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首页> 外文期刊>Structural Design of Tall Buildings >A QUICK METHOD FOR ESTIMATING THE LATERAL STIFFNSS OF BUILDING SYSTEMS
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A QUICK METHOD FOR ESTIMATING THE LATERAL STIFFNSS OF BUILDING SYSTEMS

机译：一种估算建筑系统侧向刚度的快速方法

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摘要

This paper presents a quick method for estimating the lateral stiffness of bui1ding structures, including regular and irregular moment frames, braced frames as well as frames with shear walls, which can be used for preliminary analysis and especially final check purposes. The method can be utilized for the calculation of the. building disp1acement at different levels under lateral loads, the contribution of various 1ateraI resisting systems to carrying the lateral 1oads, and finally the natural frequencies of the system. The basic idea of the method is based on some facts about the lateral deformation and stiffness of bui1ding structures, which make it possible to consider an equivalent single-bay single-story frame module for every story of the real multi-bay multi-story frame. This leads to a 3-diagonal or banded stiffness matrix in most cases. Even in the cases resulting in a full stiffness matrix the proposed method does not require solving a system of simultaneous equations for obtaining the lateral displacements. Several numerical examples show the higher efficiency and precision of the proposed method in comparison with the Kan method. The use of the main concepts of the proposed method for preliminary design purposes is also possible as a secondary application.
机译：本文提出了一种估算建筑结构的横向刚度的快速方法，包括规则和不规则的弯矩框架，支撑框架以及带有剪力墙的框架，这些方法可用于初步分析，尤其是最终检查。该方法可以用于计算。在侧向荷载作用下在不同水平上的建筑物位移，各种抗1ateraI系统对承载侧向1oad的贡献以及最终系统的固有频率。该方法的基本思想基于关于建筑物结构的侧向变形和刚度的一些事实，这使得有可能为真实的多层多楼层多层框架的每个楼层考虑等效的单一楼层单层框架模块。 。在大多数情况下，这将导致3对角线或带状刚度矩阵。即使在产生完整刚度矩阵的情况下，所提出的方法也不需要求解用于获得侧向位移的联立方程组。几个数值算例表明，与Kan方法相比，该方法具有更高的效率和精度。也可以将所建议方法的主要概念用于初步设计目的，作为辅助应用。

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