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1. (WO1998051883) COMPOSITE STEEL/CONCRETE COLUMN

Pub. No.:    WO/1998/051883    International Application No.:    PCT/CA1998/000480
Publication Date: Fri Nov 20 00:59:59 CET 1998 International Filing Date: Fri May 15 01:59:59 CEST 1998
IPC: E04C 3/34
Applicants: LE GROUPE CANAM MANAC INC.
Inventors: VINCENT, Richard
Title: COMPOSITE STEEL/CONCRETE COLUMN
Abstract:
The composite steel/concrete column (2) comprises a longitudinally extending H-shaped steel assembly (4) having a pair parallel flange plates (6) and a web plate (8) interconnecting the flange plates and defining two opposite channel-shaped spaces (10). A plurality of spaced-apart transversal tie bars (12) are disposed along the steel assembly on each side of the web plate for interconnecting the flange plates. A mass of concrete (14) is filling the channel-shaped spaces. The column steel concrete column is characterised in that the ratio of the cross-sectional surface area of the steel assembly with respect to the total surface area of the composite steel/concrete column is less than 9 %, preferably 2 % to 5 %. The column is principally to be utilized in structural steel high-rise buildings which have the advantage of shop prefabrication resulting in rapid on-site construction. The column shows a steel to concrete ratio greatly reduced as compared to prior art composite columns, thereby greatly reducing the production cost and the size of the column and also greatly reducing its construction time.