Finite Element Models and Supporting Data Used to Assess the Embodied Carbon Premium for Vanity Height

The aim of this research is to demonstrate the detrimental influence of spires and, by extension, vanity height on the embodied carbon of structural systems for tall buildings. This influence is evaluated using three tall building scenarios of varying heights (50, 70, and 90 storeys). Two finite element models, with and without spires, are parametrically designed for each scenario. All the modelled structural systems comprise a reinforced concrete tube-in-tube lateral load resisting system. A hybrid life cycle inventory analysis approach is used to quantify the embodied carbon of spires as well as the resulting increase in the embodied carbon of structural systems.

本研究的宗旨在于阐释尖塔对高层建筑结构系统实体碳的影响，以及由此延伸出的虚荣高度所造成的负面影响。该影响通过三种不同高度（分别为50层、70层和90层）的高层建筑场景进行评估。针对每个场景，均构建了带有和不带有尖塔的两种有限元模型，并进行了参数化设计。所有模拟的结构系统均采用钢筋混凝土套筒式抗侧力体系。采用混合生命周期库存分析方法，对尖塔的实体碳以及由此导致的结构系统实体碳的增加量进行量化。