Jack Arch Roof Ppt

Flat roofs besides above another types of roofs are tin cement sheets t iron stone slab r b c and rcc slab. Upper side common rafters are supported on a wall plate which in turn rest on a projecting corbel stone from the wall. 12 4 1 jack arch roofs in jack arch roofs joist of appropriate size are kept parallel at interval of 1 mm approx so as to complete span of a room is divided into one meter span.

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Jack arch roof ppt.

The roofing technique in auroville is that of jack arch roof with terra cotta hollow blocks and pre cast concrete beams. Roofing material rests on battens battens on common rafter and common rafter on wall plate. The more traditional ones are called jack arches where the arches are formed in the roof itself supported by the centering while the recent researched type is arch panel roof where the arches are made on ground to be lifted up and placed. Among the advantages of jack arch roofing is unlimited length.

Materials this type of roof may be built with materials such as brick steel concrete and clay gypsum mortar. Lean to roof shed roof it is used covering verandah sheds and outhouses connected to main building. The flat roof are constructed in flag stones reinforced cement concrete reinforced brick work jack arch roof or precast cement concrete units. Ak roofing ppt pptx free download as powerpoint presentation ppt pptx pdf file pdf text file txt or view presentation slides online.

Terminology 2 0 for the purpose of this standard the following definitions shall pply. 1 1 this standard covers the design and construction of jack arch type of built up floor or roof. 1 2 this standard covers only the construction practices that are in general use in this country. Above them concrete fill is laid providing a level surface upon which the flooring finish can be if there is another level in the structure.

The opening will accommodate upos 0018 fire box door. The arch detailed here spans a 410mm square fire box loading opening in the facade of a contraflow heater. Jack arch roofs 2. Jack arch construction sequence.

2 1 brick jack arch this is a low arch constructed with bricks laid. Jack arch rood ppt. Jack arch roof construction where trapezoidal reinforced concrete beams are used at intervals between which hollow terra cotta blocks form small elongated multiple vaults. Lower side rest on the wall plate.

Determining the point of intersection on the centre line is of the utmost importance to ensure the extrados is the right length to accommodate all 10 voussoir and the key. Once the width of the room is limited say within 12 to 15 t which can be connected by wood beam or steel girder the length of the. Jack arch roof bc 210 free download as powerpoint presentation ppt pptx pdf file pdf text file txt or view presentation slides online.