混凝土裂缝的形成和控制 - 图文(6)

2019-02-16 17:43

X X学 院 毕 业 论 文

参考文献

[1] 卢云峰.高层建筑地下室钢筋混凝土裂缝的成因和控制[J].中国科技博览,

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[2] 邓小芳.浅谈某房屋建筑工程钢筋混凝土裂缝产生原因及防治[J].大众科技,

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[3] 陈裕新.浅析钢筋混凝土裂缝的预防和控制[J].中国高新技术企业,2009(11):178. [4] 张进才,王利,陈倩.浅谈钢筋混凝土裂缝的成因及预防[J].科学之友,

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[5]刘继红,大体积混凝土施工裂缝,J,鞍山科技大学学报,20063

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[10]曹可之.大体积混凝土结构裂缝控制的综合措施.建筑结构,2002,(8) [11] 陈士良,等.现浇楼板的裂缝控制.北京:中国建筑工业出版社,2003 [12]王铁梦.工程结构裂缝控制[M].中国建筑工业出版社,1997. [13]中伟.高性能混凝土[MI.中国铁道出版社,1999.

[14]郭秀岗,郭慧芝.浅谈商品混凝土楼板裂缝的控制措施[L].山西建筑。2011,(21). [15]杨耀祥.浅谈建筑工程施工中裂缝的预防措施[J].中小企业管理与科技(上旬刊),

2010,(07).

[16]才化雨.混凝土工程施工中的裂缝问题与防治.煤炭技术,2009年8期. [17]闫淑在.浅谈混凝土裂缝的原因与控制.技术与市场,2009年第12期.

[18]张卫国,程京忍,张耀峰.现浇混凝土结构裂缝的成因和防治.施工技术,2009年12

月增刊.

[19] 邹德利.混凝土结构裂缝问题分析与防治.四川建筑,2009年9月.

[20]彭圣浩.建筑工程质量通病防治手册(第3版).北京:中国建筑工业出版社.2002. [21]任崇飞.钢筋混凝土结构裂缝的成因及防控处理措施[J].陕西建筑,201l(8).

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1 外文资料

Modern Architecture

Modern architecture, not to be confused with 'contemporary architecture', is a term given to a number of building styles with similar characteristics, primarily the simplification of form and the elimination of ornament. While the style was conceived early in the 20th century and heavily promoted by a few architects, architectural educators and exhibits, very few Modern buildings were built in the first half of the century. For three decades after the Second World War, however, it became the dominant architectural style for institutional and corporate building. 1. Origins

Some historians see the evolution of Modern architecture as a social matter, closely tied to the project of Modernity and hence to the Enlightenment, a result of social and political revolutions.

Others see Modern architecture as primarily driven by technological and engineering developments, and it is true that the availability of new building materials such as iron, steel, concrete and glass drove the invention of new building techniques as part of the Industrial Revolution. In 1796, Shrewsbury mill owner Charles Bage first used his ‘fireproof’ design, which relied on cast iron and brick with flag stone floors. Such construction greatly strengthened the structure of mills, which enabled them to accommodate much bigger machines. Due to poor knowledge of iron's properties as a construction material, a number of early mills collapsed. It was not until the early 1830s that Eaton Hodgkinson introduced the section beam, leading to widespread use of iron construction, this kind of austere industrial architecture utterly transformed the landscape of northern Britain, leading to the description, \satanic mills\of places like Manchester and parts of West Yorkshire. The Crystal Palace by Joseph Paxton at the Great Exhibition of 1851 was an early example of iron and glass construction; possibly the best example is the development of the tall steel skyscraper in Chicago around 1890 by William Le Baron Jenney and Louis Sullivan. Early structures to employ concrete as the chief means of architectural expression (rather than for purely utilitarian structure) include Frank Lloyd Wright's Unity Temple, built in 1906 near Chicago, and Rudolf Steiner's Second Goetheanum, built from 1926 near Basel, Switzerland.

Other historians regard Modernism as a matter of taste, a reaction against eclecticism and the lavish stylistic excesses of Victorian Era and Edwardian Art

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X X学 院 毕 业 论 文

Nouveau.

Whatever the cause, around 1900 a number of architects around the world began developing new architectural solutions to integrate traditional precedents (Gothic, for instance) with new technological possibilities. The work of Louis Sullivan and Frank Lloyd Wright in Chicago, Victor Horta in Brussels, Antoni Gaudi in Barcelona, Otto Wagner in Vienna and Charles Rennie Mackintosh in Glasgow, among many others, can be seen as a common struggle between old and new. 2. Modernism as Dominant Style

By the 1920s the most important figures in Modern architecture had established their reputations. The big three are commonly recognized as Le Corbusier in France, and Ludwig Mies van der Rohe and Walter Gropius in Germany. Mies van der Rohe and Gropius were both directors of the Bauhaus, one of a number of European schools and associations concerned with reconciling craft tradition and industrial technology.

Frank Lloyd Wright's career parallels and influences the work of the European modernists, particularly via the Wasmuth Portfolio, but he refused to be categorized with them. Wright was a major influence on both Gropius and van der Rohe, however, as well as on the whole of organic architecture.

In 1932 came the important MOMA exhibition, the International Exhibition of Modern Architecture, curated by Philip Johnson. Johnson and collaborator Henry-Russell Hitchcock drew together many distinct threads and trends, identified them as stylistically similar and having a common purpose, and consolidated them into the International Style.

This was an important turning point. With World War II the important figures of the Bauhaus fled to the United States, to Chicago, to the Harvard Graduate School of Design, and to Black Mountain College. While Modern architectural design never became a dominant style in single-dwelling residential buildings, in institutional and commercial architecture Modernism became the pre-eminent, and in the schools (for leaders of the profession) the only acceptable, design solution from about 1932 to about 1984.

Architects who worked in the international style wanted to break with architectural tradition and design simple, unornamented buildings. The most commonly used materials are glass for the facade, steel for exterior support, and concrete for the floors and interior supports; floor plans were functional and logical. The style became most evident in the design of skyscrapers. Perhaps its most famous manifestations include the United Nations headquarters (Le Corbusier, Oscar Niemeyer, Sir Howard Robertson), the

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X X学 院 毕 业 论 文

Seagram Building (Ludwig Mies van der Rohe), and Lever House (Skidmore, Owings, and Merrill), all in New York. A prominent residential example is the Lovell House (Richard Neutra) in Los Angeles.

Detractors of the international style claim that its stark, uncompromisingly rectangular geometry is dehumanising. Le Corbusier once described buildings as \for living\not machines and it was suggested that they do not want to live in machines. Even Philip Johnson admitted he was \with the box.\Since the early 1980s many architects have deliberately sought to move away from rectilinear designs, towards more eclectic styles. During the middle of the century, some architects began experimenting in organic forms that they felt were more human and accessible. Mid-century modernism, or organic modernism, was very popular, due to its democratic and playful nature. Alvar Aalto and Eero Saarinen were two of the most prolific architects and designers in this movement, which has influenced contemporary modernism.

Although there is debate as to when and why the decline of the modern movement occurred, criticism of Modern architecture began in the 1960s on the grounds that it was universal, sterile, elitist and lacked meaning. Its approach had become ossified in a \that threatened to degenerate into a set of mannerisms. Siegfried Giedion in the 1961 introduction to his evolving text, Space, Time and Architecture (first written in 1941), could begin \the moment a certain confusion exists in contemporary architecture, as in painting; a kind of pause, even a kind of exhaustion.\At the Metropolitan Museum of Art, a 1961 symposium discussed the question \Architecture: Death or Metamorphosis?\In New York, the coup d'état appeared to materialize in controversy around the Pan Am Building that loomed over Grand Central Station, taking advantage of the modernist real estate concept of \rights\In criticism by Ada Louise Huxtable and Douglas Haskell it was seen to \the Park Avenue streetscape and \the reputations of its consortium of architects: Walter Gropius, Pietro Belluschi and the builders Emery Roth & Sons. The rise of postmodernism was attributed to disenchantment with Modern architecture. By the 1980s, postmodern architecture appeared triumphant over modernism, including the temple of the Light of the World, a futuristic design for its time Guadalajara Jalisco La Luz del Mundo Sede International; however, postmodern aesthetics lacked traction and by the mid-1990s, a neo-modern (or hypermodern) architecture had once again established international pre-eminence. As part of this revival, much of the criticism of the

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X X学 院 毕 业 论 文

modernists has been revisited, refuted, and re-evaluated; and a modernistic idiom once again dominates in institutional and commercial contemporary practice, but must now compete with the revival of traditional architectural design in commercial and institutional architecture; residential design continues to be dominated by a traditional aesthetic.

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