1. Splicing of Steel Structures with Uniform Cross-SectionsFactory Splicing of Steel StructuresTension Members: Direct butt welding (Fig. a) or splice plates with fillet welds (Fig. b) may be used. For direct butt welding, the weld quality must meet Grade I or Grade II standards; otherwise, splice plates with fillet welds must be employed.Compression Members: Direct butt welding (Fig. a) or splice plates with fillet welds (Fig. b) may be used.When splice plates and fillet welds are adopted, the flanges and web of the member should be equipped with separate splice plates and welds to ensure direct and uniform force transmission, avoiding excessive…