RISA 2D

RISA-2D In-Depth

The one that started it all, RISA-2D is general purpose two-dimensional analysis and design software that makes engineering 2D structures quick and easy. RISA-2D’s powerful graphical modeling capabilities, flexible generation tools and detailed proprietary spreadsheets help you rapidly model, solve and optimize structures with any combination of materials.

RISA-2DA State-of-the-Art Interface

Our multiple view interface, advanced selection and drawing tools, and spreadsheet features continue to be the best in the business.

Powerful Analysis and Design

With RISA-2D, you can rapidly design frames, trusses, continuous beams, walls and everything in between.

RISA-2D modelInteractive Modeling

The strength of RISA-2D is its truly interactive interface. With model editing, solving and results browsing in the same interface, you’re able to do real-time error checking of your data, and rapidly create, solve, modify and optimize your model.

Top-notch Presentation of Results

Both graphical and numerical visualization capabilities let you get presentation quality results quickly and easily.

Modeling Features

  • 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, etc.
  • Versatile drawing grids (orthogonal, radial, skewed)
  • 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.
  • Open multiple spreadsheets simultaneously
  • Dynamic synchronization between spreadsheets and graphics
  • Constant in-stream error checking and data validation
  • Unlimited undo/redo capability, automatic timed backup
  • Generation templates for grids, disks, arcs, etc.
  • Sophisticated in-stream truss builder application; automatic creation of trusses of all kinds, with varying chord slopes, web patterns, etc.
  • Automatic generation of continuous beams
  • Support for all units systems & conversions at any time
  • Automatic interaction with RISASection custom shape libraries
  • Modification tools that modify single items or entire selections
  • Import and export DXF
  • Export to RISA-3D

Analysis Features

  • Accelerated true sparse solver for static analysis
  • Flexible modeling of P-Delta effects
  • Accelerated (Lanzcos) Dynamics Solver
  • Multiple simultaneous dynamic and response spectra analysis using Gupta, CQC or SRSS mode combinations
  • Automatic Generation of Response Spectra Scaling Factors
  • True physical member modeling (members are aware of interior joints)
  • State-of-the-art 3 or 4 node plate/shell elements, plane stress option
  • Plate Thermal Loading
  • High end automatic mesh generation – draw a polygon with any number of sides to create a mesh of well formed quadrilateral (NOT triangular) elements
  • Accurate analysis of tapered wide flanges – web, top and bottom flanges may all taper independently
  • Multiple simultaneous moving loads with standard AASHTO loads and custom moving loads for bridges, cranes, etc.
  • Automatic Top of Member offset modeling
  • Joint master-slave assignments
  • Enforced joint displacements
  • 1-Way members, for tension only bracing, slipping, etc.
  • 1-Way springs, for modeling soils and other effects
  • Euler members: Compression up to buckling load, then turn off
  • Story drift calculations provide relative drift and ratio to height
  • Automatic self-weight calculations for members and plates

Graphics Features

  • Unlimited simultaneous model view windows
  • “True to scale” rendering with translucency, even when drawing
  • High-speed redraw algorithm for instant refreshing
  • Dynamic zoom, pan, rotate, scroll, snap views
  • Font and Color Control
  • Saved views to quickly restore frequent or desired views
  • Full render or wire-frame animations of deflected model and dynamic mode shapes with frame and speed control
  • Animation of moving loads
  • Distance tool for measuring between points
  • Force/moment summation about any arbitrary cut line

Design Features

  • Designs/optimizes concrete, hot rolled steel, cold formed steel and wood
  • Concrete Design Codes: ACI 1999/2002/2005, BS 8110-97, CSA A23.3-94, IS456:2000, EC 2-1992, NZS3101-1995, AS3600-2001, NTC-DF2004
  • Maintains consistent bar sizes through adjacent spans
  • Concrete design using cracked or uncracked sections
  • Masonry Design Codes: MSJC 1999/2002/05, UBC 97 (ASD & Strength)
  • Masonry wall design for in-plane & bearing loads (with or w/o openings)
  • Program selected or user defined reinforcement layouts for flexure and shear for both beams and columns (place the bars exactly where you want them or let the program place them, your choice)
  • Exact integration of concrete stress distributions using a rectangular stress block or a more accurate parabolic stress block
  • Concrete beam detailing (Rectangular, T and L) for both flexural and shear
  • Concrete column interaction diagrams, including biaxial effects (code required minimums used for out of plane)
  • Steel Design Codes: AISC ASD 9th, LRFD 2nd & 3rd, HSS Specification, CAN/CSA-S16.1-1994 & 2004, BS 5950-1-2000, IS 800-1984, Euro 3-1993, MZS 3404-1:1997, AS 4100-1998 including local shape databases
  • AISC 13th Edition using the Direct Analysis Method, the method preferred by the AISC for stability calculations
  • AISI 1999/2001, CSA S136-01 cold formed steel design
  • NDS 1991/1997/2001/2005 wood design, including SCL, multi-ply, full sawn, and Glulams
  • Automatic spectra generation for UBC 1997, IBC 2000/2003/2006
  • Extensive user controlled generation of load combinations: ASCE, UBC, IBC, BOCA, SBC, ACI, International
  • Intelligent unbraced length calculations for physical members
  • Automatic approximation of K factors
  • Tapered wide flange design with either ASD or LRFD codes
  • Optimization of member sizes for all materials and all design codes, controlled by standard or user-defined lists of available sizes and criteria such as maximum depths/widths, limiting code checks, etc.
  • Automatic calculation of custom shape properties
  • Steel Shapes: AISC, HSS, CAN, ARBED & numerous foreign databases
  • Light Gage Shapes: AISI, SSMA, Dale/Incor, Dietrich, Marino\WARE
  • Wood Shapes: Complete NDS species/grade and Glulam database as well as user defined custom wood species
  • Complete wood wall design for bearing & shear walls
  • Seamless integration with RISAFoot (Ver 3) for advanced footing design

Results Features

  • Graphic presentation of color-coded results and plotted designs
  • Graphic tool that reports all forces and moments for members and plates about any arbitrary line
  • Color contours of plate stresses and forces with quadratic smoothing, the contours may also be animated
  • Spreadsheet results with sorting and filtering of: reactions, member & joint deflections, beam & plate forces/stresses, optimized sizes, code designs, concrete reinforcing, material takeoffs, frequencies and mode shapes
  • Standard and user-defined reports
  • Graphic member detail reports with force/stress/deflection diagrams and detailed design calculations and expanded diagrams that display magnitudes at any dialed location

General Features

  • Optimized for Windows 2000/XP/Vista
  • Extensive customization options & user defaults
  • Comprehensive printed reference manual & tutorials
  • Encyclopedic online help with index and cross-reference
  • Program technical support provided by Professional Engineers