【作者】 闫鲁南； 陆金钰； 王恒华；

【Author】 Yan Lu-nan~1,~*Lu Jin-yu~(1,2),Wang Heng-hua~(1,2) (1.School of Civil Engineering,Southeast University,Nanjing 210096; 2.Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096)

【机构】 东南大学土木工程学院； 东南大学上木工程学院； 东南大学混凝土与预应力混凝土教育部重点实验室；

【摘要】 带缝钢板剪力墙是一种新型抗震元件,具有高延性、高耗能能力等优点。良好抗震性能得以发挥的前提条件是墙板在发生面外屈曲前充分发展塑性。论文采用数值模拟结合理论分析的方法对边缘加劲带缝钢板剪力墙的弹性屈曲性能进行了系统分析,分别研究了各种特征参数对墙板屈曲临界力及屈曲模态的影响规律,并在此基础上提出了边缘加劲肋的取值建议及墙板屈曲模态的预测方法。分析结果表明:加劲肋在保证自身局部屈曲不早于墙板整体屈曲的前提下,可优先考虑与墙板同厚的钢板,肋板刚度比在30-50之间较为合理,既可达到提高屈曲承载力的目的,又具有一定的经济性;开缝参数对墙板屈曲临界力及屈曲模态的影响根据开缝层数的不同分为两类;墙板整体高厚比及宽高比对屈曲临界力和屈曲模态的影响规律与两侧加劲的非开缝板类似。更多还原

【Abstract】 Steel plate shear wall with slits,referred to simply as steel slit wall hereafter,is a new earthquake-resisting element and has advantages of high ductility and energy dissipation capability,etc. To achieve good anti-seismic performance,the steel slit wall should obtain full development of plastic prior to the out-of-plane buckling.Elastic buckling behavior of stiffened steel slit wall was analyzed by employing numerical analysis method and theoretical analysis.Parameters affecting the elastic buckling behavior of steel slit wall were investigated.Based on the obtained data,the design method for the stiffener and the prediction of buckling mode for steel slit wall were proposed.The results shown that on the basis of stiffener buckling was not prior to overall buckling of steel slit wall,the thickness of stiffener should be indentical to that of infill steel plate,and the stiffeness ratio of stiffeners to infill steel plate was reasonable to be in the range of 30-50.The influence of slitting parameters on the stability behavior of steel slit wall changes with the different tier number of slitting.And the effects of aspect ratio and height-to-thickness ratio of steel slit wall are similar to that of steel plate shear wall without slits.更多还原