Forces in a Truss: Solve for AB Force

  • Context: Undergrad 
  • Thread starter Thread starter canicon25
  • Start date Start date
  • Tags Tags
    Forces Truss
Click For Summary

Discussion Overview

The discussion revolves around solving for the force in member AB of a truss structure. Participants explore different methods for analysis, including sectioning the truss and using the method of joints. The context is primarily homework-related, focusing on the application of static equilibrium principles in truss analysis.

Discussion Character

  • Homework-related, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions whether it is valid to section the truss through members AB, BE, and EF to solve for the force in AB while disregarding fixed connections.
  • Another participant suggests finding the reaction forces at points A and E by taking components and moments as a potential approach.
  • A participant mentions using the method of joints and expresses doubt about the provided solution, claiming to have calculated a force of 36kN twice, suggesting a possible typo in the solution.
  • A later reply agrees with the assertion of a typo without providing further details.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best method to solve for the force in AB, with differing opinions on the validity of sectioning the truss and the accuracy of the provided solution.

Contextual Notes

There are unresolved assumptions regarding the fixed connections and the accuracy of the provided solution, which may affect the analysis.

canicon25
Messages
25
Reaction score
0
[PLAIN]http://img109.imageshack.us/img109/3825/truss3.jpg
I am having some problems with this one. Can I section the truss through members AB, BE and EF to solve for the force in AB, thus disregarding the fixed connections at left? I suppose I could go join by join, but I would like to section if possible.

Any help would be great.

**MODS Can you move this into the homework section. I just noticed your sticky but already created the thread ***
 
Last edited by a moderator:
Physics news on Phys.org
hi canicon25! :wink:

have you tried finding the reaction force at A and E, by taking components and moments? :smile:
 
i used method of joints and went one by one with this one after all. i think the provided solution is an error; i worked out 36kN twice. typo i think.
 

Similar threads

What do the numbers in the method of joints analysis for trusses represent?
  • · Replies 3 ·
Replies
3
Views
4K
Calculate Force Member in Truss
  • · Replies 2 ·
Replies
2
Views
2K
Statics: Statically Indeterminate Unstable Plane Truss
  • · Replies 4 ·
Replies
4
Views
6K
Undergrad How Much Force Do Your Abs Exert During a Hanging Leg Raise?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad How Does Changing Mass and Spring Force Affect Watch Oscillators?
  • · Replies 11 ·
Replies
11
Views
2K
Solving Truss Homework: Finding All Forces in Members
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Modeling a Bottle Rocket: Analyzing the Maximum Altitude
  • · Replies 4 ·
Replies
4
Views
6K
Solving Truss Equations: Find Force in Members EA, EF and EG
  • · Replies 1 ·
Replies
1
Views
2K
Solving Truss Structures: Troubleshooting and Equilibrium Equations
  • · Replies 3 ·
Replies
3
Views
3K
What Are the Forces in Truss Members BH and HG?
  • · Replies 5 ·
Replies
5
Views
2K