Degradation assessment method for technical state of bridge based on initial state of finished bridge
A technique of technical state and initial state, which is applied in the field of bridge technical state degradation assessment based on the initial state of the bridge, can solve the problems of insufficient accuracy and credibility of the assessment work, large deviation between the estimation of the degradation model and the actual value, etc. Achieve good technical status and prolong service life
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[0044] Long-term follow-up of the technical status of a reinforced concrete hollow slab bridge, the bridge is 60m long, the superstructure is a 3×20m concrete hollow slab, and 11 beams are arranged horizontally, the beam height is 0.90m, and the width is 1.00m; the abutment is Gravity stone masonry abutments, gravity stone masonry piers, pier and abutment foundations are all enlarged foundations; the bridge deck pavement layer is cement concrete surface layer, and the guardrail adopts the anti-collision wall type; the bridge was completed in 1994 and 2016 The age of the bridge is 23 years. According to the data when the bridge was built, it was determined that the initial technical state score Dc of the bridge was 95 points. During the 23 years, the bridge was inspected and evaluated 4 times. 1994 was the initial bridge construction time. In 2003, 2007, 2011 and 2016, the technical status scoring results D(1)=Dc=95, D(10)=85, D(14)=81, D(18)=76, D(23) =71, the evaluation time...
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