According to application notes by AISC, for Direct Analysis Method the UNREDUCED STIFFNESS shall be used for service checks. Now, due to limitations by Staad for DAM (for instance, not TENSION MEMBER available), I proceed to: 1. Reduce module of elasticity…

Why RAM connection changes material back to RSS when it is saved, closed and reopened.?

I'm wondering how STAAD handles the specification of both Poisson's ratio, nu, and the Shear Modulus, G, in defining a new material. I'm trying to model a machine vibration isolator to match the stiffness in the vertical and lateral directions. I have…

WHY THE RAM SHOW ME THAT?.. AND HOW I CAN FIX

I'm modeling a 3 stringer short span timber bridge in staad. The model consists of the three beams and deck planks (which are modeled as Plates). All geometry, material properties, supporting, and loading have been assigned. There is only one error in…

I'm modeling a 3 stringer short span timber bridge in staad. The model consists of the three beams and deck planks (which are modeled as Plates). All geometry, material properties, supporting, and loading have been assigned. There is only one error in…

I'm modeling a short span timber bridge in STAAD, and using plates to model the deck planks. How do I assign either timber or user defined material properties? Also, should I insert nodes at all places I want a deck plane and define a plate there? …

I am attempting to specify a material (concrete) with a specific strength in STAAD Pro V8i. My input is as follows: DEFINE MATERIAL START ISOTROPIC LONG E 3.2e+007 POISSON 0.17 DENSITY 24.5 ALPHA 1e-005 DAMP 0.05 G 1e+015 TYPE CONCRETE STRENGTH RY 1…