Theses and Dissertations

Date of Award

5-2024

Document Type

Thesis

Degree Name

Master of Science in Engineering (MSE)

Department

Civil Engineering

First Advisor

Mohsen Amjadian

Second Advisor

Dumitru I. Caruntu

Third Advisor

Arturo Fuentes

Abstract

Tuned Mass Friction Dampers (TMFDs) are passive control systems designed to mitigate vibrations in civil structures subjected to extreme lateral forces such as windstorms and earthquakes. The objective of this thesis is to propose a new TMFDs with enhanced energy dissipation capability for seismic protection of multi-story frame buildings. This new TMFD is termed as “Tuned Mass Multi-Sliding Friction Damper” (TMMSFD) consisting of multiple masses connected to the primary structure through linear springs and while sliding relative to each other at multiple sliding surfaces. TMMSFD offers an improved damping mechanism with reduced stick-slip motion effects compared to standard TMFDs which suffer from these effects at low velocities when their dynamic states abruptly shift from sliding to sticking phases. In particular, during the sticking phase, standard TMFDs cannot store or dissipate the seismic input energy. It will be shown that the proposed TMMSFD can outperform standard TMFDs in energy dissipation.

Comments

Copyright 2024 Syed Muhammad Bilal Haider.

https://go.openathens.net/redirector/utrgv.edu?url=https://www.proquest.com/pqdtglobal1/dissertations-theses/numerical-study-new-tuned-mass-friction-damper/docview/3085314346/sem-2?accountid=7119

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