日本山王办公室

公司：	studio velocity	类型：	建筑
地区：	日本	标签：	办公室

各种天台下的空间由一个个弧形面形成，天台空间就像被包裹起来一样

一个大弧面形成 "一室一厅"，不同的地方下面有不同的吊顶高度，上面有一个软包的空间，像一个盘子。它既保证了适合密集住宅区的开放式室内空间，又保证了屋顶空间的适度私密性。

Various under-roof spaces created by one curved surface and rooftop space is like wrapped up

One large curved surface creates “one room” with different ceiling heights under different places, and a softly wrapped space, like a dish, above it. It secures an open interior space suitable for dense residential areas and a rooftop space with moderate privacy at the same time.

如何做一个新的弧形面 / 用平面材料做一个弧形面

一般来说，如何制作曲面的步骤如下：

1. 如何用RC制作曲面

2. 多边形结构的曲面制作方法及饰面材料。

3. 弯曲层压木头/建造H弯曲钢筋，使之成为弧形面。

(1)和(3)都有成本昂贵的一面，(2)需要花费大量的时间和精力，而且还会使板块变厚。因此，我们考虑如何利用截面很细很平的平面材料，通过重力和张力生成一个新的曲面。

How to make a new curved surface / make a curved surface with a flat material

Generally, how to make a curved surface is…

1. How to make a curved surface with RC

2. Method of making curved surface with polygonal structure and finishing material

3. Bending laminated wood / Build H Bending steel to make curved surface

(1) and (3) have the side that the cost is expensive, and (2) requires a lot of time and effort, and also thickens the slab. Therefore, we considered how to make a new curved surface by using a flat material with a very thin and flat cross section and generated a curved surface by gravity and tension.

▽屋顶的研究 Roof study

超细柱木材的拉伸材料

为了防止内部空间被结构原则过度控制，张力材料是Hinoki而不是钢丝。这创造了一个与普通木结构没有太大不同的木结构，除了弯曲和非常平坦的横梁，柱子的比例似乎不支持屋顶。

Wood tension material like extra-fine columns

To prevent the interior space from being overly dominated by structural principles, the tension material is Hinoki rather than wire. This has created a wooden structure that is not much different from usual, except for the curved and very flat beams where the proportions of the pillars do not seem to support the roof.

随机的垂直材料，柔和地定义了空间

随机排列的木质张力材料柔和地定义了空间，并与家具的布置和空间的凝聚力平行设计。

Random vertical material, softly defines the space

Randomly arranged wooden tension materials softly define the space and are designed parallel with the arrangement of furniture and cohesiveness of the space.

▽施工过程 Construction process

弧形屋顶与张力材料的应力变化

人在天台上乘坐的次数越多，下层竖柱的张力越小，设计上要达到最大150人（40kg/㎡）才会进行压缩。有效载荷和张力保持建筑物的形状，同时不时地扣除。

Changing stress on curved roof and tension material

The more a person rides on the rooftop, the smaller the tension on the lower vertical pillar, and it is designed so that compression is not applied until a maximum of 150 people (40 kg / ㎡) is reached. The payload and tension keep the shape of the building while deducting from time to time.

▽挠度测试 Deflection test

精密木材与层积材阵列的设计

木材的杨氏模量是通过对许多同类材料进行破坏性检验得到的平均值，或者在工厂进行非常粗略的等级检验（按强度分类）。即使它们的树木和杨氏模量相同，但由于木材是有生命的，所以它的性能和强度都不一样，如果不进行破坏性检验，就无法知道每一块独特的木材的实际强度。因此，木材不同于钢材和RC，无法通过结构计算精确地预测木材的行为，所以设计时要考虑较大的安全系数，这种想法已经从层积材制造厂开始采用。所以，人们认为，如果对所有使用的木材进行无损强度试验，就可以得到与钢架相当相似的精确的单个构件强度和与结构计算一致的行为。在这个计划中，根据进行约1100块薄板的荷载试验所获得的个别数据，设计薄板的排列，制造了12块 "精密木"。

Precision wood / Designing lamina arrays for laminated timber

Young’s modulus of wood is determined by the average value obtained by destructive inspection of many similar materials, or by a very rough grade test in the factory (classification according to strength). Even if they have the same trees and Young’s modulus, since wood is alive, it has different properties and strengths, and the actual wood strength of each unique piece cannot be known without destructive testing. Therefore, unlike steel and RC, it is not possible to precisely predict the behavior of timber by structural calculation, so the design is made with a large safety factor, and that idea has already been adopted from the laminated timber manufacturing plant. So, it was thought that if non-destructive strength tests were conducted on all the wood used, precise individual member strengths that were quite similar to steel frames and behaviors consistent with structural calculations could be obtained. In this plan, 12 “precision wood” pieces were manufactured by designing the arrangement of the lamina based on the individual data obtained by carrying the load test of about 1100 lamina.