[1]孙国华,李坤明,胡月华,等.半刚接钢框架内填实体RC墙结构的地震易损性能评估[J].西安建筑科技大学学报(自然科学版),2024,56(01):38-46.[doi:10.15986/j.1006-7930.2024.01.006]
　SUN Guohua,LI Kunming,HU Yuehua,et al.Fragility analysis of partially-restrained steel frame with solid RC infill walls[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2024,56(01):38-46.[doi:10.15986/j.1006-7930.2024.01.006]
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半刚接钢框架内填实体RC墙结构的地震易损性能评估()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
56
期数:
2024年01期
页码:
38-46
栏目:
出版日期:
2024-02-28

文章信息/Info

Title:
Fragility analysis of partially-restrained steel frame with solid RC infill walls
文章编号:
1006-7930(2024)01-0038-09
作者:
孙国华1; 2; 李坤明2; 胡月华2; 黎明2
（1.苏州科技大学 江苏省结构工程重点实验室，江苏 苏州 215011；2.苏州科技大学 土木工程学院，江苏 苏州 215011）
Author(s):
SUN Guohua1; 2;  LI Kunming2;  HU Yuehua2;  LI Ming2
（1.Jiangsu Key Laboratory of Structure Engineering, Suzhou University of Science and Technology, Suzhou 215011, China;2.School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, China）
关键词:
钢框架; 内填墙; 易损性; 倒塌安全储备系数
Keywords:
steel frame;  infill wall;  fragility curve;  collapse margin ratio
分类号:
TU312
DOI:
10.15986/j.1006-7930.2024.01.006
文献标志码:
A
摘要:
为评估半刚接钢框架内填实体RC墙结构（PSRCW）的地震易损性能及倒塌储备能力，考虑层数和抗震设防烈度影响合理设计了4个PSRCW结构基准算例，采用Latin超立方抽样方法考虑型钢、混凝土、钢筋等材料力学性能及内填RC墙体厚度几何尺寸的随机性，拓展为4组共计160个PSRCW算例. 通过合理选取40条汶川地区实测地震记录，与每组40个PSRCW结构样本随机组合，构成了4组40个地震-结构样本对，通过弹塑性时程分析方法确定了PSRCW结构在“弹性极限”“完全运行”“运行”“生命安全”“接近倒塌”“倒塌”性态下的地震易损性曲线，并进行了抗震性能评估，量化了PSRCW结构的倒塌储备能力. 分析结果表明:PSRCW结构的倒塌安全储备系数在3.0~4.3之间，具有良好的抗地震倒塌能力.
Abstract:
In order to evaluate the fragility and collapse margin ratio of partiallyrestrained steel frame with solid reinforced concrete infill wall (PSRCW), four benchmark PSRCW structures were designed considering the effects of story number and seismic intensity. Considering the randomness of the mechanical properties of materials such as profile steel, concrete and steel bars and the geometric size of the thickness of RC infill wall, the Latin hypercube sampling method was used to expand to four groups of 160 PSRCW examples. By reasonably selecting 40 measured seismic records in Wenchuan area and randomly combining them with 40 PSRCW structural samples in each group, four groups of 40 earthquakestructure sample pairs were formed. Through the elasticplastic time history analysis method, the seismic fragility curves of the PSRCW structure under the “elastic limit”, “full operation”, “operation”, “life safety”, “near collapse” and “collapse” states were determined, and the seismic performance evaluation was carried out to quantify the collapse reserve capacity of the PSRCW structure. The analysis results show that the CMR of the PSRCW structure is between 3.0 and 4.3, which has good seismic collapse resistance.

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备注/Memo

备注/Memo:
收稿日期:2022-10-05修回日期:2023-02-03
基金项目:国家自然科学基金项目（51108292）；江苏省高等学校自然科学研究重大项目（17KJA560003）；江苏省“六大人才高峰”项目（JZ-035）
第一作者:孙国华（1978—），男，博士，教授，主要从事钢结构及组合结构抗震研究.E-mail:sungh-529@163.com
更新日期/Last Update: 2024-04-08