Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel Application of Post-Tensioning Solves High-Rise Design Challenges
Post-tensioning is used to reduce deflection, control cracking, and add strength in a wide range of concrete construction projects, including both new construction and retrofit of existing structures. The two principal characteristics of post-tensioning are the precompression that is applied to the concrete and the uplift that is generated to offset gravity loads. A third characteristic of post-tensioning is the generation of hyperstatic (secondary) forces in statically indeterminate structures. Hyperstatic forces were recently used to resolve a major challenge facing the structural design of 55 Hudson Yards, a high-rise in New York City, NY, that will be partially constructed over and supported by an existing structure. The design scheme required the columns of the existing structure to provide partial support for the new construction. This article presents the highlights of the design challenge and details how the hyperstatic actions associated with post-tensioning were used to achieve the design objective.
Novel Application of Post-Tensioning Solves High-Rise Design Challenges
Post-tensioning is used to reduce deflection, control cracking, and add strength in a wide range of concrete construction projects, including both new construction and retrofit of existing structures. The two principal characteristics of post-tensioning are the precompression that is applied to the concrete and the uplift that is generated to offset gravity loads. A third characteristic of post-tensioning is the generation of hyperstatic (secondary) forces in statically indeterminate structures. Hyperstatic forces were recently used to resolve a major challenge facing the structural design of 55 Hudson Yards, a high-rise in New York City, NY, that will be partially constructed over and supported by an existing structure. The design scheme required the columns of the existing structure to provide partial support for the new construction. This article presents the highlights of the design challenge and details how the hyperstatic actions associated with post-tensioning were used to achieve the design objective.
Novel Application of Post-Tensioning Solves High-Rise Design Challenges
Bijan O Aalami (Autor:in) / Florian B Aalami / Jeffrey Smilow / Ahmad Rahimian
2016
Aufsatz (Zeitschrift)
Englisch
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