1.0.1 This specification was made for the purpose to make the structure design of the chemical and petrochemical constructions meet the existing codes, namely the design principle of structure limit state based on probability theory, and the requirements of safety and usability and economic feasibility.
1.0.2 This specification is applicable to the structure design of the chemical and petrochemical constructions and not applicable to the loading design based on the pipe frame and independent equipment.
1.0.3 This specification complies with the principle and specification of "Unified Standard Reliability Design of Building Structures"(GB 50068-2001) and "Load Code for the Design of Building Structures"(GB 50009-2001) and is the supplement and incarnate of the application to the chemical and petrochemical constructions of "Load Code for the Design of Building Structures" (GB 50009-2001).
Seismic action still shall meet the requirements of "Code for Seismic Design of Buildings" (GB 50011).
1.0.4 This specification mainly aims at the direct effect (load) and partial indirect effect and the application of this specification shall be based on the loading condition proposed by the dominant profession and take this specification as the minimum adopted value.
HG/T 20674-2005 The following standards are cited: