Hainan Steel tell you: the steel support requirements to be met? 1. Hainan steel support member may be connected to high-strength bolts or welded connections; 2. waist beam connecting node should be set in the vicinity of the support points, and should not exceed the support spacing of 1/3; 3. The steel beam waist and row of piles should be adopted between the diaphragm wall is not less than C20 fine aggregate concrete infill; connecting node steel and steel support beam waist should be located stiffeners.