Bending behaviour experiment of a prestressed concrete beam with metal bellows

doi:10.1080/13287982.2020.1796075

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	Bending behaviour experiment of a prestressed concrete beam with metal bellows
	Xiang, Qingming 1; Cheng, Xuansheng 2,3; Su, Jiaxuan 4; Ma, Liang 2
刊名	Australian Journal of Structural Engineering
	2020-10-01
卷号	21 期号:4 页码:279-293
关键词	Bearing capacity Bellows Concrete construction Grouting Mortar Organic pollutants Polychlorinated biphenyls Prestressed beams and girders Prestressed concrete Rebar Bending behaviour Bending stiffness Comparative analysis Crack distribution Deflection curves Load-bearing capacity Prestressed beam Prestressed concrete beams
ISSN号	13287982
DOI	10.1080/13287982.2020.1796075
英文摘要	In this paper, grouting compactness and load forms are taken as control conditions, and the bending behaviour of 8 PCBs (prestressed concrete beams) with metal bellows of different grouting compactness is experimentally examined. The strain and deflection of the prestressed beams are measured, and the failure process and failure modes are investigated under the action of different load forms. The rebar strain, bending bearing capacity and bending stiffness of the PCBs are explored, and a comparative analysis is conducted. The results show that the average strain is linearly distributed along the beam height for all PCBs. The load versus span deflection curve and rebar strain curve of the specimens show that the grouting compactness has little effect on the early stage of beam cracking, but the effect becomes increasingly obvious after the beam cracks. Under different load forms, when the grouting compactness of the PCB increases, the crack distribution becomes more concentrated, the spacing narrows, and the ductility decreases. The load-bearing capacity of the PCB with 100% grouting compactness can be improved by more than 30% compared with that of the prestressed beam with 0% grouting compactness of the metal bellows. © 2020 Engineers Australia.
WOS研究方向	Engineering
语种	英语
出版者	Taylor and Francis Ltd.
WOS记录号	WOS:000619166100001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151116]
专题	土木工程学院经济管理学院
作者单位	1.Wenzhou Traffic Quality Supervision Bureau, WenZhou, China; 2.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou, China; 3.Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou, China; 4.Wenzhou Traffic Engineering Test and Inspection Limited Company, WenZhou, China
推荐引用方式 GB/T 7714	Xiang, Qingming,Cheng, Xuansheng,Su, Jiaxuan,et al. Bending behaviour experiment of a prestressed concrete beam with metal bellows[J]. Australian Journal of Structural Engineering,2020,21(4):279-293.
APA	Xiang, Qingming,Cheng, Xuansheng,Su, Jiaxuan,&Ma, Liang.(2020).Bending behaviour experiment of a prestressed concrete beam with metal bellows.Australian Journal of Structural Engineering,21(4),279-293.
MLA	Xiang, Qingming,et al."Bending behaviour experiment of a prestressed concrete beam with metal bellows".Australian Journal of Structural Engineering 21.4(2020):279-293.