|Table of Contents|

Research on ultimate load capacity of cross section of reinforced concrete columns exposing to fire(PDF)

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

Issue:
2005年04期
Page:
61-64
Research Field:
Publishing date:
2006-12-20

Info

Title:
Research on ultimate load capacity of cross section of reinforced concrete columns exposing to fire
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
Keywords:
reinforced concrete column;  fire;  ultimate load capacity;  section size
PACS:
TU375.3
DOI:
-
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.

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.

Memo

Memo:
-
Last Update: 2006-12-20