18.3 The stairs shown in Fig. 18.23 are to be designed for a live load equal to 100 psf (4.8 kN/m). The stairs are supported by beams, as shown. Design the stairs and the supporting beams for f = 3ksi (20 MPa) and f, = 60 ksi (400 MPa).

18.3 The stairs shown in Fig. 18.23 are to be designed for a live load equal to 100 psf (4.8 kN/m). The stairs are supported by beams, as shown. Design the stairs and the supporting beams for f = 3ksi (20 MPa) and f, = 60 ksi (400 MPa).

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

18.3 The stairs shown in Fig. 18.23 are to be designed for a live load equal to 100 psf (4.8 kN/m). The stairs
are supported by beams, as shown. Design the stairs and the supporting beams for f = 3 ksi (20 MPa)
and f, = 60 ksi (400 MPa).
olems
723
Beam E
Вeam A
I'0"
1'0"
5' 0"
6' 0"
Beam C
l'0"
-9' 2"-
10 runs X 11" = 110"
Beam B
All columns
12" X 11"
8' 3"
9 runs X 11" =99"
Beam D
Ground level
Figure 18.23 Problem 18.3.

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