Building Code of the Philippines(1)

Persons engaged in the demolition work using such

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Unformatted text preview: ely wet down at frequent intervals, whenever the dust from demolition operations would cause a menace or hardship to adjoining buildings or premises. 5.2.8 The bottom of each chute shall be equipped with an adjustable gate or stop for regulating the flow of materials. Except when in actual use in the discharge of materials, the gate or the stop shall be kept closed. A reliable person shall be designated to control the gate and the backing up and loading of trucks. He shall see to it that no person is allowed to stand or pass under the discharge end of the chute at any time. 5.2.9 5.3 The area at the discharge end of each chute shall be completely enclosed with a substantial fence at all times or otherwise made inaccessible. A danger sign shall be placed at the discharge end of every chute. Demolition of Walls and Chimneys 5.3.1 No wall, chimney or other construction shall be allowed to fall in mass, except under competent supervision. Scaffolds or stagings shall be erected for workers if walls or other elements of the structure are too thin or too weak to work on. Heavy structural members, such as beams or columns, shall be carefully lowered and not allowed to fall freely. 5.3.2 Masonry walls or sections of masonry walls shall not be permitted to fall upon the floors of the building in such masses as to exceed the safe carrying capacity of the floors. 5.3.3 No walls or section of walls whose height is more than twenty-two (22) times its thickness shall be permitted to stand without lateral bracing unless such wall is in good condition and was originally designed to stand to a greater height without such lateral support. 5.3.4 Workmen shall not be permitted to work on top of a wall when weather conditions constitue a hazard. 5.3.5 Before demolishing any interior or exterior wal which is within 3.00 meters of any opening in the floor immediately below, such opening shall be substantially planked over unless all workmen are removed from all floors below and access to such floors is positively prevented. 5.3.6 At the completion of each day's work, all walls undemolished shall be left stable and in no danger of overturning or falling. 5.3.7 Foundation walls which serve as retaining support each and adjoining structures shall be be demolished until such adjoining structures have been underpinned or brace, and earth either removed or supported by sheet piling or other suitable material. 5.3.8 In the demolition of brick and/or masonry chimneys which cannot safely be toppled or dropped, all materials shall be dropped down through the inside of such chimneys. 5.3.9 Theloading point at the discharge end of any chute at or near the bottom of a chimney shall be completely protected by means of any overhead timber canopy constructed in accordance with Section 2.3 of this Rule. 5.3.10 To enable workman to reach or leave their work on any wall or scaffold, walkways shall be provided. Such walkways shall not be less than three (3) planks, properly tied or nailed t...
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