Model Test Study of Assembled Skew Box Girder Constructed by Stages

Backgrounded by a skew box girder bridge in Guangdong Province,the method for construction of assembled skew box girder structure by stages is put forward and the model test study is made for the box girders constructed by the method and by the integrally casting method.Through testing of the girders under different loading cases and analysis of data obtained from the test study by mathematical statistics,the differences of the structural behavior of the girders constructed by both the methods are quantitatively compared and some conclusions that can be put in use in construction have been generalized.In addition,the relations between the test loads and calculated loads of the girders of actual bridge are analyzed.The results of the study in the paper are helpful to the popularization and application of the assembled box girders constructed by stages in bridge design.