Rcc Spiral Staircase Design Pdf

Spiral staircase these stairs are commonly used as emergency exits.
Rcc spiral staircase design pdf. It consists of a central post supporting a series of steps arranged in the form of a spiral. Table 7 4n en 1992 1 2. Plan and cross section views of stairs. Types and design of staircases.
Design the staircase by using concrete. Though the treads may be supported many other ways. Definitions classifications guidelines and assumptions. Table f1 3 select the waist h and average thickness t of staircase en 1992 1 1.
Wooden steel and reinforced concrete stairs due to functions and type of using material. Design procedure step task standard 1 determine design life exposure class fire resistance en 1990 table 2 1 en 1992 1 1. Minutes of the proceedings of the institution of civil engineers. Tekpekurede 1 year ago.
5 6 2 determine material strength bs 8500 1. Details that are belong to changing situations on the existing floor of stairs are sketched of plan cross section view with 1 10 and 1 20 scale. At the end lower the stair supported by a beam and continuous with the floor slab. Figure shows a typical spiral stair.
Design a straight flight staircase in a residential building that is supported on reinforced concrete walls 1 5 m apart center to center on both sides and carries a live load of 300 kg m2. There are typically two stringers one on either side of the stairs. The risers are 16 cm and goings are 30 cm. Such stairs are provided where space available for stairs is very much limited.
It is connected to a landing at upper part and supported by a beam at the end of the landing. Short axially loaded compression members. Stringer or string the structural member that supports the treads. Preparation of design charts.
Goings are provided with 3 cm thick marble finish. Table a 3 en 206 1. Spiral staircase design spiral staircase design. The stringers are notched so that the risers and treads fit into them.
Table 4 1 en 1992 1 2. I will be glad to get a reference of pdf file of literature. Volume 213 issue 1922 1922 pp. Weight of reinforced concrete γrc strength of concrete fc strength of steel fy.
Straight staircase design a reinforced concrete staircase for office use is shown in figure 1.