RISA-2D is described as 'Superior structural engineering software for analysis and design by RISA Technologies, Inc'. There are more than 25 alternatives to RISA-2D for Windows, Online / Web-based, Mac and Linux. The best alternative is midas Civil. It's not free, so if you're looking for a free alternative, you could try SkyCiv Structural 3D or SkyCiv. Other great apps like RISA-2D are RISA-3D (Paid), midas Gen (Paid), Etabs (Paid) and SAP2000 (Paid).
Three dimensional bar structure project with steel and wood sections, including foundations (pad foundations, pile caps, strap and tie beams) and bracing systems against lateral loads, allowing ties that work only in tension. Joint and baseplate design for metallic structures.
S-FRAME Software for Structural Engineers Trusted by thousands of structural engineers worldwide for over 30 years, S-FRAME is the design and analysis software of choice for moment frames, braced frames, trusses, bridges, office and residential buildings, skyscrapers...
PROKON® Structural Analysis and Design is a suite of over forty structural analysis, design and detailing programs. The first PROKON programs were developed in 1989, and today PROKON is used worldwide in over eighty countries.