Threaded Rod Load Bearing Capacity

Dimensions sizes and dimensions of pipes and tubes and their fittings inside and outside diameter weight and more.

Threaded rod load bearing capacity.

Load distance l mm admissible load n contact. Thread shear is an important failure mode for a bolted joint and occurs when the threads shear off of either the bolt external thread shear or off of the nut or tapped part internal thread shear. Threaded rods can be used in both anchoring and suspension applications. Mass and weight the difference.

As 0 7854 d 0 9743 n squared where d equals nominal diameter in in. Rod size in tension load capacity canada factored load capacities. Force newton s third law mass and acceleration. If appropriate shear capacity must be reduced for large packings large grip lengths and long joints.

Fasteners bolts nuts and threaded rods torque tension and loads. When used for suspension they are threaded into an anchor in the ceiling and. Load bearing capacity for support channels. 1 kg 9 81 n.

And n equals thread per inch. Earthbound system threaded rod capacities. Max rec load lbs 600 f 750 f 1 4 20 0 12 240 210 3 8 16 0 29 610 540 1 2 13 0 54 1130 1010 5 8 11 0 83 1810 1610 3 4 10 1 25 2710 2420. Hanger support spacing rod sizes horizontal pipes.

There should be enough engagement between the bolt threads and internal threads that the bolt fails in tension before the threads shear. Pre assembly of component modules. Bolt torque calculator calculate required bolt torque. Threaded rods proof load capacities in metric units.

Proof loads and tensile strengths are computed by multiplying the proof load stresses and tensile strengths stresses by the stress area of the thread. Loads on threaded rods thread type. The tension capacity of the bolt is given by. Fully threaded rod is available in standard strength high strength and higher strength rod material in diameters up to 2.

If long slotted or kidney shaped holes are used bearing values should be multiplied by 0 5. Note that hangers supporting steam water air or gas piping systems should be able to carry the weight of piping insulation valves and other equipment. The tensile stress area a t is obtained from standards. 1 the maximum loads in the table above are based on allowable tensile stress of 12 kpsi reduced by 25 to 9 kpsi allowable stress.

Rod spec 1 2 100 3a 133 3b ibc 2006 09. Strong rod fully threaded rod all thread rod is the tension transfer element that can be used within both the anchor tiedown system for shearwall overturning restraint ats and the wind uplift restraint urs system. P nom 0 8p t a t nominal.