空心钢管混凝土及中空注水构件的防火性能研究

余敏; 查晓雄

doi:10.13204/j.gyjz201106007

空心钢管混凝土及中空注水构件的防火性能研究

doi: 10.13204/j.gyjz201106007

余敏,
查晓雄

1.
哈尔滨工业大学深圳研究生院,广东深圳518055

详细信息

作者简介:
第一作者：余敏, 男, 1982年出生, 博士研究生。E-mail：yumin@hitsz.edu.cn

中图分类号: TU398.9
计量
- 文章访问数: 99
- HTML全文浏览量: 9
- PDF下载量: 144
- 被引次数: 0
出版历程
- 收稿日期: 2011-02-10
- 刊出日期: 2011-06-20

RESEARCH ON THE FIRE RESISTANCE BEHAVIOUR OF HOLLOW CONCRETE FILLED STEEL TUBE COLUMNS AND WITH WATER

1.
Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 518055,China

摘要

摘要: 通过有限元方法对具有相同外钢管尺寸的不同空心率的钢管混凝土，在不同的火灾荷载下的耐火性能进行分析，并对中空注水影响空心钢管混凝土的耐火性能进行研究。结果表明：火灾荷载比较大时，钢管混凝土构件的耐火时间随着空心率的增加先增加后减小；火灾荷载比较小时，构件的耐火时间随着空心率的增加基本呈线性减小。在火灾荷载比较大时，中空注水对耐火时间的影响很小；在火灾荷载比较小时，注水能明显地改善构件的耐火时间。在此基础上，给出不同火灾荷载比下空心钢管混凝土保护层厚度的简化计算方法和建议。
- 空心钢管混凝土 /
- 中空注水 /
- 防火性能 /
- 火灾荷载比 /
- 保护层厚度
Abstract: Non-linear finite element method is used to simulate the behaviors of H-CFST columns with different hollow ratio under different fire load ratio, which have the same steel tube size.Results show that when the term fire load ratio is relatively larger, fire resistance time of CFST firstly increases then decreases as hollow ratio increases.While fire load ratio is relatively smaller, fire resistance time of columns linear decreases as hollow ratio increases.When the hollow filled with water, the fire resistance time is almost the same under lager fire load ratio, but it can be obviously improved under small fire load ratio.Based on this conclusion and according to Chinese code, furthermore, a method of calculating the thickness of fireproof paint of H-CFST columns is given.
- hollow concrete-filled steel tube /
- hollow with water /
- fire resistance /
- fire load ratio /
- thickness of fireproof paint

HTML全文

参考文献(30)

钟善桐.钢管混凝土统一理论研究与应用[M].北京:清华大学出版社,2006.

[2] Lie T T, Chabot M. Experimental Studies on the Fire Resistance?of Hollow Steel Columns Filled with Plain Concrete[R]. NRC CNRC Internal Report No.611,1992.

[3] Lie T T. Fire Resistance of Circular Steel Columns Filled with BarReinforced Concrete [J]. Journal of Structural Engineering,?ASCE,1994,120(5):1489-1509.

[4] Lie T T, Stringer D C . Calculation of the Fire Resistance of Steel?Hollow Structure Section Columns Filled with Plain Concrete[J]. Canadian Journal of Civil Engineering,1994,21(3):382-385.

[5] Kodur V K R. Fire Resistance of Concrete-Filled Steel Columns?[J]. Construction Technology Update,1997(6):1-4.

[6] Kodur V K R, Mackinnon D H. Simplified Design of Concrete-Filled Hollow Structural Steel Columns for Fire Endurance[J]. Journal of Constructional Steel Research,1998,51(1):21-36.

[7] Kodur V K R, Mackinnon D H. Design of Concrete-Filled Hollow?Structural Steel Columns for Fire Endurance[J]. Engineering?Journal, AISC ,2000,37(1):13-24.

[8] Kodur V K R, Lie T T. Fire Performance of Concrete-Filled?Hollow Steel Columns [J]. Journal of Fire Protection?Engineering,1995(7):89-97.

[9] Sakumoto Y, Okada T, Yoshida M, et al. Fire Resistance of?Concrete-Filled, Fire-Resistant Steel-Tube Columns [J]. Journal?of Materials in Civil Engineering,1994,6(2):169-184.

[10] Wang Y C . Some Considerations in the Design of Unprotected?Concrete-Filled Steel Tubular Columns Under Fire Conditions?[J]. Journal of Constructional Steel Research,1997,44(3):203-223.

[11] Wang Y C . A Simple Method for Calculating the Fire Resistance of?Concrete-Filled CHS Columns [J]. Journal of Constructional Steel?Research,2000,44(3):203-223.

[12] Tan K H, Tang C Y. Interaction Model for Unprotected Concrete?Filled Steel Columns Under Standard Fire Conditions [J]. Journal?of Structural Engineering,2004,130(9):1405-1413.

[13] Huang Z F, Tan K H. Analytical Fire Resistance of Axially?Restrained Steel Columns [J]. Journal of Structural Engineering,2003,129(11):1531-1537.

[14] Zha X X. FE Analysis of Fire Resistance of Concrete Filled CHS?Columns [J]. Journal of Constructional Steel Research,2003,54(3):365-386.

[15] Yin J, Zha X X, Li L Y. Fire Resistance of Axially Loaded?Concrete Filled Steel Tube Columns [J]. Journal of Constructional?Steel Research,2006,65(12):701-706.

[16] Han L H, Yang Y F, Xu L. An Experimental Study and?Calculation on the Fire Resistance of Concrete-Filled SHS and?RHS Columns [J]. Journal of Constructional Steel Research,2003,28(2):1135-1142.

[17] Han L H, Zhao X L, Yang Y F, et al. Experimental Study and?Calculation of Fire Resistance of Concrete-Filled Hollow Steel?Columns [J]. Journal of Structural Engineering,2003,129(3):346-356.

[18] 冯九斌,韩林海,经建生,等.钢管高强混凝土轴压柱耐火极限的试验研究[J].消防科学与技术,2001(1):7-9.

[19] 韩林海,徐蕾,冯九斌,等.钢管混凝土柱耐火极限和防火设计实用方法研究[J].土木工程学报,2002,35(6):6-13.

[20] European Committee for Standardization, EN 1994-1-2∶2005.?Design of Composite Steel and Concrete Structures Part 1.2:?General Rules, Structural Fire Design[S].2005.

[21] CECS 200∶2006建筑钢结构防火技术规范[S].

[22] Blaevicˇius , Kvedaras A K. Experimental Investigation into Fire?Resistance of H-CFST Columns Under Axial Compression [J]. Journal of Civil Engineering and Management,2007,8(1):1-10.

[23] CECS 254∶2009空心钢管混凝土结构技术规程[S].

[24] Yu M, Zha X X, Ye J Q, et al. A Unified Formulation for Hollow?and Solid Concrete-Filled Steel Tube Columns Under Axial?Compression [J]. Engineering Structures,2010,32(4):1046-1053.

[25] Buchanan A H. Structural Design for Fire Safety [M]. New?York: John Wiley Sons, Ltd,2001.

[26] 查晓雄,钟善桐,余敏.空心钢管混凝土防火计算及规范编制[C]//第五届全国钢结构防火及防腐技术研讨会暨第三届全国结构抗火学术交流会议论文集.济南:2009:38-47.

[27] 韩林海.钢管混凝土结构理论与实践[M].2版.北京:科学出版社,2007.

[28] Yu M, Zha X X, Ye J Q, et al. Fire Responses and Resistance of?Concrete-Filled Steel Tubular Frame Structures [J]. International?Journal of Structural Stability and Dynamics,2010,10(2):253-271.

[29] 杨世铭,陶文铨.传热学[M].4版.北京:高等教育出版社,2009.

[30] Dassault Systmes. Abaqus Version 6.8 Documentation Collection?[M]. Simulia Corp.:2008.

施引文献

资源附件(0)

访问统计