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RE: Joists welded to supports[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: RE: Joists welded to supports
- From: "Russ, John P" <JPRh(--nospam--at)pge.com>
- Date: Fri, 20 Sep 2002 09:15:52 -0700
In addition to using screws to attch the deck, you may also want to consider Hilti pins. They are used in many places where weather may not allow an adeqaute window to weld the deck down.
There are some issues you need to consider when using these pins which inlcude:
1. Cost - The contractor will need to obtain the appropriate pneumatic guns and the compressors used to set the pins, although Hilti will sometimes allow a contractor to use their equipment. The contractor will also need to train his employees, although the Hilti representatives will do so for free. The cost of the pins has been the largest issue. On one job with 140000 SF of deck, the pin prices were estimated to be $25-30 K vs a welding rod cost of $1K.
2. Shear capacity - A pin connected deck will have reasonable shear values, but they are less than for a comparable welded deck.
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