Performance and working mechanism of tension-compression composite anchorage system for earthen heritage sites

doi:10.1186/s40494-019-0297-3

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Performance and working mechanism of tension-compression composite anchorage system for earthen heritage sites
	Wang, Donghua 1; Cui, Kai 1,2; Wu, Guopeng 1,2; Feng, Fei 1; Yu, Xiangpeng 1
刊名	HERITAGE SCIENCE
	2019-07-18
卷号	7
关键词	Earthen heritage sites Fully grouted tension-compression composite anchorage system (TC-anchorage system) Fully grouted tension anchorage system (T-anchorage system) Anchorage performance Working mechanism
ISSN号	2050-7445
DOI	10.1186/s40494-019-0297-3
英文摘要	Although the fully grouted tension anchorage system (T-anchorage system) has been widely used in the field of anchoring of earthen heritage sites, it has always suffered from the failure of the bolt-slurry interface debonding and the strong attenuation of the shear stress of the bolt-slurry interface along the embedment length. In this article, a new type of fully grouted tension-compression composite anchorage system (TC-anchorage system) is proposed, which is made up of a pressure bearing system with the same diameter of the anchor hole at the end of the tension bolt. The in situ anchorage, pull-out test and interfacial stress-strain monitoring were carried out for the T-anchorage systems and the TC-anchorage systems. This was based on the preliminary analysis and comparison of the structure and working mechanism of the two anchorage systems. The test results show that: the average ultimate load of the TC-anchorage system is about 40% higher than that of the T-anchorage system. TC-anchorage systems have the characteristics of small elastic deformation and large plastic deformation. The strain at the bolt-slurry interface varies progressively along the embedded length with the increase of load in a positive skewness-bimodal-negative skewness curve. The working mechanism of TC-anchorage systems includes three progressive stages: bolt-slurry interface debonding, conical slurry formation and slurry extrusion. The research conclusion provides a reference for the application of TC-anchorage systems in the protection and reinforcement of earthen heritage sites.
资助项目	Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China[2017IRT17-51]
WOS研究方向	Arts & Humanities - Other Topics ; Chemistry ; Materials Science ; Spectroscopy
语种	英语
出版者	SPRINGEROPEN
WOS记录号	WOS:000475981100001
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31719]
专题	土木工程学院兰州理工大学
通讯作者	Cui, Kai
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Western Ctr Disaster Mitigat Civil Engn, Minist Educ China, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ, Sch Civil Engn & Mech, Key Lab Mech Disaster & Environm Western China, Tianshui South Rd 222, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Donghua,Cui, Kai,Wu, Guopeng,et al. Performance and working mechanism of tension-compression composite anchorage system for earthen heritage sites[J]. HERITAGE SCIENCE,2019,7.
APA	Wang, Donghua,Cui, Kai,Wu, Guopeng,Feng, Fei,&Yu, Xiangpeng.(2019).Performance and working mechanism of tension-compression composite anchorage system for earthen heritage sites.HERITAGE SCIENCE,7.
MLA	Wang, Donghua,et al."Performance and working mechanism of tension-compression composite anchorage system for earthen heritage sites".HERITAGE SCIENCE 7(2019).