东京首座多层木质结构建筑,耐火极限达1小时

案例来源:
http://inhabitat.com
所在国家:
日本 
用途:
  • 办公
  • 商业
结构:

案例详情:

 【介绍】


东京首座多层木质结构建筑,完全符合日本严格的防火规定


为了将木结构体系重新引入日本的城市建筑中,经过十年研究,第一个全部使用木材设计打造的多层建筑建成,并且完全达到了东京严格的防火标准。这个三层的Miyamura兽医诊所由来自东京Atelier OPA工作室的铃木俊彦和来自Buildinglandscape工作室的西泽高雄共同创造。它将传统的梁柱木结构和单层板积材(LVL)相结合,使用尖端材料,可以耐火整整一小时。这完全超过了东京最高标准——至少耐火45分钟。


这种木质单层板积材墙体(LVL)最早由日本LVL协会研发,现得到了日本建筑协会的审批经由Key Tec株式会社加工处理。它的厚度仅为150毫米。LVL不仅充当着承重结构,同时也具有防火性,且无须附加额外的表面涂层。因此,Miyamura兽医诊所完全由木材组成,没有任何的混凝土成分、金属结构部件或其他防火涂料。而至今为止,日本之前的多层结构建筑中都无可避免地使用了这些非木质材料。


这个动物诊坐落于东京中央区,是一种重要的象征:将传统价值重新引入日本设计。的确,LVL不仅保证了稳定可靠的结构、上乘的耐火性,诊所还展示了矗立于首都核心区的多层建筑如何使用真正的木结构,体现了木材的诸多优越性。LVL的隔热隔音性能卓越,成本效益非常高。事实上,使用LVL可以大大降低地基成本。通常而言,因为东京不断的扩张,在填海造地而成的软土地上打地基,费用是十分高昂的。


LVL完全曝露在空气中,证明了它本身就是一种极好的饰面材料,无论内面还是外面。在此意义上,建筑主要的南侧立面、东侧立面和西侧立面,都使用了150毫米厚的LVL结构板材,整合了透气防水层,并额外在LVL表面覆以30毫米厚的板材。同时,除了定制家具之外,建筑的内墙、地板、天花板都用LVL组成,怀旧感十足的木纹营造出舒适惬意的氛围。


Miyamura兽医诊所总建筑面积为250平方米,仅用了8个月便完成了全部施工。


【原文】


Tokyo’s first multistory building made of 100% wood overcomes rigid fire regulation


After a decade of research aimed at reintroducing wood into Japanese urban architecture, the first multi-story building designed entirely with timber materials has finally met Tokyo's strict fire regulations. The 3-level Miyamura Veterinary Clinic, created under the lead of Toshihiko Suzuki from the Tokyo based offices Atelier OPA with Takao Nishizawa from Buildinglandscape, is a combination of a traditional post-and-beam wooden structure and LVL (Laminated Veneer Lumber), a cutting-edge material which can resist fire for an entire hour. This exceeds Tokyo's regulations, which require a minimum resistance of 45 minutes.


Left exposed, the LVL proves itself to be a great finishing material – both inside and outside. In this sense, the main southern façade as well as the eastern and western sides of the building feature 150 mm LVL structural panels (integrated with a breathable water-repellent sheet and covered by an extra 30 mm layer in LVL). Meanwhile, the interior walls, floors and ceilings, in addition to the custom made furniture, all comprised of LVL, provides a cozy atmosphere and evocative texture.


Located in one of the central districts of Tokyo, the Animal Hospital provides a significant model that re-introduces traditional values in Japanese design. Indeed, the LVL not only ensures a good structural capacity and fire resistance, but the clinic also demonstrates how a tall building in capital’s core can actually have a genuine wooden structure and, with that, all the other advantages of timber. Among LVL’s benefits are optimal thermal and acoustic performance and a high degree of cost efficiency. In fact, employing LVL significantly reduces the cost of the foundation, which is usually a considerable expense given the specificity of the Tokyo context―the soft reclaimed land of an always expanding city.


Interestingly, the wooden layered LVL wall (developed in Japan by the Japan LVL association, now approved by the Japanese Ministry of Construction and processed by the Key Tec) is only 150 mm thick. While acting as a load bearing structure, LVL is also fireproof without requiring any extra surface coating. Therefore, Miyamura Veterinary Clinic is comprised of 100 percent wood that has none of the concrete partitions or structural metallic components, or other fire-resistant finishings, that until now were simply unavoidable in multi-level Japanese architecture.


The Miyamura Veterinary Clinic, with its 250 sq.m of total floor area, was completed in just 8 months.

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