Acknowledgement
이 논문은 2020년도 정부(교육부)의 재원으로 한국연구재단의 지원(NRF-2020R1I1A3A04036824)을 받아 수행된 기초연구사업입니다.
When materials are to be transported vertically at the construction site, if the space is small, there is often a precarious situation in which materials are transported outside the scaffold or through the space secured by removing the safety footrest. In addition, if the safety foothold is removed, the reinstallation may not occur due to carelessness of a worker. To solve the problem of this particular case, we have created a safety foothold that is unnecessary to dismantle and can be opened.
이 논문은 2020년도 정부(교육부)의 재원으로 한국연구재단의 지원(NRF-2020R1I1A3A04036824)을 받아 수행된 기초연구사업입니다.