D esign of ContinuousR igid- fram e of X iantangdongjiangR iver Bri dge in Dongyuan Abstr act The m ain span of present bridge is a continuous rig id- fram e of 30 and 50 and 30 meter. There s a m ain pier w ith th in w al.l The level launching force is exerted on m id span as the latter folds in order to regulate in ternal forceof the m ain p ier. Temporal pier is set up for safty of the m ain br