Fire Survivability of Externally Bonded FRP Strengthening Systems
Source abstract
Abstract
The use of externally-bonded fiber-reinforced polymers (FRPs) to strengthen reinforced concrete (RC) structures is now widely recognized. However, a concern that continues to discourage the use of FRPs in many applications is their susceptibility to high temperature and fire. Although recent studies have shown that the fire endurance of appropriately designed and insulated FRP strengthened RC members is satisfactory, the specific performance of FRP systems at, and after exposure to, high temperature remains largely unknown. The results of tests on the residual properties after high-temperature exposure of various available FRP strengthening systems for concrete are reported; these include: tension coupon tests, single-lap FRP-to-FRP bond tests, direct tension FRP-to-concrete bond tests, and pull-apart FRP-to-concrete shear bond tests after exposure to temperatures up to 400°C . The data show that the allowable exposure temperatures for residual performance of externally bonded FRP systems lie between the glass transition temperature (Tg) and the thermal decomposition temperature of the resin systems used. The potential consequences for fire-safe design of FRP strengthened RC members are discussed. Material properties during a fire event are not specifically addressed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Fire effects on concrete materials · Structural Response to Dynamic Loads
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Project Engineer, Halsall Associates Limited, 210 Gladstone Ave., Ste. 4001, Ottawa ON, Canada K2P 0Y6.
Reader and Arup/RAEng Senior Research Fellow in Structures in Fire, Institute for Infrastructure & Environment, William Rankine Building, The School of Engineering and Electronics, The University of Edinburgh, The King's Buildings, Mayfield Rd., Edinburgh EH9 3JL, U.K.
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