Staircase in order to earthquake should not be set in the housing at the end and corner, should be set where?
Placed in the building of the internal space, is to do the program, try not to stairs on the edge of the building only, there is no specific requirements where to put, by the design staff to consider, pay attention to the fire evacuation it wants.
However, generally not very high or what is particularly important to the building, on the edge or corner can also be, after all, not on the edge, after entering the building but also people take a road to the stairs.
Second, the staircase components seismic capacity calculation requirements:
1. The frame columns and frame beams connected to the stairway shall be included in the additional internal forces (especially axial and shear) of the stairway members;
2. The frame column, frame beam, which is not connected to the staircase member, can be designed according to the case where the staircase component is not included;
3. Ladder board should be included in the impact of seismic axis and in-plane bending moment, according to eccentric tension, eccentric compression components, according to double reinforcement design;
4. The resting platform beam connecting the risers and frames shall be included in the influence of the seismic axial force, and the bending beam or bending members shall be designed. The platform beams supporting the risers shall be designed according to the bending and bending members;
5. The ladder of the platform beam should be designed with the axial force of the platform beam as the shear force.
