마찰계수

Table 2 : Friction coefficitnes, μ, from German Standard DIN 4421(ref 4) and prEN 12812(Ref3)

	Building material combination	Friction coefficient, μ
		Maximum	Minimum
1	wood / wood (rubbing surfaces parallel to grain or at right angles to grain)	1.0	0.4
2	wood / wood (one or both rubbing surfaces at right angles to grain (cross cut) or end grain)	1.0	0.6
3	wood / steel	1.2	0.5
4	wood / concrete wood / mortar bed	1.0	0.8
5	steel / steel	0.8	0.2
6	steel / concrete	0.4	0.3
7	steel / mortar bed	1.0	0.5
8	concrete / concrete	1.0	0.5

 

 

Table 2 : Friction coefficitnes, μ, from German Standard DIN 4421(ref 4) and prEN 12812(Ref3)