The stairs shown in Fig. 18.23 are to bedesigned for a live load equal to 100 psf (4.8kN/m). The stairs are supported by beams, asshown. Design the stairs and the supportingbeams for f'c = 3ksi (20 MPa) and fy = 60 ksi(400 MPa).Вeam EВeam AI'0"6 0Beam CI'0"-9' 2"-10 runs X 11"- 110"Beam BAll columns12 x 118 3 9 runs X 1I- 99Beam DGround levelFigure 18.23 Problem 18.3.

Given:- live load =4.8kN/m d'c=20MPa fy=400MPa To find:- design stairs

Answered: 's are supported by the stairs and the…

Engineering

Civil Engineering

's are supported by the stairs and the su 3ksi (20 MPa) and f

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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Concept explainers

Frames

The trusses and frames are the two most important structural members of civil engineering. Trusses are the interconnection of links and other structural members. The interconnection with other members makes the system behave as a single member that supports and transfers loads. Trusses are generally two types, plane truss, and space truss. Frames on the other hand form the skeleton of any building construction. Frames are structures formed by the connection of beams, columns, slabs, and joists. These members provide the building with the required structural support.

Question

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'c = 3ksi (20 MPa) and fy = 60 ksi
(400 MPa).
Вeam E
Вeam A
I'0"
6 0
Beam C
I'0"
-9' 2"-
10 runs X 11"- 110"
Beam B
All columns
12 x 11
8 3 9 runs X 1I- 99
Beam D
Ground level
Figure 18.23 Problem 18.3.

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