Steel support pre pressure construction should meet the requirements
The slenderness ratio of the support member and the thickness ratio of the plate should be based on the different fortification intensity, according to the current national standard "code for seismic design of buildings" GB 50011.4 support can be used with the original set of steel reinforced concrete members and reliable connection, and measures should be taken to support the reliable seismic force is transferred to the foundation.5 new steel support can be used for the calculation of both ends hinged, and only assume the role of earthquake.
The shape of the support can be cross shaped or herringbone, the horizontal angle of support should not be greater than 55 degrees
The arrangement of the support shall be beneficial to reduce the irregularity of the structure along the plane or the vertical; the support spacing shall not exceed the maximum spacing of the wall in the frame wall structure
