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Fundamental Research on Quantitative Non-Destructive Evaluation of Structures in Civil Engineering

土木工程结构定量无损评价基础研究

基本信息

批准号：
02302058
负责人：
KISHINO Yuji
金额：
$ 1.79万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02302058/
关键词：
Non-Destructive Evaluation Steel Concrete Ground Rock masses Wave Propagation Analysis Ultrasonic Inspection Acoustic Emission

项目摘要

Recently, various methods have been proposed to evaluate the degree of mechanical soundness of materials. However, solid masses and/or in homogeneities give rise to difficult problems in quantitative evaluation of structural materials in civil engineering. In pursuing this project, the research members from the fields of mechanics of materials, steel-structural engineering, concrete engineering, soil engineering and rock mechanics cooperated with the members of Committee of Non-Destructive Evaluation in Japan Society of Civil, Engineering. Main results of this project are as follows :In the first place, we published a state-of-the arts report entitled "Approaches to Quantitative Non-Destructive Evaluation o Structures and Materials in Civil Engineering", in which non-destructive testings adopted in civil engineering are outlined and the theoretical background of evaluation methods and the perspective of future non-destructive evaluation are reviewed.In the next, as the results of discussions in research meetings, including "Symposium on NonDestructive Evaluation in Civil Engineering" which was organized by the above mentioned committee, we recognized the importance of diverse aspects presented by the members of this project. Among these are 1) the back analyses for the quantitative non-destructive evaluation, 2) the wave-propagation analyses for the quantitative non-destructive evaluation, 3) considerations on the mechanical background and 4) various types of examples.Lastly, we made inquiries about the non-destructive evaluation in the fields of ground engineering, rock engineering, concrete engineering and steel-structural engineering. From these inquiries, we investigated the status quo and extracted the future problems of quantitative non-destructive evaluation in civil engineering.

最近，已经提出了各种方法来评估材料的机械健全程度。然而，固体质量和/或均匀性给土木工程结构材料的定量评估带来了难题。在该项目的研究过程中，来自材料力学、钢结构工程、混凝土工程、土壤工程和岩石力学领域的研究人员与日本土木工程学会无损评估委员会的成员进行了合作。本课题的主要成果如下：首先，我们发表了题为“土木工程结构和材料的定量无损检测方法”的最新报告，概述了土木工程中采用的无损检测方法，回顾了评估方法的理论背景和未来无损评估的前景。接下来，作为研究会议讨论的结果，包括由上述委员会组织的“土木工程无损评估研讨会”，我们认识到该项目成员提出的各个方面的重要性。其中包括：1）定量无损评价的反演分析；2）定量无损评价的波传播分析；3）力学背景的考虑；4）各类实例。最后，我们对地基工程、岩石工程、混凝土工程和钢结构工程等领域的无损评价进行了探讨。从这些询问中，我们调查了土木工程定量无损评价的现状并提炼出了未来的问题。