Applications of Seismic Isolation Retrofitting in Historic Buildings

2015 ◽  
Vol 723 ◽  
pp. 358-363
Author(s):  
Ru Yin ◽  
Yong Zhan Chen ◽  
Zhong Fan Chen
Keyword(s):  
Seismic Isolation ◽  
Seismic Retrofitting ◽  
Historic Buildings ◽  
Paper Briefly ◽  
Basic Principles ◽  
Conventional Methods ◽  
At Home

Compared with conventional methods of seismic retrofitting, seismic isolation is not only more economical, but also can preserve the original appearance of historic buildings. Therefore, this method is more suitable for retrofitting of historic buildings. This paper briefly introduces the basic principles of seismic isolation retrofitting and some application examples at home and abroad. Besides, this paper summarizes some issues that should be paid attention to in seismic isolation retrofitting.

scholarly journals Outline of Real Physics

2020 ◽  
pp. 9-27
Author(s):  
Zhong-Cheng Liang
Keyword(s):  
Paper Briefly ◽  
Basic Principles ◽  
Natural Processes ◽  
The Core ◽  
Theoretical System ◽  
Motion Modes ◽  
Core Concepts ◽  
Laws Of Motion ◽  
Physical Laws ◽  
Elastic Particles

Real physics is an axiomatic theoretical system based on the model of elastic particles. Unlike point-like and wave-like particles, elastic particles are objects with both mass and volume, which can spin and deform. Electrons, protons, and atoms are elastic particles. Elastic particles have three motion modes of translation, rotation, and vibration. The system of elastic particles follows simple and universal laws of motion. This paper briefly reviews the core concepts, basic principles, main contents, and major achievements of real physics. It shows that the classical physical laws (laws of motion, gravitation, electromagnetism, and thermodynamics) are all conclusions drawn from the statistics of elastic particles, which reveals the irreversibility of natural processes.

Seismic Isolation Design Code for Highway Bridges

2002 ◽  
Author(s):  
Kazuhiko Kawashima ◽  
Shigeki Unjoh
Keyword(s):  
Ground Motion ◽  
Seismic Design ◽  
Seismic Isolation ◽  
Highway Bridges ◽  
Design Code ◽  
Basic Principles ◽  
Design Specifications

This paper presents the seismic isolation design code for highway bridges. This is based on the 1996 Design Specifications for Highway Bridges, Part. V: Seismic Design, issued by the Japan Road Association in December 1996. This paper focuses on the outlines of the seismic isolation design code including the seismic design basic principles, design ground motion, and seismic isolation design.

scholarly journals Architectural Expression of Seismic Strengthening

2001 ◽  
Vol 17 (3) ◽  
pp. 417-426 ◽  
Author(s):  
Andrew Charleson ◽  
Julieanna Preston ◽  
Mark Taylor
Keyword(s):  
Structural Engineering ◽  
Seismic Retrofitting ◽  
Office Building ◽  
Masonry Building ◽  
Historic Buildings ◽  
Seismic Strengthening ◽  
Aesthetic Sense ◽  
Alternative Approach ◽  
The Subject ◽  
Unreinforced Masonry Building

Current seismic strengthening approaches to historic buildings place emphasis upon concealing engineering technologies. This study investigates, through a process of architectural and structural engineering design, the architectural possibilities inherent in a completely different approach. Recognizing both conservation concerns and the architectural qualities of two existing earthquake-prone buildings, the study explores seismic strengthening strategies that are exposed to view in order to contribute, in both a physical and aesthetic sense, a layer of architectural richness. A 1960s eight-story reinforced-concrete office building and a three-story unreinforced masonry building are the subject of theoretical seismic strengthening schemes. The paper describes the buildings, the strengthening approaches from both architectural and structural engineering perspectives, and comments on the outcome with respect to conservation guidelines. Although the proposed schemes challenge some sections of the guidelines, the authors believe the exposed structure enhances the existing architecture, and in so doing suggests an alternative approach for seismic retrofitting.

A New High Voltage Transmission Lines Deicer Based on Vibrations Principle

2013 ◽  
Vol 772 ◽  
pp. 604-607
Author(s):  
Jing Nie
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
Social Benefits ◽  
Lead Wire ◽  
Ice Melting ◽  
Paper Briefly ◽  
Basic Principles ◽  
High Voltage Transmission Line ◽  
Pros And Cons ◽  
High Voltage Transmission

In recent years, for the high voltage transmission lines suffered serious Icing lead wire dancing, break and tower collapsed, domestic and foreign strengthened the study of high-voltage overhead line deicing methods and put forward a variety of line deicing methods. This paper first introduced thermal ice-melting method, mechanical deicing method, natural deicing method and several common deicing methods and analyzed the pros and cons of various deicing program. Based on the analysis of deicing methods for the high voltage transmission lines, a new and simple high voltage transmission line deicer is brought forward. This paper briefly discussed the basic principles and advantages of the device, providing a new way of thinking for the high voltage transmission lines deicing and having a certain value and social benefits.

scholarly journals A Guide to Robust Statistical Methods in Neuroscience

2017 ◽  
Author(s):  
Rand R. Wilcox ◽  
Guillaume A. Rousselet
Keyword(s):  
Type I Error ◽  
Type I ◽  
Paper Briefly ◽  
New Techniques ◽  
Vast Array ◽  
New Methods ◽  
Conventional Methods ◽  
Nuanced Understanding ◽  
Improved Methods ◽  
Robust Statistical Methods

ABSTRACTThere is a vast array of new and improved methods for comparing groups and studying associations that offer the potential for substantially increasing power, providing improved control over the probability of a Type I error, and yielding a deeper and more nuanced understanding of neuroscience data. These new techniques effectively deal with four insights into when and why conventional methods can be unsatisfactory. But for the non-statistician, the vast array of new and improved techniques for comparing groups and studying associations can seem daunting, simply because there are so many new methods that are now available. The paper briefly reviews when and why conventional methods can have relatively low power and yield misleading results. The main goal is to suggest some general guidelines regarding when, how and why certain modern techniques might be used.

Emerging Technologies and Materials for the Seismic Protection of Cultural Heritage

2015 ◽  
pp. 576-606 ◽  
Author(s):  
C.Z. Chrysostomou ◽  
Nicholas Kyriakides ◽  
P.C. Roussis ◽  
Panagiotis G. Asteris
Keyword(s):  
Cultural Heritage ◽  
Seismic Isolation ◽  
Seismic Retrofitting ◽  
Seismic Protection ◽  
Alternative Approach ◽  
Historic Structures ◽  
Protection Systems ◽  
Innovative Materials ◽  
Energy Dissipation Devices ◽  
Seismic Resilience

Cultural heritage artifacts and buildings are under a constant thread of destruction during devastating earthquakes. Any intervention should be such that it neither violates their form nor changes drastically their structural behavior and should be reversible. In addition, the materials to be used must be compatible with the ones the monument is constructed of. Traditional seismic retrofitting techniques have the disadvantage that most of them violate the above conditions. An alternative approach is the use of innovative seismic-protection systems to enhance the seismic resilience of cultural heritage against the effects of earthquakes, which is reported in this chapter. The potential of seismic-isolation strategy to mitigate the seismic risk of museum artifacts will be first exploited. Subsequently, the state of the art of the use of energy-dissipation devices, such as viscous dampers and shape memory alloys, as well as innovative materials such as FRPs, for the protection of monuments and historic structures will be presented.

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