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）是一类新的水泥复合材料，由于其出色的机械性能，它们在全球范围内逐渐出现。如今，在木材混凝土复合材料（TCC）中使用UHPC似乎特别有前途，因为UHPC平板赋予了高年轻模量，从而增加了结构性刚度和抗压强度，从而增加了结构的最大负载轴承能力。此外，UHPC平板的厚度减小，可以通过重要的市场增益进一步降低地板厚度。最后，关于传统的混凝土地板，这种木地板的厚度减小，材料节省减少，对全球二氧化碳排放的影响较小。 ****这项NSERC参与者的研究旨在为UHPC和木材制成的轻质和环保地板系统开发新的解决方案，该系统可以充分利用UHPC板的高抗性强度和高e-Modulus。 ****在当前争取气候变化和大都市地区强劲增长的背景下，开发了对多层建筑的优化轻巧和环保地板的发展对于加拿大的未来至关重要。考虑到加拿大新的多层建筑的住宅楼层，木材UHPC的潜在市场非常出色。这项研究将促进对加拿大未来多层建筑的可持续复合结构的优化。****