Research And Analyze Of PPFRC Continuous Girder Bridge Compute Method And Theory

FRC construct is consisted by Reinforced Concrete, Ferro Concrete and Steel Fiber Reinforced Concrete(SFRC)o If we apply it in continuous girder, we can get PPFRC(Partially Prestressed Fiber Reinforced Concrete) construct.According to the conceive of from experiment to theory, to actual project, and based on the analyses and research a great deal of FRC(Fiber Reinforced Concrete) girder and PPFRC girder experiment, this thesis strike up FRC-continuous girder bridge's compute mode—stress equity and equivalent admit tensile-stress method. Beside, this paper analyzes the FRC beam's positive-section bending strength,inclined-section shearing strength and PPC beam's resist-fatigue strength's formula.At the same time, we educe PPFRC's compute method and process, and particular intro it's assembling construction. Lastly, through comparing different span's PPFRC project example, we draw the conclusion that PPFRC's economy index and PPC degrees are under equality sample-supported girder and PPC continuous girder. Therefore build up a stability theory basis for PPFRC continuous girder bridge's actual project exercise.