|本期目录/Table of Contents|

[1]宋晓勇,邹银生,涂文戈,等.受火钢筋混凝土柱截面极限承载力研究[J].建筑科学与工程学报,2005,22(04):61-64.
　Research on ultimate load capacity of cross section of reinforced concrete columns exposing to fire.Research on ultimate load capacity of cross section of reinforced concrete columns exposing to fire[J].Journal of Architecture and Civil Engineering,2005,22(04):61-64.
点击复制

受火钢筋混凝土柱截面极限承载力研究(PDF)
分享到：

《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:
61-64
栏目:
出版日期:
2006-12-20

文章信息/Info

Title:
Research on ultimate load capacity of cross section of reinforced concrete columns exposing to fire
作者:
宋晓勇;邹银生;涂文戈;邓济玉;
湖南大学 结构工程研究所,湖南 长沙 410082
Author(s):
Research on ultimate load capacity of cross section of reinforced concrete columns exposing to fire
Institute of Structural Engineering, Hunan University, Changsha 410082, China
关键词:
钢筋混凝土柱;  火灾;  极限承载力;  截面尺寸
Keywords:
reinforced concrete column;  fire;  ultimate load capacity;  section size
分类号:
TU375.3
DOI:
-
文献标志码:
A
摘要:
用差分分析法对四面受火钢筋混凝土矩形柱截面温度场进行了分析,并用有限元方法计算了受火后一定温度场下柱截面极限承载力,与试验结果对比吻合较好。在此基础上,对受火柱截面极限承载力的各个影响因素进行了分析,结果表明:增大柱的截面尺寸和纵筋配筋率有利于柱截面极限承载力,以及柱的抗火性能的提高; 增加保护层厚度也有利于提高柱截面的极限承载力,但是当保护层厚度增加到一定的程度以后,柱截面的极限弯矩就无法提高,因而只能在一定范围内提高柱的抗弯能力。
Abstract:
By using finite difference method, authors calculated the temperature of reinforced concrete columns with rectangular cross section. The ultimate load capacity of columns section with a certain temperature field distribution was also calculated by finite element method. The results were in good agreement with the test data. The effects of different parameters such as cross section size, concrete cover, arrangement of reinforced steel bars, compressive strength of concrete on the ultimate capacity of the rectangular cross section were analyzed.It is concluded that the increase of dimensions, reinforced ratio and concrete cover has a positive effect on columns exposing to fire. Furthermore, the increase of concrete cover is limited in increasing the ultimate bending moment capacity of columns.

参考文献/References:

[1] 过镇海,时旭东.钢筋混凝土的高温性能及其计算[M].北京:清华大学出版社,2002.
[2] MACGREGOR J G.Reinforced Concrete[M].New Jersey:Prentice Hall,1997.
[3] TAN K H,TANG C Y.Interaction formula for reinforced concrete columns in fire conditions[J].ACI Structural Journal,2004,101(3):19-28.
[4] LIE T T,CELIKKOL B.Method to calculate the fire resistance of circular reinforced concrete columns[J].ACI Materials Journal,1991,88(12):84-91.
[5] DOTREPPE J C,FRANSSEN J M,BRULS A,et al.Experimental research on the determination of the main parameters affecting the behaviour of reinforced concrete columns under fire conditions[J].Magazine of Concrete Research,1996,179(49):117-127.
[6] SHI Xu-dong,TAN Teng-hooi,TAN Kang-hai,GUO Zhen-hai.Influence of concrete cover on fire resistance of reinforced concrete flexural members[J].Journal of Structural Engineering,2004,130(8):1 225-1 232.

相似文献/References:

[1]仇建磊,贡金鑫.基于简化修正压力场理论的钢筋混凝土柱荷载-变形分析[J].建筑科学与工程学报,2016,33(04):51.
　QIU Jian-lei,GONG Jin-xin.Analysis of Load-deformation of Reinforced Concrete Columns Based on Simplified Modified Compression Field Theory[J].Journal of Architecture and Civil Engineering,2016,33(04):51.
[2]田 力,胡 杨.汽车撞击和爆炸共同作用下钢筋混凝土柱的动力响应与破坏模式[J].建筑科学与工程学报,2017,34(01):41.
　TIAN Li,HU Yang.Dynamic Response and Failure Modes of Reinforced Concrete Columns Under Vehicle Impact and Blast[J].Journal of Architecture and Civil Engineering,2017,34(04):41.
[3]田 力,朱运华.冲击波和破片联合作用下RC柱的损伤分析[J].建筑科学与工程学报,2017,34(02):64.
　TIAN Li,ZHU Yun-hua.Damage Analysis of RC Column Subjected to Synergistic Effects of Blast Wave and Fragmentation[J].Journal of Architecture and Civil Engineering,2017,34(04):64.
[4]许 斌,王治原,陈洪兵.钢筋混凝土柱动力滞回性能两尺度数值模拟[J].建筑科学与工程学报,2017,34(03):16.
　XU Bin,WANG Zhi-yuan,CHEN Hong-bing.Numerical Simulation on Dynamic Hysteretic Behavior of Reinforced Concrete Columns with Two-scale Model[J].Journal of Architecture and Civil Engineering,2017,34(04):16.
[5]张勤,贡金鑫.弯剪破坏钢筋混凝土柱的荷载-变形关系[J].建筑科学与工程学报,2010,27(03):78.
　ZHANG Qin,GONG Jin-xin.Load-deformation Relations of Reinforced Concrete Columns Under Flexural-shear Failure[J].Journal of Architecture and Civil Engineering,2010,27(04):78.
[6]陈长坤,张冬.高温作用下钢交错桁架结构侧移简化模型[J].建筑科学与工程学报,2011,28(01):16.
　CHEN Chang-kun,ZHANG Dong.Simplified Model for Lateral Displacement of Steel Staggered-truss Structure Under High Temperature[J].Journal of Architecture and Civil Engineering,2011,28(04):16.
[7]魏巍巍,贡金鑫.钢筋混凝土柱荷载-变形计算的理论模型[J].建筑科学与工程学报,2012,29(01):38.
　WEI Wei-wei,GONG Jin-xin.Theoretical Models of Load-deformation Calculation for Reinforced Concrete Columns[J].Journal of Architecture and Civil Engineering,2012,29(04):38.
[8]董毓利.火灾时钢筋混凝土板的承载力计算[J].建筑科学与工程学报,2009,26(04):14.
　DONG Yu-li.Calculation of Bearing Capacity of RC Concrete Slabs in Fire[J].Journal of Architecture and Civil Engineering,2009,26(04):14.
[9]周长东,吕西林,金叶,等.火灾高温下玻璃纤维筋的力学性能研究[J].建筑科学与工程学报,2006,23(01):23.
　ZHOU Chang-dong,LU Xi-lin,JIN Ye.Research on Mechanical Behavior of GFRP Bars in High Temperature[J].Journal of Architecture and Civil Engineering,2006,23(04):23.
[10]余志武,唐国庆,丁发兴,等.三面受火钢筋混凝土梁温度场非线性分析[J].建筑科学与工程学报,2005,22(04):11.
　YU Zhi-wu,TANG Guo-qing,DING Fa-xing.Nonlinear analysis of temperature field of reinforced concrete beam with three surfaces exposing to fire[J].Journal of Architecture and Civil Engineering,2005,22(04):11.

备注/Memo

备注/Memo:
收稿日期:2005-07-23
基金项目:湖南省建设厅重点项目(2004A-16)
作者简介:宋晓勇(1979-),男,湖北武穴人,工学硕士研究生.E-mail:sxy224@163.com
更新日期/Last Update: 2006-12-20