Download 2si PRO_SAP 26.03.2 Enterprise – Advanced Structural Engineering Software for Professional Design and Analysis

PRO_SAP 26.03.2 Enterprise, developed by 2S.I. Software e Servizi per l’Ingegneria, is a comprehensive structural engineering suite for modeling, analysis, design, and verification of buildings. The software supports multiple structural materials and analysis methods, making it a versatile solution for professional engineers.

PRO_SAP is part of the 2S.I. software ecosystem, which recently joined the international Rocscience Group. The 2026 release marks a significant transition in the product lineup, with the discontinuation of free Entry and e-TIME versions to focus on professional editions with full technical support and regulatory updates.

PRO_SAP features a 64-bit solver (e_SAPx64) for efficient handling of complex models and large structural analyses. It integrates with BIM workflows through IFC import/export and offers direct links to specialized tools such as IDEA StatiCa for steel connection design.

Primary Users

PRO_SAP 26.03.2 Enterprise is designed for structural engineers, civil engineers, and engineering firms specializing in building design and structural analysis. It serves professionals who:

  • Design and verify reinforced concrete, steel, masonry, wood, and XLAM structures

  • Perform seismic analysis and structural assessments for new and existing buildings

  • Generate executive drawings and detailed calculation reports

  • Manage BIM workflows through IFC file exchange

  • Evaluate existing structures for safety and compliance with current codes

Key Features & Capabilities

Structural Modeling and Analysis

  • Multi-Material Design: Reinforced concrete, steel, masonry (ordinary and reinforced), wood, XLAM, and mixed lattice beams

  • Element Library: Frame, beam, column, membrane, wall, shell, solid elements, floors, foundations (footings, mats, piles)

  • Analysis Methods: Static linear analysis, dynamic seismic analysis (response spectrum), pushover analysis, nonlinear step analysis

  • Elasto-Plastic Elements: Geometric nonlinearity, equilibrium stability, construction phases analysis

  • Seismic Classification: Automatic seismic classification of buildings according to Italian guidelines

Steel Connection Design

  • Integrated connection design module for steel structures

  • Direct export to IDEA StatiCa for detailed code-checking and optimization of steel connections

  • Supported connections: Base plates, beam-column joints, continuity joints, beam-to-beam connections, bolted and welded details

BIM and Interoperability

  • IFC Technology: Import, update, and export IFC files for BIM workflows

  • Third-Party Integration: BIM link with IDEA StatiCa Checkbot for steel connection management

  • Data Synchronization: Full synchronization of beams, cross-sections, and internal forces with external tools

Documentation and Reporting

  • Automatic Reports: Calculation reports, geotechnical reports, maintenance plans, and cost estimates

  • Executive Drawings: Detailed drawings for RC and steel structures, including floor carpentry, stairs, and elevator cores

  • Fire Resistance Verification: Analytical verification for concrete, steel, and wood elements according to UNI EN standards

Available Modules

PRO_SAP is built on a modular architecture, with each module available separately for maximum customization:

  • Base Module: Modeling and static analysis; BIM IFC import/export; static seismic analysis; calculation reports

  • Module 1: RC element design (beams, columns, walls, shells) with SLU and allowable stress methods

  • Module 2: Steel element strength and stability verification

  • Module 3: Dynamic seismic analysis with response spectrum

  • Module 4: Executive drawings for RC elements

  • Module 5: Steel connection design with drawings

  • Module 6: Nonlinear analysis and pushover analysis

  • Module 7: Masonry and wood element verification

  • Module 8: Fire resistance verification

  • Module 9: Geotechnical verification and Winkler spring constants

  • Module 10: Advanced technologies (reinforced masonry, XLAM, FRP reinforcements)

  • Module 11: 64-bit e_SAP solver (e_SAPx64)

What’s New in PRO_SAP 26.03.2 Enterprise

The 26.03.2 Enterprise version represents a major evolution in the PRO_SAP product line, emphasizing professional-grade features and compliance:

Product Line Transition

Discontinuation of Free Versions: 2S.I. has announced the phase-out of the Entry and e-TIME free editions. Key deadlines include:

  • From May 1, 2026: Entry and e-TIME versions will no longer be included in new installation packages, and technical support ceases for these editions

  • From July 31, 2026: PRO_SAP e-TIME will cease to be operational and cannot be launched

Implications for Professionals: Users of free versions will no longer receive regulatory updates or technical support. All existing calculation files remain fully compatible with active commercial editions.

Enterprise Edition Advantages

The Enterprise version ensures:

  • Unrestricted usage without time limitations

  • Continuous regulatory updates (NTC compliance)

  • Direct access to specialized technical support

  • Full compatibility with existing project files

Enhanced BIM and Integration

Strengthened BIM capabilities through improved IFC workflow and integration with IDEA StatiCa for steel connection design.

64-Bit Solver Performance

Continued optimization of the e_SAPx64 solver for faster processing of complex structural models.

ading conditions.