(中国建筑技术集团有限公司， 北京 100013)

［摘要］两办公楼在标高89.9m处通过空中花园走廊相互连接，结构方案采用左右塔楼分别伸出悬臂桁架的方式实现，通过悬臂桁架与办公楼整体建模计算，分析了小震、中震、大震下结构整体受力状况，使悬臂桁架在不同地震和荷载组合情况下均满足了设计控制指标。对悬臂桁架的关键节点进行了构造设计和有限元分析，对悬臂根部的楼板进行了应力分析和构造加强。

［关键词］悬臂桁架； 应力比； 有限元分析

中图分类号： TU318    文献标识码： A    文章编号： 1002-848X(2015)S2-0332-05

Structural design on cantilever truss of the office building at high level

Yue Hongyu, Yang Huijie, Jiang Jun, Cui Xiaolian

(China Building Technique Group Co., Ltd., Beijing 100013, China)

Abstract: Two office buildings were connected by an air corridor at the 89.9m elevation. Two mirrored cantilever truss structures were adopted for the air corridor connecting to the buildings. Complete structure model was formed, force conditions in frequent occurred earthquake, the design earthquake, rarely occurred earthquake were analyzed, setting target for cantilever truss is achieved in different seism and various loading combinations. Key nodes of the cantilever truss were designed and analyzed. Stress of the floor was analyzed and the construction measures were adopted.

Keywords: cantilever truss; stress ratio; finite element analysis

作者简介：岳鸿宇，硕士，工程师，一级注册结构工程师，Email:41633963@qq.com。