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Particle Damping Technology Based Structural Control
Author(s)/Editor(s): Xilin Lu Sami F. Masri Zheng Lu | Size: 20 MB | Format:PDF | Quality:Original preprint | Publisher: springer | Year: 2020 | pages: 375 | ISBN: 978-7-111-59964-7 - 978-981-15-3499-7 - 2366-2603 - 2366-259X
In recent years, natural disasters, such as earthquakes and typhoons, have occurred frequently, causing serious damage to the structure. In order to enhance the resistance of structures against natural catastrophes, especially to attenuate their structural response under earthquake and wind loads, vibration control technology is applied on structures as an effective method. Particle damping technology is a kind of vibration reduction technology which consumes the vibration energy of the system by friction and impact between tiny particles filled in a finite enclosed space of the vibration cavity. It has been widely used in mechanical engineering, aerospace engineering and other fields, and its application on civil engineering has been expanding.
The Chinese Book is funded by National Science and Technology Academic Monograph Publishing Fund (2017). The English version is the update version.
This book systematically introduces particle damping technology, which can be utilized to effectively mitigate the seismic-induced and wind-induced vibration of various structures. The research achievements pertaining to this technology are comprehensively presented in this book. The 9 chapters in the book can be divided into 3 main aspects, first of all, in Chaps. 1 and 2, the book gives a detailed introduction and comprehensive description of structural vibration control technology and particle damping technology utilized in civil engineering, and provides a newly efficacious approach for the mitigation of earthquake-induced and wind-induced vibrations generated in high-rise buildings. The second part is illustrated in Chaps. 3–7, systematically theoretical analysis and practical simulation method for particle impact dampers are proposed, as well as demonstrated the extensive shaking table test and wind tunnel test on particle impact dampers applied to civil structures, which are conducive to understanding the damping mechanisms and optimal working conditions of particle impact dampers. In Chaps. 8 and 9, profound discussions are carried out on the future perspectives of particle damping technology, especially emphasized on studying and developing semi-active particle damping technology, and established the guidelines for optimization design of particle impact dampers. Some distinct features of this book can be summarized as follows:
• The elaborated simulation model based on discrete element method and the simplified simulation model based on equivalent principles are demonstrated, the models are verified by corresponding experimental results.
• The steady-state responses of particle impact dampers under various scenarios are illustrated.
• The vibration attenuation effects of particle dampers subjected to different dynamic loads have been intensively studied, by which the damping mechanism and the “global” measures that are used to evaluate the damping performance are proposed.
• The shaking table test and wind tunnel test have been conducted to verify the proposed simulation methods, and the satisfactory damping performance of
particle dampers has been corroborated.
• The optimization design guidelines of particle impact dampers are provided.
• The semi-active particle damping technology in which the primary system is subjected to non-stationary excitations is preliminary explored.
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Dynamics of Structures has been well received in the 21 years since it was first published. It continues to be used as a textbook at universities in the United States and many other countries, and enjoys a wide professional readership as well. Translations in Japanese, Korean, Chinese, Greek, Spanish,Persian, and Turkish have been published. The SI version of the 4th edition was published in 2015.
Preparation of the fifth SI edition provided me with an opportunity to improve, expand, and update the book.
Chapter 20 has been expanded in a major way; Chapters 7, 9, 13, and 18 have also been expanded; Chapter 11 underwent significant revision; and Chapters 22 and 23 have been updated.
Specific changes include:
• Two new parts, B and C, have been added to Chapter 20, which is now more than twice its previous size. These additions were motivated by the increasing use of nonlinear response history analyses (RHAs) of buildings in professional practice. Discussed in Part B are several issues that arise in modeling of the overall structure as well as structural elements for nonlinear RHAs. Part C is concerned with selection and modification of recorded ground motions to define the excitations for which seismic demands on structures are to be determined by nonlinear RHAs. A “hot” topic for research since 1998, it has been included in a textbook for the first time.
• Chapter 13 has been extended to include a topic that so far has been confined to the research literature but is of practical interest: a response-spectrum-based method to estimate principal stresses in continuum structures, such as concrete dams.
• Chapters 7, 9, and 18 have been expanded to include P– analysis of gravity load effects and an introduction to their influence on the lateral response, permanent deformation, and collapse of structures.
• Chapter 11 has been revised to include recent data on damping ratios determined by system-identification analysis of motions of 203 buildings recorded during earthquakes. New recommendations for estimating damping ratios to be used in earthquake analysis of structures are presented.
• Chapters 22 and 23 have been updated to reflect the current editions of building codes for designing new buildings, and of performance-based guidelines and standards for evaluating existing buildings.
• Many new figures, several worked-out examples, and end-of-chapter problems have been added.
Using the book in my teaching and reflecting on it over the years suggested improvements. The text has been clarified and polished throughout, and a few sections have been reorganized to enhance the effectiveness of the presentation.
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Article/eBook Full Name: Seismic Evaluation and Design of Petrochemical and Other Industrial Facilities
Publish Date: 2020
ISBN: 9780784482667
Published By: ASCE
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Article/eBook Full Name: Seismic Loads: Guide to the Seismic Load Provisions of ASCE 7-16
Publish Date: 2020
Published By: ASCE
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Article/eBook Full Name: Industrial Cities: History and Future
Author(s): Clemens Zimmermann
Publish Date: 2013
ISBN: 3593399148 and 9783593399140
Published By: Campus Verlag
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The PLAXIS product team has unveiled PLAXIS 2D CONNECT Edition V20 is a powerful and user friendly finite element package intended for two-dimensional analysis of deformation and stability in geotechnical engineering and rock mechanics.
PLAXIS 2D CE V20.00.00 Release notes - Release: August 2019
New and improved features
Scripting Reference manual as a Jupyter notebook
- Easily learn Python-based remote scripting in PLAXIS with the new Scripting Reference manual. Sample scripts for each of the commands in PLAXIS 2D and 3D are offered in a Jupyter notebook. These samples can be run live in the software to see and understand what happens. You can also edit and rerun the samples and see the effect of your changes, offering a great way of learning-by-doing.
Others
- To improve the support for scripting, material properties can now be set to an invalid state without directly getting an error message. The calculation still needs a valid dataset;
- A new validate command for materials was added which checks every property at once;
- PLAXIS Soiltest now supports command line and remote scripting;
- the checks in the checkgeometry command have been extended. In addition, it is now also possible to execute this command from the calculation modes;
- added command for checking the calculation conditions. These conditions are now also checked when running the calculate command;
- added interactive documentation for Python scripting layer (Python Notebooks);
Fixed issues
- Interface pore pressure generation when adjacent soil uses Interpolate pore pressures is now been resolve;
- Display of plastic points could lead to an error. This is now resolved;
- Various meshing issues have been resolved;
- Other minor issues
The PLAXIS 2D and 3D CONNECT Edition now has a Scripting reference manual, learn-by-doing by changing and running live script examples.
PLAXIS Geotechnical Finite Element Analysis Software
Conquer any geotechnical project with confidence using PLAXIS. Design and perform advanced finite element analysis of soil and rock deformation and stability, as well as soil structure interaction and groundwater and heat flow. You will have what it takes to handle advanced constitutive models for the simulation of the nonlinear and time-dependent behavior of soils. Apply hydrostatic and nonhydrostatic pore pressures, model structures and the interaction between the structures and the soil, and take on projects of all types such as excavations, foundations, embankments, tunnels, mines, dredging, and more.
PLAXIS 2D is a powerful and user friendly finite element package intended for two-dimensional analysis of deformation and stability in geotechnical engineering and rock mechanics. PLAXIS is used worldwide by top engineering companies and institutions in the civil and geotechnical engineering industry. Applications range from excavations, embankment and foundations to tunnelling, mining and reservoir geomechanics.
PLAXIS is equipped with a broad range of advanced features to model a diverse range of geotechnical problems, all from within a single integrated software package.
PLAXIS uses predefined structural elements and loading types in a CAD-like environment. This empowers the user with fast and efficient model creation, allowing more time to interpret the results.
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The foundation of a structure, such as a builing, plays a decisive role in contributing to its stability durability over its lifetime. The foundation constitutes the interface between the superstructure and the soil, thus forming a vital link which sustains the structure. The author has spent a lifetime of work on the bject of foundations. In two major works: Modern Foundations - Introducrion to Advanced Techniques and Design of Foundation Systems - Priciples and Practices he has presented the results of his extensive research and practical experience in this field. The author's special attention, from the beginning, was focused on the ore recent and lesser known technique of deploying shells in foundations. Shell forms generally allow the of only minimal materials for maximum functionality and this holds true for foundations of structures as well. They are therefore particularly important in regions where economical requirements, such as increased expenditure on human labour in relation ·to reduced expenditure on materials, play a major role. I had the pleasant opportunity of working in the field of shell foundations together with the author at the Tecnical University of Berlin, and during this time I was convinced of the capabilities and efficiency of foundations of this type. I am extremely pleased to find that Prof. Nainan P. Kurian, in this book, has dealt with the ubject in a detailed, systematic and in-depth manner, and, as such, I have no doubt that it will attract the wide readership it richly deserves.
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Wind Design Manual Based on the 2018 IBC and ASCE/SEI 7-16 Examples for Wind Forces on Buildings and Solar Photovoltaic Systems
Author(s):
SEAOC
Publish Date:
2018
Published By:
SEAOC-ICC
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