The invention belongs to the technical field of 
pipe whip restraint 
steel structures of main power houses of 
nuclear power station conventional islands, in particular to a production process method of the 
pipe whip restraint steel structure of the main power house of the 
nuclear power station conventional island, which comprises the 
lofting process, the marking-off and scribing process, the 
cutting processing process, the bevel 
processing process, the hole-making process, the correction process, the 
polishing surface, the material splicing process, the pre-splicing process of a steel member, the 
assembly process, the 
processing process of a friction surface, the 
welding process of the steel structure and the anti-slip test of the friction surface of the steel member before leaving a factory, sandblasting, derusting and 
coating of a base coat are carried out in the factory, and the production of the steel structure is divided into the production processing of a welded H-shaped steel column, the production of a steel beam, the 
assembly and the 
welding of a support part, the production of a combined steel beam, the 
assembly and the 
welding of a girder box body and an inclined support below the girder box body, and the assembly and the welding of a 
pipe whip restraint key. The production process method can improve the drilling precision, utilize a 
numerical control planar drilling 
machine to complete the drilling on a 
gusset plate, determine a variety of processing processes and 
welding process parameters, and ensure the dimension of the member after the assembly and the smooth proceeding of field installation.