Installation Typicals - Fastening on Steel Threaded Studs
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x
x
2 studs
4 studs
Application
• Fastening of cable trays, pipes on a L-Post support, which is fastened on a
horizontal structure
• Support is fastened by two / four X-BT-MR (horizontal distance x)
• L1 is the distance of the load center to the vertical structure surface
• 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
• Load F acting at the distance of L1 from structure surface
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
3.0
47.00 30.75 22.75 14.50 10.50 8.00 6.50 5.25
4.0
62.50 41.00 30.25 19.50 14.00 10.75 8.75 7.00
5.0
78.25 51.25 37.75 24.25 17. 50 13.50 10.75 9.00
6.0
94.00 61.50 45.50 29.25 21.25 16.25 13.00 10.75
7.0
109.75 72.00 53.00 34.25 24.75 19.00 15.25 12.50
8.0
125.25 82.25 60.50 39.00 28.25 21.75 17.50 14.25
Result:
Load
F [lbs]
L1 [inch]
6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0
x
[inch]
3.0
647 359 249 190 154 129 112 98
4.0
809 462 323 249 202 170 147 129
5.0
952 558 395 305 249 210 182 160
6.0
1,079 647 462 359 294 249 216 190
7.0
1,192 731 527 412 338 287 249 220
8.0
1,294 809 588 462 381 323 281 249
Result:
Load
F [lbs]
L1 [inch]
6.0 12.0 18.0 24.0 30.0 36.0 42.0 48.0
x
[inch]
3.0
323 180 124 95 77 65 56 49
4.0
404 231 162 124 101 85 73 65
5.0
476 279 197 153 124 105 91 80
6.0
539 323 231 180 147 124 108 95
7.0
596 365 263 206 169 143 124 110
8.0
647 404 294 231 190 162 141 124
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
3.0
22.75 14.50 10.50 6.50 4.50 3.25 2.50 1.75
4.0
30.25 19.50 14.00 8.75 6.00 4.25 3.25 2.50
5.0
37.75 24.25 17. 50 10.75 7.50 5.50 4.00 3.25
6.0
45.50 29.25 21.25 13.00 9.00 6.50 5.00 3.75
7.0
53.00 34.25 24.75 15.25 10.50 7.75 5.75 4.50
8.0
60.50 39.00 28.25 17.50 12.00 8.75 6.75 5.00
Technical assessment — maximum of L1 and F (depending on load F or lever arm length L1 and X-BT-MR distance x)
FASTENING L-POST SUPPORT
WITH X-BT-MR*
Two / Four X-BT-MR Threaded studs
X-BT-MR • Imperial
*X-BT-MR is the new generation X-BT
NOTE: load capacity used for calculation N
rec
= 810 lb (axial) / V
rec
= 970 lb (shear)
78Issued August 2018, expiry January 2022