基于曲线拟合的平面弧形梁内力简化计算  

Simplified Endogen Force Computation of Planar and Curved Beam Based on Curve Fitting

作　　者：常光明[1] 韩佳[2] 俞宗卫[2] 

机构地区：[1]皖西学院城市建设与环境系,安徽六安237012 [2]长安大学建筑工程学院,陕西西安710061

出　　处：《皖西学院学报》2006年第5期89-92,共4页Journal of West Anhui University

摘　　要：为解决在计算弧形梁内力时存在的单元数量与计算精度之间的矛盾,通过数值拟合的方法,建立了均布荷载作用下平面弧形梁内力与等跨直梁内力之间的数学模型,通过该模型能够较容易地由直梁内力求出弧形梁的内力。计算简单,运算效率高,计算误差满足工程计算要求,计算结果偏于安全,具有一定实际应用价值。In order to solve the contradiction among unit quantity and calculation precision existing while calculating the endogen force of curved beame,some limitations of current formula are discussed after investigating on the features of curved beam. The approximate expression of curved beam compared with straight beam that has the same fly-past is derived by numeric analysis method. A simplified computation method is proposed. Examples show that the new method is more suitable than the original method.

关 键 词：弧形梁 内力 简化计算 曲线拟合 

分 类 号：TU12[建筑科学—建筑理论]