Truss Analysis Using Joint Method: Neglecting Truss-Member Weight

Question:

Why do we usually neglect the weight of truss members in a truss analysis using the joint method?

Options:

True

False

Answer:

True

When performing a truss analysis using the joint method, it is common practice to neglect the weight of truss members. This assumption is made to simplify the analysis process and is based on the belief that the weight of the truss members is evenly distributed along the entire structure. This allows for the calculation of internal forces without significant impact from the member weight.

However, it is important to note that in certain scenarios where the member weights are substantial compared to the loads or where their distribution is highly non-uniform, this assumption may not be accurate. In such cases, the weight of the truss members would need to be taken into consideration to ensure accurate results.

By neglecting the truss-member weight in most cases, engineers can streamline the analysis process and focus on determining the internal forces within the truss structure. This simplification helps in quickly assessing the structural integrity and overall stability of the truss system.