On the 22G steel bar flat atlas, why is the lap and anchorage of columns, walls and beams divided into seismic and non-seismic resistance, but the floor slab and foundation are all considered as non-seismic resistance?
Generally, the building only calculates the seismic horizontal force, and the lateral force resistance components such as columns, walls and beams are mainly borne by the seismic horizontal force, so the columns, walls and beams belong to the seismic components; the slabs, stairs and foundations (due to the lateral limitation of the soil) do not bear the seismic horizontal force, and they are all non-seismic themselves, so they do not need to be considered according to the seismic resistance, and the seismic resistance of these components is not considered when the whole structure is calculated.
■The floor slab is not earthquake-resistant, and no seismic structural measures are required, except for the slab of the beam-plate conversion layer:
■The foundation is not earthquake-resistant, so there is no need to take seismic structural measures
■Stairs are divided into types, and some need to take seismic structural measures, please refer to the article "Which types of stairs take seismic anchoring measures + seismic reinforcement"
In the 22G101-2 atlas, stairs include 14 types of cast-in-place concrete slab stairs: AT, BT, CT, DT, ET, FT, GT, ATa, ATb, ATC, BTb, CTa, CTb, DTb
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