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Question:

Multi storey steel frame structure displacement between layers

The displacement of the H/500 steel structure design code page 121 A.2 multilayer framework, the relative displacement between layers of multilayer frame h/400. With the gauge gauge 5.5.1 multi, high-rise steel structure 1/300.I would like to ask the multi-storey frame structure of the inter story displacement in the end how to control it?

Answer:

Displacement in two cases:One is the seismic control by 1/250One is the wind, according to 1/400 control"Steel regulations" and "Regulations" said the top can be relaxed, the industrial plant can be further relaxed.But there is no specific how much can be relaxed.
The above "anti regulation" is the 08 edition. The new 10 edition of the "Regulations" provisions are 1/250, the provisions of the further explanation that this limit can also be relaxed.
Handsome guy, you are to give points ah ~!"Steel structure design code" A.2.1.3 "multi-storey frame structure displacement limit value of h/400""Seismic design code for buildings" 5.5.1 "multi storey and high-rise steel structure elastic interlayer displacement angle limit is 1/300"

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