Content Page: 5 Masonry and Walling

  • Basic Stresses For Brick Masonry

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    (1) For solid masonry building-units of the dimensions of bricks, the stresses in masonry due to axial vertical loads calculated as evenly distributed stresses over- a) the cross-sectional area of a wall; or b) if there are openings in a wall, the reduced cross-sectional area between openings; or c) the cross-sectional area of a column;…

  • Slenderness Ratio

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    (1) Value of slenderness ratio.- The slenderness ratio of a wall shall be taken as the ration of the effective height to the effective thickness, or that of the effective length to the actual thickness, whichever ratio is smaller: Provided that the slenderness ratio of a free-standing wall shall be taken as the ratio of…

  • Dispersion And Application Of Forces

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    (1) In considering the transmission of forces through walls and other structural members of masonry and cast-in-situ concrete, the angle of dispersion of the forces through the material shall be taken as being not greater than 45 degrees from the direction of the forces. (2) Roof-loads from trussed roofs or girder roofs shall be considered…

  • General Requirements For Design

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    (1) Walls, piers and columns shall be so proportioned that the stresses in them due to the worst combination of forces to which they may be subjected 13 do not at any point exceed the values presented in sections 67 to 73 and section 78 for the several materials and conditions to which those sections…

  • Application Of Certain Sections

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    The provisions of sections 64 to 82 shall apply in the calculated design of masonry construction.

  • Empirical Construction In No-Fines Concrete

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    (1) Every empirically constructed no-fines concrete bearing-wall shall comply with the requirements of the following subsections. (2) Its thickness shall be as set out in Table XVI, except that, where it employs, light-mass aggregate and supports a flat, heavy roof, it shall be at least 50 millimetres greater in thickness than set out in Table…

  • Empirically Constructed Plain Normal Concrete Walls And Columns

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    (1) Every empirically constructed bearing-wall, pier and column of plain normal concrete shall comply with the requirements of this section. (2) The effective thickness of such wall shall be not less than set out in Table XV for the same conditions as those set out in sections 44 to 56 for brick wall of the…

  • Requirements For Empirically Constructed Masonry Of Gypsum Blocks

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    (1) Only non-bearing interior walls which are not likely to be exposed to continual dampness may be constructed of gypsum blocks. (2) The dimensions of walls of gypsum blocks shall comply with the requirements for brick partition-walls set out in section 54.

  • Requirements For Empirically Constructed Masonry Of Soil-Cement Building Units

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    Every empirically constructed wall of pre-cast soil-cement building -units shall comply with the following requirements- a) a bearing-wall shall have a thickness of not less than 200 millimetres for a solid wall or not less than 150 millimetres for each leaf of a cavity-wall, and every partition-wall have a thickness of not less than 100…

  • Requirements For Empirically Constructed Masonry Of Natural Stone

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    (1) Thickness.- Empirically constructed natural stone walls shall comply with the following requirements for thickness- a) the thickness of ashlar stone walls shall be not less than that specified under the same conditions for solid brick walls in sections 44 to 56; b) the thickness of squared rubble walls shall be not less than that…