JEWEL CHANGI AIRPORT
Jewel Changi Airport
Course:
Complex building constructon I
Professor: Dr. Baranyai Balint
Task: Case study I
Students:
Lana Abualfeilat
Dania Zyoon
Batool Abu Zaid
Hande Kabaci
Content
Course:
Complex building constructon I
Professor: Dr. Baranyai Balint
Task:
Case study I
Students:
Lana Abualfeilat
Dania Zyoon
Batool Abu Zaid
Hande Kabaci
Introduction
200+ meters : Span of the roof at its widest point.
3,500 tones : Weight of the domed roof.
10 stories : Total number of floors.
38,500M2 : Site area.
134,000 sq m : total gross floor area
1.7 billion : project cost
Sector: Infrastructure&Airports
Location: Singapore
Completion: September2018
Architect: Safdiearchitects
The unique edifice, created by Safdie Architects, encloses an interactive civic plaza and marketplace that combines landslide airport operations with enormous inside gardens and waterfalls, leisure amenities, retail, restaurants, a hotel, and other spaces for neighborhood engagement. A vibrant market and a luscious park come together to form a brand-new civic hub that is "the heart and soul"ofChangiAirport,according to airport representatives. The new mixed-use complex at Singapore's Jewel Changi Airport aims to provide an unforgettable experience for the 85 million people who will pass through it each year. The building shape, based on the geometry of a torus, meets the programmatic need for various connections in an airport context. An oculusatthecenteroftheglassroofdirects water from a major multistory garden five stories down to the forest-valley garden at ground level. The centerpiece of the program is a 24-hour layered garden attraction that enables guests a spectrum of spatial and interactive experiences. Four gateway gardens emphasize the four cardinal directions of north, south, east, and west, helping visitors find their way around and establishing visual connections to adjacent airport terminals. The glazed facade dematerializes the structure at night, revealing the illuminating garden within.
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A single-layer structural structure that maximized light and transparency in the room was the original "grid shell" concept. In this steel and glass shell, the triangular steel pieces intersect at solid steel nodes. A complex architectural plan that includes a forested valley, gateway gardens, entrances to surrounding a terminals, an internal waterfall, and an oculus led to The Jewel's offset toroidal roof design. The airport rail was intended to run through the project, so the asymmetry of the roof and the displacement of the oculus were designed accordingly. A steel ring beam encircles the central building at the fifth level of the steel grid-shell, flaring up at each of the gateway gardens. This ring beam evenly distributes the push and vertical forces generated by the grid-shell springing into the foundation structure. Traditional steel grid-shells only resist compression and tension forces in the shell's plane in an effort to achieve thinness(withonlymodestbendingcapacity).
This ring beam evenly distributes the push and vertical forces generated by the grid-shell springing into the foundation structure. Traditional steel grid-shells only resist compression and tension forces in the shell's plane in an effort to achieve thinness (with only modest bending capacity). A dinosaur park was proposed by one of the participants. Other architectural designs included structures that resembled a commercial mall in the heart of the airport. This proposal's contrast, with the large dome acting as the airport's new connector and focal point while unifying the terminals in terms of both form andfunction,wasakeydecidingelement. The garden's durability and ageless appeal served as anotherstrongpointinitsfavor.
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Structure Form
Peering into changi’s jewel
The Jewel at Changi Airport goes beyond the standard shell by supporting both membrane forces and out-of-plane forces that distort the shell. The design team considered the forces in the shell and incorporated deeper features at bending points, making the shell expressive of the forces flowing through the various zones, in order to endure this combination of stresses. The inner zone of the toroid, traveling from the interior support columns toward the oculus, acts as a tension cone, suspending the waterfall and oculus and drawing down on the structure. Surface stresses on membranes act in 2 directions: hoop and meridional. These steel sections are the shallowest in the project, with 8inch depths, and therefore present no buckling or bending risks. From the perimeter support to the internal supports, the outer section of the shell mostly consists of compression hoop and meridional membrane forces, with a force distribution resembling that of a dome. The 12 inchdeep components in this area were designedto buckle.The greatestsignificant complexity is seen in the region surrounding the intermediate supports. The integration of tension and compression fields pulling and pushing towards the center is resisted by a compression ring zone. The shell's intermediate column supports in this ring also cause bending out of plane. With very deep parts of up to 750mm in the final formed system, bending demands are maximum
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Peering into changi’s jewel
Triangle panels made of steel and glass were used to divide the shape after the main design had been established.A succession of horizontal hoops are topped with continuous vertical or leaning pieces, or both, to discretize the form as triangles. Aesthetic considerations led to the need for larger steel parts as triangle sizes increased. To gain a better sense of scale and to inspect similar triangular structures in person, the project leaders traveled to Europe and the United States to see grid shells. They did this to better understand how scale and proportions might affectaestheticsanduserexperience.
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