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T形短肢剪力墙的变形杆系广义墙元模型
  • 期刊名称:水利与建筑工程学报. 6(2): 5-7 . 2008.06
  • 时间:0
  • 分类:TU32[建筑科学—结构工程]
  • 作者机构:[1]西安建筑科技大学土木工程学院,陕西西安710055
  • 相关基金:资助项目:国家自然科学基金(10572107)
  • 相关项目:短肢剪力墙新型结构力学模型和非线性分析理论的研究
中文摘要:

研究短肢剪力墙的力学模型和计算方法,根据T形短肢剪力墙的受力和变形特点,提出一种10自由度的变形杆系广义墙元模型。考虑翼缘墙与腹板墙的空间耦合作用,运用虚功原理建立T形短肢剪力墙的单元刚度矩阵。为短肢剪力墙结构空间弹塑性分析提供了新的思路,这一宏模型摒弃了现有宏模型中平面假定的限制,不仅可以反映中和轴的移动,而且还可以反映初始截面的剪切翘曲,并且编制了弹塑性时程分析程序,并输入三种不同的地震动进行了算例分析。

英文摘要:

The mechanical models and calculation methods of a short-leg shear wall are researched. According to the mechanical and deformation properties of a T-shaped short-leg shear wall, a generalized wall element model for deformed bars with ten degrees of freedom is put forward. Then the stiffness matrix of the T-shaped short-leg shear wall is derived by means of the virtual work principle, and the conceptual design is provided to the elastoplastic analysis on structure of the short-leg shear wall. This scheme reflects not only the shift of the neutral axis, but also the shear buckling of the cross section, and thus it is free of the restriction of plane assumption in existing models, and the program of the elastoplastic time history analysis is developed. Finally, an example is calculated by inputting three kinds of the earthquake resistance performance.

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