Structural Tubing Telescopic Connection
Structural Tubing Telescopic Connection
(OP)
Two pieces of tubular steel sections (round or square or rectangular) are telescopically connected as shown on the attached sketch. How to calculate/determine minimum overlapping length in order to develop full moment capacity of the smaller section?
Thank you,
IV
Thank you,
IV






RE: Structural Tubing Telescopic Connection
i'd anticipate bolts; a minimum of two rows would produce a reasonable bending connection.
how tightly do the two pieces fit together ?
obviously, if there is a lot of clearance, the two pieces will act more like a plastic hinge.
RE: Structural Tubing Telescopic Connection
Dik
RE: Structural Tubing Telescopic Connection
1. Calculate Moment capacity of smaller section = SxFb
2. Calculate a couple equal to M/d where d = overlap length
3. Calculate shear strees equal to Couple/Av where Couple equals M/d & Av equals shear area in vertical legs
4. Check shear stress against allowable
5. Recalculate overlap length and repeat until shear stress is less than allowable.
This analysis assumes a tight fit between the pieces.
RE: Structural Tubing Telescopic Connection
RE: Structural Tubing Telescopic Connection
RE: Structural Tubing Telescopic Connection
RE: Structural Tubing Telescopic Connection
RE: Structural Tubing Telescopic Connection