Jacking Existing Roof at 1401 Okie Street

Williams Steel Erection Co., Inc. is jacking the existing roof structure of 1401 Okie Street in order to preserve the existing truss system as a historical architecturally exposed element.  A fully engineered plan was developed specifically for this operation.  The 150 ft by 75 ft section being jacked was reinforced to accommodate the loading imposed during the operation.  Custom made support frames were designed and fabricated to transfer the load of the jacks and roof to the ground through the existing building structure.  Below are pictures from the setup prior to jacking and after.

Dulles Metrorail – Phase 2 Progress

Williams Steel Erection Co., Inc. is performing the structural steel erection on Phase 2 of the Dulles Metrorail (Silver Line) project.  Steel Erection started this summer and the first station is nearing completion.

Dulles Metrorail - Innovation Station

Dulles Metrorail - Innovation Station

 

Work has also started on the assembly of the pedestrian bridges that will carry passengers from the wayside areas to the stations.  The bridges will be assembled on the ground in sections that weigh up to 200,000 lbs, then hauled to their final location using our heavy haul rig and set in final position with one of Williams Construction Services’ fleet of cranes with up to 300-Ton capacity.  Check back for future updates as the project goes forward.

 

Dulles Metrorail - Innovation Span 5

 

Large Transformer Move

Williams Steel Erection Co., Inc. – Rigging Division recently moved a 710 Ton transformer in Rising Sun, MD for SPX Corporation.  The move utilized the company’s Goldhofer heavy duty modular combination trailer in a double wide configuration as well as our Oshkosh M-911 (Prime Mover).  Take a look at the pictures below.

 

New Goldhofer Trailer for Giant Moves

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Williams Steel Erection Co., Inc. is please to announce the arrival of its new equipment, including an Oshkosh M-911 (Prime Mover) and a Goldhofer heavy duty modular combination trailer.  With this equipment, our experienced, award-winning personnel can move the heaviest of transformers or largest of loads.  For additional information, contact 703-335-7850 or by e-mail at rigging@wmsi.com

 

New_Goldhofer_Trailer

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