|
|
发表于 2009-6-5 20:20
|
显示全部楼层
来自： 中国上海
这里只给您提供一种情况，csr里面的。其他的你可以看看相关规范，有的是需要计算的！
Manholes and lightening holes in double skin sections not requiring
reinforcement
Where openings are cut in the web and are clear of high stress areas, reinforcement
of these openings is not required provided that the depth of the opening does not
exceed 50 percent of the web depth and is located so that the edges are well clear of
cut outs for the passage of local support members.
Examples of high stress areas include:
(a) in vertical or horizontal diaphragm plates in narrow cofferdams/double plate
bulkheads within one-sixth of their length from either end
(b) in floors or double bottom girders close to their span ends
(c) above the heads and below the heels of pillars.
Where larger openings than given by 3.5.2 or 3.5.3 are proposed, the arrangements
and compensation required will be specially considered. |
|
发表于 2009-6-4 18:25
提升卡
变色卡
楼主
