污水池改造修复中底板多工况分析与实例研究

Multi-condition Analysis and Case Study of Bottom Slab in Renovation and Restoration of Sewage Tanks

摘要:

为解决局部改造引发的污水处理厂圆形水池结构泵房底板内力重分布的问题，以青岛市某污水处理厂污水池改造工程为例，采用整体建模的有限元方法，系统分析了正常运行、事故高水位等多种工况下底板的内力变化特征。结果表明，改造后底板的内力分布形态发生显著变化，需依据各工况下的内力包络结果进行配筋优化，并对原结构采取相应的加固措施。在施工过程中，可采取实时监测与动态控制的手段，确保实际作业中的结构受力与设计模型一致，从而保障结构安全。工程实施效果良好，验证了该方法的可靠性，可为同类改造工程提供参考。

Abstract:

To address the issue of internal force redistribution in the bottom slab of the circular water tank structure pump room in the wastewater treatment plant caused by partial renovation, taking the renovation project of sewage tank in a wastewater treatment plant in Qingdao as an example, the finite element method of overall modeling is used to systematically analyze the variation patterns of internal forces in the bottom slab under various operating conditions such as normal operation and high water level due to accidents. The results indicate that after the renovation, the internal force distribution pattern of the bottom slab has changed significantly, and reinforcement optimization needs to be carried out based on the envelope results of internal force under each operating condition, and the corresponding reinforcement measures should be taken for the original structure. During construction, the real-time monitoring and dynamic control can be adopted to ensure that the structural forces in the actual operation are consistent with the design model, thereby guaranteeing structural safety. The implementation effect of the project is good, verifying the reliability of this method and providing a reference for similar renovation projects.