This is true in this specific case because there are no horizontal loads. However, note that there will be a force in that member as soon as any horizontal load is introduced (the right support is locked in place and can therefore also support horizontal forces).dbag123 said:
Zero force members are structural members that do not experience any force or stress when the structure is loaded. They are typically found in truss structures and are important for maintaining the stability and integrity of the structure.
To identify zero force members, you can use the method of joints or the method of sections. In the method of joints, you look for members that only have two non-collinear forces acting on them. In the method of sections, you look for members that are cut by a section and have no external load or reaction acting on them.
Checking for zero force members is important because they can significantly affect the overall stability and strength of a structure. If these members are not accounted for, it can lead to incorrect analysis and potential failure of the structure.
The process for optimizing 4 zero force members involves identifying the zero force members, removing them from the structure, and then analyzing the remaining structure to determine if it is still stable and can support the intended load. If the structure is not stable, additional members may need to be added to ensure its stability.
Yes, a structure can have more than 4 zero force members. The number of zero force members in a structure depends on the complexity and design of the structure. It is important to check for and account for all zero force members in order to accurately analyze the structure.