March 4, 2021

Video: Composite Steel Beam Design in RISACalc

Learn how to load and design individual composite beams according to AISC and CSA design codes in RISACalc.

Tags: RISA, New, Composite Steel, RISACalc

February 26, 2015 | RISA-3D, RISAFloor, RISA-2D, New, Wood

Canadian Wood Design now Available

Timber design per the Canadian CSA 086-2009 design code is now available. Canadian wood member design is very similar to the US NDS member design. There are slightly different load factors, material properties, shape tables, and capacity equations, but the overall modeling procedure in RISA is the same. Selecting the Canadian Design Code Start by selecting the “CSA 086-09: Ultimate” code from the Codes tab of Global Parameters: Setting up Canadian Wood Materials The next step is to set up your materials. As long as you have selected the Canadian wood design code (as shown above), the program will know to use the material properties per the CSA 086-09 Tables 5.3.1A-D. These properties depend on the material selection and the shape selection. Setting up Metric Shape Members Wood shape selection depends on your selected units. If you are using metric units then you will be able to select your shape from the list of standard metric shapes, or manually enter a full sawn size using mm: If you are using imperial units then you will be able to select your shape from the list of standard imperial shapes, or manually enter a full sawn size using in: Design Results After…

February 15, 2022 | RISAFloor, New, Steel

Design of WT and LL members in RISAFloor

RISAFloor Version 16 provides engineers the ability to analyze and design hot rolled steel WT and LL shapes. This functionality was previously implemented in RISA-3D and will allow users greater flexibility when designing their steel structures. Additionally, WT and LL shapes can be specified and modeled as column or beam elements in RISAFloor. Finally, WT and LL shapes are generally popular in uses such as truss chords, braces, perimeter beams to support façade systems in structures and as drag struts or collectors in diaphragm edges. Currently, the design of hot rolled steel WT and LL shapes are available for the following design codes: AISC 360-16 (15th Edition): ASD & LRFD AISC 360-10 (14th Edition): ASD & LRFD When the design of these elements is complete, users can review results in both Design and Code Check spreadsheets as well as in the detailed reports. For more information about WT and LL shapes and their use in RISAFloor, visit the Hot Rolled Steel section of the RISAFloor Online Help…

March 12, 2015 | RISA-3D, RISA-2D, New, Steel

Cold-Formed Steel Back to Back Design

Cold Formed Steel channels are often built-up as back-to-back sections to help strengthen them. RISA-3D can design the Cold Formed Steel back-to-back channel and track sections. The Shape Selection dialog will allow you to model the built –up sections by selecting “Back to Back” shown below. There are a variety of different code checks that are done for back to back sections per the AISI and these are all done automatically for you. There is one new parameter required by RISA, the spacing of the connections between the back-to-back members in order to properly calculate the slenderness (KL/r). This additional spacing input required is listed as “a” in the Properties Panel or the Member spreadsheet: The Detail Report for Back-to-Back members shows all the controlling section properties including Effective Area, Section Modulus, and Moment of Inertia…