> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/templates/precast-i-girder-bridge-workflow/construction-pig/superstructure-construction-pig/approach-slab-construction-pig.md).

# Approach Slab Construction \[PIG]

## General

**Stage:** Choose a stage at which the approach slab loads will be applied to the structure.

**Approach Slab Elements:** Select the modeled approach slab elements (minimum 1, maximum 100 elements). Each selected element is staged through its own finite element group, so staging one approach slab does not affect the others.

**Self Weight Factor:** Controls the scaling of self-weight during finite element analysis (default: 1.0).

**Stiffness \[NO=0/YES=1]:** Controls whether structural stiffness is included in the analysis (default: YES=1).


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