Innovative Upscaling of Architectural Elements for Strengthening Building Structures

• Main Author: Hing-Ho Tsang
• Format: Article
• Language: English
• Published: MDPI AG 2019-05-01
• Series: Sustainability
• Subjects: building structure; strengthening; seismic retrofitting; aesthetic; heritage; conservation; architectural element; reinforced concrete; connection; structural art
• Online Access: https://www.mdpi.com/2071-1050/11/9/2636

For conservation of heritages or life prolongation of aged buildings that contributes to environmental sustainability, there is a global need of structural strengthening or upgrading so as to restore their original functions or fulfil more stringent performance requirements stipulated in modern design codes of practice. However, the actual implementation is usually met with resistance from the property owner; hence, it is desirable to adopt an effective, economical and less invasive technique. In order to provide a further incentive, this article explores an innovative idea of upscaling decorative architectural elements, such as brackets, knee braces and corbels, in order that they also possess adequate strength capacity to resist extreme loadings such as earthquake actions. The required dimensions of architectural brackets for seismic retrofitting of concrete beam-column joints are calculated for different levels of seismicity through a parametric study. It is demonstrated that the proposed design can enhance both the aesthetics and structural performance of a building. This exemplifies how art can be integrated into engineering design for solving real-world problems.