
February 27, 2023
IBC 2021 Is Now Available!
RISA-3D, RISAFloor and RISAFoundation now include support for IBC 2021!
In structural engineering, few design challenges are as rewarding—or as unforgiving—as the tall building. While gravity systems and code checks form the backbone of any structural project, once a structure rises beyond ten or fifteen stories, a shift occurs. Wind and seismic forces begin to dominate. Story drift and torsional irregularities become non-negligible. Load paths grow increasingly indirect. And design decisions, if not carefully made early on, can have exponential consequences higher in the structure. Tall buildings are not simply “bigger” versions of short ones. They behave differently. And understanding those differences is essential for any engineer working in an urban environment where building vertically is often the only viable path forward. Modeling for Reality, Not Just Code The foundation of any successful tall building design lies in the model—its assumptions, resolution, and degree of abstraction. Many engineers begin with simplified representations: rigid diaphragms, idealized connections, and linear material properties. This is practical and often sufficient for early design phases. But as the building increases in height and complexity, those assumptions may start to mask critical behaviors. Semi-rigid diaphragm modeling, for instance, allows engineers to capture in-plane flexibility of floor systems—especially important in buildings with irregular cores, open floor plans,…
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RISA-3D, RISAFloor and RISAFoundation now include support for IBC 2021!
With the addition of Filter Elements by Property option in RISA-3D v21, the printed reports have been improved. In previous versions, you had to filter each report section. Now you’ll find the Report spreadsheets can be filter in one location for the printed report. The Filter Elements by Property...
RISA-3D v21 now offers a modern user interface that allows users to more easily utilize the tools and features that make RISA-3D great. RISA-3D's latest interface has engineers' workflow in mind. With an updated interface to match the Windows 11 update, users will experience greater ease of use...
Users can now generate an Excel spreadsheet for each design section showing a summary of the design section properties, reinforcement, and moment demand and capacity. These detailed calculation reports currently include minimum required reinforcement as shown on the As,min tab of the spreadsheet....
ADAPT-Builder v22 now includes the ability to model a Drop Cap and a Drop Panel at the same support. The Punching Shear check considers both Drop Caps and Drop Panels when creating critical sections for the Two-Way Shear Design. Whether modeling a Drop Cap, a Drop Panel, or a Drop Cap within a Drop...
ADAPT-Builder provides the user with the ability to add post-tensioning to ramps modeled within the program. Users can add tendons in ramp slabs as well as add tendons in beams supporting the ramp. The tendons and effects of the tendons on the structure will be included in the analysis of the...
RISAFloor now includes the ability to design web openings (with and without reinforcement) for steel and composite steel beams according to the AISC design code. To learn more, view the video below. For more information about web opening design in RISAFloor, search Web Openings in the RISAFloor...
We are pleased to announce our latest RISA-3D release. Our teams have been working hard to add the features and functionality that our customers have requested as well fix some of the issues that have been reported. New features in this release include:
RISAFloor ES and RISAFoundation now include the ability to assign and design concrete elevated slab and foundation elements with welded wire reinforcement. To learn more, view the video below.
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