Unformatted text preview: t; as determined by the following formula:
R = 23.1 ( 1 + D ) x 100
Where: or R = ( D + L ) x 100 D
4.33 L L R = Reduction in percent
D = Dead Load per unit area supported by the member.
L = Live Load per unit area supported by the member.
For storage live loads exceeding 500 kilograms per square meter (100 pounds per square foot), no
reduction shall be made except that design live loads on columns may be reduced 20 percent.
This live load reduction shall not exceed 40 per cent in garage for the storage of private pleasure cars
having a capacity of not more than nine passengers per vehicle. Section 1.07: Deflection
The deflection of any structural member shall not exceed the values set forth in Table No. 1.07-A,
based upon the factors set forth in Table No. 1.07-B. The deflection criteria representing the most
restrictive condition shall apply. Deflection criteria for materials not specified shall be developed in a
manner consistent with the provisions of this Section. See Section 1.05 (d) for camber requirements.
TABLE 1.07 - A
MAXIMUM ALLOWABLE DEFLECTION
FOR STRUCTURAL MEMBERS ¹
TYPE OF MEMBER
WITH L.L. ONLY
WITH L.L. + D.L.
Roof Member Supporting
Plaster or Floor Member L/360 L/240 ¹ Sufficient slope or camber shall be provided for flat roofs in accordance with Section 1.05 (d).
L= = Live Load
= Dead Load
Factor as determined by Table No. 1.05-A
Length of member in same units as deflection Section 1.08: Live Loads Posted
The live loads for which each floor or part thereof of a commercial or industrial building is or has
been designed shall have such designed live loads conspicuously posted by the owner in that part of each
storey in which they apply, using durable metal signs, and it shall be unlawful to remove or deface such
notices. The occupant of the building shall be responsible for keeping the actual load below the
Section 1.09: Retaining Walls
Retaining walls shall be designed to resist the lateral pressure in accordance with accepted
engineering practice. Walls retaining drained earth may be designed for pressure equivalent to that
exerted by a fluid weighing not less than 30 pounds per cubic foot and having a depth equal to that of the
retained earth. Any surcharge shall be in addition to the equivalent fluid pressure.
Section 1.11: Walls and Structural Framing
(a) General. Walls and structural framing shall be erected true and plumb in accordance with the
design. Bracing shall be placed during rection wherever necessary to take care of all loads to which the
structure may be subjected. TABLE 1.11 - A
SHAPE FACTORS FOR RADIO TOWERS
AND TRUSSED TOWERS TYPE OF EXPOSURE FACTOR Wind normal to one face of tower
Four-cornered, flat or angular section, steel or wood
Three-cornered, flat or angular section, steel or wood
Wind on corner, Four-cornered tower, flat or angular sections
Wind parallel to one face of three-cornered tower,
flat or angular sections 2.20
2.40 1.50 Fact...
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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.
- Fall '12