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??Reinforcing DL's in compression??[Subject Prev][Subject Next][Thread Prev][Thread Next]
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- Subject: ??Reinforcing DL's in compression??
- From: "Khosrownia, Ghassem NWS" <Ghassem.Khosrownia(--nospam--at)NWS02.usace.army.mil>
- Date: Thu, 8 Oct 1998 08:05:16 -0700 <Ghassem.Khosrownia(--nospam--at)NWS02.usace.army.mil>
I have a consultant who proposes to reinforce an underdesigned DL truss diagonal by welding additional plate to their projecting legs. The area of steel required is based on the required additional capacity needed. For welding design, the consultant is using the full axial load in the combined section in order to determine the length of weld. While this may produce conservative results, I feel like the approach is not logical. I think the plate should be attached to the hosting DL's in such a manner to be stable in compression and to be able to contribute the lacking strength. If the plate should provide 10 kips of additional capacity, then its weld spacing should be determined based on stability of the plate in compression, and allowable compressive stresses associated to that. What do you think? I appreciate all comments. Ghassem.
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