Response Control of Seismically Excited Buildings: Application of Viscous Damping and Negative Stiffness Control Algorithm

07 Jun 2012 | Publications | Contributor(s): Huan Hu

This thesis focuses on the application of the viscous damping and negative stiffness (VDNS) algorithm to the seismic response control of buildings. It provides an effective option for the semi-active …

http://nees.org/resources/4498

Development and Validation of a Robust Actuator Motion Controller for Real-time Hybrid Simulation Applications

08 Feb 2012 | Active Documents | Contributor(s): Xiuyu Gao, Nestor Eduardo Castaneda-Aguilar, Shirley Dyke

Real time hybrid simulation (RTHS) has increasingly been recognized as a powerful testing methodology to evaluate structural components and systems under realistic operating conditions. RTHS is a …

http://nees.org/resources/4251

The Development of Fragility Relationships for Controlled Structures

04 Aug 2011 | Historical Documents | Contributor(s): Shirley Dyke

nbsp; To mitigate the dynamic effects of earthquakes in structures, several response nbsp;modification strategies have been developed, including implementation of passive, active, and semiactive …

http://nees.org/resources/3357

Response Modification of Buildings and Bridges: Comparative Studies in Seismic Control

04 Aug 2011 | Historical Documents | Contributor(s): Shirley Dyke

nbsp; This thesis presents the results of research to evaluate the effectiveness of modern control nbsp;strategies for the mitigation of earthquake induced hazards in building and bridge …

http://nees.org/resources/3359

Fault-Tolerant Control Design for Smart Damping Systems

01 Aug 2011 | Historical Documents | Contributor(s): Shirley Dyke

nbsp; This thesis contains a study of the effects of and develops a procedure for dealing with nbsp;control component failure in smart damping systems. The procedure is developed by nbsp;studying …

http://nees.org/resources/3361

Phase I Benchmark Control Problem for Seismic Response of Cable-Stayed Bridges

28 Jul 2011 | Computational Models | Contributor(s): Shirley Dyke, Juan M Caicedo

This computational model contains the original files for the Phase I Benchmark Control Problem for Seismic Response of Cable-Stayed Bridges. Dyke, S. J., Caicedo, J. M., Turan, G., Bergman, L. A. …

http://nees.org/resources/3246

Report on the Nonlinear Full Scale Building Control Problem

23 Jan 2011 | Publications | Contributor(s): Shirley Dyke

This report presents the extended problem definition of a set of benchmark control problems for seismically excited nonlinear buildings. Focusing on three typical steel structures, 3-, 9- and …

http://nees.org/resources/2403

Report on the Linear Full Scale Building Control Problem

23 Jan 2011 | Publications | Contributor(s): Shirley Dyke

This report presents the extended problem definition for the next generation structural control benchmark problem for seismically excited buildings. Focusing on a 20-story steel structure …

http://nees.org/resources/2401

Report on the Linear Active Tendon Control Problem

23 Jan 2011 | Publications | Contributor(s): Shirley Dyke

In a companion report, a problem definition was presented for a well-defined benchmark structural control problem for a model building configured with an active mass driver (nees.org). This second …

http://nees.org/resources/2399

Report on the Cable-stayed Bridge Control Problem - Phase 2

23 Jan 2011 | Publications | Contributor(s): Shirley Dyke

This report presents the extended problem definition for the second generation of benchmark structural control problems for cable-stayed bridges. The benchmark problem is based on the Bill Emerson …

http://nees.org/resources/2416

Report on the Base Isolation Control Problem - Part 1

23 Jan 2011 | Publications | Contributor(s): Shirley Dyke

This report presents the benchmark problem definition for seismically excited base- isolated buildings. The objective of this benchmark study is to provide a well defined base isolated building with …

http://nees.org/resources/2418

Report on the Base Isolation Control Problem - Part 2

23 Jan 2011 | Publications | Contributor(s): Shirley Dyke

This Phase II report attempts to galvanize research efforts on control of base isolated buildings with nonlinear isolation systems. Primarily, friction and hysteretic lead-rubber-bearing (LRB) …

http://nees.org/resources/2420

Report on the Highway Bridge Control Problem - Phase 1

23 Jan 2011 | Publications | Contributor(s): Shirley Dyke, Anil Kumar Agrawal

This report presents the extended problem definition of the benchmark structural control problem for the seismically excited highway bridge. The benchmark problem is based on the newly constructed 91 …

http://nees.org/resources/2422

Report on the Highway Bridge Control Problem - Phase 2

23 Jan 2011 | Publications | Contributor(s): Shirley Dyke, Anil Kumar Agrawal

Recently, a benchmark problem has been developed to study seismically excited highway bridges. In this second phase of the aforementioned study, the bridge is isolated both at the abutments and at …

http://nees.org/resources/2424

Report on the Linear Active Mass Driver Control Benchmark Problem

22 Jan 2011 | Publications | Contributor(s): Shirley Dyke

This report presents the extended problem definition for a benchmark structural control problem. The structure considered -- chosen because of the widespread interest in this class of systems (Soong …

http://nees.org/resources/2386

Report on the Cable-stayed Bridge Control Problem - Phase 1

21 Jan 2011 | Publications | Contributor(s): Shirley Dyke

This report presents the problem definition for the first generation of benchmark structural control problems for cable-stayed bridges. The benchmark problem is based on a cable-stayed bridge that is …

http://nees.org/resources/2414

Seismic Fragility Relationships for Civil Structures with Semi-Active Control Devices

05 Jan 2011 | Publications | Contributor(s): Waleed Barnawi

Development of techniques for seismic mitigation has become increasingly important for communities throughout the world. Of the many available techniques, structural control has emerged as a …

http://nees.org/resources/2181

Control Strategies for 3D Smart Base Isolation Sysytems Using Modal and Nodal Approaches

26 Dec 2010 | Publications | Contributor(s): Yumei Wang

Application of control technologies to structures is expected to be able to enhance a structure’s performance in response to natural hazards. Specifically, smart base isolation systems, which …

http://nees.org/resources/1752

Acceleration Feedback Strategies for Active and Semiactive Control Systems: Modeling, Algorithm Development, and Experimental Verification

16 Dec 2010 | Publications | Contributor(s): Shirley Dyke

Most of the current research on active structural control for aseismic protection has been based on either full state feedback strategies or velocity feedback strategies. However, accurate …

http://nees.org/resources/1732

Database for Structural Control and Monitoring Benchmark Problems

05 Dec 2010 | Databases | Contributor(s): Shirley Dyke, Anil Kumar Agrawal, Juan M Caicedo, Richard Christenson, Henri Gavin, Erik Johnson, Satish Nagarajaiah, Sriram Narasimhan, Bill Spencer

Tremendous progress has been made over the last two decades toward making structural monitoring and control a viable technology for enhancing structural functionality and safety against natural …

http://nees.org/resources/1687