Vol. 9, No. 2, pp. 139-160 (2013)
PUSH–OUT EXPERIMENTS OF HEADED SHEAR STUDS IN GROUP ARRANGEMENTS
Milan Spremic 1*, Zlatko Markovic 1, Milan Veljkovic 2 and Dragan Budjevac 3
1 Faculty of Civil Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia
2 Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, S-97187 Luleå, Sweden
3 Faculty of Civil Engineering University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia
*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it. )
Received: 2 March 2012; Revised: 13 May 2012; Accepted: 23 July 2012
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ABSTRACT
Precast concrete slabs connected to the steel beams by headed shear studs arranged in groups may be used in high-rise office buildings to speed up construction process and improve quality by increasing the grade of industrialization. The paper presents experimental research performed on push-out tests at the Faculty of Civil Engineering University in Belgrade. The main goal has been to investigate possible reductions (if any) of shear stiffness and strength of five group arrangements consisting always of four headed shear studs, the shank diameter 16 mm and 100 mm height. A shape of group arrangement and its orientation to the applied load, and distance between the studs were variables considered. Intention was to have assmall as possible holes in precast concrete slabs so the distance between studs was lower than minimum required in Eurocode 4 [1]. Comparison is made with results obtained on specimen with uniformly distributed shear studs, according to requirements of the standard arrangement [1]. Material characteristics were obtained and push-out tests were preformed in procedures that fully comply with Eurocode 4. Experimental results were evaluated according to the design models in Eurocode 4 and available literature, Okada-Yoda-Lebet [2]. Recommendations for use of the group arrangements were proposed.
KEYWORDS
Headed studs, Group arrangement of stud connectors, Steel-concrete composite beams, Prefabricated concrete slab
REFERENCES
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