Structural Floor One Way Ribbed Slab

The ribs are supported on girders that rest on columns.

Structural floor one way ribbed slab.

763 3 comparison between the results of finite element method and traditional method two bays one way ribbed slab is analyzed by both traditional and finite element methods to determine the induced moments of the rib. Ribbed slabs are slabs cast integrally with a series of closely spaced joist which in turn are supported by a set of beams. Read more about the floor system of structure. One way slab action is assumed in a ribbed floor slab with joist beams made of the precast double tee section in the ribbed floor with integral beams and also in hollow block or hollow cored slabs.

One way slab design example. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi. Depending on the boundary condition and the properties of the slabs methods of finding bending moment is expressed in the bs 8110 part 01 as follows. This brief will provide guidance to architects and structural engineers during the concept phase of the design for selecting a suitable one way flooring system.

The selection of an appropriate system is vital in achieving an overall economic building. One way joist slab ribbed slab it consists of a floor slab usually 50 to 100mm thick supported by reinforced concrete ribs or joists. T beams are known as joists which are formed by setting steel pan at a constant spacing. Slab design is comparatively easy when compared with the design of other elements.

A one way joist floor slab consists of a series of small reinforced concrete t beams that are connected with girders that in turn carried by the building column. The first stage of the design is finding the bending moment of the slab panels. Ribbed floors consisting of equally spaced ribs are usually supported directly by columns they are either one way spanning systems known as ribbed slab or a two way ribbed system known as a waffle slab. The ribs are usually tapered and are uniformly spaced at distances that do not exceed 750mm.

One way ribbed slab system. Slabs are structural members forming floors and roofs in buildings. One way spanning slabs. Ribbed waffle slab system.

The dimensions of each bay are 5 6x5 4m. 1 geometry for one way ribbed slab the load on each rib equals 0 5 t m the shear force and the bending moment are t wl. A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft. Concrete is cast between those spacing to make those ribs and in.

Mathematical structural analysis of one way. The slab was 6 10m simply supported on four sides and subjected to uniform load 1t m 2 and as shown in fig. They may be solid of uniform thickness or ribbed with ribs running in one direction or two directions waffles. The floor system is the major part of a building structure.