What are the components of the reaction force at A for a truss bridge?

  • Thread starter Thread starter NoobeAtPhysics
  • Start date Start date
  • Tags Tags
    Truss
Click For Summary
SUMMARY

The discussion focuses on calculating the components of the reaction force at point A for a truss bridge. The key equations used include the equilibrium condition for vertical forces, represented as sum of force y = 0, and the moment equation at point B, leading to the conclusion that Ay = 3F/4 and Ax = 0, confirming that point A acts as a roller support. The solution was verified by the participants, ensuring accuracy in the calculations.

PREREQUISITES
  • Understanding of static equilibrium principles
  • Familiarity with truss bridge mechanics
  • Knowledge of force and moment calculations
  • Basic proficiency in solving algebraic equations
NEXT STEPS
  • Study the method of joints in truss analysis
  • Learn about different types of supports and their reactions
  • Explore the concept of moment equilibrium in structural analysis
  • Investigate the effects of load distribution on truss structures
USEFUL FOR

Civil engineers, structural analysts, students studying mechanics of materials, and anyone involved in the design and analysis of truss bridges.

NoobeAtPhysics
Messages
75
Reaction score
0

Homework Statement



For the bridge shown in the diagram, find the components of the reaction force at A.

joints2.41.gif


Homework Equations



sum of force = 0

The Attempt at a Solution



sum of force y = 0 = Ay+by-F=0

Moment at B = 0 =-Ay*4 +F*3

therefore Ay = 3F/4

and Ax =0 (roller)
 
Physics news on Phys.org
Correct.
 
thanks, i put my solution in backwards online
 

Similar threads

Replies
3
Views
1K
  • · Replies 10 ·
Replies
10
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 4 ·
Replies
4
Views
6K
  • · Replies 1 ·
Replies
1
Views
1K
Replies
1
Views
6K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K