Application of Prefabricated Prestressed Fish Belly Beam Steel Support in Deep Foundation Pit Engineering

With the rapid development of urban construction, the scale and complexity of deep foundation pit engineering continue to increase, which puts forward higher requirements for foundation pit support technology. As a new type of deep foundation pit support technology, prefabricated prestressed fish belly beam steel support has been widely used and researched in recent years because of its advantages of large span, large space, green environmental protection and recyclability. Through the comprehensive analysis of a number of related literatures, this paper expounds the research status of the structural composition, working principle, application examples, technical superiority, and mechanical deformation characteristics of the prefabricated prestressed fish belly beam steel support, and points out the shortcomings of the current research, and looks forward to the future research direction, aiming to provide a reference for the further application and development of this technology in deep foundation pit engineering.