Soundness evaluation method and evaluation apparatus of post-installed anchors

摘要

PROBLEM TO BE SOLVED: To provide a soundness evaluation method and a soundness evaluation device capable of evaluating soundness of a post-construction anchor easily with a simple configuration.SOLUTION: A method of evaluating soundness of a post-construction anchor is performed by applying impact to the post-construction anchor as a measured object and obtaining an energy ratio of response to the applied impact. The method is configured to evaluate the soundness of the post-construction anchor after construction by: preparing a plurality of test pieces of post-construction anchors with different construction conditions; applying arbitrary impact to each test piece; calculating transfer impedance between an excitation point to which the impact is applied and a response point as a part to measure the response; preparing a relational expression between each obtained transfer impedance and each construction condition; after the actual construction, applying impact to the post-construction anchor under the same condition as the test pieces; calculating transfer impedance between positions of an excitation point and a response point; and applying the obtained transfer impedance to the relational expression to estimate the similar construction condition from among the plurality of construction conditions.