- 摘 要
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(沈陽工業(yè)大學(xué)建筑工程學(xué)院， 沈陽 110870)
［摘要］采用ABAQUS軟件，建立4個帶鋼板耗能鍵的鋼管混凝土排柱組合剪力墻模型，在驗證建模方法可靠的基礎(chǔ)上，對不同試件進(jìn)行低周反復(fù)荷載下滯回特性、耗能能力、骨架曲線、延性、強(qiáng)度退化及剛度退化的對比研究，得出試件骨架曲線、滯回曲線，計算出承載力和位移延性系數(shù)，并分析剪跨比、鋼管套箍率、材料強(qiáng)度等級三個不同參數(shù)對組合剪力墻的影響。結(jié)果表明，該組合剪力墻的承載力高、耗能能力強(qiáng)、后期剛度穩(wěn)定、抗震性能良好；組合結(jié)構(gòu)的承載力、耗能能力均隨鋼板數(shù)量增加而提高，但延性下降，外包混凝土能夠大大提高結(jié)構(gòu)的承載力和耗能能力；隨剪跨比的增大，組合剪力墻承載力下降，但變形能力增強(qiáng)；隨鋼管套箍率增大，組合剪力墻的承載力和延性系數(shù)比增大，鋼管套箍率宜取1-01；鋼管內(nèi)部的混凝土對整體結(jié)構(gòu)強(qiáng)度影響的效果不明顯。
［關(guān)鍵詞］鋼板耗能鍵； 鋼管混凝土排柱； 骨架曲線； 滯回曲線； 耗能能力
中圖分類號：TU398+.2文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)07-0057-06
Study on seismic performance of composite shear walls and concrete filled steel tube columns in row with steel plate energy-dissipated bonds
Wei Hua, Lü Congcong, Wang Haijun
(Institute of Civil Engineering, Shenyang University of Technology, Shenyang 110870, China）
Abstract:Four models of composite shear walls and concrete filled steel tube columns in row with steel plate energy-dissipated bonds were established by ABAQUS finite element analysis software. The hysteretic characteristics, energy dissipation capacity, skeleton curve, ductility, strength degradation and stiffness degradation of different specimens under low cyclic loading were compared and studied on the basis of reliable and verificated modeling methods. The skeleton curve and hysteretic curve were obtained, and the bearing capacity and displacement ductility ratio were calculated. The effects of shear span ratio, steel ferrule rate and material strength grade on composite shear walls were analyzed. Results show that the composite wall has high bearing capacity, energy dissipation capacity, stable later-stage stiffness and good seismic performance. With the increase of steel plate number, the bearing capacity and energy dissipation capacity of the structure are improved, but the ductility decreases, and the encased concrete can greatly improve the bearing capacity and energy dissipation capacity of the structure. With the increase of shear span ratio, the bearing capacity of the composite shear wall declines, but the deformation capacity enhances. With the increase of steel ferrule rate, bearing capacity and ductility ratio increase, and the steel ferrule rate has the appropriate value of 1-01. Effect of the concrete inside the steel tube on the overall structural strength is not obvious.
Keywords:steel plate energy-dissipated bond; concrete filled steel tube columns in row; skeleton curve; hysteresis curve; energy dissipation capacity
*沈陽市科技計劃項目（F13-316-1-43）。
作者簡介：魏華，博士，副教授，Email: wang_navy@hotmail.com。
