Edge Beam Mesh Designation 2-Way Slab
For edge beams on a 2-way slab, just along the N/S faces, would the "Standard" designation that's imported from RAM SS be the correct "Behavior" of the member (in the Mesh layer) or would "No-Torsion" be a better option? I understand that it's suggested…
RAM Concept - Beam Properties kMrs torsional stiffness factor
Hi there,
Just wondering if anyone was able to provide any insight to the kMrs stiffness factor for Beam elements, and whether the "Mesh as slab" function will affect how this value is determined?
From the RAM Help Guide, understand that it is recommended…
Can a torsion call up in an edge beam, be caused by a bending moment in a perpendicular transverse beam?
Hi,
I am currently designing a PT corbel beam that caps the end of a series of transverse beams along a movement joint. There are columns positioned at the intersections of the transverse and corbel beams. I have applied my corbel loads from the adjacent…
How does Concept design for torsion?
I am designing a PT slab step which has some significant torsion in it, and I am having trouble understanding RAM Concept's design approach for that torsion.
In "As Shear" and "As Bending" the torsion is either being converted to the bending (Mr) or…
RE: RAM Concept - Flat Plate Torsional Stiffness Reduction
1) For some details about the element stiffness reduction, see program manual section 67.4 Element stiffness adjustments and Accurate Long-Term Deflection Prediction in Flat Slabs Using Linear Elastic Global Analysis , section 3. The stiffness factors…
RE: Torsional Moments in One-way Slab in RAM Concept
The information on the following web page may answer your question:
http://communities.bentley.com/products/structural/structural_analysis___design/w/structural_analysis_and_design__wiki/26611.ram-concept-torsion-design-tn
If questions remain, please…
RE: RAM Concept - Beam Torsion
"As Shear" is appropriate for situations where the torsion is primarily caused by vertical shear eccentric from the "shear core" of the cross section (for a typical cross section with a beam, the "shear core" is the beam cross section). "As Shear" will…
RAM Concept - Beam Torsion
We are investigating some post-tensioned beams that are failing the torsion checks (due to ACI 318-11 Eqn 11-18). Under the torsion design options, there is 'Beam', 'As Shear', 'As Bending', and 'Wood Armer'.
In the manual, you are clear on not using…
RAM Concept Shear + Torsion and Tabular Input
Hello again.
I was adding some user shear reinforcement to a model recently (hurray for this being a feature now), and had some things happened that piqued my interest. I started digging around in the audit report to better understand how Concept is…
RAM Concept - Torsion in Beam Members
Hello.
I have a 2-way flat slab with a banded/uniform PT layout. Around my elevator and stair openings, we have beams framing the openings. My question is in regards to failures resulting from higher than expected values of torsion in these beams …