Uniform load q = 10 lb/ft acts over part of the span of fixed-end beam AB (see figure). Upward load P = 250 lb is applied 9 ft to the right of joint A. Find the reactions at A and B.
The reaction at fixed joint
Answer to Problem 10.4.21P
The reaction at
The moment at
The reaction at
The moment at
Explanation of Solution
Given information:
The length of the beam is
Figure below shows the free body diagram of fixed beam.
Figure-(1)
Write the expression for the reactions forces at point A.
Here, the point load is p, the length of the beam is L, the moment s acting at A and B is
Write the expression for the reactions forces at point
Write the expression for the compatibility Equation at
Here, the angles at the corresponding ends are represented by the subscript for
Write the expression for the compatibility Equation at
Write the expression for the values of slopes of type 1 loading at point
Write the expression for the value of slopes of type 1 loading at point
Write the expression for the value of slopes for type 2 loading at point
Write the expression for the values of slopes for type 2 loading at point
Write the expression for the values of slopes for type 2 loading at point
Write the expression for the values of slopes for type 2 loading at point
Substitute
Substitute
Substitute
Substitute
Substitute
Substitute
Write the expression for the fixed end moments due to the element of load
Write the expression for the fixed end moments due to the element of load
Here the uniform distributed load is
Write the expression the moment at
Substitute
Write the expression for the moment at point B.
Substitute
Write the expression for the reaction force in term of elemental load
Write the expression for the reaction force in term of elemental load
Write the expression for the reaction at point
Substitute
Write the expression for the reaction at point
Substitute
Write the expression for the reaction at point A.
Substitute
Write the expression for the reactions at point B.
Write the expression for the moment at point A.
Substitute
Write the expression for the reaction moment at point B.
Substitute
Calculation:
Substitute
Substitute
Substitute
Substitute
Conclusion:
The reaction at point
The reaction at point
The moment at point
The moment at point
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Chapter 10 Solutions
Mechanics of Materials, SI Edition
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- Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning