不等高开缝钢板剪力墙滞回性能分析

发布时间：2018-03-20 14:21

本文选题：钢板剪力墙　切入点：不等高开缝　出处：《浙江大学学报(工学版)》2014年11期 　论文类型：期刊论文

【摘要】：针对带缝钢板剪力墙开设竖缝后抗侧刚度和极限承载力大幅削弱的问题,提出蝶型和梭型2种不等高开缝形式,采用数值模拟的方法对不等高开缝钢板剪力墙的弹塑性屈曲性能及滞回性能进行研究,并与传统等高开缝钢板剪力墙进行对比分析。结果表明:通过不等高开缝形式提高带缝钢板剪力墙极限承载力和抗侧刚度的效果可观,极限承载力的增幅能达到15%以上,抗侧刚度的增幅能达到40%以上;对比传统开缝形式,蝶型开缝改善墙板延性,梭型开缝对墙板延性影响不大;蝶型开缝墙板加载前期耗能性能优越且加载后期性能下降平缓,而对于梭型开缝墙板,缝间墙肢宽度越大,则承载力越早下降到极限承载力的85%,所以此开缝形式仅适用于缝间墙肢宽度较小墙板。
[Abstract]:In view of the problem that the lateral stiffness and ultimate bearing capacity of steel plate shear wall with slit are greatly weakened after the vertical joint is opened, two kinds of unequal high slit forms, butterfly type and shuttle type, are put forward. The elastoplastic buckling and hysteretic behavior of steel plate shear walls with different heights are studied by numerical simulation. The results show that the effect of raising ultimate bearing capacity and lateral stiffness of steel plate shear wall with slit is remarkable, and the increase of ultimate bearing capacity can reach more than 15%. The increase of anti-lateral stiffness can reach more than 40%, compared with the traditional slit, butterfly slit improves the ductility of wall board, and the shuttle slit has little effect on the ductility of wall board, and the sphenoid slit wall board has superior energy dissipation performance in the early stage of loading, and the performance of sphenoid slit wall decreases slowly in the later stage of loading. For the shuttle slotted wall board, the larger the width of the jointed wall limb, the earlier the bearing capacity decreases to 85% of the ultimate bearing capacity.
【作者单位】：东南大学混凝土与预应力混凝土教育部重点实验室;东南大学土木工程学院;
【基金】：国家“十二五”国家科技支撑计划资助项目(2012BAJ13B014)
【分类号】：TU392.4

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