Boundary Conditions
Header | Description |
---|---|
Column Type | Can set if the column is a uniaxial or biaxial column |
Top Connection | Sets the top of the column to be a free end condition (none), pinned against lateral translation, fixed against translation and rotation, or partially fixed with a spring stiffness. |
Bottom Connection | Sets the bottom of the column to be a free end condition (none), pinned against lateral translation, fixed against translation and rotation, or partially fixed with a spring stiffness. |
Restraint(s)
All restraints above the bottom most restraint are assumed be unrestrained in the vertical (Y) direction.
Header | Description |
---|---|
Add Restraint | The user may select between pinned, fixed, vertical roller, or nothing for the bottom most node. Typically the bottom connection for a precast panel is modeled as a pin (fixed against translation but not rotation). |
Remove Restraint | While you could add a floor tie in the restraint table, using this option flags this restraint as the ‘floor restraint’. This exposes additional options for when the floor tie is cast. |
Copy Restraint | Incremented number assigned to the restraint for identification in the model. |
Elevation | Height or vertical position of the restraint. |
Front/Back | Sets the restraint to function in the y direction. |
Left/Right | Sets the restraint to function in the x direction. |
Type | Can set the restraint to be a pin or a spring with a user defined spring stiffness. |
Delta x/y | Defines the deflection at the restraint, if pinned. Can be used to model story drift. |
Releases
Can add moment releases at this section. These are often used to model joints between two panels.
Header | Description |
---|---|
ID | Incremented number assigned to the release for identification in the model. |
Elevation | Height or vertical position of the release. |
Loading
Header | Description |
---|---|
Live Load Scale Factor | An additional multiplier to be applied to all live load. Can be used to model live load reduction from ASCE 7. |
Load locations input as… | offset from face / centerline: Loads will be input relative to a selected face on the member. Offsets from the face’s centerline may also be input. Eccentricity will be computed based on the given offsets. eccentricity: Eccentricity in the x and y direction will be input directly by the user. |
Vertical Loads
Lateral Loads
Point Moments
Wind Loads
Additional Weight
Input | Description |
---|---|
Start from Bottom | The start location of the load measured from the bottom of the column. |
End from Top | The end location of the load measured from the top of the column. |
Magnitude | The magnitude of the additional self weight. |
Seismic Load
Percent of dead load to be added as lateral seismic load
A percentage of the dead load (per unit length) to be applied laterally as a seismic load. For uni-axial members seismic loads are applied in the ±Y direction. For bi-axial members seismic loads are applied in both the ±Y and ±X directions.
Analysis Section
The user can select between the Entire section and a sub-section to be used in the analysis. The entire section is the one defined on the Concrete Extents tab. The sub-section must be defined here.
Bounds
Input | Description |
---|---|
from Left | Distance from the left face of the typical section to the boundary of the input sub-section. |
from Front | Distance from the front face of the typical section to the boundary of the input sub-section. |
front Right | Distance from the right face of the typical section to the boundary of the input sub-section. |
front Back | Distance from the back face of the typical section to the boundary of the input sub-section. |
Options
Input | Description |
---|---|
for self weight | If this option is selected, the geometry of the sub-section will be used for the in-place analysis, and the self-weight of the entire section will be applied. |
for loading centroid and faces | If this option is selected, the loading eccentricities will be measured from the centroid of the entire section, rather than the centroid of the sub-section. |
until first opening | Will ignore sub section inputs from the bottom of the column to the bottom of the first opening. |