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États-Unis

Queensboro Bridge

Project description

The Queensboro Bridge, officially named the Ed Koch Queensboro Bridge, is a signature cantilever bridge situated over the East River in New York City, that was completed in 1909.

It connects Long Island City in the borough of Queens with Upper East Side Manhattan, passing over Roosevelt Island.

The replacement of 200,000 ft2 (18,580 m2) of roadway deck, which underwent years of overloading, entailed significant challenges, including the selection of a lightweight but durable replacement that will extend the service life of the structure.

mageba scope

mageba was selected to supply a total of 12 TENSA®MODULAR expansion joints, in the LR3, LR6 and LR8 models.

These products allow for a maximum of 9”, 18” and 24” (228, 457 and 609 mm) of longitudinal movements respectively, as per the project requisites.

PP-1 and PP-123 Orthotropic Deck Plate Connection Hardware was also provided for the work on the upper roadways of the bridge.

All fabrication was carried out at mageba’s AISC-certified production plant in the USA.

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Modular expansion joint type LR3 (three gaps) from above

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Bottom view render of the mageba LR3 modular expansion joint with deck panels

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Transverse restrainer elastomeric bearings with PTFE sliding interface

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Completed & hot dip galvanized steel restrainer assemblies ready for shipping

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Render of a modular expansion joint type LR8 (8 gaps) with deck panels

En bref

Products:

TENSA®MODULAR LR3, LR6 and LR8 modular joints

Installed:

2019

City:

New York City

Structure:

Cantilever bridge

Main span:

1,182 ft (360 m)

Owner:

City of New York Department of Transportation Division Bridges

Contractor:

American Bridge

Features:

PP-1 and PP-123 Orthotropic Deck Plates Connection Hardware

Length:

3,724 ft (1,135 m)