the effects of high temperature on materials and structures, the structural dynamic response characteristics of the blast wall were analyzed. The study shows that the high temperature has a significant aggravating effect on structural response. That is, given the load level, the maximum displacement can reach 5 times of that at normal temperature. Under the impact of normal temperature load, the structural strain is elastic with no permanent deformation or with small deformation, but it may aggravate to huge permanent deformation at a high temperature. The effect of high temperature will change the response pattern of the structure. This research can provide reference for the design of blast wall.

Key words: blast wall, high temperature, explosion, impact, structural dynamic response

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