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45 story tower crane attachement to concrete building
should the assembly that hold the tower crane strut attachment to a concrete slab be anchored to the concrete slab with double embed steel plates (both sides of slab) with thru bolts installed before casting concrete? or should it be anchored to the concrete slab with steel plates (on both sides-sandwiching the slab) installed after the slab is cast with thru bolts installed thru sleeves in the concrete slab?
to give an idea, say:
slab is 8" thick
plates are 3/4" thick with (6) 1" diam. bolts
thanks,

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2009-09-07, 08:48 AM	#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	45 story tower crane attachement to concrete building 45 story tower crane attachement to concrete building should the assembly that hold the tower crane strut attachment to a concrete slab be anchored to the concrete slab with double embed steel plates (both sides of slab) with thru bolts installed before casting concrete? or should it be anchored to the concrete slab with steel plates (on both sides-sandwiching the slab) installed after the slab is cast with thru bolts installed thru sleeves in the concrete slab? to give an idea, say: slab is 8" thick plates are 3/4" thick with (6) 1" diam. bolts thanks, __________________ 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]