Cost-Oriented Design Optimization of Single Building Curtain Wall

A building curtain wall is an outer protective structure of a building composed of a panel and a supporting structure system. As the main materials of a building curtain wall, the optimization of the keel and panel is a problem that has attracted much attention from decoration enterprises. In order to reduce the cost of constructing a single building curtain wall and improve the economic benefits of decoration enterprises, in this study, the keel is taken as the key optimization objective, and a comprehensive optimization scheme is proposed for the deepening design stage of a single building curtain wall. This scheme firstly reduces the cost of the keel by optimizing the radius of the keel and then considers the overall degree of fit between the panel and the keel while optimizing the keel. Finally, in order to improve the processing efficiency of the keel, a reverse-cutting method is proposed based on the traditional forward-cutting method and then combined with the forward-cutting method to form a comprehensive cutting method. The feasibility of the optimization of both design and driving cost is verified with practical cases. The results show the following: Firstly, compared with the theoretical scheme, the average rate of cost saving for the keel when using the comprehensive optimization scheme is 9.56%. Secondly, the overall degree of fit between the optimized keel and the panel is evaluated, which effectively reduces the discontinuity of panel installation. Finally, the comprehensive cutting method proposed here is shown to improve the material utilization rate compared with the single forward-cutting method.

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