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Slabs are constructed to provide flat surfaces, usually horizontal, in building floors , roofs, bridges , and other types of structures. The slab may be supported by walls, by reinforced concrete beams usually cast monolithically with the slab, by structural steel beams, by columns , or by the ground. You can also read 16 Different types of Slabs in Construction. One way slab is a slab which is supported by beams on the two opposite sides to carry the load along one direction.
Slab is an important structural element generally constructed horizontally to provide flat surfaces such as roof, ceiling, floor, etc. Slabs may be supported by RCC beams, columns, steel beams, etc. Basically, the depth of a slab is very small compared to its depth. There are mainly two types of slabs, 1. One way slab and two way slab. One way slab is a slab which is supported by beams on the two opposite sides to carry the load along one direction. In one way slab, the ratio of longer span l to shorter span b is equal or greater than 2, i.
Slab Design Pdf. Design of a stair slab The stairs are of the type shown in figure 8. Normally 50 years for concrete and 30 years for asphalt. Determine the minimum thickness of slab from serviceability criteria of deflection control. Designers usually decide on a single slab design as the structural solution for a building. For suspended floors it covers both upper floors and those at ground level where a slab-on-ground may not.
There may be beams on all four sides, as in Fig. If the ratio of length to width of one slab panel is larger than about 2, most of the load is carried in the shorter direction to the supporting beams and one-way action is obtained in effect, even though supports are provided on all sides. The discussion in this will be about the simplest type of two-way slab action see Fig 7. One way slabs are concrete structural floor panels for which the ratio of the long span to the short span equals or exceeds a value of two. Two way slabs are concrete structural floor panels for which the ratio of the long span to the short span lesser a value of two.
The slab is the horizontal structural component that provides a flat and purposive surface. Such a surface may be floor, roof or ceiling. Slab carries the loads imposed on it and duly transfers the forces either in a one way or in a two-way mechanism. Thus, slab serves both as a load-bearing surface as well as a walking surface. Depending upon the requirement and the design of the structure, different types of slab such as concrete slab, flat slab, waffle slab etc can be used.
Slabs are those structure which transfers dead load and lives load over large span or area to the beam and column also on the wall sometimes. In this article, I am going to explain to you the design of one way slab step by span. The slab is the member without which, there is no meaning of constructing any structure like a building, water tank, bridge, culvert, etc. Its thickness is considerably smaller than another member of the structure. It may be of different materials like metal or concrete. The slab is frequently used for the construction of different structures like building, bridge, culvert, at top and bottom of the water tank, stair and so on. Depending upon the support condition, the slab may be simply supported, continuous, or cantilever slab.
Civil Lead. In reinforced concrete construction, the slab is an extensively used structural element forming floors and roofs. It may be supported by reinforced concrete beam, by masonry wall or directly by column. The difference between one way and two way slab are as follows. One way slab essentially acts as shallow beams with a large width. The slabs supported on all four sides also behave as one-way slabs if the longer span ratio to shorter span is greater than two. Also, Read — What is Concrete Cover?