From the editors

The year 2007 is a transformational one for us as the Journal of Earthquake Engineering and Engineering Vibration changes from a semi-annual to a quarterly schedule and is published by Springer Verlag. Beginning with Vol. 6, No. 1, four issues of about 100 pages each will be published each year. The journal will continue to be available in print format, and a new electronic offering will be accessible through SpringerLink, Springer's Internet portal. We believe     

From the editors

Last year was a transformational one for us as Earthquake Engineering and Engineering Vibration changed from a semi-annual to a quarterly schedule and began publication as part of the Springer Verlag organization.     

《地震工程与工程振动》1995～1999年论文的统计分析

本文对《地震工程与工程振协》１９９５￣１９９９年５年间刊载的论文、作者和引文进行了较全面的统计,运用文献计量学的原理与方法,分析了文献群内存在的数量规律;定量地描述了期刊论文的平均载文量、作者合作度、核心作者和引文情况;对其进行了客观的评价以期为地震工程学科的发展和本刊的发展提供可参考数据。     

环境与工程地球物理的新进展

环境与工程地球物理是地球物理中的一个重要方向,并紧密与社会发展和人们生活各方面相结合,未来将倍受重视．本文在介绍2004年武汉召开的国际环境与工程地球物理学术会议(ICEEG)基础上,阐述了环境与工程地球物理领域的一些新进展和主要发展趋势．并有针对性地介绍了我国环境与工程地球物理现状。     

地震工程研究的科学大平台

始于十九世纪末的地震工程研究,在其100多年的历史中积累了大量的理论和实践经验,随之而建设起来的各类地震工程实验设施分布于世界各地。近20年来,信息技术的飞速发展使得分布于世界各地的实验设施通过网络实现协同实验和资源共享。基于以上的信息,为了更好更快地和国际接轨,本文提出了建设一个地震工程研究领域的科学大平台设想。这个大平台包括三个方面的内容:数值模拟,网络协同实验系统和基础信息系统,将形成本领域开放性的综合科学平台。在数值模拟方面,这个科学平台将利用最新的信息技术将本领域的科学研究结果和方法集成起来,形成一个模块式的科学研究平台系统。在网络协同实验方面,将采纳美国NEES的思路,并对其改进和提高之后应用于中国。在基础数据方面,将利用最为先进的数据仓储技术,建设一个可以服务于地震工程科学研究的数据平台。最后,文章给出了建设这个科学平台的规划,以及目前的进展和资金支持等情况。     

The equation of motion for a small aerosol in a continuum

Summary The motion of an aerosol can be described by a general force balance equation, independent of the detailed structure of the flow, provided that the interaction between the external flow field and the local flow induced by the aerosol is weak. A necessary and sufficient condition for the interaction to be weak is that the length scale of the aerosol is much less than that of the external flow. High and low Reynolds number regimes can be distinguished for the motion of an aerosol relative to the external flow. In some extreme conditions the equation of motion reduces to an algebraic equation for the aerosol velocity.After submission of this article the author was made aware of a similar treatment published inTopics of Appl. Phys., 12 (Turbulence, Chapter 7), Springer Verlag, Berlin, which at the time of the article's submission had not yet appeared in Australia. (Ed.)     

From the editors

Dear Contributors,Readers and Friends: 2011 milestones the tenth anniversary of the Journal of Earthquake Engineering and Engineering Vibration.we first want to take this opportunity to express our gratitude to those retiring members of the Editorial Board for their valuable contributions in the past,and to welcome those who joined the Editorial Board this year. As we mentioned in our message to you in December 2010,effective 20ll,the journal is officially co-sponsored by the Huixian Earthquake     

Faults有限元程序在Windows平台上的移植

Faults有限元软件综合高程、热流、断层等多个地球物理场参数,相较于Ansys、Adina等商用有限元软件能更好的处理断层的摩擦机制,因此Faults有限元软件在地学模拟中有独特优势.目前使用的Faults软件基于IBM科学与工程数学库(ESSL),使用环境较为苛刻,使用不便,需要移植源代码.利用Linpack免费数...     

Teaching Structural Hazards Awareness for Preparedness and Community Response

Most successful search and rescue is performed by neighbors and household members during the first 24 h after an earthquake, before professional responders arrive on the scene. Many spontaneous responders become casualties in the process. Kandilli Observatory and Earthquake Research Institutes Disaster Preparedness Education Project with the support of the Earthquake Engineering Department has developed a training module for Community Disaster Responders to help them assess the level of damage for immediate citizen disaster response. Learning the signs of damage in both reinforced concrete and adobe buildings, they will be better able to distinguish the slight and moderately damaged buildings where their light search and rescue efforts will be effective, as opposed to the heavily damaged buildings where professional help is required for safe extrication. Incorporating citizens into the early stages of building collapse rescue is designed to make professional urban search and rescue efforts more effective. The program is being piloted in Turkey by the Civil Defense Directorate, Search and Rescue Brigade. It is expected that this will lead to a new demand for engineers to work in partnership with community-based organizations for planning and prioritizing disaster mitigation efforts, and to participate in immediate post-disaster damage assessment. Engineering recommendations will also be needed for post-earthquake building re-entry and re-habitation risk assessment.     

Istanbul Earthquake Rapid Response and the Early Warning System

One hundred strong motion accelerometers have been placed in populated areas of Istanbul, within an area of approximately 50×30 km, to constitute a network that will enable rapid shake map and damage assessment after a damaging earthquake. After triggered by an earthquake, each station will process the streaming strong motion to yield the spectral accelerations at specific periods and will send these parameters in the form of SMS messages to the main data center through available GSM network services. A shake map and damage distribution will be automatically generated. The shake and damage maps will be available on the Internet and will also be pushed to several end users. For earthquake early warning information ten strong motion stations were located as close as possible to the Marmara Fault. The continuous on-line data from these stations will be used to provide near-real time warning for emerging potentially disastrous earthquakes. This revised version was published online in July 2006 with corrections to the Cover Date.     

Wolf JP,Preisig M. Dynamic stiffness of foundation embedded in layered halfspace based on wave propagation in cones. Earthquake Engineering and Structural Dynamics 2003; 32:1075–1098

The original article to which this Erratum refers was published in Earthquake Engineering and Structural Dynamics 2003; 32 : 1075–1098.     

‘Evaluation of modal pushover analysis using generic frames’. Earthquake Engineering and Structural Dynamics 2003; 32:417–442

The original article to which this erratum refers was published in Earthquake Engineering and Structural Dynamics 2003; 32 :417–442.     

‘Fundamental consideration for the design of non‐linear viscous dampers’. Earthquake Engineering and Structural Dynamics 1999; 28:1405–1425

The original article to which this erratum refers was published in Earthquake Engineering and Structural Dynamics 1999; 28 :1405–1425.     

Foreword to the special issue on the ITACA strong motion database

The Special Issue of the Bulletin of Earthquake Engineering devoted to the new Italian strong motion database ITACA (ITalian ACelerometric Archive) is introduced in this foreword. An overview of the papers published in this issue is presented, providing an idea of the number of problems encountered in the compilation of a database as rich of information as ITACA, of the solutions adopted and of the possible research and practical applications. Most of the contents, though specifically addressed to ITACA and to its accelerograms, can be usefully thought of as an exemplification of approaches and methods that can be used for, and extended to, similar databases in other countries.     

Out‐of‐plane stability assessment of buckling‐restrained braces including connections with chevron configuration

One of the key limit states of buckling‐restrained braces (BRBs) is global flexural buckling including the effects of the connections. The authors have previously proposed a unified explicit equation set for controlling the out‐of‐plane stability of BRBs based on bending‐moment transfer capacity at the restrainer ends. The proposed equation set is capable of estimating BRB stability for various connection stiffnesses, including initial out‐of‐plane drift effects. However, it is only valid for symmetrical end conditions, limiting application to the single diagonal configuration. In the chevron configuration, the out‐of‐plane stiffness in the two ends differs because of the rotation of the attached beam. In this study, the equation set is extended to BRBs with asymmetric end conditions, such as the chevron configuration. Cyclic loading tests of the chevron configuration with initial out‐of‐plane drifts are conducted, and the results are compared with the proposed equation set, which is formulated as a function of the normalized stiffness of the attached beam. © 2016 The Authors. Earthquake Engineering & Structural Dynamics published by John Wiley & Sons Ltd. © 2016 The Authors. Earthquake Engineering & Structural Dynamics published by John Wiley & Sons Ltd.     

More on the alleged 1970 geomagnetic jerk

French and United Kingdom workers have published reports describing a sudden change in the secular acceleration, called an impulse or a jerk, which took place around 1970. They claim that this change took place in a period of a year or two and that the sources of the alleged jerk are internal. An earlier paper by this author questioned their method of analysis pointing out that their method of piecemeal fitting of parabolas to the data will always create a discontinuity in the secular acceleration where the parabolas join and that the place where the parabolas join is an a priori assumption and not a result of the analysis. This paper gives a very brief summary of this first paper and then adds additional reasons for questioning the allegation that there was a worldwide sudden jerk in the magnetic field of internal origin around 1970. These new reasons are based largely on new field models which give cubic approximations of the field right through the 1970 timeframe and therefore have no discontinuities in the second derivative (jerk) around 1970. Some recent Japanese work shows several sudden changes in the secular variation pattern which cover limited areas and do not seem to be closely related to each other or to the irregularity noted in the European area near 1970. The secular variation picture which seems to be emerging is one with many local or limited-regional secular variation changes which appear to be almost unrelated to each other in time or space. A worldwide spherical harmonic model including coefficients up to degree 13 could never properly depict such a situation.     

Maps of epicentral distribution in 2003

For showing the epicentral distribution in and near China as well as all over the world, two epicentral maps for the earthquakes occurred last year are published annually in the 6-th issue each year. Figures 1 and 2 represent the epicentral distributions in and near China and all over the world in 2003, respectively.     

Epicentral distribution in 2004

For showing the epicentral distribution in and near China as well as all over the world, two epicentral maps for the earthquakes occurred last year are published annually in the 6-th issue each year. Figures 1 and 2 represent the epicentral distributions in and near China and all over the world in 2004, respectively.     

Epicentral distribution in 2005

For showing the epicentral distribution in and near China as well as all over the world,two epicentral maps for the earthquakes occurred last year are published annually in the6-th issue each year.Figures1and2represent the epicentral distributions in and near China and all over the world in2005,respectively.Figure1Epicentral distribution in and near China in2005Figure2Epicentral distribution all over the world in2005Epicentral distribution in 2005@陈培善$Institute of Geophysics, China Eart…     

Epicentral distribution in 2006

For showing the epicentral distribution in and near China as well as all over the world, two epicentral maps for the earthquakes occurred last year are published annually in the 6-th issue