Comprehensive CAD-like drawing/editing environment: draw, generate, modify and load elements as well as snap, move, rotate, copy, mirror, scale, split, merge, mesh, delete, apply, trim, extend, etc.

Versatile drawing grids (orthogonal, radial, skewed, DXF underlay)

Universal snaps and object snaps allow drawing without grids

Powerful graphic select/unselect tools including box, line, polygon, invert, criteria, spreadsheet based, save/recall selections with locking

True spreadsheet editing with cut, paste, fill, math, sort, find, etc.

Dynamic synchronization between spreadsheets and graphics

Open multiple spreadsheets simultaneously

Constant in-stream error checking and data validation

Unlimited undo/redo capability, automatic timed backup

Generation templates for grids, disks, cylinders, cones, arcs, trusses, tanks, hydrostatic loads, geodesic domes, etc.

Support for all units systems & conversions at any time

Automatic interaction with RISASection custom shape libraries

Light Gage Shapes: AISI, SSMA, Dale/Incor, Dietrich, Marino\WARE

Import DXF, RISA-2D, STAAD and CIS/2 files

Export DXF, SDNF and CIS/2 files

Robust two-way link with Autodesk Revit 2024, 2023, 2022 & 2021

Link with Tekla Structures 2023, 2022, 2021 & 2020

Steel Design Codes: AISC 360-22/16/10/05: ASD & LRFD, AISC 2nd & 3rd: LRFD, AISC 9th: ASD, CSA S16-14/09/05/01/CSA-S16.1-94, BS 5950-1: 2000, EN 1993-1-1:2014/2005, ENV 1993-1-1:1992, IS 800: 2007/1998, AS 4100-1998, NZS 3404: 1997

Seismic design per AISC 341-22/16/10/05, including 358 prequalified connections

Concrete Design Codes: ACI 318-19 (22)/19/14/11/08/05/02/99, CSA A23.3-14/04/94, NTC-DF 2004, BS 8110-1: 1997, BS EN 1992-1-1: 2004+A1: 2014/2004, EN 1992-1-1:1992, IS 456: 2000, AS 3600-2001, NZS 3101: 1995, SBC 304-2007

Cold Formed Steel Design Codes: AISI S100-16/12/10/07: ASD & LRFD, AISI NAS-04/01: ASD & LRFD, AISI 1999: ASD & LRFD, AISI 400-15 & AISI S240-15 (Walls), CSA S136-16/12/10/07/04/01: LSD, CANACERO 16: ASD, CANACERO 12/10/07/04/01: ASD & LRFD

Aluminum Design Codes: AA ADM1-15/10: ASD & LRFD, AA ADM1-05: ASD

Wood Design Codes: AWC NDS-24/18/15/12: ASD, AF&PA NDS-08/05/01/97/91: ASD, CSA 086-14/09 Ultimate, Structural Composite Lumber, multi-ply, full sawn, Glulam, shear walls

Masonry Design Codes: TMS 402-22/16: ASD & Strength, ACI 530-13/11/08/05/02: ASD & Strength, ACI 530-99: ASD, UBC 1997: ASD & Strength

Stainless Steel Design Code: AISC 360-10: ASD & LRFD

Wind loads are generated automatically (ASCE 7-22/16/10/05/02/98/95, NBC 15/10/05, NTC 2004, & IS 875: 1987) for building-type structures, including partial wind cases

Seismic loads are generated automatically (ASCE 7-22/16/10/05/02, CBC 2001, IBC 2000, UBC 1997, NBC 15/10/05, NTC 2004, & IS 1893: 2002) for building-type structures, including accidental torsion

Analysis of 1D members (beams, columns, braces, etc.) using Finite Element Method

Analysis of 2D elements (plates, walls) using Finite Element Method

Analysis of 3D elements (solids) using Finite Element Method

Partial fixity member end releases using rotational spring constants

Simpson Strong-Tie Yield Link as member end releases

Orthotropic Plate Material 

Time History Analysis

Accelerated true sparse solver for static analysis

Accelerated Sparse Lanczos dynamics solver, very fast and robust

Flexible modeling of P-Delta effects

Multiple simultaneous dynamic and response spectra analysis using Gupta, CQC or SRSS with automatic calc of scaling factors

Automatic inclusion of mass offset (5% or user defined) for dynamics when integrated with RISAFloor

Ritz vector dynamic solver

True physical member modeling (members are aware of interior joints)

Plate/shell elements with plane stress only option

8 node solid elements

High end mesh generation — draw a polygon with any number of sides to create a mesh of well formed quadrilateral (NO triangular) elements

Automatic rigid diaphragm modeling with detachable joints

Area loads with one-way or two-way distributions with optional “blow through” distribution for loading open structures

Plate thermal loads

Simultaneous moving loads, AASHTO/custom for bridges, cranes…

Torsional warping calculations for stiffness, stress and design of hot rolled steel

Member end releases, rigid end offsets, analysis offsets

Enforced joint displacements

One Way members, for tension only bracing, slipping, etc.

One Way springs, for modeling soils and other effects

Euler members: Compression up to buckling load, then disable

Stress calculations on any arbitrary shape

Inactivate members, plates, solids and diaphragms without deleting them

Story drift calculations provide relative drift and ratio to height

Automatic self-weight calculations for members, plates and solids

Designs/optimizes concrete, hot rolled & cold formed steel, masonry, wood and aluminum

Program selected or user-defined rebar layouts for flexure and shear

Concrete beam detailing (Rectangular, T and L).

Concrete column interaction diagrams

Concrete wall design including in-plane, out-of-plane & bearing loads

Automatic spectra generation for ASCE 7, NBC, IS 1893, NTC

Extensive user controlled generation of load combinations

Intelligent unbraced length calculations for physical members

Tapered wide flange design per AISC Design Guide 25

Masonry wall design for in-plane and out-of-plane

Wood Shapes: Complete NDS species/grade and Glulam database

Complete wood wall design for bearing & shear walls: Segmented, Perforated & Force Transfer Around Openings design methods

Strap and Hold Down design for Wood Shear Walls

Seismic design of concrete walls using ACI 318-14 Chapter 18

Concrete seismic coupling beams for multi-story walls with diaphragms

Capacity-Limited Seismic Design for Special Concentrated Braced Frames (SCBF)

Buckling Restrained Brace (BRB) seismic checks using CoreBrace elements

Graphic presentation of color-coded results and plotted designs

Color contours on plates, solid stresses/forces with smoothing and animation

Spreadsheet results with sorting and filtering of: deflections, forces, stresses, optimized sizes for strength or deflection, code designs, concrete reinforcing, material takeoffs, etc.

Standard and user-defined reports

Unlimited simultaneous model view windows

“True to scale” rendering with translucency, even when drawing

High-speed redraw algorithm for instant refreshing

Dynamically zoom, pan, rotate, scroll, snap views

Font and color control

Saved views to quickly restore frequent or desired views

Rendered or wire-frame animations of deflected model and mode shapes

Animation of moving loads with speed control

Distance tool for measuring between points

Force/moment summation about any arbitrary cut line

High quality customizable graphics printing

RISA-3D, RISAFloor, RISAFoundation and RISAConnection are so tightly integrated that they operate as one program on the same building model. Optimize the gravity system in RISAFloor, the lateral system in RISA-3D, the connection design in RISAConnection and the foundation system in RISAFoundation, with a complete flow of information both ways.

Integration supported for the following versions: RISA-3D v22, RISAFloor v18, RISAFoundation v16 and RISAConnection v14

Compatible with Windows 8.1/10/11 (64-bit Windows)

Program technical support provided by Professional Engineers

Comprehensive CAD-like drawing/editing environment: draw, generate, modify and load elements as well as snap, move, rotate, copy, mirror, scale, split, merge, mesh, delete, apply, trim, extend, etc.

Versatile drawing grids (orthogonal, radial, skewed, DXF underlay)

Universal snaps and object snaps allow drawing without grids

Powerful graphic select/unselect tools including box, line, polygon, invert, criteria, spreadsheet based, save/recall selections with locking

True spreadsheet editing with cut, paste, fill, math, sort, find, etc.

Dynamic synchronization between spreadsheets and graphics

Open multiple spreadsheets simultaneously

Constant in-stream error checking and data validation

Unlimited undo/redo capability, automatic timed backup

Generation templates for grids, disks, cylinders, cones, arcs, trusses, tanks, hydrostatic loads, geodesic domes, etc.

Support for all units systems & conversions at any time

Automatic interaction with RISASection custom shape libraries

Light Gage Shapes: AISI, SSMA, Dale/Incor, Dietrich, Marino\WARE

Import DXF, RISA-2D, STAAD and CIS/2 files

Export DXF, SDNF and CIS/2 files

Robust two-way link with Autodesk Revit 2024, 2023, 2022 & 2021

Link with Tekla Structures 2023, 2022, 2021 & 2020

Steel Design Codes: AISC 360-22/16/10/05: ASD & LRFD, AISC 2nd & 3rd: LRFD, AISC 9th: ASD, CSA S16-14/09/05/01/CSA-S16.1-94, BS 5950-1: 2000, EN 1993-1-1:2014/2005, ENV 1993-1-1:1992, IS 800: 2007/1998, AS 4100-1998, NZS 3404: 1997

Seismic design per AISC 341-22/16/10/05, including 358 prequalified connections

Concrete Design Codes: ACI 318-19 (22)/19/14/11/08/05/02/99, CSA A23.3-14/04/94, NTC-DF 2004, BS 8110-1: 1997, BS EN 1992-1-1: 2004+A1: 2014/2004, EN 1992-1-1:1992, IS 456: 2000, AS 3600-2001, NZS 3101: 1995, SBC 304-2007

Cold Formed Steel Design Codes: AISI S100-16/12/10/07: ASD & LRFD, AISI NAS-04/01: ASD & LRFD, AISI 1999: ASD & LRFD, AISI 400-15 & AISI S240-15 (Walls), CSA S136-16/12/10/07/04/01: LSD, CANACERO 16: ASD, CANACERO 12/10/07/04/01: ASD & LRFD

Aluminum Design Codes: AA ADM1-15/10: ASD & LRFD, AA ADM1-05: ASD

Wood Design Codes: AWC NDS-24/18/15/12: ASD, AF&PA NDS-08/05/01/97/91: ASD, CSA 086-14/09 Ultimate, Structural Composite Lumber, multi-ply, full sawn, Glulam, shear walls

Masonry Design Codes: TMS 402-22/16: ASD & Strength, ACI 530-13/11/08/05/02: ASD & Strength, ACI 530-99: ASD, UBC 1997: ASD & Strength

Stainless Steel Design Code: AISC 360-10: ASD & LRFD

Wind loads are generated automatically (ASCE 7-22/16/10/05/02/98/95, NBC 15/10/05, NTC 2004, & IS 875: 1987) for building-type structures, including partial wind cases

Seismic loads are generated automatically (ASCE 7-22/16/10/05/02, CBC 2001, IBC 2000, UBC 1997, NBC 15/10/05, NTC 2004, & IS 1893: 2002) for building-type structures, including accidental torsion

Analysis of 1D members (beams, columns, braces, etc.) using Finite Element Method

Analysis of 2D elements (plates, walls) using Finite Element Method

Analysis of 3D elements (solids) using Finite Element Method

Partial fixity member end releases using rotational spring constants

Simpson Strong-Tie Yield Link as member end releases

Orthotropic Plate Material 

Time History Analysis

Accelerated true sparse solver for static analysis

Accelerated Sparse Lanczos dynamics solver, very fast and robust

Flexible modeling of P-Delta effects

Multiple simultaneous dynamic and response spectra analysis using Gupta, CQC or SRSS with automatic calc of scaling factors

Automatic inclusion of mass offset (5% or user defined) for dynamics when integrated with RISAFloor

Ritz vector dynamic solver

True physical member modeling (members are aware of interior joints)

Plate/shell elements with plane stress only option

8 node solid elements

High end mesh generation — draw a polygon with any number of sides to create a mesh of well formed quadrilateral (NO triangular) elements

Automatic rigid diaphragm modeling with detachable joints

Area loads with one-way or two-way distributions with optional “blow through” distribution for loading open structures

Plate thermal loads

Simultaneous moving loads, AASHTO/custom for bridges, cranes…

Torsional warping calculations for stiffness, stress and design of hot rolled steel

Member end releases, rigid end offsets, analysis offsets

Enforced joint displacements

One Way members, for tension only bracing, slipping, etc.

One Way springs, for modeling soils and other effects

Euler members: Compression up to buckling load, then disable

Stress calculations on any arbitrary shape

Inactivate members, plates, solids and diaphragms without deleting them

Story drift calculations provide relative drift and ratio to height

Automatic self-weight calculations for members, plates and solids

Designs/optimizes concrete, hot rolled & cold formed steel, masonry, wood and aluminum

Program selected or user-defined rebar layouts for flexure and shear

Concrete beam detailing (Rectangular, T and L).

Concrete column interaction diagrams

Concrete wall design including in-plane, out-of-plane & bearing loads

Automatic spectra generation for ASCE 7, NBC, IS 1893, NTC

Extensive user controlled generation of load combinations

Intelligent unbraced length calculations for physical members

Tapered wide flange design per AISC Design Guide 25

Masonry wall design for in-plane and out-of-plane

Wood Shapes: Complete NDS species/grade and Glulam database

Complete wood wall design for bearing & shear walls: Segmented, Perforated & Force Transfer Around Openings design methods

Strap and Hold Down design for Wood Shear Walls

Seismic design of concrete walls using ACI 318-14 Chapter 18

Concrete seismic coupling beams for multi-story walls with diaphragms

Capacity-Limited Seismic Design for Special Concentrated Braced Frames (SCBF)

Buckling Restrained Brace (BRB) seismic checks using CoreBrace elements

Graphic presentation of color-coded results and plotted designs

Color contours on plates, solid stresses/forces with smoothing and animation

Spreadsheet results with sorting and filtering of: deflections, forces, stresses, optimized sizes for strength or deflection, code designs, concrete reinforcing, material takeoffs, etc.

Standard and user-defined reports

Graphic member detail reports with force/stress/deflection diagrams and detailed design calculations and expanded diagrams

Unlimited simultaneous model view windows

“True to scale” rendering with translucency, even when drawing

High-speed redraw algorithm for instant refreshing

Dynamically zoom, pan, rotate, scroll, snap views

Font and color control

Saved views to quickly restore frequent or desired views

Rendered or wire-frame animations of deflected model and mode shapes

Animation of moving loads with speed control

Distance tool for measuring between points

Force/moment summation about any arbitrary cut line

High quality customizable graphics printing

RISA-3D, RISAFloor, RISAFoundation and RISAConnection are so tightly integrated that they operate as one program on the same building model. Optimize the gravity system in RISAFloor, the lateral system in RISA-3D, the connection design in RISAConnection and the foundation system in RISAFoundation, with a complete flow of information both ways.

Integration supported for the following versions: RISA-3D v22, RISAFloor v18, RISAFoundation v16 and RISAConnection v14

Compatible with Windows 8.1/10/11 (64-bit Windows)

Program technical support provided by Professional Engineers