Nondestructive Strength Assessment of In-Situ Timber Piles

原位木桩的无损强度评估

• 批准号: 8860136
• 负责人: Ronald Anthony
• 金额: $ 4.98万
• 依托单位: Engineering Data Management. Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-01-01 至 1989-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8860136&HistoricalAwards=false
• 关键词: Nondestructive; Strength; Assessment; Situ; Timber

Methods for reliably assessing the in-situ strength of timber piles will be studied using nondestructive evaluation procedures involving spectral analysis of longitudinal stress wave parameters. Basically the nondestructive test parameters are obtained by impacting the speciman longitudinally and recording the input and output sonic waves that result from the impact. Using a number of advanced statistical procedures, correlations are obtained between the waveform parameters and the mechanical properties of the timber piles. Development of reliable nondestructive test procedures for in-situ wood piles will enable structural engineers to evaluate the structural reliability and rehabilitation potential of existing pile structures.

木材现场强度的可靠评定方法 将使用无损评估程序对桩进行研究 包括纵向应力波的频谱分析 参数 基本上无损检测参数是 通过纵向撞击微透镜并记录 由撞击产生的输入和输出声波。 使用一些先进的统计程序，相关性 在波形参数和机械参数之间获得 木材桩的特性。 发展可靠 现场木桩的无损检测程序将使 结构工程师评估结构可靠性， 现有桩结构的修复潜力。