Analysis of Fire Endurance of Reinforced Concrete Columns with Sideway

By using the computer program SAFIR for analysis of reinforced concrete structures in fire,a comparison between the fire endurance of frame columns and that of independent column has been conducted,and the numerical model of the column with sideway is verified.Then,the influences of lateral-displace...

Full description

Saved in:
Bibliographic Details
Published inFangzai Jianzai Gongcheng Xuebao no. 5; p. 848
Main Authors Wu, Bo, Chen, Haiju
Format Journal Article
LanguageChinese
Published Nanjing Zhongguo Zaihai Fangyu Xiehui 01.01.2017
Subjects
Axial loads
Columns (structural)
Concrete structures
Durability
Endurance
Fatigue tests
Fire resistance
Lateral displacement
Mathematical models
Reduction
Regression analysis
Reinforced concrete
Online AccessGet full text

Cover

More Information
Summary:By using the computer program SAFIR for analysis of reinforced concrete structures in fire,a comparison between the fire endurance of frame columns and that of independent column has been conducted,and the numerical model of the column with sideway is verified.Then,the influences of lateral-displacement factor,sectional dimensions of column,axial load ratio,and reinforcement ratio on the fire resistance reduction coefficient(FRRC)of square column with sideway have been numerically studied,and a regressive formula is proposed to determine the FRRC.It is found that:(a)when the column’s sideway is large,the fire endurance of frame column is remarkable lower than that of independent column;(b)with the increasing of the lateral-displacement factor,the FRRC decreases gradually,especially when the sectional dimensions of the column is bigger,the effect of the lateral-displacement factor is more significant;(c)the FRRC reduces gradually with the increasing of the sectional dimensions of the column,and the greater the
ISSN:1672-2132