Modal testing as a tool for non-destructive testing of concrete structures

被引：0

作者：

Ndambi, JM ^{[1
]}

Vantomme, J ^{[1
]}

De Visscher, J ^{[1
]}

De Wilde, WP ^{[1
]}

Peeters, B ^{[1
]}

Wahab, MA ^{[1
]}

De Roeck, G ^{[1
]}

机构：

[1] Royal Mil Acad, Dept Civil Engn, Brussels, Belgium

来源：

EMERGING TECHNOLOGIES IN NDT | 2000年

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents experimental results from vibration tests of reinforced concrete beams subjected to progressive cracking. Three reinforced concrete beams of 6 meters length have been examined. Cracks are artificially induced in these beams by static loading tests in a certain number of load-steps. After each static load-step, a complete experimental modal analysis is performed in order to determine the dynamic characteristics of the beams. The dynamic characteristics are determined by performing curve-fitting procedures on series of measured frequency response functions of the structure. The influence of the nonlinear behaviour of the concrete beams is investigated by performing dynamic measurements at different excitation amplitudes. The influence of progressive cracking on eigenfrequencies, modal damping ratios and mode shapes is investigated. The results show that progressive cracking of the beams results in a measurable frequency shift. The evolution of modal damping ratios is discussed and commented. The non-linear behaviour is observed, even at the very low amplitude at which the modal analysis is performed. However, the influence on resonant frequencies and mode shapes is negligible. This is not the case for the modal damping ratios.

引用

页码：301 / 308

页数：8

共 50 条

[31] NON-DESTRUCTIVE TESTING OF UNDERWATER CONCRETE STRUCTURES USING REMOTELY CONTROLLED DRONES
Venkatesh, Vishnu
Ashish, Anthony Jacob
Gupta, Sanchit
Sangani, Abhijeet
Jhunjhunwala, Tanuj
Upadhyay, Vineet
Rajagopal, Prabhu
Balasubramanian, Krishnan
PROCEEDINGS OF 2022 49TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, QNDE2022, 2022,
[32] Condition assessment of concrete in hydraulic structures by surface wave non-destructive testing
Al Wardany, Riad
Ballivy, Gerard
Rivard, Patrice
MATERIALS AND STRUCTURES, 2009, 42 (02) : 251 - 261
[33] Thermal wave imaging for non-destructive testing and evaluation of reinforced concrete structures
Dua, G.
Mulaveesala, R.
INSIGHT, 2018, 60 (05) : 252 - 256
[34] NON-DESTRUCTIVE TESTING
DOTTER, CT
CIRCULATION, 1958, 18 (02) : 161 - 164
[35] NON-DESTRUCTIVE TESTING
BLY, JH
OCONNOR, DT
PROCEEDINGS-AMERICAN SOCIETY FOR TESTING AND MATERIALS, 1953, 53 : 534 - 535
[36] NON-DESTRUCTIVE TESTING
BLY, JH
PROCEEDINGS-AMERICAN SOCIETY FOR TESTING AND MATERIALS, 1951, 51 : 486 - 487
[37] Condition assessment of concrete in hydraulic structures by surface wave non-destructive testing
Riad Al Wardany
Gerard Ballivy
Patrice Rivard
Materials and Structures, 2009, 42 : 251 - 261
[38] Non-destructive testing
Aubele, Mark
Keown, Phil
MATERIALS WORLD, 2008, 16 (04) : 42 - +
[39] NON-DESTRUCTIVE TESTING
BLY, JH
PROCEEDINGS-AMERICAN SOCIETY FOR TESTING AND MATERIALS, 1949, 49 : 520 - 521
[40] NON-DESTRUCTIVE TESTING
WILKINSON, L
COTTON, PS
CHEMISTRY & INDUSTRY, 1960, (04) : 93 - 93

← 1 2 3 4 5 →