Building Code of the Philippines(1)

Loads and anticipated construction loads section 508

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Unformatted text preview: in these regulations are defined as follows: fc fc' n v vc w = = = = = = Compressive stress in concrete Compressive strength of concrete (see Section 5.02) ratio of modulus of elasticity of steel to that of concrete shear stress shear stress carried by the concrete weight of concrete, pounds per cubic foot (b) General. For structure to be designed with reference to allowable stresses, service loads, and the accepted straight-line theory of stress and strain in flexure, the allowable stresses of this Section shall be used, and designs shall conform to all provisions of this Code except sections 5.14 and 5.18. (c) Allowable Stresses in Concrete. The stresses for flexure and bearing on all concrete designed in accordance with Section 5.09 to 5.13 shall not exceed the values set forth in Table 5.09-A. The stresses for shear shall not exceed those set forth in Table 5.09-A, except as specified in Section 5.11. The allowable stresses for bond shall not exceed those specified in Section 5.12. (d) Allowable Stresses in Reinforcement. Unless otherwise provided in this Chapter, steel for reinforcement shall not be stressed in excess of the following limits: In tension: For billet-steel or axle-steel concrete reinforcing bars of structural grade ..................................................................................... For main reinforcement, 9.52 millimeters (3/8 inch) or less in diameter, in one-way slabs of not more than 3.6 meters (12 feet) span, 50 per cent of the minimum yield strength specified in the ASTM Standards for the particular kind and grade of steel used, but not to exceed .............................................................................. For deformed bars with a yield strength of 60,000 psi. or more and in sizes No. 11 and smaller ................................................... Cold drawn steel wire in welded wire fabric 18,000 psi. 30,000 psi. 24,000 psi reinforcement ............................................................................................ 30,000 psi. For all other reinforcement ................................................................................... 20,000 psi. In compression, vertical column reinforcement Spiral columns, 40 per cent of the minimum yield strength, but not to exceed ....................................................................................... 30,000 psi. Tied columns, 85 per cent of the value for spiral columns, but not to exceed ....................................................................................... 25,000 psi. Composite and combination Columns: Steel with minimum yield strength of 36,000 psi. .................................... 18,000 psi. Steel with minimum yield strength of 33,000 psi. .................................... 16,000 psi. Cast iron sections ...................................................................................... 10,000 psi. Steel pipe (See limitations of Section 5.13 (g) ) For compression in flexural members, see Section...
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This note was uploaded on 09/22/2013 for the course ARIDBE AR taught by Professor Any during the Fall '12 term at Mapúa Institute of Technology.

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