Robust optimization model for traceable procurement of construction materials considering contract claims

IF 9.6 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Kaiyue Zhang , Jing Zhou , Yan Ning , Shang Gao
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Abstract

In claim contracts, project owners and contractors set negotiated prices and exemption amounts for price adjustments to deal with the uncertainty of material prices, which is often overlooked in the optimization of procurement strategies. Therefore, considering contract claims, this paper constructs an optimization model for contractors’ traceable procurement strategies to address the multi-stage, multi-source procurement issue. A robust optimization model is used to consider the uncertainty of procurement prices, and the robust parameter is set to flexibly control the robustness of the solutions. The results indicate that contractors with different risk attitudes have the same preference for the exemption amount, but they exhibit varying sensitivities to the exemption amount and also have different preferences regarding the negotiated price. Furthermore, the study reveals that negotiated price exerts an anchoring effect on the procurement strategies of contractors.
考虑合同索赔的建筑材料可追溯采购的稳健优化模型
在索赔合同中,项目业主和承包商会设定协商价格和价格调整免责金额,以应对材料价格的不确定性,而这在采购策略优化中往往被忽视。因此,考虑到合同索赔,本文构建了承包商可追溯采购策略的优化模型,以解决多阶段、多来源的采购问题。采用稳健优化模型来考虑采购价格的不确定性,并设置稳健参数来灵活控制解决方案的稳健性。结果表明,不同风险态度的承包商对免责金额的偏好相同,但对免责金额的敏感度不同,对谈判价格的偏好也不同。此外,研究还表明,谈判价格对承包商的采购战略具有锚定效应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Automation in Construction
Automation in Construction 工程技术-工程:土木
CiteScore
19.20
自引率
16.50%
发文量
563
审稿时长
8.5 months
期刊介绍: Automation in Construction is an international journal that focuses on publishing original research papers related to the use of Information Technologies in various aspects of the construction industry. The journal covers topics such as design, engineering, construction technologies, and the maintenance and management of constructed facilities. The scope of Automation in Construction is extensive and covers all stages of the construction life cycle. This includes initial planning and design, construction of the facility, operation and maintenance, as well as the eventual dismantling and recycling of buildings and engineering structures.
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