Identify cracked elements in RAM Concept

Landon Harman — Thu, 22 May 2014 17:25:17 GMT

Is there a way to identify/see/plot which elements in a flat RC slab are cracked at the end of RAM Concept's analysis?

I'd like to be able to compare the deflection results that RAM Concept calculates with those produced by a consultant in a generic FEA program, but I need to get an understanding of whether we're using the same baseline assumptions. In the generic program, the slab must be "softened" using a cracked section factor which assumes a certain percentage of the slab has cracked and results in an effective moment of inertia. Since RAM adjusts the stiffness of each element depending on whether or not it cracks, I'd like to have RAM output WHICH elements are cracked and which are using gross section properties.

Is there a table or plot that can show this?

Modelling eccentricity of columns with cantilever beams in RAM SS

Landon Harman — Thu, 17 Jul 2014 23:04:58 GMT

We have a situation where an existing building utilizes platform-framed construction and several columns have beams with 10'-0" cantilevers which run over top of them. We do not feel it's conservative to assume a perfect fulcrum (i.e. zero eccentricity) if only due to erection tolerances. Is there some workaround we can use to induce eccentricity in these columns?

Using the manual override doesn't work as RAM SS still assumes zero eccentricity (and hence zero bending moment) and using a stub cantilever beam (as opposed to a cantilever extension) induces ALL of the moment in the column. We'd like Ram to recognize the user input eccentricity, is there any way to make that happen?

Thanks!

Landon

Landon Harman's Activities

Identify cracked elements in RAM Concept

Modelling eccentricity of columns with cantilever beams in RAM SS