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AQ Edition 11th, December 2012

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PT. ARKIPURI INTRA NASIONAL …

PT. ARKIPURI INTRA NASIONAL

Taman Kebon Jeruk Blok G1 No. 58
Jakarta Barat, Indonesia
p +62215304456 / +62215869371
e jakarta@arkdesign-architects.com
w www.arkdesign-architects.com

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  • 1. ‘VERTICAL CITY’ IN JAKARTA CCTV HEADQUARTERS Buzz- WorthyBuilding in 2012 Edition 11th / December 2012
  • 2. EditorsMailHouse 01“It was really enjoyable to view your AQ publication. Well done! Thanks for sharing yourspark with all of us. Congratulations !” - Bruce T. Hennen “Thank you for your email. Send my regards to Bp. Paul Tan.” - Didiet Oetojo “Terima kasih atas pengiriman AQ 10.” - Putu Rumawan IAI, Architect, Bali Design Committee Published by PT. ARKIPURI INTRA NASIONAL ARKdesign Jakarta Office We encourage you to write your comments and opinions to us at Editor in Chief Paul Tan jakarta@arkdesign-architects.com Editor Zenia Rashelia Your letters will be published in the next edition of : “EditorsMailHouse” Graphics ARKdesign Marketing Ellena Chandra is not responsible for the contents of readers letters, however the Editor reserves the right not to publlish letters should it be illegal or counterEDITION 11 DECEMBER 2012 productive to do so.
  • 3. Content 01 EditorsMailHouse 03 PrincipalPoint 04 RecentPublication / "VERTICAL CITY" in Jakarta 07 DesignNews / CCTV Headquarters 11 DesignNews / The Wow Factor CCTV Headquarters 12 DiscourseDiscussion / Big, Bold and Buzz-Worthy Building in 2012 16 DiscourseDiscussion / Concrete Green Building 19 ARKdesignProjects 20 InnovationTechnology 21 Events 22 StayInformed
  • 4. 03 PrincipalPointsWritten by Paul Tan Architects are like “ants” coming to places You can imagine what Jakarta would be like in a where there is plenty of vibrant economic growth decade or even less. A little frightening? A rchitecture “sugar”, like Indonesia today. Particularly in I certainly hope our energetic new Jakarta support of urban developments in the big cities governor and his deputy (who are in our like Jakarta, Surabaya, Medan, and Makassar. mailing list) read these articles because Last edition of AQ 10, we discussed “Urban what the private sector is planning, require Technology Living”, mainly from a personal point of view. huge infrastructure investment, in particular When you travel during the Christmas and New public transportation, garbage, and energy. Year break, you can observe these big cities Food for thought.... in the world you visit. Then reading this edition of AQ 11, we look at the buildings in highly developed urban settings such as Beijing. We We wish you a very peaceful Christmas 2012 also read about projects designed by architects and a prosperous New Year 2013. coming from all over the world, creating their signature in the future plans of large and tall developments in cities such as Jakarta, London, and Dalian.Photo source : http://modelab.nu/?p=689
  • 5. 04RecentPublication MVRDV proposes 400 meter tall ‘vertical city’ in Jakarta by Karissa Rosenfiled on ArchDaily “ inspiration for the commercial podium and public Our spaces was Java’s natural setting – lush jungle and stone surrounded by expansive ocean.” says David Rogers, FAIA, Jerde Design Director.
  • 6. 05 RecentPublicationMVRDV, in collaboration with The Jerde The site, which is ownedPartnership, ARUP, and developer Wijaya Karya by Peruri, is located at– Benhil Property, have unveiled plans to create Jl. Palatehan 4 Jakarta,a new landmark in Jakarta, Indonesia. Dubbed a block formerly used asPeruri 88, the 400 meter tall vertical city integrates Mint which sits right next toretail, offices, housing, a luxury hotel, four levels a future metro station.of parking, a wedding house, a mosque, an imax The mix use project offerstheater and an outdoor amphitheater, with an a great variety of officeextensive amount of green space. and housing typologies,The team presented the plans to city and site from large office surfacesowner, Peruri, as part of a developer’s bid to living/working units,competition for the prominent site. from lofts to townhouses, from terraced houses toPeruri 88 combines Jakarta´s need for green patio living. Each of thesespace with Jakarta´s need for higher densities stacked urban blockswhilst respecting the typologies of the current comes with a semi-publicurban fabric. roof park, an abundance of gardens, playgrounds, spas, gym’s, outdoor restaurants and swimming “Peruri 88 is vertical Jakarta, it represents a new, pools available to the inhabitants and office denser, social, green mini-city – a monument to employees. The tall trees on these decks will provide extra shade whilst the height of the parks the development of Jakarta as a modern icon allows for a cooling breeze.The high rise, a luxury hotel from the 44th floor to the 86th floor, rises literally raised from its own city fabric,” says Winy from a platform with park, swimming pool and the marriage house. On top of the hotel a panoramic Maas, MVRDV co-founder. restaurant and viewing platform complete the structure at the 88th floor. “Peruri 88 is vertical Jakarta, it represents a new, denser, social, green mini-city – a monument to the development of Jakarta as a modern icon literally raised from its own city fabric,” says Winy Maas, MVRDV co-founder.
  • 7. 06 RecentPublicationThe commercial podium which is located from levels B2 to the 7th floor The buildings structure has five principle cores and is less complex thanis designed by Jerde Partnership with MVRDV. Its most characteristic visually apparent. Four traditional constructed tall towers rise up betweenfeature is the central plaza, sheltered by the stacked volumes of the mid- which bridging floors will be constructed. Arup will continue to develop andrise it offers multiple outdoor layers of restaurants and shadow and natural rationalize the structure to satisfy regulations and the budget.ventilation. A series of escalators connects the shopping and retail centreto the parks of the mid-rise.The Peruri 88 commercial podium reflects the city’s historic islands with A number of international hotel, retail and apartment operators have shown . interest in the building and if the team wins construction will start swiftly.reflective bodies of water and landscape traversing the public streetlevels, while integrating a sunken garden plaza. “Our inspiration for thecommercial podium and public spaces was Java’s natural setting – lushjungle and stone surrounded by expansive ocean,” says David Rogers, Rendering by RSI-StudioFAIA, Jerde Design Director. Source : <http://www.archdaily.com/295962>
  • 8. 07 DesignNews Too Big To Fail? : Long awaited and much debated, the enormous headquarters for CCTV finally opens, already a symbol of the new Beijing. But what does it actually say about architecture and China today? P romising to “kill the skyscraper,” Rem Koolhaas and his colleagues at Office for Metropolitan Architecture (OMA) grabbed international attention in 2002 when they won the competition to design a huge headquarters in Beijing for China Central Television (CCTV), the state-run news and entertainment network. Polemical and hyperbolic as usual, Koolhaas said the skyscraper had become “corrupted” by its proliferation around the world and “negated by repetitive banality.” So instead of joining the race to build ever taller, his scheme bent the high-rise into a loop of interconnected activities. Four years after it was originally scheduled to open—in time for the network to broadcast the Beijing Olympics from its new home—CCTV isCCTV Headquarters finally moving employees into the controversial building, a 5.1 million-square-foot structure that even before it was completed had imprinted its swaggering form on the fabric of the city and theOffice for Metropolitan Architecture | Beijing, China mental map of its citizens. The building shares a 45-acre site with a low-rise, ring-shaped service structure and a 31-story tower called the Television Cultural Center (TVCC), both of which OMA also designed.By Clifford A. Pearson on Acrhitectural Record
  • 9. 08DesignNews That form derived from OMA’s program- driven approach to design. “We presented the building as a diagram of all the companys components and made the argument that it was important that they confront each other,” says Koolhaas. Earlier, OMA had worked for Universal Studios on a headquarters in Los Angeles and learned that media companies often suffer from being fragmented. So the firm connected CCTV’s operations—including broadcasting, production, and administration— along a circulation loop that moved from the The service building provides power to the building’s base up a sloping tower, across a entire complex and houses security personnel, right-angled bridge (called the overhang), and while TVCC will have a Mandarin Oriental down a second sloping tower. The underground hotel, a public theater, restaurants, and shops. podium and large, right-angled base provided TVCC famously burned in February 2009 much more contiguous space for studios and when fireworks celebrating the lunar New production facilities than a skyscraper would Year engulfed the buildings skin in flames just have, which appealed to the client’s technology months before the hotel was set to open. It people, reports Koolhaas. is being repaired and should be complete in 2013. The site anchors a new central business district emerging from an industrial area built during the Mao era. Plans call for about 300 high-rises there, which is one reason why “The form of our building OMA took a different approach with CCTV. According to Koolhaas, three of the four other was attractive to the client,” firms competing for the job (KPF, SOM, and says Koolhaas. Dominique Perrault) proposed skyscrapers, while only Toyo Ito offered something different “It set us apart.” (a disc-shaped structure with a small tower). “The form of our building was attractive to the client,” says Koolhaas. “It set us apart.”
  • 10. 09 DesignNewsThe OMA team was led by Koolhaas, OleScheeren (a partner until he left the firm in 2010),partner David Gianotten, and project managerDongmei Yao. The firm worked closely with EastChina Architectural Design & Research Institute,which provided both architecture and engineeringinput.From the beginning of the design process, OMAcollaborated with Cecil Balmond and a teamof engineers at Arup. To resist the huge forcesgenerated by two towers—each sloping sixdegrees in two directions—as well as significantpotential seismic and wind events, Arup deviseda scheme that turns the entire exterior into acontinuous structural tube. This system is formedby a web of diagonal steel braces that expressesthe pattern of forces acting on the building and are less intense, the web is looser. As a result, the in big Chinese cities look dirty almostserves as an important visual element on all of exterior surfaces read as a kind of engineering immediately, but CCTV’s glazing handles thethe facades. Where structural forces are greater, map with a formal beauty of its own. While the pollution by blending in. Combined with thethe web of braces is denser; where the forces towers and exterior braces are angled, the interior irregular pattern of the external bracing that cores housing elevators, stairs, and risers are obscures floor levels, the glass skin makes vertical. Arup and OMA had considered canting it hard to grasp the building’s scale. In certain these elements as well, but the cost of angled light and at certain distances, the 768-foot-tall elevators made it unfeasible. In addition to the structure seems almost to disappear. Yet seen cores, vertical columns support the towers floor from other angles and at other times of the day, plates. Because the towers slant, these vertical it looms aggressively over apartment blocks. columns cant rise the full height of the building. So “From wherever you look at it, it keeps changing two-story-deep trusses transfer loads at roughly in form,” says Scheeren. “It escapes a singular halfway up the structure, and a two-story-deep definition.” transfer deck in the overhang carries loads from “In a city with a strong and permanent identity, vertical columns to the external tube structure. it introduces a degree of uncertainty,” says Koolhaas. “It changes from every angle— The architects clad the building in fritted glazing that reduces solar loads inside and creates sometimes looking robust, sometimes fragile.” a monolithic surface that mimics Beijings Although gigantic in square footage, it would notoriously gray skies. Most curtain-wall buildings have been almost three times as tall (about 2,300
  • 11. 10 DesignNews lobby with its angled ceilings and imposing Has CCTV killed the skyscraper? Of course skylights. People arriving by subway emerge not—a fact made clear by the towers starting here too, ascending an escalator into the to crowd around it. But it offers an intriguing dramatic space. A public loop takes visitors past alternative, one that uses its odd geometry to broadcast studios identified by colored panels provoke questions of architectural etiquette— set behind glass, through halls made grand by such as how to fit into (and stand out from) a steel arcades, and eventually to the spectacular context in flux. Its awkward form, though, grows overhang, where—if they dare—they can walk on you, like a geeky classmate who might seem over clear glass discs set in the floor and look strange at first but increasingly smart as you 37 stories down. Throughout, OMA used a simple get to know him. The audacity of the buildings palette of materials to help with navigation, structural gymnastics and its innovative approach wrapping one towers core in Cor-Ten and the to scale and expression could only happen right other in aluminum, and cladding floors in public now in China, a country trying hard to convert spaces with creamy travertine. its cash reserves into global prestige and one where clients are willing to assume high levels of Koolhaas has been attacked by some people risk. CCTV represents a remarkable moment in for working for the mouthpiece of the Chinese Beijings history, one that may already be slippingfeet) if it had been a single tower—nearly 700 Communist Party. But he says, “We are part of away as Chinas radical transformation slows. . a generation of architects that for the first time isfeet taller than the Shanghai World Financial able to work on a global scale, and that meansTower, currently the tallest building in China. Its engaging different kinds of regimes. Our workambiguous scale informs even the nickname is based on a longer engagement, as theselocal residents have given it: da kucha, or “big countries change.”undershorts.” For many years, its radical designalienated the local architectural establishment,which complained that OMA and other foreign Source : http://archrecord.construction.com/projects/firms use China as a laboratory for alien portfolio/2012/11/China-Central-Television-OMA.aspexperiments.While big-name architects usually design onlythe shell and core on high-rise projects, OMA didthe CCTV interiors too. Because of the complexsvast size, the firm approached the interiors asa combination of generic and specific spaces.Entering from a plaza between CCTV and TVCC,visitors are dwarfed by the unstable-lookingforms, then get a visual jolt from the dynamic
  • 12. 11 DesignNewsAn The Wow engineering marvel, CCTV flaunts its technological prowess in its radical geometry and exposedsteel bracing. And its most daring structuralelement is the “overhang,” a nine-to-13-story Factorbridge that makes a right turn in midair as itspans the gap between the two angled towers.Looming 37 stories above the ground, it juts out CCTV Headquarters245 feet from one tower and 220 feet from theother. During construction, the two arms of theoverhang were cantilevered from the towersbefore being connected to form a more stable bridge and complete the building’s continuous structural tube. Making that connection was a dramatic moment during construction and Photo © Philipp e Ruaul required a precise fit. Because the sun warms Photo © Iwan Baan and expands the steel in each part of the building at a different time during the day, construction workers had to complete the task early in the morning when the arms are the same temperature. Visitors today who take the public tour through CCTV get a visceral understanding of the engineering feat when they arrive at the overhang and walk over three clear glass discs set in the deck of the 37th floor. A veritable forest of exposed steel bracing here also helps bring the construction story alive for anyone visiting the space. —C.A.P. On the 37th floor in the overhang, visitors can walk over glass portals and look down to the plaza (left). Exposed steel bracing forms a continuous tube structure that resists the huge forces generated by the building’s cranked and leaning forms. (red:left) . Source : http://archrecord.construction.com/projects/ portfolio/2012/11/China-Central-Television-OMA.asp
  • 13. 12 DiscourseDiscussion Phoenix International Media Center Rendering and photo: Courtesy of BIAD UFoAzerbaijan Cultural Center Photo: © Zaha Hadid Architects Azerbaijan Cultural Center in Baku by Zaha Hadid Architects Zaha Hadid’s signature sexy curves are on fullBig, Bold, and Buzz-Worthy Buildings in 2012 display in the Heydar Aliyev Cultural Center, a fluid form constructed of glass-reinforced concrete that emerges from the folds of the landscape’sAD spotlights a dozen showstopping architectural projects around the world that people natural topography. This major new venue willwill be talking about this year—and beyond. play a pivotal role in the redevelopment of the Azerbaijani capital, housing a conference hall with three auditoriums, a library, and a national| Text by Josephine Minutillo on Architectural Digest museum.
  • 14. 13 DiscourseDiscussionDNB Headquarters in Oslo by MVRDVFor nearly 20 years, the Dutch firm MVRDV hascreated bold, often boldly geometric projects. Itsheadquarters for the Norwegian financial groupDNB in the fast-developing Bjørvika neighborhoodon Oslo’s waterfront is no exception. “The buildingis basically a large box of Legos,” says MVRDVprincipal Winy Maas. “Shuffling individualcomponents of the block slightly allows for morenatural light inside. Removing some elements DNB Headquarters Rendering courtesy of MVRDV Shenzhen Stock Exchange Rendering and photo: © OMAand adding others elsewhere creates fantasticoutside spaces. This play leads to an unexpected, Phoenix International Media Center in At 72 stories and 1,016 feet high, it dwarfs thecomplex structure.” Beijing by BIAD UFo mostly low buildings around it and will be the tallest building in the European Union. Nicknamed For years China has imported big-name the Shard, because of its façade of tapering glass architects (Rem Koolhaas, Zaha Hadid, Steven panels, the tower will contain offices, apartments, Holl) to create out-of-this-world structures. But a hotel and spa, restaurants, shops, and, at its now China is producing its own generation of pointed top, a 15-story public viewing gallery. daring designers. Beijing-based BIAD UFo’s Phoenix International Media Center is giving Shenzhen Stock Exchange by OMA Herzog & de Meuron’s “Bird’s Nest” Olympic stadium a run for its money. The complex OMA, the international firm cofounded by features a pair of buildings with offices and TV- Rem Koolhaas, has stated that its building broadcasting facilities encased in a dramatic for the Shenzhen Stock Exchange has to doughnut-shaped shell of swirling steel. reflect the financial markets, not just physically accommodate a trading floor and offices. As if London Bridge Tower by Renzo Piano buoyed by the same speculative euphoria that Building Workshop drives investors, the building’s rectangular base appears to hover several stories off the ground. Of all the buildings added to the London skyline “The concept of the building is simple but strong,” in the run-up to the Olympics, the most imposing says partner-in-charge David Gianotten. “The is unquestionably Renzo Piano’s London Bridge floating podium of the otherwise generic buildingLONDON BRIDGE TOWER photo: Hayes Davidson and Tower, located on the south bank of the Thames, liberates the ground level, which becomes a newJohn McLean next to the bustling London Bridge transportation hub. public square of Shenzhen.”
  • 15. 14 DiscourseDiscussion The firm even designed the world’s first private a performance hall—is one of its biggest projects spaceport, for Virgin Galactic, which opened to date. The building’s floating, wavelike envelope this past fall in New Mexico. But its expansion (which sits atop a load-bearing shell structure) of the Queen Alia International Airport in Amman and soft, rippling surfaces evoke the forces of the explores a vision of what a 21st-century airport sea, referencing Dalian’s history as an important can be. With a broad canopy reminiscent of port. Bedouin tents, it’s designed to evoke a distinctive sense of place and to provide an enhanced Sliced Porosity Block in Chengdu, China, gateway to the region. The high-tech roof is made by Steven Holl Architects up of photovoltaic canopies that not only shield With offices in Beijing now, as well as New passengers but harness sunlight for renewable York, Steven Holl has quite a lively practiceBarnes foundation Rendering courtesy of the Barnes Foundation energy while allowing for natural ventilation. in China, having completed a string of major projects in recent years. His latest is SlicedBarnes Foundation in Philadelphia by Porosity Block in Chengdu, in the southwesternTod Williams Billie Tsien Architects province of Sichuan. Comprising five towers, theAfter a long legal battle for permission to relocate three-million-square-foot hybrid complex hasAlbert Barnes’s singular painting collection from residential and work spaces, shops, and facilitieshis suburban estate to downtown Philadelphia, for recreation and culture. “It is neither a towerthe Barnes Foundation will open its new home nor a slab or perimeter block,” Holl says. “It’s aon Benjamin Franklin Parkway in May. Designed sculpted mass, where the exoskeleton structureby New York architects Tod Williams and Billie of concrete is sliced according to precise anglesTsien, the museum is clad in a tapestry of gray to allow sunlight to reach surrounding buildings.”and gold limestone and topped by a glowing lightbox. Inside, approximately two dozen rooms QUEEN ALIA Rendering courtesy of Foster + Partnerswill display the foundation’s masterworks byRenoir, Cézanne, Matisse, Picasso, and others. Dalian International Conference CenterThe architects, for their part, note that “the new in Dalian, China, by Coop Himmelb(l)aubuilding brings this extraordinary collection intothe light and cultural pulse of Philadelphia.” Founded in 1968, Viennese firm Coop Himmelb(l) au has taken its unique brand of DeconstructivistQueen Alia International Airport in architecture from Europe to the U.S. and moreAmman, Jordan, by Foster + Partners recently to China. At nearly 1.3 m illion square feet, its Dalian International Conference Center—Airports are nothing new for Foster + Partners. which includes exhibition spaces and DALIAN INT Rendering: © ISOCHROM.com, Vienna
  • 16. 15 DiscourseDiscussionParrish Art Museum in Water Mill, NewYork, by Herzog & de MeuronWhen Herzog & de Meuron’s original design forthe Parrish Art Museum’s new home in Water SLICED POROSITY Photo: © Iwan BaanMill, New York, was scrapped for financialreasons, the Swiss architects came up with asecond, simpler plan. Instead of a cluster ofsmall individual buildings, they created a single,dramatic, 615-foot-long structure with concretewalls and an aluminum roof that draws inspirationfrom the artists’ studios scattered throughout theEast End of Long Island. The architects viewthe redesigned building, which will triple themuseum’s existing gallery space, as a distillation PARRISH ART Rendering: © Herzog & de Meuronof their original plans. “It’s been a long journey,”Pierre de Meuron says of the Parrish. “But it wasimportant for us to be able to make a second Pazhou hotel Rendering courtesy of Aedasproject.” Kamppi Chapel of Silence in Helsinki byPazhou Hotel in Guangzhou by Aedas K2S ArchitectsAs bombastic as any building conceived in the Neither large nor overly expressive, the Kamppipast decade, the Pazhou Hotel, designed by the Chapel of Silence on Helsinki’s busy Narinkkainternational firm Aedas, stacks guest-room floors square is an antidote to the hectic lifestyles ofin two staggered piles atop a nearly 200-foot-high today’s urban dwellers. Designed by the local firmatrium that links exhibition and retail spaces. K2S Architects, the 3,200-square-foot structure Kamppi chapel Rendering © K2S ArchitectsLocated in Guangzhou’s rapidly expanding has a windowless façade of curving spruce planksPazhou district, the new building strives to be and a gently shaped alder interior that embraces .unique among the bold designs that already visitors in the warmth of wood and offering quietoccupy the area, including Zaha Hadid’s Opera sanctuary.House just across the Pearl River. Source : http://www.architecturaldigest.com/
  • 17. 16 DiscourseDiscussion CONCRETE GREEN BUILDINGNov. 2012 edition: One World Trade CenterFact Base—High Strength Concrete Q&A(Continued)Background:One World Trade Center1 (WTC), also known as the Freedom Tower,is the main building of the World Trade Center in New York City’s FinancialDistrict. It is 1776 feet tall at its highest point, the top of a 408-foot antenna,and has 2,600,000 square feet of floor area, including sixty-nine office floors.The owner is the Port Authority of New York and New Jersey (PONY/NJ).The concrete subcontractor is Collavino Construction Co. of Jersey City, NJ.The owner’s drive for a sustainable design was central to the developmentof the tower and resulted in uncommon durability requirements; a challengeto use less than 400 pounds of cement per cubic yard of concrete (whichis less cement than is used in most standard concrete mixes for commonapplications such as basement slabs, garage floors, and sidewalks) as wellas provisions for recycling construction debris and materials, and integrationof renewable energy, day lighting, and the reuse of rainwater.Construction of 1 WTC began in 2006 and is scheduled for completion in Q: What is the history of super-strength concrete?2013. The building’s supporting columns are made of steel and concrete A: High-strength concrete was developed in the 1980s using unique chemicalranging in strength from a high of 14,000 psi to a low of 8,600 psi. The admixtures and mix-proportioning techniques to address performancecolumns on the first forty floors are made from 14,000–12,000-psi concrete challenges with high-rise construction.and the upper floors with 10,000–8,600-psi mix designs. Q: Is 14,000 psi concrete, (being used in 1 WTC) a new concoction?BASF’s Green Sense® service was used to help Eastern Concrete Materials,A U.S. Concrete company, develop the right EF Technology® application for A:The highest strength ready-mixed concrete Eastern Concrete Materialsthe project. EF Technology is a sustainable concrete mix design platform and NYC Materials (U.S. Concrete companies) had produced previous to 1that uses BASF’s Glenium® high-range, water-reducing admixtures. The EF WTC was 10,000 psi. Prior to the construction of 1 WTC, 14,000-psi, ready-Technology mix designed for 1 WTC substantially replaces Portland Cement mixed concrete had been used but never on this scale or for a project withwith supplementary cementitious materials such as fly ash, slag, and silica so many challenging placement, structural, and environmental performancefume, waste byproducts of industrial processes. This resulted in significant requirements. (In fact, the concrete actually reached 18,000 psi at fifty-sixsavings of 30,000 gallons of water, 8,000,000 kWh of energy, 12,000,000 days).pounds of carbon dioxide emissions and 750,000 pounds of fossil fuel.
  • 18. 17DiscourseDiscussion and workable-mix designs are unique, if not It wasn’t until 1999 that 12,000-psi concrete was revolutionary, concoctions. produced in the New York City area for the Trump World Tower. The cured mix yielded an average strength of about 17,000 psi, and, in 2000, the Q: Was the concrete invented for this project won an award from New York City’s building? Concrete Industry Board (CIB) for consistent A: Yes, the entire concrete solution was custom- delivery of high-strength concrete. In 2012, 1 designed for this project and required the use of WTC will also be receiving an award from the the most advanced mix-design and modelling CIB for its role in taking concrete sustainability technology in the industry. The ability to create this and performance to new heights. After the Trump revolutionary mixture lies in Eastern Concrete’s Tower was completed, higher-strength mixes (e.g., EF Technology® using BASF’s Green Sense 8,000-9,000-psi) became more commonplace in Concrete service to produce sustainable concrete the city, but 10,000- and 12,000-psi mixes were with maximum performance. still uncommon. After 2005, the high end of the high-strength market started to open up with Q: Has there been a trend in increased use the projects such as the Beekman Tower, WTCFor example, 1 WTC’s owner, PONY/NJ, was of extra-strong concrete? Tower 7, and other WTC projects. However, 1very interested in sustainable design and required WTC, where construction began in 2007, wasthat the high-strength-concrete mix designs use A: Yes. The trend has been to utilize higher- the first to require 14,000-psi concrete. Evenno more than 400 pounds of cement per cubic strength concrete especially over the last ten after the Trump Tower, more projects started toyard, in effect mandating that uniquely high levels years. Prior to that time, 6,000-psi concrete was specify higher strengths; 9,000, 10,000, 12,000,of supplementary cementitious materials such as considered high strength. When the ready-mix but 10,000 and 12,000 were still not that commonfly ash, slag, and silica fume be used in lieu of producers demonstrated the ability to produce until after 2005.cement. high-strength concrete, engineers and architects began designing buildings accordingly. Today’s chemistry and mixture-optimization1 WTC also had a strict requirement for controlling More specifically, in New York City, one of the know-how also ensure high levels of concretethe heat of hydration, and the workability of the world’s leading high-rise markets, high- strength durability, constructability, and sustainability,concrete had to be maintained for a two-hour concrete applications first appeared in the early providing design professionals and contractorswindow. This is a relatively long time for concrete nineties with designs delivering strengths of with the certain performance they need for theto remain workable. This is especially true for a 7,000–8,000 psi. Mixes with these strengths are hassle-free specification and use of high-strengthhigh-strength concrete that loses its workability relatively commonplace today, but at the time, mixes.because it sets up faster than a low-strength they were unique and expensive because theyconcrete. However, it was necessary due to the used high levels of cement and micro silica, both Q: What makes it so strong?over-the-road and up-the-tower time that the of which are expensive. Today, we achieve theseconcrete spent in transport through New York strengths by using less expensive supplementary A: A unique blend of concrete ingredients,City and up to the tower’s highest floors. So, 1 cementitious materials such as fly ash and slag in including cementitious materials (cement, flyWTC’s high-strength, environmentally friendly, lieu of cement and micro silica. ash, slag, and silica fume), blended aggregates
  • 19. 18 DiscourseDiscussion(coarse stone, and fine sand) and the latest concrete technology developed by U.S. districts in which the supporting members can betechnology in admixtures (chemicals added to Concrete, Aridus® Rapid Drying Concrete. Aridus very large. High-strength concrete also enablesconcrete to impart specific performance and Concrete is a 7,000–8,000-psi mix made with a design of safer structures because key supportingworkability properties) enable the production high percentage of supplementary cementitious members, such as elevator and stair enclosures,of ready-mixed concrete with very low water materials. often relied upon to resist wind, seismic, andcontent, which creates high strength. One of other impact forces, can be designed with anthe key reasons the concrete is high strength is Aridus® Rapid Drying Concrete mix help prevent extra measure of strength (i.e., safety).because the more water that is used in making unsightly, inconvenient, unhealthy, and costlyconcrete, or in placing it and finishing it, the moisture-related floor-covering failures that are Q: What else was unique about theweaker the concrete becomes. Low water an everyday problem no one likes to talk about. concrete delivered for 1 WTC?contents supplemented with chemicals that This problem has become even more prevalentmimic the workability provided by higher levels over the last decade as floor-covering adhesives A: The ready-mixed concrete delivered to 1 WTCof water produce high-strength concrete. have moved from solvent to water-based in order was pumped to the highest elevation to which to eliminate environmentally unfriendly volatile concrete has ever been pumped in the Americas.Q: Is it going to be a trend setter for organic components (VOCs). Even more remarkable, because the mix designfuture concrete concoctions? was so workable, pumping was accomplished Aridus® Rapid Drying Concrete system uses with a single pump that moved the concreteA: Yes. The future of high-rise construction vapor barriers and specially designed, self- from ground to the topmost story instead of to anwill be high-strength, more durable, and more desiccating concrete made with ASTM-listed intermediate station where it would have beensustainable concrete. Most new projects have materials that consume free water to control remixed before being transferred to a second10,000–14,000-psi concrete as part of the the moisture vapor emission rate (MVER), and pump to move it to a higher level.design, as well as a requirement for sustainable internal relative humidity (IRH) of concrete soconstruction driven by the Leadership in Energy that ASTM-tested, manufacturers’-specification-and Environmental Design (LEED®) certification compliant floors can be delivered in 45 days afterthat many public and private owners seek or the building is enclosed and conditioned for 48 hours. Source : http://www.concrete-greenbuilding.comrequire for their projects.Additionally, as a result of US Concrete’s Q: Why was high-strength concreteincreasing experience with high-strength mix chosen for the WTC?designs, we have been able to apply our A: High-strength concrete facilitates the designknowledge of how concrete ingredients interactand the properties they impart to concrete to of smaller, structural-member cross-sectionsdevelop new mixes that solve other construction (e.g., columns and walls) that provide more netproblems. A perfect example of the application usable or rentable floor area because less spaceof knowledge gained from understanding high- is consumed by the structure. This is especiallystrength-mix design technology is the proprietary important in high-rise buildings in high-rent
  • 20. 19ARKdesignProjects OFFICE ONE Location Jakarta, Indonesia Status Under Construction Architect Paul Tan / Cucu Surya Location Jakarta, Indonesia Status Construction Documentation GALLERY WEST Architect Paul Tan / Hema Saepudin
  • 21. 20 InnovationTechnologyEcoSmart Igloo VentlessGlass FireplaceThe EcoSmart Igloo Glass Fireplace is designedwith a futuristic appeal to enhance any contemporarydecor. Designed by Paul Cohen, this EcoSmartFire Designer fireplace offers a unique anddistinctive appeal. It is distinctive and original, INTELLIGENTfeaturing a toughened glass surround that conveysa disappearing effect. A stainless steel bench issuspended between the glass surround, and this LIVINGunique form allows the flame to ‘dance’ in manydirections off the reflective glass panels, generatingambiance and warmth and ensuring a stunningcenter-piece. Created as a portable work of art, the Igloo fireplace is sleek, minimalist lines add an element of chic to residential units, apartments, houses, and commercial premises including offices, bars and restaurants. Fueled by denatured ethanol - an environmentally friendly, renewable energy - the Igloo, like the rest of the Designer Range, is clean and green fireplace. Source : http://www.thefancy.com/ things/125682399823533683/Table-Fireplace-by- MOMA www.vkool-indonesia.com
  • 22. 21Events Ground Breaking Majestic Point Apartment Serpong December 7, 2012 Photo from left : Paul Tan | Halim Chandra | Marcellus Chandra Asiek Widodo | Victor Irawan | Boedi Poerwoko
  • 23. 22 StayInformed ARKdesignNewTeamMembers Meidy Suriansyah, ST Mercu Buana University, Jakarta, Indonesia Bachelor of Architecture Felicia Gunawan, ST, M. BEnv, MUDD University of New South Wales, NSW, Australia Master of Urban Development and Design ARKdesign Architects Wishing you A Merry Christmas and Happy New Year 2013PT. ARKIPURI INTRA NASIONAL ®Taman Kebon Jeruk Blok G1 No. 58, Jakarta Barat 11630p +6221 5869369 / 5869371 / f +6221 5304456 / e jakarta@arkdesign-architects.comwww.arkdesign-architects.com