| 钢筋混凝土建筑结构的抗地震破坏倒塌能力评估研究 |
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| 引用本文： | 汪玉容.钢筋混凝土建筑结构的抗地震破坏倒塌能力评估研究[J].西北地震学报,2018,40(5):919-925. |
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| 作者姓名： | 汪玉容 |
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| 作者单位： | 凯里学院建筑工程学院, 贵州 凯里 556000 |
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| 基金项目： | 贵州省教育厅青年科技人才成长项目"黔东南民族木结构传统连接与现代连接性能比较研究"（黔教合KY字[2017]331） |
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| 摘 要： | 在地震作用下钢筋混凝土建筑结构出现破坏倒塌为地震灾害中的关键,有效评估建筑结构抗地震破坏倒塌能力是建筑结构设计的前提,也是当前建筑结构提高抗震性能与加固的依据。提出变形指标极值、失效判断标准以及钢筋混凝土建筑结构倒塌极限状态判断标准,据此获取倒塌储备系数、倒塌易损性、结构整体超强系数、结构整体延性系数等评估标准。采用Pushover分析法选择相应地震波。依据梁柱线刚比对建筑结构抗倒塌能力的影响,以及柱端弯矩增加系数对建筑结构抗地震破坏倒塌能力的影响,对建筑结构易损性进行分析。结果表明:等跨建筑结构抗地震破坏倒塌能力更强;建筑结构底层是薄弱层,COF值越高,结构越容易倒塌。
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| 关 键 词： | 钢筋混凝土 建筑结构 抗地震破坏 倒塌能力 评估 |
| 收稿时间： | 2017/8/20 0:00:00 |
Evaluation of Anti-seismic Damage and Collapse Capabilityof Reinforced Concrete Building Structures |
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| WANG Yurong.Evaluation of Anti-seismic Damage and Collapse Capabilityof Reinforced Concrete Building Structures[J].Northwestern Seismological Journal,2018,40(5):919-925. |
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| Authors: | WANG Yurong |
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| Institution: | School of Architectural Engineering, Kaili University, Kaili 556000, Guizhou, China |
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| Abstract: | The failure and collapse of reinforced concrete building structures during earthquakes is a key factor in earthquake disasters. The effective evaluation of the seismic collapse-resistant capacity of a building structure is a vital component of building structure design, and also serves as the basis for improving the seismic performance and reinforcement of building structures. In this paper, we propose the extreme value of the deformation index, the failure judgment criterion, and the collapse limit state. Based on these factors, we can obtain evaluation criteria such as the collapse reserve coefficient, collapse vulnerability, structure integral superstrength coefficient, and structure integral ductility coefficient. We use the pushover analysis method to select the corresponding seismic waves. Given the influence of beam-to-column linear stiffness ratio on the anti-collapse capacity of a building structure, we can analyze the vulnerability of the building structure. From our study results, we can draw the following conclusions:equal-span building structures are more resistant to earthquake damage and collapse; the bottom layer of the building structure is weakest; and the higher is the COF value, the more easily a structure will collapse. |
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| Keywords: | reinforced concrete building structure anti-seismic damage anti-collapse capacity evaluation |
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