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runway thru building expansion joint
i have two underhung bridge crane runways each side of a building expansion joint that are not currently connected together. the owner desires that we hook them together.
what detail is normally used so that the crane wheels do not bump across this 1" joint?
find a job or post a job opening
the better way is to change the runway hanging detail to accomodate expansion/contraction of the building frame.
i agree this would be the way if designing a new system but it is not practical to do this on this existing system.
weld the two rails into one continuous rail,(which takes away the expansion close to the rail). revise rail hanger details near the expansion joint to either long slotted holes or hanging supports which may sway in the longitudinal axis.

2009-09-15, 07:45 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	runway thru building expansion join runway thru building expansion joint i have two underhung bridge crane runways each side of a building expansion joint that are not currently connected together. the owner desires that we hook them together. what detail is normally used so that the crane wheels do not bump across this 1" joint? find a job or post a job opening the better way is to change the runway hanging detail to accomodate expansion/contraction of the building frame. i agree this would be the way if designing a new system but it is not practical to do this on this existing system. weld the two rails into one continuous rail,(which takes away the expansion close to the rail). revise rail hanger details near the expansion joint to either long slotted holes or hanging supports which may sway in the longitudinal axis. __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]