Installation Typicals - Fastening on Steel Threaded Studs

DOWNLOAD DRAWINGS (PDF) DOWNLOAD DRAWINGS (DWG) FASTENER OVERVIEW
APPLICATION OVERVIEW
DISCLAIMERHOW TO USE THIS DOCUMENT
x
2 studs
per strut
FASTENER SYSTEM
FASTENER TECHNICAL DETAILS
Application
• Fastening of cable trays, pipes on a horizontal cantilever support, fastened on a
vertical structure
• Support is fastened by two X-BT-MF (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 X-BT-MF 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 X-BT-MF (worst-case)
• Load F acting at the distance of L1 from structure surface
Result:
Load
F [kg]
L1 [m m]
150 200 250 400 600 800 1000 1200
x
[mm]
80
75 60 50 35 25 20 15 10
100
85 70 60 40 30 20 20 15
125
100 85 70 50 35 30 20 20
150
110 95 80 60 40 35 25 20
175
120 100 90 65 50 40 30 25
200
125 110 95 70 55 40 35 30
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
275 155 95 60 35 5
100
345 195 120 75 45 10
125
435 245 155 95 60 15
150
520 295 185 115 70 15
175
605 345 215 135 85 20
200
695 395 245 155 95 20
NOTE: load capacity used for calculation N
rec
= 1.5 kN (axial) / V
rec
= 2.2 kN (shear)
Technical assessment — maximum of L1 and F (depending on load F or lever arm length L1 and X-BT-MF distance x)
FASTENING STRUT TO STEEL
WITH X-BT-MF
Two / Four X-BT-MF Threaded studs
X-BT-MF • Metric
46Issued August 2018, expiry January 2022