- 摘 要
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(湖南大學(xué)土木工程學(xué)院, 長(zhǎng)沙 410082)
[摘要]我國(guó)現(xiàn)行規(guī)范中對(duì)于框架、框架-剪力墻和剪力墻三種結(jié)構(gòu)體系按不同框架傾覆力矩比例進(jìn)行設(shè)計(jì)劃分,但劃分依據(jù)不明確。根據(jù)結(jié)構(gòu)設(shè)計(jì)規(guī)范設(shè)計(jì)了8個(gè)不同框架傾覆力矩比例的框架-剪力墻結(jié)構(gòu)模型,基于纖維模型使用PERFORM 3D程序?qū)λ憷P瓦M(jìn)行大震下的彈塑性時(shí)程分析,從多方面研究框架傾覆力矩比例對(duì)于結(jié)構(gòu)整體抗震性能的影響。結(jié)果表明:框架傾覆力矩比例在15%~60%之間的框架-剪力墻結(jié)構(gòu)的抗震性能并沒有明顯差異;而當(dāng)框架傾覆力矩比例大于80%時(shí),剪力墻無法成為框架-剪力墻結(jié)構(gòu)的第一道抗震防線。
[關(guān)鍵詞]框架-剪力墻結(jié)構(gòu); 傾覆力矩; 彈塑性時(shí)程分析; 性能化設(shè)計(jì)
中圖分類號(hào):TU973-31文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2019)09-0048-07
Seismic performance analysis of frame-shear wall structures with different frame overturning moment ratio
Yi Weijian, Zhou Weiwei
(College of Civil Engineering, Hunan University, Changsha 410082, China)
Abstract:The design of frame, frame-shear wall and shear wall structure system is divided according to the ratio of frame overturning moment in current Chinese design code, but the basis is not clear. According to the structural design code, eight frame-shear wall structure models with different frame overturning moment ratio were designed. The elastic-plastic time-history analysis of these models was carried out using PERFORM 3D program based on fiber model, and the influence of the frame overturning moment ratio on the seismic performance of the structure was studied from various aspects. The results show that, there is no significant difference in the seismic performance of frame-shear wall structures with frame overturning moment ratio between 15%~60%. When the frame overturning moment ratio is greater than 80%, the shear wall cannot be the first anti-seismic line in frame-shear wall structures.
Keywords:frame-shear wall structure; overturning moment; elastic-plastic time-history analysis; performance-based design
*國(guó)家自然科學(xué)基金資助(51338004)。
作者簡(jiǎn)介:易偉建,博士,教授,博士生導(dǎo)師,Email:wjyi@hnu.edu.cn。
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