Research On Disease Prevention And Control Technology Of Simple-supported System With Continuous Deck

Though the continuous deck of simple-supported system is widely applied inbridge engineering in our country, which are prone to damage in use due to lack ofsufficient theoretical basis for the design of continuous decks. This arcticle hascalculated and analysed the continuous decks of simple-supported system in theanalytical and numerical simulated way respectively, and finally researched on thedisease prevention and control technology.1. Concluded and Analysed the main factors which caused damage incontinuous deck of simple-supported girder bridge on the basis of survey andsummary of common disease of this kind of construction.2. Applying rotational deformation, vertical deformation and horizontaldeformation, analysed the continuous decks effected in the analytical way to find theprimary factors3. Established the finite element model of simple-supported system withcontinuous decks; simulated diverse loading conditions, and researched the specificstress state for the continuous deck.4. Study the stress of this kind of construction by respectively using fourdisease prevention and control methods including increasing the thickness of deckpavement, Adopting Engineered Cementitious Composite instead of ordinaryconcrete, carbon fiber fabric and steel plate sticked on the top of continuous deck.5. Compared and analysed the maximum tensile stress and the maximum crackwidth of each method; determined two effective disease prevention and controlmeasures of simple-supported system with continuous decks.