Modular Supports System Product Technical Guide June 2026 | страница 27

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.1.1 Cross-Section Properties of MT Profiles
Table 4- Cross-Section Properties of MT Angle Profiles 1, 2, 3
Description Symbol Units MT-10 MT-15
Profile of cross-section--
Design thickness Width- Depth- Weight Minimum specified yield strength Modulus of Elasticity Gross Section Properties 2 Gross cross-sectional area Gross section-modulus about x-axis Gross section-modulus about y-axis Radius of gyration of the gross section about x-axis Radius of gyration of the gross section about y-axis
t
w
Fy
E
Ag
Sx
Sy
rx
ry in( mm) in( mm) in( mm) lbs / ft( kg / m)
ksi( MPa) ksi( MPa)
in 2( mm 2) in 3( mm 3) in 3( mm 3) in( mm) in( mm)
0.047
0.059
( 1.2)
( 1.5)
0.79
1.06
( 20)
( 27)
1.02
1.38
( 26)
( 35)
0.314
0.527
( 0.47)
( 0.78)
40.6
40.6
( 280)
( 280)
29,500
29,500
( 203,400)
( 203,400)
0.092
0.155
( 59.62)
( 99.90)
0.0168
0.0376
( 275.1)
( 615.7)
0.0112
0.0251
( 183)
( 410.5)
0.352
0.473
( 8.94)
( 12.0)
0.261
0.353
( 6.64)
( 8.96)
Net Section Properties Net cross-sectional area
An
in 2
( mm 2)
0.053
( 34.42)
0.106
( 68.40)
Net section-modulus about x-axis
Sx
in 3
( mm 3)
0.0135
( 221.1)
0.0323
( 528.8)
Net section-modulus about y-axis
Sy
in 3
( mm 3)
0.0084
( 138.2)
0.207
( 339.9)
Radius of gyration of the gross section about x-axis
rx
in
( mm)
0.398
( 10.12)
0.517
( 13.14)
Radius of gyration of the gross section about y-axis
ry
in
( mm)
0.296
( 7.53)
0.386
( 9.81)
1. Tabulated values are in accordance with AISI S100-16, the North American Specification for the Design of Cold-Formed Steel Structural Members.
2. Tabulated gross properties are based on the full unreduced cross section of the profiles, away from the punched holes and slots.
3. C. G. is center of gravity of the profile cross-section.
Trapeze Load Tables for MT Angle Profiles
Table 5 – Allowable Beam Loads 1, 2, 4, 5
Span In( cm)
Max Allowable Concentrated Load P, lbs( N) MT-10
MT-15
Table 6 – Maximum Factored Beam Loads 1, 3, 5
Max Factored Concentrated Load P, lbs( N)
Span
In( cm)
MT-10
MT-15
Braced
Unbraced
Braced
Unbraced
24
58
58
208
195
( 61.0)
( 255)
( 255)
( 925)
( 865)
48
28
27
103
103
( 121.9)
( 120)
( 120)
( 455)
( 455)
72
18
13
67
67
( 182.9)
( 80)
( 55)
( 295)
( 295)
Braced
Unbraced
Braced
Unbraced
24( 61.0)
39( 170)
39( 170)
139( 615)
130( 575)
48( 121.9)
19( 80)
18( 80)
69( 305)
69( 305)
72( 182.9)
12( 50)
9( 40)
45( 200)
45( 200)
1. Loads are based on AISI S100-16 and CSA S136-16, the North American Specification for the Design of Cold-Formed Steel Structural Members.
2. Safety Factor for flexure is 2.0.
3. Resistance Factor for flexure is 0.75.
4. Multiply tabulated load values by 1.5 to obtain Load and Resistance Factor Design( LRFD) values.
5. Profile weight is accounted for in the tabulated load values.
26 Modular Support Systems Technical Guide Edition 2 | Installation Systems Hilti, Inc. 1-800-879-8000 | en español 1-800-879-5000 | www. hilti. com | Hilti( Canada) Corporation | 1-800-363-4458 | www. hilti. ca