Solvers and modules

Intuitive GUI contains a wide range of user-friendly tools to generate, analyse and evaluate computer models of arbitrary structures. When solving the problem, the user works in this environment at all stages from generation of design model up to evaluation of analysis results. It is also possible to switch to any selected mode and obtain data from any stage as well as preview windows from several modes simultaneously.

3D information model available in SAPFIR-3D is converted into design model. Then the user could carry out analysis and design for this design model in LIRA-SAPR program. It is possible to import 3D and 2D models generated in other graphical software: Revit, AutoCAD, Allplan, Tekla, ArchiCAD, etc.

Analysis & design of reinforced concrete (RC) structures: options to determine areas of reinforcement for columns, beams, slabs, diaphragms and shells according to ultimate and serviceability limit states. Building codes of different countries are supported. Drawing of beams and columns are presented after analysis and can be saved as DXF files.

Analysis & design of steel structures: options to select sections of elements in steel structures (such as truss, column, beam) and to check specified sections and joints according to building codes.

Analysis & design of separate reinforced concrete (RC) bar or plate element. Design model of an element as well as applied loads may be either imported from ARM-SAPR module or defined by the user.

Steel tables with rolled and welded shapes may be either generated or modified.

Structural model of the large panel building is generated. Analysis is carried out and then you could obtain parameters of the stress strain state for elements of the large panel building. Constantly enlarged and editable library of joint types is provided. This library ensures adaptability of the system to new types of large panel buildings.

Stiffness parameters are computed: flexural, torsional, shear and warping for mono- and multi-material arbitrary sections. Sections may be solid, thin-walled and combined. Strip elements and rolled shapes may be used.

Analysis of masonry reinforcing structures in LIRA-SAPR program supports the following building codes: SP 15.13330.2012, SNIP II-22-81 and DBN B.2.6-162.

Analysis of composite structures in LIRA-SAPR. SP 266.1325800.2016 Chapter 7 is supported: analysis of RC structures with stiff reinforcement and analysis of pipe concrete structures.

Problems with the same topology (nodal coordinates, FE model, geometry of sections) may be merged. Problems may differ in load cases, stiffness and boundary conditions.

Computer simulation for erection of the structure. Changes in design model are traced: applying and removing of assemblage loads, imposing and removing of internal restraints.

Analysis of bridge structures (beam, arc, guy, suspension). Influence and surface lines of forces may be obtained in the specified section from moving load.

Unlike dynamic analysis realized in linear solver based on methods of spectral analysis, this module provides time history analysis of nonlinear deformed structures, e.g. structures with one-way restraints, physically nonlinear systems that have σ-ε relations in the shape of Prandtl diagram.

Module for design of RC structures. Option to obtain working drawings of reinforcement, specification of reinforcement, bill of materials and list of elements for every floor slab, diaphragm, column and beam.

Complete set of working drawings KM (steel structures) may be obtained: erection drawings, list of elements, drawings of joints, necessary notes and specifications.