Free Download CSI SAP2000 27.0.0 (3505) | 1.1 Gb Computers and Structures, Inc. (CSI) is pleased to announce the availability of SAP2000 27.0.0 (3505) is general-purpose civil-engineering software ideal for the analysis and design of any type of structural system SAP2000 v27.0.0 introduces expanded meshing capabilities with new user‑defined mesh option for areas and solids, allowing a user controlled mesh to be imported from DXF. Concrete frame design now supports ACI 318‑25, EN 1992‑1‑1:2023, and TCVN 5574:2018, and steel frame design supports CSA S16‑24 while CSA S16‑19 steel design adds th