Construction risk assessment of a semi-submersible lifting and dismantling platform
We propose a holistic risk assessment model that encompasses most of the basic risk parameters for a comprehensive assessment of the risk value of a semi-submersible lifting and dismantling platform.The applied models are the integration of trigonometric fuzzy numbers,interval-valued Pythagorean fuzzy(IVPFS),pros and cons solution distance methods(TOPSIS),and grey correlation analysis(GRA).The application of the devel-oped IVPFS-TOPSIS-GRA to the project of risk assessment of the construction of semi-submersible lifting and dismantling platforms mainly involves the following work:First,the application of triangular fuzzy numbers has obtained the importance weight of experts;secondly,in order to avoid the subjective nature of decision makers,a weighting method that combines subjective weights and objective weights based on similarity is provided;third,in combination with TOPSIS-GRA in the interval-valued Pythagorean fuzzy environment,the final ranking of i-dentified security risks is obtained.In addition,sensitivity studies are conducted to verify the robustness and sta-bility of the proposed method.Through the data analysis of the identification of risk factors in construction production management,the key risk hidden areas of construction production management risks are obtained to be the cross-work production man-agement area.The results show that the proposed model can help experts to conduct risk assessment in a fuzzy environment processed with ambiguous and subjective language,overcoming the limitations of common quantita-tive and qualitative estimation.
trigonometric fuzzy numberssubjective and objective empowerment methodIVPFSTOPSIS-GRArisk assessment
万方数据
维普
