Flexural performance test of a prestressed concrete beam with plastic bellows

doi:10.12989/sem.2021.79.2.223

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Flexural performance test of a prestressed concrete beam with plastic bellows
	Cheng, Xuansheng 1; Hong, Junliang 1; Ma, Liang 2; Li, Guoliang 2
刊名	STRUCTURAL ENGINEERING AND MECHANICS
	2021-07-25
卷号	79 期号:2 页码:223-235
关键词	flexural performance grouting compactness plastic bellows prestressed beams test
ISSN号	1225-4568
DOI	10.12989/sem.2021.79.2.223
英文摘要	The flexural performance of 8 types of prestressed concrete beams with plastic bellows under different grouting compactness is examined in this paper. By applying concentrated load and symmetrical load to 8 types of prestressed concrete test beams with plastic bellows, the flexural performance test of each test beam is carried out, and the mechanical characteristics and failure morphology of each test beam under different grouting compactness are discussed. The influence of duct grouting compactness on the strain of steel bars and concrete, mid-span deflection and stiffness of prestressed concrete beam are analyzed. The results show that the cracking load and ultimate load of the test beam increases constantly with the increase of the duct grouting compactness, and the flexural bearing capacity of prestressed concrete beams has also been significantly improved. After the concrete is cracked, the mid-span deflection of the prestressed concrete beam gradually decreases with the increase of the duct grouting compactness under the same load form and load grade. At the same load grade, the mid-span deflection change of prestressed concrete beams under concentrated load is much larger than that under symmetric load. The ductility coefficient of prestressed concrete beams with plastic bellows decreases as the grouting compactness increases. In engineering practice, the quality of duct grouting compactness about the prestressed concrete beam should be strictly controlled and improved.
WOS研究方向	Engineering
语种	英语
出版者	TECHNO-PRESS
WOS记录号	WOS:000678084600007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148586]
专题	土木工程学院经济管理学院
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Minist Educ, Western Engn Res Ctr Disaster Mitigat Civil Engn, 287 Langongping Rd, Lanzhou 730050;, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Xuansheng,Hong, Junliang,Ma, Liang,et al. Flexural performance test of a prestressed concrete beam with plastic bellows[J]. STRUCTURAL ENGINEERING AND MECHANICS,2021,79(2):223-235.
APA	Cheng, Xuansheng,Hong, Junliang,Ma, Liang,&Li, Guoliang.(2021).Flexural performance test of a prestressed concrete beam with plastic bellows.STRUCTURAL ENGINEERING AND MECHANICS,79(2),223-235.
MLA	Cheng, Xuansheng,et al."Flexural performance test of a prestressed concrete beam with plastic bellows".STRUCTURAL ENGINEERING AND MECHANICS 79.2(2021):223-235.