大型木结构办公建筑

发布于：2020-10-27 09:43:27 来自：建筑结构/混凝土结构 [复制转发]

Catalyst建筑是华盛顿州第一个用交叉层压木材建造的办公楼。它正在争取获得国际未来生活研究所(International Living Future Institute)的零能耗和零碳认证，使其成为北美最大的同时满足这两个标准的建筑之一。

该建筑打算成为一个全面集成的生活实验室，为新的可持续性技术、材料、施工技术、操作实践和设计。

The Catalyst Building is the first office building in Washington State constructed out of cross-laminated timber. It is pursuing Zero Energy and Zero Carbon certification by the International Living Future Institute, making it one of the largest buildings in North America to meet both standards. The building intends to be a fully integrated living laboratory for new sustainability technologies, materials, construction techniques, operational practices, and design.

位于华盛顿州斯波坎市，占地16.5万平方公里。5层的Catalyst建筑建在一个不规则的场地上，该场地未得到充分利用，需要重建。

该建筑通过Gateway桥与大学区相连。Gateway桥是一座人行天桥，将两个大学的核心区域连接在一起。作为一个工业和学术可以交叉创新和合作的地方，建筑需要灵活的办公和学术多功能使用空间。地板设计简单，但跨度大，以满足项目要求。

Located in Spokane, Washington, the 165,000 sq. ft., 5-storey Catalyst Building is built on an irregular site, which was underutilized and in need of revitalization. The building is connected to the University District by way of the Gateway Bridge – a pedestrian bridge that brings together the two university core areas. Intended as a place where industry and academia can intersect to innovate and collaborate, the building required flexible spaces for both office and academic multi-functional uses. The floor plates were designed to be simple but long span to meet the program requirements.

项目团队的目标是设计和建造一个大型木结构建筑，其性能可以超过类似的钢和混凝土建筑，同时展示CLT在美学、建筑效率和环境影响方面的好处。

这一目标是通过可持续的MEP设计、智能建筑管理系统以及使用超过4000立方米的CLT和glulam产品实现的，这些产品储存了3713吨二氧化碳。在建筑中使用的CLT面板来自当地的工作森林，使用良好的生态实践来收获，并在离基地15英里的地方制造。

The ambition of the project team was to design and construct a mass timber building that could exceed the performance of a comparable steel and concrete building while showcasing the benefits of CLT concerning aesthetics, building efficiency, and environmental impact. This goal was realized through sustainable MEP design, smart building management systems, and the use of over 4,000 cubic meters of both CLT and glulam products, which have stored 3,713 metric tons of carbon dioxide. The CLT panels used in the building were sourced from local working forests, harvested using sound ecological practices, and manufactured 15 miles from the site.

由华盛顿大学碳领导论坛撰写的建筑生命周期评估(LCA)得出结论，木材的碳储存几乎抵消了建筑所带来的碳影响。

通过关注低碳材料，围绕建筑环境可持续性的讨论可以从能源使用扩展到建筑生命周期的总碳排放。

该项目证明了可持续发展成果和新的施工方法可以与更传统的可负担性、运营效率和租户舒适度等指标共存。

A Life Cycle Assessment (LCA) of the building, authored by the Carbon Leadership Forum at the University of Washington, concluded that the carbon storage of the timber nearly offsets the embodied carbon impact of construction. By focusing on lower-carbon materials, the conversation around sustainability in the built environment can broaden from only energy usage to total carbon emissions over a building’s lifecycle. This project proves that sustainable development outcomes and new construction methods can coexist with more traditional metrics for affordability, operational efficiency, and tenant comfort.

“被动优先”策略包括减少用水的雨水收集，采用被动房屋标准的围护结构设计，以及使用耐用材料来达到75年的设计寿命。

该建筑的气密性测试结果非常出色，催化剂的建筑围护结构的气密性是被动式房屋标准要求的三倍。催化剂也通过一个叫做生态区的模型从一个集中的能源工厂中提取。

“Passive-first” strategies include rainwater capture reducing water use, envelope design using Passive House standards, and durable material application to achieve a design life expectancy of 75 years. The building’s airtightness test results were outstanding with Catalyst’s building envelope performing at three times the airtightness required for the Passive House Standard. The Catalyst also draws from a centralized energy plant through a model called an eco-district.