Development of online hybrid testing : theory and applications to structural engineering / Peng Pan, Tsinghua University, China, Tao Wang, Institute of Engineering Mechanics, China Earthquake Administration, China, Masayoshi Nakashima, Kyoto University, Japan.

Format:

Book

Author/Creator:

Pan, Peng, author.

Wang, Tao, author.

Nakashima, Masayoshi, author.

Language:

English

Subjects (All):

Structural analysis (Engineering)--Computer simulation.

Structural analysis (Engineering).

Physical Description:

1 online resource (0 p.)

Edition:

1st ed.

Place of Publication:

Amsterdam, [Netherlands] : Butterworth-Heinemann, 2016.

Language Note:

English

Summary:

Development of Online Hybrid Testing: Theory and Applications to Structural Engineering provides comprehensive treatments of several topics pertinent to substructure online hybrid tests. Emphasis has been placed on explaining the three frameworks:- the host-station framework,- separated model framework and- peer to peer framework These have been developed within the Internet environment and are particularly suitable for distributed hybrid testing. In order to help readers to understand the essence of online hybrid testing and further to build up their own systems, an engineering practice has been introduced at the end of this book with the source code appended. Development of Online Hybrid Testing: Theory and Applications to Structural Engineering is primarily written for readers with some background in structural dynamics, finite elements, and computer science. Material that has previously only appeared in journal articles has been consolidated and simplified which provides the reader with a perspective of the state-of-the-art.- Presents basics and implementations of time integration algorithms for online hybrid tests, along with the applications for real engineering projects- Includes current progress on the development of substructure online hybrid tests as a means of investigating the seismic behaviour of large-scale structures- Provides source code for the example tests

Contents:

Front Cover

Development of Online Hybrid Testing: Theory and Applications to Structural Engineering

Copyright

Contents

Preface

Chapter 1: Introduction

1.1. Background, Objective, and Challenge

1.2. Organization

References

Chapter 2: Basics of the Online Hybrid Test

2.1. Introduction

2.2. Basic Concepts and Applications

2.2.1. Test Methodology

2.2.2. Research Applications

2.2.3. Advantages and Constraints

2.3. Implementation and Major Components

2.3.1. Implementation

2.3.2. Major Components [27]

2.4. Single DOF Structure with Explicit Scheme

2.4.1. Test Structure

2.4.2. Test Method

2.4.3. Test Results

2.5. Substructure Test with OS Scheme

2.5.1. Test Structure

2.5.2. Test Method

2.5.3. Test Results

2.6. Conclusions

Chapter 3: Time Integration Algorithms for the Online Hybrid Test

3.1. Introduction

3.2. Principle of Time Integration Algorithms and Properties

3.3. Development of Time Integration Algorithms

3.3.1. Linear Multi-Step Methods

3.3.2. Newmark's Family Methods

3.3.3. Collocation Methods

3.3.4. α-Family Methods

3.3.5. ρ-Family Methods

3.3.6. Mixed Implicit-Explicit Methods

3.4. Numerical Characteristics of Time Integration Algorithms

3.4.1. Spectral Stability

3.4.2. Accuracy Analysis

3.5. Analysis of Typical Time Integration Algorithms

3.5.1. Central Difference Method

3.5.2. Newmark's Method

3.5.3. HHT-α Method

3.5.4. Generalized-α Method

3.5.5. Implicit-Explicit Method

3.5.6. Modal Truncation Technique

3.5.7. Integral Form of Existing Algorithms

3.5.8. State Space Procedure

3.6. Applications for an Online Hybrid Test

3.6.1. Applications of Central Difference Method

3.6.2. Hardware-Dependent Iterative Scheme

3.6.3. Newton Iterative Scheme Based on HHT-α Method.

3.6.4. α-OS Method

3.6.5. Predictor-Corrector Implementation of Generalized-α Method (IPC-ρ)

3.6.6. Ghaboussi Predictor-Corrector Method

3.7. Conclusions

Chapter 4: The Online Hybrid Test Using Mixed Control

4.1. Introduction

4.2. Presentation of the Online Test System

4.2.1. Loading System

Quasi-Static Jacks and Hydraulic Pump Systems

Controllers

Combination of PC for Control and PC for Operation

Characteristics of Mixed Control

4.2.2. Base-Isolated Structure Model

4.2.3. Test Setup

4.3. Displacement-Force Combined Control

4.3.1. Static Test for Combined Control

4.3.2. Algorithm of Online Test Using Displacement-Force Combined Control

4.3.3. The Online Test Using Displacement-Force Combined Control

4.4. Force-Displacement Switching Control

4.4.1. Static Test for Displacement-Force Switching Control

4.4.2. Algorithm of Displacement-Force Switching Control

4.4.3. Online Test Using Displacement-Force Switching Control

4.5. Conclusions

Chapter 5: An Internet Online Hybrid Test Using Host-Station Framework

5.1. Introduction

5.2. Presentation of the Internet Online Test System

5.2.1. System Framework

5.2.2. Internet Data Exchange Interface

Data Exchange Solution

Generic Data Format

Validation of Interface

Data Exchange Algorithm

Practical Environment Using Interface

5.3. Accommodation with Implicit Finite Element Program

5.3.1. Importance of Stiffness Prediction

5.3.2. Proposed Prediction Method

5.4. Internet Online Test of Base-isolated Structure

5.4.1. Base-Isolated Structure Model

5.4.2. Test Setup and Test Specimen

5.4.3. Test Results

5.5. Conclusions

Chapter 6: Internet Online Hybrid Test Using Separated-Model Framework

6.1. Introduction

6.2. Development of Separated-model Framework.

6.2.1. Design of Separated-Model Framework

6.2.2. System Implementation

6.2.3. High-Speed Data Exchange Scheme Using a Socket Mechanism

6.2.4. Incorporation of FEM Programs Using Restart Capability

6.3. Preliminary Investigations of Separated-model Framework

6.3.1. Seismic Simulation of a One-Story Braced Frame

6.3.2. Seismic Simulation of a Three-Story Braced Frame

6.4. Distributed Online Hybrid Test on a Base-isolated Building

6.4.1. Prototype Structure

6.4.2. Numerical Simulation of Superstructure

6.4.3. Specimen for Base-Isolation Layer

6.4.4. Specimen for Retaining Walls

6.4.5. Test Environment Design

6.4.6. Elastic Properties of Structure

6.4.7. Pushover Analysis

6.4.8. Quasi-Static Test

6.4.9. Earthquake Response Simulation

6.4.10. Time Efficiency of Experiment

6.5. Conclusions

Chapter 7: An Internet Online Hybrid Test Using Peer-to-Peer Framework

7.1. Introduction

7.2. Development of P2P Framework

7.2.1. Design of P2P Framework

7.2.2. Iteration by Quasi-Newton Method

7.2.3. P2P Internet Online Hybrid Test Scheme

7.2.4. Incorporation of General-Purpose FEM Program

7.3. Verification Test of Base-isolated Structure

7.3.1. Structure Model and Substructuring

7.3.2. Internet Online Hybrid Test Environment

7.3.3. Test Setup and Test Specimen

7.3.4. Test Results

7.4. Convergence Criteria on P2P Internet Online Hybrid Test System Involving Structural Nonlinearities

7.4.1. Introduction

7.4.2. Investigation of Convergence Criteria and Tolerance

7.4.3. Examination on Type of Divisions into Substructures

7.4.4. Number of DOF on Boundaries

7.4.5. Investigation on Initial Stiffness

7.4.6. Summary

7.5. Numerical Characteristics of P2P Predictor-Corrector Procedure

7.5.1. Introduction.

7.5.2. Recursive Matrix of Two-Round Quasi-Newton Test Scheme

7.5.3. Stability Characteristics

7.5.4. Accuracy Characteristics

7.6. Conclusions

Chapter 8: Application of an Online Hybrid Test in Engineering Practice

8.1. Introduction

8.2. Application Example of a Conventional Online Hybrid Test

8.2.1. Project Brief

8.2.2. Prototype and Substructures

8.2.3. Dynamics of the Retrofitted Structure

8.2.4. Configuration of the Hybrid Test System

8.2.5. Loading Scheme

8.2.6. Input Ground Motions and Intensity

8.2.7. Measurement Scheme

8.2.8. Test Results

8.3. Application Example of P2P Internet Online Hybrid Test

8.3.1. Project Brief

8.3.2. Target Structure

8.3.3. Substructures

8.3.4. Improved Test Scheme of P2P Framework

8.3.5. Numerical Analyses by P2P Framework

8.3.6. Distributed Test Environment

8.3.7. Implementation of Tested Substructures

8.3.8. Distributed Test

8.3.9. Verification of P2P Framework

8.3.10. Efficiency of P2P Framework

8.3.11. Practical Evaluation of Collapse Limit of the Frame

8.3.12. Complex Behavior of Column Bases

8.4. Summary and Conclusions

Chapter 9: Summary and Conclusions

9.1. Time Integration Algorithms

9.2. Online Hybrid Test Using Mixed Control

9.3. Internet Online Hybrid Test Using Host-Station Framework

9.4. Separated-Model Framework and Its Demonstration Examples

9.5. P2P Framework and Its Preliminary Demonstration Test

9.6. The Application of Online Hybrid Test in Engineering Practice

Appendix A: List of Exiting Time Integration Algorithms

Appendix B: Implementation of the OS Method

Index.

Notes:

Description based upon print version of record.

Includes bibliographical references at the end of each chapters and index.

Description based on online resource; title from PDF title page (ebrary, viewed November 27, 2015).

ISBN:

9780128033920

0128033924

9780128033784

0128033789

OCLC:

932328898