Testing of insulated sandwich panels with GFRP shear connectors

2020 ◽  
Vol 209 ◽  
pp. 109954
Author(s):  
Hetao Hou ◽  
Wenhao Wang ◽  
Bing Qu ◽  
Chunxue Dai
Keyword(s):  
Sandwich Panels ◽  
Shear Connectors

scholarly journals Effect of shear connectors on strength of structural sandwich panels

2020 ◽  
Vol 2 (12) ◽  
Author(s):  
Mohamed Abo El-Naga Kandil ◽  
Mohamed Mahdy ◽  
Ahmed Hasanin Abdel Raheem ◽  
Ahmed Mohamed Tahwia
Keyword(s):  
Sandwich Panels ◽  
Shear Connectors

The Shear Behavior of Precast Concrete Sandwich Panels with W-shaped SGFRP Shear Connectors

2018 ◽  
Vol 22 (10) ◽  
pp. 3961-3971 ◽  
Author(s):  
Huanzhi Jiang ◽  
Zhengxing Guo ◽  
Jiabin Liu ◽  
Hui Liu
Keyword(s):  
Precast Concrete ◽  
Sandwich Panels ◽  
Shear Behavior ◽  
Shear Connectors

Composite behaviour of fibre-reinforced concrete sandwich panels with FRP shear connectors

2019 ◽  
Vol 198 ◽  
pp. 109475 ◽  
Author(s):  
Richard O′Hegarty ◽  
Roger West ◽  
Aidan Reilly ◽  
Oliver Kinnane
Keyword(s):  
Reinforced Concrete ◽  
Sandwich Panels ◽  
Fibre Reinforced Concrete ◽  
Shear Connectors

In-plane shear behavior of insulated precast concrete sandwich panels reinforced with corrugated GFRP shear connectors

2015 ◽  
Vol 79 ◽  
pp. 419-429 ◽  
Author(s):  
Ki-Bong Choi ◽  
Won-Chang Choi ◽  
Luciano Feo ◽  
Seok-Joon Jang ◽  
Hyun-Do Yun
Keyword(s):  
Precast Concrete ◽  
Sandwich Panels ◽  
Shear Behavior ◽  
Plane Shear ◽  
Shear Connectors

scholarly journals Thermal Resistance of Insulated Precast Concrete Sandwich Panels

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Sani Mohammed Bida ◽  
Farah Nora Aznieta Abdul Aziz ◽  
Mohd Saleh Jaafar ◽  
Farzad Hejazi ◽  
Nabilah Abu Bakar
Keyword(s):  
Thermal Resistance ◽  
Alternative Energy ◽  
Precast Concrete ◽  
Sandwich Panels ◽  
Green Building ◽  
Control Panel ◽  
Shear Connectors ◽  
Shear Connection ◽  
Concrete Layer ◽  
Structural Applications

AbstractMany nations are already working toward full implementation of energy efficiency in buildings known as Green Building. In line with this perspective, this paper aims to develop a thermally efficient precast concrete sandwich panels (PCSP) for structural applications. Therefore, an experimental investigation was carried out to determine the thermal resistance of the proposed PCSP using Hotbox method and the results were validated using finite element method (FEM) in COMSOL Multiphysics Software. The PCSP were designed with staggered shear connectors to avoid thermal bridges between the successive layers. The staggered connectors are spaced at 200 mm, 300 mm and 400 mm on each concrete layer, while the control panel is designed with 200 mm direct shear connection. In the experimental test, four (4) panels of 500 mm × 500 mm and 150 mm thick were subjected to Hotbox Test to determine the thermal resistance. The result shows that thermal resistance of the PCSP with staggered shear connection increases with increase in spacing. The PCSP with 400 mm staggered shear connectors indicates the best thermal efficiency with a thermal resistance (R value) of 2.48 m2K/W. The thermal performance was verified by FEA which shows less than 5% error coupled with a precise prediction of surface temperature gradient. This indicates that, with conventional materials, thermal path approach can be used to develop a precast concrete building with better thermal resistant properties. Hopefully, stakeholders in the green building industry would find this proposed PCSP as an alternative energy efficient load bearing panel towards sustainable and greener buildings.

scholarly journals Structural performance of hybrid sandwich slabs under shear loading

2017 ◽  
Vol 21 (3) ◽  
pp. 809-837 ◽  
Author(s):  
Mohammad Mastali ◽  
Joaquim Barros ◽  
Isabel Valente
Keyword(s):  
Load Capacity ◽  
Sandwich Panels ◽  
Shear Loading ◽  
Structural Performance ◽  
Special Focus ◽  
Shear Span ◽  
Shear Connectors ◽  
Shear Connection ◽  
Glass Fiber Reinforced ◽  
High Load Capacity

In a hybrid panel with glass fiber-reinforced polymer (GFRP) bottom skin and ribs, and deflection hardening cementitious composites (DHCC) top layer, it is very important to provide good shear connection between these various components in order to increase the load carrying capacity of the resulting hybrid slabs and a larger increment of deflection before the occurrence of the structural softening of this panel. The effectiveness of the proposed hybrid sandwich panels strongly depends on the performance of the shear connectors. The efficiency of indented shear connectors in improving the flexural performance of hybrid sandwich panels is here demonstrated. Since the efficiency of indented shear connectors in the hybrid sandwich panels is unknown, efforts are made in this paper in investigating the shear performance of hybrid slabs. A special focus is given on the indented shear connector’s behavior, considering different shear span ratios in ranges of 2.00, 1.39, and 0.77. In this regard, six hybrid sandwich panels were manufactured and experimentally tested under different shear loads. Then, the results are interpreted comprehensively. The results obtained show that the GFRP rib thickness and height, and shear span ratios influence the damage events and the structural performance of the hybrid sandwich panels. Moreover, it was observed that using indented shear connectors in the hybrid slabs, regardless of the shear span ratios, provides high load capacity, high stiffness, and large residual deflection.

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