CSA - CAN3-A23.3-M84
Design of Concrete Structures for Buildings
|Publication Date:||1 January 1984|
This Standard provides requirements for the design and strength evaluation of building structures of reinforced concrete in accordance with the National Building Code of Canada.
(1) In addition to the requirements of this Standard it is necessary that the design of building structures of reinforced concrete be carried out in accordance with the provisions of the National Building Code of Canada governing fire resistance.
(2) The use of design methods, materials, and structural components not in accordance with this Standard is covered in Part 2 of the National Building Code of Canada.
(3) The National Building Code of Canada requires that certain reviews be carried out by the designer or another suitably qualified person to determine conformance with the design.
Requirements forthe design of certain unreinforced concrete building elements are also included in this Standard.
For special structures such as arches, tanks, reservoirs, bins and silos, towers, water towers, blast-resistant structures and chimneys, and for plain concrete, the provisions of this Standard shall govern insofar as they are applicable.
Note: Extensive structural deterioration has occurred in parking structures in areas where de-icing salts have been used. Designers should note that the durability of a parking structure, whether a separate structure or part of a structure, is a function of adequate cover, concrete quality, drainage, protection from environmental effects, such as freeze-thaw, chloride and water penetration, and allowance for structural effects, such as cracking and deflection due to temperature changes, creep, shrinkage, and restraint.
Concrete materials, strengths, cover, finishing methods, and curing methods should conform to the requirements of CSA Standard CAN3-A23.1 for corrosive environments. The use of protective systems such as waterproofing membranes or epoxy coated reinforcement should be considered. For further guidance see "Parking Structures". In: Concrete International, Vol. 2, No.3, March 1980 and Canadian Building Digests 224 and 225, Division of Building Research, National Research Council of Canada, 1983.
Drawings and Related Documents In addition to the information required by the National Building Code of Canada, the drawings and related documents for structures designed in accordance with this Standard shall include:
(a) the specified strength of concrete in various parts of the structure at stated ages or stages of construction and maximum size and type of aggregate;
(b) the specified strength or the grade of reinforcement;
(c) the size and the location of all structural elements and reinforcement;
(d) provision for dimensional changes resulting from prestress, creep, shrinkage, and temperature where applicable;
(e) the magnitude and the location of prestressing forces where applicable;
(f) protective coatings for reinforcement and hardware where applicable;
(g) the type and the location of splices of reinforcement where applicable;
(h) locations and details of expansion or contraction joints and the permissible locations and details for construction joints; and
(i) requirements for welding of reinforcement where applicable.