Bridge Vibration and Controls

Bridge Vibration and Controls
Author: H. Xia
Publisher: Nova Science Publishers
Total Pages: 0
Release: 2012
Genre: Railroad bridges
ISBN: 9781621008682

Includes bibliographical references and index.

Vibration Control in Bridges

Vibration Control in Bridges
Author: Kenneth Crawford
Publisher:
Total Pages: 0
Release: 2019
Genre: Electronic books
ISBN:

The purpose of this chapter is to examine methods to control induced vibrations in steel and reinforced concrete (RC) highway bridges caused by three primary vibration forces, specifically wind, heavy traffic, and seismic events. These forces manifest their effects in bridge structural elements to different degrees, from small vibrations to large forces causing destruction of the bridge. This chapter examines bridge failures caused by induced vibrations, from wind loading, traffic loading, and seismic vibration loading and presents solutions developed to compensate for these vibrations. Bridge failures from seismic vibrations are the most destructive and are described in two major earthquakes in California. A major bridge failure from induced wind vibrations is considered, and two bridge failures caused by vibrations from heavy traffic loading are described. With lessons learned from these and other bridge failures, new design criteria and methods have been established to reduce and mitigate the destructive forces of induced vibrations. Significant changes in bridge structural engineering codes and design philosophy were made. While bridge structural design improvements have reduced the effects of wind, seismic, and heavy traffic vibrations, further research is needed to mitigate the long-term effects of vibrations on bridge performance and structural integrity.

Wavelet-Based Vibration Control of Smart Buildings and Bridges

Wavelet-Based Vibration Control of Smart Buildings and Bridges
Author: Hojjat Adeli
Publisher: CRC Press
Total Pages: 240
Release: 2022-09-16
Genre: Technology & Engineering
ISBN: 1000714926

Earthquakes, bridge collapses, and other natural disasters have dominated news coverage in the last few years. Aging infrastructure needs to be rehabilitated and new infrastructure needs to be designed differently. Presenting a highly innovative, modern approach verging on the futuristic, Wavelet-Based Vibration Control of Smart Buildings and Bridges discusses a new generation of building and bridge structures that not only withstands [generation is singular] the destructive effects of nature but is also impact and explosion resistant. Based on the groundbreaking work of Hojit Adeli, the book introduces the new mathematical concept of wavelets into the field of structural vibration control. It presents a new control algorithm for robust control of smart civil structures subjected to destructive environmental forces, such as earthquakes and wind. It then discusses a new hybrid control system, the hybrid tuned liquid column damper (TLCD) system. The new hybrid control system, which combines passive and semi-active control systems, is intended to achieve increased reliability and maximum operability of the control system during power failure and to eliminate the need for a larger power requirement. The great majority of papers published in this area of active structural vibration control deal with small or academic problems. The models in this book have been tested and their effectiveness evaluated extensively on small problems for the sake of comparison with other methods and results reported in the literature. The authors go one step further and apply them to realistic and large building and bridge structures to demonstrate the applicability of the new smart technology to large real-world civil structures. Balancing coverage between theory and application, the book demonstrates the benefits of the new smart technology in the design of structures that are safer and more sustainable.

Cable Vibrations in Cable-stayed Bridges

Cable Vibrations in Cable-stayed Bridges
Author: Elsa de Sá Caetano (autor.)
Publisher: IABSE
Total Pages: 191
Release: 2007
Genre: Cable-stayed bridges
ISBN: 3857481153

The present book provides a comprehensive survey on the governing phenomena of cable vibration, both associated with direct action of wind and rain: buffeting, vortex-shedding, wake effects, rain-wind vibration; and resulting from the indirect excitation through anchorage oscillation: external and parametric excitation. Methodologies for assessment of the effects of those phenomena are presented and illustrated by practical examples. Control of cable vibrations is then discussed and state-of-art results on the design of passive control devices are presented.

Footbridge Vibration Design

Footbridge Vibration Design
Author: Elsa Caetano
Publisher: CRC Press
Total Pages: 203
Release: 2009-05-28
Genre: Technology & Engineering
ISBN: 1482266512

Footbridge Vibration Design presents new approaches, numerical tools and experimental tools for assessing and controlling pedestrian effects. Moreover, it includes a number of reference cases dealing with design and control. Focussed on the translation of these findings into practical recommendations, guidelines, codes and design tools for the desi

Vibration Control of Structures

Vibration Control of Structures
Author: Cyril Fischer
Publisher: BoD – Books on Demand
Total Pages: 106
Release: 2023-01-18
Genre: Technology & Engineering
ISBN: 1839688882

Structural vibration control is designed to suppress and control any unfavorable vibration due to dynamic forces that could alter the performance of the structure. Although many vibration control schemes have been investigated so far, additional questions involving their practical application remain to be studied. This book provides the reader with a comprehensive overview of the state of the art in vibration control and safety of structures, in the form of an easy-to-follow, article-based presentation that focuses on selected major developments in this critically important area.

Proceedings of SECON’21

Proceedings of SECON’21
Author: Giuseppe Carlo Marano
Publisher: Springer Nature
Total Pages: 1127
Release: 2021-09-03
Genre: Technology & Engineering
ISBN: 3030803120

This book gathers peer-reviewed contributions presented at the International Conference on Structural Engineering and Construction Management (SECON’21), held on 12-15 May 2021. The meeting served as a fertile platform for discussion, sharing sound knowledge and introducing novel ideas on issues related to sustainable construction and design for the future. The respective contributions address various aspects of numerical modeling and simulation in structural engineering, structural dynamics and earthquake engineering, advanced analysis and design of foundations, BIM, building energy management, and technical project management. Accordingly, the book offers a valuable, up-to-date tool and essential overview of the subject for scientists and practitioners alike, and will inspire further investigations and research.

Vibration Control of Active Structures

Vibration Control of Active Structures
Author: A. Preumont
Publisher: Springer Science & Business Media
Total Pages: 376
Release: 2002-02-28
Genre: Technology & Engineering
ISBN: 1402004966

My objective in writing this book was to cross the bridge between the structural dynamics and control communities, while providing an overview of the potential of SMART materials for sensing and actuating purposes in active vibration c- trol. I wanted to keep it relatively simple and focused on systems which worked. This resulted in the following: (i) I restricted the text to fundamental concepts and left aside most advanced ones (i.e. robust control) whose usefulness had not yet clearly been established for the application at hand. (ii) I promoted the use of collocated actuator/sensor pairs whose potential, I thought, was strongly underestimated by the control community. (iii) I emphasized control laws with guaranteed stability for active damping (the wide-ranging applications of the IFF are particularly impressive). (iv) I tried to explain why an accurate pred- tion of the transmission zeros (usually called anti-resonances by the structural dynamicists) is so important in evaluating the performance of a control system. (v) I emphasized the fact that the open-loop zeros are more difficult to predict than the poles, and that they could be strongly influenced by the model trun- tion (high frequency dynamics) or by local effects (such as membrane strains in piezoelectric shells), especially for nearly collocated distributed actuator/sensor pairs; this effect alone explains many disappointments in active control systems.