Earthquake Resistant Design

Author(s):  
Md. Farrukh ◽  
Nadeem Faisal ◽  
Kaushik Kumar

In the long history of mankind's existence, nature's forces have influenced human existence to a great extent. Of all natural disasters, the least understood and most destructive are earthquakes. Their claim of human lives and material losses constantly force people to search for better protection, still a great challenge for engineers and researchers worldwide. Although important progress has been done in understanding seismic activity and developing buildings technology, a better way of protecting buildings on large scale is still in search. The essential features of earthquake resistance structure are stable foundation design, regularity, ductility, adequate stiffness, redundancy, and ruggedness. The chapter focuses on increasing the knowledge dictum of earthquake resistant design and discusses the various sorts of issues and challenges. It also presents a wide view on optimization techniques that are required to be done in the latest technology currently in practice so as to achieve the optimum design techniques.

1986 ◽  
Vol 36 (1) ◽  
pp. 32-37 ◽  
Author(s):  
J. T. Hooker

The late Colin Macleod's commentary on Iliad 24 (Cambridge, 1982) has rightly received praise for its sensitivity to the nuances of Homeric language and its appreciation of the entire poem as a carefully constructed work of art. Although reluctant to accept the more radical solutions proposed by the ‘oral’ school, Macleod showed himself fully aware of the contribution made by the oral theory towards elucidating the history of the epic. Nevertheless, his commentary is concerned principally with the Iliad as we have it: a poem which is at one level a masterly re-telling of saga but at another a sublime tragedy, commiserating the sorrows inseparable from human existence and holding up for our admiration the heroes who nobly confront pain and death. I believe that much, and probably most, of the Iliad can and should be viewed in this light. The last book of all, as Macleod himself has shown, offers especially rich rewards to an interpreter who keeps in the front of his mind the overriding aims of the great poet. Yet Macleod's method, like any other single method, will never yield a fully satisfactory answer on all occasions. However the ‘definitive’ or ‘monumental’ composition of the Iliad was brought about, it formed only one stage (though from our point of view incomparably the most important stage) in the development of the Greek epic. Our Iliad cannot have been the first or the only treatment, on a large scale, of the matter of Troy.


1987 ◽  
Vol 3 (3) ◽  
pp. 491-496 ◽  
Author(s):  
Mauricio A. Lara

Construction practice in San Salvador, as in the rest of El Salvador, had remained practically unchanged since the time of Spanish colonization up to around 1942. From then on, building practices from many other countries have been introduced, and they have exerted a major influence. The last four decades can be divided into five stages or periods induced by events such as earthquakes in El Salvador and neighboring countries, as well as the incorporation of foreign codes in lieu of a local one and the introduction of new techniques, such as soil mechanics and microseismic investigation. The incorporation of practices based on foreign codes contributed significantly to the improvement of construction practice but occasionally led to misinterpretations, e.g. in the evaluation of seismic actions. At present, a number of studies and records are available that can be used as a basis for the elaboration of an earthquake resistant design code.


Author(s):  
M. J. Pender

This paper reviews the main issues to be addressed in the design of shallow and deep foundations which may be subject to earthquake loading. Information is presented on the soil properties required as well as the various design analysis techniques with a view to assessing the current state-of-the-art and highlighting areas in which further techniques need to be developed. The paper sets out, by way of an overview, a sequence of steps that a designer may follow in developing a foundation system. It is concluded that, at present, the greatest deficiencies lie in the areas of most potential use to designers. A secondary aim of the paper is to enhance communication between geotechnical and structural engineers on aseismic foundation design.


1996 ◽  
pp. 4-15
Author(s):  
S. Golovaschenko ◽  
Petro Kosuha

The report is based on the first results of the study "The History of the Evangelical Christians-Baptists in Ukraine", carried out in 1994-1996 by the joint efforts of the Department of Religious Studies at the Institute of Philosophy of the National Academy of Sciences of Ukraine and the Odessa Theological Seminary of Evangelical Christian Baptists. A large-scale description and research of archival sources on the history of evangelical movements in our country gave the first experience of fruitful cooperation between secular and church researchers.


2014 ◽  
Vol 59 (1) ◽  
pp. 49-60
Author(s):  
Davide Sparti

Obwohl jede menschliche Handlung mit einem gewissen Grad an Improvisation erfolgt, gibt es kulturelle Praktiken, bei denen Improvisation eine überwiegende Rolle spielt. Um das Risiko zu vermeiden, einen zu breiten Begriff von Improvisation zu übernehmen, konzentriere ich mich im vorliegenden Beitrag auf den Jazz. Meine zentrale Frage lautet, wie Improvisation verstanden werden muss. Mein Vorgehen ist folgendes: Ich beginne mit einem Vergleich von Improvisation und Komposition, damit die Spezifizität der Improvisation erklärt werden kann. Danach wende ich mich dem Thema der Originalität als Merkmal der Improvisation zu. Zum Schluss führe ich den Begriff affordance ein, um die kollektive und zirkuläre Logik eines Solos zu analysieren. Paradigmatisch wird der Jazzmusiker mit dem Engel der Geschichte verglichen, der nur auf das Vergangene blickt, während er der Zukunft den Rücken zugekehrt hat, und lediglich ihr zugetrieben wird. Weder kann der Improvisierende das Material der Vergangenheit vernachlässigen noch seine genuine Tätigkeit, das Improvisieren in der Gegenwart und für die Zukunft, aufgeben: Er visiert die Zukunft trotz ihrer Unvorhersehbarkeit über die Vermittlung der Vergangenheit an.<br><br>While improvised behavior is so much a part of human existence as to be one of its fundamental realities, in order to avoid the risk of defining the act of improvising too broadly, my focus here will be upon one of the activities most explicitly centered around improvisation – that is, upon jazz. My contribution, as Wittgenstein would say, has a »grammatical« design to it: it proposes to clarify the significance of the term »improvisation.« The task of clarifying the cases in which one may legitimately speak of improvisation consists first of all in reflecting upon the conditions that make the practice possible. This does not consist of calling forth mysterious, esoteric processes that take place in the unconscious, or in the minds of musicians, but rather in paying attention to the criteria that are satisfied when one ascribes to an act the concept of improvisation. In the second part of my contribution, I reflect upon the logic that governs the construction of an improvised performance. As I argue, in playing upon that which has already emerged in the music, in discovering the future as they go on (as a consequence of what they do), jazz players call to mind the angel in the famous painting by Klee that Walter Benjamin analyzed in his Theses on the History of Philosophy: while pulled towards the future, its eyes are turned back towards the past.


1984 ◽  
Vol 16 (1-2) ◽  
pp. 281-295 ◽  
Author(s):  
Donald C Gordon

Large-scale tidal power development in the Bay of Fundy has been given serious consideration for over 60 years. There has been a long history of productive interaction between environmental scientists and engineers durinn the many feasibility studies undertaken. Up until recently, tidal power proposals were dropped on economic grounds. However, large-scale development in the upper reaches of the Bay of Fundy now appears to be economically viable and a pre-commitment design program is highly likely in the near future. A large number of basic scientific research studies have been and are being conducted by government and university scientists. Likely environmental impacts have been examined by scientists and engineers together in a preliminary fashion on several occasions. A full environmental assessment will be conducted before a final decision is made and the results will definately influence the outcome.


2021 ◽  
pp. 009614422110252
Author(s):  
Ahmet Yusuf Yüksek

This study investigates the socio-spatial history of Sufism in Istanbul during 1880s. Drawing on a unique population registry, it reconstructs the locations of Sufi lodges and the social profiles of Sufis to question how visible Sufism was in the Ottoman capital, and what this visibility demonstrates the historical realities of Sufism. It claims that Sufism was an integral part of the Ottoman life since Sufi lodges were space of religion and spirituality, art, housing, and health. Despite their large presence in Istanbul, Sufi lodges were extensively missing in two main areas: the districts of Unkapanı-Bayezid and Galata-Pera. While the lack of lodgess in the latter area can be explained by the Western encroachment in the Ottoman capital, the explanation for the absence of Sufis in Unkapanı-Bayezid is more complex: natural disasters, two opposing views about Sufi sociability, and the locations of the central lodges.


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