Push-Out Tests on Large Diameter and High Strength Welded Stud Connectors
Joint Authors
Yang, Fei
Liu, Yuqing
Li, Yongjun
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-17
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
In recent years, steel-concrete composite cable-pylon anchorages are increasingly employed in the construction of long-span cable-stayed bridges, especially in China.
Welded stud connectors, typically 19 mm and 22 mm in diameter, are usually densely arranged at the interface between the steel anchorage box and the wall of the concrete pylon to transfer the huge cable force into the concrete pylon.
However, dense welded stud arrangements at the interface have some disadvantages, such as the shear strength reduction of stud connectors and the difficulties in arranging reinforcements and pouring pylon concrete.
Larger diameter and higher strength welded studs may be excellent alternatives since they both could increase the shear strength of a single stud connector and thus reduce the required number of welded studs.
In this paper, push-out tests were implemented on four groups of welded stud connector specimens, including conventional 22 mm welded studs, 22 mm welded studs with much higher strength, 25 mm welded studs, and 30 mm welded studs.
The shear strength, shear stiffness, and ductility of these welded stud connectors were investigated and compared with the predictions by the equations recommended in existing design codes.
The results show that the shear strength of welded stud connectors could be conservatively determined by Eurocode 4, while AASHTO LRFD will produce a suitable estimation.
The load-slip relationships proposed by Ollgaard and Buttry can be used to predict the load-slip curves of large diameter and high strength welded stud connectors.
American Psychological Association (APA)
Yang, Fei& Liu, Yuqing& Li, Yongjun. 2018. Push-Out Tests on Large Diameter and High Strength Welded Stud Connectors. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1116058
Modern Language Association (MLA)
Yang, Fei…[et al.]. Push-Out Tests on Large Diameter and High Strength Welded Stud Connectors. Advances in Civil Engineering No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1116058
American Medical Association (AMA)
Yang, Fei& Liu, Yuqing& Li, Yongjun. Push-Out Tests on Large Diameter and High Strength Welded Stud Connectors. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1116058
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116058