Composite Analysis Model in SCIA Engineer

Principles

The Composite Analysis Model (CAM) has been kept as simple as possible. It uses standard modelling functionality of SCIA Engineer

Fundamentally, a composite deck with steel beams is modelled using a standard plate with plate ribs. Only a limited number of properties needs to be configured, in the plate and in the beam properties, to make those structural parts behave as composite and allow using the appropriate checks.

Using the standard menu items in SCIA Engineer, the composite system may be defined as a plate, with ribs added afterwards, or directly using a ribbed slab. Shortcuts are also available to create directly a composite deck or a metal deck.

See also the following sections:

• Project settings
• Definition of the deck
• Definition of the beams
• Construction stages for the composite analysis model
• Composite setup
• Automatic generation of combinations
• Nonlinear & Stability analysis of composite structures

About results...

Most standard results are available in a completely standard form when using the CAM (displacements, internal forces, support reactions...).

There are however some restrictions regarding the output of stresses as standard results.

• stresses in 1D members can be displayed only in the eccentric part (steel profile) of composite beams with advanced composite action and without composite action; output of stresses in beams with standard composite action is not supported at this time
• stresses in 2D members (composite decks and metal decks) are not supported because of their orthotropic behaviour, which would require some special processing that is not compatible with the standard 2D-stress output

Stresses can be, however, handled in detail in composite checks.

Example

Simple composite building modelized for IBC composite check: CAM_demo_IBC.esa