RESEARCH ON CALCULATING METHOD FOR FIRE PROTECTION OF CONCRETE-FILLED STEEL TUBULAR COLUMNS
-
摘要: 计算结果表明,作用在钢管混凝土柱上的荷载对其耐火极限及防火保护层厚度影响很大。基于数值计算结果及课题组前期的研究成果,提出了按规范ISO-834或GBT9978-1999规定的标准升温曲线升温作用下,考虑火灾荷载比影响的钢管混凝土柱防火保护层厚度的实用计算方法,计算结果和数值计算与试验结果均基本吻合。Abstract: The calculating results illustrate that the load acting on a concrete-filled steel tubular column has a great influence on the fire resistance time and fire protection thickness.Based on the numerical results and the prophase achievements of our research group, formulae which consider the influence of load ratio under fire, for the calculation of fire spray materials thickness of the composite columns under ISO-834 or GB/T 9978-1999 Standard Fire Curve are presented in this paper.Generally, the calculated results agree basically with the numerical and experimental results.
-
[2] Han Linhai, Zhao Xiaoling, Yang Youfu, et al.Experimental Study and Calculation of Fire Resistance of Concrete-Filled Hollow Steel Columns.Journal of Structural Engineering, ASCE, 2003, 129(3):346~356 韩林海.钢管混凝土结构.北京:科学出版社, 2000 [3] Han Linhai, Yang Youfu, Xu Lei.An Experimental Study and Calculations of the Fire Resistance of Concrete-Filled SHS and Columns.Journal of Constructional Steel Research, 2003, 59(4):427~452 [4] 韩林海, 贺军利, 吴海江, 等.圆形截面钢管混凝土柱耐火性的试验研究.土木工程学报, 2000, 33(3):31~36 [5] 韩林海, 徐蕾.带保护层方钢管混凝土柱耐火极限的试验研究.土木工程学报, 2000, 33(6):63~69 [6] 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.土木工程学报, 2002, 35(6):6~13 [7] 杨有福, 韩林海, 徐蕾, 等.钢管混凝土柱防火保护层厚度实用计算方法研究.钢结构, 2001, 16(6):39~42 [8] 杨有福.矩形截面钢管混凝土构件力学性能的若干关键问题研究:[博士学位论文].哈尔滨:哈尔滨工业大学, 2003 [9] 建筑钢结构防火技术规程(送审稿).杭州:2003 [10] 中国工程建设标准化协会.矩形钢管混凝土设计规程(送审稿).2003 [11] DBJ 13-51-2003 钢管混凝土结构技术规程.福州:2003 [12] GB 14907-2002 钢结构防火涂料 [13] CECS 24∶90 钢结构防火涂料应用技术规范.北京:计划出版社, 1990 [14] GB 50045-95 高层民用建筑设计防火规范
点击查看大图
计量
- 文章访问数: 131
- HTML全文浏览量: 9
- PDF下载量: 72
- 被引次数: 0