Tubular Truss – Overlapped K Connection Example – Rectangular Members
HSS Design Manual - Example 4-1.6.A
References
Ericksen, Jason, et. al HSS Design Manual, Volume 4:Truss & Bracing Connections. Glenview, IL: Steel Tube Institute, 2017.Details
From the reference:
Overlapped K Connection Examples. Provide an overlap of lov = 6" – overlap equals a negative gap. The overlap length is measured along the connecting face of the chord beneath the two branches. Projected length of the overlapping branch on the chord: lp = Hbi/sinꝊ = 5/sin35 = 8.72".
Refer to the figure in the reference for additional details.
Results
| Parameter | RAM Connection | Reference | Difference |
|---|---|---|---|
| Local yielding of branches due to uneven load distribution (kips) | 321.05 | 303 | 6%1 |
| Weld design – Intermediate result overlapped member – beoj (in) | 4.76 | 4.76 | None |
| Weld design – Intermediate result overlapped member– lej (in) | 26.96 | 26.96 | None |
| Weld design – Intermediate result overlapping member – beov (in) | 4.76 | 4.76 | None |
| Weld design – Intermediate result overlapping member– lej (in) | 22.28 | 19 | 15%1 |
Note: (1) Effective width are different due to change in the formulas from AISC 360-10 to 2016 version.