Cambered replacement girders
The 6.2-ton emergency repair package included beam girders modeled against the existing bridge geometry.
LocationSaint Paul, Minnesota
Client and fabricatorZimmerman Metals
Structural repair steelApproximately 6.2 tons
Modeling and detailing effortApproximately 160 hours
Project overview
Structural steel repairs for a pedestrian bridge over TH 52.
The project involved emergency repairs to MnDOT Pedestrian Bridge No. 62023 over Trunk Highway 52 in the Cesar Chavez Street and Concord Street area of Saint Paul, Minnesota.
The scope included the replacement and repair of critical structural steel components.
Working for Zimmerman Metals, our team modeled and detailed approximately 6.2 tons of repair steel using Tekla Structures.
Project team and technical details
- Specific location
- Over TH 52 near Cesar Chavez Street and Concord Street
- Owner
- Minnesota Department of Transportation
- Project type
- Emergency pedestrian bridge repair
- Primary scope
- Structural repair steel modeling and detailing
- Key components
- Cambered girders, diaphragms, bracing, field splices, sole plates and shear studs
- Detailing platform
- Tekla Structures
Detailing scope
Critical components modeled for fabrication and field installation.
Diaphragms and lateral bracing
Secondary components were located relative to the cambered girders and coordinated repair structure.
Field splice connections
Splices were detailed for field assembly as part of the replacement and repair scope.
Sole plates and welded shear studs
Bearing-related plate positions and welded stud locations were represented precisely in the fabrication information.
Complete repair documentation
A Tekla model and fabrication drawings were developed for Zimmerman Metals in approximately 160 detailing hours.
Technical complexity
Matching new repair steel to established bridge geometry.
Repair steel meeting existing geometry
New components had to align with established bridge elevations and girder camber rather than an entirely new structural layout.
Precise component positioning
Diaphragms, bracing, sole plates and shear studs required accurate placement relative to the cambered girders.
Shop and field conditions together
Fabricated components and field-assembled splice connections had to be communicated clearly within one coordinated emergency repair package.
Our approach
One coordinated repair model developed in approximately 160 hours.
The entire repair structure was modeled in Tekla Structures.
The model provided a consistent basis for:
- defining the replacement components,
- coordinating bridge elevations,
- representing girder camber,
- developing connection details,
- producing fabrication drawings,
- preparing information for field assembly.
Our team dedicated approximately 160 hours to the modeling and detailing scope.
Project result
A complete detailing package for emergency structural repairs.
The completed scope included a coordinated Tekla model and fabrication documentation for approximately 6.2 tons of replacement and repair steel.
Despite its relatively low tonnage, the project required detailed attention to the interfaces between new components and the existing pedestrian bridge.