薄钢板剪力墙结构边框架柱的设计方法研究

发布时间：2018-01-19 16:13

本文关键词： 钢板剪力墙边框架柱剪切屈服面外稳定设计方法　出处：《工程力学》2014年09期 　论文类型：期刊论文

【摘要】：现行设计规范将钢板剪力墙结构边框架柱按压弯构件进行设计,并对其截面惯性矩进行了限制,该文首先介绍了钢板剪力墙结构挠曲系数及其边框架柱截面惯性矩限值的推演过程,然后通过理论分析和有限元计算研究了钢板剪力墙结构边框架柱的剪切承载力和面外稳定性,结果表明,边框架柱面内弯曲刚度不足或其剪切承载力不足,会导致钢板剪力墙结构出现"内凹"变形,影响墙板斜向对角拉力带的开展,因此,应按该文建议的方法对边框架柱的剪力设计值进行验算,避免边框架柱剪切屈服;现行设计规范对钢板剪力墙结构边框架柱截面惯性矩的限制,但未对边框架柱的面外稳定性提出要求,因此,应参照该文提供的方法,对钢板剪力墙结构的边框架柱进行面外屈曲的验算,保证其面外稳定性。
[Abstract]:In the current design code, the frame column of steel plate shear wall structure is designed according to the compression and bending member, and the moment of inertia of the section is limited. In this paper, the calculation process of the deflection coefficient of steel plate shear wall structure and the moment of inertia limit of the side frame column is introduced. Then through theoretical analysis and finite element calculation, the shear capacity and out-of-plane stability of the frame column of the steel plate shear wall structure are studied. The results show that the bending stiffness in the column of the edge frame is insufficient or the shear capacity is insufficient. It will lead to "concave" deformation of steel plate shear wall structure and influence the development of diagonal diagonal tension band of wall plate. Therefore, the shear design value of side frame column should be checked according to the method suggested in this paper. Avoid shear yield of edge frame column; The current design code limits the moment of inertia of the side frame column of steel plate shear wall structure, but does not require the out-of-plane stability of the side frame column. Therefore, the method provided in this paper should be referred to. The external buckling of the side frame column of steel plate shear wall structure is checked to ensure its stability.
【作者单位】：西安建筑科技大学土木工程学院;
【基金】：国家自然科学基金项目(51178381)
【分类号】：TU391
【正文快照】： 薄钢板剪力墙结构(SPSW)是一种性能优良的抗侧力体系,由内嵌钢板、横向边框架梁和竖向边框架柱组成,如图1所示。在地震作用下,内嵌钢板的屈曲应力很低,可忽略不计,主要由钢板屈曲后形成的对角斜向拉力带提供抗侧承载力,通过内嵌钢板斜向拉力带的受拉屈服耗散地震能量[1]。根据

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