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Hi All - Looking for a good online bookseller that isn't Amazon. Don't mind them but would like a more engineering oriented shop with a wider selection. Mostly looking for structural books. Suggestions? Thanks

I am currently working through the Gust Effect Factor in ASCE 7-02 and am stuck on the Damping Ratio in section 6.5.8.2. I haven't been able to find a good definition for this or a reference to use. So the question is - Where can I go to find what value I should use for various structures? Thanks!

Does anyone know of any code requirements that a building have tie beams between spread footings? We were asked recently why one of our buidlings didn't have tie beams between the spread footings by a reviewer. We moved past this issue too fast to talk about it, but it is one of the odd comments...

I am looking for a reference either by an organization or a maunfacturer that states what the vapor transmission rate (perms) is for a 6 mil reinforced polyethylene sheet. The only one I have been able to find is for unreinforced in ASTM and I need to know if the reinforcing makes a difference...

Hi, I have a project were the gyp sub attached the walls to metal building columns. We required that they maintain space around the columns to allow building movement. The question-are there any guidelines for allowable movement in gyp board walls? The walls are both parallel and perpendicular...

I am looking at the load capacity of roof purlins on a pre-engineered metal building. The building was constructed in the early 70's. The metal building company no longer exists and the city and owner do not have drawings. What I need to know is what was the predominate steel material used. Does...

I have an engineer in our office who has been told the statement that leveling nuts under a building column base plate should not be used if the anchor bolts are intended to take tension loads. Is this an AISC or OSHA issue or some other requirement? We don't know how to respond to this...

We are fairly new at designing tilt-up panels and how our drawings were set up were based on requirements from the contractor that we were teamed with. The contractor wanted to see every panel that was remotely different from the rest and wanted reinforcing, embed plates, reveals, panel...

Are there any instruments available to measure the drift of an existing building under wind loads?

I am trying to find an alternative to the oak wood blocking or poly bocking that we use between the baseplates of steel columns and concrete footings as a thermal break in food freezer structures. These two methods have become long lead time items or too expensive.