1.重庆大学土木工程学院,重庆 400045
2.山地城镇建设与新技术教育部重点实验室(重庆大学),重庆400045
王卫永(1982—),男,教授,博士。主要从事钢结构抗火研究。E‑mail: wywang@cqu.edu.cn
收稿:2022-05-24,
修回:2022-08-17,
纸质出版:2024-02-15
移动端阅览
王卫永,杨启波,李翔.高温下焊接Q960钢H形截面柱局部稳定设计方法[J].防灾减灾工程学报,2024,44(01):183-191.
WANG Weiyong,YANG Qibo,LI Xiang.Local Buckling Design Method of Welded Q960 Steel H‑section Column at Elevated Temperatures[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(01):183-191.
王卫永,杨启波,李翔.高温下焊接Q960钢H形截面柱局部稳定设计方法[J].防灾减灾工程学报,2024,44(01):183-191. DOI: 10.13409/j.cnki.jdpme.20220524001.
WANG Weiyong,YANG Qibo,LI Xiang.Local Buckling Design Method of Welded Q960 Steel H‑section Column at Elevated Temperatures[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(01):183-191. DOI: 10.13409/j.cnki.jdpme.20220524001.
为考察焊接Q960钢H形截面轴心受压柱局部稳定性能,采用ABAQUS软件建立有限元模型,经试验数据验证后,分析翼缘宽厚比、腹板高厚比、构件温度、构件长细比、初始几何缺陷和残余应力等参数对焊接Q960钢H形截面轴心受压柱局部屈曲强度的影响。研究表明,轴心受压柱的局部屈曲承载力主要与截面尺寸及构件温度有关。采用多国规范对试验试件的局部屈曲承载力进行计算,发现现有规范的设计方法不适用于高温下焊接Q960钢H形截面轴心受压柱局部屈曲承载力的计算。根据有限元分析结果提出焊接Q960钢H形截面轴心受压柱局部屈曲设计方法,与试验数据和有限元分析结果的对比表明所提方法能较准确地计算焊接Q960钢H形截面轴心受压柱不同温度下的局部屈曲承载力。
In order to study the local stability of Q960 welded H-section axial compression columns, ABAQUS software package is employed to establish the finite element model. After verified by the experimental data, the effects of different parameters, such as flange width to thickness ratio, web height to thickness ratio, member temperature, member slenderness ratio, initial geometric imperfection and residual stress, on the local buckling ultimate strength of Q960 welded H-section axial compression columns are analyzed. The results show that the local buckling capacity of axially compressed columns is mainly related to the section dimension and member temperature. It is found that the design method of current codes is not suitable for estimating the local buckling capacity of welded Q960 steel H-section axial compression columns at high temperatures. According to test data and finite element analysis results, a local buckling design method for welded Q960 steel H-section axial compression columns is proposed. The comparison with experimental data and finite element analysis results shows that the proposed method can accurately calculate the local buckling capacity of welded Q960 steel H-section axial compression columns at different temperatures.
郭小农 , 宗绍晗 , 于孟同 , 等 . Q690高强钢梁火灾后承载性能研究 [J]. 建筑钢结构进展 , 2021 , 23 ( 11 ): 103 ‑ 111 .
Guo X N , Zong S H , Yu M T , et al . The bearing capacity of Q690 high‑strength steel beams after fire [J]. Progress in Steel Building Structures , 2021 , 23 ( 11 ): 103 ‑ 111 . (in Chinese)
熊晓莉 , 王田 , 谌磊 . 国产Q460高强钢焊接T形截面残余应力分布试验研究 [J]. 建筑钢结构进展 , 2021 , 23 ( 9 ): 42 ‑ 53 .
Xiong X L , Wang T , Chen L . Experimental study on residual stress in welded T‑section using domestic Q460 high strength steel [J]. Progress in Steel Building Structures , 2021 , 23 ( 9 ): 42 ‑ 53 . (in Chinese)
何保康 . 轴心压杆局部稳定试验研究 [J]. 西安建筑科技大学学报(自然科学版) , 1985 , 41 ( 1 ): 23 ‑ 37 .
He B K . Experimental study of local buckling of the centrally compressed members [J]. Journal of Xi'an University of Architecture & Technology (Natural Science Edition) , 1985 , 41 ( 1 ): 23 ‑ 37 . (in Chinese)
Wang W Y , Kodur V , Yang X C , et al . Experimental study on local buckling of axially compressed steel stub columns at elevated temperatures [J]. Thin‑Walled Structures , 2014 , 82 ( 3 ): 33 ‑ 45 .
Quiel S E , Garlock M E M . Calculating the buckling strength of steel plates exposed to fire [J]. Thin‑Walled Structures , 2010 , 48 ( 9 ): 684 ‑ 695 .
Couto C , Real P V , Lopes N , et al . Effective width method to account for the local buckling of steel thin plates at elevated temperatures [J]. Thin‑Walled Structures , 2014 , 84 ( 6 ): 134 ‑ 149 .
Couto C , Real P V , Lopes N , et al . Resistance of steel cross‑sections with local buckling at elevated temperatures [J]. Journal of Constructional Steel Research , 2015 , 109 ( 3 ): 101 ‑ 114 .
Gardner L , Fieber A , Macorini L . Formulae for calculating elastic local buckling stresses of full structural cross‑sections [J]. Structures , 2019 , 17 ( 1 ): 2 ‑ 20 .
施刚 , 林错错 , 王元清 , 等 . 高强度钢材工字形截面轴心受压短柱局部稳定试验研究 [J]. 建筑结构学报 , 2012 , 33 ( 12 ): 20 ‑ 30 .
Shi G , Lin C C , Wang Y Q , et al . Experimental study on local buckling of high strength steel I‑section stub columns under axial compression [J]. Journal of Building Structures , 2012 , 33 ( 12 ): 20 ‑ 30 . (in Chinese)
施刚 , 林错错 , 周文静 , 等 . 960 MPa高强度钢材轴心受压构件局部稳定试验研究 [J]. 建筑结构学报 , 2014 , 35 ( 1 ): 126 ‑ 135 .
Shi G , Lin C C , Zhou W J , et al . Experimental study on local buckling of 960 MPa high strength steel columns under axial compression [J]. Journal of Building Structures , 2014 , 35 ( 1 ): 126 ‑ 135 . (in Chinese)
李翔 , 王卫永 , 于克强 . 高温下轴心受压高强Q690钢柱的局部稳定 [J]. 建筑钢结构进展 , 2021 , 23 ( 3 ): 54 ‑ 63 .
Li X , Wang W Y , Yu K Q . Local buckling of Q690 high‑strength steel columns subjected to axial compression at elevated temperature [J]. Progress in Steel Building Structures , 2021 , 23 ( 3 ): 54 ‑ 63 . (in Chinese)
Wang W Y , Li X , Al‑azzani H . Experimental study on local buckling of high‑strength Q960 steel columns at elevated temperatures [J]. Journal of Constructional Steel Research , 2021 , 183 ( 4 ): 106716 .
Wang W Y , Zhang Y H , Xu L , et al . Mechanical properties of high‑strength Q960 steel at elevated temperature [J]. Fire Safety Journal , 2020 , 114 ( 4 ): 103010 .
钢结构工程施工质量验收标准 : GB 50205—2020 [S]. 北京 : 中国计划出版社 , 2020 .
张娟 . 高强Q690钢焊接截面柱受火后残余应力及受力性能研究 [D]. 重庆 : 重庆大学 , 2019 .
Zhang J . Study on residual stress and load capacity of welded high‑strength Q690 steel column after fire exposure [D]. Chongqing : Chongqing University , 2019 . (in Chinese)
钢结构设计标准 : GB 50017—2017 [S]. 北京 : 中国建筑工业出版社 , 2017 .
Specification for structural steel buildings:AI SC 360—16 [S]. Chicago : American Institute of Steel Construction , 2016 .
Eurocode 3:Design of steel structures,Part 1‑5:Plated structural elements:EN 1993‑1‑5 [S]. Brussels : European Committee for Standardization , 2006 .
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
苏公网安备32010202012147号
