September 20, 2010
Use RISA to Consider Bi-Directional (Quartering) Wind Loading
RISA-3D automatically considers the complex wind combinations required by ASCE 7 using the wind load generator and the load combination generator.
September 14, 2010
How to Design Flexible Diaphragms in RISAFloor
When you model your building in RISAFloor, make sure that you define your slab edge as flexible. That will ensure that the entire contents of the diaphragm will use flexible behavior.
September 14, 2010
How to Model a Building on a Hill
When dealing with a sloping site, it is often necessary to step-down the bases of columns and walls along the length of a building. The example below illustrates how to model this in RISAFloor.
August 31, 2010
How Are Wind Loads Generated for Sloped Roofs?
RISAFloor is capable of automatically generating the wind loads on sloped roofs. Let’s look at an example of this with the model below:
August 27, 2010
What is the Dyn Load Category in RISAFloor?
The Dyn Load represents the additional load that must be included in the calculation of the total seismic weight.
August 26, 2010
How to Design Wood I-Joists with RISAFloor
RISAFloor has the capability to design wood I-Joists based on tables provided by the manufacturer, or provided by you. When modeling beams in RISAFloor, choose the Wood Product material, and choose a joist manufacturer from the shape group.
July 30, 2010
Circular Slab Generation in RISAFoundation
RISAFoundation now has the ability to automatically generate a circular slab with just a few easy clicks. Using the generator the program will create the mat slab and tank loading all in one easy step. Go to the Insert menu and select "Circular Foundation".
July 29, 2010
How to Model a Semi-Rigid Diaphragm in Standalone RISA-3D
In standalone RISA-3D models (those not integrated from RISAFloor), Semi-Rigid diaphragms cannot be directly defined. Only the Rigid diaphragm type is available by default. To create a semi-rigid diaphragm in a standalone RISA-3D model, users must define plate elements manually. If you’re dealing...
July 28, 2010
How Do Plates Connect to Members?
In order to understand the interaction between plates and members it is important that you know the basics of Physical Members and Plate Connectivity. Remember that plates only connect to other elements at their corners, and you will instantly recognize why the model below will not work as intended.