Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nonlinear Fuzzy Evaluation of the Construction Risk of Integral Hoisting of CFST Tied-Arch Bridges
To improve the traditional fuzzy evaluation method and reflect its nonlinear characteristics, a nonlinear fuzzy evaluation method based on the entropy weight of a structure is proposed according to the construction risk characteristics of the integral hoisting of concrete-filled steel tube (CFST) tied-arch bridges. The risk sources in the construction process of the integral hoisting of CFST tied-arch bridges associated with structural and personnel safety are considered, and a construction risk level evaluation system is established. A two-level fuzzy evaluation calculation model of the said bridge is established based on the identified results. The entropy weight of a structure method, which combines the subjective and objective assignment methods, is adopted to calculate the weights of risks. A nonlinear fuzzy algorithm is introduced to reflect the prominent effect of high-risk indicators on the evaluation results. The nonlinear fuzzy evaluation method for the construction risks in a tied-arch integral hoisting of CFST tied-arch bridges is then established. An analysis of an engineering example proves that this method is feasible and effective.
Nonlinear Fuzzy Evaluation of the Construction Risk of Integral Hoisting of CFST Tied-Arch Bridges
To improve the traditional fuzzy evaluation method and reflect its nonlinear characteristics, a nonlinear fuzzy evaluation method based on the entropy weight of a structure is proposed according to the construction risk characteristics of the integral hoisting of concrete-filled steel tube (CFST) tied-arch bridges. The risk sources in the construction process of the integral hoisting of CFST tied-arch bridges associated with structural and personnel safety are considered, and a construction risk level evaluation system is established. A two-level fuzzy evaluation calculation model of the said bridge is established based on the identified results. The entropy weight of a structure method, which combines the subjective and objective assignment methods, is adopted to calculate the weights of risks. A nonlinear fuzzy algorithm is introduced to reflect the prominent effect of high-risk indicators on the evaluation results. The nonlinear fuzzy evaluation method for the construction risks in a tied-arch integral hoisting of CFST tied-arch bridges is then established. An analysis of an engineering example proves that this method is feasible and effective.
Nonlinear Fuzzy Evaluation of the Construction Risk of Integral Hoisting of CFST Tied-Arch Bridges
An, Lang (Autor:in) / Zhang, Xin-ran (Autor:in) / Ge, Su-su (Autor:in) / Li, Yang (Autor:in)
16.05.2016
62016-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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