
October 30, 2020
Concrete Design according to ACI 318-19 Now Available
The new ACI 318-19 concrete code has been implemented into RISA-3D v19, RISAFloor v15, RISAFoundation v13 and RISA-2D v19.
If you've ever wondered what it’s like to be an industrial structural engineer, let me paint you a picture: Imagine juggling a dozen problems at once—steel frames, conveyor supports, pipe racks, tank foundations—all while trying to decipher a set of drawings that look like they were faxed from 1997. And, of course, every single solution is needed yesterday. But don’t worry! With the right tools (cough RISA and ADAPT cough), navigating this daily chaos becomes a lot more manageable. So, grab your coffee (black, obviously), and let’s walk through a typical day. 6:30 AM: Morning Coffee & Evaluating Additional Loads The first email of the day: “Can we add another 10,000 lbs of equipment to the mezzanine? What about seismic drift and vibration?” Instead of a lengthy hand calculation, you fire up RISAFloor and check gravity load distribution. Exporting to RISA-3D, you analyze modal frequencies and check if the additional weight will push the structure into an uncomfortable range for human occupancy. Seismic drift is next. A quick response spectrum analysis in RISA-3D confirms that the drift is still within acceptable limits. You send your report with confidence—no major framing changes required. 9:00 AM: Field Issue - Pipe Rack Base…
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The new ACI 318-19 concrete code has been implemented into RISA-3D v19, RISAFloor v15, RISAFoundation v13 and RISA-2D v19.
Cold-formed steel framing is a durable, reliable and cost-effective option for low-rise and mid-rise building projects. With the release of RISA-3D Version 19 and RISAFloor Version 15, cold formed steel (CFS) walls are now available for analysis and design. Walls that have been designated as...
In many cases, cold-formed steel channels are built-up as back-to-back profiles in order to add strength and stability. Previously, these sections (along with face-to-face profiles) could be specified in RISAFloor, but unlike in RISA-3D could not be designed. RISAFloor v15 now includes the ability...
RISAFloor now includes the ability for engineers to model with and design CJ-Series composite steel joists according to SJI 200-2015 and including the design of top/bottom chords, bridging, joist seat depth as well as headed stud size and spacing.
The ability to apply a scaling factor to an entire Basic Load Case in the Basic Load Case spreadsheet is now available in RISA-3D v19. These scaling factors give the user the flexibility and freedom to modify and manipulate the loading conditions in the model.
RISA-3D Version 19 now includes the ability to define the plate methodology of a material as orthotropic. In structural analysis and design, it may be useful to define plates or slabs that have different characteristics (stiffness) in the longitudinal and transverse directions. Doing so will result...
A number of improvements have been made to solid elements in RISA-3D v19 allowing users enhanced flexibility in viewing input data as well as evaluating results associated with solid elements.
With the release of RISAFoundation v13, you now have the ability to transfer Response Spectra Analysis reactions from RISA-3D v19. RISAFoundation now also includes additional seismic options that can be considered in the generation of Load Combinations.
The AISC 341-16 and AISC 358-16 Edition changes have been implemented into RISA-3D v19.
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