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Found it. Never mind. Something to do with the Mobile District of the Core of Engineers. http://www.sam.usace.army.mil/en/guides/DesMan/Desman07.pdf Thanks anyways.

I have received comments referencing the MDO Design Manual. Does anyone know what this is?

Thank you all for your help and advice. I have had the wall lowered a foot and with the site grading I'm now at 8 ft above ground. That reduced the loading. The wall is 7-5/8 inch and acts as one. I've sized heavy gage Dur-O-Wal truss type horizontal joint reinf at 8 inches on center based on...

I have a 10 ft tall screen wall that the architect wants to be double wythe brick. He has placed 12"x12" pilasters (that I assume he wants also to be out of brick) at 9 ft on center. He doesn't want the brick wall to have a space in the middle that would allow for me to use reinforcing steel so...

Thank you all for your time and answers. MLM

I am working on an existing structure with no structural drawings to be found on file. What year did 50 ksi steel W-shapes become widely accessible and required? Also, does anyone know of a cheap standard test that can determine if an in-place W-shape is 36 or 50 ksi? Thank You, MLM

Those were good replies. I can see the buildability issue as a big deal. The mason has a string that stays level, which would cause the joints to grow at midspan. If the brick were able to be built following the L/600 curve, I don't think it would be very noticeable, but that won't happen. So, I...

After reviewing your answers, this is what I have decided is an appropriate approach to the problem of supporting brick on long span elements: "The curvature of the support should be limited to L/600 but it can exceed 0.30" if control joints are provided at 15 ft. o.c." With control joints...

I am aware of the commonly accepted limits of 0.30" or L/600 for brick lintels, whichever is less. For very long spans the 0.30 requirement can be unreasonable. For example, a 40 ft. span truss that deflects 0.50 inches (L/960) has less angular rotation than a 15 ft. beam that deflects 0.30...

jen4950 How long should ETABS take to run the analysis of a 30 story, 2 million sq ft, concrete building? I'm not very familiar with the program, but it is used in our firm. During a conversation the other day someone mentioned the model taking a day or two to run. Can this be right? MLM

How good is stainless in direct contact with Aluminum? When this issue first came up, the only thing that I thought of was stainless. Then came the comments about the specs calling for hot-dipped galvanized. I've always assumed that stainless was preferred, if not required. Is that assumption...

Is that good thing or a bad thing? MLM

I've got a project where Aluminum columns (and base plates) are being anchored to a concrete pier/footing. The contractor used your everyday common steel threaded anchor rods. In less than two weeks they are completely rusted over. The contract documents called for hot-dipped galvanized anchor...

Does anyone have any information or experience with Auger Pressure Grouted Displacement Piles? How do their installation and spacing requirements differ from traditional Auger-Cast-In-Place piles? Thanks, MLM

I believe that will work, thanks for you're help. MLM EIT JDA

I've got Lenton Terminator's and Form Savers all over this project, but they have to be shop prepared or machined (male/female ends). They can't machine these tips in the field. From my experience, welding rebar is not generally accepted, due to ductility issues. It can be done, but it's not...

I've got some auger-cast-in-place tension piles that have had the center tension bar broken off at about 1-2 ft above the top of pile. In order to get them to the top of pile cap, I need to mechanical splice on another bar with either the proper hook or terminator at the top. I could have them...

Does anyone know of a good estimation guide? I’d prefer an online guide that is divided into at least regions (if not by state) and is updated every quarter. The online guide that I have been using lately is: www.get-a-quote.net It is a nice site, but with the rising costs of building...