Sliding Support

These supports restrict downward movement but disengage during upward displacement. Horizontal sliding generates friction forces opposing the direction of movement.

PASS/START-PROF models resting supports with one vertical single-directional linear restraint and two horizontal frictional restraints. For inclined sliding surfaces, use custom restraints. See "Custom Restraint Links"

For buried resting supports with downward subsidence, soil effects within 14 pipe diameters are disabled when pipe separates from support.

Properties

Property	Description
Name	Element identifier. When checked, displays in 3D view.
Weight	Weight of support components attached to pipe. Applied at attachment node. When building structure allowable loads are specified, calculated load includes piping plus support weight. When support allowable loads are specified, either omit support weight or increase allowable load by support weight value.
Friction factor	Friction factor
Check allowable loads	PASS/START-PROF automatically checks allowable load values against analysis results. Warnings display when values are exceeded.
Loads in local axes	When unchecked, allowable loads reference global coordinate system; when checked, they reference local axes of adjacent element.
FX, FY, FZ	Allowable load values for X, Y, and Z axes.

Menu and Toolbar Access

To insert resting support, select node and use: Insert > Insert Restraint > Resting Support