Abstract
The prefabricated cement-based partition wall has been widely used in assembled buildings because of its high manufacturing efficiency, high-quality surface, and simple and convenient construction process. In this paper, a general porous partition wall that is made from cement-based materials was proposed to meet the optimal mechanical and thermal performance during transportation, construction and its service life. The porosity of the proposed partition wall is formed by elliptic-cylinder-type cavities. The finite element method was used to investigate the mechanical and thermal behaviour, which shows that the proposed model has distinct advantages over the current partition wall that is used in the building industry. It is found that, by controlling the eccentricity of the elliptic-cylinder cavities, the proposed wall stiffness can be adjusted to respond to the imposed loads and to improve the thermal performance, which can be used for the optimum design. Finally, design guidance is provided to obtain the optimal mechanical and thermal performance. The proposed model could be used as a promising candidate for partition wall in the building industry.
Highlights
The optimum design of the prefabricated components is key to energy savings, environmental protection, and the maximum life of building products [1,2,3]
The porosity that is used for the partition wall is approximately 35%, which is utilized in this analysis
A general porous model is proposed for a prefabricated partition wall
Summary
The optimum design of the prefabricated components is key to energy savings, environmental protection, and the maximum life of building products [1,2,3]. The prefabricated cement-based partition wall has been widely used in assembled buildings because of its high manufacturing efficiency, high-quality surface, and simple and convenient construction process. The partition wall is up to 50% of the total weight of the entire structure, even though it does not participate as a structural member. Porous partition walls with cavities have been widely used in recent years. Due to the existence of the cavities, the partition wall, similar to other porous structures [4,5,6,7], is often subjected to complex stress conditions under external loads. The thermal performance of the partition wall is an important factor in the design. The focus of this work is to provide a better model to obtain the optimal mechanical and thermal performance
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