拱坝内力分析的曲杆单元法

从拱坝结构实际应用出发，对拱坝内力分析提出的一种新的、实用的数值方法——曲杆单元法。该方法是通过将拱坝离散成相互垂直或斜交的曲杆梁系组成的空间结构体系，通过分析曲杆空间结构体系的内力达到拱坝内力分析的目的。最后以国内一座双曲拱坝工程为实例，该法的计算结果与工程实测结果吻合较好。

The Method of Curved Lever Unit for Arch Dam Internal Force Analysis

The method of curved lever unit is a new and practicable numerical method based on the utility of arch dam structure in practical project and on internal force analysis of Arch dam structure as this paper extracts.After dividing the arch dam into orthogonal or oblique crossing girder system,a space rigid frame structure system is made up.This method analyzes the internal force of the arch dam structures through analysis of the internal force of the curved level spatial structure system.In the last part of this paper,a domestic hyperbolic arch dam is taken as an example to calculate the internal force,and the calculation consequence of this method accords with the actual value measured.