Escalib Mills_GB

10 E s C A L I B M I L L s M D s : s I T E s P I R A L s T A I R C A s E W I T H s I D E E X I T EsCALIB MILLs MDs High performance and strength ... If “d” is greater than 20 cm, wind bracing may be required to reinforce the anchor system. Configuration 2 requires special calculations. For a given direction, forces from both ways must be taken into account. >Anchor points: Configuration 1: d ≤ 20 cm Configuration 2: 20 cm < d < 2.00 m Anchor Anchor Anchor V T V T Anchor d d > Stresses on the anchor points in configuration 1: The results are presented at sLs. Wind speeds are not weighted. To calculate values for the ultimate limit state, ULs: 1.5 x SLS Base module 8 module 7 module 6 module 5 module 4 module 3 module 2 module 1 1 module Self- supporting in winds up to 120 km/h 2 modules Self- supporting in winds up to 72 km/h 3 modules 4 modules 5 modules 6 modules 7 modules 8 modules Anchor points required every 3 modules for a wind speed less than 145 km/h (for higher speeds see table 1). Anchorage height If the anchors used cannot withstand the load calculated, increase the number of anchor points. ASTUCE Vp : 90 100 110 120 130 140 150 160 170 180 190 km/h q p : 38 47 57 68 80 93 106 121 137 153 171 daN/m² (V) (daN) 900 800 700 600 500 400 300 200 100 Vp : 90 100 110 120 130 140 150 160 170 180 190 km/h (T) (daN) 550 450 350 250 150 50 q p : 38 47 57 68 80 93 106 121 137 153 171 daN/m² Shearing stresses (V) : Anchor Escalib point density height Every 3 Every 2 modules modules 7-8 modules 5-6 modules 3-4 modules 1-2 modules Pullout forces (T) : Ground loads P+Q (daN) Number of modules 1 2 3 4 5 6 7 8 Max. load per foot 673 1050 1244 1339 1434 1529 1624 1719 Total load 1379 2355 2999 3379 3759 4139 4519 4899 > Ground loads: Assumptions: I -Wind action as in EN 1991-1-4: - f = 0.23 and Cf = 2.73 - v p : Wind speed (km/h). - q p : Peak wind pressure (daN/m²). 2 -Working load Q: - 8 persons per Escalib Mills module. - Up to a maximum of 20 for the complete stair tower. - Stair tower not to be used for winds of over 65 km/h. 3 -Weight (P) of Escalib Mills. (T) (da ) ( ) ( If a net (  = 20%) covers the Escalib Mills, consider a pressure q p multiplied by 1.4. T o make it easier to size the anchor points and ground bearing for the Escalib, the ground load calculations and the forces at the anchor points are given for the various configurations.