Campus Units

Civil, Construction and Environmental Engineering, Electrical and Computer Engineering, Center for Nondestructive Evaluation (CNDE)

Document Type

Conference Proceeding

Conference

SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring

Publication Version

Published Version

Publication Date

4-11-2017

Journal or Book Title

Proceedings of SPIE

Volume

10164

Issue

1016433

First Page

1016433-1

Last Page

1016433-9

Research Focus Area

Structural Engineering

DOI

10.1117/12.2261632

Conference Title

Active and Passive Smart Structures and Integrated Systems

Conference Date

March 25-29, 2017

City

Portland, OR

Abstract

A structural system consists of gravity and lateral load resisting components. Structural walls in the gravity system are typically designed to resist vertical loads only, and are assumed to be inactive to mitigate lateral loads. In this paper, we propose a novel multifunctional wall system, which is embedded with multiple-capillaries containing free-flowing fluids and can act as both a load carrying member and a Tuned Liquid Wall Damper (TLWD). Functioning similarly to a Tuned Liquid Column Damper (TLCD), the damping force of the proposed wall system is provided by the head loss of the fluid between each capillary. An analytical model is derived first to describe the dynamic behavior of the TLWD. The accuracy of the analytical model is verified using Computational Fluid Dynamics (CFD) simulations. The model is further used to compute the reduced response of an assumed primary structure attached with a TLWD to demonstrate the damping capability. Results show that TLWDs can effectively dissipate energy while occupying much less space in buildings compared to TLCDs.

Comments

This proceeding is published as Hao Wu, Liang Cao, An Chen, Simon Laflamme, "A novel tuned liquid wall damper for multi-hazard mitigation," Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 1016433 (11 April 2017); doi: 10.1117/12.2261632 Posted with permission.

Copyright Owner

Society of Photo-Optical Instrumentation Engineers (SPIE)

Language

en

File Format

application/pdf

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