Research And Analyse On The Model Test Of The Concrete Bridge Deck Slab Of The Cable-Stayed Bridge

It is complicated for its supporting system and effect internanl force of the bridge deck slab that PC cable-stayed bridge use double-triangle side box girder. Based on the current design methods of the bridge deck slab of box girder, this paper gives some advice for the load distribution width of the with separate double-triangle side box girder deck slab via comparison among the bridge deck slab design methods, theories and formulas in the design codes of some countries.This paper study its internal force with separate double-triangle side box by reduce scale model test, analysis girder deck effective distribution width; Then compare it to the Criterion of some country. The conclusion is that the bridge deck slab of the side boxes are approach the U.K and Germany Criterion; while the bridge deck slab of between two sides boxes are approach U.S.A criterion and it is safely if use China Criterion. Analysis its effective distribution width and its impressible through the thickness of girder deck and transversal board by create entity finite model. Analyses the rule of strain of the deck by compare finite analysis to model test and get effective distribution width of this kind girder deck,and wish it can be used in practical engineering.