基于反应谱法的岸塔式进水塔抗震稳定性分析

Seismic Stability Analysis of Shore Tower Intake Tower Based on Response Spectrum Method

基于大型有限元软件ABAQUS,以某岸塔式进水塔为研究对象建立三维有限元仿真模型,利用反应谱法对该进水塔在地震作用下的稳定性进行分析,总结评价最大应力产生的位置,并提出相应的加固处理措施。结果表明,进水塔回填混凝土高程位置出现了最大值为2.337 MPa的拉应力,建议选取合适的回填高程并加强回填高程附近的配筋;底部、纵向连系梁、横连系梁应力比较大,塔体部位应力较小,在设计过程中建议增强连系梁的配筋,研究结果可为同类工程提供参考。

In this paper,based on ABAQUS,a three-dimensional finite element simulation model is established with a bank tower intake tower as the research object.Based on the response spectrum method,the stability of the intake tower under earthquake action is analyzed,and the maximum stress generated the location and the corresponding reinforcement measures are proposed.The results show that the maximum tensile stress of 2.337MPa appears at the backfill concrete elevation of the intake tower.It is recommended to select a suitable backfill elevation and strengthen the reinforcement near the backfill elevation;the bottom,longitudinal connecting beams and transverse connecting beams have relatively large stresses,the stress of the tower body is relatively small,it is recommended to strengthen the reinforcement of the connecting beam during the design process.The research results can provide reference for similar projects.