Product Technical Guides : CA-EN Modular Systems Product Technical Guide | страница 35

3.0 MODULAR SUPPORT SYSTEM 3.1.2 MT BEAM AND COLUMN LOAD TABLES
Modular Support Systems Technical Guide, Edition 1
Table 13- MT-20 Allowable Beam Loads: X-axis Bending 1, 2, 3, 4, 5, 6
Span in( cm)
Max Allowable Uniform Load lbs( N)
Defl. At Max Uniform Load in( cm)
Uniform Loading at Deflection
Span / 180 lbs( N)
Span / 240 lbs( N)
Span / 360 lbs( N)
12
1,115
0.02
1,115
1,115
1,115
( 30.5)
( 4,955)
( 0.05)
( 4,955)
( 4,955)
( 4,955)
24
555
0.08
555
555
480
( 61.0)
( 2,465)
( 0.20)
( 2,465)
( 2,465)
( 2,135)
36
370
0.17
370
320
215
( 91.4)
( 1,645)
( 0.44)
( 1,645)
( 1,420)
( 955)
48
275
0.31
240
180
120
( 121.9)
( 1,220)
( 0.78)
( 1,065)
( 800)
( 530)
60
220
0.48
150
115
75
( 152.4)
( 975)
( 1.22)
( 665)
( 510)
( 330)
72
185
0.69
105
80
50
( 182.9)
( 820)
( 1.76)
( 465)
( 355)
( 220)
Table 14- MT-20 Allowable Beam Loads: Y-axis Bending 1, 2, 3, 4, 5, 6
Span in( cm)
Max Allowable Uniform Load lbs( N)
Defl. At Max Uniform Load in( cm)
Uniform Loading at Deflection
Span / 180 lbs( N)
Span / 240 lbs( N)
Span / 360 lbs( N)
12
1,665
0.01
1,665
1,665
1,665
( 30.5)
( 7,405)
( 0.04)
( 7,405)
( 7,405)
( 7,405)
24
830
0.06
830
830
830
( 61.0)
( 3,690)
( 0.14)
( 3,690)
( 3,690)
( 3,690)
36
555
0.13
555
555
435
( 91.4)
( 2,465)
( 0.32)
( 2,465)
( 2,465)
( 1,930)
48
415
0.23
415
365
245
( 121.9)
( 1,850)
( 0.57)
( 1,850)
( 1,620)
( 1,085)
60
330
0.35
315
235
155
( 152.4)
( 1,465)
( 0.90)
( 1,400)
( 1,045)
( 685)
72
275
0.51
215
160
105
( 182.9)
( 1,220)
( 1.29)
( 955)
( 710)
( 465)
Table 15- MT-20 Allowable Column Loads 1, 2, 6, 7, 8, 9
Unbraced Height in( cm)
Max Allowable Load at Channel Face lbs( N)
K = 0.65 lbs( N)
Maximum Column Load Applied at C. G.
K = 0.80 lbs( N)
K = 1.0 lbs( N)
K = 1.2 lbs( N)
12
1,750
4,370
4,370
4,370
4,370
( 30.5)
( 7,780)
( 19,435)
( 19,435)
( 19,435)
( 19,435)
24
1,700
4,370
4,370
4,290
3,710
( 61.0)
( 7,560)
( 19,435)
( 19,435)
( 19,080)
( 16,500)
36
1,550
4,370
3,710
2,960
2,360
( 91.4)
( 6,890)
( 19,435)
( 16,500)
( 13,165)
( 10,495)
48
1,350
3445
2,745
2,060
1655
( 121.9)
( 6,005)
( 15,320)
( 12,210)
( 9,160)
( 7,360)
60
1,105
2,695
2,060
1,580
1,250
( 152.4)
( 4,915)
( 11,985)
( 9,160)
( 7,025)
( 5,560)
72
( 182.9)
900
( 4,000)
2,130
( 9,470)
1,655
( 7,360)
1,250
( 5,560)
**
Notes: 1. Loads are based on ICC-ES ESR-5019 and AISI S100-16, the North American
Specification for the Design of Cold-Formed Steel Structural Members. 2. Safety factors for flexure and compression are 1.67 and 1.80, respectively. 3. Allowable beam loads in table are given in total uniform load( W * Span) and based on a uniformly loaded condition with simply supported ends. For other loading and support conditions, see page 32 for applicable load and deflection modification factors.
4. Beams spans in table are assumed to be sufficiently laterally braced. Unbraced spans may reduce beam load carrying capacity. See page 49 for reduction factors for unbraced conditions.
5. Profile weight, 0.84 lbs / ft( 12.26 N / m), must be deducted from allowable beam load values.
6. Multiply tabulated load values by 1.5 to obtain Load and Resistance Factor
Design( LRFD) values. 7. C. G. is the‘ Center of Gravity’ of the cross section. 8. ** indicates KL / r for compression exceeds 200. 9. Maximum allowable load at channel face assumes K value of 0.8.
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mm( in)
2023
33