Minimising energy in construction

最大限度地减少建筑能耗

• 批准号: EP/P033679/2
• 负责人: John Orr
• 金额: $ 23.2万
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FP033679%2F2
• 关键词: Minimising; energy; construction

The built environment is estimated to account for around 50% of all carbon emissions. About 10% of global GDP is generated by the construction industry, which creates and maintains our built environment. Recent success in reducing operational energy consumption and the introduction of strict targets for near-zero energy buildings mean that the embodied energy will soon approach 100% of total energy consumption.The importance of this fundamental shift in focus is highlighted by the analysis of recently constructed steel and concrete buildings, in which it was demonstrated that embodied energy wastage in the order of 50% is common. Inefficient over-design of buildings and infrastructure must be tackled to minimise embodied energy demand and to meet future energy efficiency targets.The UK Government has set out its ambition to achieve 50% lower emissions, 33% lower costs, and 50% faster delivery in construction by 2025. These ambitious targets must be met at the same time as the global construction market is expected to grow in value by over 70%. Achieving growth and minimising embodied energy will require a step change in procurement, design and construction that puts embodied energy at the centre of a holistic whole-life cycle design process.The global population is expected to grow to 9.7billion by 2050, with 67% of us living in cities. China alone will add 350 million people to its urban population by 2030. Yet Europe's and Japan's population will both be smaller in 2060 than they are today, and the total population of China is expected to fall by 400million between 2030 and 2100. Depopulation of cities will occur alongside reductions in total populations for some countries. This presents a complex problem for the design of the built environment in which buildings and infrastructure constructed today are expected to be in use for 60-120 years: providing structures that are resilient, healthy, and productive in the medium term, but demountable and potentially reusable in the long term. The targeted feasibility studies of this proposal will be vital in ensuring that this can be achieved.We have identified a series of areas where feasibility studies are essential to define research needs to enable significant energy savings in the construction industry before 2025. We will identify a series of 'low-hanging fruit' research areas, in priority order, for embodied energy savings, and work with our industrial partners to develop feasible pathways to implementation in the construction industry.

据估计，建筑环境的碳排放量约占所有碳排放量的50%。全球约10%的GDP是由建筑业产生的，建筑业创造和维护了我们的建筑环境。最近在降低运营能耗方面取得的成功以及近零能耗建筑的严格目标的引入意味着隐含能源将很快接近总能耗的100%。通过对最近建造的钢结构和混凝土建筑的分析，强调了这种根本性转变的重要性，其中表明，隐含能源浪费在50%左右是常见的。建筑物和基础设施的低效过度设计必须得到解决，以最大限度地减少隐含能源需求，并实现未来的能源效率目标。英国政府制定了到2025年实现减排50%、成本降低33%和交付速度加快50%的目标。这些雄心勃勃的目标必须在全球建筑市场价值预计增长70%以上的同时实现。实现增长和最大限度地减少嵌入式能源将需要在采购、设计和施工方面做出重大改变，将嵌入式能源置于整体全生命周期设计过程的中心。到2050年，全球人口预计将增长至97亿，其中67%居住在城市。到2030年，仅中国的城市人口就将增加3.5亿。然而，到2060年，欧洲和日本的人口都将比现在少，而中国的总人口预计将在2030年至2100年间减少4亿。在一些国家，城市人口减少的同时，总人口也会减少。这为建筑环境的设计提出了一个复杂的问题，其中今天建造的建筑物和基础设施预计将使用60-120年：提供中期弹性，健康和生产力的结构，但长期可拆卸并可重复使用。我们已确定一系列范畴，需要进行可行性研究，以确定研究需要，使建造业在2025年前可大幅节省能源。我们将确定一系列“低挂水果”的研究领域，按优先顺序，为体现节能，并与我们的工业伙伴合作，制定可行的途径，在建筑业实施。

项目成果

The Lightest Beam Method - A methodology to find ultimate steel savings and reduce embodied carbon in steel framed buildings

最轻梁法 - 一种找到最终节省钢材并减少钢框架建筑中隐含碳的方法

• DOI: 10.1016/j.istruc.2020.06.015
• 发表时间: 2020
• 期刊: Structures
• 影响因子: 4.1
• 作者: Drewniok M

Setting carbon targets: An introduction to the proposed scors rating scheme

设定碳目标：拟议的分数评级方案简介

• 发表时间: 2020
• 期刊: Structures
• 影响因子: 4.1
• 作者: Arnold, W

An Analytical Failure Envelope for the Design of Textile Reinforced Concrete Shells

纺织钢筋混凝土壳设计的分析破坏包络线

• DOI: 10.1016/j.istruc.2018.06.001
• 发表时间: 2018
• 期刊: Structures
• 影响因子: 4.1
• 作者: Hawkins W

A design methodology to reduce the embodied carbon of concrete buildings using thin-shell floors

一种减少使用薄壳楼板的混凝土建筑隐含碳的设计方法

• DOI: 10.1016/j.engstruct.2020.110195
• 发表时间: 2020
• 期刊: Engineering Structures
• 影响因子: 5.5
• 作者: Hawkins W

Molecular dynamics investigation on the interfacial shear creep between carbon fiber and epoxy matrix

• DOI: 10.1016/j.apsusc.2020.148013
• 发表时间: 2021-01-30
• 期刊: APPLIED SURFACE SCIENCE
• 影响因子: 6.7
• 作者: Tam, Lik-ho;Jiang, Jinqiao;Wu, Chao
• 通讯作者: Wu, Chao