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Revestimientos y acabados superficiales en construcciones con tierra contemporáneas  [cached]
Castilla, F. J.
Informes de la Construccion , 2011,
Abstract: Earth construction is in increasing demand in some areas of building activity, which means a need for technical solutions to maintain and preserve the properties of earth walls. Like earth wall construction techniques themselves, materials used for rendering (plastering, painting, panelling, etc) have evolved in a way that allows us to find formal solutions suitable for every architectural situation. This paper deals with the special features of each rendering technique available in contemporary construction, from renderings permitting earth wall textures and finish to be appreciated, to plasters from different materials. Special attention will be focused on clay plasters, which are more appreciated due to its natural characteristics and compatibility with the base wall. The explanations are supported by different examples of buildings where these techniques have been used during the last two decades. La creciente demanda para la construcción de muros de tierra en algunos ámbitos del sector de la edificación conlleva la necesidad de plantear soluciones constructivas que permitan el adecuado mantenimiento de las prestaciones de dichos muros. Al igual que las propias técnicas para la construcción de los muros, los materiales utilizados para su revestimiento y protección han evolucionado permitiendo una gran variedad de soluciones formales acordes a cada situación. En este artículo se pretende hacer una revisión sobre las particularidades de las diferentes posibilidades que se presentan en el panorama de la construcción actual: desde los revestimientos que permitan mantener a la vista los acabados de los muros de tierra a los revocos de distinta naturaleza, con especial incidencia en aquellos que utilizan la propia tierra como material base, siendo los más apropiados a priori por su natural compatibilidad con el soporte. La explicación se acompa ará de ejemplos ilustrativos de la aplicación de dichas técnicas en edificios construidos durante las dos últimas décadas.
On the presence of Upper Paleocene rocks in the foreland succession at Cabo Nariz, Tierra del Fuego, Chile: geology and new palynological and U-Pb data Acerca de la presencia de rocas del Paleoceno Superior en la sucesión de antepaís de Cabo Nariz, Tierra del Fuego, Chile: geología y nuevos datos palinológicos y de U-Pb  [cached]
Alejandro Sánchez,Polina Pavlishina,Estanislao Godoy,Francisco Hervé
Andean Geology , 2010,
Abstract: On the west coast of Tierra del Fuego, south of Cabo Nariz, in Chile, Upper Cretaceous to Paleocene sedimentary successions of the Magallanes foreland basin crop out. The presence of dinoflagellate cysts, as well as radiometric U-Pb SHPJMP dating of detrital zircons, indicate that this succession ranges from the Campanian to Thanetian (Late Paleocene) in age. The base of the exposed sedimentary succession comprises siltstones of external platform facies (Cerro Cuchilla Formation), which are thrust over the Cabo Nariz Beds. The latter fonnation is divided into two members: a lower siltstone-dominated turbidite facies member and an upper member of sandstone-dominated turbidites, with sandstone and conglomérate channel facies. The presence of dinocysts in the Cerro Cuchilla Formation suggests a late Campanian to early Danian age. The fossil content in the Cabo Nariz Beds indicate a Selandian (Middle Paleocene) depositional age in accordance with the detrital zircon ages which provide a maximum possible Campanian age (76.5±0.7 Ma), and very close to the Thanetian (Late Paleocene) (57.6±1 Ma) depositional ages for the lower and upper member, respectively. The sedimentary succession of Cabo Nariz Beds, is interpreted as a north-northwest prograding submarine fan of middle to Late Paleocene age. It is considered to represent the deposition of detritus derived from an uplifting orogen located to the south. The detrital zircon age spectra suggest that there was a period of low intensity of magmatic activity in the source area around the K-T boundary. En la costa occidental de Tierra del Fuego, al sur de Cabo Nariz, Chile, a oran sucesiones sedimentarias de antepaís cretácicas tardías a paleocenas de la cuenca de Magallanes. Tanto su contenido de dinoquistes como las edades de circones detríticos indican que comprenden un intervalo de edades entre el Campaniano tardío y el Thanetiano (Paleoceno Tardío). La base de la sucesión sedimentaria expuesta comprende limolitas de facies de plataforma externa (Formación Cerro Cuchilla), la cual cubre tectónicamente los estratos de Cabo Nariz. Estos últimos se dividen en dos miembros: uno inferior de facies turbidíticas con predominio de limolitas y un miembro superior también de facies turbidíticas, pero con predominio de areniscas y facies de canales ricos en areniscas y conglomerados. De acuerdo a la presencia de dinoquistes, la Formación Cerro Cuchilla tiene edades comprendidas entre el Campaniano tardío y el Daniano temprano. El contenido fosilífero de los estratos de Cabo Nariz, indica una edad deposicional selandiana
Construcciones a base de tierra  [cached]
Alvarez Alonso, Marina,Guinea, Ma. Jesús,Díaz-Romeral, Juan
Informes de la Construccion , 1984,
Abstract: Work has been carried out based on the new possibilities of using earth in construction, after considering its interest in previous times and the new possibilities which it offers in the face of criticism imposed by the energy crisis. Predicted housing needs up to the year 2000 have been considered along with other parameters which have once again grown in importance on being compared economically with industrialized materials, construction systems, solutions oriented towards the developing countries, etc. Work continues along the first lines of practical experimentation, developed by the team working on low-cost housing oriented towards the search for and the promotion of abundant local resources such as earth, avenues of research whose starting-point involves the team becoming acquainted with techniques and materials during the course conducted in Ciadue a (Soria). The technical aspects of earthen material are described: these have been developed along the same lines as initial practical experiments oriented towards the most suitable selection of its components, once the bibliographical data related to this subject have been collated. Amongst the technical considerations, a more exhaustive exposition has been reached concerning: 1) Existing techniques: adobe bricks, packed earth (moulds for mudwalls), etc. 2) The most appropriate component percentages for the selection of material considered to be preferable for each of the previous techniques. 3) Considerations of the physical and mechanical aspects of existing machinery and that undergoing testing, as well as the possibilities with regard to its being put into operation, comparative costs, etc. 4) The study of the possibilities for improving the characteristics of earthen material, by means of different stabilization techniques (making it compact, granulometric corrections, physicochemical stabilizers, bitumen, industrial products, etc.). The article ends with a series of conclusions oriented towards dissipating possible prejudices which exist with regard to earthen constructions. Trabajo realizado y basado en las nuevas posibilidades de las construcciones con tierra, una vez considerado su interés en épocas anteriores y las nuevas posibilidades que ofrece ante la crítica impuesta por la crisis de la energía. Se hacen consideraciones sobre las necesidades de vivienda previstas hasta el a o 2000 y otros parámetros que vuelven a ser importantes al confrontarlos económicamente con los materiales industrializados, sistemas de construcción, soluciones orientadas a los países en vías de desarrollo, etc. Co
Tierra del Fuego (Chile) y los paisajes culturales extremos
Garcés Feliú,Eugenio;
Apuntes: Revista de Estudios sobre Patrimonio Cultural - Journal of Cultural Heritage Studies , 2009,
Abstract: this paper analyzes the application of the concept of extreme cultural landscape to the island of tierra del fuego (chile). the analytical perspective is based on the concept of cultural landscape, complemented by the notion of palimpsest, to which is added the notion of extreme for the case of tierra del fuego. for these purposes, its extreme natural landscapes are presented; the navigators, travelers and scientists who explored the island and whose testimonials form a corpus of narratives and maps, are mentioned; the aboriginal culture of the selknam, that settled the island from 11,000 years bc, are described; and the economic colonization, based on the exploitation of natural resources of the island, is analyzed. in tierra del fuego, the works of man and nature have been combined, illustrating the different ways in which man occupied this territory and altered its geography and climate with productive purposes, forming extreme cultural landscapes. from these issues arise the management questions and specific challenges that this territory generates. in order to approach them, at least partially, an applied research in relationship with the design of cultural routes for tierra del fuego is being developed.
Two records of Acanthochaenus luetkenii (Gill, 1884) off southern Chile (Pisces: Stephanoberyciformes: Stephanoberycidae) Dos registros de Acanthochaenus luetkenii (Gill, 1884) en el sur de Chile (Pisces: Stephanoberyciformes: Stephanoberycidae)  [cached]
Richard F Feeney
Investigaciones Marinas , 2006,
Abstract: Two specimens were collected by the USNS Eltanin west of Chiloé Island in 1962 and off Tierra del Fuego in 1963 and deposited in the Natural History Museum of Los Angeles County identified only as stephanoberycids. They represent the first reported records of Acanthochaenus luetkenii (Gill, 1884) from Chile and the southeastern Pacific Ocean Dos especímenes colectados por el USNN Eltanin, uno al oeste de la isla de Chiloé en 1962 y otro frente a Tierra del Fuego en 1963, fueron depositados en el Museo de la Historia Natural del Condado de Los ángeles, identificados solamente como stephanoberycids. Estos especímenes constituyen los primeros registros de Acanthochaenus luetkenii (Gill, 1884) en Chile y en el Pacífico suroriental
Casa Duhart, Chile  [cached]
Emilio Duhart
ARQ , 2004,
Abstract: El libro "Huellas de Edificios" de Eduardo Sacriste, con plantas desde la antigüedad hasta el siglo XX -todas a la misma escala- sirvió para decidirnos a publicar un conjunto de plantas, a escala 1:250, de arquitectura chilena. Las plantas se han dividido en dos grupos. El primero corresponde a una serie de casas -viviendas unifamiliares, un colectivo de vivienda social y un loft- construidas entre los a os 1946 y 2002. El segundo conjunto, cuyas plantas sobrepasan casi siempre los límites de la página, presenta cuatro edificios incluyendo el ex-hotel Carrera, cuya actual transformación en Cancillería es un enigma para el sentido común. El reemplazo del proyecto ganador del concurso de 2001, una propuesta de igual costo, ha a presurado la decadencia de los concursos públicos de Chile. Agradecemos a nuestro colaboradores, quienes pusieron a nuestra disposición los dibujos de sus proyectos, y especialmente a Fernando Pérez Oyarzun y a sus alumnos del Seminario "Teoría y práctica del espacio doméstico" de la Escuela de Arquitectura de la U.C., por el material entregado que constituye la base de una parte importante de esta publicación. Eduardo Sacriste's book "Building Footprints", showing plan views from antiquity to the 20th century all at the same scale, inspired us to publish a set of ground plans at 1:250 scale of Chilean architecture. The plans are divided into two groups. The first group is a series of houses -single-family homes, a social housing collective and a loft- built between 1946 and 2002. The second group is a set of building floor plans that extend beyond the limits of the page in almost every case. It includes the former Hotel Carrera whose renovation to house the Foreign Ministry still defies common sense. Substituted for the proposal of equal cost that won the 2001 tender, it has contributed to bringing the Chilean public tender process into disrepute. Our thanks go to all our contributors who allowed us to use their drawings. Especially to Fernando Pérez Oyarzun and his students in the 2003 "Theory and Practice of Domestic Space" seminar at the U.C.'s School of Architecture for the survey material they supplied to us, which forms the basis of a significant part of this publication
Reinaldo Catalán y Francisco Oyarzún, baqueanos del sur de Tierra del Fuego (Chile) y su participación en el origen de la senda de penetración Vicu a - Yendegaia Reinaldo Catalán and Francisco Oyarzún, baqueanos from south of Tierra del Fuego (Chile) and their role in the origin of the penetration path to Vicu a - Yendegaia  [cached]
Magallania , 2012,
Abstract: Han pasado 33 a os desde que dos baqueanos fueron los responsables del éxito de la expedición encomendada a Hans Niemeyer Fernández (1921-2005), cuyo objetivo era analizar la factibilidad técnica de la construcción de un camino al sur de Tierra del Fuego (Chile). A lo largo de este documento se entregan no tan sólo antecedentes fotográficos y escritos inéditos de esta expedición, poco conocida, realizada entre los meses de febrero y marzo de 1978, sino que también, información sobre la vida de los baqueanos a los cuales se debió su éxito. El fruto de esta travesía es la actual construcción de la senda de penetración Vicu a - Yendegaia cuyo fin es conectar a la Isla Grande de Tierra del Fuego en toda su longitud a través de una vía terrestre. 33 years have passed since two baqueanos where the responsible men of the successful expedition entrusted to Hans Niemeyer Fernández (1921-2005), whose aim was to analyze the technical feasibility for constructing a road in the south of Tierra del Fuego (Chile). Throughout this document not only, photographic precedents and unpublished writings of this little-known expedition, made between the months of February and March 1978, are delivered, but also information about the life of the baqueanos who were the responsible of its success. The fruit of this voyage is the current construction of the penetration path Vicu a - Yendegaia whose aim is to connect Tierra del Fuego in all its overland extent.
Mesozoic sedimentation on an isolated platform at the eastern entrance to the Strait of Magellan, Tierra del Fuego (Chile)  [cached]
Jesús A. Sánchez,Jacobus P. Le Roux
Revista geológica de Chile , 2003,
Abstract: The Magellan Block, located on the modern Atlantic continental platform opposite the Strait of Magellan (Chile), consists of two parallel, northwest trending horsts partly separated by a central graben. Petroleum has been recovered from the Springhill Formation, deposited on this isolated platform during the Valanginian-Barremanian, since 1994. This formation represents an overall transgressive succession with three subcycles of transgression and regression (parasequences) separated by marine flooding surfaces. The two basal parasequences are related either to minor sea level fluctuations or to fault activity, whereas the uppermost cycle reflects a major transgression affecting the whole Magellan Basin. Depositional facies associations include supratidal, intertidal, barrier beach and shoreface environments, generally showing a clear correlation with the paleotopography of the horst blocks. While barrier beaches formed along the topographically higher areas, inter- and supratidal flats and shoreface sediments were deposited on their land- and seaward sides, respectively. Tidal flats also bordered the shallow embayment formed by the central graben. Continued transgression subsequently drowned the island to form a wide, open platform on which the Estratos con Fravella Formation was deposited Sedimentación mesozoica sobre una plataforma aislada en la entrada oriental del estrecho de Magallanes, Tierra del Fuego (Chile). El Bloque área Magallanes está situado en el océano Atlántico, dentro de la actual plataforma continental Argentina. Se ubica en la desembocadura oriental del estrecho de Magallanes y consiste de dos cordones de altos estructurales, de orientación noroeste, que constituyen un horst, parcialmente separado por un graben central. En esta estructura se han encontrado y producido hidrocarburos desde el a o 1994 desde la Formación Springhill, la cual se depositó durante el Valanginiano-Barremiano. Esta formación representa una transgresión marina regional con tres subciclos de transgresión-regresión (parasecuencias) separados por superficies de inundación marina. Las dos parasecuencias basales están relacionadas con variaciones menores del nivel del mar o por actividad de fallas, mientras que el subciclo superior refleja una gran transgresión, que se extiende en casi toda la cuenca Austral. Las asociaciones de facies depositacionales identificadas incluyen supramareales, intermareales, playa barrera y ambientes de frente de playa, las cuales guardan una relación clara con la paleotopografía del bloque. De esta manera, las playas-barrera se deposi
Magallania (Punta Arenas) , 2007, DOI: 10.4067/S0718-22442007000200007
Abstract: the context of an archaeological site with special characteristics, because it is immerse in a peat bog and for its dated age of ca. 4.000 bp, is described. the lithic and archaeofaunistic analysis of myren 2 site support the idea that it is hard to ascribe functionally, thought it contains interesting information and an outstanding character for tierra del fuego
On the presence of Upper Paleocene rocks in the foreland succession at Cabo Nariz, Tierra del Fuego, Chile: geology and new palynological and U-Pb data
Sánchez,Alejandro; Pavlishina,Polina; Godoy,Estanislao; Hervé,Francisco; Fanning,C. Mark;
Andean geology , 2010,
Abstract: on the west coast of tierra del fuego, south of cabo nariz, in chile, upper cretaceous to paleocene sedimentary successions of the magallanes foreland basin crop out. the presence of dinoflagellate cysts, as well as radiometric u-pb shpjmp dating of detrital zircons, indicate that this succession ranges from the campanian to thanetian (late paleocene) in age. the base of the exposed sedimentary succession comprises siltstones of external platform facies (cerro cuchilla formation), which are thrust over the cabo nariz beds. the latter fonnation is divided into two members: a lower siltstone-dominated turbidite facies member and an upper member of sandstone-dominated turbidites, with sandstone and conglomérate channel facies. the presence of dinocysts in the cerro cuchilla formation suggests a late campanian to early danian age. the fossil content in the cabo nariz beds indicate a selandian (middle paleocene) depositional age in accordance with the detrital zircon ages which provide a maximum possible campanian age (76.5±0.7 ma), and very close to the thanetian (late paleocene) (57.6±1 ma) depositional ages for the lower and upper member, respectively. the sedimentary succession of cabo nariz beds, is interpreted as a north-northwest prograding submarine fan of middle to late paleocene age. it is considered to represent the deposition of detritus derived from an uplifting orogen located to the south. the detrital zircon age spectra suggest that there was a period of low intensity of magmatic activity in the source area around the k-t boundary.
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