轻砌块承重墙体受剪性能分析的有限元方法
|
摘要
蒸压加气混凝土砌块在我国建筑中已得到广泛的应用,但大都作为填充墙用于框架结构及混合结构的承重墙等中。根据已有实验研究的结果,研究建立轻砌块承重墙体在水平荷载作用下的有限元分析模型,通过有限元分析结果试验结果的对比,分析了误差产生原因,将蒸压加气混凝土砌块墙的破坏分为受拉破坏和受压破坏,在考虑已有的砌体抗剪强度理论的基础上提出了受拉破坏时考虑竖向正应力和高宽比的影响的抗震抗剪强度简化计算公式。
Autoclaved aerated concrete block building in our country has been a wide range of applications,but mostly as filling walls for frame structures and the load-bearing walls for masonry structures.The research,on the basis of experiment,establishes the finite element analysis model for light artificial brick load-bearing walls under horizontal load.The reasons cause the error were analyzed through comparison between the finite element analysis result and test result.The damage modes of the walls are tensile and compressive.Considering the influence of the vertical normal stress and height to width ratio,a seismic calculation method for shearing capacity of the walls which would damage in tensile mode was proposed based on the existing shearing strength calculation theory for masonry walls.
Autoclaved aerated concrete block building in our country has been a wide range of applications,but mostly as filling walls for frame structures and the load-bearing walls for masonry structures.The research,on the basis of experiment,establishes the finite element analysis model for light artificial brick load-bearing walls under horizontal load.The reasons cause the error were analyzed through comparison between the finite element analysis result and test result.The damage modes of the walls are tensile and compressive.Considering the influence of the vertical normal stress and height to width ratio,a seismic calculation method for shearing capacity of the walls which would damage in tensile mode was proposed based on the existing shearing strength calculation theory for masonry walls.
引文
[1]徐德良,刘伟庆,刘经伟,等.大开间约束砖砌体的非线性分析[J].世界地震工程,2002(6):36-41.
[2]屈成中,谢礼立.中高层砌块气体结构模态分析[J].结构工程师,2005(8):42-47.
[3]田淑明.蒸压加气混凝土砌块承重墙静力和抗震性能的研究[D].天津:天津大学,2004.
[4]刘桂秋,施楚贤,刘一彪,等.平面受力砌体的破坏准则[M]//2000年全国砌体结构学术会议论文集.北京:中国建筑工业出版社,2000.
[5]Mehrabi A B,Shing P B.Finite element modeling ofmasonry in filled RC frames[J].Journal of StructuralEngineering,1997,123(27-34):78-86.
[6]高连玉.加气混凝土应用技术论文集[M].北京:中国加气混凝土协会应用技术部,房材与应用编辑部,1999.
[7]肖建庄,王幸,胡永忠,等.再生混凝土空心砌块砌体受压分析[J].结构工程师,2006(6):62-68.
[2]屈成中,谢礼立.中高层砌块气体结构模态分析[J].结构工程师,2005(8):42-47.
[3]田淑明.蒸压加气混凝土砌块承重墙静力和抗震性能的研究[D].天津:天津大学,2004.
[4]刘桂秋,施楚贤,刘一彪,等.平面受力砌体的破坏准则[M]//2000年全国砌体结构学术会议论文集.北京:中国建筑工业出版社,2000.
[5]Mehrabi A B,Shing P B.Finite element modeling ofmasonry in filled RC frames[J].Journal of StructuralEngineering,1997,123(27-34):78-86.
[6]高连玉.加气混凝土应用技术论文集[M].北京:中国加气混凝土协会应用技术部,房材与应用编辑部,1999.
[7]肖建庄,王幸,胡永忠,等.再生混凝土空心砌块砌体受压分析[J].结构工程师,2006(6):62-68.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心