Figure 67-5G - Seat Elevations for Steel-Beam or Plate-Girder Example

Aug 27, 2026

The document provides a worked example for calculating and verifying seat elevations for steel beams or plate girders. It presents a table of beam-related elevation inputs and adjusted elevation outputs across four beam numbers, including profile-grade elevation, deck reference elevations, control dimensions, beam web and flange plate thicknesses, shim dimensions, bearing thickness, and the resulting calculated seat elevation. The note explains that the listed profile-grade elevations are adjusted to reflect bridge skew and the vertical alignment of the profile-grade line, concluding with adjusted seat elevation values.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages1

Reading Time3 min

AccessFree to download

Seat Elevations Calculation Example

Elevation Inputs by Beam Number

Adjusted Seat Elevation Results

Note on Profile-Grade Elevation Adjustment

FAQs

What is the purpose of the example in Figure 67-5G?

It demonstrates how to calculate seat elevations for steel-beam or plate-girder installations and how to verify the adjusted results.

How are the profile-grade elevation values adjusted in the table?

They are adjusted to account for bridge skew and the vertical alignment of the profile-grade line, as stated in the note.

Which values are used to compute the calculated seat elevation?

The example uses deck reference elevations, control dimensions, beam web and flange plate dimensions, shim and bearing thickness values, and related adjustments to produce the calculated seat elevations.

Aug 27, 2026

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