Jack Arch Flooring Ppt
10 27 2014 1 prepared by.
Jack arch flooring ppt. Instead they are flat in profile and are used under the same circumstances as lintels unlike lintels which are subject to bending stress jack arches are composed of. 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. Floor covering is a term to generically describe any finish material applied over a floor structure to provide a walking surface. Introduction jack arch slabs have been extensively used to floor and roof urban and rural buildings in iran.
Scribd is the world s largest social reading and publishing site. Jack arch masonry slab developed in the 19th century in britain has been used widely to floor and roof industrial and residential masonry buildings in many parts of the world. Floor covering is a term to generically describe any finish material applied over a floor structure to provide a walking surface. The jack arch flooring system is stable under normal static conditions.
Ppt by maruthish on floors 1. Engr fazal e jalal 2. These floors are formed through constructing brick or concrete arches called jack arches on the lower flanges of mild steel joists. Flooring is the general term for a permanent covering of a floor or for the work of installing such a floor covering.
The brick arches transfer the gravity loads mainly in compression to. Unlike regular arches jack arches are not semicircular in form. Floors and flooring 1. Alternate names are flat arch and straight arch.
The joists are spaced 1 to 1 5 m centre to centre and are supported at their ends either on the walls or on longitudinal girders. Jack arch slabs retrofitting concrete layer masonry pushover test 1. 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. Upper floors ppt free download as powerpoint presentation ppt pdf file pdf text file txt or view presentation slides online.
A jack arch is a structural element in masonry construction that provides support at openings in the masonry. Jack arch roof construction where trapezoidal reinforced concrete beams are used at intervals between which hollow terra cotta blocks form small elongated multiple vaults.