Structural Dynamics

Introduction

Dynamic loads such as wind and earthquake pose a variety of problems in structures. This page collects various demonstration videos that illustrate different concepts in structural dynamics and behavior of structures subjected to dynamic loads.

What is Tuned Mass Damper?

This video introduces Tuned Mass Dampers in Skyscapers.

Source: YouTube Video @ Practical Engineering

 

Moment Resisting Frame Test - W24 - Test 1

This video shows test of moment resisting frame (W24) at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Moment Resisting Frame Test - W24 - Test 2

This video shows test of moment resisting frame (W24) at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Moment Resisting Frame Test - W24 - Test 3

This video shows test of moment resisting frame (W24) at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Moment Resisting Frame Test - W24 - Test 4

This video shows test of moment resisting frame (W24) at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Moment Resisting Frame Test - W24 - Test 5

This video shows test of moment resisting frame (W24) at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Moment Resisting Frame Test - W24 - Test 6

This video shows test of moment resisting frame (W24) at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Ring-Shaped Panel Test

This video shows test of Ring-Shaped Panel at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Ring-Shaped Panel Test

This video shows test of Ring-Shaped Panel at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Solid Steel Plate Shear Wall Test

This video shows test of solid steel plate shear wall (SPSW) at Virginia Tech

Source: YouTube Video @ Matt Eatherton

 

Un-stiffened Moment Connection Test

This video shows test of un-stiffened moment connection with deep beam

Source: YouTube Video @ Matt Eatherton

 

Low-Cycle Fatigue Bend Test - Bare Steel

This video shows a low cycle fatigue test conducted with constant inelastic curvature / strain cycles.  The coupon is a 3″ wide x 24″ long piece of flange material cut from a W24x62 beam.  The specimen has a smooth circular notch cut on both sides with radius equal to 1″.  This notch, although not visible in the video, increases the stress triaxiality and therefore causes the fracture to initiate at the center of the specimen.

Source: YouTube Video @ Matt Eatherton