|本期目录/Table of Contents|

[1]周天华,何保康,周绪红,等.高强冷弯薄壁型钢轴压长柱受力性能试验研究[J].建筑科学与工程学报,2005,22(04):65-71.
　ZHOU Tian-hua,HE Bao-kang,ZHOU Xu-hong,et al.Experimental research on bearing capacity of high-strength cold-formed thin-walled steel long columns[J].Journal of Architecture and Civil Engineering,2005,22(04):65-71.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
22卷
期数:
2005年04期
页码:
65-71
栏目:
出版日期:
2006-12-20

文章信息/Info

Title:
Experimental research on bearing capacity of high-strength cold-formed thin-walled steel long columns
作者:
周天华1,何保康2,周绪红1,刘永健3,蒋路2,刘彦军2,王彦敏4
1. 长安大学 建筑工程学院,陕西 西安 710061; 2. 西安建筑科技大学 土木工程学院,陕西 西安 710055; 3. 长安大学 公路学院,陕西 西安 710064; 4. 博思格建筑系统,上海 201613
Author(s):
ZHOU Tian-hua1, HE Bao-kang2, ZHOU Xu-hong1, LIU Yong-jian3, JIANG Lu2, LIU Yan-jun2, WANG Yan-min4
1. School of Architectural Engineering, Chang'an University, Xi'an 710061, China; 2. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; 3. School of Highway, Chang'an University, Xi'an 710064, China; 4. Bluescope Buildings, Shanghai 201613, China
关键词:
高强冷弯薄壁型钢;  长柱;  试验研究;  稳定承载力
Keywords:
high-strength cold-formed thin-walled steel;  long column;  experimental research;  load capacity of stability
分类号:
TU392.1
DOI:
-
文献标志码:
A
摘要:
进行了15组G550级高强冷弯薄壁型钢方管截面轴压长柱的试验研究,考察了其受力特性及破坏特征,试件的壁厚均为0.6 mm,截面板件宽厚比分为42、58、75三类,长细比分为40、60、80、100、120五类。试验研究结果表明:直接利用中国现行规范GB 50018-2002对G550级高强冷弯薄壁型钢轴压构件进行稳定承载力计算的结果与试验结果相差较大,偏于不安全,必须进行修正。通过对试验结果的比较分析,给出了考虑构件截面板组相关性影响时,采用规范GB 50018-2002计算G550级高强冷弯薄壁型钢轴压构件稳定承载力的建议,建议方法所得结果与试验结果吻合良好,且偏于安全,可供修订规范和设计时参考。
Abstract:
The 15 groups long column specimens of box section cold-formed grade G550 high-strength steel were tested under axial compression load. The load capacity and the failure characteristic of the specimens were analyzed. The wall thickness of specimens are all 0.6 mm; the ratios of width to thickness are 42,58,75 and the slenderness ratios are 40,60,80,100,120. The results of experimental research show that using Chinese code GB 50018-2002 to calculate the load capacity of grade G550 high-strength cold-formed thin-walled steel long column is unsafe. By comparing the test results with the calculation by Chinese code GB 50018-2002, a suggestion method of calculating load capacity for the grade G550 high-strength cold-formed thin-walled steel long columns by using Chinese code GB 50018-2002 was presented with consideration of the plate-group interaction of element. The results calculated by suggestion method agree quite well with the test results and are safety. So the suggestion method can be used for the reference to engineering design and revising the code.

参考文献/References:

[1] GB 50018-2002,冷弯薄壁型钢结构技术规范[S].
[2] 周天华,周绪红,何保康,等.G550级高强薄板钢材的材性及应用[J].建筑科学与工程学报,2005,22(2):43-46.
[3] YANG De-mao,HANCOCK G J,KIM J R R.Compression tests of cold-reduced high strength steel sections:Ⅱ-long columns[J].Journal of Structural Engineering,2004,130(11):1 782-1 789.
[4] 周天华,何保康,周绪红,等.高强冷弯薄壁型钢轴压短柱受力性能试验研究[J].建筑科学与工程学报,2005,22(3):36-44.

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　TIAN Hong-wei,ZHAO Jun-hai,WEI Jin.Ultimate Bearing Capacity of Concrete-filled Circular Steel Tubular Long Columns with Axial Compression[J].Journal of Architecture and Civil Engineering,2007,24(04):74.
[2]周天华,何保康,周绪红,等.高强冷弯薄壁型钢轴压短柱受力性能试验研究[J].建筑科学与工程学报,2005,22(03):36.
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备注/Memo

备注/Memo:
收稿日期:2005-08-26
作者简介:周天华(1963-),男,陕西西乡人,长安大学副教授,工学博士.E-mail:zhouth@chd.edu.cn
更新日期/Last Update: 2006-12-20