摘要
结合某高层模块建筑设计案例,针对模块单元楼板(即模块单元底板)采用钢结构横向密肋梁体系与钢结构横向密肋梁-平面斜撑体系两种不同构造形式,建立系列有限元分析模型,分别采用楼板平面内无限刚性假定、分块刚性假定与弹性楼板假定研究模块建筑楼板平面内刚度对结构层间位移的影响,并采用时程分析研究不同楼板平面分析假定下的模块建筑结构受力协同工作性能。研究结果表明:模块楼板平面内刚度对模块建筑整体抗侧刚度以及协同受力性能均会产生较大影响,高层建筑设计时,应结合模块单元楼板平面内刚度构造特征合理选择楼板平面内计算假定来计算模块建筑结构位移与内力。一般性结论对同类建筑结构设计具有参考价值。
Series of finite element analysis models are established based on a high-rise modular building design case which module slabs is adopted steel transverse ribbed beam or steel transverse dense rib beam-plane bracing.The effect of the in-plane stiffness of the modular building floor on the inter-story displacement of the structure is studied by using the assumption of infinite rigidity in the floor plan,the assumption of block rigidity and the assumption of elastic floor respectively.The time-history analysis is used to study the mechanical cooperative work performance of modular building structures under different floor plan analysis assumptions.The research results show that the in-plane stiffness of the module unit’s floor will have a great impact on the overall lateral stiffness and synergistic performance of the module building.In the design of high-rise buildings,the in-plane calculation assumptions of the floor should be reasonably selected according to the structural characteristics of the in-plane stiffness of the module unit’s floor to calculate the displacement and internal force of the modular building structure.The general conclusion of this paper has reference value for the structural design of similar buildings.
作者
易国辉
娄霓
张兰英
彭明英
YI Guohui;LOU Ni;ZHANG Lanying;PENG Mingying(National Residential Engineering Consultant Co.,Ltd.,Beijing 100044,China;China Architecture Design&Research Group,Beijing 100044,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S01期1866-1872,共7页
Building Structure
关键词
钢结构
模块建筑
楼板平面内刚度
计算假定
结构性能
steel structure
module building
in-plane floor stiffness
assumption for calculation
structural properties
