由專筑網江鵬，小R編譯

加拿大Icon Architects事務所發布了其位于多倫多的31層塔樓設計方案，在建成后，該樓將成為北美最高的大體量木結構建筑。

該建筑用地位于多倫多市中心，靠近多倫多大學。如果得到市政府的批準，該建筑將達到90米高，成為北美最高的大型木結構建筑。

根據其他項目設計情況，包括由Schmidt Hammer Lassen設計的瑞士100米高的塔，多倫多塔可能是世界上最高的大型木結構建筑。

據Icon Architects事務所表示，這座住宅大樓將使用交叉層壓木材（CLT）作為大樓地板和部分墻壁的材料。

Canadian studio Icon Architects has released its design for a 31-storey tower in Toronto that, if completed, will be the tallest mass-timber structure in North America.
The structure has been proposed for downtown Toronto, near the University of Toronto. If approved by the city, the structure will be 90 metres tall, making it the tallest mass-timber structure in North America.
Depending on the status of other designs – including a 100-metre-tall tower designed by Schmidt Hammer Lassen planned for Switzerland –  the Toronto tower could be the tallest mass-timber structure in the world.
Planned as a residential tower, the studio will use cross-laminated timber (CLT) as the material for the tower's floors and for some of its walls, according to Icon Architects.


▲ Icon Architects在多倫多發布了一棟90米高木構塔樓的設計方案
Icon Architects has released plans for a 90-metre-tall mass-timber tower in Toronto

Icon Architects負責人Reza Eslami說:“我們目前正在與一些制造商進行談判，但無論如何，他們都是加拿大人。還沒有確定具體的東西，沒有其他意思�！�

Eslami說：“根據客戶的愿望，團隊將創建一個大規模木材項目，使結構可持續，盡管施工方法比混凝土更昂貴�！�

他說：“根據成本估算，我們所追求的結構相較傳統的混凝土結構更為昂貴，但作為加拿大最高的木塔，以及迄今為止世界上最高的木塔樓，有著得天獨厚的魅力�！�

然而，該結構目前不符合安大略省的建筑規范。7月初，多倫多市議會通過了一項決議，允許在多倫多建造12層的大型木結構建筑。

Eslami說：“截至本月初，一座12層的木結構已被納入安大略省建筑規范，但我們離最高標準還很遠，因此我們正在與一位杰出的建筑規范顧問密切合作，以制定建筑規范委員會可以接受的‘替代解決方案’�！�
據Eslami介紹，大木塔的設計靈感來自木板游戲Jenga。

"We are currently in talks with a number of manufacturers but in any case, they would be Canadian," said Icon Architects principal Reza Eslami. "Nothing concrete yet, no pun intended!"
Eslami said that the decision to create a mass-timber project came from the clients' desire to make the structure sustainable, despite the construction method being more expensive than concrete.
"Running the cost estimates, the structure that we are after has proved to be more expensive than the conventional concrete structure, but then being the tallest timber tower in Canada and (so far) in the world had its winning charm," he said.
However, the structure currently is not in line with the building code in Ontario. In early July, a decision to allow 12-storey mass-timber buildings to be built in Toronto was passed by the city council.
"As of the beginning of this month, a 12-storey timber structure has found its way into the Ontario Building Code, but we are still far off from that maximum, so we are working very closely with a magnificent building code consultant to prepare the 'alternative solution' that would be acceptable by the Building Code Committee," said Eslami.
The design of the mass-timber tower was inspired by the woodblock game Jenga, according to Eslami.


▲ 這座建筑的下方街道層是遺產建筑
The building will leave the heritage buildings at streetlevel

圖片顯示，在新街區下面，一排愛德華七世時期的磚砌建筑外豎立著一條多彩面板。愛德華七世時期的建筑是遺產，必須保留下來。

根據Eslami的說法，面板將采用BIPV面板，盡管這只是前瞻性的策略。他補充說，到目前為止，這種規模的建筑所需的木覆層維護費用過于昂貴。

他繼續說道：“另一種選擇是使用帶有假木紋的金屬板，這種材料在低層建筑中廣泛使用，但那是假的，不過我們不想作假�！�

項目完成之后，建筑將包含有23萬平方英尺(21368平方米)的住宅空間，這是 494個住宅單元。

目前，北美最高的大木結構建筑是明尼蘇達州Michael Green設計的一座七層建筑。

目前世界上最高的木材建筑是由挪威Voll Arkitekter設計的Mjøstårnet塔樓，其高度為85.4米，完全由木材制成。

大量木材在北美持續流行。2021年，紐約市批準建造高達25.9米的大型木構建筑。

Images show a multi-colour siding that rises up from a row of Edwardian brick buildings beneath the new block. The Edwardian buildings have heritage status and must remain in place.
According to Eslami, the siding will be BIPV panels, though this is only prospective. He added that as of now, the maintenance required for wood cladding for a building of this size would be too costly.
"An alternative would have been to use metal panels with fake wood grains on them, that are widely used in low-rise buildings, but then it would be fake – we didn’t want to be fake," he continued.
If completed, the structure will have 230,000 square feet (21,368 square metres) of residential space spread across the public spaces and 494 residential units.
Currently, the tallest mass-timber structure in North America is a seven-storey structure by Michael Green in Minnesota.
The tallest mass-timber building in the world is currently Mjøstårnet by Voll Arkitekter in Brumunddal, Norway, an 85.4-metre-high tower with a structure made completely from timber products.
Mass timber continues to grow in popularity across North America. In 2021, New York City approved the construction of mass-timber structures up to 25.9 metres tall.