多連梁的計(jì)算方法及抗震性能分析
焦 柯，趙云龍，吳文勇
- 摘 要
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（廣東省建筑設(shè)計(jì)研究院，廣州510010）[摘要] 介紹了結(jié)構(gòu)設(shè)計(jì)中常采用的抗剪截面積等效和抗彎剛度等效的多連梁計(jì)算方法。按抗剪截面積等效方法計(jì)算多連梁的誤差較大。按抗彎剛度等效方法計(jì)算多連梁相對(duì)較合理。本文推導(dǎo)了多連梁抗彎剛度等效的計(jì)算公式，在結(jié)構(gòu)計(jì)算中可直接對(duì)抗彎剛度進(jìn)行折減。雙肢墻結(jié)構(gòu)推覆分析結(jié)果表明，雙連梁模型的梁兩端較早出現(xiàn)塑性鉸，而且塑性鉸數(shù)量更多，出鉸更加充分，耗能及延性優(yōu)于單連梁模型。[關(guān)鍵詞] 多連梁;等效計(jì)算方法;抗震性能分析中圖分類號(hào)：TU318 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)S1-0640-03Calculating method and seismic performance analysis of multiple wall-beamsJiao Ke, Zhao Yunlong, Wu Wenyong(The Institute of Architecture Design & Research of Guangdong Province, Guangzhou 510010,China)Abstract: Shearing area and bending stiffness equivalent simulation methods about multiple wall-beams that are commonly used on structure design are introduced. Shearing area equivalence show great deviation in multiple wall-beams calculation. Bending stiffness equivalence obtains relatively reasonable result. The multiple wall-beams equivalent formula that can directly use to discount the bending stiffness is deduced in this paper. The pushover analysis results of a coupled shear wall indicate that the plastic hinges of beam ends appeared earlier and more in double beams structure, and its energy dissipation and ductility is better than single beam structure.Keywords: multiple wall-beams; equivalent calculating method; seismic performance analysis
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