Four-dimensional design and analysis of modular footbridges in developing countries

摘要

A 4D design approach of a footbridge in steel is presented in this paper. Morphological indicators are applied to select the appropriate typology and to have a first idea about the dimensions. A Warren truss is thus chosen, meeting a broad range of criteria related to the construction and use of these footbridges in developing countries, among other the adaptability in length from 9 m to 24 m, the transformability and movable character of the bridge. The structural analysis, including the design of the joints, is performed according to the design rules in the Eurocodes resulting in a lightweight structure. Much effort is put into the detailing in order to create a modular system with a single component which can be handled by hand and one joint configuration. The assembly is explained.