Numerical Study of FRP Reinforced Concrete Slabs at Elevated Temperature

Polymers

Masoud Adelzadeh²  Hamzeh Hajiloo¹ 

[1]Civil Engineering Department, Queen’s University, Kingston, K7L 3N6, Canada

关键词: FRP;    reinforcement;    concrete slabs;    fire resistance;    numerical model;    multilayer reinforcement;   

DOI  :  10.3390/polym6020408

来源: mdpi

【 摘 要 】

One-way glass fibre reinforced polymer (GFRP) reinforced concrete slabs at elevated temperatures are investigated through numerical modeling. Serviceability and strength requirements of ACI-440.1R are considered for the design of the slabs. Diagrams to determine fire endurance of slabs by employing “strength domain” failure criterion are presented. Comparisons between the existing “temperature domain” method with the more representative “strength domain” method show that the “temperature domain” method is conservative. Additionally, a method to increase the fire endurance of slabs by placing FRP reinforcement in two layers is investigated numerically. The amount of fire endurance gained by placing FRP in two layers increases as the thickness of slab increases.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.