Welded/Bolted Wide Tee Connection to an HSS Column
References
American Institute of Steel Construction. 2011. Design Examples V14.1. Chicago, IL:American Institute of Steel Construction. p K-2
Details
From the reference:
Design a connection between an ASTM A992 W16×50 beam and an ASTM A500 Grade B HSS8×8×4 column using an ASTM A992 WT5×24.5. Use w-in.-diameter ASTM A325-N bolts in standard holes with a bolt spacing, s, of 3 in., vertical edge distance Lev of 14 in. and 3 in. from the weld line to the bolt line. Design as a flexible connection for the following vertical shear loads:
- PD = 6.20 kips
- PL = 18.5 kips
Note: A tee with a flange width wider than 8 in. was selected to provide sufficient surface for flare bevel groove welds on both sides of the column, because the tee will be slightly offset from the column centerline.
Refer to the figure in the reference for additional details.
Calculations
Vu = 1.2(6.20) + 1.6(18.5) = 37.0 kips
Results
| Parameter | RAM Connection | Reference | Difference |
|---|---|---|---|
| Tee Bolt Shear (kips) | 17.9 | 17.9 | none |
| Stem shear yielding strength | 117.3 | 117 | < 1% |
| Stem shear rupture strength | 79.56 | 79.5 | < 1% |
| Stem block shear rupture strength | 97.21 | 97.3 | < 1% |
| Weld capacity | 84.6 | 106 | Connector does not fit in support. Additionally, RAM Connection does not have the weld type for the standard tee used in the example. |
Input
The following data is input into the New Joint dialog:
Joint Data tab:
- Joint = BCF
- Beam/Section = W 16x50
- Beam/Material = ASTM A992 Gr50
- Column/Section = HSS_SQR 8x8x1_4
- Column/Material = H500 GrB Rectangular
Loads tab:
- V2 (beam) = 37 kips
The following data is input into the Connection Pad:
Tee group:
- Tee section = WT 5x24.5 (from AISC database)
- Material = A992 Gr50 (from AISC database, according to the reference example)
- Rows of Bolts, nr = 4
- Vertical edge distance, Lev = 1.25 in
- Horizontal edge distance, Leh = 1.99 in