• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 26 Issue 4
Aug.  2013
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Article Contents
FU Chuanguo, SHANG Shengqiang, WANG Yuzhuo, LI Shibo. Bending Bearing Capacity Calculation of Prestressed Steel Reinforced Concrete Beam under Fire[J]. Journal of Southwest Jiaotong University, 2013, 26(4): 625-631,658. doi: 10.3969/j.issn.0258-2724.2013.04.006
Citation: FU Chuanguo, SHANG Shengqiang, WANG Yuzhuo, LI Shibo. Bending Bearing Capacity Calculation of Prestressed Steel Reinforced Concrete Beam under Fire[J]. Journal of Southwest Jiaotong University, 2013, 26(4): 625-631,658. doi: 10.3969/j.issn.0258-2724.2013.04.006

Bending Bearing Capacity Calculation of Prestressed Steel Reinforced Concrete Beam under Fire

doi: 10.3969/j.issn.0258-2724.2013.04.006
  • Received Date: 29 Oct 2012
  • Publish Date: 25 Aug 2013
  • Based on the bearing performance of prestressed steel reinforced concrete beam at normal temperature,the simplified calculation formula for the bending bearing capacity of the prestressed steel reinforced concrete beam under high temperatures is established by means of the cross-sectional finite element method. The relationship between the beam bending capacity and the standard heating time during the whole process is obtained. The relationship curve reveals a degradation rule that the bending bearing capacity of the cross section is decreased significantly with the increase of heating time. The comparison between the calculated bending capacity and the measured one shows a good agreement with a relative error of 9.3%.

     

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