April 29, 2024

Anchorage Design now available in RISAConnection

RISAConnection version 15 now provides engineers with an additional design capability of Anchorage Design. Anchorage design is per ACI 318-19 & ACI 318-19(22) and can be utilized under the Column Base Plate connection
module. For more information about this new feature, check out the video below:

Download RISAConnection v15

Tags: New, RISAConnection

August 2, 2011 | RISAFloor, New, Boundary Conditions

How to Assign Column Base Boundary Conditions in RISAFloor

Column boundary conditions are set in RISAFloor per the Splice Type that you have set in the Columns spreadsheet. For any column at the lowest floor level, the Splice checkbox will automatically be checked, indicating that a boundary condition will be set at the base. You may set the boundary condition to either pinned or fixed. This is controlled through the Splice Type. Setting the Splice Type to Moment creates a fixed boundary condition; setting it to Shear creates a pinned boundary condition. After solving your model and taking it into RISA-3D via the Director tool, you will be able to verify these boundary conditions. Note: After the initial export into RISA-3D, the splice type is no longer linked to the model. Therefore, you have the ability to modify these boundary conditions once in RISA-3D. This way, you have the freedom to release any restraint (in each of the six directions), rather than selecting just perfectly pinned or perfectly fixed for your lateral analysis…

January 29, 2020 | New, RISAConnection, Moment Connections

Flange Plate Column Cap Plate Moment Connection now Available

RISAConnection v11 now includes the ability to design Column to Beam Column Cap Flange Plate Moment Connections according to AISC 360. This widely requested feature allows users to define the beam as a wide flange and the column as either a wide flange, tapered wide flange or HSS tube. To begin, choose the connection type from the Moment > Flange Plates connection category. The basic theory behind flange plate moment connections (including the ones that already exist in RISAConnection) is that the moment developed within the beam is transferred as a force couple through the beam flanges into flange plates. These flange plates, in turn, transfer this force into the column through welds to the column flanges. In the Flange Plate Column Cap Plate Moment Connection, the force transfer is essentially the same however the top flange plate extends over the top of the column. The force developed within the top flange plate will be then be transferred directly into the column through welds at the top of the column. The force developed within the bottom flange plate will be transferred into the column in the same manner as an ordinary flange plate moment connection. In this configuration, the following…

September 7, 2021 | RISA-3D, New, RISAConnection, Steel Connections, Defining Connections: Beam and Column Splices Conn, Defining Connections: Column to Beam Connections, Defining Connections: Beam to Girder Connections, Integration

How to Define Steel Connections in RISAFloor & RISA-3D

One of the advantages of the RISA Building System is the ability to utilize and share model information (geometry, loading, etc.) between software packages. One such way, is the ability to define hot-rolled steel connections in RISAFloor and/or RISA-3D and then transfer them to RISAConnection for design. Once a model is created in RISAFloor/RISA-3D, users can assign connections and then transfer the connection to RISAConnection. During this process, the software will test whether the connection is valid based on the defined "Connection Rules". The proper definition of these "Connection Rules" is where many questions arise and understanding how this process will make steel connection design using RISA software a seamless process. Typical Workflow Users must define desired "Connection Rules" in the spreadsheet. Once the "Connection Rules" are defined, the rules can be assigned to the appropriate member ends in the model. Use the Member Ends > Connection Rules button located on the "Quick View" toolbar to view the assigned connection rules (color coded) directly on the model. You can also use the Member Label > Connection Rules button to graphically display the connection name. For specific information on assigning each of RISAConnection's eleven (11) available connection types, please review the…