Special Issue(Paper)
COMMON HANGING BRACKET CONSIDERING STANDARDIZATION FOR DIVERTING AND INSALLING JET FAN
2020 Volume 76 Issue 2 Pages I_157-I_168
Details
2020 Volume 76 Issue 2 Pages I_157-I_168
Jet fans installed for ventilation and smoke exhaust in the tunnel are overhauled every 5-10 years. In place of the jet fans that were removed for disassembly and maintenance, maintained jet fans are diverted and installed. Since jet fans have different installation structure depending on a manufacturer, it is necessary to produce new hanging brackets for hanging jet fans from the tunnel frame every time jet fans are diverted and installed. Therefore, there are concerns about the safety while jet fans are removed and the cost increase due to new productions of hanging brackets. In this study, we proposed the common hanging bracket which enabled the installation of jet fans with different installation structures depending on a manufacturer, and we examined a possibility of using the common hanging bracket. In addition, we mentioned the future maintenance of jet fans, which is expected to change significantly with the introduction of the common hanging bracket.
