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RE: Runway beam[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: RE: Runway beam
- From: "Blomberg, Paul" <Paul.Blomberg(--nospam--at)Jacobs.com>
- Date: Thu, 4 Feb 1999 13:43:00 -0800
I normally provide the expansion joint in between beams and allow the crane rail to span over the expansion joint. Then, within a few feet of the structural steel expansion joint, I cut a 60 degree angle on the rail to allow the expansion there. The angle cut allows the expansion but maintains positive bearing between the crane wheel and crane rail. It's an old detail. There may be better approaches. Paul F. Blomberg Jacobs Engineering Group Phoenix, AZ ---------- From: Stan Mulder To: seaint(--nospam--at)seaint.org Subject: Runway beam Date: Thursday, February 04, 1999 12:15PM What details are suitable for overhead crawl beam expansion joints. Usually gaps at joints should be kept as small as possible (2 mm or say 1/8 ins) to enable the trolley wheel to pass smoothly over the joint. Sometimes it is necessary to use a long crawl and introduce expansion joints. Possible cutting the bottom flange at 45 degrees and reinforcing the bottom flange. How big can this gap be (3/8 ins) ? Is there some way of making the gap as large as 1 ins ? Thanks..
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