轻量化复合材料桁架桥承载性能试验研究
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摘要
轻量化复合材料桁架桥是以碳/玻混杂纤维增强复合材料(FRP)与铝合金为原材料的,为武警部队研发、通行重型荷载的应急桥装备。为了验证桥梁的承载性能,对30 m跨轻量化复合材料桁架桥进行了静载与动载试验。结果表明:轻量化后的应急桥在静动载作用下,结构处于线弹性状态,杆件应力与桥梁变形均小于设计允许值,桥梁性能良好,达到了工程应用的设计要求。
The lightweight composite material(FRP) truss bridge is an emergency bridge equipment developed for the armed police force and used for heavy load.In order to verify the bearing capacity of the bridge,static and dynamic load tests were carried out on the 30 m span lightweight composite material truss bridge.The results show that the lightweight emergency bridge under static and dynamic loads is in a linear elastic state.The stress and deformation of the members are less than the allowable value of the design.The performance of the bridge is good and meets the design requirements of the engineering application.
The lightweight composite material(FRP) truss bridge is an emergency bridge equipment developed for the armed police force and used for heavy load.In order to verify the bearing capacity of the bridge,static and dynamic load tests were carried out on the 30 m span lightweight composite material truss bridge.The results show that the lightweight emergency bridge under static and dynamic loads is in a linear elastic state.The stress and deformation of the members are less than the allowable value of the design.The performance of the bridge is good and meets the design requirements of the engineering application.
引文
[1]邵劲松,刘伟庆,蒋桐.民用工业中复合材料桁架的应用和发展[J].玻璃钢/复合材料,2006(5):35-39.
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[3]Kostopoulos V,Markopoulos Y P,Vlachos DE,et al.Design and construction of a vehicular bridge made of glass polyester pultruded box beams[J].Plastics Rubber&Composites,2013,34(4):201-209.
[4]赵启林,李飞,徐康.新型复合材料桁架结构静载实验研究[J].工业建筑,2011(s1):84-87.
[5]赵启林,高建岗,陶杰,等.复合材料桁架桥的若干关键问题探讨[J].南京工业大学学报:自然科学版,2017,39(5):146-152.
[6]中华人民共和国交通运输部.公路桥梁承载能力检测评定规程(JTG/T J21-2011)[S].北京:人民交通出版社,2011:72-91.
[2]Sasaki I,Nishizaki I.Load-bearing properties of an FRP bridge after nine years of exposure[M]//Advances in FRP Composites in Civil Engineering,Berlin:Springer,2011:474-478.
[3]Kostopoulos V,Markopoulos Y P,Vlachos DE,et al.Design and construction of a vehicular bridge made of glass polyester pultruded box beams[J].Plastics Rubber&Composites,2013,34(4):201-209.
[4]赵启林,李飞,徐康.新型复合材料桁架结构静载实验研究[J].工业建筑,2011(s1):84-87.
[5]赵启林,高建岗,陶杰,等.复合材料桁架桥的若干关键问题探讨[J].南京工业大学学报:自然科学版,2017,39(5):146-152.
[6]中华人民共和国交通运输部.公路桥梁承载能力检测评定规程(JTG/T J21-2011)[S].北京:人民交通出版社,2011:72-91.