地下室顶板开洞对嵌固能力的影响分析  

Influence Analysis of Openings on the Fixed Ability of Basement Top Slabs

作　　者：韦恒[1] 英明[2] 熊海贝[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092 [2]上海建筑设计研究院有限公司,上海200041

出　　处：《结构工程师》2014年第2期37-44,共8页Structural Engineers

摘　　要：基于上海某工程实例,探讨了地下室顶板不同尺寸及位置的开洞对嵌固能力的影响。以洞口尺寸及位置为变量分别建立模型,分析了小震作用下塔楼周期、顶点位移的变化规律以及地下室顶板对塔楼竖向构件侧移的约束能力及水平传力性能。通过对比不同开洞情况下,塔楼在大震作用下的破坏模式,提出了合理的洞口尺寸及位置,供类似工程参考。Based on a high-rise building in Shanghai, the influence of openings with different size and loca- tion on fixed ability of basement top slab was investigated in this paper. For the purpose of obtaining the influence of openings, ten models were established with variables of opening size and location. They were analyzed to acquire natural periods and roof displacements under frequently occurred earthquake intensity. Furthermore, comparisons were made concerning lateral displacement constraint and horizontal force transmission which are influenced by different opening situations. Through failure mode analysis of the tower under rare earthquakes, the reasonable size and location of openings were proposed, which can be referenced in similar projects.

关 键 词：地下室顶板 洞口尺寸 洞口位置 嵌固能力 

分 类 号：TU93[建筑科学—结构工程]