横向荷载作用下密肋复合墙体计算模型及承载力计算方法研究
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摘要
在横向荷载作用下,假设密肋复合墙体结构为夹层悬臂梁,提出其计算模型,根据变形协调原理对其进行受力分析,建立了结构横向位移及各组成构件承受剪力和弯矩的表达式,给出了密肋复合墙体结构在横向荷载作用下各组成构件荷载分配的比例关系,并通过内墙板的抗剪承载力公式予以验证。与试验结果对比分析表明:模型计算结果吻合较好,本文提出的横向荷载作用下计算模型及抗剪承载力计算公式具有一定精度,适合用于密肋复合墙体的计算分析。
Assuming the multi-ribbed slab structure system to be a sandwich cantilever beam under transverse loading,the structure calculation model is presented.The formulas for the displacement of the structure and the shear and the bending moment of components are given according to the deformation consistence theory,therefore the load distribution of the components in the structure,and the calculation model is verified through giving the internal composite slab shearing formula in the paper.The calculation results show that they are in accordance with the experimental results,so the calculation model and the formulas given by the paper may be used for the mechanic analysis of the structure.
Assuming the multi-ribbed slab structure system to be a sandwich cantilever beam under transverse loading,the structure calculation model is presented.The formulas for the displacement of the structure and the shear and the bending moment of components are given according to the deformation consistence theory,therefore the load distribution of the components in the structure,and the calculation model is verified through giving the internal composite slab shearing formula in the paper.The calculation results show that they are in accordance with the experimental results,so the calculation model and the formulas given by the paper may be used for the mechanic analysis of the structure.
引文
[1]姚谦峰,陈平,张荫,等.密肋壁板轻框结构节能住宅体系研究[J].工业建筑,2003,33(1):1-5.
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[4]姚谦峰,贾英杰.密肋壁板结构十二层13比例房屋模型抗震性能试验研究[J].土木工程学报,2004,37(6):1-10.
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[6]Mehrabi A B,Shing P B,Schuller M P,et al.Experimental evaluation of masonry-infilled RC frames[J].Journal of Structural Engineering(ASCE),1996,122(3):228-235.
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[8]施楚贤.砌体结构理论与设计[M].北京:中国建筑工业出版社,2003:210-217.
[9]熊立红,张敏政.设置芯柱-构造柱混凝土砌块墙体抗震剪切承载力计算[J].地震工程与工程振动,2004,24(2):82-87.
[2]陈铁,韩东生.多地震作用下密肋复合墙体抗剪承载力与可靠性指标分析[J].地震工程与工程振动,2006,26(3):142-144.
[3]姚谦峰,黄炜,田洁.密肋复合墙体受力机理及抗震性能试验研究[J].建筑结构学报,2004,25(6):67-74.
[4]姚谦峰,贾英杰.密肋壁板结构十二层13比例房屋模型抗震性能试验研究[J].土木工程学报,2004,37(6):1-10.
[5]黄炜.密肋复合墙体抗震性能及设计理论研究[D].西安:西安建筑科技大学,2004.
[6]Mehrabi A B,Shing P B,Schuller M P,et al.Experimental evaluation of masonry-infilled RC frames[J].Journal of Structural Engineering(ASCE),1996,122(3):228-235.
[7]田淑敏,于敬海.加气混凝土砌块墙体抗震剪切强度计算公式研究[J].建筑科学,2003:19(6):34-38.
[8]施楚贤.砌体结构理论与设计[M].北京:中国建筑工业出版社,2003:210-217.
[9]熊立红,张敏政.设置芯柱-构造柱混凝土砌块墙体抗震剪切承载力计算[J].地震工程与工程振动,2004,24(2):82-87.
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