Article

UndergroundStructuralStructural Modifications to Hydroelectric Turbine Draft Tube Ceiling

Shaun M. Radomski, Dudley R. (Rusty) Morgan, Lihe (John) Zhang, and David Graham

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The U.S. Army Corps of Engineers (USACE) is engaged in structural modifications to the reinforced concrete draft tube exits from the turbines in the Ice Harbor Lock and Dam located on the Snake River near Burbank, WA.

Article

StructuralBond Strength of Reinforcing Bars with Varying Encapsulation Qualities

Pasquale Basso Trujillo, Marc Jolin, Bruno Massicotte, and Benoît Bissonnette

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The encapsulation quality of reinforcing bars represents a common concern among structural engineers when shotcrete structures are designed.

Article

RepairStructuralHudson River Park Repairs

Tait Pirkle and Marcus Jeffreys

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Hudson River Park (HRP) is a waterside park located along the Hudson River that is operated by Hudson River Park Trust.

Article

RepairStructuralConcrete Repairs of the Wright Memorial Bridge

Michael LaPrade

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The Wright Memorial Bridge has served as the gateway to the sunny beaches of the iconic Outer Banks of North Carolina for millions of vacationers since 1930.

Article

StructuralInternationalRecreational2018 Winter Olympics Sliding Track Mockup Test

Kyong-Ku Yun, Yong-Gon Kim, and Dudley R. (Rusty) Morgan

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On June 4, 2014, a mockup of the 2018 Winter Olympics sliding track was constructed by Daesang E&C Co. Ltd.,

Article

StructuralContractor Setup Considerations for New Construction

Ross King

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The use of structural shotcrete in lieu of ?form-andpour? is growing rapidly in the urban concrete building construction and civil infrastructure sectors throughout North America.

Article

UndergroundStructuralShotcrete Lining Innovations in the United States

Andy Thompson and Frank E. Townsend III

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Historically, the permanent concrete linings for underground structures have been installed using form-and-pour methods but the use of shotcrete or sprayed concrete for the structural linings is becoming increasingly more common.

Article

StructuralGeneralCan Supplemental Consolidation Extend the Limits of Shotcrete Placement

Oscar Duckworth

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In many major metropolitan regions of the United States, shotcrete methods are being used daily to place concrete within elements incorporating large, highly congested reinforcement layouts.

Article

UndergroundStructuralInternationalGeneralCellular Sprayed Concrete

Kyong-Ku Yun

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Cellular sprayed concrete is an innovative method of remixing ordinary portland cement (OPC) concrete into a high-performance concrete (HPC) by adding cellular material and silica fume or other powdered admixturesat a jobsite.

Article

RepairStructuralPier 57 Repair and Improvements

Tait Pirkle and Marcus Jeffreys

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Pier 57, now referred to as ?SuperPier,? is situated on the Hudson River and sits at the end of 5th Street on the West side of Manhattan, NY, just south of the renowned Chelsea Piers sports complex and marina.