New systems: Large Panel Buildings, Masonry Structures, Composite (Steel & RC) Structures, Cross-section Design Toolkit

Model ALIANS PLAZA, Batumi, Georgia | Gorodetsky Design Bureau

New system:Large Panel Buildings

Analysis 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.

Library of joints in preprocessor SAPFIR

Arrangement of restraints by embedded items in preprocessor SAPFIR

The library contains different variants of the following types of joints: platform joint, contact joint, vertical joints of wall panels with or without embedded items, etc. According to selected type, the user could compose certain samples of joints and place them to the building model.

Division and assignment of panel joints

Linear and nonlinear analyses are available for large panel buildings. The FE library contains new elements of panel joints. Nonlinear analysis enables you to carry out analysis by step-type method (simulation of loading process) and iteration method based on NonLinear Engineering Design concept (NL Engineering). With this concept it is possible to carry out analysis in standard method(analysis on several load cases, composing DCF and DCL, analysis of reinforcement, structural elements of joints and embedded items) with indirect consideration of nonlinear behaviour of structure. After analysis you will obtain all parameters of the stress-strain state of elements of the large panel building including diagrams of contact stresses in joints of the building.

New system: Masonry Structures

Analysis of reinforced masonry structures in LIRA-SAPR2017supports the following building codes: SP 15.13330.2012, SNIP II-22-81 andDBN B.2.6-162.

New ribbon tab: Masonry

The model is generated in preprocessors SAPFIR or VISOR-SAPR. The user assigns horizontal levels in structural model (at the elevation of min section of pier, at elevation where floor slabs are supported, etc.), the strength of masonry is checked at these levels. When forces are computed by the solver, combined 3D behaviour of load-bearing brick and reinforced concrete elements of the building is considered. Required number of mesh reinforcement as well as rebars of vertical reinforcement is determined. It is possible to analyse several variants for different division of wall segments in different design options defined by the user.

Input & output data in Masonry Structures mode

Materials are prepared and defined for design model in a similar way to the input data for analysis of steel and RC structures. Materials for analysis of masonry structures contain three components: properties of masonry, properties of reinforcement, parameters of exterior strengthening of piers.

Dialog box to define materials for analysis of masonry structures

Loads on brick piers are generated according to results of static and dynamic analyses. Loads on piers are presented both for separate load cases and for their combinations. Loads on piers may be presented as mosaic plots or as vectors applied at gravity centres of every pier.

Loads on piers presented as mosaic plots

Loads on piers (in masonry structures) presented as vectors

Output data for mesh reinforcement contains mosaic plot for number of masonry coursesin which reinforcement should be placed, mosaic plot for required diameters of meshes and appropriate percentage of reinforcement in masonry.

Mosaic plot for safety factors

Mosaic plot with number of masonry courses for arrangement of mesh reinforcement

If vertical rebars or combination from mesh reinforcement and rebars were assigned in analysis, then output data will contain mosaic plots for required number of rebars and their diameters as well as appropriate percentage of reinforcement.

For every level it is possible to obtain the sketch of working drawing with number of masonry courses in which it is necessary to place reinforcement meshes.

Automatic generation of groups of brick piers

In the same project it is possible to define different types of masonry structures, different types of stone, slag stone, shell limestone, tuff, etc.

New system: Composite (Steel & RC) Structures

Analysis of composite steel and RC structures is carried out according to Chapter7 SP 266.1325800.2016 - analysis of RC structures with stiff reinforcement and analysis of pipe concrete structures.

Analysis and design (as sketches) of elements (beams, columns) in composite steel and RC structures are available. Sections for stiff reinforcement are defined. Defined sections are checked and, if required, flexible reinforcement is determined. A wide set of types of stiff reinforcement is provided.

Types of sections and method for defining stiff reinforcement in section

Advanced algorithm for selection and check of composite steel and RC section is provided. The section includes elements of three different materials: concrete (B30, B40, etc.); stiff reinforcement (VSt3kp, etc.); flexible reinforcement (A400, A500, etc.).

The deformation theory of reinforced concrete is realized. Composite steel and RC section may be analysed on all types of forces.

Output data for composite steel and RC structures is presented in graphic and tabular form in a similar way to analysis of RC structures.

Output data for presentation of determined reinforcement in composite steel and RC structures

Elements of composite steel and RC structures may be exported to local mode of analysis for detailed evaluation and additional examination.

Analysis for composite steel and RC structures (local mode)

New system: Cross-section Design Toolkit

The following stiffness properties are computed: flexural, torsional, shear, warping, for mono- and multi-material arbitrary sections. Sections may be solid, thin-walled and combined. It is possible to include strip elements and rolled profiles. When you define forces that act on the section, the program computes stresses at any point of cross-section axial, shear, equivalent by different criteria of rupture. User-friendly interface on the basis of SAPFIR tools.

Document window in Cross-section Design Toolkit

Multi-material combined section (fragments of solids, strip elements and point inclusions)

Stiffness parameters of the section (output data)

User-defined section for analysis

Unified graphical user interface

  • Local axes of plates are automatically unified whenyou create and edit plane fragments of the model.

  • More methods to define and edit surface loads. Contour vertices may be defined by coordinates, with vector and by increment of coordinates from the current vertex.

  • When loading history is generated, for nonlinear problems it is possible to use defined combinations of DCL as well as load cases.

  • Output data for problems with time history analysis may be presented graphically for the whole model at the user-defined time points. Characteristic time points may be selected and saved (in an easy-to-use form) to the list that you will edit later. It is possible to animate the model deformation and manage the animation process.

    Preview output data of Dynamics-plus system

  • Skews of check points (located at different levels) are computed according to analysis results of separate load cases, design combinations of loads (DCL) or nonlinear loading history.

    Skews of storeys - analysis results

  • New option to generate (for fragment of the model) the shortlist with materials available in the fragment.

  • When you copy parameters of design option, list of parameters to be copied and settings areextended.

  • When the models are merged, the main model and the model that should be attached are automatically intersected, common data for design process is generated.

  • Added functionality in flags of drawing in order to manage information that will be displayed on the screen. New filters for search and selection of objects on design model and further fragmentation of design model.

  • New tool to display the input data and output data: it is possible to display contour plots, mosaic plots and diagrams only for selected elements and nodes without model fragmentation.

    Presentation of output data in new mode


  • Nodal response spectrums for dynamic loads on accelerograms are realized; these spectrums enable the user to obrain dynamic parameters for any zone of the structure.

    Output data for Response Spectrum at the specified node of the model

  • Time history analysis is carried out according to Newmark method. Within this analysis, damping properties of structure are considered two-nodeelement of visco damper; damping properties of materials(soil, etc.)

  • Within time history analysis, boundary elements are realized; they simulate behaviour of rejected part of soil in static and dynamic loads. For dynamic loads, such elements are transparent for the waves. Realized boundary elements are debugged and will be included into subsequent releases of the program.

  • Pushover analysis: it is possible to consider (by approximate method) physically nonlinear properties of material in dynamic loads.

  • Within step-type solver, analysis with account of nonlinear thermal creep is provided.

  • In step-type solver it is possible to compose the loading history not only from load cases but from DCL as well, and combined history that contains both load cases and DCL.

  • For physically nonlinear analysis, the stress-strain diagram with falling branch is realized(Eurocode 2).

    Nonlinear stress-strain diagram for concrete with falling branch

  • Finite elements that simulate platform joints in large panel buildings for linear analysis (FE 58, FE 59) and for nonlinear analysis(FE 258, FE 259).

  • Modified analysis of mode shapes of natural vibrations. Modified buckling analysis.

Analysis of Reinforced Concrete (RC) Structures

  • Analysis of torsion reinforcement for composite sections is available for building code SP63.13330.2012. Composite sections are divided into rectangular components. Appropriate torsion reinforcement is displayed for every rectangular component.

    Analysis of torsion reinforcement for composite sections

  • Effective height of wall is considered in analysis of reinforcement according to Karpenko theory.Four concrete covers may be considered in analysis of reinforcement in plate elements by Karpenko theory.

    Materials for analysis of RC structures

  • Punching shear analysis for floor slabs according to CH PK EN 1992-1-1:2004/2011 and DBN B.2.6-98:2009.

  • Schematic design is provided for beams and columns according to SP 63.13330.2012.

When you design beams and columns it is possible to arrange reinforcement, vary diameters of reinforcement bars, obtain diagram of materials, obtain information about reinforcement in selected section of beam (column).

Design of beam. Diagram of materials

Design of column. Reinforcement pattern

You could also obtain sketches of working drawings for reinforcement in beams and columns. The sketches include sectional elevations, cross-sections of beam (column), specification of reinforcement and bill of materials.

Working drawing (sketch) with reinforcement in beam

Working drawing (sketch) with reinforcement in column

Analysis of steel structures

In addition to 74 existing joints of steel structures, 7 new types of joints with rigid column bases are added with different arrangement of anchor bolts and traverses.

Rigid column bases

New set of joints with rigid column bases

To evaluate in detail the output data for new joints, the tracing routine is provided.

Analysis of joint (local mode), tracing routine

In local mode of STC-SAPR, data about governing forces that were used for selection/check of steel section is added for the building code SP 16.13330.2011. This option significantly helps you to simplify evaluation of the output data.

STC-SAPR. Output data

Report Book (Documentation system)

To check and prepare documentation with stiffness parameters applied in design model, tables of input data may be updated now.

Input data tables

Input data documents for physically nonlinear analysis

Set of updatable tables for output data of masonry structures is enhanced (loads on piers by load cases/DCL/DCF, output data for additional reinforcement with reinforcement meshes and rebars).

New set of tables with output data for analysis of masonry structures

Moving loads according to SP 35.13330.2011

Moving load at elements of the bridge span is simulated according to SP 35.13330.2011. To do this, preprocessor SAPFIR provides you with special tools that enable you to select load from the library, adjust parameters, graphically define and edit trajectories, stand points and generate DCL. The library of loads is refilled with interactive tools.

Moving loads according to SP 35.13330.2011

Import of floor plans

Enhanced tecnhology for generation of 3D model of the structure based on DXF floor plans. Types of objects and their properties may be assigned both through parameters of layers when generating in AutoCAD and directly in SAPFIR.

Import of DXF floor plans