Modern Innovations and Sustainability

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I help you drift off one fact at a time I'm your host, Benjamin Boster And today's episode is about skyscrapers Thinking about refreshing the carpet in your home, now's the time to do it. For a limited time at the Home Depot, get ten percent off installed carpet projects on trusted brands like Lproof, Lifeproof with Pet proroof teechnology, Home Decorators colloection, and Traffic Master Plus, with installations starting at just forty nine cents per square foot, upgrading your space is more affordable than ever at the Home Depot Offer valid, june eleventh, twenty six through june twenty eighth, twenty twenty six. exclusions apply for licenses see Homedepot dot com slash license numbers. So good, so good. New markdowns up to seventy percent off are at Nordstrom rack stores now. Stock up and stay big on shoes, tops, dresses, accessories, and more must haveves for summer. Join the Nordy Club to unlock exclusive discounts, shop new arrivals first, and more. Plus, buy online and pick up at your favorite rack store for free Great brands, great prices. That's why you rack Skyscraper is a very tall building. or otherwise permanently habitable structure Typically defined as reaching a minimum height of either one hundred meters or one hundred and fifty meters in height However, there remains no universally accepted definition of a skyscraper other than being a high rise Skyscrapers can host a variety of spaces tyypically including office commercialcial hotel and residential space. Skyscrapers are a common feature in the downtown or central business districts of major cities especially in the Americas Asia and Australia often due to a high demand for space, and limited availability of land The majority of skyscrapers are designed with a steel frame and shear walls that support curtain walls These curtain walls either bear on the framework below or are suspended from the framework above. rather than resting on load bearing walls of conventional construction Some early skyscrapers have a steel frame that enables the construction of load bearing walls taller than those made of reinforced concrete Modern skyscraper walls are not load bearing and are characterized by large surface areas of windows possible by steel frames and curtain walls However, skyscrapers can have curtain walls that mimic conventional walls with a small surface area of windows Modern skyscrapers often have a tubular structure and are designed to act like a hollow cylinder to resist wind seismic and other lateral loads to appear more slender Allow less wind exposure and transmit more daylight to the ground Many skyscrapers are builled with setbacks which in some cases is also structurally required Skyscrapers first appeared in the United States at the end of the nineteenth century Especially in the cities of Chicago and New York City Following a building boom across the Western world in the early twentieth century Skyscraper development was halted in the nineteen thirties by the Great Depression and did not resume until the nineteen fifties A skyscraper boom in the downtowns of many American cities took place during the nineteen sixties to nineteen eighties Towwards the second half of the twentieth century Skyscrapers began to be built more frequently outside the United States particularly in East Asia and Southeast Asia during the nineteen nineties China has since overtaken the United States as a country with the most skyscrapers. skyscrapers are an increasingly global phenomenon and can be found in at least seventy countries. There are over seven thousand skyscrapers over one hundred and fifty meters in height worldwide. Most of which were built in the twenty first century Over three quarters of skyscrapers taller than one hundred and fifty meters are located in Asia twentywenty cities in the world have at least one hundred skyscrapers that are taller than one hundred and fifty meters Most recently, Singapore Hong Jo Moscow Toronto in twenty twenty five The city with the most skyscrapers in the world is Hong Kong with a total of five hundred and sixty nine skyscrapers by SXhenzhen China was four hundred and sixty five New York City in the United States with three hundred and twenty four and Dubai United Arab Emirates with two hundred and sixty nine The tallest skyscraper in the world. Is the Burgish Khalifa in Dubai with a height of eight hundred and twenty eight meters The term skyscraper was first applied to buildings of steel framed construction of at least ten stories in the late nineteenth century. A result of public amazement at the tall buildings being built in major American cities like New York City Philadelphia. Boston Chicago, Detroit and Stain. Louis The first steel frameed skyscraper was the home insurance building Originally ten stories for the height of forty two meters one hundred and thirty eight feet in Chicago in eighteen eighty five Two additional stories were added Some point to Philadelphia's ten story Jane building as a proto skyscraper or to New York's seven floor equitable life builduilding bu in eighteen seventy steel skeleton construction has allowed for today's super tall skyscrapers now being built worldwide The nomination of one structure versus another being the first skyscraper Why depends on what factors are stressed The structural definition of the word skyscraper was refined later by architectural historians based on engineering developments of the eighteen eighties that it enabled construction of tall multi story buildings. The definition was based on the steel skeleton opposed to the construction of load bearing masonry passed their practical limit in eighteen ninety one with Chicago's Panadnock building What is the chief characteristic of the tall office building It is lofty It must be tall The force and power of altitude must be in it The glory and pride of exaltation must be in it It must be every inch of proud and soaring thing rising in sheer exaltation that from bottom to top It is a unit without a single descending line Louis Sullivan's the tall office building artistically considered eighteen ninety six Some structural engineers define a high rise as any vertical construction. per which wind is a more significant load factor than earthquake or weight Note that this criterion fits not only high rises but some other tall structures such as towers Different organizations from the United States and Europe define skyscrapers as buildings at least one hundred and fifty meters in height or taller with super tall skyscrapers for buildings higher than three hundred meters and megat tall skyscrapers for those taller than six hundred meters The tallest structure in ancient times was a one hundred and forty six meter great pyramid of Giza in ancient Egypt buuilt in the twenty sixth century BC. It was not surpassed and hide for thousands of years one hundred and sixty meter Lincoln Cathedral having exceeded it in thirteen eleven to fifteen forty nine. before its central spire collapsed. The latter in turn was not surpassed until the five hundred and fifty five foot Washington mononument in eighteen eighty four which was surpassed by the Eiffel Tower in eighteen eighty nine The first ever super tall structure However, being uninhabited None of these structures actually comply with a modern definition of a skyscraper In nineteen thirty, the Chrysler building surpassed the Eiffel Tower by pinnacle Hide beccoming the tallest structure build until then and the first super tall skyscraper by Pinnacle Hide only to be surpassed a year later In every regard by the Empire State builduilding as the first super tall skyscraper alsoso by a roof hide High rise apartments flourished in classical antiquity Ancient Roman, insily and imperial cities reach ten and more stories Beginning with Augustus's. Several emperors attempted to establish limits of twenty to twenty five meters for multi stories buildings But where metet was only a limited success Lower floors were typically occupied by shops or wealthy families. What's the upper rented to the lower classes Surviving oxarynus papye indicate that seven stories buildings existed in provincial towns such as in third century AD Hermopolis in Roman Egypt The skylines of many important medieval cities had large numbers of high rise urban towers by the wealthy for defense and status The residential towers of twelfth century Bologna numumbered between eighty and one hundred at a time The tallest of which is the ninety seven point two meter high Azaneli Twer. A Florentine law of twelve fifty one decreed that all urban buildings be immediately reduced to less than twenty six meters Even medium sized towns of the era are known to have proliferations of towers Such as the seventy two towers that ranged up to fifty one meters in height S San Gimanano. The medieval Egyptian city of Hustan housed many high rise residential buildings which Al Mukadasi in the tenth century described as resembling minarets Nazir Kzraah in the early eleventh century Dcribe some of them rising up to fourteen stories with roof gardens on the top floor te with oxdrawn water wheels for irrigating them Cairo in the sixteenth century had high rise apartment buildings where the two lower floors were for commercial and storage purposes And the multiple stories above them were rented out to tenants An early example of a city consisting entirely of high rise housing is the sixteenth century city of Shibam in Yemen Sheibum was made up of over five hundred tower houses Each one rising five to eleven stories high with each floor being an apartment occupied by a single family The city was built in this way in order to protect it from Bedouin attacks. She Bum still has the tallest mud brick buildings in the world was many of them over thirty meters high An early modern example of high rise housing was in the seventeenth century Edinburgh, Scotland where a defensive city wall defined the boundaries of the city due to the restricted land area available for development The houses increased in height instead Buildings of eleven stories were common And there are records of buildings as high as fourteen stories Many of the stone built structures can still be seen today in the old town of Edinburgh The oldest iron framed building in the world. although only partially iron framed is the Faxmill in Shrewsbury, England buuilt in seventeen ninety seven It is seen as the grandfather of skyscrapers since it's fireproof combination of cast iron columns and cast iron beams developed into the modern steel frame that made modern skyscrapers possible In twenty thirteen, funding was confirmed to convert the derelict building into offices In eighteen fifty seven, Elisha Otis introduced the safety elevator at the EV How up builduing in New York City allowing convenient and safe transport for buildings's upper floors. Otis later introduced the first commercial passenger elevators to the Equitable Life Building in eighteen seventy. consonsidered by some architectural historians to be the first skyscraper Another crucial development was the use of a steel frame instead of stone or bricks Otherwise the walls on the lower floors is on a tall building. would be too sick to be practical An early development in this area was Orial chambers in Liverpool, England Built in eighteen sixty four It was only five floors high. The Royal Academy of Arts states Critics at the time were horrified by its large agglomerations of protruding plate glass bubbles. In fact, it was a precursor to modernist architecture being the first building in the world to feature a metal framed glass curtain wall A design element which creates light airy interiors and has since been used the world over as a defining feature of skyscrapers Further developments led to what many individuals and organizations consider the world's first skyscraper The ten story home insurance Building in Chicago Bilt from eighteen eighty four to eighteen eighty five While its original height of forty two point one meters does not qualify as a skyscraper today, It was record setting for the day The building of tall buildings in the eighteen eighties gave the skyscraper its first architectural movement broadly term the Chicago School which developed what has been called the commercial style The architect, Major William Le Bberon Jenny created a load bearing structural frame in this building A steel frame supported the entire weight of the walls instead of load bearing walls carrying the weight of the building This was then draped with a stone curtain for aesthetic purposes. This development led to the Chicago skeleton form of construction In addition to the steel frame The home insurance building also utilized fireproofing Elevators and electrical wiring key elements in most skyscrapers today. Burnham and Rots. forty five meters Rand McNally building in Chicago eighteen eighty nine was the first all steel frameed skyscraper while Louis Sullivan's forty one meter Wainwright building in Sain. Louis, Missouri, eighteen ninety one was the first steel framed building was soaring vertical bands to emphasize the height of the building and is therefore considered to be the first early skyscraper In eighteen eighty nine, the Mle Antonlliana in Italy was one hundred and seventy nine meters tall Most early skyscrapers emerged in the land strapped areas of New York City and Chicago Tard the end of the nineteenth century A land boom in Melbourne, Australia between eighteen eighty eight and eighteen ninety one red the creation of a significant number of early skyscrapers Though none of these were steel reinforced And few remain today Height limits and fire restrictions were later introduced in the late eighteen hundreds. London builders found building heights limited due to issues with existing buildings High rise development in London is restricted at certain sites if it would obstruct protected views of Stain. Paul's Cathedral. and other historic buildings. This policy, Staint Paul's hides has officially been in operations since nineteen twenty seven Concerns about aesthetics and fire safety had likewise hampered the development of skyscrapers across continental Europe For the first half of the twentieth century By nineteen forty, there were around one hundred high rise buildings in Europe Some of these examples are the forty three meter tall eighteen ninety eight White House in Rotterdam The fifty one point five meter tall past building in Warsaw The Royal Lver Building in Liverpool complepleted in nineteen eleven and ninety meters high The fifty seven meter tall nineteen twenty four Marks house in Dusildorf. The sixty five meter tall Borzigdorm in Berlin. Built in nineteen twenty four The sixty five meter tall Hanza Hokhaouse in Colologia, Germany buuilt in nineteen twenty five The sixty one meter Kungstoren in Stockholm, Sweden which were billt nineteen twenty four to twenty five. The seventy seven meter Ulstein house in Berlin, Germany Bills in nineteen twenty seven the eighty nine meter Edeicio deafonica in Madrid, Spain Built in nineteen twenty nine. The eighty seven point five meter Burntorn in Antwor Belgium built in nineteen thirty two the sixty six meter Predential building in Warsaw, Poland Built in nineteen thirty four and the one hundred and eight meter Core Pacentini in Genoa, Italy Built in nineteen forty After an early competition between New York City and Chicago, For the world's tallest building New York took the lead by eighteen ninety five. was the completion of the one hundred and three meter tall American Sty buildilding Leaving New York was the title of the world's tallest building for many years America by far produced the most skyscrapers in this period. Modern skyscrapers are built with steel or reinforced concrete frameworks and curtain walls of glass or polished stone They use mechanical equipment such as water pumps and elevators. Since the nineteen sixties, according to the CTBU age Councoul on tall buildings and urban habitat The skyscraper has been reoriented away from a symbol for North American corporate power to instead communicate a city or nation's, place in the world The construction of very tall skyscrapers entered a three decades long era of stagnation in nineteen thirty de is the Great Depression and then World War two Sortly after the war ended, Russia began construction on a series of skyscrapers in Moscow Seven dubbed the Seven Sisters between nineteen forty seven and nineteen fifty three And one The main building of Moscow State University was the tallest building in Europe for nearly four decades Other skyscrapers in the style of socialist classicism were erected in East Germany Poland Crane Latvia and other easastern bloc countries. Western European countries also began to permit tall skyscrapers during the years. Immediately following World War II Early examples include Edeficio Espagna in Spain Torory Brada Italy From the nineteen thirties onward, skyscrapers began to appear in various cities in East and Southeast Asia as well as in Latin America Finally, they also began to be constructed in cities in Africa. the Middle East South Asia. and Oceana from the late nineteen fifties Skyscraper projects after World War II typically rejected the classical designs of the early skyscrapers instead embracing a uniform international style Many older skyscrapers were redesigned to suit contemporary tays or even demolished such as New York's Singer builduilding Once the world's tallest skyscraper German American architect Ludwig Mies Vanroka became one of the world's most renowned architects In the second half of the twentieth century, He conceived the glass facade skyscraper. and along with Norwegian Fred Svred Designed the Seagrim builduilding in nineteen fifty eight a skyscraper that is often regarded as the pinnacle of modernist high rise architecture Skyscraper construction surged throughout the nineteen sixties The impetus behind the upswing was a series of transformative innovations which made it possible for people to live and work in cities in the sky In the early nineteen sixties, Bangladeshi American structural engineer Puzzler Raman Kun consonsidered the father of tubular designs for high rises, discovered that the dominating rigid steel frame structure was not the only system abed for tall buildings. marking a new era of skyscraper construction in terms of multiple structural systems Is central innovation in skyscraper design and construction was a concept of the tube structural system including the frame tube Tust tube and bundled tubes His tube concept using all the exterior wall perameter structure of a building to simulate a thin walled tube. revolutionized tall building design These systems allowed greater economic efficiency and also allowed skyscrapers to take on various shapes no longer needing to be rectangular and box shaped The first building to employ the tube structure was the Chest Nut Duet apartment building considered to be a major development in modern architecture These new designs open an economic door for contractors, engineers architects and investors providing vast amounts of real estate space on minimal plots of land Over the next fifteen years, many towers were built by Fzler Raman Khan in the secondecond Chicago School including the hundredundred story John Hancock Center and the massive four hundred and forty two meter Willis tower. Many buildings designed in the nineteen seventies lacked a particular style. and recalled ornamentation from earlier buildings designed before the nineteen fifties These design plans ignored the environment and loaded structures with decorative elements. and extravagant finishes This approach to design was opposed by Fzler Khan. And he considered the designs to be whimsical rather than rational Moreover, he considered the work to be a waste of precious natural resources Kan's work promoted structures integrated with architecture and the least use of material resulting in the smallest impact on the environment The next era of skyscrapers will focus on the environment including performance of structures types of material inststruction practices absolute minimal use of materials and natural resources embodied energy within the structures and more importantly, a holistically integrated building systems approach. Modern building practices regarding super tall structures have led to the study of vanity hide Vanity hyde, according to the CTBUH is the distance between the highest floor and itss architectural top excluding the antennae, blag poole or other functional extensions Vanity Hyde first appeared in New York City skyscrapers as early as the nineteen twenties and nineteen thirties But super tall buildings have relied on such uninhabitable extensions for on average thirty percent of their height raising potential definitional and sustainability issues The current era of skyscrapers focuses on sustainability It's built in natural environments including the performance of structures types of materials instruction practices absolute minimal use of materials and natural resources energy within the structure and a holistically integrated building system approach Le is a current green building standard Architecturally with the movements of post mododernism newew urbanism and new classical architecture that established since the nineteen eighties, a more classical approach came back to global skyscraper design That remains popular today Other contemporary styles and movements in skyscraper design include organic sustainable Neofuturist structuralist Hi tech. deconstructivist blob Digital streamline novelty crritical regionalist ernacular Neo Art Deco and neohistorist alsoso known as revivalist september third is the global commemorative dayay for skyscrapers called skyscraper Day