Building Code of the Philippines(1)

Readings shall be made for the measurements of

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: by a length of wall equal to 4 times the thickness of the wall then the pilaster is in essence only constructed for convenience of connections, and, or to remove eccentricity from the wall. In this case the pilaster is nominal in size and reinforcing. Otherwise the pilaster must be designed and considered a column. (2) Masonry columns shall have a minimum nominal dimension of 30 centimeters (12 inches) and a maximum height of 20 times their least dimension. Columns which are stressed to less than 1/2 of their allowable stress may have a 20 centimeters (8 inches) minimum dimension. Vertical reinforcement shall be a minimum of 1/2 of one percent and a maximum of 4 percent (4%) of the gross cross-sectional area of the column. Columns which are stressed to less than 1.2 of their allowable stresses may have their reinforcement reduced to a minimum of 1/5 of one percent. In all cases the reinforcement of columns shall not be less than 4 bars of 1 centimeters (3/8 inch) minimum diameter. (3) Lateral ties shall be not less than 3.76 millimeters in diameter (Gauge No. 9) wire and shall be spaced not over 16 bar diameters, or the least dime9nsion of the column. Ties may be placed in the morta joint or in contact with the vertical steel. (1) Reinforced masonry shear and bearing shall be limited by a ratio of height to thickness of 25, where the word "height" is taken to mean the clear distance between lateral supports. The minimum thickness of bearing walls shall be 15 centimeters (6 inches). Reinforced masonry non-bearing walls shall be limited by a ratio of height to thickness of 48 for interior walls and 30 for exterior walls. (2) In computing flexural stresses where reinforcement occurs, the effective width shall be not greater than four times the wall thickness, the center to center distance between reinforcement, no 1.20 meters (4 feet). Where stack bond is used, the (b) Walls effective width shall be not greater than 3 times the unit length nor 60 centimeters (2 feet) in solid unit masonry and not greater than 1-½ times the unit length nor 60 centimeters (2 feet) in hallow unit masonry. (3) The spacing of vertical reinforcement shall be not greater 1.20 meters (4 feet) nor 12 times the wall thickness. The minimum size of vertical reinforcing bars shall be 1 centimeter (3/8 inch) in diameter. The minimum amount of vertical reinforcement shall be one-twentieth of one percent 1/20% of the gross crosssectional horizontal area of the masonry portion of the wall. There shall be a minimum of one vertical bar continuous between lateral supports and each side of each opening and each corner. (4) The spacing of horizontal reinforcement shall be not greater than 80 centimeters (2 feet, 8 inches). The minimum amount of horizontal reinforcement shall be onetenth of one per cent of cross-sectional vertical area of the wall. There shall be continuous horizontal reinforcement at the top of the foundation wall, at each floor level, at the top of the wall, and...
View Full Document

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.

Ask a homework question - tutors are online