General wall properties
| General | |
|---|---|
| Name | The automatically generated name. |
| User Name | Can be used to override the automatically generated name if required. |
| Top Level | Specifies the top level for the wall. |
| Base Level | Specifies the bottom level for the wall. |
| Wall Type |
Meshed Shear Wall |
| Material type | General |
| Assume extra floors supported | Enter the number of extra floors supported. |
| AutomaticGenerate Support |
Cleared - a support will only be created if the Generate support property is selected. Checked - a support will only be created if no members/slabs capable of providing support exist under the wall. |
| Generate support |
Cleared - no support is created under the wall. Checked - a support is created under the wall. Note: When a support is created, a line support is formed under a
meshed wall, a point support under a mid-pier wall, and a series
of point supports under a bearing wall.
Note: When a support is created, its degrees of freedom are as
specified in the ‘Wall support’ area of the wall
properties.
|
| Plane | Indicates the grid along which the wall is placed. |
| All panels | |
|---|---|
| Grade | The grades that are available for General materials are set from the Materials button on the Home ribbon. |
| Thickness | The thickness of the wall. |
| Alignment |
Alignment of the wall:
|
| Alignment offset | When the alignment is set to User it can be adjusted by specifying an exact offset. |
| Assume cracked |
Assuming concrete sections are cracked has a direct affect on the analysis; smaller modification factors are applied to cracked sections causing an increase in deflection. Indirectly the design can also be affected because the sway/drift sensitivity calculations are also influenced by this assumption. |
| End 1 extension |
The amount the wall is extended or trimmed back from end 1. A positive extension extends the wall length beyond its insertion point. A negative extension trims the wall back from the insertion point. |
| End 2 extension |
The amount the wall is extended or trimmed back from end 2. A positive extension extends the wall length beyond its insertion point. A negative extension trims the wall back from the insertion point. |
| Releases | |
|
Minor Top Minor Bottom |
Fixed Pinned Continuous (incoming members pinned) |
| Analysis & design control | |
| Orthotropic | By default, the slab item is treated as having isotropic material properties. Selecting
this option allows assigning orthotropic material properties. For further details, see: Orthotropic walls |
| Calculate properties |
Only available when the Orthotropic option has been selected. Allows setting material properties in two in-plane directions automatically based on the stiffness modification X and Y factors below. For details of how the parameters are calculated, see: Orthotropic wall implementation |
|
X factor - along the length of the wall Y factor along the height of the wall |
Only available when the Calculate properties option has been selected. Applies stiffness modification factors in the local X and Y directions |
| Ex, Ey, Gxy, Gxz | Gyz, 𝜈x, and 𝜈y |
Allows manually setting material properties, such as Young’s moduli, shear moduli, and the Poisson’s ratio. The fields become editable when the Calculate properties option is cleared (except 𝜈y, which remains read-only). Note: No distinction is
made between Gxz and Gyz out-of-plane shear moduli.
|
| Apply modification factors |
By default, (unless the Orthotropic option has been selected), the modification factors specified in Analysis settings are applied. When this option is cleared the modification factors are not applied. See also: Use of modification factors |
| Sway and drift checks | |
| Sway/Seismic drift checks |
By default all stacks of all walls are taken into account in the calculation to determine the sway sensitivity of the building. The results of this calculation being accessed from the Review toolbar. This parameter provides a facility to exclude particular wall panels from these calculations to avoid spurious results associated with very small panel lengths. You can either clear the checkbox located under ‘All Panels’ to exclude the entire wall, or you can exclude a particular panel by clearing the checkbox located under that panel only. |
| Wind drift check, Wind drift ratio |
Wind drift is automatically checked against the specified limiting ratio, (which can be set differently for different columns). The results of this calculation are accessed from the Review toolbar. If you don’t want this check to be performed you can either clear the checkbox located under ‘All Panels’ to exclude the entire wall, or you can exclude a particular stack by clearing the checkbox located under that panel only. |
| Wall support | |
|---|---|
| Angles (Fx/Fy/Fz, Mx/My/Mz) |
Used to specify the translational and rotational degrees of freedom in which the support acts: • Fixed - indicates the support is fixed in the specified direction. • Free - indicates the support is free to move, or has a stiffness applied in the specified direction. |
| Translational stiffnesses (x/y/z) |
Used to specify the translational stiffness applied in a direction that is not fixed:
|
| Rotational stiffnesses (x/y/z) |
Used to specify the rotational stiffness applied in a direction that is not fixed:
|
| Panel 1, 2, 3 etc. | |
|---|---|
|
In a multi-panel wall properties can be entered for a specific panel, over-riding those defined at the All panels level. |
|
| Count the floor as being supported | |
|---|---|
|
Top level (Intermediate levels) Base level (Head Code Eurocode, BS or IS) |
If selected, the floor will be treated as supported when calculating the live/imposed load reductions. |
| Restrained | |
|---|---|
|
|
Used to indicate at which levels the wall is restrained. Note: Only levels with a connecting member are listed.
|
| Meshing | |
|---|---|
| Override Model’s | Select this checkbox to override the default wall mesh size that is specified in the Structure properties. |
| Wall Mesh Horizontal Size | Used to override the default wall horizontal mesh size (1.000m). |
| Wall Mesh Vertical Size | Used to override the default wall vertical mesh size (1.000m). |
| Wall Mesh Type |
Available mesh types:
|
| UDA | |
|---|---|
|
Name Finish Class Phase Note File |
A customizable list of the attributes that can be applied to individual members and panels. |