Building information modeling(BIM)has become prevalent in construction engineering management.However,the efficiency of traditional file-based BIM exchange between multidisciplinary teams remains low due to the transm...Building information modeling(BIM)has become prevalent in construction engineering management.However,the efficiency of traditional file-based BIM exchange between multidisciplinary teams remains low due to the transmission of redundant data from mostly unchanged BIM objects.Additionally,the traceability of changes between BIM files is limited.This paper proposes a traceable semantic differential transaction(tSDT)approach for open BIM exchange,which minimizes data redundancy and enables semantic-level traceability of BIM changes.Furthermore,openBIMdisk implements the tSDT and provides a Blockchain 3.0 virtual disk to support efficient,traceable,and secure BIM exchanges across multiple blockchain services.A pilot study of a modular construction project demonstrated the effectiveness of tSDT and openBIMdisk.Experimental results indicated that tSDT achieved minimal BIM redundancy for storing and restoring all BIM changes,using a sheer 0.007%of disk space on average.openBIMdisk facilitated BIM version management and object-level semantic traceability with a response time of 5.3 ms.The contributions of this paper are twofold.First,tSDT offers a novel and efficient approach for semantic BIM change traceability.Second,openBIMdisk provides BIM practitioners with a Blockchain 3.0 application featuring intuitive and user-friendly interfaces for BIM exchange.展开更多
基金supported by HongKong Research Grants Council(RGC)(Grant No.17200221)in part by Hong Kong Innovationand Technology Commission(ITC)(No.ITP/029/20LP).
文摘Building information modeling(BIM)has become prevalent in construction engineering management.However,the efficiency of traditional file-based BIM exchange between multidisciplinary teams remains low due to the transmission of redundant data from mostly unchanged BIM objects.Additionally,the traceability of changes between BIM files is limited.This paper proposes a traceable semantic differential transaction(tSDT)approach for open BIM exchange,which minimizes data redundancy and enables semantic-level traceability of BIM changes.Furthermore,openBIMdisk implements the tSDT and provides a Blockchain 3.0 virtual disk to support efficient,traceable,and secure BIM exchanges across multiple blockchain services.A pilot study of a modular construction project demonstrated the effectiveness of tSDT and openBIMdisk.Experimental results indicated that tSDT achieved minimal BIM redundancy for storing and restoring all BIM changes,using a sheer 0.007%of disk space on average.openBIMdisk facilitated BIM version management and object-level semantic traceability with a response time of 5.3 ms.The contributions of this paper are twofold.First,tSDT offers a novel and efficient approach for semantic BIM change traceability.Second,openBIMdisk provides BIM practitioners with a Blockchain 3.0 application featuring intuitive and user-friendly interfaces for BIM exchange.
