Specifies the restraint type. You can select a restraint from the list in the Restraints auxiliary panel in Piping Input. For more information, see the Restraints section of the CAESAR II Applications Guide.
Restraint Type |
Description |
Example |
---|---|---|
ANC |
Anchor Modifiers:
|
The anchor is at the center of the pipe for a rigid stanchion. Otherwise, the anchor is at the base of the stanchion. |
X, Y, or Z |
Translational Double Acting Modifiers:
|
X support |
+X, -X, +Y, -Y, +Z, -Z |
Translational Directional Modifiers:
The plus or minus sign (+/-) on the restraint specifies the direction of free movement. |
+Y support with slide plates Allows movement in the positive Y direction and restrains movement in the negative Y direction. |
RX, RY, or RZ |
Rotational Double Acting Modifiers:
|
1) RZ, X, and Y 2) RX, RY, X, and Y. Hinged-end rod free to rotate about the Z-axis. Restrains all except RZ. |
+RX, -RX, +RY, -RY, +RZ, -RZ |
Rotational Directional Modifiers:
The plus or minus sign (+/-) on the restraint specifies the direction of free movement. |
+RZ, X, and Y |
GUIDE |
Guide, Double Acting Modifiers:
GUIDE only restricts the pipe’s lateral movement in the horizontal plane and does not contain a vertical component or a pipe axial component. |
Guide (or X) and Y This can also be X instead of GUIDE. |
LIM |
Double Acting Limit Stop Modifiers:
A limit stop is axial to the pipe but may not align with a global axis when elements are non-orthogonal. |
LIM with gap (or X with gap) and +Y Gap between support and each limit stop For more information, see Gap. This can also be X with gap instead of LIM with gap. |
+LIM, -LIM |
Directional Limit Stop Modifiers:
A limit stop is axial to the pipe but may not align with a global axis when elements are non-orthogonal. |
+LIM with gap in the direction of the From node to the To node Gap between support and the limit stop For more information, see Gap. This can also be +X with gap instead of +LIM with gap. |
XROD, YROD, ZROD
|
Large Rotation Rod Modifiers:
All rods are directional. If there is no sign it is assumed to be positive. |
YROD or +YROD This can also be +YROD instead of YROD. |
-XROD, -YROD, -ZROD |
Large Directional Rotation Rod Modifiers:
|
-YROD |
X2, Y2, Z2 |
Translational Double Acting Bilinear Modifiers:
|
X2 soil stiffness with a load limit |
+X2, -X2, +Y2, -Y2, +Z2, -Z2 |
Translational Directional Bilinear Modifiers:
|
The directional restraint allows movement in the specified direction. |
RX2, RY2, RZ2 |
Rotational Double Acting Bilinear Modifiers:
|
RX2, RY2 |
+RX2, -RX2, +RY2, -RY2, +RZ2, -RZ2 |
Rotational Directional Bilinear Modifiers:
|
The directional restraint allows rotation in the specified direction about the specified axis. |
XSPR, YSPR, ZSPR |
Bottom Out Spring Modifiers:
|
YSPR |
XSNB, YSNB, ZSNB |
Translational Double Acting Snubber Modifier:
|
YSNB |
+XSNB, -XSNB, +YSNB, -YSNB, +ZSNB, -ZSNB |
Directional Snubber |
The directional restraint allows movement in the specified direction. |