Structural shear performance of insulated precast concrete sandwich panels with steel plate connectors

•Large experimental study analyses the shear performance of precast sandwich panels with steel plate connectors.•Connectors of varied thickness and depth give rise to different load capacities, stiffnesses and failure modes.•The insulation layer plays a significant role in preventing rotation in res...

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Bibliographic Details
Published in:Engineering structures 2020-07, Vol.215, p.110691, Article 110691
Main Authors: Kinnane, Oliver, West, Roger, Hegarty, Richard O.
Format: Article
Language:English
Subjects:
Cladding
Concrete
Connectors
Embedding
Failure modes
Façade
Insulation
Pre-cast concrete
Precast concrete
Reinforced concrete
Reinforcing steels
Sandwich panels
Sandwich structures
Shear
Shear connectors
Steel
Steel plates
Thermal resistance
Thin plates
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Summary:•Large experimental study analyses the shear performance of precast sandwich panels with steel plate connectors.•Connectors of varied thickness and depth give rise to different load capacities, stiffnesses and failure modes.•The insulation layer plays a significant role in preventing rotation in response to a shear load.•Finite element analysis is undertaken and identifies significant nonlinear behavior in the panel response. Precast concrete sandwich panels are an increasingly popular means of building cladding. They can be designed with high thermal resistance by embedding abundant insulation between two concrete wythes. Steel, in the form of thin plate connectors, remains one of the most common tie materials to support the outer wythe of concrete vertically, and transmit lateral forces from the external rain-screen to the internal structural wythe. The optimum design of steel shear connectors must satisfy thermal and strength capacity constraints. An extensive experimental study analyses the structural shear performance of precast concrete sandwich panels with steel plate connectors of various dimensions that give rise to different load capacities, stiffnesses and failure modes.
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2020.110691