RAM Concept - Load History Deflections Not Converging
Hi,
I have two RAM Concept suspended slab models which will not converge when running the load history deflections and I am at a loss as too why. Below is the warning provided in the Load History Calc Log:
WARNING: An error has been found while…
RE: Creep coefficient Eurocode
The creep model used in Ram Concept for Load History deflections is based on ACI 209R-92. Refer to the program manual section 67.3.2 for some general information.
For further reading see this wiki post:
RAM Concept Load History Calc Options TN …
RE: RAM ECR parameters
A colleague who is more familiar with the AS 3600 code offered this help.
AS 3600 breaks down total shrinkage into autogenous shrinkage and drying shrinkage, whereas Concept only has a single value for shrinkage that represents the combination. I think…
RE: Long Term Deflections for ACI318 in RAM Concept
The L.T. Deflection Plan is no longer a standard plan, since load history deflections are the recommended method for long term deflections. However, you can create a new plan and plot the strip-based L.T. Deflections as follows:
1. Click on the Layers…
RE: Load History Deflections in Concept to British or EU standards
I'm sure lots of engineers have used Concept for this purpose.
I assume you are using Load History analysis.
Alt Envelope factors are not used in Load History analysis, only the standard load (and pattern is used). The program manual, section 67.1…
RAM Concept Load History Deflections
We are currently working on a RC garage model (11” slab thickness, max span ≈34’). We are noticing that our load history deflections are much larger than we are expecting.
When we run load history deflections we get a Final Instantaneous Deflection…