Seomun Construction
하이랙창고 VNA(Very Narrow Aisle)구간은 삼방향지게차 운행구간으로서 주행안정성과 작업능률극대화(Digonal pass)를 위해서는 매우 엄격한 바닥평활도기준이 적용되어야 합니다. 바닥평활도기준은 VDMA, DM(TR34) 있으며 시공방법으로는 Ultraflat Grinding과 Long Strip이 있습니다.
Figure B.4 The main prindple for the measurement of the curvature of a profile |
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Top beam level (m) | Zslope (mm/m) | dz = Z x Zslope |
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15 | 1,0 | Z x 1,0 mm/m |
10 | 1,5 | Z x 1,5 mm/m |
up to 6 | 2,0 | Z x 2,0 mm/m |
※ Note : For beam levels >6m, interpolation is required as illustrated in fiqure B.1 |
Distance between measurement l | Gap under straight line t |
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1m | 2mm |
2m | 3mm |
3m | 4mm |
4m | 5mm |
Figure B.3 Illustration for example - Fx |
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Top beam level [m] |
Floor classification |
MHE lift height | Property Ⅰ | Property Ⅱ | Property Ⅲ | |||||
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Wheel track up to 1.5m | Wheel track over 1.5m | ||||||||
95% | 100% | 95% | 100% | 95% | 100% | 95% | 100% | ||
Superflat (SF) | Over 13m | 0.75 | 1.0 | 1.0 | 1.5 | 1.5 | 2.5 | 2.0 | 3.0 |
Category 1 | 8-13m | 1.5 | 2.5 | 2.5 | 3.5 | 2.5 | 3.5 | 3.0 | 4.5 |
Category 2 | Up to 8m | 2.5 | 4.0 | 3.25 | 5.0 | 3.5 | 5.0 | 4.0 | 6.0 |