大跨度干煤棚项目结构分析计算
浙江中南绿建科技集团有限公司, 浙江杭州 310000
| 摘 要： | 武钢集团昆明钢铁股份有限公司推进供给侧结构性改革实施环保搬迁转型升级项目综合原料场工程矿石料场（A改B）网壳结构工程位于云南省昆明市安宁市草铺镇昆钢新区，长度780米，高度50米，跨度为147m（大于120m），根据《建筑抗震设计规范》及《超限高层建筑工程抗震设防专项审查技术要点》的规定，属于超限大跨空间结构，需要进行工程抗震设防专项审查。本项目结构分析采用了SAP2000、MST2020、MIDAS Gen三种软件进行计算分析，并分别建立了单体模型和整体模型两种情况进行了包络分析。通过线弹性分析、反应谱小震分析、反应谱中震分析、小震弹性时程分析、大震动力弹塑性分析来分析计算网壳变形及杆件应力情况。通过一系列的结构分析及构造措施，来确保网壳及下部混凝土短柱各项性能指标能满足规范要求。 |
| 关 键 词： | 钢结构网壳; 结构分析; 大震分析 |
| DOI： | 10.57237/j.cear.2023.01.002 |
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收稿日期: 2023-01-16
接受日期: 2023-03-07
在线出版日期: 2023-03-28
Analysis and Calculation of Large Span Dry-Coal Shed
Zhejiang Zhongnan Green Construction Co., Ltd., Hangzhou 310000, China
| Abstract: | The project of Wuhan Group Kunming Iron and Steel Co., Ltd., Promote the supply side structural reform and implement the special upgrading project of environment comprehensive raw material yard project ore yard (A to B) reticulated shell structure Located in Kunming Steel New Area, Cao pu Town, Anning City, Kunming City, Yunnan Province, 780m long, 50m high, the span is 147m (more than 120m), According to «Code for Seismic Design of Buildings» and «Technical points of special review on seismic fortification of high-rise buildings beyond the limit», it belongs to the out of gauge large-span space structure, Special review of engineering seismic fortification is required. The structural analysis of the project adopts SAP2000, MST2020, MIDAS Gen three kinds of software for calculation and analysis, And the individual model and the whole model are established respectively, Envelope analysis is carried out for two cases. Through linear elastic analysis, response spectrum small earthquake analysis, Medium earthquake analysis of response spectrum, elastic time-history analysis of small earthquakes, dynamic elastoplastic analysis of large earthquakes to analyze and calculate the deformation of latticed shells and the stress of membersl. Through a series of structural analysis and structural measures, To ensure that the reticulated shell and the lower part are coagulated on the short column and all performance indicators can meet the specification requirements. Through the structural analysis of two calculation models, ensure that all performance indicators can meet the specification requirements. |
| Keywords: | Steel Structure of Latticed Shell; Structural Analysis; Large Earthquake Analysis |
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