既有预应力混凝土空心板梁破坏性试验研究  

Study on Destructive Experiment of Existing Prestressed Concrete Hollow Slab Beam

作　　者：张建国[1] 龚涌峰[1] 徐剑[2] 马志国[2] 

机构地区：[1]无锡市高速公路建设指挥部,江苏无锡214062 [2]江苏省交通科学研究院长大桥梁健康检测与诊断技术交通行业重点实验室,江苏南京211112

出　　处：《现代交通技术》2010年第3期41-44,共4页Modern Transportation Technology

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。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.

关 键 词：空心板梁 破坏性试验 有限元 承载能力 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]