And a century later, engineers developed cross-laminated timber, or CLT.

一个世纪后，工程师开发了交叉层压木材，或称 CLT。

Once constructed, CLT and glulam buildings are also more resilient to some natural disasters.

一旦建成，使用 CLT 和胶合板的建筑对一些自然灾害的抵御能力也会更强。

At one-fifth the weight of concrete, building with CLT requires smaller cranes, smaller foundations, and fewer construction workers.

CLT 的重量只有混凝土的五分之一，使用 CLT 的建筑需要用的起重机和地基比较小，需要用的建筑工人比较少。

But perhaps the biggest benefits of CLT and glulam are outside the construction site.

但 CLT 和胶合板最大的好处也许在建筑工地之外。

Despite these advantages, CLT requires vastly more lumber than traditional wooden construction.

尽管有这些优势，CLT 比传统的木制建筑需要更多的木材。

Increasingly, carbon-negative materials such as Cross Laminated Timber (CLT) or glue laminated timber, commonly known as glulam, are being used.

越来越多的碳负材料，如交叉层压木材或胶层压木材，俗称胶合板，正在被使用。

Glulam isn't as versatile as CLT, but its incredible strength along one direction makes it superior for load-bearing beams and columns.

胶合板不像 CLT 那样用途广泛，但沿着同一个方向时，却具有令人难以置信的强度，使它在承重梁和柱子方面更有优势。

And when compared in similar quantities, neither CLT or glulam is as strong as steel or concrete.

而在类似数量的比较中，CLT 或胶合木都没有钢筋或混凝土那么坚固。

This is the largest public  building with the construction of load-bearing structural  components made from CLT and glulam.

这是最大的公共建筑，其承重结构部件由 CLT 和胶合木制成。

As temperatures rise in a CLT building, the material's outer layer will char, insulating the inner layers for up to three hours.

在 CLT 建筑中，随着温度的升高，这种材料的外层会烧焦，从而产生对内层的隔热，长达三个小时之久。

Then, in the case of CLT, the boards are glued together in alternating orientations with each layer set at 90 degrees to its neighbors.

然后制成 CLT，就是把木板以纵横的方向交替粘在一起，每一层设置为 90度与其相邻。

CLT panels are made by fixing several  lumber boards together in alternating layers using super-strong adhesive  and compression techniques.

CLT 面板是通过使用超强粘合剂和压缩技术将几块木材板交替层固定在一起制成的。

It uses CLT – an engineered wood made of several layers that's more fire resistant than raw timber and has a similar strength to concrete.

该建筑使用了正交胶合木，它是一种采用木方叠放胶合成的工程木材，正交胶合木比原木的耐火性能好，强度与混凝土相似。

It'll house over 250 apartments, with most of  the structure made from glulam beams and columns, as well as CLT for the floors.

它将容纳 250 多套公寓，大部分结构由胶合木梁和柱以及地板的 CLT 制成。

CLT can be used for everything from walls  and beams to the entire core of a building, and it's a prominent feature  in all these projects.

CLT 可用于从墙壁和横梁到建筑物的整个核心的所有事物，它是所有这些项目中的一个显着特征。

And a century later, engineers developed cross-laminated timber, or CLT These new wooden materials start out like all other lumber;a freshly cut log is sawed into smooth uniform boards of wood.

一个世纪后，工程师开发了交叉层压木材，或 CLT 这些新的木质材料与所有其他木材一样开始；将新切割的原木锯成光滑均匀的木板。

Due to its light weight, mass timber  can be engineered to be stronger than steel pound-for-pound, and because  of its added seismic resistance, CLT performs impressively in  areas prone to earthquakes.

由于重量轻， 大块木材可以设计成比钢更坚固，而且由于其增加的抗震性， CLT 在地震多发地区的表现令人印象深刻。

Although water can't be entirely removed, CLT  is kiln-dried to bring moisture content down to around 12% - enough to prevent fungal attack and  kill off any bugs that might be lurking inside.

虽然不能完全去除水分，但 CLT 会经过窑干，将水分含量降至 12% 左右——足以防止真菌侵袭并杀死可能潜伏在内部的任何虫子。