老化混凝土板的分层弹性分析  

A Research on the Deflection of the Aging RC Plate

作　　者：赵震洋 谢慧才[2] 于杰[3] 

机构地区：[1]贵阳市建设委员会,贵州贵阳550003 [2]汕头大学建工系,广东515063 [3]贵州省科学院,贵州贵阳550003

出　　处：《贵州工业大学学报（自然科学版）》1999年第5期88-96,102,共10页Journal of Guizhou University of Technology(Natural Science Edition)

基　　金：贵州省科学技术基金

摘　　要：为了更加准确地认识混凝土板劣化后的状态，根据实验得到的结果，建立了混凝土板劣化后的多层分析模型，相应建立了混凝土老化后的应力应变、内力应变关系和平衡方程；并考察了均布载荷作用下简支板的弯曲变形。通过对新老混凝土板的编程计算，求得了各自的挠度，讨论了模型关于层数的收敛性以及最适宜的分层数；得出了安全评价中必须对混凝土外层劣化给予准确认识和特别注意的结论。Based on the experimental result,a multi-layer analysis model of the deteriorated RC plate was formed to better identify the state of deterioration.Correspondingly,the relationships between strss and stain and between eigenforces and strain were established the equillibrium equation was formulated and the deflection function of simple-support plate subjected to a uniformly distributed load was inspected.Different deflection deformations for the fresh and aging RC plates were obtained through programed calculation.By comparing delections of different layers in RC plate,a conclusion has been reached that a greater attention must be paid to outer layer deteriorating of the RC plate in safety assessment.

关 键 词：老化混凝土 腐蚀损伤 弯曲 分层分析 混凝土板 

分 类 号：TU375.201[建筑科学—结构工程]