Download or read book Optimizacion economica en el dise o estructural de edificios en muros estructurales written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimizaci n Econ mica de Estructuras de Hormig n Armado written by José Luis Borda Flores and published by Eae Editorial Academia Espanola. This book was released on 2011-12 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: En los ultimos anos a cobrado gran impulso una rama de la ingenieria conocida como Optimizacion Estructural, donde los problemas de diseno se reformulan en base a una o mas funciones objetivo, las cuales se quiere minimizar o maximixar, mientras se las sujeta a una serie de restricciones. Tecnicas de programacion matematica suelen ser la herramienta basica de los ingenieros que trabajan en esta area y una gran cantidad de metodos numericos y heuristicas se han desarrollado para enfrentar la alta no-linealidad de estos problemas, caracterizados por tener un gran numero de minimos locales. En esta publicacion se presenta una metodologia para el Diseno de Costo Optimo (DCO) de porticos planos de hormigon armado de edificios sometidos a cargas estaticas, basado en los requerimientos de la norma ACI 318-08. La metodologia propuesta no solo es aplicable a disenos existentes, sino que tambien puede utilizarse para hacer predisenos de proyectos en desarrollo y comprobar que las secciones no esten sobredimensionadas, llegando a considerarla como una alternativa tecnica y economicamente viable para dimensionado de proyectos de edificacion."
Download or read book Optimizaci n del dise o y construcci n de edificios met licos en base a algoritmos gen ticos written by María Belén Prendes Gero and published by . This book was released on 2002 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: En los tiempos antiguos el diseño estructural consistía simplemente en repetir lo que se había hecho en el pasado, con muy poco conocimiento del comportamiento del material o de la teoría estructural. El éxito o el fracaso se determinaban simplemente según que el edificio o el puente soportara la carga real o se colapsara por sus efectos. Gradualmente, a través de los siglos de experiencia, evolucionó el arte de dimensionar los elementos estructurales, se establecieron reglas empíricas, se consiguieron progresos en las técnicas de estructuras que permitieron que el diseño estructural pasara de ser un arte a una ciencia aplicada. Durante los últimos 40 años se ha prestado una atención cada vez mayor a la evaluación de las propiedades inelásticas de los materiales y al cálculo directo de la resistencia última de cada miembro. Lo que ha llevado al diseño por " Factor de carga". En la década de 1980 los métodos estructurales de diseño pasaron por cambios muy rápidos a medida que en más y más especificaciones se hizo un mayor hincapié en el diseño por factor de carga también denominado diseño por "estados límites". En este tiempo se incrementó la utilización de ordenadores en el diseño de las estructuras, en su análisis, en la producción de planos de diseño detallados, etc. El empleo de ordenadores ha permitido que estos análisis sean más precisos, reales y eficaces y la velocidad con que analizan las diferentes soluciones consigue diseños más económicos que en el pasado. El siguiente paso es el desarrollo de una técnica que sustituya al diseño convencional, obteniendo un diseño completo de la estructura. Esta técnica se conoce como "optimización estructural" y lo que pretende es obtener soluciones extremas que satisfagan los criterios de diseño prescritos de una forma racional, sin recaer en la intuición o habilidad del diseñador, englobar el proceso de selección de los elementos estructurales y comprobar que los criterios de diseño se cumplan. Debido a las limitaciones de fabricación, los elementos estructurales no son variables continuas sino discretas, lo que ha llevado al desarrollo de técnicas de optimización discretas. El análisis de estas técnicas permite definir a los algoritmos genéticos como una técnica de optimización robusta y eficaz, adecuada a problemas metálicos tridimensionales.
Download or read book 6th International Conference on the Conservation of Earthen Architecture written by The Getty Conservation Institute and published by Getty Publications. This book was released on 1991-02-28 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: On October 14-19, 1990, the 6th International Conference on the Conservation of Earthen Architecture was held in Las Cruces, New Mexico. Sponsored by the GCI, the Museum of New Mexico State Monuments, ICCROM, CRATerre-EAG, and the National Park Service, under the aegis of US/ICOMOS, the event was organized to promote the exchange of ideas, techniques, and research findings on the conservation of earthen architecture. Presentations at the conference covered a diversity of subjects, including the historic traditions of earthen architecture, conservation and restoration, site preservation, studies in consolidation and seismic mitigation, and examinations of moisture problems, clay chemistry, and microstructures. In discussions that focused on the future, the application of modern technologies and materials to site conservation was urged, as was using scientific knowledge of existing structures in the creation of new, low-cost, earthen architecture housing.
Download or read book The Path Between the Seas written by David McCullough and published by Simon and Schuster. This book was released on 2001-10-27 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Book Award–winning epic chronicle of the creation of the Panama Canal, a first-rate drama of the bold and brilliant engineering feat that was filled with both tragedy and triumph, told by master historian David McCullough. From the Pulitzer Prize–winning author of Truman, here is the national bestselling epic chronicle of the creation of the Panama Canal. In The Path Between the Seas, acclaimed historian David McCullough delivers a first-rate drama of the sweeping human undertaking that led to the creation of this grand enterprise. The Path Between the Seas tells the story of the men and women who fought against all odds to fulfill the 400-year-old dream of constructing an aquatic passageway between the Atlantic and Pacific oceans. It is a story of astonishing engineering feats, tremendous medical accomplishments, political power plays, heroic successes, and tragic failures. Applying his remarkable gift for writing lucid, lively exposition, McCullough weaves the many strands of the momentous event into a comprehensive and captivating tale. Winner of the National Book Award for history, the Francis Parkman Prize, the Samuel Eliot Morison Award, and the Cornelius Ryan Award (for the best book of the year on international affairs), The Path Between the Seas is a must-read for anyone interested in American history, the history of technology, international intrigue, and human drama.
Download or read book University and School Collaborations During a Pandemic written by Fernando M. Reimers and published by Springer Nature. This book was released on 2022 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on twenty case studies of universities worldwide, and on a survey administered to leaders in 101 universities, this open access book shows that, amidst the significant challenges caused by the COVID-19 pandemic, universities found ways to engage with schools to support them in sustaining educational opportunity. In doing so, they generated considerable innovation, which reinforced the integration of the research and outreach functions of the university. The evidence suggests that universities are indeed open systems, in interaction with their environment, able to discover changes that can influence them and to change in response to those changes. They are also able, in the success of their efforts to mitigate the educational impact of the pandemic, to create better futures, as the result of the innovations they can generate. This challenges the view of universities as "ivory towers" being isolated from the surrounding environment and detached from local problems. As they reached out to schools, universities not only generated clear and valuable innovations to sustain educational opportunity and to improve it, this process also contributed to transform internal university processes in ways that enhanced their own ability to deliver on the third mission of outreach
Download or read book Strategies for testing and assessment of concrete structures guidance report written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1998-05-01 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecodesign written by Han Brezet and published by Incumbent. This book was released on 1997-01-01 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written to help industrial businesses world-wide introduce systematic ecodesign (the integration of environmental aspects into the familiar product development process).
Download or read book Strategic Management written by Fred R. David and published by Prentice Hall. This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: KEY BENFIT:David's Strategic Managementoffers a skills-oriented, practitioner perspective that has been updated with modern cases to reflect current research and strategy. This text covers strategy formulation issues such as business ethics, global vs. domestic operations, vision/mission, matrix analysis, partnering, joint venturing, competitive analysis, and includes a brand new cohesion case on the Walt Disney Company. For management professionals, small business owners and others involved in business.
Download or read book Spain s First Democracy written by Stanley G. Payne and published by Univ of Wisconsin Press. This book was released on 1993 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Payne's study places Spain's Second Republic within the historical framework of Spanish liberalism, and the rapid modernisation of inter-war Europe. He aims to present a consistent and detailed interpretation, demonstrating striking parallels to the German Weimar Republic.
Download or read book Engaging People in Sustainability written by Daniella Tilbury and published by IUCN. This book was released on 2004 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is based on the exchange of professional experiences which featured in an IUCN CEC workshop in August 2002. Practitioners from around the world shared their models of good practice and explored the challenges involved in engaging people in sustainability. The difficulties facing practitioners vary between country and context but some challenges are universal: A lack of clarity in communicating what is meant by sustainable development; An ambition to educate everyone to bring about a global citizenship; Social, organisational or institutional factors constrain change to sustainable development, yet there is an emphasis on formal education, and community educators do not receive the same support; A lack of balance in addressing the integration of environmental, social and economic dimensions leading to an interpretation that ESD is mainly about environment and conservation issues; New learning (rather than teaching) approaches are called for to promote more debate in society. Yet, few are trained or experienced in these new approaches. Practitioners need support to explore new ways of promoting learning. [Foreword, ed].
Download or read book Bayt Al Aqqad written by Peder Mortensen and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today Bayt al-'Aqqad is one of 23 buildings in old Damascus which come under the UNESCO World Heritage programme, but when the Danish Institute in Damascus took over the house in 1997 it had been derelict for 50 years and was in a very sorry state indeed. In the following years Danish architects and restorers worked together with Syrian colleagues on an admirable restoration of the house. Step by step new aspects turned up, showing that the building was not only a beautiful house with a long history - the house is founded on the Roman theatre of Herod - but also that it contained fine examples of the most important periods in the architectural history of Damascus. In this lavishly illustrated book the story of the house and its resurrection is told by architects, restorers, archaeologists and historians and it is a must for anybody who has experienced the joy and fascination of Islamic art and architecture.
Download or read book Preventing Ageing Unequally written by OECD and published by OECD Publishing. This book was released on 2017-10-18 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines how the two global mega-trends of population ageing and rising inequalities have been developing and interacting, both within and across generations.
Download or read book Geomagnetism and Aeronomy written by A. H. Waynick and published by . This book was released on 1965 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biodeterioration 7 written by D. R. Houghton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 865 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the magnificent response to the call for papers for the 7th International Biodeterioration Symposium held at Cambridge, UK, some difficulties have been experienced in the editing of these proceedings. The numbers of papers submitted exceeded expectation and because of this it has been necessary to accommodate those not actually in the proceedings into the International Biodeterioration journal. A small number of papers were not suitable for publication and were therefore eliminated. Many authors disregarded the guidelines laid down for the length of submitted papers. However, every attempt has been made to accommodate the maximum number of contributions in the proceedings. The original selection included those which most nearly conformed to the length requirement. Even so this has meant, in many cases, cutting down the text, eliminating tables and/or illustrations and pruning the reference list. When references have been trimmed a note has been included to the effect that an extended list may be obtained from the author/senior author. Where it was not possible to carry out these procedures without seriously altering the text and the import of the paper they have been included amongst those to be published in the journal International Biodeterioration. The exceptions to the procedures outlined above are the invited review papers which have been presented in full. Happily, the authors have been conscientious in keeping to the guidelines laid down for these contributions.
Download or read book Before Your Diet written by Wolfgang Manuel Kellert and published by Wolfgang Manuel Kellert de Villegas. This book was released on 2017-04-25 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you need a health coach, read this first. If you are a health coach, give this book to your client before your first session. There are some things you really need to know before your diet!
Download or read book Marxism and Literary Criticism written by Terry Eagleton and published by Univ of California Press. This book was released on 1976-08-16 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Far and away the best short introduction to Marxist criticism (both history and problems) which I have seen."--Fredric R. Jameson "Terry Eagleton is that rare bird among literary critics--a real writer."--Colin McCabe, The Guardian
