使用不同材料和结构形式的高层建筑中内含碳和建筑成本的可持续性分析

Q2 Engineering
V. Gan, C. Chan, K. T. Tse, Jack C. P. Cheng, Irene Lo
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引用次数: 9

摘要

摘要了解材料选择和结构形式对高层建筑内含碳和建筑成本的影响,对于提高建筑设计的可持续性至关重要。本研究的目的是调查建筑材料和结构形式的选择对高层建筑内含碳和建筑成本的影响。结果表明,使用结构钢的高层建筑的建筑成本最高,为4575 港元/平方米,碳含量最高,为760 kg CO2-e/m2。在高层建筑中使用钢筋混凝土可减少30%的内含碳(达到4194 港元/平方米)和建筑成本的7%(至537 kg CO2-e/m2)。使用复合材料的高层建筑的建筑成本最低(3740 港元/平方米),但产生的含碳量略高(557 kg CO2-e/m2)。对于特定的结构形式,建筑成本和内含碳作为建筑高度的函数,呈凹向上的趋势,这表明每个结构都有一个成本和碳含量相对较低的建议高度,例如,复合芯-外伸支腿结构的50–70层,约3700–3900 HK$/m2。同样,复合管中筒结构的建议高度为60-80层,为3900-4100 HK$/m2,而支撑管结构的建议高度为60–80层,为3500–3600 港元/平方米。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sustainability analyses of embodied carbon and construction cost in high-rise buildings using different materials and structural forms
ABSTRACT Understanding the impact of material choices and structural forms on the embodied carbon and construction cost in high-rise buildings is important to improve building designs with regard to sustainability. The objective of this study is to investigate the impact of the choice of construction materials and structural forms on the embodied carbon and construction cost of high-rise buildings. The results show that high-rise buildings using structural steel have the highest construction cost at 4575 HK$/m2 and the most embodied carbon at 760 kg CO2-e/m2, respectively. Using reinforced concrete for high-rise buildings reduces 30% of the embodied carbon (to 4194 HK$/m2) and 7% of the construction cost (to 537 kg CO2-e/m2). High-rise buildings using composite materials have the lowest construction cost (3740 HK$/m2), but produce slightly more embodied carbon (557 kg CO2-e/m2) than concrete buildings. For a specific structural form, the construction cost and the embodied carbon as a function of the building height follow concave upward trends, indicating that each structure has a suggested height with relatively lower cost and carbon content, e.g. 50–70 storeys for composite core-outrigger structure at around 3700–3900 HK$/m2. Similarly, the suggested height for composite tube-in-tube structure is 60–80 storeys at 3900–4100 HK$/m2, whereas braced-tube structure has a suggested height of 60–80 storeys at 3500–3600 HK$/m2.
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来源期刊
Transactions Hong Kong Institution of Engineers
Transactions Hong Kong Institution of Engineers Engineering-Engineering (all)
CiteScore
2.70
自引率
0.00%
发文量
22
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