Installation Typicals - Fastening on Steel Threaded Studs

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FASTENING STRUT TO STEEL
WITH S-BT
Two / Four S-BT-MR / S-BT-MF Threaded studs
Technical assessment — maximum of L1 and F (depending on load F or lever arm length L1 and S-BT distance x)
Result:
L1 [mm]
F [kg]
50 75 100 125 150 200 250 300
→ Load in [kN] 0.49 0.74 0.98 1.23 1.47 1.96 2.45 2.94
x
[mm]
80
340 200 130 85 60 25
100
430 250 165 110 75 30 5
125
535 315 205 140 95 40 5
150
645 380 245 165 115 45 5
175
750 440 285 195 130 55 10
200
860 505 330 220 150 65 10
Result:
Load
F [kg]
L1 [m m]
150 200 250 400 600 800 1000 1200
x
[mm]
80
90 75 60 40 30 20 15 15
100
105 85 75 50 35 25 20 20
125
120 100 85 60 45 35 25 25
150
130 110 95 70 50 40 30 25
175
140 120 105 80 55 45 35 30
200
150 130 115 85 65 50 40 35
NOTE: load capacity used for calculation N
rec
= 1.8 kN (axial) / V
rec
= 2.6 kN (shear)
FASTENER OVERVIEW
APPLICATION OVERVIEW
DISCLAIMERHOW TO USE THIS DOCUMENT
S-BT-MR / S-BT-MF • Metric
x
2 studs
per strut
FASTENER TECHNICAL DETAILS
FASTENER SYSTEM
Application
• Fastening of cable trays, pipes on a horizontal cantilever support, fastened on a
vertical structure
• Support is fastened by two S-BT (horizontal distance x)
• L1 is the distance of the load center to the center of the fasteners
• Load F is the acceptable total load (all dead load including)
Boundary conditions
• These values are ONLY reflecting capacity of S-BT threaded stud. Structural
analysis of support / structure is NOT in Hilti scope. See the detailed statements in
disclaimer — 2018/05/04
• Shear load fully carried by one S-BT (worst-case)
• Load F acting at the distance of L1 from structure surface
32Issued August 2018, expiry January 2022