RAM Concept Help

Wall properties

Wall properties are similar to column properties though instead of width, depth and angle there is thickness. The fixity settings are somewhat different, and there is no Bending Stiffness Factor.

General

The following is a list of RAM Concept general wall properties:

SettingDescription
Name User-defined label used to identify the wall in output. This label is automatically transferred to meshed wall elements during mesh generation.
Concrete Mix Type of concrete used (defined in Materials Specification).
Height Vertical distance from centroid of slab element to far end of wall.
Support Set Defines the wall as below or above the floor.
Thickness
Shear wall "Locks" the wall to the slab horizontally and thus restrains it; otherwise, the slab can "slide" over the wall.
Fixed Near Provides a moment connection between wall and slab about the wall’s r-axis; otherwise pinned.
Fixed Far Provides a moment connection about the wall’s r-axis at far end; otherwise pinned.
Compressible Allows for the wall to elongate in the z-direction according to Hooke’s law; otherwise incompressible. Compressible walls usually produce results that are more accurate.

Meshing

The following is a list of RAM Concept meshing wall properties:

SettingDescription
Mesh Slab Support Region When checked meshed elements are generated within and bounded by the wall shape.
Slab Support Region Stiffness Factor The entered multiplier is used to factor the flexural stiffness terms (KMr, KMs, and KMrs) for the meshed slab elements that are generated in the support region. The default value is 10, which will result in a nearly rigid zone over the wall. Consideration of such a stiffened zone may be important for accurate deflection prediction.