钢筋混凝土路面抗爆性能研究Research on Blast-resistant Capacity of RC Pavement
许三罗
摘要(Abstract)：
钢筋混凝土路面在爆炸荷载作用下会发生开裂和沉陷。为了研究路面的损坏情况,利用有限元分析软件LS-DYNA对路面上方爆炸冲击波造成的路面破坏程度和破坏模式进行了模拟。首先,通过对混凝土的光滑面帽盖材料模型在单轴和三轴应力状态下进行模拟以验证材料模型的力学性能,并数值计算了爆炸荷载下混凝土板的响应情况。数值模拟结果显示连续面帽盖模型能够很好地模拟出混凝土的力学性能,数值模拟得到混凝土路面的破坏模式能够反映出实验结果。
关键词(KeyWords)： 爆炸荷载;LS-DYNA;钢筋混凝土路面;光滑面帽盖模型;有限元
基金项目(Foundation):
作者(Author): 许三罗
参考文献(References)：
- [1]Bibiana Maria Luccionia,Mariela Luege.Concrete Pave-ment Slab under Blast Loads[J].International Journal ofImpact Engineering,2006(32):1 248-1 266.
- [2]Livermore Software Technology Corporation.LS-DYNAKeyword User′s Manual Version 971[M].Livermore:Livermore Software Technology Corporation,2007,5.
- [3]江见鲸,叶列平,陆新征.混凝土结构有限元分析[M].北京:清华大学出版社,2004,1.
- [4]Karma Yonten,Majid T.Manzari.An Evaluation of Consti-tutive Models of Concrete in LS-DYNA Finite ElementCode[J].15thASCE Engineering Mechanics Conference[C].New York:Columbia University,2002:2-5.
- [5]James S.Davidson,Sushant Sudame.Development ofComputational Model and Input Sensitivity Study of Poly-mer Reinforced Concrete Masonry Walls Subjected toBlast[R].Alabama:University of Alabama at Birming-ham Department of Civil and Environmental Engineering,2004,12.
- [6]Livermore Software Technology Corporation.LS-DYNATheory Manual[M].Livermore:Livermore Software Tech-nology Corporation,2006,5.
- [7]杨冬梅,王晓明.混凝土中爆炸数值仿真算法研究[J].爆炸与冲击,2005,25(6):569-572.
- [8]Yvonne D.Murray.User′s Manual for LS-DYNA ConcreteMaterial Model 159[R].U.S.Department of Transporta-tion Federal Highway Administration,2007,5.
- [9]Yvonne D.Murray.Evaluation of LS-DYNA Concrete Ma-terial Model 159[R].U.S.Department of TransportationFederal Highway Administration,2007,5.