کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
287682 509580 2014 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modal flexibility-based damage detection of cantilever beam-type structures using baseline modification
ترجمه فارسی عنوان
تشخیص آسیب مبتنی بر انعطاف پذیری مودال ساختارهای نوعی پرتوهای کانال با استفاده از اصلاح پایه
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی

This paper presents a new damage detection approach for cantilever beam-type structures using the damage-induced inter-storey deflection (DIID) estimated by modal flexibility matrix. This approach can be utilized for damage detection of cantilever beam-type structures such as super high-rise buildings, high-rise apartment buildings, etc. Analytical studies on the DIID of cantilever beam-type structures have shown that the DIID abruptly occurs from damage location. Baseline modification concept was newly introduced to detect multiple damages in cantilever beam-type structures by changing the baseline to the prior damage location. This approach has a clear theoretical base and directly identifies damage location(s) without the use of a finite element (FE) model. For validating the applicability of the proposed approach to cantilever beam-type structures, a series of numerical and experimental studies on a 10-storey building model were carried out. From the tests, it was found that the damage locations can be successfully identified by the proposed approach for multiple damages as well as a single damage. In order to confirm the superiority of the proposed approach, a comparative study was carried out on two well-known damage metrics such as modal strain-based damage index approach and uniform load surface curvature approach.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 333, Issue 18, 1 September 2014, Pages 4123–4138
نویسندگان
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