摘要
Abstract
For large volume concrete structures,the calculated length coefficient is greatly affected by temperature effect and concrete shrinkage,so the influence of these two factors cannot be ignored when analyzing the calculated length coefficient.Based on this,this paper first introduces an independent column buckling equation considering temperature lateral deformation ⊿ and concrete shrinkage deformationεy0,then deduces the buckling equation of a single step column under the influence of both,and finally systematically analyzes the influence on the calculation of the length coefficient.The results show that when both temperature effect and concrete shrinkage are considered,the calculated length coefficient μ2 of single step column will increase,and the larger the critical force parameter η1 and linear stiffness ratio K1 or the larger the sum of temperature lateral deformation and concrete shrinkage deformation⊿+εy0h,the more obvious the difference of calculated length coefficient.关键词
温度效应/混凝土收缩/计算长度系数/屈曲分析/单阶柱Key words
Temperature effect/Concrete shrinkage/Effective length ratio/Buckling analysis/Single step column分类
建筑与水利
