鋼板剪力墻結構豎向防屈曲簡化設計方法
聶建國，黃遠，樊健生
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(清華大學土木工程系，結構工程與振動教育部重點實驗室，北京 100084)［摘要］采用能量原理推導了設置豎向加勁肋鋼板墻的彈性屈曲應力的簡化計算公式，并根據理論公式進行了參數分析，研究了鋼板高寬比、加勁肋數量、加勁肋與鋼板剛度比以及加勁肋與鋼板面積比等參數對鋼板墻豎向屈曲荷載的影響。簡化公式計算結果與有限元計算結果吻合良好。研究表明，在鋼板墻高寬比確定的情況下，加勁肋與鋼板的剛度比是影響加勁板豎向屈曲荷載的主要因素，加勁肋與鋼板的面積比對加勁板屈曲荷載的影響較小，加勁肋端部與周邊框架不連接的鋼板墻優(yōu)于加勁肋端部與周邊框架連接的鋼板墻。［關鍵詞］鋼板剪力墻；加勁肋；臨界屈曲荷載；能量原理Vertical buckling-resistant design of steel plate shear wall structureNie Jianguo, Huang Yuan, Fan Jiansheng(Department of Civil Engineering, Tsinghua University, Beijing 100084, China)Abstract:Simplified theoretical equation for critical buckling stress of vertical stiffened steel plate shear wall(SPSW) was derived by energy principle. Parametric analysis was conducted to identify the main parameters affecting the vertical buckling behavior of stiffened SPSW. These parameters include the aspect ratio of the plate, the number of stiffeners, bending stiffness ratio, area ratio etc. The results of the formula fit well with the FEA analysis. Based on the theoretical analysis, it turns out that the bending stiffness ratio is the key influence on the buckling load of the stiffened steel plate, while the area ratio has little impact on the buckling load of the stiffened steel plate. Unanchored stiffener has more advantages than the anchored stiffener.Keywords:steel plate shear wall; ribbed stiffener; critical buckling load; energy principle國家自然科學基金項目(50438020)。作者簡介：聶建國，教授，博士生導師，長江學者特聘教授，Email:niejg@mail.tsinghua.edu.cn。參考文獻［1］MURRAY N W. Analysis and design of stiffened plates for ultimate load［J］. The Structural Engineer，1975，53(3)：153-158.［2］CARLSEN C A. Simplified collapse analysis of stiffened plates［J］. Norwegian Maritime Research，1977，4(1)：20-36.［3］CARLSEN C A. A parametric study on collapse of stiffened plates in compression［J］. The Structural Engineer，1980，58B(2)：33-41.［4］GHAVAMI K. Experimental study of stiffened plates in compression upto collapse［J］. Journal of Constructional Steel Research，1994，28(2)：197-221.［5］YUKIO UEDA, RASHED S M H, PAIK J K. Buckling and ultimate strength interaction in plates and stiffened panels under combined inplane biaxial and shearing forces［J］. Marine Structures，1995，8(1):1-36.［6］GRONDIN G Y, ELWI A E, CHENG J J R. Buckling of stiffened steel plates—a parametric study［J］. Journal of Constructional Steel Research，1999，50(2)：151-165.［7］SUNEEL KUMAR M, ALAGUSUNDARAMOORTHY P, SUNDARAVADIVELU R. Stability of stiffened steel plates under axial compression［C］//Civil Engineering in the Oceans VI，Baltimore, Maryland, USA, 2004.［8］JGJ
