[1]陆金钰,范圣刚,闫鲁南,等.侧边加劲带缝钢板剪力墙抗侧刚度及极限承载力计算[J].东南大学学报(自然科学版),2013,43(3):571-575.[doi:10.3969/j.issn.1001-0505.2013.03.023]
 Lu Jinyu,Fan Shenggang,Yan Lunan,et al.Calculation of lateral stiffness and ultimate shear capacity for stiffened steel plate shear wall with slits[J].Journal of Southeast University (Natural Science Edition),2013,43(3):571-575.[doi:10.3969/j.issn.1001-0505.2013.03.023]
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侧边加劲带缝钢板剪力墙抗侧刚度及极限承载力计算()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第3期
页码:
571-575
栏目:
土木工程
出版日期:
2013-05-20

文章信息/Info

Title:
Calculation of lateral stiffness and ultimate shear capacity for stiffened steel plate shear wall with slits
作者:
陆金钰12范圣刚12闫鲁南1王恒华12
1东南大学混凝土与预应力混凝土教育部重点实验室, 南京 210096; 2东南大学国家预应力工程技术研究中心, 南京 210096
Author(s):
Lu Jinyu12 Fan Shenggang12 Yan Lunan1 Wang Henghua12
1Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
2National Prestress Engineering Research Center, Southeast University, Nanjing 210096, China
关键词:
钢板剪力墙 加劲 开缝 抗侧刚度 极限承载力
Keywords:
steel plate shear wall stiffened slitting lateral stiffness ultimate shear capacity
分类号:
TU391;TU392.4
DOI:
10.3969/j.issn.1001-0505.2013.03.023
摘要:
分析了侧向荷载作用下带缝钢板剪力墙面内变形时的受力特性,提出了考虑边缘加劲肋影响效应的带缝钢板剪力墙抗侧刚度计算公式,大幅提高了抗侧刚度估算公式的计算精度,利用该公式得到的计算值与有限元分析结果的误差可控制在3.5%以内.分析表明,随缝间墙肢宽度与墙板高度之比的增加或缝间墙肢高度与墙板高度之比的减小,面外变形对墙板极限承载力的不利影响增大.经合理设计,面外变形虽不足以引起墙板面外失稳,但会导致极限承载力下降,建议将这种不利影响的极限承载力折减系数考虑为0.9.将折减后的计算结果与非线性有限元分析结果进行对比,结果表明,考虑折减系数可以使得墙板的极限承载力计算公式偏于安全.这种抗侧刚度及极限承载力计算公式适用于屈曲前屈服的侧边加劲带缝钢板剪力墙.
Abstract:
Based on the mechanism of steel plate shear wall with slits subjected to horizontal loads, a formula to estimate initial lateral stiffness is proposed.The influences of edge stiffeners are taken into account, which improves the accuracy of the formula obviously. The errors between the calculated results and the finite element analysis results are less than 3.5%. The analysis results show that, with the increase in the ratio of the limb width to the wall height or the decrease in the ratio of the limb heigth to the wall height, the adverse effect of the out-of-plane deformation on the ultimate shear capacity of steel slit wall becomes more obvious. With proper design, the out-of-plane deformation can not cause the buckling but the non-negligible effect on the ultimate shear capacity. In the calculation of lateral ultimate shear capacity, a reduction factor 0.9 is introduced to account for the adverse effect. The comparison between the calculated results and the finite element analysis results show that the proposed formula gives a safe and reasonable estimate to the ultimate shear capacity of steel slit wall. The proposed formula can be applied to stiffened steel slit wall designed to undergo full plastic deformation prior to the out-of-plane buckling.

参考文献/References:

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相似文献/References:

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备注/Memo

备注/Memo:
作者简介: 陆金钰(1981—),男,博士,副教授,davidjingyu@gmail.com.
基金项目: 国家自然科学基金资助项目(51008065,51208263)、江苏省产学研前瞻性联合研究资助项目(BY2012200).
引文格式: 陆金钰,范圣刚,闫鲁南,等.侧边加劲带缝钢板剪力墙抗侧刚度及极限承载力计算[J].东南大学学报:自然科学版,2013,43(3):571-575. [doi:10.3969/j.issn.1001-0505.2013.03.023]
更新日期/Last Update: 2013-05-20