New hybrid construction systems for buildings

人们普遍认为，未来社会将更加城市化，城市人口密度将更高，因为这将使对许多资源的需求降至最低。即使在土地丰富的加拿大，最近的事态发展也体现了这一趋势。例如，自2009年起，它被允许在不列颠哥伦比亚省建造5层和6层的木质轻型框架住宅楼，而不是遵守传统的4层限制。然而，在技术和公众圈子里，对于是否存在有效和可靠地做到这一点的知识，仍然有很大的担忧。拟议的研究解决了与不列颠哥伦比亚省现在允许的建筑(并提议在加拿大其他地方允许的建筑)的设计、制造和建造相关的工程知识空白的关键要素，并支持开发更高的混合结构，其中木材是多种结构材料之一。重点是使用传统和非传统的以木材为基础的材料和其他材料，以最大限度地利用各自的能力。拟聘用和培训7名研究生(3名硕士和4名博士)，从事与至少5层高的建筑物的混合建筑系统有关的项目。计划开发的实例涉及：(1)用于中等高层建筑的预制系统(S)，其中大型墙和楼板基础结构像机械部件一样夹在一起；(2)多功能施工界面，满足从消防安全到控制结构损坏、到建筑物居住者的舒适度和能源效率等各种性能要求；以及(3)与结构钢框架结合使用的轻质大跨度低轮廓大体积木地板，以创造超高层建筑。每项活动都将涉及加拿大境内和境外的关系网。设想的可交付成果包括研究论文和报告；设计规范修订；设计实践笔记；通过创造产品创意支持行业；以及培训新的专业人员。

It is widely acknowledged that future societies will be more urbanised with higher population densities in cities, because that minimizes demand on many resources. Even in land-rich Canada, recent developments exemplify the trend. For example, as of 2009 it is allowed to construct 5- and 6-storey timber light-frame residential buildings in British Columbia instead of respecting the traditional 4-storey limit. However, there remains much concern in technical and public circles about whether the knowledge exists to do this efficiently and reliably. The proposed research addresses key elements of the engineering knowledge gaps associated with design, manufacture and construct of buildings like those now allowed in British Columbia (and proposed to be allowed elsewhere in Canada), and supports development of even taller hybrid structures where timber is one of multiple structural materials. Emphasis is on employing traditional and non-traditional timber-based materials, and other materials, in ways that exploit capabilities of each to maximum advantage. It is proposed to engage and train seven graduate students (3 MSc and 4 PhD) in projects related to hybrid construction systems of buildings at least 5 storeys tall. Examples of what is intended relate to development of: (1) prefabricated system(s) for mid-rise buildings wherein large wall and floor substructures clip together like Mechano© parts; (2) multifunctional construction interfaces that address performance requirements ranging from fire safety to containment of structural damage, to comfort of building occupants and energy efficiency; and (3) lightweight long-span and low-profile massive timber floors for use in conjunction with structural steel frameworks to create super tall buildings. Each activity will involve networking in and beyond Canada. Envisioned deliverables are research papers and reports; design code revisions; design practice notes; support of industry through creation of product ideas; and training new professionals.