Thermal Expansion in Tension Rods
Thermal Expansion in Tension Rods
(OP)
Hi everyone,
Question in regards to post installed tension rods for in an old brick building. Long story short, we have a rectangular building and the front (short) face has separated from the rest of the building. The plan is to use tension rods tying the front face of the building to the back face of the building in order to restrain it from any suction loads that are applied to it, transferring the load from the front to the back wall and into the perpendicular shear walls. The problem is that we need to place these tension rods in the attic area of the building, which is not insulated and therefore the tie rods are subject to thermal expansion and contraction. I have been scratching my head over this one for a while and can't seem to come up with a solution on how I could keep our tension rod end bearing plates "snug" against the exterior face of the walls in all different temperatures. I considered using a spring to absorb some of the thermal expansion, but can't justify that, as I don't believe it would work in resisting the suction forces being transferred through it (it would just stretch and allow the front wall to deflect I think). Anyone have any experience with this? Thanks in advanced for any input!
aem
Question in regards to post installed tension rods for in an old brick building. Long story short, we have a rectangular building and the front (short) face has separated from the rest of the building. The plan is to use tension rods tying the front face of the building to the back face of the building in order to restrain it from any suction loads that are applied to it, transferring the load from the front to the back wall and into the perpendicular shear walls. The problem is that we need to place these tension rods in the attic area of the building, which is not insulated and therefore the tie rods are subject to thermal expansion and contraction. I have been scratching my head over this one for a while and can't seem to come up with a solution on how I could keep our tension rod end bearing plates "snug" against the exterior face of the walls in all different temperatures. I considered using a spring to absorb some of the thermal expansion, but can't justify that, as I don't believe it would work in resisting the suction forces being transferred through it (it would just stretch and allow the front wall to deflect I think). Anyone have any experience with this? Thanks in advanced for any input!
aem






RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods
I was looking at how much force would be imparted if you pre-tensioned them, but that seems excessive.
How much force is in each rod?
RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods
I saw this expansion on a project several years ago. A roof was sagging, so someone put a tension ring around the bottom using cable. As the roof continued to deflect (pushing the bottom outward), the cable just eliongated with it.
RE: Thermal Expansion in Tension Rods
RE: Thermal Expansion in Tension Rods