以竹為基礎的建筑在巴厘島很常見，但即便如此，Ibuku 的 Arc 體育館也是一項與可持續(xù)建筑世界中任何其他建筑不同的壯舉！該結構是為一所私立學校校園設計的，該校園擁有一個完全由竹子制成的復雜雙曲線屋頂。綠色學校在可持續(xù)教育方面有 12 年的突破和開拓歷史，Arc 是同類學校中的第一個！

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竹結構由一系列交叉的 14 米高的竹拱構成，跨度為 19 米，由抗碎屑網(wǎng)格殼相互連接，網(wǎng)格殼從兩個相反方向的彎曲中獲得強度。它采用大自然最偉大的策略之一，用最少的立柱創(chuàng)造大空間。例如，在人類的胸腔中，有一系列受壓的肋骨由肌肉和皮膚的張力彈性層固定在適當?shù)奈恢谩＿@為肺部創(chuàng)造了一個薄而堅固的包裹。同樣在 Arc 中，在壓縮中工作的拱門由張緊的防彈網(wǎng)格殼固定到位。這些網(wǎng)格殼的領域似乎懸垂在高聳在頭頂上的難以置信的薄拱門之間的空間，盡管網(wǎng)格殼似乎懸掛在拱門上，但實際上它們將它們支撐起來。

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其獨特的造型形成了一個保護屋頂，為一個建筑面積為760平方米的多功能運動場提供了庇護。輕型建筑的幾何形狀使結構處于平衡狀態(tài)，這意味著對結構材料的需求顯著減少。這也意味著前所未有的內部體積，具有不可思議的薄結構，并且沒有任何分散注意力的桁架。Arc 確實是一個宏偉的、最小的、有機的結構，它表明我們可以夢想遠大，產(chǎn)生影響，并在不影響我們的目標的情況下努力在更大范圍內實現(xiàn)更可持續(xù)的發(fā)展。

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“The Arc 的概念結構是前所未有的，”Ibuku 項目建筑師 Rowland Sauls 聲稱。“著手一項以前從未執(zhí)行過的設計需要一些勇敢和樂觀。我們有足夠的創(chuàng)造力和毅力來研究和開發(fā)項目成功所需的答案?！?/span>

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“網(wǎng)格殼使用形狀剛度來形成屋頂圍護結構，并為拋物線拱門提供抗屈曲能力，”Atelier One 主管尼爾·托馬斯說?！斑@兩個系統(tǒng)共同創(chuàng)造了一個獨特而高效的結構，”他補充說，“能夠在負載下彎曲，使結構重新分配重量，減輕拱門上的局部力?！?/span>

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英文版

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Bamboo-based architecture is common in Bali, but even then the Arc gymnasium by Ibuku is a feat unlike any other in the world of sustainable architecture! The structure has been designed for a private school campus featuring a complex double-curved roof made entirely from bamboo. The Green School has a 12-year history of pushing boundaries and pioneering for sustainable education and Arc is the first of its kind!

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The bamboo structure is built from a series of intersecting 14-meter tall bamboo arches spanning 19 meters, interconnected by anticlastic gridshells which derive their strength from curving in two opposite directions. It employs one of nature’s greatest strategies for creating large spaces with minimal founding pillars. For example, in a human ribcage, there are a series of ribs working in compression are held in place by a tensioned flexible layer of muscle and skin. This creates a thin but strong encasement for the lungs. Similarly in Arc, arches working in compression are held in place by tensioned anticlastic gridshells. These fields of gridshells appear to drape across the spaces between impossibly thin arches soaring overhead and although the gridshells appear to hang from the arches, they actually hold them up.

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Its unique shape forms a protective roof sheltering a multipurpose sports court with a floor area of 760 square meters. The lightweight building’s geometry brings the structure into a state of equilibrium, which means a dramatically decreased necessity for structural material. This also means an unprecedented inner volume with an impossibly thin structure and without any distracting trusses. The Arc is truly a magnificent, minimal, and organic structure that shows we can dream big, make an impact, and strive to be more sustainable on a grand scale without compromising on our purpose.

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“The concept structure for The Arc is totally unprecedented,” claimed Ibuku project architect Rowland Sauls. “Embarking on a design never before executed required some bravery and optimism. We were creative and stubborn enough to research and develop the answers needed for the success of the project.”

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“The gridshells use shape stiffness to form the roof enclosure and provide buckling resistance to the parabolic arches,” said Atelier One director, Neil Thomas. “The two systems together create a unique and highly efficient structure,” he added, “able to flex under load allowing the structure to redistribute weight, easing localised forces on the arches.”

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