Research on Hoisting Risk of Prefabricated Buildings Based on Unascertained Measurement Method
In order to realize the scientific evaluation of the hoisting risk of prefabricated buildings,the quantitative evaluation method of prefabricated buildings is proposed based on the unascertained measurement method of AHP-entropy combination empowerment.The risk quantification evaluation index system has been established following the principle of"4M1E",the risk factors were preliminarily sorted out,and the risk factors of prefabricated building hoisting were identified from five as-pects:"human,material,technology,environment,and management".The quantitative evaluation method of prefabricated building hoisting risk is proposed based on the weight and unascertained measurement method.The subjective weight of evalu-ation indicators is calculated using AHP.The objective weight of evaluation indicators is calculated using the entropy weight method.The combination weight is calculated based on the principle of minimum entropy.Taking a prefabricated residential project in Hunan Province as an example for research.The study shows that the overall risk of the project's lifting is classified as Levelc4(with relatively low risk).The AHP-entropy combination weight empowerment method is highly operable and can be used for the quantitative evaluation of the hoisting risk of prefabricated buildings.