Bridge Geometry

This section defines the geometric layout of the Steel Tub Girder Bridge including alignment, supports, and girder positions.

Navigation: Bridge Geometry

Overview

Bridge geometry establishes the spatial framework for the entire model:

• Roadway Alignment: Horizontal, vertical, and transverse geometry
• Bridge Alignment: Associates alignment with the bridge
• Support Lines: Defines abutment and pier locations
• Insertion Points: Positions for girder placement
• Girder Layout: Connects insertion points to define girder paths

Sections

Section	Description
Roadway Alignment	Define horizontal curves, grades, and cross-sections
Bridge Alignment	Assign alignment to bridge
Support Lines	Define abutment and pier stations
Insertion Point	Position girders on support lines
Girder Layout	Connect insertion points for girder paths

Complete Bridge Geometry before defining Properties and Superstructure components.