Introduction

This lesson explains two methods for distributing shear forces in Shearwalls: capacity-based and deflection-based distribution. Capacity-based distribution is a simpler approximation that assigns forces based on segment length, while deflection-based distribution iteratively adjusts forces to ensure equal deflection across all segments. Although deflection-based distribution is considered more accurate, it can sometimes result in design failures that do not appear in capacity-based calculations. The video demonstrates these methods using Shearwalls Program, emphasizing that engineers must use their judgment to interpret results and determine necessary design modifications.

Learning Outcomes

By the end of this lesson, you will be able to:

• Compare and contrast capacity-based and deflection-based shear force distribution methods in shearwall design.
• Explain how each distribution method affects shearwall deflection and structural performance.
• Analyze the implications of using capacity-based vs. deflection-based distribution in design decisions and potential failure scenarios.
• Apply Shearwalls Program settings to select and evaluate different shear force distribution methods in shearwall analysis.

Instructional Video

Video Run Time: 05:41 minutes

This video utilizes one project file and it is available for download below.