吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (06): 1500-1503.doi: 10.7964/jdxbgxb201306011

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Reliability analysis of reinforced concrete member under fire load

JIANG Feng-guo, ZHAO Jing-lu   

  1. School of Civil Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027, China
  • Received:2013-02-12 Online:2013-11-01 Published:2013-11-01

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Abstract:

Under considerations of the capacity reduction factor and fire load factor, the limit state equations of the component reliability analysis were established. The reliability of the reinforced concrete member after fire was analyzed. The mechanical properties, e.g. yield strength, and sectional properties, e.g. cross-sectional area, etc, of reinforced bar are considered to be random variables. A number of parameters that affect the structural reliability, including the fire load, ratio of floor area to the total area of the fire compartment, dead load, and live load are also taken as random variables. The change of the load effect of the limit state equations after fire was considered. Then the reliability of reinforced concrete member was analyzed. Results show that fire load effect has high impact on the reliability of the structure after fire. So the fire load can not be ignored under some conditions.

Key words: civil engineering structure, fire load, load effect, structure reliability, temperature field

CLC Number: 

  • TU378.2

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