刘南乡¹，郑毅敏²
    (1 同济大学建筑工程系，上海200092; 2 同济大学建筑设计研究，上海200092)

[摘要] 确定地下室顶板能否作为上部结构的嵌固端时，必须要考虑地下室与上部结构的侧向刚度比不小于2的要求；但是现行规范中没有规定计算地下室侧向刚度的有效范围。本文通过建立高层框架结构的简化模型，用SATWE分析高层建筑结构的动力、内力与变形特性，证实并探讨影响结构特性的地下室有效范围。
[关键词] 高层建筑；嵌固；侧向刚度；刚度比

    Study on the Effective Scope of Basement That Can Influence Structural Properties
    Liu Nanxiang¹, Zheng Yimin²
    (1 Department of Building Engineering, Tongji University, Shanghai  200092,China; 2 Architectural Design & Research Institute of Tongji University, Shanghai 200092, China)

Abstract: To ensure whether the superstructure can be fixed on the top slab of the basement, the ratio between the lateral rigidity of the basement and that of the upside adjacent floor structure is required to be no less than 2. However, the effective scope of the base to calculate lateral rigidity hasn't been confined in the current norm yet. Since then, according to the study of dynamic characters, inner force and deformation of a simplified high-rise frame structure model with the help of the software SATWE, the effective scope of the base that can influence the global structural properties is verified and analyzed in this paper.
Keywords: high-rise building;  build-in;  lateral rigidity;  ratio of rigidity