Steel Structure Symmetrical Section Problem

[Olcay AYDIN]

In the attached project, the entire system is symmetrical including the loads. I created the analysis model as two axes followed by copying them. I think even possible bugs in the system including conflict checks are symmetrical. As can be seen in the annex, while all scissors in the same two axle ranges are sufficient, there is a strength problem (axial load resistance problem) for symmetrical scissors. Despite re-examining the whole project, I could not reach a conclusion. There is a conflict problem in the project, but I don't think it's related to it. I look forward to your help in this matter...

 

[oguzcan]

Hello there; I reviewed your project. When I look at the system, I see that the diagonals are not completely symmetrical. When looking at the diagonals, 2 diagonals seem a little more than the other. Here, both of the narrow diagonals have come to the left. I tried to show it by marking in the attached picture. Apart from this, special attention should be paid to the crosses and stability beams coming to the nodal points in scissor systems. When the cross command is used on scissors, the program automatically defines the crosses to coincide with the nodal points. The stability beams you place throughout the entire structure need to be split at each node. In this project, the stability beams are defined as one piece. To capture the node of the scissors, you can define it by holding the "CTRL" key or activate the "advanced capture" command. Best regards...

 

[Olcay AYDIN]

Hi; I looked at your project. When I look at the system, I see that the diagonals are not completely symmetrical. When looking at the diagonals, 2 diagonals appear a little more than the other. Here, both of the narrow diagonals are on the left. I tried to show them by marking them in the attached picture. Apart from that, special attention should be paid to the crosses and stability beams in truss systems. When the cross command is used on trusses, the program automatically defines the crosses to coincide with the joint points. The stability beams that you place throughout the entire structure must be divided at each node. In this project, the stability beams are used as one piece. defined. To capture the node of the scissors, you can define it by holding down the "CTRL" key or activate the "advanced capture" command. Best regards...

It's always a logical solution to have another eye look. For your interest and kindness thank you. Good work...