Optimisation design and structure analysis of large-scale prestressed rectangular aqueduct
by Wen-Liang Ma; Xin-Li Bai
International Journal of Materials and Structural Integrity (IJMSI), Vol. 12, No. 1/2/3, 2018

Abstract: In order to provide theoretical basis for the design of large-scale prestressed rectangular aqueduct, saving engineering investment, and ensuring the safety and reliability of aqueduct structure. This paper adopts mixed discrete variable optimisation design method to carry out optimisation design for Sha river aqueduct of the south-to-north water diversion project, the objective function of optimisation design is project cost. Calculated results show that, optimisation design scheme of rectangular aqueduct is economic and reasonable, aqueduct structure meets the strength condition and stiffness condition, wind load has little effect for stress and deformation distribution of aqueduct, but water pressure has great effect for stress and deformation distribution of aqueduct. When stress concentration phenomenon at the junction of the longitudinal beams and transverse ribs in the rectangular aqueduct occurs, local stress is higher.

Online publication date: Wed, 08-Aug-2018

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