Installation Typicals - Fastening on Steel Threaded Studs

2 studs
4 studs
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x
x
Application
• Fastening of cable trays, pipes on a T-Post support, which is fastened on a
horizontal structure
• Support is fastened by two / four X-BT-MR (horizontal distance x)
• L1 is the total width of the T-Post, L2 is fix set to 1000 mm
• 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
• 2 Load cases: load asymmetric acting in the center of one arm only,
30% acting as horizontal load
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
3.0
200.00 135.25
4.0
266.75 180.50 137.25
5.0
333.50 225.75 171.75 117.75
6.0
400.25 270.75 206.00 141.25
7.0
467.00 316.00 240.50 165.00 127.25
8.0
533.75 361.25 274.75 188.50 145.25 119.50
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
386 386 386 386 386 386 386 386
4.0
505 505 505 505 505 505 505 505
5.0
619 619 619 619 619 619 619 619
6.0
729 729 729 729 729 729 729 729
7.0
835 835 835 835 835 835 835 835
8.0
937 937 937 937 937 937 937 937
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
193 193 193 193 193 193 193 193
4.0
252 252 252 252 252 252 252 252
5.0
310 310 310 310 310 310 310 310
6.0
364 364 364 364 364 364 364 364
7.0
417 417 417 417 417 417 417 417
8.0
468 468 468 468 468 468 468 468
Result:
L1 [inch]
F [lbs]
100 150 200 300 400 500 600 700
x
[inch]
3.0
103.00 70.50
4.0
137. 25 94.25 72.50
5.0
171.75 117.75 90.75 63.75
6.0
206.00 141.25 109.00 76.50
7.0
240.50 165.00 127. 25 89.50 70.50
8.0
274.75 188.50 145.25 102.25 80.50
Technical assessment — maximum of L1 and F (depending on load F or lever arm length L1 and X-BT-MR distance x)
FASTENING T-POST (FLOOR) 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)
76Issued August 2018, expiry January 2022