北京海淀某钢连廊结构设计与分析  

Structural design and analysis of a steel corridor in Haidian,Beijing

作　　者：卢凯 王建立 Lu Kai;Wang Jianli(Shanghai DC-Science Data Technology Co.,Ltd.,Shanghai 200126,China;Shanghai Blue Buddy Intelligent Engineering Co.,Ltd.,Shanghai 200126,China)

机构地区：[1]上海德衡数据科技有限公司,上海200126 [2]上海蓝色帛缔智能工程有限公司,上海200126

出　　处：《山西建筑》2024年第18期54-60,共7页Shanxi Architecture

摘　　要：两栋17层的塔楼中间四层位置设置两座一端铰接一端滑动的钢结构连桥,连桥跨度分别为42 m和52 m,连桥一侧承担着幕墙荷载,连桥的钢结构形式为空间桁架结构,桁架高度为L/25,结构杆件采用H型钢,上下弦为连续钢梁,竖腹杆和斜腹杆均为刚接做法,经过恒荷载+活荷载+风荷载+温度荷载等组合工况计算可知,结构受力满足设计要求,结构变形经起拱后变形较小,满足结构变形要求。针对空间桁架结构,进行了整体稳定分析、舒适度分析、防连续倒塌分析、节点实体ABAQUS有限元分析等,结果均满足结构设计要求。无论是节点、防连续倒塌还是整体稳定,均有相对较大的设计冗余。The middle four floors of the two 17-story towers are equipped with two steel structure connecting bridges with one end hinged and one end sliding.The span of the connecting bridges is 42 m and 52 m respectively,and one side of the connecting bridges bears the curtain wall load.The steel structure of the connecting bridges is a space truss structure with the height of the trusses being L/25.The structural members are H-shaped steel,the upper and lower strings are continuous steel beams,and the vertical and oblique belly rods are rigid joints.Through the calculation of the combined conditions of constant load+live load+wind load+temperature load,it can be seen that the structural force meets the design requirements,and the deformation of the structure is small after arching,which meets the structural deformation requirements.For the space truss structure,the overall stability analysis,comfort analysis,anti-continuous collapse analysis,node entity ABAQUS finite element analysis,etc.,the results meet the structural design requirements.Both nodes and anti-continuous collapse and overall stability have relatively large design redundancy.

关 键 词：空间桁架 大跨度连桥 整体稳定分析 舒适度分析 防连续倒塌分析 ABAQUS实体有限元分析 

分 类 号：TU391[建筑科学—结构工程]