인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The assembly efficiency of prefabricated buildings significantly depends on the productive time taken to complete the hoisting operations of components. Therefore, the on-site measurement of the effective time needed for component assembly is crucial for identifying time wastage and improving construction efficiency. This study utilizes MODAPTS (Modular Arrangement of Predetermined Time Standards) and the stopwatch time method to determine the effective working hours of the assembly process. The component hoisting process is broken down into the following five operations, hooking & slinging, hoisting to the operating surface, adjusting the position, removing the load hook, and backing up. A case study of a Nanjing project showed that the average times for five assembly operations of steel components were 227, 279, 760, 160, and 94 seconds. The time variation in crane arm movements is more stable than that of component adjustments during connection operations. Human factors like phone usage, exiting the operation area, along with hoisting point design and production mistakes, greatly reduce hoisting operation efficiency. The results of this study can not only effectively identify the time waste in the assembly process, but also lay a foundation for standardized hoisting operations and calculation of standard working hours in the prefabricated construction industry. In addition, these results will help optimize the construction organization plan at the early decision-making stage and improve the efficiency of resource use, thus shortening the construction period and reducing the construction cost.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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