Tuesday, September 21, 2010

Difference Between Record And Reason

Otto Wagner

Otto-Wagner.jpg Penzing was born in a suburb of Vienna, from a wealthy bourgeois family . In 1857 he enrolled at the University of Vienna and in 1860 he moved to Berlin to continue his studies at Königliche Bauakademie. Here are the courses held by Carl Ferdinand Busse, a student of Schinkel. In 1861 he returned to Vienna and attended the courses of architecture at the Akademie der Künste Bildenden held by August Sicard von and Eduard Sicardsburg van der Null, the famous architects who designed the ring. In 1862 he entered the atelier of Ludwig Förster. In 1894 he became professor of special class of architecture at the Academy of Fine Arts in Vienna. The appointment will last until 1912. In 1899 he joined with his students, Joseph Maria Olbrich (1867-1908) and Josef Hoffmann (1870-1956) headed by the Viennese Secessionist painter Gustav Klimt (Art Nouveau in Austria took on particular characteristics so as to be considered a variant independent the same was called Sezessionstil).
Otto Wagner el'archittettura modern.
However, the change is so radical, so that we can not speak of a rebirth of the Renaissance. About this motion, you can only talk about birth. Otto Wagner.
"But before the genius of Otto Wagner, I lower the sails," said Adolf Loos, the restless and always controversial "revolutionary architecture" may it not be better confirmation of the importance of this artist.
Master of Hoffmann, Olbrich, Loos and Antonio Sant'Elia, he laid the foundations of modern architecture. "The 'dream' of Wagner of being the architect of the Ringstrasse βe, follower of glitz and style of imperial life and upper-class, in stark contrast with Otto Wagner artist of the building, the first archit ect of Vienna Modern. "
Wagner soon began experimenting with concrete urban needs, from the practical point of view as the theoretical one, in projects for the city's subway stations and the Posrsparkasse (Cassa di postal savings) and written in Modern Architecture, 1895. During the years of its inception had been in the processing of Vienna in the metropolis, as a result of the monumental building works - especially on the Ringstrasse βe - that had profoundly changed the character. He However, he was not personally involved, and only with projects for the subway, in 1894, pot is to provide a personal contribution alla configurazione del nuovo volto della città. I primi lavori da lui eseguiti presentano una veste stilistica storicista, con una particolare attenzione per l’architettura classica. Le forme, i dettagli, le planimetrie delle sue prime ville si basano sulle ville neo-rinascimentali del XIX secolo, ma denotano già una notevole chiarezza compositiva e costruttiva. Al pari di Berlage e Behrens, anche Wagner condusse un approfondito studio delle opere di Gottfried Sempre, le cui "lezioni" di storia lo incitarono, insieme ai suoi allievi, a non trascurare l’eredità architettonica per dedicarsi a opere volgari o, peggio, innocue.
Wagner, comunque, si dimostrò più interessato alla progettazione di "casermoni" che non to that of single-family houses, preferring to devote himself to finding solutions to the housing needs of the growing urban population. The two apartment blocks built by Wagner and for rent on Wienzeile fraction represents a milestone in the recognition of "ordinary people" the right to a dignified life. The facades made of Secession, aroused great because of their luxurious appearance. The house is located at 38 of the Linke Wienzeile sported medallions of gilded stucco and Moser, while the number 40 is entirely covered with colored ceramic tiles, bearing ornamental plants and flowers - a clear demonstration of the possibility of successfully combining decoration and architecture.
Dopo un prolungato lavoro preliminare e un’infinità di progetti respinti, nel 1893 iniziarono in lavori per la costruzione della metropolitana di Vienna. Al fine di conferire a questo moderno mezzo di trasporto una forma adeguata ai tempi, nel 1894 Otto Wagner fu nominato consigliere artistico della Commissione Trasporti, responsabile dell’opera. Il suo compito atteneva alla definizione dello stile e del design che doveva improntare le stazioni i ponti, i viadotti e le infrastrutture in genere, fino all’arredamento dei vagoni. Per poter rispettare le scadenze imposte, Wagner aprì il proprio studio – che già comprendeva Hoffmann e Olbrich – alla collaborazione di circa settanta persone dando vita alla prima cellula dell’architettura modern.
The fruits of this artistic collaboration, this was amazing, although the insensitive bureaucracy Viennese period after the First World War, it has destroyed an important part.

station Karlsplatz is characterized by the presence of two pavilions seats opposite one another on both sides of the tracks. Unlike other stations, which were made of plaster finishes, these two halls had a steel skeleton covered with slabs of marble slabs on the outside and plaster inside. These plates bear an embossed pattern that also occurs in sunflower seeds circular pediment. The decor Jugendstil-secessionist gives these two buildings ""funzionali" un carattere quasi sfarzoso.
"Si può star certi che l’arte e gli artisti sono sempre rappresentativi della loro epoca". Con la chiesa di Steinhof, invece, costruita nel 1902, Wagner mise in pratica le proprie concezioni modernistiche nel campo dell’architettura sacra; nonostante l’estrema cura per l’aspetto estetico, anche questo edificio religioso è anch’esso caratterizzato da un vigoroso funzionalismo.
La "nascita": la sede della Österreichische Postsparkasse
Che Wagner fosse un "costruttitivista funzionalista" risulta con evidenza nella sua opera più celebre – la sede della Österreichische Postsparkasse, a Vienna – sia details from both the design of the main space of the room doors.

"The roof of the hall doors, glass un'arcuata epidermis, is suspended on supports that form a network to view, mo 'ceiling. The principle of the suspension bridge is here, perhaps, perhaps for the first time, applied to the construction of a roof. The experiment did not work, because Wagner had not protected the skin layer with a second similar glass.
According to later interpretations, Wagner should have been decided in this way because otherwise the principle of the suspended structure would have been less visible. From the hallway of the large room, you could originally see with look through the windows, the suspended structure, today the same point you can see only the space between the new roof and its outstanding finish. Even so, the feeling is sensational.

Wagner with the team of his colleagues, also took charge of the interior design of the Österreichische Post Office Savings Bank.
From then on, Wagner, "the artist building, adopting new and unconventional materials such as aluminum and covers the facades of its buildings with thin slabs of marble, such as the underground station Karlsplatz . The new material comes to the fore in the building that houses the dispatch office the newspaper "Die Zeit": the iron structure of the entrance was covered with sheet aluminum, and it is precisely because they have given a decisive role in this "baby" material that the building occupies a prominent place in the history of . Among the architectural
subsequent experiments include a delicatessen, with an input white lacquered the "Loos-Portal" while front-store jewelry Spitz temple stood until the mid-thirties.
"All modern creations who want modern humanity should be appropriate to deal with new materials and the changing needs of the present. "
The innovative portal that features the mailroom of" Die Zeit "agree fully with the approach of the newspaper, born from the weekly magazine of the same name with the aim of keeping the keep your audience informed about the rapid developments in the field of art and current events. Here, Wagner "passed" the Secession.
Last Updated (November 8, 2007 at 10:06 PM)

Monday, September 20, 2010

How To Make A Model Uterus

PUSHING THE EARTH

PUSHING THE EARTH

Any material stored silage or exercise against a wall, vertically or inclined, which prevents slips, a push, whose intensity depends on the physical and mechanical properties of the material.
theories for calculating the thrust of the lands, this depends mainly on the bulk density of soil and its friction angle fi, which defines the state of limit equilibrium and identifies, in the absence of cohesion, the level of natural slope, ie that plan under which the mass of earthy, free-falling, of course you have, all the plans that form the horizontal angles alpha> fi represent possible slip planes of the overlying land mass, to be supported by specific works, designed and dimensioned according to the pressure exerted by the mass. First hypothesis

The soil is considered homogeneous in all its parts, that is, you admit his constant physical and mechanical properties. Second hypothesis

If a wall is built of earth fill inconsistent throughout its height, upper bounded by a horizontal or inclined, and unlimited by the other parties, the mass of land immediately causes a push against the wall that undergoes S a slight subsidence, ie a translation or a rotation around the point D.

Before studying the methods of calculation of the thrust of the embankments, some observations are appropriate:
- i valori delle spinte attiva e passiva, essendo definiti in funzione della condizione di equilibrio del muro, consentono a quest'ultimo un lieve spostamento e pertanto possono verificarsi spinte di terrapieni maggiori di Sa, nella seconda ipotesi e minori di Sp nella terza ipotesi;
- nel calcolo della spinta attiva, con un errore praticamente trascurabile e a vantaggio di una maggiore semplicità nel calcolo stesso, la superficie di scorrimento può essere considerata piana anziché curva; tale approssimazione non è possibile nel calcolo della spinta passiva
- nel caso di terreni coerenti e argillosi, eventuali sovraccarichi gravanti sul terrapieno determinano una compressione della massa terrosa con una riduzione dei pori, per which part of 'water content is to accumulate along the sliding surface facilitating the posting of the prism slip and therefore reduces the' angle of friction with the 'increase of the overload;
- the value of the active thrust is calculated under the real one that must withstand up to the wall that the wall has not suffered a mild failure (translation and / or rotation), so it is preferable to a less rigid wall, and therefore more prone to failure, compared to another with high stiffness in As oversized;
- the prism of land that is separated along the sliding surface tends to wedge
to the limited impact it has on the value of the force, in general, this friction is trascurato, anche perché si riduce per la presenza di umidità; quando si vuole considerarlo, se ne tiene conto tramite il relativo angolo di attrito (P, la cui ampiezza può assumere valori: fi = ( 1/2 // 2/3)x fi --> fi1 maggiore o uguale 1/2fi

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FUNCTION OF THE WALLS OF SUPPORT OF SUPPORT WALLS

FUNZIONE DEI MURI In relazione alla loro funzione si possono dividere in:
a) muri di sostegno propriamente detti : l'altezza del muro è uguale quella del terrapieno che deve sostenere e pertanto assolvono a una funzione statica;
b) muri di sottoscarpa : la loro altezza è inferiore a quella del terrapieno per cui il terreno posto oltre il limite superiore costituisce overload and is arranged according to the plan of natural slope
c) walls controripa: sit back and play the way
The two external walls to the ground and are commonly referred to as outer and inner garments.
may have the following types of cross-sections:
a) wall with rectangular cross section only for heights up to 1.80 to 2.00 m;
b) wall with trapezoidal section: it is used for heights of embankments on I-5 , 00-foot range and can be made with facing:
sometimes facing the interior is replaced by cut away, realize any steps 0.1-0.15 m H
c) wall with spurs or buttresses inside or outside: For heights above 5.00 m, in order to reduce the thickness work support, and then make it cheaper, the wall is supported by reinforcements such spurs
d) wall with buttresses and vaulted interior shelves or unloading: for greater heights of 7.00 ~ 8.00 m, the sections until now considered to have high and thick enough that make them cheaper, so the spurs are connected, typically at constant distances from the shelves
rigid support are divided into:
a) retaining walls, gravity must have a high weight thick;
b) retaining walls with vertical slab cantilever: are made of reinforced concrete thickness of those walls is always much content;
c) walls semigravità: with smaller, any tensile stresses are made to flex to absorb a small metal case rather than an increase in the thickness of the wall

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WALLS OF STOPS GNO
works can be divided into rigid and flexible work in relation to the different degree of stiffness that have

support operations consist of the rigid gravity walls, defined as opposed to the thrust of the embankment by weight; thicknesses are always high enough, to rotate disk around a point on the base. The walls are designed only to gravity as a function of the push on, ignoring the passive pressure due to the uncertainty that might actually occur.
The flexible retaining structures can be cantilever type, that is embedded in the soil embankments a1tezza valid for a limited type or anchored in, despite being stuck in yesterday are supported by ropes fixed to the anchors in the ground ready to try a room from the diaphragm, the latter type is adopted for the considerable height
works hoses are calculated as a function of pressure on, neglecting the friction surface-to-wall, and security is only a fraction, about 1 / 3, the passive push. The Flexible work differ from those rigid essentially the way they deform
the construction of supporting structures rigid
natural split stone dry:
of limited height (up 1.20 to 1.50 m)
good static characteristics for its permeability to water and its adaptability to possible. although modest, rustic, stone masonry
more or less square with mortar:
also works great, is now completely abandoned,
solid brick masonry: cement mortar
generally used as a binder and is also now almost abandoned, particularly because his weight by volume, favorable element the stability of the wall is not very high and therefore requires considerable thickness in the wall to be implemented;
masonry concrete casting of cement is to use more common for its relatively low cost
reinforced concrete retaining walls with a considerable height, thereby reducing their thickness; vibrato for precast concrete element: high altitudes (up to 9.00 to 10.00 m) in very limited
gabions in stone: this is enclosed in square containers closed mesh
benefits such remarkable strength for their heavy weight, high permeability and adaptability to failures