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That's exactly what I needed. Thank you.

Where in the NDS is this issue addressed? I am having difficulty finding it. Thank you.

Thank you both very much for your help.

I have a simple 3D truss that will be used to support a small wind generator. My truss is subjected to a gravity joint dead load and a joint wind load due to the wind generator. I feel fairly confident that I am capable of performing a vibration analysis of my truss (the wind generator company...

Does anybody have any information or recommended resources for blast resistant design of concrete structures? I've got a few books on the way from Amazon, but was wondering in the meantime if anybody has any experience designing for blast resistant structures and any input or thoughts they...

CSI recommends using thin shell elements for nearly all concrete wall/slab elements. I'm not quite sure about the second part of your question. Can you be more specific? Thanks.

I've played around with RISA, STAAD and RAM programs and ETABS seems to be far easier to use than the others. If you have problems with elements not aligning and other geometric issues, you might review your input methods. I've been using SAP and ETABS for about 3 years now and have not had...

Has anyone tried to create material property data for wood in SAP? I know it can't "design" wood sections, but I would at least like to analyze frame sections with wood material properties. I would greatly appreciate a look at the material property data you used. Thank you.

KBVT, Where is the clause you are referring to? Thank you.

Most texts and manuals I've referenced seem to indicate that traditionally wood diaphragms are idealized as being flexible. The lateral analysis for flexible diaphragms is easier than a rigid analysis and can sometimes result in a more conservative design. That being said, when looking through...

Seny, ACI 318 8.8 states that it is permitted to assume both ends of a column are fixed when computing gravity load moments, assuming the column is built integrally with the structure. I'm not sure why you would fix the top and release the bottom as you stated above. If you are going to...

They're definately not. I'm in the same boat you're in. I've pretty much resolved to just experimenting with the program to see what affects different meshing techniques have on output and also tinkering with the lateral force generation, etc.

I agree with slickdeals. The shearwall locations are not optimal for the geometry of your building.

I bought both the concrete and steel training manuals. I was disappointed with both of them. They are decent, but certain topics I had hoped to find were not included. I was looking for detailed descriptions of meshing and output results. If you are relatively familiar with Etabs, then the...

Thank you for your help. That is definately the best way to do it.

structuresguy, We use Etabs as well and are beginning to use Revit also. Are you satisfied with the link between Etabs and Revit? I've been hesitant so far to transfer data between the two. Thanks for your input.

I would like to model a steel gusset plate in SAP. Is there an easy way to draw or create an odd-shaped steel plate? I've tried creating a 3d face in autocad and importing it, but even that is proving difficult. Is there anything in the SAP program to help me? Thank you.

The gusset plate is in a planar truss.

Can anybody point me to a good, simple, free design guide for the design of steel gusset plates? Or, is that asking too much? Thank you.

I'm having trouble finding info about the blocking for a 20' tall 2x6 wall. Obviously, I don't want the studs to run 20' without any blocking inbetween them. Everyone I've talked to seems to think blocking at mid-height is sufficient, but I can't find anything in a text or code about it. I...