• One-Way Shear Errors at Two-Way Slab Depressions in RAM Concept

    Hello! I am currently working on a two-way slab with a set of slab depressions at the top face. The tendon layout is as follows, with red being banded tendons and orange being distributed tendons: And a section showing the distributed tendon direction…
  • RAM Concept - Bar closely spaced warnings

    Greetings, We are designing a 4 story residential building with a 2nd floor, two-way transfer slab 24" thick. For a slab that thick the concrete is sufficient to take high shear loads, but when running the program there is a very large amount of shear…
  • RAM Foundation to RAM concept for combine footing

    Hello All, I am currently looking into designing a foundation of the shear wall which is at the basement level and at the end of the wall there are two gravity columns. My intention at the end is to pick those gravity columns in the foundation of…
  • Small perimeter reinforcement - "What is it good for?" asks Edwin Starr

    I'm modeling a very simple 10" roof slab with some long-ish cantilevers (22" from edge of slab to face of wall). For some reason, the Concept module of my RSS model insists on putting 6" or 12" anchored rebar around most of the slab's perimeter, top…
  • RAM Concept Rebar out of section

    Hi, I'm working on a mild reinforced slab and it seems to be working fine, however im getting a warning that says some of my rebar is out of seciton. I already checked and the user defined rebar is within the trimmed section, i looked at the Cross Sections…
  • RC Two-way Slab Long-term Deflection

    Hi all, I'm studying a two-way RC flat slab for a parking garage. 10" thick, 6000psi concrete, 10psf SDL and 40psf LL. The 5000-day deflection is 3" under 1.0SW+1.0SDL+0.25LL for a 30'X27' interior bay. With the same geometry and concrete strength…
  • Column and Wall Rigid Zone

    Hi, I am reading a post about modeling in RAM Concept. One of the questions mentioned rigid zones at columns and walls. See the snapshot below: My question is what stiffness factors one should use for these rigid zones: Thank you.
  • PT Beam Shear Capacity

    Hi there, I'm designing a one-way slab supported by PT beams. When I audited the cross section that fails in shear, I noticed something strange about the shear demand and capacity. Why is one section failing in shear but not the other? Shouldn…
  • RAM Concept Fixed Columns

    Hi there, In RAM concept if you click the column as fixed-fixed, what percentage of the moment does the column take out of the slab? We generally design our columns as pinned-pinned. I'm assuming if we do this, we shouldn't use the column to take…
  • RAM Concept V8i Slab edge thickening and slab thickness.

    I am currently designing a 40mx20m ground bearing slab/raft foundation and would like to know if it is possible to model thickening at the edges as the slab will be supporting line loads due to masonry and point loads due to the steel superstructure at…
  • PT through Slab Step and Upturned Beam

    Ram Concept community, I have a question regarding the correct modeling practices for a PT two-way slab with a significant step. In my particular case, my slab step is occurring at mid-span perpendicular to my bundled tendons, and I have upturned…
  • RAM Concept Stress Spike

    Hello All, I am modeling a PT Garage with beams in each direction and I am noticing that there are unique spikes in the bottom stresses in the center span. These do not occur in the beams in the other direction and I was wondering if there was any…