10 results found

December 21, 2021 | Tips & Tricks

Why does my slab deflection increase using ACI 318-19?

Recent changes to the ACI 318-19 code provide an updated calculation for the effective moment of inertia in concrete slabs, which leads to increased slab deflection. Read More

December 17, 2021 | Tips & Tricks

Automatic Calculation of Long-Term Load Factors in ADAPT-Builder

ADAPT-Builder v21 now includes the option to have the program automatically calculate long-term load factors using two different methodologies, the detailed calculations and ACI multiplier method. Read More

June 29, 2021 | Tips & Tricks

Batch Printing & Beam Deflection Ratio Checks Now Available in RISACalc v2.1!

RISACalc now provides deflection ratio checks for beam components and the ability to print multiple detail reports at once. Read More

June 28, 2018 | Tips & Tricks

A Deeper Understanding of Deflection and Member Deflection Ratios

There are many different types deflection values calculated by RISA-3D. This article gives a deeper dive into each. Read More

June 21, 2018 | Tips & Tricks

Beam Deflection Ratio Options

RISA-3D v16.0.4 introduces an enhancement that allows for more control over the beam deflection ratio through Deflection Ratio Options. Read More

April 26, 2018 | Tips & Tricks

Long Term Deflection in RISAFloor ES

RISAFloor ES now has the ability to check long term deflection with creep and shrinkage. Read More

September 16, 2015 | Tips & Tricks

How RISA-3D Calculates Member Deflection Ratios

This article takes a look at how RISA-3D calculates member deflection ratios. Read More

July 1, 2014 | Tips & Tricks

Viewing the Deflected Shape in RISAFloor

The deflected shape is really helpful to understanding your model’s behavior. You can view the deflected shape of your model in RISAFloor. Just change the view to the Isometric view and click on the Read More

September 6, 2013 | Tips & Tricks

Why Are The Steel Beam Deflections So Large?

When solving a RISA-3D model with hot rolled steel members using AISC 360 code, some member deflections are 20% larger than expected due to a stiffness reduction applied to certain members. Read More

May 15, 2013 | Tips & Tricks

How can I find the deflection of plates?

Below is a model of a flat concrete slab made of plates. In order to ensure adequate serviceability of the slab, you may need to check the deflection of the slab between columns. Read More