2S.I. is an Italian company with more than 20 years experience in software  development in the civil  engineering field, in particular for structural and geotechnical engineering.

The potential of the program is increased also thanks to the multiple collaborations with university and qualified organization in the field of seismic engineering such as EUCENTRE and NAFEMS.

DESIGNS reinforced concrete, steel, masonry, reinforced masonry, timber, XLAM, semi-prefabricated beams, large lightly reinforced walls, FRP reinforcements for masonry and reinforced concrete structures, steel and concrete reinforcement for existing concrete structures.
CHECKS existing buildings, insulators, soil-structure interaction, fire resistance.
APPLIES Italian regulations, Eurocodes.
MANAGES elasto-plastic elements, geometric non-linearity, equilibrium stability, construction phases, pushover analysis, dampers.
DRAWS reinforced concrete, steel and timber structures.
GENERATES calculation report, geotechnical report, maintenance plans.
DETAILS floors, stairs, roofs, elevator cores, masonry hoops.

PRO_SAP modules might be purchased individually for maximum customization.

Pro_Sap is available in two versions:

  • Professional: Without nodes number and geometry limitation.
  • Lite: Allows a maximum of 500 nodes.

Futhermore, PRO_SAP is available in freeware version (it can be used for professional purposes and create drawings and calculation reports) such as:

  • Entry: (Modules 1,2,3,4,7) Free version till 150 nodes;
  • E-Time: (All modules) Completely free on weekend and from 8 pm to 8 am (Central European Time (CET), UTC +1) during weekdays;
  • Start-Up: Full version, exclusively for academic use and research.