Forces in Trusses: Tips for Finding Forces in Members

In summary, the conversation discusses finding the force Ay and its relation to the force in member AE. It is clarified that the force in member EF cannot be assumed to be equal to Ex due to the presence of another member, BE, in the joint. Advice is given to analyze the joint further.
  • #1
TSN79
424
0
Look at the bottom problem at this page:

http://physics.uwstout.edu/StatStr/statics/StatII/statp22t2.htm

When I have found the force Ay (the y-component of the reaction force at point A), does that in this case mean that the force in member AE is then equal to this? If so, then the force in member EF is equal to Ex, correct? Or?

Any tips appreciated...
 
Last edited by a moderator:
Physics news on Phys.org
  • #2
The first part is right about AE but you can't assume EF=Ex because there is also member BE framing into the joint you have to analyze.
 
  • #3
Ah, yes. I've got it now, thanks haynewp!
 

1. What is a truss and how does it work?

A truss is a structure made up of interconnected members that work together to support loads. It uses the principle of triangulation to distribute forces and maintain stability. The members of a truss are typically made of straight bars or beams, and can be connected at joints or nodes.

2. How do you calculate the forces in truss members?

To calculate the forces in truss members, you will need to use the method of joints or method of sections. The method of joints involves analyzing the forces at each joint in the truss, while the method of sections involves cutting the truss into smaller sections and analyzing the forces in each section.

3. What are some tips for finding forces in truss members?

Some tips for finding forces in truss members include labeling all forces and angles, using the method of joints for simple trusses and the method of sections for more complex trusses, breaking the truss into smaller sections if necessary, and considering the equilibrium of forces at each joint or section.

4. How can I ensure the stability of a truss?

To ensure the stability of a truss, you should make sure that all joints are properly connected and that the members are strong enough to support the expected loads. It is also important to distribute the loads evenly throughout the truss and to avoid placing excessive weight on any one member.

5. What are some real-world applications of truss structures?

Truss structures are commonly used in bridges, roofs, cranes, and other types of large structures. They are also used in smaller-scale applications such as furniture, scaffolding, and support systems for electrical and mechanical equipment. Trusses are chosen for these applications because they are lightweight, strong, and cost-effective.

Similar threads

How to check the Stability of ANY Truss?
    • Mechanical Engineering
Replies
1
Views
679
Statics: Statically Indeterminate Unstable Plane Truss
    • Introductory Physics Homework Help
Replies
4
Views
4K
Forces in a Howe truss (2D) pinned at BOTH ends
    • Mechanical Engineering
Replies
18
Views
4K
Pulley on Incline: Finding Forces & Tension
    • Introductory Physics Homework Help
Replies
10
Views
1K
Deriving the magnitude range of the force F for which van does not tip over
    • Introductory Physics Homework Help
Replies
2
Views
772
Solving Simple Truss Problem: Find Reaction Force at A
    • Introductory Physics Homework Help
Replies
10
Views
4K
Engineering Mechanics Question
    • Introductory Physics Homework Help
Replies
5
Views
986
Force of the Ladder on a Wall Torque
    • Introductory Physics Homework Help
Replies
5
Views
2K
Tips for Solving Truss Forces Without Finding Support Reactions
    • Introductory Physics Homework Help
Replies
1
Views
1K
Finding Forces in Truss Members: A Guide for Solving Truss Problems
    • Introductory Physics Homework Help
Replies
3
Views
1K

Hot Threads

Recent Insights

Back
Top