缓粘结预应力混凝土沉淀池三维有限元仿真分析

Three-Dimensional Finite Element Simulation Analysis of Slowly Bonded Prestressed Concrete Sedimentation Tank

摘要: 将缓粘结预应力技术应用于市政设施沉淀池结构，实现了无粘结预应力施工优势和有粘结预应力优良协同受力性能的有机结合。本文结合甘肃省某市某缓粘结预应力混凝土沉淀池结构，采用ANSYS软件对沉淀池缓粘结预应力钢筋张拉施工、正常储水运营、满池校核水位验证和空池检修四种典型受力状态进行了系统仿真分析，明确了缓粘结预应力混凝土沉淀池在各种工况下的受力机理，提出了预应力钢筋布设方案，验证了缓粘结预应力技术在混凝土沉淀池结构应用的可行性和适用性，对同类工程的设计和施工有一定的参考价值。

Abstract: The slow bonding prestressing technology is applied to the municipal facility sedimentation tank structure, which realizes the organic combination of the advantages of unbonded prestressing construction and the excellent combined force performance of bonded prestressing. In this paper, combined with a slow-bonded prestressed concrete sedimentation tank structure in a city of Gansu Province, ANSYS software is used to construct the prestressed steel bar tensile construction, normal water storage operation, full pool check water level verification and empty pool maintenance. The system simulation analysis of the typical stress state is carried out, and the force mechanism of the slow-bonded prestressed concrete sedimentation tank under various working conditions is clarified. The prestressed steel reinforcement layout scheme is proposed to verify the slow-bonding pre-stressing technology in concrete sedimentation. The feasibility and applicability of the application of the pool structure have certain reference value for the design and construction of similar projects.