Karthik Madhur

Story displacements are given at the center of mass, drift is reported at selected locations.

For a rigid diaphragm, dynamic analysis with eccentricity we shift the center of mass by the 5% or other user input eccentricity value. For the Equivalent Lateral Force procedure we shift the point that the load is applied. We don't automatically apply…

Check the RAM DataAccess Developers Guide.pdf, I believe you can get unfactored and uncombined forces if that's what you want.

Our approach is that the gravity columns are assumed pinned and they lean upon the lateral frames so the lateral frames are designed for the full P-Delta effect of the entire set of gravity loads. For gravity concrete members we do implement ACI 318…

Sure, Modeler - Layout - Foundations (any type) - Modify Elevation can be used to raise or lower column bottoms.

251 looks like a corner of a wall which is a primary node. Intermediate nodes along walls may be shown as disconnected, but this really only matters for rigid diaphragms anyway.

It will only be braced in one axis by default. The beam that connects to it can't be composite.

No, it was just my mistake before. The Ram Steel Beam documentation confirms that column self-weight does not get applied on transfer girders. The reason behind it is complicated, but we want to avoid a cyclical design (beams, then columns, then back…

I’m pretty sure I checked myself before that last forum reply, but I checked again today using v17.00.00.93 and the column self-weight above is not applied to the gravity – steel transfer beam below, even if the column size is user assigned. A point load…

We consider the column self-weight in the column design. In the transfer beam design we also consider it, but only if the column has a user assigned size.

You will have to freeze the design (that's the same as user assigned).

Yes, you can do that in RAM Structural System. It looks like you already tried it, was there some problem?

If it's one-way deck, hen adding a beam certainly changed the tributary area, the loads to the beam, etc. Check into these tech notes: RAMSS Two Way Decks RAMSS Common Framing Table Errors Missing or incorrect loads on perimeter beams Failed…

Not exactly. Load from any portion of the slab that is recognized as the "slab overhang" is applied to the adjacent perimeter beam, regardless of deck orientation. It's only within the limits of the framing that the program uses deck orientation for tributary…

A chevron brace is one where the braces intersect at the beam mid-span. AISC 341-10 has special checks for these. Just search the document for "chevron" to find them quickly.