# How Do You Calculate Forces in a Truss System?

• genelle
In summary, the problem is to determine the forces in members AC, BC, BD, CD, and GF of a truss and indicate whether they are in tension or compression. The person asking for confirmation of their answers is advised to show their work so that assistance can be provided if needed. It is mentioned that the problem is statically determinate and solving it joint by joint will result in a final check. The first step is to obtain the reaction components.
genelle
Please answer the following problem. You can post the answers here, I just want to confirm if my answers are correct. This is a truss analysis problem.

Problem:

Determine the forces in members AC, BC, BD, CD and GF for the truss shown in the figure. Indicate if the member is tension or compression. (F and E are pins)

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It is best for you to show your answers and how you arrived at those answers, so we can better assist if indeed assistance is necessary. As a general rule, we don't give out answers.

This is a statically determinate problem. If you solve it, joint by joint, then the last joint will be a check. You don't then need us to check it. Start by getting the reaction components.

## What is a truss analysis problem?

A truss analysis problem is a mathematical problem that involves analyzing the forces and stresses within a truss structure. Trusses are used in many engineering and architectural designs, and understanding the forces within them is important for ensuring their stability and safety.

## What are the steps involved in solving a truss analysis problem?

The steps involved in solving a truss analysis problem include: identifying the external forces acting on the truss, drawing a free body diagram, determining the reactions at the support points, applying the equations of equilibrium to find the internal forces in each member, and checking for stability and safety.

## What types of forces are typically present in a truss structure?

The forces present in a truss structure include tension, compression, and sometimes shear. Tension forces pull on a member, while compression forces push on a member. Shear forces act parallel to the surface of the member.

## What are some common assumptions made in truss analysis?

Some common assumptions made in truss analysis include: all members are connected at their ends by frictionless pins, all loads act only at the joints, and the weight of the truss itself is negligible.

## What are some real-world applications of truss analysis?

Truss analysis is used in a variety of industries, including construction, aerospace, and bridge engineering. It is used to design and analyze structures such as buildings, bridges, cranes, and even roller coasters. Truss analysis is also commonly used in the design of roof and floor systems in buildings.

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