【摘要】 结构位移之间的微分关系和结构荷载及内力之间微分关系的相似性为结构位移的计算提供了一个有效的新方法:曲率荷载法.将结构各杆件的曲率视为作用在结构上的分布荷载,将支座、杆件结点和曲率改变处作为杆件单元的分段点,根据杆件两端的支承情况求出杆端力,据此求出结构的剪力曲线和弯矩曲线,相应地得到了结构的转角位移曲线和挠度位移曲线.介绍了曲率荷载法的求解思路,给出了杆件常见曲率荷载作用下的转角和挠度表达式.算例分析表明,该法计算简单,结果正确,是对结构位移计算的一种有益探索与尝试.更多还原

【Abstract】 The similarity that the differential relation between structure displacements and the differential relation between structure loads and its internal forces has provided an effective new method to calculate structural displacements,namely the curvature loading method.Every member curvature was looked upon as the distribution load acting on a structure,and a support joint,a bar nod and a curvature change position were all regarded as a bar element piecewise point,then the forces of end point were obtained based on the supporting conditions at two opposite ends.Hereby,the shearing curves and the bending moment curves were obtained.The angle displacement curves and the deflection displacement curves were attained correspondingly.Hence the resolving thoughts of the curvature loading method were proposed and the expressions for the angle displacement and deflection displacement were also given under a common curvature load.The example showed that,the method introduced above was correct,and easy to calculate,and the work in this paper is a kind of beneficial attempt and exploration in structural displacement calculation.更多还原