长沙理工大学学报（自然科学版）2016，Vol.13Issue(1)：43-48,68,7.
锈蚀梁钢板加固后可靠指标提高量分析与计算
Analysis and calculation for improving reliability index of corroded beams strengthened by bonded steel plates
摘要
Abstract
According to the adhesive coefficient of corrosion RC beams,as well as the tested bending moment of nine tested beams,based on the tested results of flexural capacity of corroded beams,the collaborative work coefficients of the steel plate and the corroded RC beams are fitted and the resistance assessment model of corroded beam with/without strengthened by bonded steel plate are developed.Using error transition function,the calcu-lation equations of mean value and coefficient of variation for structural resistance are ob-tained.The JC method is used to calculate the improvement of reliability indicator of corro-ded beam with/without strengthened by steel plate.The influences of cover,corrosion rate and steel plate depth on the improvement of reliability indicator of corroded beam are per-formed and the parametric sensitivity analysis is conducted.It is indicated from calculated results that there are few influences of cover and corrosion rate on the improvement of relia-bility index and there is a larger influence of depth of steel plate on improvement of reliabili-ty indicator.When the depth of steel plate varies from 3 mm to 5 mm,the improvement of reliability indicator increased nearly 1 times.关键词
锈蚀梁/粘贴钢板加固法/协同工作系数/可靠指标提高量Key words
corroded beams/strengthening method with steel plate/coordination coeffi-cient/improvement of reliability index分类
交通工程引用本文复制引用
彭建新,李星,唐皇,张建仁..锈蚀梁钢板加固后可靠指标提高量分析与计算[J].长沙理工大学学报（自然科学版）,2016,13(1):43-48,68,7.基金项目
国家重点基础研究发展“973”计划项目(2015CB057706) （2015CB057706）
国家自然科学基金资助项目(51178060,51378081) （51178060,51378081）
交通运输部主干学科应用基础研究项目(2014319825160) （2014319825160）
湖南省教育厅优秀青年项目(15B015) （15B015）
