July 30, 2020

Introducing Integrated Design: Seamlessly Linking Architecture and…

Learn how Graphisoft and RISA are working together to leverage model information created by the architect to create a more seamless workflow, while minimizing the duplication that is typical of today's design process:

Feature	ADAPT-PT/RC	ADAPT-Builder
Preliminary Sizing	X	X

Tags: RISA, New, BIM, Archicad

October 29, 2020 | RISA-3D, RISAFloor, Concrete, RISAFoundation, New, v15, v19, v13

Interaction of Shear Forces Acting Along Orthogonal Axes in Concrete

Recent tests and analytical results for concrete columns have indicated that considering shear along each centroidal axis independently can be unconservative. Therefore current versions of RISA-3D, RISAFloor and RISAFoundation have included the consideration for the interaction of shear forces acting along orthogonal axes per ACI 318-19 equation 22.5.1.11. When Vu/ΦVn > 0.5 in both orthogonal directions, a new expandable section of the Detail Report will appear for the interaction equation. RISA-3D RISAFoundation…

December 16, 2016 | RISA-3D, RISAFloor, RISAFoundation, New, Modeling

Viewing Coordinates in Cursor Display

In RISA-3D, RISAFloor, and RISAFoundation the cursor now provides additional information regarding the cursor coordinates. As you move your cursor around on your screen, a box adjacent to your cursor will appear and populate with the coordinates of the cursor. The mouse coordinates that are displayed are the coordinates of the grid point or joint that is nearest to the cursor. These are the same coordinates displayed in the Status Bar. If you would like to view the coordinates using your cursor then you can toggle this new feature by going to File-Application Settings and on the General tab check click the check box to Show current location coordinates next to cursor…

January 20, 2016 | RISA-3D, RISAFloor ES, RISAFoundation, New

Why Did My Reinforcing Change in ACI 318-14?

The new ACI 318-14 code has been implemented into RISA-3D V14, RISAFloor V10, and RISAFoundation V8. One of the big changes between the ACI 318-11 and the ACI 318-14 was to minimum flexural reinforcement for one-way and two-way slabs, as well as foundation elements. In many cases this has the effect of increasing the required reinforcement in these elements. Here we will discuss why. ACI 318-11 In this code the flexural minimums are considered in Section 10.5. Sections 10.5.1 and 10.5.2 are where the minimum flexural reinforcement calculation is looked. For common values of reinforcement and concrete properties this would result in a rho = 0.0033. In Section 10.5.3 there is an additional provision that allows you to disregard 10.5.1 and 10.5.2 as long as the area of steel provided is at least 1/3 greater than required by analysis. There has always been a bit of gray area as to where this provision is applicable. In RISA this provision is applied to all beam and slab-type elements. ACI 318-14 This code re-arranged it’s sections to each element type and thus updated/clarified the language for each element. Section 7.6.1 & 8.6.1 Minimum flexural reinforcement in non-prestressed Slabs. For 60 ksi reinforcement…