«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

37卷

期数:

2020年03期

页码:

91-98

栏目:

出版日期:

2020-05-30

文章信息/Info

Title:

Fire Resistance of Square Tubed Steel Reinforced Concrete Columns in Relative Fires

文章编号:

1673-2049(2020)03-0091-08

作者:

张玉琢¹,刘雨杰²,吕学涛³

(1. 沈阳建筑大学 土木工程学院,辽宁 沈阳 110168; 2. 中铁建工集团山东有限公司,山东 青岛 266000; 3. 佛山科学技术学院 交通与土木建筑学院,广东 佛山 528000)

Author(s):

ZHANG Yu-zhuo¹, LIU Yu-jie², LYU Xue-tao³

(1. School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, Liaoning, China; 2. China Railway Construction Engineering Group Shandong Co., Ltd, Qingdao 266000, Shandong, China; 3. School of Transportation and Civil Engineering, Foshan University, Foshan 528000, Guangdong, China)

关键词:

方钢管约束型钢混凝土柱;  相对两面受火;  抗火性能;  含钢率

Keywords:

square tubed steel reinforced concrete column;  relative fire;  fire resistance;  steel content

分类号:

TU352.5

DOI:

10.19815/j.jace.2018.05050

文献标志码:

A

摘要:

为研究相对两面受火的方钢管约束型钢混凝土柱的耐火极限,运用ABAQUS建立了ISO 834标准火灾作用下方钢管约束型钢混凝土柱的有限元模型,包括温度场分析模型和耐火极限分析模型,用已有的相关试验进行验证,并分析了截面温度场和力学性能的变化规律。在此基础上分析荷载比、计算长度、型钢含钢率、截面尺寸、混凝土强度等参数对构件耐火极限的影响规律。基于上述规律并结合大量计算结果定量给出了相对两面受火的方钢管约束型钢混凝土柱的耐火极限简化计算式。结果表明:荷载比和计算长度对构件耐火极限影响较大,随着荷载比和计算长度的增加,构件的耐火极限呈线性降低; 截面尺寸对构件的耐火极限影响较大,随着截面尺寸的增加,构件的耐火极限呈线性增加; 随着型钢含钢率的增加,构件的耐火极限增加并不明显; 耐火极限计算式计算精度良好,可为相对两面受火的方钢管约束型钢混凝土柱抗火设计提供参考。

Abstract:

In order to study the fire resistance of square tubed steel reinforced concrete columns in relative fires, the finite element model of square tubed steel reinforced concrete columns under ISO 834 standard fire curve was established by using ABAQUS, including temperature field analysis model and fire resistance analysis model. The model was analyzed and verified by the existing related experiments. The change rules of the temperature field and mechanical properties of the section were analyzed.On this basis, the influences of load ratio, calculation length,steel content of steel, dimensions, concrete strength and other parameters on the fire resistance of the component were analyzed. Based on the above rules and combined with a large number of calculation results, the simplified calculation formula for the fire resistance of the confined steel concrete columns with square steel tubes on two sides subjected to fire was given quantitatively. The results show that the load ratio and the calculated length have great influence on the fire resistance, with the increase of the load ratio and the calculation length, the fire resistance of components decrease linearly. The section dimensions has a greater influence on the fire resistance of the component, and the fire resistance of the component increases with the section dimensions. With the increase of the steel content of steel, the increase of the fire resistance of the components is not obvious.The formula has a good calculation accuracy and can be used for the concrete column fire resistance of square steel tubes confined by two sides of fire.

参考文献/References:

[1] 周绪红,刘界鹏.钢管约束混凝土柱的性能与设计[M].北京:科学出版社,2010.
ZHOU Xu-hong,LIU Jie-peng.Performance and Design of Steel Tube Confined Concrete Column[M].Beijing:Science Press,2010.
[2]TOMII M,SAKINO K,WATANBE K,et al.Lateral Load Capacity of Reinforced Concrete Short Columns Confined by Steel Tube[C]//ASCCS.Proceedings of the International Speciality Conference on Concrete Filled Steel Tubular Structures.Harbin:ASCCS,1985:19-26.
[3]SAKINO K,SUN Y P,TOSHIHIKO N.Behaviour of Concrete Confined in Square Steel Tube Under Axial Compression:Part 1:Details of Test Specimens[C]//AIJ.Summaries of Technical Papers of Annual Meeting of Architectural Institute of Japan:Structures II.Tokyo:AIJ,1991:215-216.
[4]马忠吉,乔雷涛,王 伟,等.矩形钢管约束钢筋混凝土超短柱滞回性能试验[J].哈尔滨工业大学学报,2011,43(8):21-25.
MA Zhong-ji,QIAO Lei-tao,WANG Wei,et al.Experiment on the Rectangular Tubed RC Ultra Short Columns Under Axial Compression and Lateral Cyclic Load[J].Journal of Harbin Institute of Technology,2011,43(8):21-25.
[5]杨有福,孟春媛.方中空夹层钢管混凝土横向局压性能研究[J].建筑科学与工程学报,2015,32(4):92-98.
YANG You-fu,MENG Chun-yuan.Research on Performance of Square CFDST Under Lateral Partial Compression[J].Journal of Architecture and Civil Engineering,2015,32(4):92-98.
[6]乔建刚.钢管约束型钢高强混凝土短柱滞回性能试验研究[D].西安:长安大学,2009.
QIAO Jian-gang.Experimental Research on Seismic Behavior of Steel Tube Confined Steel Reinforced High Strength Concrete Short Columns[D].Xi’an:Chang’an University,2009.
[7]刘发起.火灾下与火灾后圆钢管约束钢筋混凝土柱力学性能研究[D].哈尔滨:哈尔滨工业大学,2014.
LIU Fa-qi.Fire and Post-fire Behaviours of Circular Steel Tube Confined Reinforced Concrete Columns[D].Harbin:Harbin Institute of Technology,2014.
[8]王卫永,宋柯岩,刘界鹏.高温下钢管约束型钢混凝土柱的受力性能[J].土木建筑与环境工程,2017,39(3):58-66.
WANG Wei-yong,SONG Ke-yan,LIU Jie-peng.Fire Performance of Circular Tubed Steel Reinforced Concrete Columns[J].Journal of Civil,Architectural & Environmental Engineering,2017,39(3):58-66.
[9]LIE T T.Fire Resistance of Circular Steel Columns Filled with Bar-reinforced Concrete[J].Journal of Structural Engineering,1994,120(5):1489-1509.
[10]吕学涛.非均匀受火的方钢管混凝土柱抗火性能与设计[D].哈尔滨:哈尔滨工业大学,2010.
LV Xue-tao.Fire Resistance Behaviour and Design of Concrete-filled Square Hollow Columns in Non-uniform Fires[D].Harbin:Harbin Institute of Technology,2010.
[11]BS EN 1994-1-2:2005,Eurocode 4.Design of Composite Steel and Concrete Structures — Part 1-2:General Rules Structural Fire Design[S].
[12]LIE T T,STRINGER D C.Calculation of the Fire Resistance of Steel Hollow Structural Section Columns Filled with Plain Concrete[J].Canadian Journal of Civil Engineering,1994,21(3):382-385.
[13]成晓娟.轴压型钢混凝土(SRC)柱抗火全过程试验研究[D].苏州:苏州科技学院,2010.
CHENG Xiao-juan.Experimental Study on the Centrically Axial Loaded SRC Columns Under Fire Including Whole Process of Heating and Cooling[D].Suzhou:Suzhou University of Science and Technology,2010.
[14]王宣鼎.钢管约束型钢混凝土短柱轴压及偏压力学性能研究[D].哈尔滨:哈尔滨工业大学,2013.
WANG Xuan-ding.Research on Axial and Eccentric Behavior of Tubed Steel Reinforced Concrete Stub Concrete Stub Columns[D].Harbin:Harbin Institute of Technology,2013.
[15]闫 标.钢管约束型钢混凝土中长柱静力性能及设计方法研究[D].兰州:兰州大学,2013.
YAN Biao.Research on Static Behavior and Design Method of Tubed Steel Reinforced Concrete Slender Columns[D].Lanzhou:Lanzhou University,2013.
[16]吕学涛,杨 华,张素梅.非均匀火灾作用下方钢管混凝土柱受力机理研究[J].建筑结构学报,2013,34(3):35-44.
LV Xue-tao,YANG Hua,ZHANG Su-mei.Fire Resistance Behavior and Mechanism of Concrete-filled Square Hollow Columns in Non-uniform Fires[J].Journal of Building Structures,2013,34(3):35-44.
[17]LIU F Q,YANG H,GARDNE L.Post-fire Behaviour of Eccentrically Loaded Reinforced Concrete Columns Confined by Circular Steel Tubes[J].Journal of Constructional Steel Research,2016,122:495-510.
[18]刘发起,潘雁翀,杨 华.考虑端部轴向约束的火灾下钢管混凝土柱力学性能有限元研究[J].建筑结构学报,2015,36(增1):310-317.
LIU Fa-qi,PAN Yan-chong,YANG Hua.FEA on Mechanical Behavior of Axially Restrained Concrete-filled Steel Tubular Columns Subjected to Fire[J].Journal of Building Structures,2015,36(S1):310-317.
[19]吕学涛,刘雨杰,张玉琢.阴角邻面火灾作用下L形钢管混凝土柱耐火极限研究[J].火灾科学,2018,27(1):30-37.
LV Xue-tao,LIU Yu-jie,ZHANG Yu-zhuo.Fire Resistance of L-shaped Concrete Filled Steel Tubular Columns with Adjacent Fire[J].Fire Safety Science,2018,27(1):30-37.
[20]张玉琢,刘雨杰,吕学涛.中空夹层方钢管再生混凝土柱耐火极限研究[J].钢结构,2018,33(4):110-115.
ZHANG Yu-zhuo,LIU Yu-jie,LYU Xue-tao.Research on Fire Resistance Limit of Recycled Concrete Filled Double Skin Steel Tubular Columns with Square Hollow Section[J].Steel Construction,2018,33(4):110-115.
?

相似文献/References:

[1]聂少锋,叶梦娜,武杨凡,等.方钢管约束型钢混凝土柱-RC环梁节点抗震性能[J].建筑科学与工程学报,2019,36(02):84.
　NIE Shao-feng,YE Meng-na,WU Yang-fan,et al.Seismic Behavior of Square Tube Confined Steel-reinforced Concrete Column-RC Ring Beam Joint[J].Journal of Architecture and Civil Engineering,2019,36(03):84.

备注/Memo

备注/Memo:

收稿日期:2019-06-07
基金项目:辽宁省“兴辽英才计划”项目(XLYC1902027); 天津重大专项项目(18ZXGDGX00030)
作者简介:张玉琢(1988-),男,辽宁阜新人,副教授,工学博士,E-mail:zhangyuzhuo@sjzu.edu.cn。
通信作者:吕学涛(1979-),男,河北保定人,副教授,工学博士,E-mail:lxtwww30@sina.com。

常用功能

更新日期/Last Update: 2020-06-08