P11.18. Analyze the frame in Figure P11.18 by moment distribution. Determine all reactions and draw the shear and moment diagrams locating points of inflection and labeling values of maximum shear and moment in each span. E is constant, but I varies as noted.

P11.18. Analyze the frame in Figure P11.18 by moment distribution. Determine all reactions and draw the shear and moment diagrams locating points of inflection and labeling values of maximum shear and moment in each span. E is constant, but I varies as noted.

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

100%

Disregard the DL on CD. Solve using regular stiffness and again using modified stress for all members that qualify

P11.18. Analyze the frame in Figure P11.18 by moment
distribution. Determine all reactions and draw the shear
and moment diagrams locating points of inflection and
labeling values of maximum shear and moment in each
span. E is constant, but I varies as noted.
21
16'
w = 3 kips/ft
B
+
I
21
16'
P11.18
F
I
w = 2 kips/ft
+6
8 kips
CID
9'
10'
|||

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Step 1: Given

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Step 2: Fixed end moments

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Step 3: Distribution factor

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Step 4: Moment distribution table

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Step 5: Free Body diagram

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Step 6: Shear force diagram

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Step 7: Bending moment diagram

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