|Analysis of Factors for Improvement of Economic Feasibility of Construction Cost to Spread Application of OSC Construction Method for Apartment Housing
|Yun, WonGun ; Shin, Eun-Young ; Kang, Tai-Kyung
| Off-Site Construction; Precast Concrete; Construction Cost; Apartment House; Focus Group Interview
|Recently, as the problem of the traditional on-site labor-intensive construction production method has been raised due to changes in construction work labor and site conditions, the OSC method is gradually spreading as an alternative to this. Even in apartment houses, the application of the PC method is expanding centered on the underground parking lot, but the high cost structure is a problem compared to the conventional formwork method. In this study, factors affecting the calculation of construction cost in the economic evaluation, which are the core of determining the construction method for apartment buildings, are derived through domestic and foreign literature review and expert advice, the importance was analyzed through an opinion survey targeting industry experts. The measures to reduce construction cost were mainly derived from the improvement of the design and manufacturing process. It is expected that the factors affecting the construction cost and improvement measures of the PC method derived from this study will serve as a direction for technology development to spread the application of the PC method for apartment houses in the future.