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I am looking for recommendations for an easy to use and inexpensive program or spreadsheet to check steel tube truss design as well as the overall building design. I saw a thread from '05 (thread507-132180) but figure there has been enough changes that it may be worth asking again. These are...

Thanks Don, Is the 36in. x 36in. a minimum? We have 42in. x 42in. shower bases. If the governing authority has not adopted ADAAG; the IBC and ICC/ANSI leave a large gray area regarding this issue, could I reasonably argue that since a tub (with a 15in. + side) is permitted with a transfer type...

I am working on an accessability issue for an assisted living home group R4. I cannot find any definative proof that a shower base with a 4-inch lip cannot be used with a transfer type seat. A tub with a transfer seat is acceptable, why wouldn't a 4" lip be acceptable? The framing and...

Am I pushing the envelope if I do not use any joints? Which presents the most risk; installing a joint that may leak or not installing any joints and the cracks that develop may leak??

I am designing an underground sanitary tank. What would be the best way to connect the lid (either cast on the ground and craned on top or pre-stressed craned on top) to the walls to give walls stability to resist deflection from backfill loads? I was thinking of dowelling and epoxy into the...

Thanks again everyone, What would be the best way to connect the lid (either cast on the ground and craned on top or pre-stressed craned on top) to the walls to give walls stability to resist deflection from backfill loads? I was thinking of dowelling and epoxy into the top of the walls thru...

Thanks to all. Stevemort: How much training does the RISA program require and approximate cost for program/training? herewegothen: That would be great if you can send the details on lifting sockets. What is FEA? Here is secondary problem associated with adding top on after walls are...

I have a little spin to add to a standard concrete tank design. With the underground concrete tank I am working on, the contractor/timeline requires to form and pour the lid on the ground while working on the floor and walls. When the walls are complete with adequate cure time, the lid(s)...

I have a little spin to add to this type of design. With the underground concrete tank I am working on, the contractor/timeline requires to form and pour the lid on the ground while working on the floor and walls. When the walls are complete and adequate cure time, the lid(s) would be craned...

Thanks Civilperson, That is a good thought, but I have 8 screwpiles - 4 under each tank. Should I analyze each tank independently (1 load and 4 piles) and then design the concrete pad (pilecap) to support the 2 tanks on one pilecap?

I am working on a foundation design to support two water tanks on a concrete pad that will be supported by screw piling. Where can I find a reference for this type of installation. The CRSI (Concrete Reinforcing Steel Institute design handbook details design for individual columns with...