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Good Day,
I am designing a floating stair, see attached drawing from architect. The flange channels used to form the treads must fix into a 230mm concrete wall. Now this must be a fixed connections, and no bolts and nuts can be visible. I am thinking of leaving openings in the wall (not that easy to do accurately as home builders can be quite unrefined at times) and then have an endplate welded to the end of the channels. This then gets fed through the hole in the concrete wall which will be oversized. The space between the steel channel and the wall can then be packed with a lean mix concrete. This should give a fixed connection to the cantilever.
Is there a better way this connection can be detailed? The easiest would be for the wall to be cast and the sections then post fixed, that way the location of the openings mentioned above is not important, and the tread locations can be neatly set out on the wall surface. But now how does one make a fixed connection to the wall that can be hidden or covered afterwards?
Thanks
I am designing a floating stair, see attached drawing from architect. The flange channels used to form the treads must fix into a 230mm concrete wall. Now this must be a fixed connections, and no bolts and nuts can be visible. I am thinking of leaving openings in the wall (not that easy to do accurately as home builders can be quite unrefined at times) and then have an endplate welded to the end of the channels. This then gets fed through the hole in the concrete wall which will be oversized. The space between the steel channel and the wall can then be packed with a lean mix concrete. This should give a fixed connection to the cantilever.
Is there a better way this connection can be detailed? The easiest would be for the wall to be cast and the sections then post fixed, that way the location of the openings mentioned above is not important, and the tread locations can be neatly set out on the wall surface. But now how does one make a fixed connection to the wall that can be hidden or covered afterwards?
Thanks