加劲肋和防屈曲对变缝钢板剪力墙受力性能的影响

为了研究加劲肋和防屈曲措施对变缝钢板剪力墙受力性能的影响,应用有限元软件ADINA建立12 mm厚的变缝钢板剪力墙模型并分别在模型两侧布置加劲肋和在模型上施加面外防屈曲措施,模拟并分析两侧加劲肋和面外防屈曲措施对变缝钢板剪力墙受力性能的影响。分析结果表明:两侧加劲肋可以提高模型的受力性能,延迟模型发生过早的捏拢现象,端部出现了应力集中现象;面外防屈曲措施的施加既可以明显改善模型的受力性能,又可以使模型在加载全程都具有良好的耗能能力,应力、应变区域发生了相应的减小。

Influence of Stiffener and Buckling-Resisting on the Mechanical Properties of Steel Plate Shear Wall With Variable Slits

The finite element software ADINA was used to establish models of the steel shear wall with variable slits in order to inves-tigate the influence of stiffener and buckling-resisting on the mechanical properties of the wall,of which the thickness was 12 mm. The stiffened and buckling-resisted models were simulated and analyzed respectively. The results showed that the mechanical prop-erties of stiffened models improved on which the pinch phenomenon occurred later,and the stress concentration phenomenon oc-curred at the end of models,while the mechanical properties of buckling-resisted models improved. The process had enough faculty of consuming energy during the whole experiment,and the stress and strain decreased comparatively.