福州大学学报（自然科学版）2025，Vol.53Issue(4)：439-446,8.DOI:10.7631/issn.1000-2243.24222
非对称配钢SRC矩形柱偏压承载力计算方法
Calculation method for eccentric bearing capacity of SRC rectangular column with unsymmetrical steel section
摘要
Abstract
To propose the calculation method for eccentric bearing capacity,the axial piezoelectric sensor was used to monitor the internal axial stress of the confined concrete.The influence of unsym-metrical steel section on the stress distribution of the concrete and the uneven stress distribution characteristics of unsymmetrical steel contained concrete were analyzed.The concrete stress in the steel reinforced concrete(SRC)rectangular column with unsymmetrical steel section has significant distribu-tion of overall unsymmetry and local unevenness during the compression process,and the degree of unevenness increases with the unsymmetry of the steel section.The ultimate compressive strain of concrete better reflects the uneven constraining effect of unsymmetrical steel section on concrete,which suggests taking 0.003 72 in the calculation of bearing capacity.The calculation method for eccentric compressive bearing capacity of SRC columns simplifies the unsymmetrical steel cross-section by approximating the top and bottom areas of the short web to the center web and the long flange,respectively.The bearing capacity obtained by the calculation method is in good agreement with the experimental and simulation.关键词
非对称配钢/SRC矩形柱/偏心受压/正截面承载力/计算方法Key words
unsymmetrical steel section/SRC rectangular column/eccentric compression/normal section bearing capacity/calculation method分类
建筑与水利引用本文复制引用
吴琛,肖晓菲,黄智彬,项洪,曾志攀..非对称配钢SRC矩形柱偏压承载力计算方法[J].福州大学学报（自然科学版）,2025,53(4):439-446,8.基金项目
国家自然科学基金资助项目(52378494) （52378494）
福建省技术创新重点攻关及产业化项目(2024XQ015) （2024XQ015）
福建省科技厅引导性基金资助项目(2021H0032) （2021H0032）
