Bridge information models for construction of a concrete box-girder bridge

摘要

Large construction projects involve collaboration among a large number of participants with different specialised knowledge from various construction processes. A readily accessible bridge information model is needed to enable engineers to innovate prefabricated bridge construction. Three-dimensional (3D) information models can include multi-layered information for different users such as designer, contractor and owner. A construction project lifecycle management system was suggested to integrate and to accumulate valuable information. In this paper, 3D bridge information models for an international concrete bridge construction project were built to integrate design and construction processes. The 3D bridge models were realised by considering work breakdown structure and product breakdown structure to enable digital mock-up and design enhancement and to shorten the learning time of construction engineers. The models were also utilised for the fabrication of precast box segments and for the geometry control during construction. Assessment from the construction director was discussed and additional usage of the bridge information models was suggested.