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Efficient structural sandwich wall panels devoid of thermal bridges


Citation

Bida, Sani Mohammed and Abd. Aziz, Farah Nora Aznieta and Jaafar, Mohd Saleh and Hejazi, Farzad and Abu Bakar, Nabilah (2017) Efficient structural sandwich wall panels devoid of thermal bridges. In: Global Civil Engineering Conference (GCEC 2017), 25-28 July 2017, Kuala Lumpur, Malaysia. (pp. 59-67).

Abstract / Synopsis

Reinforced concrete sandwich wall panels are developed to reduce the effect of thermal transmission across the wall systems. The reduction of the thermal transmission is achieved through incorporation of an insulating layer. However, this insulating layer led to a reduction of structural performance. The provision of shear connection in the sandwich system improved its structural integrity and increased with increase in a number of shear connectors. However, if the shear connectors are placed directly across the layers of the concrete wythes, it will decrease its thermal efficiency. The thermal and structural performance works in contrary effect to an increasing number of shear connectors. Hence, optimizing both structural and thermal efficiencies simultaneously in reinforced concrete sandwich system has been a challenge for a very long time. Therefore, this paper presents an alternative approach focusing on the thermal path method to produce an optimum shear connector used. This approach eliminates the direct transmission path between the two wythes and, at the same time, avoids the use of alternative materials such as fibre-reinforced polymers which could be uneconomical. With this method, both thermal and structural efficiencies are optimized using only conventional concrete and steel materials.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1007/978-981-10-8016-6_6
Publisher: Springer Nature Singapore
Keywords: Precast concrete sandwich panel; Shear connection; Thermal performance
Depositing User: Nabilah Mustapa
Date Deposited: 13 Aug 2018 11:10
Last Modified: 13 Aug 2018 11:10
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/978-981-10-8016-6_6
URI: http://psasir.upm.edu.my/id/eprint/64608
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