# Steel Bent Cap Camber Diagram \[CUG]

The Steel Bent Cap Camber Diagram workflow item produces a tabular and graphical camber report for a selected steel bent cap (straddle/integral cap) girder. Using the results of previously completed analysis runs, it reports span-by-span vertical displacements for girder, deck, superimposed dead load, and up to five additional user-defined cases, optionally normalized to zero at the supports along the cap.

## General

**Steel Bent Cap:** Pick the Steel I Girder Bent Cap for which the camber diagram is generated.

**Support-Normalized Displacement \[Enabled/Disabled]:** When Enabled (default), displacements are adjusted by linear interpolation so that the reported value is zero at each support along the bent cap; the intermediate station values are shifted accordingly. When Disabled, the analysis displacements are reported directly, including at the supports.

**PDF Name (Export):** Text used as the file name when the diagram is exported to PDF. Special characters listed on the [illegal characters](https://docs.openbrim.org/faq/general/faq-illegal-chars) page should be avoided, since they may break parametric expressions or file export.

## Deflection Result Cases

All three base result cases — Girder Dead Load, Deck Dead Load, and Superimposed Dead Load — are required for the report to compute. Leaving any of them unassigned prevents the diagram from generating.

**Girder Dead Load:** Result-extraction case in which the girder and cross frame self-weight is applied; used to compute the girder-only component of camber.

**Deck Dead Load:** Result-extraction case representing the deck self-weight; used to compute the deck component of camber.

**Superimposed Dead Load:** Result-extraction case representing superimposed dead load (barriers, sidewalks, utilities, signage, future wearing surface, etc.).

**Segment Distribution \[Uniform/Nonuniform]:** Controls how each span of the bent cap is split into reporting stations. In **Uniform** mode all spans are split into the same number of equal segments (see *Number of Segments per Span*). In **Nonuniform** mode the exact segment count per span is taken from the *Segment List*.

**Number of Segments per Span:** Number of equal segments each bent-cap span is divided into for the camber table when Segment Distribution is set to Uniform. A value of 10 produces 11 stations per span. Only visible when `Segment Distribution` equals Uniform.

**Segment List:** Per-span list of segment counts used when Segment Distribution is set to Nonuniform. Each entry sets the segment count for the corresponding span. Only visible when `Segment Distribution` equals Nonuniform.

**Additional Points (From Right End):** Extra reporting stations expressed as distances measured from the right end of the bent cap. Each value inserts an additional row in the camber table at that location, in the span it falls within.

**Ignored Insertion Points for Span Positioning:** Insertion Points along the bent cap that should not be treated as spans when building the report — typically temporary supports or non-bearing insertion points that would otherwise artificially split a span.

## Additional Result Cases

Use these rows to add up to five additional result cases whose displacements will be tabulated alongside the default dead-load cases. The description text becomes the column header in the output table. A case is only included when its Description is set — the corresponding Result Case input is only enabled in that case.

**Result Case 1 Description:** Free-text column header for the first additional case.

**Result Case 1:** Analysis case whose displacement is reported under the first additional column. Only enabled when *Result Case 1 Description* is provided.

**Result Case 2 Description:** Free-text column header for the second additional case.

**Result Case 2:** Analysis case whose displacement is reported under the second additional column. Only enabled when *Result Case 2 Description* is provided.

**Result Case 3 Description:** Free-text column header for the third additional case.

**Result Case 3:** Analysis case whose displacement is reported under the third additional column. Only enabled when *Result Case 3 Description* is provided.

**Result Case 4 Description:** Free-text column header for the fourth additional case.

**Result Case 4:** Analysis case whose displacement is reported under the fourth additional column. Only enabled when *Result Case 4 Description* is provided.

**Result Case 5 Description:** Free-text column header for the fifth additional case.

**Result Case 5:** Analysis case whose displacement is reported under the fifth additional column. Only enabled when *Result Case 5 Description* is provided.

## Details

**Camber Diagram Factor:** Scale factor applied to camber values in the graphical representation so that small displacements are readable on the diagram (default 100). The tabulated values are not affected.

**Number of Decimal Points:** Number of decimals used for displacement and station values in the output table (default 3).

**Display Arrow on the Graphic \[Yes/No]:** When set to Yes, each plotted camber point is labeled with its numeric value and an arrow on the graphic. When set to No, the labels and arrows are hidden and only the curve is shown.


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