东南大学学报（自然科学版）2026，Vol.56Issue(6)：845-855,11.DOI:10.3969/j.issn.1001-0505.2026.06.006
参数火灾下木柱损伤量化评估研究
Study on quantitative damage assessment of timber columns under parametric fire
摘要
Abstract
To accurately assess the damage extent of timber structures under real fire conditions,this paper proposes an energy-based time equivalent method(referred to as the"energy equivalence method").The study conducted fire exposure tests on six glued laminated timber column specimens,subjecting them to both EN 1991-1-2 parameter fires and their equivalent standard fires to validate the applicability and accuracy of this method.Results indicate that for timber columns with identical structural composition,when absorbing equiva-lent heat under parametric and standard fire conditions,significant equivalence is observed in char morphol-ogy,residual cross-sectional shape,charring depth,temperature distribution of the pyrolysis layer,and re-sidual load-bearing capacity post-fire.Specific data indicate that the relative errors in charring depth,ultimate load-bearing capacity,and ultimate displacement are controlled within 10%,5%,and 10%,respectively.This confirms that the energy equivalence method can effectively evaluate the damage extent of timber struc-tural members under parameterized fires,providing theoretical basis and practical support for advancing performance-based fire safety design in timber structures.关键词
能量等效法/木构件/等效时间/参数火灾Key words
energy equivalence method/timber components/equivalent time/parameter fire分类
建筑与水利引用本文复制引用
张永旺,万晓雅,钱宗赟,陈世豪,张晓非,季克乾,王璐..参数火灾下木柱损伤量化评估研究[J].东南大学学报（自然科学版）,2026,56(6):845-855,11.基金项目
国家自然科学基金资助项目(52378518,52408539,52505252). （52378518,52408539,52505252）
