不同内填材料生态复合墙体非线性损伤分析
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摘要
利用有限元分析软件ABAQUS建立5榀不同内填材料生态复合墙体的数值模型,对其进行非线性损伤分析,并与试验结果进行对比,研究5榀生态复合墙体的损伤场的分布状况和塑性损伤行为,分析墙体典型部位区域的损伤演化全过程,提出生态复合墙体基于性能的分灾设计方法的理念。结果表明:生态复合墙体的损伤区域主要集中在中间层砌块、肋梁和肋柱交界处以及外框柱脚和柱顶处;局部和整体损伤指数时程变化规律在变形累积效应下表现出非减特性;整体损伤指数为生态复合墙结构震后评估提供一定的理论依据;砌块、肋格及外框是生态复合墙结构的3道抗震防线。
The numerical models of the 5 ecological composite walls filled with different materials were established by finite element analysis software ABAQUS,then the nonlinear damage analysis was carried out,and the results were compared with experimental results.The damage field distribution and plastic damage behavior of 5ecological composite wall models were studied,the damage evolution process of typical region of wall was analyzed,the idea of damage-reduction design method based on the performance of ecological composite wall structure was put forward.The results show that the damaged areas of ecological composite walls are mainly concentrated in the middle layer of blocks,the junctions of ribbed beam,ribbed column and base and top of end frame;the changing laws of damage indexes of local and global are increased by the effects of accumulative deformation;global damage index provides certain theory basis for earthquake evaluation of ecological composite wall structure;block,ribbed grid and frame are three seismic fortification lines of ecological composite wall structure.
The numerical models of the 5 ecological composite walls filled with different materials were established by finite element analysis software ABAQUS,then the nonlinear damage analysis was carried out,and the results were compared with experimental results.The damage field distribution and plastic damage behavior of 5ecological composite wall models were studied,the damage evolution process of typical region of wall was analyzed,the idea of damage-reduction design method based on the performance of ecological composite wall structure was put forward.The results show that the damaged areas of ecological composite walls are mainly concentrated in the middle layer of blocks,the junctions of ribbed beam,ribbed column and base and top of end frame;the changing laws of damage indexes of local and global are increased by the effects of accumulative deformation;global damage index provides certain theory basis for earthquake evaluation of ecological composite wall structure;block,ribbed grid and frame are three seismic fortification lines of ecological composite wall structure.
引文
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[11]倪红,左熹.地铁地下车站结构的地震反应特性研究[J].北京工业大学学报,2011,37(11):1692-1698.NI Hong,ZUO Xi.Seismic Response Characteristics of Subway Station Structure[J].Journal of Beijing University of Technology,2011,37(11):1692-1698.
[12]熊耀清,姚谦峰,夏雷.密肋复合墙框格单元的损伤和耗能分析[J].沈阳建筑大学学报:自然科学版,2011,27(5):859-866.XIONG Yao-qing,YAO Qian-feng,XIA Lei.Study on Damage and Energy-dissipation of the Fundamental Element of Multi-ribbed Composite Wall[J].Journal of Shenyang Jianzhu University:Natural Science,2011,27(5):859-866.
[13]尹犟,易伟建,胡其高.结构整体抗震性能评估新方法[J].工程力学,2010,27(3):123-132.YIN Jiang,YI Wei-jian,HU Qi-gao.The New Method for Estimating Seismic Performance Structures[J].Engineering Mechanics,2010,27(3):123-132.
[14]苏原,吴晟,赵崇丰.基于分灾模式的框架结构抗震加固设计方法[J].土木工程与管理学报,2011,28(3):40-45.SU Yuan,WU Sheng,ZHAO Chong-feng.Design for Frame Structures Seismic Retrofitting Based on Damage-reduction Model[J].Journal of Civil Engineering and Management,2011,28(3):
[2]陈国新,黄炜,张荫.内填不同材料填充砌块生态复合墙体抗震性能对比[J].中南大学学报:自然科学版,2012,43(11):4491-4500.CHEN Guo-xin,HUANG Wei,ZHANG Yin.Comparison on Seismic Behavior of Ecological Composite Walls Filled with Different Materials Block[J].Journal of Central South University:Science and Technology,2012,43(11):4491-4500.
[3]陈适才,陆新征,任爱珠,等.基于纤维梁模型的火灾下多层混凝土框架非线性分析[J].建筑结构学报,2009,30(6):44-53.CHEN Shi-cai,LU Xin-zheng,REN Ai-zhu,et al.Nonlinear Analysis of Muliti-story Concrete Frame Under Fire with Fiber Beam Model[J].Journal of Building Structures,2009,30(6):44-53.
[4]张毅刚,周海涛,杨大彬.考虑材料损伤累积的空间网格结构弹塑性分析建模方法[J].世界地震工程,2011,27(2):38-44.ZHANG Yi-gang,ZHOU Hai-tao,YANG Da-bin.Modeling Method on the Elastic-plastic Analysis of Spatial Grid Structures Considering Cumulative Damage Effect[J].World Earthquake Engineering,2011,27(2):38-44.
[5]李兆霞.损伤力学及其应用[M].北京:科学出版社,2002.LI Zhao-xia.Damage Mechanics and Application[M].Beijing:Science Press,2002.
[6]曾桂香,黄慧.地震作用下的结构耗能与抗震防线设置[J].自然灾害学报,2010,19(5):115-118.ZENG Gui-xiang,HUANG Hui.Structural Energy Dissipation and Setting Up of Multiple Lines of Defence Under Seismic Action[J].Journal of Natural Disasters,2010,19(5):115-118.
[7]姚谦峰,庞乃勇,夏雷,等.基于抗震概念设计的密肋复合墙新型抗震结构体系[J].北京交通大学学报,2010,34(4):50-55.YAO Qian-feng,PANG Nai-yong,XIA Lei,et al.Development of a New Seismic Structure with Multi-ribbed Composite Wall Based on Seismic Concept Design[J].Journal of Beijing Jiaotong University,2010,34(4):50-55.
[8]郭力,李兆霞,陈志文.面向结构状态评估的多尺度损伤模型[J].东南大学学报:自然科学版,2010,40(5):1047-1051.GUO Li,LI Zhao-xia,CHEN Zhi-wen.Structural State Assessment Oriented Multi-scale Damage Model[J].Journal of Southeast University:Natural Science Edition,2010,40(5):1047-1051.
[9]李正,朱炳寅,李宁.基于ABAQUS的钢筋混凝土框架结构地震损伤分析[J].建筑结构,2011,41(增1):249-252.LI Zheng,ZHU Bing-yin,LI Ning.Seismic Damage Analysis of Reinforced Concrete Frame Structures Based on ABAQUS[J].Building Structure,2011,41(S1):249-252.
[10]左熹,杨树才,陈国兴.地铁车站结构非线性地震损伤演化规律分析[J].工程抗震与加固改造,2010,32(1):110-116.ZUO Xi,YANG Shu-cai,CHEN Guo-xing.Analysis on Evolution of Nonlinear Seismic Damage of Subway Station Structure[J].Earthquake Resistant Engineering and Retrofitting,2010,32(1):110-116.
[11]倪红,左熹.地铁地下车站结构的地震反应特性研究[J].北京工业大学学报,2011,37(11):1692-1698.NI Hong,ZUO Xi.Seismic Response Characteristics of Subway Station Structure[J].Journal of Beijing University of Technology,2011,37(11):1692-1698.
[12]熊耀清,姚谦峰,夏雷.密肋复合墙框格单元的损伤和耗能分析[J].沈阳建筑大学学报:自然科学版,2011,27(5):859-866.XIONG Yao-qing,YAO Qian-feng,XIA Lei.Study on Damage and Energy-dissipation of the Fundamental Element of Multi-ribbed Composite Wall[J].Journal of Shenyang Jianzhu University:Natural Science,2011,27(5):859-866.
[13]尹犟,易伟建,胡其高.结构整体抗震性能评估新方法[J].工程力学,2010,27(3):123-132.YIN Jiang,YI Wei-jian,HU Qi-gao.The New Method for Estimating Seismic Performance Structures[J].Engineering Mechanics,2010,27(3):123-132.
[14]苏原,吴晟,赵崇丰.基于分灾模式的框架结构抗震加固设计方法[J].土木工程与管理学报,2011,28(3):40-45.SU Yuan,WU Sheng,ZHAO Chong-feng.Design for Frame Structures Seismic Retrofitting Based on Damage-reduction Model[J].Journal of Civil Engineering and Management,2011,28(3):
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