多筒多层灵活住宅结构体系的塑性内力重分配
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摘要
多层大开间灵活住宅结构体系的试验研究,为结构设计提供了依据。研究表明,筒体与组合墙这两种不同类型的抗侧力结构的刚度退化不同步,它们之间的内力分配不断变化,所受到的最大内力处在不同的工作阶段。这一特点对结构设计具有重要意义。 这种多重抗侧力体系的塑性内力重分配过程,很难从试验直接量测到。这也是当今国际上从事这方面研究的科学工作者所面临的一个难题。本文对有关试验结果作了进一步的研究分析,并使用有限元手段研究筒体的实测受力,从而揭示其内力重分配过程。最后,根据理论分析并结合实验结果,提出可用于设计的简化计算方法。
It is difficult to measure shear redistribution in nonlinear stage between R. C. tubes (R. C. shafts)and composed masonry walls in a structure,which is generally analysed with various nonlinear models. However, the redistribution is too complex to model because that the stiffness degradation of different lateral structurs have different characters. This paper presents the inner forces redistribution according to the test, and gives simplified method for design, in which , a stiffness degradation factor is studied theoretically and combined with test results.
It is difficult to measure shear redistribution in nonlinear stage between R. C. tubes (R. C. shafts)and composed masonry walls in a structure,which is generally analysed with various nonlinear models. However, the redistribution is too complex to model because that the stiffness degradation of different lateral structurs have different characters. This paper presents the inner forces redistribution according to the test, and gives simplified method for design, in which , a stiffness degradation factor is studied theoretically and combined with test results.
引文
[1] 方鄂华、郝锐坤,大开间灵活分隔住宅结构研究,《建筑技术》,1992． 12．
[2] 王绍豪、国玉萃,大开间灵活住宅结构设计,《建筑技术》,1992． 12。
[3] 赵作舟、高向宇、方鄂华,多层大开间少内纵墙住宅结构模型试验研究,《建筑结构学报》1994． 6。
[4] 刘大海、杨翠如、钟锡根,《高层建筑抗震设计》,中国建筑工业出版社,1993． 5．
[5] 杨翠如、钟锡根、刘大海,抗震墙刚度退化对高层框--墙结构地震内力的影响,《土木工程学报》,21卷,1期,1988．
[2] 王绍豪、国玉萃,大开间灵活住宅结构设计,《建筑技术》,1992． 12。
[3] 赵作舟、高向宇、方鄂华,多层大开间少内纵墙住宅结构模型试验研究,《建筑结构学报》1994． 6。
[4] 刘大海、杨翠如、钟锡根,《高层建筑抗震设计》,中国建筑工业出版社,1993． 5．
[5] 杨翠如、钟锡根、刘大海,抗震墙刚度退化对高层框--墙结构地震内力的影响,《土木工程学报》,21卷,1期,1988．
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