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   王錦力，  劉海卿，  孔德利
   （遼寧工程技術(shù)大學(xué)建筑工程學(xué)院，阜新 123000）

[摘要] 通過(guò)對(duì)6個(gè)135⁰L形截面異形柱邊節(jié)點(diǎn)進(jìn)行抗震性能數(shù)值模擬研究，分析在低周反復(fù)荷載作用下梁截面尺寸、梁配筋、軸壓比、核心區(qū)體積配箍率及混凝土強(qiáng)度等因素對(duì)其抗震性能的影響。結(jié)果表明：在高軸壓比作用下，雖然對(duì)節(jié)點(diǎn)的極限承載力有一定的提高，但是其延性和耗能能力較低軸壓時(shí)弱；在其他條件不變的情況下，提高混凝土強(qiáng)度對(duì)節(jié)點(diǎn)的延性及耗能能力有所改善；適當(dāng)加強(qiáng)節(jié)點(diǎn)核心區(qū)的體積配箍率對(duì)節(jié)點(diǎn)的抗震性能有所提高。
[關(guān)鍵詞] 135⁰異形柱；節(jié)點(diǎn)；反復(fù)荷載；不同截面；抗震性能
中圖分類號(hào)：TU375.3    文獻(xiàn)標(biāo)識(shí)碼：A    文章編號(hào)：1002-848X(2012) Sl-0783-03

Seismic behavior study of 135⁰ L form reinforced concrete column side joints
Wang Jinli, Liu Haiqing, Kong Deli
( College of Architecture Engineering, Liaoning Technical University, Fuxin 123000, China)

Abstract: Through numerical simulation analysis of the six 135⁰L-shaped section of special-shaped columns side nodes aseismic performance, the influence of beam section size, beam reinforcement, the axial compression ratio, core with volume concrete strength stirru Pratio and other factors on the seismic performance under low reversed cyclic loading were analyzed. The results showed that under the action of the high axial compressive ratio, although the ultimate bearing capacity of node was improved, but its ductility and energy dissipation capacity was lower. In other conditions under the condition of invariable, improving the concrete strength could improve the ductility and energy dissipation capacity. Strengthening the volume of the shear appropriate to node of the stirrup ratio could improve the seismic performance.
Keywords: 135⁰special-shaped columns; joint; repeated loading; different section; seisnuc performance