Novel shearhead reinforcement for slab-column connections subject to eccentric load and fire

• Autorzy: Al-Hamd Rwayda Kh. S. , Gillie Martin , Cunningham Lee S. , Warren Holly , Albostami Asad S.

Identyfikatory

DOI

10.1016/j.acme.2018.12.011

• Języki publikacji: EN

Abstrakty

EN

Traditional means of reinforcing concrete flat slab-column connections against punching shear, such as increasing slab thickness, or provision of shear links, all have drawbacks. This paper proposes a novel type of punching shear reinforcement in the form of a shearhead to enhance connection strength and ductility. The structural behaviour of the connection is explored experimentally by testing nine specimens under various loading conditions including eccentric loads that produce combined axial and bending effects. Specimens with and without shearheads are compared. This is followed by a detailed numerical investigation using finite element analysis to obtain more in-depth insights into the connection behaviour when shearheads are present. The performance of the proposed system is also investigated under fire conditions for the first time. It is found that the proposed shearheads improve the performance of slab-column connections in all conditions and particularly under concentric loading and in fire conditions.

Słowa kluczowe

EN

punching shear; eccentric load; shearheads; finite element modelling; fire

PL

modelowanie elementów skończonych; ogień; nożyce wykrawające

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 2
• Strony: 503--524
• Opis fizyczny: Bibliogr. 42 poz., rys., tab., wykr.

Twórcy

autor

Al-Hamd Rwayda Kh. S.

• School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester M13 9PL, UK
• Al-Nahrain University, Baghdad, Iraq

autor

Gillie Martin

• The School of Engineering, The University of Warwick, Coventry, CV4 7AL, UK

autor

Cunningham Lee S.

• School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester M13 9PL, UK

autor

Warren Holly

• International Paint Ltd, Stoneygate Lane, Felling, Gateshead, Tyne and Wear, NE10 0JY, UK

autor

Albostami Asad S.

• School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester M13 9PL, UK

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