Abstract ▼ AI-Helper

The combination of construction and IT can be a method to do away with the labor-intensive character of construction site and the bygone management method. As for construction rebar work, the establishment of rebar shop drawing system aims to prevent the poor construction by improving the constructi...

The combination of construction and IT can be a method to do away with the labor-intensive character of construction site and the bygone management method. As for construction rebar work, the establishment of rebar shop drawing system aims to prevent the poor construction by improving the construction exactitude, to reduce the cost by reducing the loss rate of rebar and to shorten the construction period. A modeling instrument is needed to establish the rebar shop drawing system. This modeling instrument should be able to express the correlation among information efficiently. Plus, it should be able to express the design information systematically and without any loss. Thus, the UML(Unified Modeling Language), an object-oriented modeling method which provides the sophisticated abstract painting modeling was used to express the design object model on system and module along with flow chart. The flow of rebar information was analyzed by structure design process analysis and rebar shop drawing process analysis so that the analyzed information could be easily drawn by expressing it with favorite information in point of developer. Moreover, the design module behavior method was concretely defined by materializing the system and considering the rebar shop drawing system structure in system development environment. The algorithm of subordinate behavior in design module was explained, too. Rebar shop drawing program has a similar fundamental concept and structure with system design model but it doesn't contain the details for realization. Thus, program materialization using flow chart was carried out to improve the correlation between system design model and program code. Developed rebar shop drawing program was realized in accordance with each member. Based on this realization, performance evaluation on accuracy of drawing and rebar information expression and error test were carried out. As a result of performance evaluation, high efficiency was realized in information input part which needs the most man-hour and it noticeably reduced the information input time. Plus, user's manual work was minimized by judging various drawing conditions in drawing part. Expression of rebar information enabled us to find the member's location easily as it contained location information. Drawing and rebar information turned out to reduce user's mistake under KBES(Knowledge Based Expert System) environment which was based on structure standard so that more effective and practical result could be drawn.