Z-type shear connector for interface of hollow-core slab and cast-in-place topping concrete

E. Yuksel; A. Gullu; Y. Durgun; E. Binbir; E. Senol; A. Khajehdehi; H. Saruhan

doi:10.1016/j.engstruct.2020.110563

Z-type shear connector for interface of hollow-core slab and cast-in-place topping concrete

E. Yuksel^*
, A. Gullu
, Y. Durgun
, E. Binbir
, E. Senol
, A. Khajehdehi
, H. Saruhan

^*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

17 Atıf (Scopus)

Özet

Precast hollow-core slabs (PHSs) are widely used in precast construction due to their relatively low dead weight and easy assemblage. Cast-in-place topping concrete (TC) is utilized to obtain composite sections and to enhance in-plane stiffness of the slab system. Shear transfer between the layers of a composite slab can be provided by the upper face roughness of PHS. However, the roughening process may not be preferred in some plants. This paper evaluates the efficiency of Z-type shear connectors applied in the interface between PHS and TC. Three dissimilar interface conditions (i.e., Z-reinforced, smooth and rough) were studied experimentally in full-scale specimens. Push-off loading was applied to evaluate the interface shear transfer capability of the specimens, and Z-type shear connectors were found to be the most effective when they are applied at each joint between PHSs. The achievements of some code equations to assess interface shear strength were also investigated, and an alteration for the interface shear capacity equation of ACI 318M is proposed.

Orijinal dil	İngilizce
Makale numarası	110563
Dergi	Engineering Structures
Hacim	214
DOI'lar	https://doi.org/10.1016/j.engstruct.2020.110563
Yayın durumu	Yayınlandı - 1 Tem 2020

Bibliyografik not

Publisher Copyright:
© 2020 Elsevier Ltd

Finansman

This study was conducted in the framework of İTÜNOVA Technology Transfer Office Research Project titled “Evaluation of Interaction Between Hollow Core Slab and Topping Concrete”. The financial support provided by Turkish Precast Concrete Association through this project is greatly appreciated. The specimens were produced by Yapı Merkezi Prefabrikasyon A.Ş. and PB Prefabrik A.Ş. The study was conducted at the Structural and Earthquake Engineering Laboratory (STEELab) of Istanbul Technical University. Support from laboratory staff and the valuable contributions of Mr. Günkut Barka and Mr. Hakan Ataköy are gratefully acknowledged. This study was conducted in the framework of ?T?NOVA Technology Transfer Office Research Project titled ?Evaluation of Interaction Between Hollow Core Slab and Topping Concrete?. The financial support provided by Turkish Precast Concrete Association through this project is greatly appreciated. The specimens were produced by Yap? Merkezi Prefabrikasyon A.?. and PB Prefabrik A.?. The study was conducted at the Structural and Earthquake Engineering Laboratory (STEELab) of Istanbul Technical University. Support from laboratory staff and the valuable contributions of Mr. G?nkut Barka and Mr. Hakan Atak?y are gratefully acknowledged.

Finansörler
Turkish Precast Concrete Association
Istanbul Teknik Üniversitesi

Belgeye Erişim

10.1016/j.engstruct.2020.110563

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Z-type shear connector for interface of hollow-core slab and cast-in-place topping concrete",

abstract = "Precast hollow-core slabs (PHSs) are widely used in precast construction due to their relatively low dead weight and easy assemblage. Cast-in-place topping concrete (TC) is utilized to obtain composite sections and to enhance in-plane stiffness of the slab system. Shear transfer between the layers of a composite slab can be provided by the upper face roughness of PHS. However, the roughening process may not be preferred in some plants. This paper evaluates the efficiency of Z-type shear connectors applied in the interface between PHS and TC. Three dissimilar interface conditions (i.e., Z-reinforced, smooth and rough) were studied experimentally in full-scale specimens. Push-off loading was applied to evaluate the interface shear transfer capability of the specimens, and Z-type shear connectors were found to be the most effective when they are applied at each joint between PHSs. The achievements of some code equations to assess interface shear strength were also investigated, and an alteration for the interface shear capacity equation of ACI 318M is proposed.",

keywords = "Bonding, Interface shear strength, Precast hollow-core slab, Topping concrete",

author = "E. Yuksel and A. Gullu and Y. Durgun and E. Binbir and E. Senol and A. Khajehdehi and H. Saruhan",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = jul,

day = "1",

doi = "10.1016/j.engstruct.2020.110563",

language = "English",

volume = "214",

journal = "Engineering Structures",

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TY - JOUR

T1 - Z-type shear connector for interface of hollow-core slab and cast-in-place topping concrete

AU - Yuksel, E.

AU - Gullu, A.

AU - Durgun, Y.

AU - Binbir, E.

AU - Senol, E.

AU - Khajehdehi, A.

AU - Saruhan, H.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - Precast hollow-core slabs (PHSs) are widely used in precast construction due to their relatively low dead weight and easy assemblage. Cast-in-place topping concrete (TC) is utilized to obtain composite sections and to enhance in-plane stiffness of the slab system. Shear transfer between the layers of a composite slab can be provided by the upper face roughness of PHS. However, the roughening process may not be preferred in some plants. This paper evaluates the efficiency of Z-type shear connectors applied in the interface between PHS and TC. Three dissimilar interface conditions (i.e., Z-reinforced, smooth and rough) were studied experimentally in full-scale specimens. Push-off loading was applied to evaluate the interface shear transfer capability of the specimens, and Z-type shear connectors were found to be the most effective when they are applied at each joint between PHSs. The achievements of some code equations to assess interface shear strength were also investigated, and an alteration for the interface shear capacity equation of ACI 318M is proposed.

AB - Precast hollow-core slabs (PHSs) are widely used in precast construction due to their relatively low dead weight and easy assemblage. Cast-in-place topping concrete (TC) is utilized to obtain composite sections and to enhance in-plane stiffness of the slab system. Shear transfer between the layers of a composite slab can be provided by the upper face roughness of PHS. However, the roughening process may not be preferred in some plants. This paper evaluates the efficiency of Z-type shear connectors applied in the interface between PHS and TC. Three dissimilar interface conditions (i.e., Z-reinforced, smooth and rough) were studied experimentally in full-scale specimens. Push-off loading was applied to evaluate the interface shear transfer capability of the specimens, and Z-type shear connectors were found to be the most effective when they are applied at each joint between PHSs. The achievements of some code equations to assess interface shear strength were also investigated, and an alteration for the interface shear capacity equation of ACI 318M is proposed.

KW - Bonding

KW - Interface shear strength

KW - Precast hollow-core slab

KW - Topping concrete

UR - https://www.scopus.com/pages/publications/85083396022

U2 - 10.1016/j.engstruct.2020.110563

DO - 10.1016/j.engstruct.2020.110563

M3 - Article

AN - SCOPUS:85083396022

SN - 0141-0296

VL - 214

JO - Engineering Structures

JF - Engineering Structures

M1 - 110563

ER -

Z-type shear connector for interface of hollow-core slab and cast-in-place topping concrete

Özet

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Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

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