能源研究与管理2023，Vol.15Issue(4)：163-168,6.DOI:10.16056/j.2096-7705.2023.04.025
层析成像技术检测钢筋混凝土框架柱的试验研究
Experimental Research on Tomography Technology to Measure the Reinforced Concrete Frame Column
摘要
Abstract
It has been carried out Computerized Tomography method to measure the internal defects and concrete strength of reinforced concrete frame column.and the strength of column concrete is detected by rebound and coring methods to test the adaptation and accuracy of tomography technology in inferring concrete strength.Research shows that:1)It can make sound wave velocity at any point on the component cross-section by tomography technology,and accurately lock the location,scope,and proportion of quality defects by analyzing changes in wave velocity.It cannot put quality defects as an evaluation standard for the bearing capacity of components because the determined quality defect belongs to a relative quality defect,and there must be carried out some methods such as concrete rebound and load testing to further test its bearing capacity.2)The inferred concrete strength value based on average wave velocity is about 65％-70％of concrete rebound detection value,and 80％-85％of the core detection value,and it is safe for the inferred concrete strength value is lower than the measured value.It is the average strength of cross-section concrete,which has important reference value.3)Although tomography technology has obvious advantages in detecting internal defects in components,it is only suitable for qualitative analysis,and when it is used to estimate the strength of concrete,the accuracy is poor,it is recommended to use other methods such as combined rebound.关键词
超声波/混凝土回弹/声速与波幅/混凝土强度Key words
tomography technology/concrete strength rebound/contour map/experimental research分类
建筑与水利引用本文复制引用
邓龙龙,邓燕华,熊龙,穆新盈,史路军..层析成像技术检测钢筋混凝土框架柱的试验研究[J].能源研究与管理,2023,15(4):163-168,6.基金项目
2023年度广东省普通高校重点领域专项"低矮房屋洪灾破坏机理的大涡模拟研究"(2023ZDZX4093) （2023ZDZX4093）
2021年度江西省教育厅科技类重点项目"钢筋混凝土叠合梁板交角处装配式模板系统开发与应用"(GJJ215301) （GJJ215301）
