With respect to seismic site classification,does it make any difference if your foundations are placed on piles which are driven to bedrock?
Let's say I did a site classification based upon SPT, and found the average N in the first 100 ft to be 25. There is soil for the first 50', and bedrock...
Hey,
So I need to clear up some confusion here.
Let's say we have a typical building roof. It has main support girders, and purlins (or beams) that frame into the compression flange of the girders. Both the girders and beams are at the same top of steel elevation. On top of the beams is a...
Hello,
I am trying to find out the yield strength of a 36" diameter pipe which will be welded together. Any input or direction to a properties page would be helpful
Hello everyone,
Here is the dilemma. I have a typical building with base shears. The building has steel columns connected with anchor bolts to piers. The piers are reinforced with longituinal reinforcing and has stirrups that ties it all together. I have been trying to determine the...
Does it make sense though that it would be cumulative? I need somebody to talk to me in terms of an example here. Let's dumb it down. Let's say we have a single braced bay, two stories in height, with cross bracing at both floors of the bay. If we applied a horizontal force to the bay, it...
Another question,
lets say I have 2 sets of braces forming in, one set and column midlevel, the other at base level. Does this mean I have to design the column only for max tension force x1? What if I had three sets of bracing, is this max tension force x2?
Let me know.
Ok, let me get this straight........
Now the way I originally interpreted this is that as long as the column does not fail before the brace fails in COMPRESSION, I would be ok. The reason I assumed this was that the upper limit on this clause is a compression limit. But now you say I need to...
Hey,
Ok, need some help understanding this.
I have a building braced along a number of lines by HSS 6X6X1/2" members as cross bracing. I now need to check if this member complies with the slenderness requirements of Seismic Provisions, Cl.13.2.a. I have quite long lengths for the bracing...
Hello,
I am doing an analysis of a braced frame for an industrial building. I am confused over the isssue of whether or not I must perform a secondary analysis or not. It says in the new code that generally braced frames are analyzed without secondary effects. Is this true? I performed an...
