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一、引言重力坝在承受各种荷载以后,坝体必将发生变位。变位的大小常为设计人员、施工人员以及管理人员所共同关心。重力坝是一空间结构。由于坝轴方向刚度很大,因此,沿坝轴方向的线位移以及绕水流方向的角位移很小,可以不计。这样,重力坝坝体截面的平均变位主要有竖向变位、绕竖向轴的扭转变位、水平变位和弯曲变位,其中又以水平变位及弯曲变位尤为重要。
I. INTRODUCTION After the gravity dam is under various loads, the dam body will be displaced. The size of the displacement often for designers, construction workers and managers of common concern. Gravity dam is a space structure. Due to the high stiffness in the direction of the dam axis, the linear displacement along the dam axis direction and the angular displacement in the direction of the water flow are negligible. In this way, the average displacement of gravity dam section is mainly vertical displacement, around the vertical axis of torsional displacement, horizontal displacement and bending displacement, of which horizontal displacement and bending displacement is particularly important.