May 10, 2018

Viewing Design Foundations in RISA-3D

RISA-3D v16 now includes the added ability to view foundations designed in RISAFoundation. This feature proves useful as it gives a way for engineers to see if foundations have been sized appropriately for the loading from RISA-3D. For more information about how foundations can be shown in RISA-3D, view the video posted to YouTube.

Tags: RISA-3D, New, Foundations

October 10, 2019 | RISA-3D, New, Training

RISA-3D Training - Minneapolis, MN - August 18-19, 2020

The RISA-3D training classes are a great way to receive instruction from the RISA experts while working on real-world examples that allow you to quickly master RISA software, take advantage of the latest features, streamline engineering and tackle modeling complexities. This two-day regional RISA-3D training will be held in Minneapolis, MN on August 18-19, 2020 at the Renaissance Minneapolis Hotel and includes the following classes: Basics of Structural Modeling (Day 1) Advanced Structural Modeling (Day 2) For more information and to register for this course, use the link below: RISA-3D Training - Minneapolis, MN For more information on the venue, the Renaissance Minneapolis Hotel, The Depot click the button below: Renaissance Minneapolis Hotel, The Depot Tags:…

July 21, 2020 | Seismic, Dynamics, RISA-3D, New

Improving Mass Participation in RISA-3D

In structural engineering, a modal analysis uses the overall mass and stiffness of a structure to find the various periods at which the structure will naturally resonate, along with the frequencies of vibration of the structure. In RISA-3D, the modal analysis is a prerequisite to the response spectra analysis, which uses these frequencies to calculate forces, stresses and deflections in the model. When conducting a modal response spectrum analysis, building codes (including ASCE 7) require that a sufficient number of modes be used to understand the overall response of the structure. While it is not always possible to achieve full participation (a case where 100% of the modal mass is accounted for) the code does at minimum require that a modal analysis shall include a minimum number of modes in order to obtain a combined mass participation of at least 90% of the actual mass in each orthogonal horizontal direction (X & Z directions in RISA-3D). In order to determine the appropriate number of modes for a given structure (while also achieving the 90% mass participation required by code), RISA-3D users must first pick an arbitrary number of modes (5 to 10 is usually a good starting point) and solve…

February 15, 2022 | RISA-3D, New, UI, Interface, View

Easily view specific data using Viewer Mode in RISA-3D

RISA-3D is a robust tool for the analysis and design of a variety of different structures. Whether users are creating simple or incredibly complex models, the need to be able to easily review precise results and create corresponding screenshots is paramount. As a result, RISA-3D Version 20 now includes Viewer Mode which allows users to quickly show element information only for selected elements. Additionally, both input and result spreadsheets are also automatically filtered based on which elements are selected. What is Viewer Mode? When Viewer mode is enabled, only the elements that are displayed or selected will graphically display information. This applies to element labels, code checks, force diagrams or any other information that is displayed on the elements. By default, spreadsheets will also automatically filter to reflect the elements that are currently selected in the 3D view. Enabling & Using Viewer Mode Viewer Mode can be activated by clicking on the "eye" icon found in the 3D View's "Selection Toolbar". When this icon is green this means Viewer mode is enabled. Additionally you will see a green border around the 3D View when Viewer mode is enabled. With Viewer Mode active you can simply single click an element to…