Abstract
Digital transformation of bridge engineering utilizes distinct modeling techniques to combine domain knowledge with digital information modeling. In particular, a long-span bridge is a key link in a transportation network, with more than 100 years of service life. BIM (building information modeling) is an effort towards improving the current data delivery in the construction industry. However, it is limited by the rigidity that geometry affords; this is particularly problematic when the structure to be modelled is a deformable body. The quality and value of information for the bridges can be enhanced by establishing a data-driven digital information delivery through the entire life-cycle of the bridges. In this study, a data-driven modeling algorithm for cable-stayed bridges is proposed, considering the geometry change determining the mechanical behavior. Data delivery is accomplished by a combination of datasets and algorithms based on the different purposes. The master information model considers alignment of the bridge and essential constraints for the main members, such as stiffening girders, pylons, and cables, between the digital models. Geometry control of the stiffening girders and tension forces of cables are supported by the modeling algorithm of the interoperable target configuration under dead load analysis. The suggested modeling algorithm is verified by comparison with previous analytical studies on cable-stayed bridges.
Highlights
In the construction industry, BIM has been implemented in numerous major construction projects for an improved collaborative working environment
To communicate with machines and for data analytics, the current BIM practices should be further aligned towards data-driven engineering
ISO 19650 is the international standard for managing information delivery across the entire life cycle of a construction project using BIM
Summary
BIM (building information modeling) has been implemented in numerous major construction projects for an improved collaborative working environment. The Industry Foundation Classes (IFC) represents a standardized open data model that meets the information requirements of the construction projects and is adopted in many BIM solutions. ISO 19650 is the international standard for managing information delivery across the entire life cycle of a construction project using BIM It contains all the principles and high-level requirements for organization and digitization [9,10]. Current BIM projects in bridge construction encounter difficulties in the sharing and delivery of information models between the BIM solutions due to the lack of interoperability. The geometric constraint method and the initial member force method have been adopted for the TCUD analysis This is the most distinctive mechanical property of cable structures, resulting in the challenging task of using BIM practices to define the geometry of digital models for cables. Information delivery, based on the suggested methodology, is applied to a cablestayed bridge
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