某大跨度煤棚结构方案选型及计算  

Structure Selection and Design of a Large-Span Dry Coal Shed Structure

作　　者：朱思宇 梁存之[1] 张建林[1] ZHU Siyu;LIANG Cunzhi;ZHANG Jianlin(China Academy of Building Research,Beijing 100013,China)

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《建筑钢结构进展》2018年第5期70-75,97,共7页Progress in Steel Building Structures

摘　　要：某干煤棚初定设计跨度为160m,长度为400m,对柱面网壳和张弦桁架两种结构方案,分别选取3种结构布置形式进行了结构计算,结合计算结果及施工难易程度和经济性对各种布置形式优缺点进行分析,最终选定50m高张弦拱桁架方案,并完成了结构设计。利用结构分析与设计软件MIDAS对整体结构进行分析验算,并选用ABAQUS软件进行动力弹塑性时程分析,结构的各项指标均满足相关规范要求。可为类似大跨度项目的选型及设计提供参考。The structure selection and design are conducted for a dry coal shed with the span of 160 mand the length of 400 m.Two types of structures including cylindrical reticulated shell and truss-string structure are taken into consideration,three structural layout for both of the two forms are calculated,and the advantages and disadvantages for each form is discussed based on the calculation results,the corresponding construction complexity and the cost.Arch truss-string in the height of 50 mis chosen as structure form and structural design is conducted.The analysis and calculation is carried out using software MIDAS,and dynamic elastic-plastic time-history analysis is performed using finite element analysis software ABAQUS.The analysis indicates that the structural performance can meet the need of codes.This paper can provide a useful reference for structure selection and design of similar large-span structures.

关 键 词：大跨度结构 干煤棚 结构选型 柱面网壳 张弦桁架 

分 类 号：TU393.3[建筑科学—结构工程]