Application of Three-dimensional Bridge Product Modeling towards the Strategic Maintenance of Steel Bridges

摘要

A vast amount of bridge stock is superannuating in Japan. Therefore, how to efficiently maintain this bridge stock in light of restrictions on budgets and human resources is becoming a pressing domestic task. Given this situation, the introduction of CIM is positively being promoted by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT). CIM (construction information modeling) undertakes the integrated control of a project process from survey and planning to design, construction and maintenance on a platform based on 3D-PDM (three-dimensional product modeling). 3D-PDM is a model in which construction information is modelled by adding as attribute information the materials, specifications, performance, tonnage and cost information that are required in the respective processes of the project to a three-dimensional model having the geometrical information.