# Determination method of building height and building floors for building fire prevention 2-4

In the building height, the fifth and sixth floors not included in the building height shall not be included in the building floors

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Otherwise, it accounts for a large proportion of the roof area, that is, the auxiliary room is also included in the building height

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The essence of building height is a distance, and the starting point and ending point of this distance should be correctly determined

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(6) Residential buildings: building height calculation formula ☟☟☟☟☟☟☟☟☟☟☟☟☟ building height calculation, outdoor ground is the starting point; parapet height is not calculated, the roof protrudes half to half; sloping roof to take the middle, a variety of forms of the largest choice; general H3 steps, bandits scattered; open ground can be reduced, the second son wants me to live in

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Sloping roof: pithy formula: (slope eaves, ridge) building height h = [(cornice elevation outdoor design ground elevation) + (ridge elevation outdoor design ground elevation) (2) flat roof: pithy formula: (plane plane) building height h = roof elevation outdoor design ground elevation (parapet) Do not calculate) (3) multiple forms of roof (both flat roof and sloping roof): pithy formula: (many big) calculate H1 and H2 according to flat roof and sloping roof respectively, take the big value, H = max × (H1 and H2) (4) buildings on stepped floor: pithy formula: platform wall, road, exit / minute (forced theft punishment) (5) buildings with partial protruding roof: pithy formula: bureau-4, not count (situation is not good) Two points need to be noted: auxiliary room: if the part protruding from the roof is the main functional room, it should be included in the building height; if the scale of auxiliary room is relatively small, which accounts for less than 1 / 4 of the roof area, it can not be included in the building height

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(terminal elevation starting elevation = building height) ● 1

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The correct determination of building height and building floors is the premise of building classification

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Determination of building height ● 1

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From the perspective of fire protection, building height and building floors are important indicators for building classification

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(2) the number of building floors ● the number of building floors shall be calculated according to the natural number of floors of the building

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