Use of slotted holes in purlins for roof movement?
Use of slotted holes in purlins for roof movement?
(OP)
Friends
There is this practice: A roof is elevated from a group of RC blocks by steel frames. To facilitate movement of the roof, some designers simply use slotted holes at purlin connections, instead of actually
isolating the roof supporting frame at the RC joint. This is usually done to avoid placing two columns side by side at the interface between neighboring RC blocks. And some even slot the roof bracing.
I find this disturbing. I dont trust slotted holes except for erection purposes. What is your opinion?
Thanks in advance.
respects
IJR
There is this practice: A roof is elevated from a group of RC blocks by steel frames. To facilitate movement of the roof, some designers simply use slotted holes at purlin connections, instead of actually
isolating the roof supporting frame at the RC joint. This is usually done to avoid placing two columns side by side at the interface between neighboring RC blocks. And some even slot the roof bracing.
I find this disturbing. I dont trust slotted holes except for erection purposes. What is your opinion?
Thanks in advance.
respects
IJR






RE: Use of slotted holes in purlins for roof movement?
RE: Use of slotted holes in purlins for roof movement?
RE: Use of slotted holes in purlins for roof movement?
As for slotting bracing I don't see how this would work and seems like it could be handled better.
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RE: Use of slotted holes in purlins for roof movement?
respects
ijr