地下结构抗冲击波作用层裂钢板效果数值模拟
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摘要
利用ANSYS/LS-DYNA软件,对混凝土结构底面是否固定钢板进行了模拟。通过对两种情况下的结果分析,揭示了混凝土不同位置处单元σy值的时程规律,得到了在计算时间内钢板的存在能够有效地减小相邻混凝土单元的最大拉应力,并延长其出现时间;同时得到了在类似研究的工程结构中,边界效应对混凝土层裂现象无影响。对相关工程的设计、施工具有参考价值。
The concrete structure with or without steel panel is simulated by the software ANSYS/LS-DYNA.Based on the analysis of the results of these two cases,the rule of element'sσyat different position is presented,and it shows that the steel panel can effectively reduce the maximal σy of the element adjacent to the steel panel,and can postpone the arriving time within the simulation time.At the same time,the simulation reveals that the boundary effects don't affect the spalling in the similar structure presented in this paper.Simulative results will provide reference for the design and construction of related projects.
The concrete structure with or without steel panel is simulated by the software ANSYS/LS-DYNA.Based on the analysis of the results of these two cases,the rule of element'sσyat different position is presented,and it shows that the steel panel can effectively reduce the maximal σy of the element adjacent to the steel panel,and can postpone the arriving time within the simulation time.At the same time,the simulation reveals that the boundary effects don't affect the spalling in the similar structure presented in this paper.Simulative results will provide reference for the design and construction of related projects.
引文
[1]钱七虎.阿富汗战争和伊拉克战争特点、美军事革命新进展及防护工程发展的新思考——“发达国家和发展中国家的军事技术形态出现了又一轮时代差”[Z].中国土木工程学会防护工程学会第九次学术年会专题报告.长春,2004.(QIAN Qihu.Charactersof Afganistan War and Iraq War,New Advance of Mili-tary Revolution and New Thinking of Protective Engi-neering Development in America.A new Epoch Differ-ence between Military Technology Forms of Developedand Developing Countries[Z]Special Report on 9thSymposium of Protection Engineering Society of ChinaCivil Engineering Society,Changchun,2004.(in Chi-nese))
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[3]亨利奇J.爆炸动力学及其应用[M].北京:科学出版社,1987.(Henrich J.Explosion Dynamics and ItsApplication[M].Beijing:Science Press.1987.(inChinese))
[4]杨林德,李文艺,祝龙根等.上海市地铁区间隧道和车站的地震灾害防止对策研究[R].同济大学,上海防灾救灾研究所,1999,6.(YANG Linde,LI Wenyi,ZHU Longgen et al.Study on Countermeasures for Seis-mic Disaster Prevention of Interval Tunnel and Station ofShanghai Metro[R].Tongji University,Shanghai Re-search Institute of Disaster Prevention and Rescue,1999,6.(in Chinese))
[5]北京理工软件技术开发有限公司.ANYSYS/LS—DY-NA技术应用报告[RJ.北京;北京理工软件技术开发有限公司,2002.(Beijing Engineering Software Tech-nology Co.,Ltd..ANSYS/LS—DYNATechnology Re-port[R].Beijing:Beijing Engineering Software Tech-nology Co.,Ltd.,2002.(in Chinese)).
[6]Holmquist TJ,Johnson G R.A Computational Consti-tutive Model for Concrete Subjected to Large Strains,High Strain Rates and High Pressure[A].Quebec:14th International Symposium on Ballistics[C].1993,591-600.
[7]Livermore Software Technology Corporation.LS-DYNAKeyword User’s Manual[M](960v1 and 960v2).Liv-ermore,2001.
[8]Livermore Software Technology Corporation.LS-DYNAKeyword User’s Manual[M](970v).Livermore,2003
[9]《美国空军防护工程分析与设计手册》[M].总参第四研究所.译1983,16-23.(Handbook of Analysisand Design of Protective Projects for U.S Air Force[M].Translated by the 4th Research Institute of Gen-eral Staff,1983,16-23.(in Chinese))
[10]柳锦春,方秦.爆炸荷载作用下钢板混凝土组合结构的波动分析[J].防护工程.(LIU Jinchun,FANGQin.Wave Analysis of Steel Plate-Concrete CombinedStructure under Explosion Load[J].Protective Engi-neering.(in Chinese))
[11]叶双序,爆炸作用基础[M].南京:解放军理工大学出版社,2001.(YE Shuangxu,Principle of ExplosionEffect[M].Nanjing:PLA University of Science andTechnology Press,2001.(in Chinese))
[12]季倩倩.地铁车站结构振动台模型试验研究[D]:[博士学位论文].上海:同济大学,2002.(JI Qian-qian.Experimental Study of Metro Station Structure onVibration Table Model[D].Doctorate dissertation.Shanghai:Tongji University,2002.(in Chinese))
[2]李秀地,郑颖人,徐干成.脉冲荷载作用下地下结构抗层裂钢板应用研究[J].地下空间与工程学报,2006,1(2),93.(LI Xiudi,ZHENG Yingren,XUGancheng.Study on the Application of Spall-ResistantSteel Panels for Underground Structure under ImpulsiveLoads[J].Chinese Journal of Underground Space andEngineering.2006,1(2),93.(in Chinese))
[3]亨利奇J.爆炸动力学及其应用[M].北京:科学出版社,1987.(Henrich J.Explosion Dynamics and ItsApplication[M].Beijing:Science Press.1987.(inChinese))
[4]杨林德,李文艺,祝龙根等.上海市地铁区间隧道和车站的地震灾害防止对策研究[R].同济大学,上海防灾救灾研究所,1999,6.(YANG Linde,LI Wenyi,ZHU Longgen et al.Study on Countermeasures for Seis-mic Disaster Prevention of Interval Tunnel and Station ofShanghai Metro[R].Tongji University,Shanghai Re-search Institute of Disaster Prevention and Rescue,1999,6.(in Chinese))
[5]北京理工软件技术开发有限公司.ANYSYS/LS—DY-NA技术应用报告[RJ.北京;北京理工软件技术开发有限公司,2002.(Beijing Engineering Software Tech-nology Co.,Ltd..ANSYS/LS—DYNATechnology Re-port[R].Beijing:Beijing Engineering Software Tech-nology Co.,Ltd.,2002.(in Chinese)).
[6]Holmquist TJ,Johnson G R.A Computational Consti-tutive Model for Concrete Subjected to Large Strains,High Strain Rates and High Pressure[A].Quebec:14th International Symposium on Ballistics[C].1993,591-600.
[7]Livermore Software Technology Corporation.LS-DYNAKeyword User’s Manual[M](960v1 and 960v2).Liv-ermore,2001.
[8]Livermore Software Technology Corporation.LS-DYNAKeyword User’s Manual[M](970v).Livermore,2003
[9]《美国空军防护工程分析与设计手册》[M].总参第四研究所.译1983,16-23.(Handbook of Analysisand Design of Protective Projects for U.S Air Force[M].Translated by the 4th Research Institute of Gen-eral Staff,1983,16-23.(in Chinese))
[10]柳锦春,方秦.爆炸荷载作用下钢板混凝土组合结构的波动分析[J].防护工程.(LIU Jinchun,FANGQin.Wave Analysis of Steel Plate-Concrete CombinedStructure under Explosion Load[J].Protective Engi-neering.(in Chinese))
[11]叶双序,爆炸作用基础[M].南京:解放军理工大学出版社,2001.(YE Shuangxu,Principle of ExplosionEffect[M].Nanjing:PLA University of Science andTechnology Press,2001.(in Chinese))
[12]季倩倩.地铁车站结构振动台模型试验研究[D]:[博士学位论文].上海:同济大学,2002.(JI Qian-qian.Experimental Study of Metro Station Structure onVibration Table Model[D].Doctorate dissertation.Shanghai:Tongji University,2002.(in Chinese))
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