异形网架-下部结构独立设计与整体设计的抗震计算结果对比分析  

Comparative analysis of seismic calculation results between independent design and overall design of the special-shaped grid-substructure

作　　者：姚立新 李树林[2] YAO Lixin;LI Shulin(Jiangsu Construction Engineering Design Institute Co.,Ltd.,Nanjing 210009,China;Engineering Appraisal and Strengthening Center,Nanjing Tech University,Nanjing 211816,China)

机构地区：[1]江苏省建设工程设计院有限公司,南京210009 [2]南京工业大学工程检测鉴定与加固中心,南京211816

出　　处：《建筑结构》2021年第15期76-80,共5页Building Structure

摘　　要：异形网架在进行结构设计时通常采用钢网架屋盖与下部结构分开建模的方式,按此种方法计算得到的结果与整体建模的计算结果相比差别较大。基于此,为探究不同建模方法在异形网架设计中的准确性及适用性,以南京工业大学礼堂结构为例,采用SAP2000软件,分别建立独立计算模型、整体计算模型及钢梁等代网架整体计算模型进行抗震分析计算。计算结果表明,采用整体计算模型的计算结果,能够较全面地反映网架的受力状态及变形情况。In the structural design of special-shaped grids,the roof of steel grids and substructure are usually modeled separately,and the result calculated by this method is quite different from the result calculated by the overall modeling.Based on this,in order to explore the accuracy and applicability of different modeling methods in the design of special-shaped grid structure,taking the auditorium structure of Nanjing Tech University as an example,SAP2000 software was adopted to establish independent calculation model,overall calculation model and substitute grid overall calculation for example steel beams for seismic analysis and calculation.The calculation results show that the calculation results using the overall calculation model can reflect the stress and deformation of the grid in a more comprehensive way.

关 键 词：异形网架 独立计算模型 整体计算模型 钢梁等代网架 抗震性能 

分 类 号：TU391[建筑科学—结构工程]