Forums >> Revit Building >> Technical Support >> Revit Architecture 2008 Multi Level Stairs - Complex Building

kirstyv

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Joined: Mon, Sep 3, 2007
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This one has had us stumped for weeks...

We are working on a 22 storey building with varying level heights (ie basement levels and mezzanine floors).  Our problem is with the fire stiairs.  We can't use multi level stairs because of the variation in levels and if we create stairs from level to level, we can't have landings after the flight of stairs.  Creating floors as landings has been fine for sketch design but as we move into design development and doccumentation creating landings using floors there is this issue of the last going being at the same level as the landing, which is obviously not the way stairs are constructed.  Generally the last riser is to the landing height.  The only way to solve this is to overlap the landing (created using floors) with the last going, which is then a misrepresentation on the plan.

 Has anyone successfully created firestairs in a complex building?

Thanks 

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nortoncad

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Joined: Sun, Jan 13, 2008
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Kirsty,

You can use multi level stairs if your using the calculation rules, but I'd advise doing each run individually. Precast concrete stairs are manufactured with a going at the top that laps over the floor slab. Some open tread designs don't have this requirment. There is an option to finish the stairs with or without a riser.

If the landing & stair detail looks odd, just place a filled region over the junction. Then draft, or import a CAD detail, over the top of the junction.

As a good design practice I try to stagger stair start points by one going at any landing. In doing this the handrails don't clash as bad at the landing levels.

Regards,

Mark Norton

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Regards,

Mark Norton

Architectural Design Manager/Application Specialist for Revit & AutoCAD/Effective Project Crisis Managment/3D CAD modeling

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FrankyDHalliday

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Joined: Sat, Dec 3, 2011
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Does checking finish with riser correct the issue in plan where having the stair terminate at the top level brings the stair arrows in plan one going to far past the end of the last riser?

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