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Composite action in insulated concrete wall systems

Shear tie connectors


Recent emphasis on sustainability and minimizing environmental footprint of buildings has increased the importance of energy efficient cladding systems. Insulated precast concrete wall panels can be designed to meet any practical thermal resistance requirements while maintaining an aesthetically pleasing product that is quickly erected and cost effective. Insulated panels fall into one of three categories: non-composite, partially composite, or fully composite. Fully composite panels are characterized by the ability of the exterior and interior concrete layers to work in conjunction to carry applied construction, service, and extreme loads. To achieve full composite action, shear ties are distributed along the length of the panel, directly connecting the exterior layer to the interior layer. Due to the importance of maintaining thermal resistance, shear tie systems are often proprietary, varying in material, size, and shape. This article discusses the performance of several tie systems currently available on the market.

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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