- 摘 要
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（長(zhǎng)安大學(xué)建筑工程學(xué)院， 西安 710061）
［摘要］為提高混凝土剪力墻的承載力和變形能力，可以在剪力墻截面兩端邊緣約束構(gòu)件內(nèi)設(shè)置型鋼。根據(jù)8個(gè)型鋼混凝土剪力墻彎曲破壞的試驗(yàn)結(jié)果，以開(kāi)裂點(diǎn)、屈服點(diǎn)、峰值點(diǎn)和極限點(diǎn)為特征點(diǎn)，將這種剪力墻截面的彎矩-曲率骨架曲線簡(jiǎn)化為四線型；基于平截面假定并考慮約束邊緣構(gòu)件及型鋼的影響，提出了剪力墻開(kāi)裂彎矩和曲率、屈服彎矩和曲率、峰值彎矩和曲率以及極限彎矩和曲率的表達(dá)式。研究結(jié)果表明，基于平截面假定所得的開(kāi)裂彎矩和曲率、屈服彎矩和曲率及極限彎矩和曲率的計(jì)算值均與試驗(yàn)值吻合較好。
［關(guān)鍵詞］型鋼混凝土剪力墻； 約束邊緣構(gòu)件； 彎矩-曲率； 骨架曲線； 極限彎矩
中圖分類號(hào)： TU973.17 文獻(xiàn)標(biāo)識(shí)碼： A 文章編號(hào)： 1002-848X(2015)S2-0451-05
Moment-curvature relationship analysis of steel reinforcement concrete shear wall
Que Ang, Ma Kaize, Liu Chao
(School of Civil Engineering, Chang′an University, Xi′an 710061， China)
Abstract： In order to improve the lateral capacity of the reinforcement shear wall, the steel can be encased to the confined end-zones in the both ends of the shear wall cross-section. According to the experimental results of 8 high steel reinforcement concrete shear walls flexural failure, the moment-curvature skeleton curve of this shear wall cross-section is simplified as four linear through cracking point, yield point, peak point and ultimate point. Based on the plane-section assumption, the expressions of cracking bending moment and curvature, yield moment and curvature, the peak moment and curvature, the ultimate moment and curvature are derived. The effects of confined end-zones and steel effect on the moment and curvature are taken into account. The analysis results show that, the calculated values of the cracking moment and curvature, as well as the yield moment and curvature, which are based on the plane-section assumption, are in good consistent with the experimental data. Similarly, the calculated values of the ultimate moment and curvature obtained according to the plane-section assumption and to consider the impact of confined end-zones are also in good accordance with the experimental data.
Keywords: steel reinforcement concrete shear wall; confined end-zones; moment-curvature relationship; skeleton curve; ultimate moment
作者簡(jiǎn)介：闕昂，碩士研究生，Email:735297984@qq.com。
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