Content Page: 5 Masonry and Walling

  • Mortar And Grout For Reinforced Brickwork

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    (1)Mortar used in reinforced brickwork shall be of class A or class B. (2)Mortar used for grouting shall be of class A or class B, with additional water in order to produce a consistency which will enable such mortar, or grout, to be poured without causing segregation. (3)Grout shall not be used in horizontal joints.…

  • Materials For Reinforced Brickwork

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    In reinforced brickwork- a) bricks shall have a compressive strength of not less than 14 megapascals; b) reinforcement shall comply with the requirements for reinforcement set out in Chapter 3; c) mortar materials shall be required by section section 5.

  • General Requirements For Reinforced Brickwork

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    (1) The design of buildings and structural members in buildings constructed of reinforced brickwork shall be based on the same general principles of design and analysis as are adopted for the design of similar members and structures of reinforced concrete. (2) The stresses in such members and structures shall not exceed the limits set out…

  • Reinforced-Concrete Walls And Columns

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    (1) Reinforcement, mixing and placing of reinforced-concrete walls. – Reinforcing of concrete walls shall be carried out, and the concrete shall be mixed and placed, in accordance with the requirements of Chapter 3. (2) Design and thickness of reinforced-concrete walls. -Reinforced-concrete walls shall be designed and constructed in accordance with the provisions of Chapter 3,…

  • Stresses Under Concentrated Loads

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    When the combined effects of axial, eccentric and lateral forces are all taken into account, the local under the ends of lintels or under column-bases or other concentrated loads shall not exceed the average stresses permitted by sections 67 to 72 for axial vertical loads alone by more than 50 per centum.

  • Stresses Due To Eccentric Or Lateral Forces

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    (1) When the eccentric or lateral forces, together with axial loads, have to be taken into account in walls, piers or columns, the stresses shall be calculated on the assumption that the straight-line theory applies to such walls, piers or columns as are subject to bending moments, that is to say that planes in the…

  • Axial Stresses In Natural Stone Masonry

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    The stresses in masonry constructed of natural stone due to axial loads shall not exceed those set out in Table XXIV for the kind of stone, type of walling an class of mortar set out in that Table: Provided that, if class A mortar is used, such stresses may be increased to 10 per centum…

  • Axial Stresses In Cast-In-Situ Concrete

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    (1)Where the slenderness ratio does not exceed 15, the stresses due to axial vertical loads in- a) cat-in-situ plain concrete walls computed as evenly distributed over- i) the cross-sectional area of the wall; or ii) if there are openings in the wall, over the reduced cross sectional area between openings; and b) plain concrete columns;…

  • Axial Stresses In Block Masonry

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    (1) The axial stresses in masonry constructed of blocks may be increased to not more than one and a half times the values set out for brick masonry in sections 67 and 68 for the conditions described therein. (2)The stresses in masonry constructed of cellular or hollow blocks shall not exceed those for solid blocks…

  • Stresses For Large Slenderness Ratios

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    (1) When all other conditions are as stated in section 67, with the exception that the slenderness ratio exceed 12, but does not exceed the values set out in Table XIX, then the stresses in masonry shall not exceed the basic stresses set out in section 67 multiplied by the factors set out in Table…