钢筋混凝土巨型框架主次结构间桁架作用的力学分析

目前在设计、计算分析巨型结构时已注意到主次框架间的空间“桁架作用”对结构受力的有利作用,但都是以已建造好的结构在使用荷载作用下的计算模型为依据。本文通过实测数据与应用超级元-有限元耦合法计算结果相比较,对主次结构间“桁架作用”形成的时间、过程进行了分析,具有一定的理论意义和现实意义。

The mechanical analysis of the truss effect between mega-frame and sub-frames in reinforced concrete mega-structure

At present,when the mega-structure system being designed,"truss effect" between mega-frame and sub-frames is been thought increasingly.However,these arithmetic are all based on the whole structural compute models under using-load.In this paper,the time-history and engendering-history of the "truss effect" between mega-fram and sub-frames are analysed by comparing test datum and result of supper element-finite element combinative method,the conclusion will have theoretical significance and current significance.