米立方三种树状结构方案比较分析  

Comparison and analysis of three tree structure schemes of Meters Cube

作　　者：张倩[1,2] 陈志华[1,2] 王小盾[1,2] 刘红波[1,2] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]天津市土木工程结构及新材料重点实验室,天津300072

出　　处：《建筑结构》2014年第7期65-70,共6页Building Structure

基　　金：大型特殊结构布置条件下的钢结构工程设计;施工及控制关键技术研究(11ZCZDSF04800)

摘　　要：以天津天山海世界米立方项目为工程背景,重点研究树状结构分杈级数对结构整体性能的影响。介绍了树状结构的二级分杈方案、一级分杈方案和普通柱方案,比较了三种方案在用钢量、支座反力、杆件内力、节点位移和自振频率方面的结构性能,得出结论:相比采用一级分杈方案而言,采用二级分杈方案可有效地减小杆件内力和节点最大竖向位移,有分杈方案结构的力学性能明显优于普通柱方案,说明树状结构的应用有利于结构的整体受力。The effect of different level branching of tree structures on the overall structure performance was studied based on Tianjin Tianshan Sea World Meters Cube project. Two-level branching scheme, one-level branching scheme and ordinary column scheme of tree structures were described and structure performance of three schemes were compared such as steel consumption, supporting reaction force, member internal force, node displacement and natural frequency. Conclusions are that two-level branching scheme can effectively reduce member internal force and node maximum vertical displacement compared to one-level branching scheme. The mechanical properties of the structure with branching scheme are much better than that with ordinary column scheme, and it indicates that the application of tree structure is conducive to its overall performance.

关 键 词：树状结构 方案比较 二级分权 一级分权 普通柱 

分 类 号：TU393.3[建筑科学—结构工程] TU318.1