Title: Calculation and analysis of gully-buried prestressed inverted siphon structure

Authors: Dong-yu Ji; Xiao Mi

Addresses: Hunan Urban Construction College, Xiangtan, Hunan 411101, China ' North China University of Water Resources and Electric Power, Zhengzhou, Henan 450046, China

Abstract: Inverted siphon is a kind of cross-channel building, in order to study the stress distribution law of the buried prestressed inverted siphon structure. The force and deformation characteristics of Xinanpu inverted siphon are analysed by finite element software. In the establishment of finite element calculation model, the arrangement of inverted siphon prestressed reinforcement and the setting of pier are considered. A separate reinforcement calculation model is used to simulate the effect of prestressed reinforcement by applying initial strain, the boundary condition of inverted siphon structure is simulated by the fixed constraint between inverted siphon and pier. By numerical simulation analysis of inverted siphon structure, the cloud maps of stress and displacement and path charts of inverted siphon under various cases are given, then the results are analysed to check the safety performance of inverted siphon, the research results provide a theoretical basis for construction organisation design.

Keywords: gully-buried inverted siphon; loss of prestress; structure design; numerical simulation; simulation analysis.

DOI: 10.1504/IJCIS.2021.114356

International Journal of Critical Infrastructures, 2021 Vol.17 No.1, pp.1 - 20

Received: 25 Sep 2019
Accepted: 05 Dec 2019

Published online: 07 Apr 2021 *

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