(1 天津城建大学天津市建筑绿色功能材料重点实验室, 天津 300384;2 天津津贝尔建筑工程试验检测技术有限公司, 天津 300171)

摘要: 为解决超声波检测钢板剪力墙空洞缺陷判断准确性的问题,在现有《 超声法检测混凝土技术规程》 ( CECS21 ∶2000)中概率法 判 断 钢 管 混 凝 土 缺 陷 的 基 础 上,采 用 超 声 对 测 法 通 过 KON-NM-4A 非 金 属 超 声 波 检 测 仪 和50kHz 超声波换能器,对钢板剪力墙空洞缺陷进行检测. 并采用概率法、波列、波形、频谱分析及空洞尺寸估算法从不同角度分析判断钢板剪力墙内空洞缺陷的位置、尺寸,最后尝试通过软件 Surfer 将概率法分析的缺陷位置直观表示. 结果表明,采用概率法可以判断截面尺寸大于 90mm× 90mm 空洞缺陷的位置;采用波形分析法可以补充判断截面尺寸不小于 60mm×60mm 空洞缺陷的位置;采用 Surfer 软件可以对概率法分析结果直观显示.

关键词: 波形分析法; 概率法; 钢板剪力墙; 空洞缺陷; 超声对测法

中图分类号:TU398+. 9 文献标志码:A 文章编号:1002-848X(2022)03-0094-05

DOI:10. 19701 / j. jzjg. 20200214

Comprehensive analysis and judgment of hole defects in steel plate shear wall with ultrasonic testing

ZHAO Jie1, YA Jing1, SHANG Jingyuan2, WEN Chao2, CHEN Qian2, SUN Moran2, WANG Xiaohang1

(1 Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin 300384,China; 2 Tianjin JinBeier Architecture Engineering Test & Inspection Technology Co., Ltd., Tianjin 300171, China)

Abstract: In order to solve the problem of the judgment accuracy of cavity defects of steel shear wall by ultrasonicdetection, based on the probability method in the existing Technical specification for inspection of concrete defects byultrasonic method(CECS 21 ∶2000) to determine the defects of concrete-filled steel tube. Ultrasonic testing method was usedto detect the cavity defects of the steel plate shear wall through the KON-NM-4A non-metal ultrasonic detector and 50kHzultrasonic transducer. Probability method, wave train, waveform, frequency spectrum analysis, and cavity size estimationmethods were used to analyze and judge the location and size of cavity defects in steel plate shear wall from different angles.Finally, the software Surfer was used to visually indicate the position of the defect analyzed by the probability method. Theresults show that the position of cavity defect with cross-section size greater than 90mm×90mm can be judged by probabilitymethod, and it can be added to judge the position of cavity defect with cross-section size not less than 60mm × 60mm bywaveform analysis method. The analysis results of the probability method could be visually displayed by software Surfer.

Keywords:waveform analysis method; probability method; steel plate shear wall; cavity defect; ultrasonic testing

∗天津市企业科技特派员项目(18JCTPJC60700) ,天津市科技局安全天津、科技惠民与可持续发展实验区建设科技专项“ 装配式钢结构建筑(多腔体钢板组合剪力墙结构体系)关键技术研究” (17ZXCXSF00070) .

第一作者:赵杰,硕士,主要从事无损检测技术在装配式建筑中的应用研究,Email:zhaojie7902@ 163. com.

[引用本文] 赵杰,雅菁,尚静媛,等. 超声检测钢板剪力墙空洞缺陷的综合分析与判断[ J] . 建筑结构,2022,52(2) :94-98. ZHAO Jie,YA Jing,SHANG Jingyuan,et al. Comprehensive analysis and judgment of hole defects in steelplate shear wall with ultrasonic testing[ J] . Building Structure,2022,52(2) :94-98.