U型钢板力学性能受硬度和层数的影响分析

杜红凯; 韩淼; 闫维明; 蒋金卫

doi:10.6052/j.issn.1000-4750.2015.05.S015

U型钢板力学性能受硬度和层数的影响分析

1.
北京工业大学工程抗震与结构诊治北京市重点实验室, 北京 100022;
2.
北京建筑大学北京节能减排关键技术协同创新中心, 北京 100044

基金项目: 国家自然科学基金项目(51378047,51408027);北京市青年英才项目(YETP1664)

详细信息

作者简介:
韩淼(1969-),男,山东人,教授,博士,博导,主要从事工程结构抗震减灾及抗震性能研究(E-mail:hanmiao@bucea.edu.cn);闫维明(1960-),男,黑龙江人,教授,博士,博导,主要从事结构抗震和防灾减灾研究(E-mail:yanwm@bjut.edu.cn);蒋金卫(1991-),男,浙江人,硕士生,主要从事结构工程及防灾减灾工程研究(E-mail:619536470@qq.com).

通讯作者:
杜红凯(1981-),男,山东人,讲师,博士生,主要从事工程结构抗震及减震研究(E-mail:duhongkai@163.com).

中图分类号: TU352.1
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- 文章访问数: 349
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出版历程
- 收稿日期: 2015-05-01
- 修回日期: 2015-11-29
- 刊出日期: 2016-06-24

MECHANICAL PROPERTIES ANALYSIS OF U-SHAPED STEEL PLATES OF DIFFERENT HARDNESS AND NUMBERS OF LAYERS

1.
Beijing Key Lab of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100022, China;
2.
Beijing Collaborative Innovation Center of Energy Conservation and Emission Reduction Technology, Beijing University of Civil Engineering and Architecture, Beijing 100044, China

摘要

摘要: U型钢板可作为限位器和阻尼器使用,设计4种U型钢板,分别采用软钢和硬钢制作,进行单推和推拉两种情况下的静力试验,结果表明,厚度较大的硬钢U型钢板易发生断裂;硬钢U型钢板比软钢具有更大的屈服荷载和屈服位移,更适合做限位器;硬钢的滞回曲线呈典型梭形,屈服后荷载仍有较大增长,软钢的滞回曲线呈平行四边形,屈服后荷载增长不大。推导了叠层U型钢板的屈服荷载、屈服位移和弹性刚度的计算公式,设计4种单层和叠层U型钢板,用ABAQUS有限元软件进行建模分析,有限元计算结果与理论分析一致;U型钢板分成n层后,弹性刚度近似折减为原来的1/n²,屈服荷载近似折减为原来的1/n,屈服位移近似增大为原来的n倍。
- 阻尼器 /
- 限位器 /
- U型钢板 /
- 叠层U型钢板 /
- 有限元分析
Abstract: U-shaped steel plates (USPs) can be used for displacement restraining devices or dampers. Single push and push-pull static tests of four kinds of USP made by mild steel or hardened steel were completed. The tests show that thick USPs made by hardened steel fracture easily. Hardened steel USPs provide greater yield load and yield displacement and are more suitable for displacement restraining devices than mild steel ones. Hysteresis curves of hardened steel USPs showed typical spindle shape, and the load increased significantly after yielding. Hysteresis curves of mild steel USPs are parallelograms, and the load increased a little after yielding. Formulae of yield load, yield displacement and elastic stiffness for laminated U-shaped steel plates (LUSP) are derived. Four USPs and four LUSPs were designed and analyzed by Abaqus. The calculation of finite element fits the theory well. The ratios of LUSP to USP in terms of elastic stiffness, yield load and yield displacement are 1/n², 1/n and n, respectively.
- damper /
- displacement restraining device /
- U-shaped steel plate /
- laminated U-shaped steel plate /
- finite element analysis

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参考文献(10)

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文章访问数: 349
HTML全文浏览量: 34
PDF下载量: 56
被引次数: 15

U型钢板力学性能受硬度和层数的影响分析

通讯作者: 杜红凯(1981-),男,山东人,讲师,博士生,主要从事工程结构抗震及减震研究(E-mail:duhongkai@163.com).

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出版历程

MECHANICAL PROPERTIES ANALYSIS OF U-SHAPED STEEL PLATES OF DIFFERENT HARDNESS AND NUMBERS OF LAYERS

期刊类型引用(7)

其他类型引用(8)

计量

出版历程

目录

通讯作者:
杜红凯(1981-),男,山东人,讲师,博士生,主要从事工程结构抗震及减震研究(E-mail:duhongkai@163.com).