潘鹏等编著的《在线混合实验进展--理论与应用(精)》旨在讲述在线混合实验方法的基本理论和工程应用。介绍了常规的在线混合实验的基础知识，也介绍了在线混合实验在网络实验和实时实验方面的进展。全书共9章节。《在线混合实验进展--理论与应用(精)》可供工程抗震研究相关人员在科研和工作中使用。

在线混合实验方法是研究工程结构抗震最有效的方法之一，近30年来在线混合实验技术发展迅速，但关于在线混合实验的书籍在国内外均较少。潘鹏等编著的《在线混合实验进展--理论与应用(精)》旨在介绍在线混合实验技术的基本理论和工程应用，不仅介绍了常规在线混合实验，也介绍了在线混合实验在网络化以及复集有线元程序接合等方面的发展。

《在线混合实验进展--理论与应用(精)》可供工程抗震实验研究人员在教学和科研工作中使用。

CHAPTER 1Introduction

1.1 Background, objective, and challenge

1.2 Organization

REFERENCES

CHAPTER 2Basics of Time Integration Algorithms

2.1 Introduction

2.2 Principle of time integration algorithms and properties

2.3 Development of time integration algorithms

 2.3.1 Linear multi-step methods

 2.3.2 Newmark’s family methods

 2.3.3 Collocation methods

 2.3.4 α-family methods

 2.3.5 ρ-family methods

 2.3.6 Mixed implicit-explicit methods

2.4 Numerical characteristics analysis of time integration algorithms

 2.4.1 Spectral stability

 2.4.2 Accuracy analysis

2.5 Conclusions

REFERENCES

CHAPTER 3Typical Time Integration Algorithms

3.1 Introduction

3.2 Analysis of typical time integration algorithms

 3.2.1 Central difference method

 3.2.2 Newmark’s method

 3.2.3 Hilber-Hughes-Taylor (HHT)-αmethod

 3.2.4 Generalized-αmethod

 3.2.5 Implicit-explicit method

 3.2.6 Modal truncation technique

 3.2.7 Integral form of existing algorithms

 3.2.8 State space procedure

3.3 Applications for online hybrid test (pseudodynamic test)

 3.3.1 Applications of central difference method

 3.3.2 Hardware-dependent iterative scheme

 3.3.3 Newton iterative scheme based on HHT-αmethod

 3.3.4 α-operator-splitting (OS) method

 3.3.5 Predictor-corrector implementation of generalized-αmethod (IPC-ρ∞)

 3.3.6 Ghaboussi predictor-corrector method

3.4 Conclusions

REFERENCES

CHAPTER 4Online Hybrid Test Using Mixed Control

4.1 Introduction

4.2 Presentation of the online test system

 4.2.1 Loading system

 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 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

REFERENCES

CHAPTER 5Internet 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

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

REFERENCES

CHAPTER 6Internet 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 socket mechanism

 6.2.4 Incorporation of finite element programs using restart

 capability

6.3 Preliminary investigations of separated-model framework

 6.3.1 Seismic simulation of an 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

 6.4.1 0Time efficiency of experiment

6.5 Conclusions

REFERENCES

CHAPTER 7Internet Online Hybrid Test Using Peer-to-Peer Framework

7.1 Introduction

7.2 Development of peer-to-peer (P2P) framework

 7.2.1 Design of P2P framework

 7.2.2 Iteration by quasi-Newton method

 7.2.3 P2P Internet onlinehybrid test scheme

 7.2.4 Incorporation of general-purpose finite element

 (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 degrees of freedom 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

REFERENCES

CHAPTER 8Application of online hybrid test in engineering practice

8.1 Introduction

8.2 Application example of 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 Conclusions

CHAPTER 9Summary and Conclusions

9.1 Summary and conclusions

9.2 Time integration algorithms

9.3 Online hybrid test using mixed control

9.4 Internet Online Hybrid Test Using Host-Station Framework

9.5 Separated-model framework and its demonstration examples

9.6 Peer-to-peer framework and its preliminary demonstration test

9.7 Application of online hybrid test in engineering practice

APPENDIX ⅠList of Exiting Time Integration Algorithms

APPENDIX ⅡImplementation of OS Method