人民珠江2025，Vol.46Issue(6)：98-106,9.DOI:10.3969/j.issn.1001-9235.2025.06.011
泄水闸检修门库交通桥裂缝成因分析
Cause Analysis of Cracks in Traffic Bridge at Gate Storehouse of a Flood Diversion Sluice
摘要
Abstract
Due to the complex service conditions and foundation conditions of the traffic bridge at the gate storehouse on the left bank of a flood diversion sluice in a water conservancy project,accurately determining the causes of cracks in concrete structures is challenging.This study first qualitatively analyzed potential cracking factors based on service conditions and foundation settlement monitoring data.A 3D finite element model of the entire gate storehouse of the flood diversion sluice was then established.Different calculation conditions were designed considering three main cracking factors:heavy truck load,uneven settlement of foundation,and temperature load.Linear elastic finite element models,viscoelastic finite element models,and temperature stress field simulation models were used to calculate the horizontal stress in the traffic bridge at the gate storehouse caused by these factors,aiming to explore the causes of cracks.The results show that the coupling of adverse temperature drop load in winter and uneven settlement of the foundation generates approximately 3 MPa of tensile stress at the middle position of the traffic bridge at the gate storehouse.By comparing with the actual crack locations on the traffic bridge,it is concluded that the combination of these two factors is the primary cause of cracks,while the heavy truck load is not the main contributing factor.This research provides a reference for crack cause analysis in similar engineering projects.关键词
混凝土裂缝/成因分析/重型卡车/地基不均匀沉降/温度荷载Key words
concrete crack/cause analysis/heavy truck/uneven settlement of foundation/temperature load分类
建筑与水利引用本文复制引用
雷金松,涂月彤,付丙法,钟胜,黄耀英,余进..泄水闸检修门库交通桥裂缝成因分析[J].人民珠江,2025,46(6):98-106,9.基金项目
国家自然科学基金(52179135) （52179135）
