BIM-based approach to conduct Life Cycle Cost Analysis of resilient buildings at the conceptual stage
BIM-based approach to conduct Life Cycle Cost Analysis of resilient buildings at the conceptual stage
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基于 BIM 的方法在概念阶段对弹性建筑进行生命周期成本分析
DOI：
10.1016/j.autcon.2020.103480
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发表时间：
2021
影响因子：
10.3
通讯作者：
G. Guest
中科院分区：
文献类型：
--
作者：
Mohammad amin Abrishami rad;Farzad Jalaei;Ashkan Golpour;S. S. H. Varzande;G. Guest
建筑物生命周期内的所有成本都被称为其生命周期成本（LCC）。在建筑物的设计过程中，使用较低的初始成本指数在具有类似性能的其他选项中选择一个选项，可能不会导致在生命周期内经济上最佳的替代方案。因此，今天，建筑设计师和投资者需要一个工具来估计概念设计阶段的生命周期成本，以选择一个经济有效的选项。弹性解决方案通常会导致更高的复杂性和前期成本，并带来额外的环境影响。本研究的目的是支持弹性建筑的设计，在初步设计阶段使用一个健全的LCC方法。该研究旨在将LCC功能直接集成到建筑信息模型（BIM）中，并提高LCC指标的经济相关性和科学稳健性，以实现更好的LCC成本优化。该插件是在BIM工具中开发的，用于使用成本和弹性因素来预测建筑项目的整个过程成本，以帮助设计人员选择具有成本效益和弹性的设计方案。建筑物的寿命周期成本包括其初始成本、维修和保养成本、运营成本和建筑物使用寿命结束时的残值，所有这些都在估算中得到考虑。计算了地震期望破坏和人员伤亡损失，为建筑设计中考虑回弹指标提供了依据。建议的框架设计的住宅建筑的应用程序开发和验证两个设计方案。实际工程的应用表明，方案二的初始费用增加4.6%，年预期故障费用降低35.4%，全寿命周期费用在运行的前45年内降低近10.4%。建筑成本的降低和地震中因故障造成的人员死亡意味着建筑物的复原力将得到提高。使用开发的插件，设计师可以估计LCC的建筑物在早期设计阶段，并设计更具弹性的建筑物，更好的经济性能，在其生命周期根据建议的指标。
All costs within the life cycle of a building are known as its life cycle cost (LCC). In the design process of a building, the use of a lower initial cost index to select an option among others with similar performance may not lead to an economically optimal alternative during the life cycle. Hence, today, building designers and investors require a tool to estimate life cycle cost at the conceptual design stage to select an economically efficient option. Resilient solutions generally lead to a higher level of complexity and upfront costs and carry additional embodied environmental impact as well. This study aims to support the design of resilient buildings using a sound LCC methodology in the preliminary design stage. The research aims to integrate LCC capabilities directly into a Building Information Model (BIM) and increase the economical relevance and scientific robustness of LCC indicators towards better LCC cost optimization. The plugin, which is developed in the BIM tool is represented to use cost and resiliency factors to predict the whole process cost of building projects to assist designers in selecting a cost-efficient and resilient design option. The LCC of a building includes its initial cost, repair and maintenance cost, operating cost and salvage value at the end of the building's useful life, and all of which were considered in the estimation. The earthquake expected failure and human fatality cost are calculated to consider the resiliency index in building design. The application of the proposed framework to design a residential building is developed and validated on two design options. The application of the actual building project illustrates that by increasing the initial cost in the second alternative by 4.6%, its annual expected failure cost is decreased by 35.4%, and its total life-cycle cost is reduced by almost 10.4% within the first 45 years of operation. The reduction in the cost of the building and human fatality due to failure during an earthquake means the building's resilience would be improved. Using the developed plugin, designers could estimate LCC of the buildings at the early design stages and design more resilient buildings with better economic performance in its life cycle according to the proposed indices.