cgstrucg
Structural
- Mar 21, 2018
- 135
Hello,
I am designing a platform-stair system on a roof deck and I was going through the catalog platform manufacturer provided us to see the post to deck support types they have. Please see the attached image and you can see I have made 2 blue circles. If you see close to the first circle from the left, there is a perforated hollow pipe-plate system bolted to a rubber pad. And in this system, the posts of the platform will go into that perforated hollow pipe. I was wondering what type of releases should I give to this connection. I thought that if the post itself is going into the perforated hollow pipe-plate system then it is not allowed to bend and not even move and hence it is a fixed connection. Can someone confirm if my thought process is right?
Also, if you look at the first blue circle from right, it looks like the stair stringer is allowed to move in one direction rest every other direction is fixed. Is this true according to you?
Finally, I am going to remove rubber pads and going to provide some different type of reinforcements below the plates, but if I would have considered these pads then is the purpose of using these rubber pads just to distribute the concentrated load over an area or will that rubber pad have any other spring effect. Just asking for knowledge purpose.
Thanks
I am designing a platform-stair system on a roof deck and I was going through the catalog platform manufacturer provided us to see the post to deck support types they have. Please see the attached image and you can see I have made 2 blue circles. If you see close to the first circle from the left, there is a perforated hollow pipe-plate system bolted to a rubber pad. And in this system, the posts of the platform will go into that perforated hollow pipe. I was wondering what type of releases should I give to this connection. I thought that if the post itself is going into the perforated hollow pipe-plate system then it is not allowed to bend and not even move and hence it is a fixed connection. Can someone confirm if my thought process is right?
Also, if you look at the first blue circle from right, it looks like the stair stringer is allowed to move in one direction rest every other direction is fixed. Is this true according to you?
Finally, I am going to remove rubber pads and going to provide some different type of reinforcements below the plates, but if I would have considered these pads then is the purpose of using these rubber pads just to distribute the concentrated load over an area or will that rubber pad have any other spring effect. Just asking for knowledge purpose.
Thanks
