> 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/cable-stayed-bridge-workflow/superstructure-csb/deck-csb/cross-section-csb.md).

# Cross-Section \[CSB]

**PGL to Left Edge:** The distance between PGL and the left edge.

**PGL to Right Edge:** The distance between PGL and the right edge.

**Mid Thickness:** The mid thickness of the concrete deck, excluding the overhang part, is utilized as the thickness of the deck shell elements in finite element analysis.

**Left Overhang Thickness:** The maximum thickness of the left overhang, and it influences the thickness of the deck shell element in the overhang region. The taper parameter will be included in the deck component data. Furthermore, if the deck is constructed using automatic haunch load computation, any additional load will be added or removed based on the thickness and taper parameter of the deck overhang.

**Right Overhang Thickness:** The maximum thickness of the right overhang, and it influences the thickness of the deck shell element in the overhang region. The taper parameter will be included in the deck component data. Furthermore, if the deck is constructed using automatic haunch load computation, any additional load will be added or removed based on the thickness and taper parameter of the deck overhang.

**Use Custom Alignments for Deck Edges \[NO/YES]:** When set to YES, the left and right edges of the deck follow user-supplied alignments instead of offsets measured from the PGL. Use this when the deck edges do not run parallel to the PGL (e.g., widening flares, ramp connections).

**Alignment (Left Edge of Deck):** Alignment the left edge of the deck follows when Use Custom Alignments for Deck Edges is YES.

**Alignment (Right Edge of Deck):** Alignment the right edge of the deck follows when Use Custom Alignments for Deck Edges is YES.

![](https://openbrim.atlassian.net/wiki/download/attachments/2124775451/image-20230313-112049.png?api=v2)


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