215 ACCESS STAIRCASES- TECHNICAL INFORMATION - 2023 STAIRCASES WORKSITE ACCESS DESIGN CHART Access tower with PANATRAP 4-standard CRABESCAL access tower with steel flight 4-standard CRABESCAL access tower with aluminium flight 10-standard CRABESCAL worksite staircase with steel flight - width 1.00 m H 1.50 or 2.00 3.00 H 1.00 2.50 2.00 1.00 H 0.70 or 1.00 2.00 to 3.00 H 1.50 2.50 Design assumptions •Compliant with standard NF EN 12811-1 •Class 3 working load (200 daN/m2) on 1 level of loaded deck •Structure anchored vertically every 4.00 m •Admissible load of uprights calculated with lf = lo = 2.00 making 2,494 daN for a MULTICRAB upright Max. height of the structure (in m) with MULTICRAB upright Width Length 2.00 m 2.50 m 3.00 m 0.70 m 34 m 30 m 26 m 1.00 m 28 m 24 m 20 m Design assumptions •Compliant with standard NF EN 12811-1 •Load-bearing capacity compliant with standard NF P 93-521 (personnel access and evacuation) •Structure anchored vertically every 4.00 m •Admissible load of uprights calculated with lf = lo = 2.00 making 2,494 daN for a MULTICRAB upright Max. height of the structure Access tower 1.50 m wide Hmaxi = 46 m Max. height of the structure Access tower 2.00 m wide Hmaxi = 42 m Design assumptions •Compliant with standard NF EN 12811-1 •Load-bearing capacity compliant with standard NF P 93-522 type A (personnel access and evacuation) •Structure anchored vertically every 4.00 m •Admissible load of uprights: lf = lo = 2.50 m i.e. for a MULTICRAB upright = 1,731 daN for a CRABÉTAI upright = 2,748 daN Max. height of the structure with MULTICRAB UPRIGHT Hmaxi = 22 m Max. height of the structure with CRABÉTAI UPRIGHT Hmaxi = 62 m Design assumptions •Compliant with standard NF EN 12811-1 •Load-bearing capacity compliant with standard NF P 93-521 (personnel access and evacuation) •Structure anchored vertically every 4.00 m •Admissible load of uprights calculated with lf = lo = 2.00 making 2,494 daN for a MULTICRAB upright Max. height of the structure with MULTICRAB upright Hmaxi = 74 m The maximum heights are given for independent accesses. If they adjoin or are integrated into a MULTICRAB framework, a specific design note must be produced. Our design offices are at your disposal for any further information you may require.
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