Experimental Study and Numerical Analysis on Fire Resistance of Inorganic-Bonded Bamboo Composite Beam
ZHANG Xin
GONG Yu
ZHAO Mingyun
YIN Hang
ZHAO Ernian
Abstract：To investigate the fire resistance performance of inorganic-banded bamboo composite(InorgBam)beams,standard fire tests were conducted on two full-scale InorgBam beams.The results show that the high-temperature resistance characteristics of the inorganic adhesive effectively delay the inward development of surface charring in the InorgBam beams.Under standard fire exposure,the surface charring of the InorgBam beams is uniform.At load ratios of 0.3 and 0.4,the average charring rates of the InorgBam beams are approximately 0.35 and 0.38 mm/min,respectively,with fire resistance limits exceeding 2.0 hours in both cases.The established thermo-mechanical coupled finite element model effectively simulates the fire resistance performance of the InorgBam beams.The fire resistance limit of the InorgBam beams exhibits a negative power-exponential relationship with the load ratio,a linear negative correlation with the span-to-depth ratio,and a linear positive correlation with the section height.
Keywords：inorganic-bonded bamboo composite beamfire testtemperature fieldcharringfire resistance limitnumerical simulation
Publication Date：2026-02-28
Online Publishing Date：2026-04-07(First online date of this platform, not the publication date of the document)
Pages：9( 251-259 )