Beam deflection limit exceeded

sara

New Member
hello, I have a barn project in my hand, the lovers do not save, I did not take the lovers into account, but when I receive the report, I get a warning that the deflection limit has been exceeded, how can I fix this situation, I would appreciate it if you could help me, thanks in advance, good work to everyone (if there are other mistakes I have made, I would be glad if you warn me)
 
Hello, In your project, the span between 13-14 axles is around 10m. It is normal for a UPN120 purlin to be insufficient at a serious span of 10m. At the same time, since the purlins work as simple beams, their deflection will be too much. If you are going to use this section for lovers, you may need to create another carrier frame between 13-14 axes. In industrial buildings, the carrier systems are generally formed as a moment frame in the ridge plane and as a braced frame in the plane perpendicular to the ridge plane. In the project, which is formed as a moment frame, a moment-transmitting joint is connected to the weak axes of the columns. In this way, the carrier system you choose will not be efficient. Therefore, you need to change the direction of the columns. In this way, the combinations will also become suitable. Apart from these, there are no horizontal and vertical diagonals in the system. If you create the necessary braces and stability elements, the sections of your structure will become much more suitable. Best regards...
 
THANK YOU SO MUCH, I'M CHANGING THE PROJECT TAKING CARE OF WHAT YOU SAY. I HOPE THE DIFFICULTIES DO NOT REPEAT THANKS AGAIN THANK YOU GOOD WORK...
 
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