导弹打击位置对箱梁侵爆毁伤的影响规律分析
An Analysis of the Effect of the Missile Stricken Position on the Damage of a Box Girder
  
中文关键词:钢筋混凝土箱梁  侵爆毁伤  打击位置
英文关键词:reinforced concrete box girder  explosive damage  missile stricken position
基金项目:
作者单位
李海超 陆军军事交通学院国防交通系天津300161 
梅迪 陆军军事交通学院五大队研究生队,天津300161 
张艳萍 陆军军事交通学院国防交通系天津300161 
常健 陆军军事交通学院军事交通运输研究所,天津300161 
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中文摘要:
      为了分析导弹不同打击位置对箱梁侵爆毁伤的影响,从而为桥梁设计、建造贯彻国防要求提供参考,以提高钢筋混凝土箱梁的抗打击能力。利用数值仿真软件AUTODYN对钢筋混凝土箱梁在侵爆作用下的毁伤进行模拟,探究导弹在不同打击位置下箱梁的侵爆毁伤程度。结果表明:导弹不同打击位置下的箱梁侵爆毁伤程度差异较大,当导弹打击顶板与腹板时箱梁毁伤程度较重。建议在箱梁设计中,重点提高箱梁顶板与腹板抗侵爆能力,能够有效减小箱梁侵爆毁伤程度。
英文摘要:
      In order to analyze the impact of different missile stricken positions on the damage to a box girder so as to provide a useful reference for the design and construction of bridges to implement the requirements in national defense, and to improve the anti strike capability of reinforced concrete box girders, the numerical simulation software AUTODYN is used in the present paper to simulate the damage of a reinforced concrete box girder under the action of penetration and explosion to explore the degree of the damage of the penetration and explosion to the box girder with different missile stricken positions. The results show that the degree of the damage to the lower box girder at different missile stricken positions varies greatly, and the damage to the box girder is more serious when the missile hits the roof and the web. Therefore, it is suggested that in the design of the box girder, the top and the web of the box girder should be improved to reduce the degree of the damage to the box girder.
李海超,梅迪,张艳萍,常健.导弹打击位置对箱梁侵爆毁伤的影响规律分析[J].国防交通工程与技术,2019,17(5):20~23,11
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