Interaction of Steel Structure and Composite Supercolumns in Spine Structures
by P. V. Banavalkar, CBM Engineers, Inc, Houston, United States,Document Type: Proceeding Paper
Part of: Composite Construction in Steel and Concrete II
Abstract:
Modern architecture has departed from uniform rectangular cigarette boxes for high-rise buildings. A structural system which goes uninterrupted through the common denominator of the varying floor plans of a tower thus eliminating expensive structural transfers and discontinuities in the lateral load resisting system is termed a 'spine' structure. The cost effectiveness of this system is further enhanced by anchoring its extremities to high-strength composite columns. This sets up an interaction between the composite concrete column and the structural steel members. This paper describes the influence on this interaction of: concrete properties such as creep and shrinkage; temperature loads imposed on the concrete column due to its exposure; and the construction sequence, which dictates the relative position of the erected steel structure and the concrete column.
Subject Headings: Steel structures | Concrete structures | Composite structures | Steel columns | Lateral loads | Structural systems | Concrete columns
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