Nondestructive Strength and Rehabilitation Assessment of Wood-Based Structures

木结构的无损强度与修复评估

• 批准号: 8620458
• 负责人: Andrew Stewart
• 金额: $ 17.69万
• 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: 1988
• 资助国家: 美国
• 起止时间: 1988-02-01 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8620458&HistoricalAwards=false
• 关键词: Nondestructive; Strength; Rehabilitation; Assessment; Wood

Phase I developed methods for reliably assessing the bending strength of in-situ wood members will be refined using nondestructive evaluation (NDE) procedures involving spectral analysis of stress-wave parameters. Phase I research has verified the feasibility of this NDE technique. Phase II research will enable detailed refinement of the NDE method ultimately leading to commercial NDE devices for in-situ testing of wood members. Currently, no reliable methods exist which can accurately define the strength of individual wood beams. Phase I research has provided a highly accurate NDE method to predict the in-site strength of individual beams. Successful refinement of this technique is anticipated for the Phase II research. Such procedures will improve the efficient utilization of critical wood resources.

第一阶段制定了可靠评估 现浇木构件的抗弯强度将采用 无损评价（NDE）程序，包括光谱 应力波参数分析 第一阶段的研究 验证了该无损检测技术的可行性。 二期 研究将使NDE方法得到详细改进 最终导致商业无损检测设备， 测试木材。 目前还没有可靠的方法 它可以精确地确定单个木材的强度 梁。 第一阶段的研究提供了一个高度准确的无损检测 方法来预测现场强度的个别梁。 预计这项技术的成功改进将用于 第二阶段研究。 这些程序将提高效率， 利用重要的木材资源。