Premium
Post‐fire behavior of CFRP retrofitted thin‐walled steel tanks
Author(s) -
Maali Mahyar,
Kiliç Mahmut
Publication year - 2020
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/fam.2905
Subject(s) - buckling , materials science , structural engineering , composite material , carbon fiber reinforced polymer , shell (structure) , polymer , composite number , engineering
Summary Thin‐walled shell structures are characterized by a lightweight structural form with high strength. This structure has many applications in various engineering fields and is considered to be a basic tool in the modern industry. This study investigates the effect of CFRP on tanks after post‐fire in order to examine the buckling and post‐buckling of the cylindrical tanks. Herein, post‐fire was introduced at different temperatures (150°C‐600°C). Ten laboratory specimens in two groups with verified temperatures, under external pressure, are examined. The models were designed to demonstrate how repairing steel tanks, which are damaged by fire, by using carbon‐fiber‐reinforced polymer can recover lost capacity. The results of testing under different theories and codes were compared. This study shows that the initial buckling load of the temperature group increased by 30.82% to 57.09% compared to the temperature without‐CFRP group. The overall buckling load of the temperature group increased by 37.01% to 67.74% compared to the temperature without‐CFRP group. The collapse load of the temperature group increased by 27.04% to 52.64% compared to the temperature without‐CFRP group. And using carbon‐fiber‐reinforced polymer on models, which are damaged by fire, can be an improvement behavior for the buckling and post‐buckling specimen tests.