U bolt Question
U bolt Question
(OP)
Using a U-bolt to clamp a plate to a structural pipe. Assuming both of the nuts on the u-bolt are torqued to the same torque, would the tension in the u-bolt itself be the sum of each of those preloads? For a bolt with a single nut, I calculate preload F from F=kD/T. For a u-bolt with two bolts, would the preload essentially be F= 2kD/T assuming the nuts were torqued equally?





RE: U bolt Question
The clamping load on the pipe will be equal to the total of the loads in the two legs of the U-bolt.
"If you don't have time to do the job right the first time, when are you going to find time to repair it?"
RE: U bolt Question
RE: U bolt Question
RE: U bolt Question
Just for fun, consider the situation where one nut is installed on the U-bolt by hand until it just contacts the plate. The torque applied to install this nut would be very tiny. Then the other nut is installed and torqued to a much higher level. The installation torque of each nut was far different, yet the resulting axial preload in the respective legs of the U-bolt is not that much different.
RE: U bolt Question
RE: U bolt Question