SIMULATION AND CALCULATION METHOD OF LONG-TERM BEHAVIOR OF STEEL-CONCRETE COMPOSITE BEAMS

WANG Xiaobi; SONG Ruinian; ZHAN Yulin; ZHAO Renda

doi:10.13204/j.gyjz202004023

Volume 50 Issue 4

Jun. 2020

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2020 > 50(4): 132-137

WANG Xiaobi, SONG Ruinian, ZHAN Yulin, ZHAO Renda. SIMULATION AND CALCULATION METHOD OF LONG-TERM BEHAVIOR OF STEEL-CONCRETE COMPOSITE BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(4): 132-137. doi: 10.13204/j.gyjz202004023

Citation:

WANG Xiaobi, SONG Ruinian, ZHAN Yulin, ZHAO Renda. SIMULATION AND CALCULATION METHOD OF LONG-TERM BEHAVIOR OF STEEL-CONCRETE COMPOSITE BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(4): 132-137. doi: 10.13204/j.gyjz202004023

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SIMULATION AND CALCULATION METHOD OF LONG-TERM BEHAVIOR OF STEEL-CONCRETE COMPOSITE BEAMS

doi: 10.13204/j.gyjz202004023

1. Jincheng College, Sichuan University, Chengdu 611731, China;
2. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China;
3. Sichuan Highway Planning, Survey, Design and Research Institute Ltd., Chengdu 610031, China

Received Date: 2019-11-26

Abstract

Abstract

In order to evaluate the influences of time-dependent properties of concrete to composite beams, a finite element numerical analysis was carried out to simulate the long-term performance of steel-concrete composite beams. The long-term properties of concrete was simulated by 3 methods:defining the creep behavior of concrete; effective modulus method; adjusting the shear resistance of interface. Based on the results of test and simulation, a simplified calculation method for the long-term deflection of composite beam was introduced. The results showed that the integral long-term performance of composite beam could be well simulated by all the methods. The method of simply adjusting the shear resistance of interface could not be used for analyzing the distribution of local stress. With comparison to several long-term composite beam experiments, it indicated that the calculating results could agree well with the experimental results.
- steel-concrete composite beam,
- finite element analysis,
- long-term deflection,
- simplified calculation method

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References(18)

References

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