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Thanks everyone! Isolating the "middle" building with(2) joints seems to be the correct solution.

I have a 1 story, steel braced frame building. Overall dimensions are 385' by 140'. There are (2) 18'x30' corridors that connect the different wings of the facility. Should those corridors be separated from the main wings by expansion joints? If so, would it be advisable to connect the corridor...

Thank you everyone! This is extremely helpful. The difference between ACI and AASHTO on this subject is really surprising.

I have a project where I have to come up with schematic drawings for some underground structures (vaults, tunnels, etc). These are for estimating/feasibility and not for construction. Some will have lids close to the surface or be deeper and have manhole access. They will be under roadways...

I have an unusual situation. I have a steel building (HSS columns, W beams, Open web joists, plus some special joist profiles). The Arch is insisting the columns be in the same plane as the exterior metal studs. There are some locations where there will be braced frames, which will have the...

I have a 6-story automated parking garage (around 50' tall, floor to floor heights are very small). There is no good way to have shear walls in the east-west direction without eliminating spots. Due to floor height restrictions and parking restrictions, the building has to be a moment frame...