河南城建学院学报2025，Vol.34Issue(2)：44-51,8.DOI:10.14140/j.cnki.hncjxb.2025.02.006
变截面波形钢腹板PC组合连续箱梁横隔板研究
Study on diaphragm of PC composite continuous box girder with variable cross-section corrugated steel webs
摘要
Abstract
A three-span continuous box girder finite element model with variable cross-sections and corrugated steel web prestressed concrete(PC)composite structure is developed using ABAQUS software.This study sys-tematically investigate the influence of diaphragm types(UHPC,steel plate,steel frame)and spacing configu-rations on integral warping and distortion effects,ultimately establishing calculation curves for determining max-imum diaphragm spacing thresholds.The results show that the reasonable setting of diaphragm in PC composite continuous box girder with corrugated steel web can effectively limit the integral warping stress and distorted warping stress;the distortion effect of corrugated steel web composite continuous box girder is less affected by the type of diaphragm;UHPC and steel plate diaphragm have both lightweight and excellent restraint perform-ance,and the integral warping stress is 59.88％lower than that of steel frame diaphragm;the restraint efficien-cy of steel plate diaphragm is the weakest,and the peak value of distortion warping stress is 32.69％higher than that of other types.The study suggests that UHPC or steel plate diaphragms be given priority,and based on curve fitting,it provides optimization references for the spacing in engineering design.关键词
波形钢腹板组合箱梁/整体翘曲/畸变效应/柔性横隔板/有限元分析Key words
composite box girder with corrugated steel webs/integral warping/distortion effect/flexible dia-phragm/finite element analysis分类
交通运输引用本文复制引用
何玉菡,王磊,李夏元..变截面波形钢腹板PC组合连续箱梁横隔板研究[J].河南城建学院学报,2025,34(2):44-51,8.基金项目
江苏省结构工程重点实验室开放课题(ZD2203) （ZD2203）
