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Fostering lightweight and eco-friendly Timber-UHPC structures**

培育轻质且环保的UHPC木材结构**

基本信息

批准号：
536951-2018
负责人：
Sorelli, Luca
金额：
$ 1.81万
依托单位：
Université Laval
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2018
资助国家：
加拿大
起止时间：
2018-01-01 至 2019-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=665629
关键词：
Fostering lightweight eco friendly Timber

项目摘要

Ultra-High Performance Concretes (UHPC) is a new class of cement composites that are emerging worldwide thanks to their outstanding mechanical properties. The use of UHPC in Timber-Concrete Composite (TCC) is today unexplored appears particularly promising as the UHPC slab is endowed with high Young modulus , which increases the structural stiffness, and compressive strength, which increases maximum load bearing capacity of the structures. Moreover, the reduced thickness of the UHPC slab allows further reducing the floor thickness with important market gain. Finally, with respect to a conventional concrete floor, such timber-UHPC floor with reduced thickness, material saving and less impact to the global CO2 emission. ****This NSERC Engage research aims at developing new solutions for lightweight and eco-friendly floor system made of UHPC and timber, which can take fully advantage of the high compressive strength of and the high E-modulus of UHPC slabs. ****In the current context of fight to climate changes and strong growth of the metropolitan areas, the development of optimized lightweight and eco-friendly floors for multi-storey buildings is critical for the future of Canada. Considering the residential floors of new multi-storey building in Canada, the potential market for timber-UHPC is outstanding. This research will foster the optimization of timber-UHPC floor towards sustainable composite structure for future multi-storey buildings in Canada.****

超高性能混凝土（UHPC）是一种新型的水泥复合材料，由于其优异的力学性能而在世界范围内兴起。UHPC在木材-混凝土复合材料（TCC）中的应用目前尚未开发，这似乎特别有前途，因为UHPC板具有高杨氏模量，这增加了结构刚度和抗压强度，这增加了结构的最大承载能力。此外，UHPC板的厚度减小允许进一步减小地板厚度，从而获得重要的市场收益。最后，相对于传统的混凝土地板，这种木材-UHPC地板具有减小的厚度、节省的材料和对全球CO2排放的较小影响。* NSERC Engage的这项研究旨在开发由UHPC和木材制成的轻质环保地板系统的新解决方案，该系统可以充分利用UHPC板的高抗压强度和高弹性模量。* 在当前应对气候变化和大都市地区强劲增长的背景下，为多层建筑开发优化的轻质环保地板对加拿大的未来至关重要。考虑到加拿大新多层建筑的住宅楼层，木材UHPC的潜在市场是突出的。这项研究将促进木材-UHPC地板的优化，使其成为加拿大未来多层建筑的可持续复合结构。