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Supports

Supports define the boundary conditions of your structure. XFrame2d provides several predefined support types and allows you to create custom supports.

Predefined Supports

Icon Type Description
Pinned Pinned Fixed in x and z, free rotation
X-roller X-roller Fixed in z, free in x and rotation
Z-roller Z-roller Fixed in x, free in z and rotation
Fixed Fixed Fixed in x, z, and rotation

Spring Supports

Icon Type Description
Z-spring Z-spring Translation spring in z-direction
X-spring X-spring Translation spring in x-direction
R-spring R-spring Rotation spring around y-axis

Custom Supports

You can compose any support by combining:

  • Fixed or free in x-direction
  • Fixed or free in z-direction
  • Fixed or free in rotation
  • Spring stiffness in any direction

Special Supports

XFrame2d also supports:

  • One-way supports - Only active in one direction (e.g., compression only)
  • Local coordinate system - Support directions aligned to any angle

See Local Coordinate System for supports on inclined planes.