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(1 四川省建筑設(shè)計(jì)研究院有限公司, 成都 610095; 2 四川省建筑設(shè)計(jì)研究院有限公司復(fù)雜結(jié)構(gòu)設(shè)計(jì)研究中心, 成都 610095)

摘要: 為了研究加勁肋對(duì)大寬高比鋼板剪力墻抗震性能的影響,參考實(shí)際工程的墻板寬高比,基于 ABAQUS 構(gòu)建了鋼板剪力墻的精細(xì)化非線性數(shù)值分析比對(duì)模型. 模型包括非加勁鋼板剪力墻和豎向交替加勁鋼板剪力墻兩種,比較分析了二者的屈曲特征、抗剪性能、滯回性能、應(yīng)力發(fā)展與變形分布等行為,明確了豎向交替加勁肋對(duì)大寬高比鋼板剪力墻抗震性能的影響規(guī)律. 結(jié)果表明:豎向交替加勁肋可有效延緩墻板的面外屈曲,提高墻板的彈性屈曲荷載;豎向交替加勁鋼板剪力墻滯回性能優(yōu)異,墻板拉力帶分布更加均勻,拉力帶水平分量對(duì)柱引起的附加彎矩較小,墻板呈現(xiàn)出中厚板的工作特性.

關(guān)鍵詞: 豎向交替加勁肋; 大寬高比鋼板剪力墻; 彈性屈曲荷載; 抗剪承載力; 加勁系數(shù)

中圖分類號(hào):TU392. 4 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)07-0009-09

DOI:10. 19701 / j. jzjg. SADI2302

Study on influence of vertical alternate stiffeners on seismic performance of steel plate shear walls with large width to height ratio

FAN Qinchuan1,2, GONG Xiaobing1,2, LI Yan1,2, GUO Changling1, HE Fei1,2

(1 Sichuan Provincial Architectural Design and Research Institute Co. , Ltd. , Chengdu 610095, China;2 Complex Structure Design and Research Center, Sichuan Provincial Architectural Design and ResearchInstitute Co. , Ltd. , Chengdu 610095, China)

Abstract: In order to study the influence of stiffeners on seismic performance of steel plate shear walls with large width toheight ratio, the refined nonlinear numerical analysis comparison model of steel plate shear walls with ABAQUS wereestablished by referring to the width to height ratio of wall panels in practical projects. The model includes two models ofnon-stiffened steel plate shear wall and vertically alternately stiffened steel plate shear wall. The behaviors includingbuckling characteristics, shear resistance, hysteretic behavior, stress development and deformation distribution werecompared and analyzed, and the influence of vertical alternately stiffeners on the seismic performance of steel plate shearwall with large width to height ratio was clarified. The results show that the vertical alternate stiffeners can effectively delaythe out of plane buckling of the wall panel and improve the elastic buckling load of the wall panel. The vertical alternatelystiffened steel plate shear wall has excellent hysteretic performance, the tension band of the wall panel is more evenlydistributed, the value of additional bending moment caused by the horizontal component of the tension band to the column issmall, and the wall panel presents the working characteristics of medium thick plate.

Keywords:vertical alternate stiffener; steel plate shear walls with large width to height ratio; elastic buckling load; shearcapacity; stiffening coefficient

∗四川省建筑設(shè)計(jì)研究院有限公司科研項(xiàng)目(KYYN201803).

第一作者:樊秦川,碩士,工程師,主要從事鋼結(jié)構(gòu)的設(shè)計(jì)與研究,Email:17138190@ qq. com.

[引用本文] 樊秦川,龔小兵,李巖,等. 豎向交替加勁肋對(duì)大寬高比鋼板剪力墻抗震性能的影響研究[ J]. 建筑結(jié)構(gòu),2023,53(7):9-17. FAN Qinchuan,GONG Xiaobing,LI Yan,et al. Study on influence of vertical alternate stiffenerson seismic performance of steel plate shear walls with large width to height ratio[ J]. Building Structure,2023,53( 7):9-17.