Installation Typicals - Fastening on Steel Threaded Studs

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APPLICATION OVERVIEW
DISCLAIMERHOW TO USE THIS DOCUMENT
Application
• Fastening of cable trays, pipes on a horizontal cantilever support, fastened on a
vertical structure
• Support is fastened by two X-BT-MR (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-MR 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-MR (worst-case)
• Load F acting at the distance of L1 from structure surface
FASTENER TECHNICAL DETAILS
x
2 studs
per strut
Result:
Load
F [kg]
L1 [m m]
150 200 250 400 600 800 1000 1200
x
[mm]
80
150 125 105 70 50 35 30 25
100
175 145 125 85 60 45 35 30
125
195 165 145 100 75 55 45 40
150
215 185 160 115 85 65 55 45
175
235 200 180 130 95 75 65 55
200
250 215 190 145 105 85 70 60
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
620 385 270 200 150 95 60 35
100
775 480 335 250 190 115 75 45
125
970 605 420 310 240 145 90 55
150
1160 725 505 375 285 175 110 65
175
1355 845 590 435 335 205 130 80
200
1550 965 675 500 380 235 150 90
NOTE: load capacity used for calculation N
rec
= 3.6 kN (axial) / V
rec
= 4.3 kN (shear)
Technical assessment — maximum of L1 and F (depending on load F or lever arm length L1 and X-BT-MR distance x)
FASTENING STRUT TO STEEL
WITH X-BT-MR*
Two / Four X-BT-MR Threaded studs
X-BT-MR • Metric
*X-BT-MR is the new generation X-BT
18Issued August 2018, expiry January 2022