楼层刚度在混合结构共同作用分析中的影响

本文对空间混合结构和层状横向各向同性地基分别采用双重扩大子结构有限元法和有限压缩层法进行了多层混合结构——筏基——土介质共同作用耦合分析。 文中对一典型的六层混合结构——筏基——土介质系统(杭州某住宅)进行了考虑施工影响的共同作用分析,并与现场实测结果作了对比,获得了较满意的结果。在分析中,对常用的楼层预制空心板在共同作用分析中的影响作了深入的讨论,获得了一些有益的结论。 为在微机上实现共同作用分析,根据子结构原理,对混合结构、筏基和土介质分别编制了三个程序,可供工程设计应用。

The interactive analysis of space brick wallbuilding structure-raft-soil system considering the influence of floor slab stiffness

This paper presents the results of the study of multistorey space brick wall building structure-raft-soil interaction. The space brick wall building structure is analysed by using the double extended substructure (finite element) method and the layered isotropic foundation soil by the finite layer method.In this paper, considering the influence of sequence of construction, a typical residence is analyzed. The results compared with those of the field measurement show satisfactory approximation. The interactive analysis which takes into account the effect of the floor slab stiffness or not is discussed. Some interesting results are obtained.In order to analyse the multistorey space brick wall building structure-raft-soil interaction with microcomputers, three programs for space brick wall building structure, raft and soil are coded respectively based on the principle of sub-structure.For practical design,the method presented herein is recommended.