Year: 2014
Type: article
Abstract: The lack of early security arrangements during the constructionperiod can increase the vulnerability of construction project. Tosupport current construction security standards, this paper proposesa bilevel multi-objective model for construction site securityproblem (CSSP). In contrast to prior studies of CSSP, the bilevelrelationship and twofold random phenomenon are considered.Specifically, the upper level programming denotes that projectsecurity officer must first decide which facilities to be securedunder limited funds whilst maximizing the efficiency of theconstruction facilities system and minimizing the countermeasurecost and economic loss. The lower level programming denotes that theattacker will destroy a subset of the facilities to inflict maximumloss of efficiency in the construction facilities system. To dealwith the uncertainties, expected value method and chance constraintmethod are introduced to transform the uncertain model into acalculable one. Thereafter, a stochastic simulation based constraintchecking procedure is designed. Plant Growth Simulation Algorithm(PGSA) is applied to solve this model. Finally, the approach iscarried out in the Longtan hydropower construction project toillustrate the efficiency of the proposed model and algorithm.
Language: English
Field: Decision Sciences
Domain: Social Sciences
Open Access status: bronze
Awards: G1161207856, 大型水利水电工程建设项目集成管理理论与方法研究
OpenAlex ID: W2317853124