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ISSN:
2319-6009 (Online)
Abbreviated title:
Int. J Struct. Civ. Eng. Res.
Editor-in-Chief:
Prof. Eric Strauss
Associate Editor:
Assoc. Prof. Wenxing Zhou
Executive Editor:
Ms. Cherry L. Chen
DOI:
10.18178/ijscer
Abstracting/Indexing:
Google Scholar, Cross-ref, CNKI,
etc.
E-mail questions to:
IJSCER Editorial Office
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Editor-in-Chief
Prof. Eric Strauss
Michigan State University, USA
I am very excited to serve as the Editor-in-Chief of the International Journal of Structural and Civil Engineering Research
(IJSCER)
and hope that the publication can enrich the readers’ experience...
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2024-01-04
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Volume 7, No. 3, August 2018
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Internal Force Analysis of Reinforced Concrete Structure with Bearing Column Girder Transfer Floor in Fire
Kong Wei-yi, Fu Chuan-guo, and Song Ya-min
College of Civil Engineering, Southeast University, Nanjing 210096, China
Abstract
—A model of 4-story reinforced concrete structure with a large transfer girder in the first floor is established. Using the nonlinear FEM software ABAQUS to analyze the internal forces of the model which is exposed to fire and coupling with vertical loads. The internal forces of the transfer structure model in five kinds of fire conditions are analyzed, and the relation curves between the internal forces and heating time of member sections are plotted. The numerical results show that on the basis of the internal forces produced by the vertical load in room temperature, with the heating time increasing, the internal forces of the reinforced concrete transfer structure redistribute to varying degrees and that of some sections just change the magnitude, others also change the direction. The internal force redistribution mainly occurs within 90min of the initial fire, and the variation trend and range of internal forces caused by different fire conditions are also different. In the whole process of the fire, the internal forces of the transfer structure are constantly changing because of the effect of additional internal forces, especially the internal force superposition in some member sections may exceed expectations which are designed for room temperature, so it could impact the section safety. Therefore, the potential fire impact should be considered in designing the key structures like transfer structures.
Index Terms
—Reinforced concrete, Transfer structure, Fire, Internal force analysis
Cite: Kong Wei-yi, Fu Chuan-guo, and Song Ya-min, "Internal Force Analysis of Reinforced Concrete Structure with Bearing Column Girder Transfer Floor in Fire," International Journal of Structural and Civil Engineering Research, Vol. 7, No. 3, pp. 183-188, August 2018. doi: 10.18178/ijscer.7.3.183-188
ICSCER 2018 K0001
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