| 火灾下复杂拉力场钢板剪力墙屈曲后的上限塑性极限分析 |
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| 引用本文： | 张荣钢, 张宏涛, 石永久, 庄茁. 火灾下复杂拉力场钢板剪力墙屈曲后的上限塑性极限分析[J]. 工程力学, 2014, 31(5): 71-78. DOI: 10.6052/j.issn.1000-4750.2013.10.0925 |
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| 作者姓名： | 张荣钢 张宏涛 石永久 庄 茁 |
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| 作者单位： | 1.清华大学航院工程力学系, 北京 100084;;2.北方工业大学建筑工程学院, 北京 100144;;3.清华大学土水学院土木系, 北京 100084;;4.中国寰球工程公司, 北京 100012 |
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| 基金项目： | 国家“十二五”科技支撑项目(百万吨级乙烯成套工艺技术、关键装备研发及示范应用项目)(2012BAF05B00) |
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| 摘 要： | 基于塑性极限分析上限法理论, 提出了火灾下高温复杂拉力场的窄型钢板剪力墙屈曲后的拉力带模型TSM(Temperature String Model), 依据此假定推导了考虑变温场极限状态下窄型钢板剪力墙屈曲后的水平承载力计算上限解公式, 对火灾温度场下窄型钢板剪力墙屈曲后强度进行了研究, 还推导了火灾下复杂拉力场的两端不同温度场钢板剪力墙屈曲后的水平承载力计算上限解。利用上述方法对石化裂解炉的钢箱体结构进行了抗火极限分析。计算实例表明该方法简单有效, 可以为不同火灾场景下钢箱体结构抗火设计提供理论依据和实用的计算方法。
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| 关 键 词： | 窄型钢板剪力墙 屈曲后承载力 复杂温度拉力带模型TSM 上限塑性极限分析 抗火设计 |
| 收稿时间： | 2013-10-09 |
POST BUCKLING UPPER BOUND PLASTIC-LIMIT ANALYSIS OF FIRE RESISTANCE FOR MULTI-TENSION STEEL PLATE SHEAR WALLS |
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| ZHANG Rong-gang, ZHANG Hong-tao, SHI Yong-jiu, ZHUANG Zhuo. POST BUCKLING UPPER BOUND PLASTIC-LIMIT ANALYSIS OF FIRE RESISTANCE FOR MULTI-TENSION STEEL PLATE SHEAR WALLS[J]. Engineering Mechanics, 2014, 31(5): 71-78. DOI: 10.6052/j.issn.1000-4750.2013.10.0925 |
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| Authors: | ZHANG Rong-gang ZHANG Hong-tao SHI Yong-jiu ZHUANG Zhuo |
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| Affiliation: | 1.Department of Engineering Mechanics, School of Aerospace, Tsinghua University, Beijing 100084, China;;2.The College of Architecture and Civil Engineering, North China University of Technology, Beijing 100144, China;;3.Department of Civil Engineering, Tsinghua University, Beijing 100084, China;;4.China Huanqiu Contracting & Engineering Corpotation, Beijing 100012, China |
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| Abstract: | Based on the upper bond plastic-limit analysis theorem, the assumptions of a Temperature String Model (TSM) of post buckling for multi-tension narrow Steel Plate Shear Wall (SPSW) under fire are summarized, and the upper bound solutions of the allowable shear force of SPSW are deduced. The post buckling bearing properties of narrow SPSW are researched under fire. Also the post buckling for the multi-tension Steel Plate Shear Wall (SPSW) with differing temperature between two ends are summarized, and the upper bound solutions of the allowable shear force of SPSW are deduced. The fire resistance limit analysis of SPSW is studied in the petrochemical furnace equipment, for which the fireproof protection is designed. The application examples indicate that this method is simple and useful, and it can provide a theoretical and practical way for the different fire situation designs of SPSW structures. |
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| Keywords: | narrow steel plate shear wall post bucking bearing property multi-tension temperature string model?(TSM) upper bound plastic limit analysis fire design |
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