【摘要】 依托无锡机场路既有20m预应力混凝土空心板梁的再利用工程,通过破坏性试验,并结合非线性有限元计算,获取了试验板梁的变形、应力和裂缝的发展规律,研究了既有预应力混凝土空心板梁的承载能力、受力特性、破坏机理,为其再利用提供决策依据。更多还原

【Abstract】 Based on reusing project of 20 m existing prestressed concrete hollow slab beams on Wuxi airport road,the developing regularity of crack,deformation and stress was got through destructive test and nonlinear finite element computation.The mechanical characteristic,damage mechanism and bearing capacity of the beams were studied.This research provides decision basis for reusing.更多还原