Influence of post-earthquake fireproof coating damage on structural behaviour of steel-to-concrete post-installed joint

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Yu, Zhou-Jian^1 ; Xie, Qun^1 ; Ju, Hao-Xue^2

School of Civil Engineering and Architecture, University of Jinan, Jinan, Shandong

250022, China^1

College of Information Technology and Art Design, Shandong Institute of Commerce and Technology, Jinan, Shandong

250103, China^2

关键词: Different damages;    Fire-proof coatings;    High temperature;    High temperature performance;    Post-earthquake fires;    Structural behaviour;    Temperature changes;    Thermal-mechanical coupling;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/3/032020/pdf
DOI  :  10.1088/1755-1315/189/3/032020

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

In order to study the influence of fireproof coating damage after earthquake on the behaviour of post-installed joint at high temperature, the numerical analysis method is adopted to simulate the post-earthquake fire performance of post-installed joint under the action of high temperature. Two parameters are considered in this study, and the high temperature performance and thermal-mechanical coupling performance of model with damage thickness of 5 mm-40 mm and damage length of 100 mm-600 mm be analysed respectively. By observing the temperature change of damage at different positions and the performance of fireproof coating with different damage under the action of temperature field, the temperature of bonded-in rebar is obtained. Finally, the influence of damage length and thickness of damage to the performance of post-installed connection is explored.