A New Structural System of a Transformable Guiding Bridge for Extreme Conditions

The article presents a new structural system of a transformable guiding bridge designed for the rapid arrangement of temporary transport crossings under extreme conditions. In modern emergency response, rescue, and military operations, damage to transport infrastructure significantly restricts the mobility of personnel and equipment, which necessitates the use of rapidly deployable and operationally flexible bridge systems. The paper provides a brief review of existing guiding bridge systems and identifies their main limitations, including restricted span length, installation complexity, and the need for additional supporting elements. Based on this analysis, a transformable guiding bridge concept is proposed, which employs temporary transformable supports during the installation stage and transitions into a single-span working configuration during operation. The article describes the structural solution of the bridge, its main components, and the installation and deployment technology. The proposed system allows rapid assembly and dismantling using minimal technical resources and personnel. The application of transformable temporary supports reduces the need for auxiliary works within the obstacle zone and enhances operational flexibility in complex terrain and environmental conditions. The obtained results demonstrate that the proposed transformable guiding bridge system represents an effective and promising engineering solution for the development of temporary transport infrastructure intended for use under extreme conditions.