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Assume that I have a 1.5" metal deck spanning 4'-0" o.c between open web steel roof joists. The building is PEMB 100' wide and 50' long. The owner wants to put skylights 3'-0" X 3'-0" (70lb) every fourth joist. I am planning to reinforce deck for wind not gravity, but how do you reinforce the...

There are many ways of doing that. I do not have that much experiance but this is what I suggest. Put one beam horizontaly and adjust the elevation at end points as required. Then copy that beam as much as you want. Or use the align command if the arch already have a sloped materia.

Different mills haave different numbers. I will put a wording on my spec that the steel to meet the LEED version 2.2 Credit 4.1 and 4.2. for recycled content. What do you guys think ?

Thank you guys.

I need a document which supports the steel I use are recycled (for LEED). I read somewhere the A992 is more than 95% recycled. Does any body know where I can find the recycled content of A992 or any steel ?

I am Very Very sorry it was 24 B 61.

Can anybody tell me the properties for 16B61 ? And if I have more where can I find these info. Thanks

Thanks PEinc. But the book does not give me the working bond stress in the interface between the concrete (assuming 3000psi) and the bonding material (high strength grout). It gives you the bonding to rock.

I am designing post-tension anchor system to repair a dam. I am planning to use the “DYWIDAG post-tension system using bars” This is with a bar length of 40’ to 50' and will be anchored to concrete with approximately 110kips applied load on the rebar. My intention is to use cement grout. To...

I am designing post-tension anchor system to repair a dam. I am planning to use the “DYWIDAG post-tension system using bars” This is with a bar length of 40’ to 50' and will be anchored to concrete with approximately 110kips applied load on the rebar. My intention is to use cement grout. To...