STAAD.Pro HelpDesignD. Steel DesignD. Chinese Steel Design D. Chinese Steel Design The SSDD application for steel design to the Chinese code is integrated as the Chinese Steel Design workflow. D. To open a model in the Chinese Steel Design workflow To design steel members per the Chinese GB 50017-2017 code, use the following procedure.D. To add a new solution setTo add a new set of parameters in a solution set for comparing different designs, use the following procedure. D. To add a parameter set To a set of design parameters to one or more members, use the following procedure. D. To assign secondary members To assign members to be considered as secondary members per the Chinese steel code, use the following procedure.D. To specify brace angle threshold valuesTo specify angle values used as the limit when auto-detecting brace members, use the following procedure.D. To add a custom material definitionTo add a user-defined steel material definition for use with the Chinese Steel Design workflow, use the following procedure.D. To assign performance design member attributes To assign additional member and structure attributes used for performance design, use the following procedure.D. To perform steel design per the Chinese code To perform steel design per the GB 500017 code, use the following procedure.D. Chinese Steel Design Technical Reference Parent Topic: D. Steel Design