[1]王传奇,高轩能,李琨.变截面门式刚架的动力特性[J].华侨大学学报(自然科学版),2009,30(1):75-79.[doi:10.11830/ISSN.1000-5013.2009.01.0075]
　WANG Chuan-qi,GAO Xuan-neng,LI Kun.Dynamic Behavior of Portal Frame Structures with Tapered Members[J].Journal of Huaqiao University(Natural Science),2009,30(1):75-79.[doi:10.11830/ISSN.1000-5013.2009.01.0075]
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变截面门式刚架的动力特性()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第30卷
期数:
2009年第1期
页码:
75-79
栏目:
出版日期:
2009-01-20

文章信息/Info

Title:
Dynamic Behavior of Portal Frame Structures with Tapered Members
文章编号:
1000-5013(2009)01-0075-05
作者:
王传奇; 高轩能; 李琨
华侨大学土木工程学院
Author(s):
WANG Chuan-qi;  GAO Xuan-neng;  LI Kun
College of Civil Engineering, Huaqiao University, Quanzhou 362021, China
关键词:
门式刚架;  变截面;  动力特性;  数值模拟;  滞回曲线;  延性
Keywords:
portal frames;  tapered members;  dynamic behavior;  numerical simulation analysis;  hysteretic curve;  ductility
分类号:
TU392.5
DOI:
10.11830/ISSN.1000-5013.2009.01.0075
文献标志码:
A
摘要:
考虑材料非线性,采用ANSYS程序建立变截面门式刚架动力特性的数值模拟分析模型.通过对不同跨度和柱长细比的变截面门式刚架的动力特性分析表明,变截面门式刚架结构的滞回曲线比较饱满,呈梭形,具有良好的塑性变形能力和滞回耗能能力.变截面门式刚架在低周反复循环荷载作用下发生了刚度与强度的退化,且程度不断加大.门式刚架结构的延性随着跨度或柱长细比的增大而降低; 当跨度大于42 m和柱长细比大于90后,门式刚架的刚度和强度退化速率加快,结构的延性迅速降低.变截面门式刚架的正负向荷载及相应的位移并不完全对称,表现出鲍辛格效应.
Abstract:
A dynamic numerical simulation model of a tapered portal frames considering the nonlinearity of the materials,established by ANSYS program.Dynamic modes analysis of tapered portal frames with different spans and slenderness ratio shows: the tapered portal steel frames own shuttle-shaped plump hysteretic curves with good energy dissipation and good plastic deformation.The rigidity and strength of the tapered portal steel frame degrade increasingly under the low cyclic loading.The ductility of the tapered portal steel frames reduces evidently with increasing spans or column slenderness ratios; when the span is larger than 42 m and the slenderness ratio is greater than 90,the degradation of the stiffness and strength of the portal frame accelerates,and ductility of the structure decreases rapidly.Under the forward and reverse loading on the frames,the corresponding displacements are not entirely symmetrical,appearing the Bauschinger’s effects.

参考文献/References:

[1] 谭巍, 牟宗磊. 轻型门式刚架结构体系最优柱距研究 [J]. 建筑钢结构进展, 1999(1):16-21.
[2] 王文明. 变截面轻型门式刚架结构体系的稳定研究 [D]. 北京:清华大学, 1998.
[3] KARAMANOS S, SPYROS A K. Earthquake effects on low-rise steel buildings in high seismicity areas:A designer′s view [J]. Journal of Constructional Steel Research, 1997, (1-2):115-128.
[4] 章军, 王元清, 陈宏. 地震作用下门式刚架轻型房屋钢结构的设计与分析 [J]. 四川建筑科学研究, 2004(2):74-77.doi:10.3969/j.issn.1008-1933.2004.02.029.
[5] 干洪, 魏东. 变截面框架结构动力分析与抗震计算 [J]. 安徽建筑工业学院学报(自然科学版), 2003(3):1-5.doi:10.3969/j.issn.1006-4540.2003.04.001.
[6] 徐贵章. 变截面刚架结构抗震设计的分析与计算 [J]. 工程抗震, 1997(2):6-10.
[7] KWON H D, PARK Y P. Dynamic characteristics of stepped cantilever beams connected with a rigid body [J]. Journal of Sound and Vibration, 2002(4):701-717.doi:10.1006/jsvi.2001.4185.
[8] HWANG J S, CHANG K C, LEE G C. Shaking table tests of pinned-base steel gable frame [J]. Journal of Structural Engineering, 1989, (12):3031-3043.doi:10.1061/(ASCE)0733-9445(1989)115:12(3031).
[9] HWANG J S, CHANG K C, LEE G C. Seismic behavior of gable frame consisting of tapered members [J]. Journal of Structural Engineering, 1991(3):808-821.doi:10.1061/(ASCE)0733-9445(1991)117:3(808).
[10] 中国工程建设标准化协会. CECS 102:2002.门式刚架轻型房屋钢结构技术规程 [S]. 北京:中国计划出版社, 2003.
[11] 陈城. 变截面宽肢薄腹构件滞回性能的试验研究和数值模拟 [D]. 上海:同济大学, 2002.

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备注/Memo

备注/Memo:
福建省科技计划重点项目(2006H0030); 厦门市科技计划项目(3502Z20073036); 福建省建设科技计划项目(闽建科05-22-17)
更新日期/Last Update: 2014-03-23