3 k/ft A D -18 ft- -18 ft- -18 ft- El - constant (a) Continous Beam Mga Mc Mạc Mcp (b) Free-Body Diagrams of Joints B and C 3 k/ft 20.7 27 3 k/ft 27 20.7 3 k/ft D 21.6 70.2 70.2 70.2 70.2 21.6 6.3 20.7 27 27 20.7 B, - 47.7 C,- 47.7 (c) Member End Moments and Shears 3 k/ft 21.6 21.6 k-ft k-ft D 6.3 k 47.7 k 47.7k 6.3 k (d) Support Reactions FIG. 15.6

3 k/ft A D -18 ft- -18 ft- -18 ft- El - constant (a) Continous Beam Mga Mc Mạc Mcp (b) Free-Body Diagrams of Joints B and C 3 k/ft 20.7 27 3 k/ft 27 20.7 3 k/ft D 21.6 70.2 70.2 70.2 70.2 21.6 6.3 20.7 27 27 20.7 B, - 47.7 C,- 47.7 (c) Member End Moments and Shears 3 k/ft 21.6 21.6 k-ft k-ft D 6.3 k 47.7 k 47.7k 6.3 k (d) Support Reactions FIG. 15.6

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

Beams

In structural engineering, a beam is a component made of a variety of materials (including steel alloys, and wood) that can resist loads applied laterally to the beam axis. Members, elements, rafters, shafts, and purlins are all terms used to describe beams.

Question

Determine the reactions and draw the shear and bending moment diagrams for the three-span continuous beam shown in Fig. 15.6(a) by the slope-deflection method.

3 k/ft
A
D
-18 ft-
-18 ft-
-18 ft-
El - constant
(a) Continous Beam
Mga
Mc
Mạc
Mcp
(b) Free-Body Diagrams of Joints B and C
3 k/ft
20.7 27
3 k/ft
27 20.7
3 k/ft
D
21.6
70.2
70.2
70.2
70.2
21.6
6.3
20.7
27
27
20.7
B, - 47.7
C,- 47.7
(c) Member End Moments and Shears
3 k/ft
21.6
21.6
k-ft
k-ft
D
6.3 k
47.7 k
47.7k
6.3 k
(d) Support Reactions
FIG. 15.6

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