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Civil and Environmental Engineering

California Polytechnic State University, San Luis Obispo

2016

Modal Assurance Criterion (MAC)

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Full-Text Articles in Architecture

Structural Damage Detection By Comparison Of Experimental And Theoretical Mode Shapes, William George Rosenblatt Mar 2016

Structural Damage Detection By Comparison Of Experimental And Theoretical Mode Shapes, William George Rosenblatt

Master's Theses

Existing methods of evaluating the structural system of a building after a seismic event consist of removing architectural elements such as drywall, cladding, insulation, and fireproofing. This method is destructive and costly in terms of downtime and repairs. This research focuses on removing the guesswork by using forced vibration testing (FVT) to experimentally determine the health of a building. The experimental structure is a one-story, steel, bridge-like structure with removable braces. An engaged brace represents a nominal and undamaged condition; a dis-engaged brace represents a brace that has ruptured thus changing the stiffness of the building. By testing a variety …