3.0 MODULAR SUPPORT SYSTEM
3.2.1 MT CONNECTION MECHANISMS MT-TFB OC
Description
Thread forming bolt for MT-70 , MT-80 , MT-90 , and MT-100 connection . Thread forming bolt is fastened using the TX-50 or an 11 / 16 " diameter socket .
Approvals / Listings
City of Los Angeles City of Los Angeles 2020 LABC LARR 26181
European Technical Assessment ETA-21 / 1017
Modular Support Systems Technical Guide , Edition 1
Material Specifications ����
F y
, ksi ( MPa ) F u
, ksi ( MPa ) 136.34 ( 940 ) 150.84 ( 1,040 )
Corrosion Protection
Hot-Dipped Galvanized ( HDG )
MT-TFB OC
��
�� “) mm ( in )
Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No . MT-TFB OC 0.07 ( 0.03 ) 250 2272084
Figure 1 - MT Connection
Table 59 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3
Tension lb ( kN )
Shear lb ( kN )
1,650 |
2,550 |
( 7.33 ) |
( 11.33 ) |
1 . Minimum safety factor , Ω , for tabulated values is 2.3 . 2 . Multiply tabulated values by 1.5 to obtain minimum Load and Resistance factor Design ( LRFD ) values . 3 . See Figure 1 .
Table 60 - Limit State Design ( LSD ) Load Data 1 , 2
Tension lb ( kN )
Shear lb ( kN )
2,140 |
3,310 |
( 9.53 ) |
( 14.73 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.6 . 2 . See Figure 1 .
2023
50