Validation of numerical models of concrete box bridges based on load test results

Bień, J.; Kużawa, Mieszko; Kamiński, T.

doi:10.1016/j.acme.2015.05.007

Cited by 25 publications

(24 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This idea of averaging corresponds to the PP-CA algorithm, in which this operation is inherent at the procedure start, where the measured signal is split into n d parts; next the spectral functions are computed as averages over the n d signal set (see Eqs. 7,8).…”

Section: Discussionmentioning

confidence: 99%

“…Resonant frequencies are identified using the averaged normalized power spectral density function (ANPSD) calculated for the measured ambient responses of the bridge deck. Spectral analysis is also applied to the measurement results of Rędziński Bridge (Poland) [8]. In this case, free response signals collected after the passages of vehicles are considered as an input.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on applicability of two modal identification techniques in irrelevant cases

Tomaszewska

Szafrański

2020

Archiv.Civ.Mech.Eng

View full text Add to dashboard Cite

Study on applicability of two modal identification techniques in irrelevant cases is made in this paper. The following techniques are considered: peak picking based on correlation analysis (PP-CA), dedicated for ambient vibrations and eigensystem realization algorithm (ERA), formulated for free-decay vibrations investigation. Irrelevant cases are found when analyzed signals are different than recommended to a given technique. The study is conducted on examples of two real structures: masonry tower and steel railway bridge. Both cases are diverse in age, material, excitation and vibrations energy. The signals measured on the tower are suitable for the PP-CA technique (ambient vibrations), while the signals measured on the bridge are suitable for the ERA (free-decay vibrations). However, both methods have been applied to both systems. Natural frequencies, mode shapes and damping ratios are identified and the effectiveness of the irrelevant technique is assessed in relation to the results obtained by the relevant method in each case.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on applicability of two modal identification techniques in irrelevant cases

Tomaszewska

Szafrański

2020

Archiv.Civ.Mech.Eng

View full text Add to dashboard Cite

show abstract

“…This poses the basis for the testing itself. Experimental values should be compared to the theoretical model of the structure . Testing process should also confirm that tunnel performance indicators can be observed using the applied monitoring system.…”

Section: Monitoring Implementation and Operationmentioning

confidence: 99%

Sensing and monitoring in tunnels testing and monitoring methods for the assessment of tunnels

Strauß

Bień

Neuner

et al. 2020

Structural Concrete

View full text Add to dashboard Cite

The paper presents a review of testing methods and a classification of strategies and tools in terms of technologies and techniques applied to the monitoring of tunnels. In particular, the topic is contextualized through a brief introduction in Chapter 1, followed by defect taxonomy and degradation mechanisms in Chapters 2 and 3, respectively. Chapters 4 and 5 are related to monitoring strategies and technologies. The former consists of purpose‐based categorization of monitoring policies, while the latter consists of classification of monitoring methods including nondestructive and semidestructive techniques as well as of classification of various types of sensors also based on the physical or chemical quantity measured. General rules of implementation and operation of tunnel monitoring systems are presented taking into account international expert knowledge as well as contemporary practical experience in Austria. Considered issues are related to the fib Model Code 2020 (MC2020) focused on evaluation of structural performance assisted by monitoring and testing. Chapter 6 presents challenges related to the monitoring implementation and operation. Chapter 7 discusses about monitoring characteristics in new tunnel, including data acquisition‐transmission and specific monitoring techniques. Chapter 8 instead treats a particular topic related to considerations related to monitoring characteristics of existing tunnel under investigation. Concluding remarks and references finally close the paper.

show abstract

“…It is needed to load the bridge in such a way that the resulting effects, such as internal forces, displacements, and stresses are large enough. Namely the ratio between the measured and designed values should be greater than 75% and not exceed 100% [39][40][41][42][43][44][45][46][47][48].…”

Section: Short-term Load Testsmentioning

confidence: 99%

Short and Long Term Measurements in Assessment of FRP Composite Footbridge Behavior

2020

View full text Add to dashboard Cite

The paper presents application of different sensors for the purpose of short and long term measurements, as well as a structural health monitoring (SHM) system to assess the behavior of a novel fiber reinforced plastics (FRP) composite footbridge. The aim is to present a thorough and concise description of these sensors networks and results gathered with their aid during in situ measurement of strains, displacements, and vibrations, as only a few works are available in this field. The bridge geometry, material solutions, and properties are described at first. Then the measurement devices composing the system and subsystems of sensors are elaborated on. Subsequently, the bridge research program is described and the results are shown and discussed. Finally, it is concluded that the use of selected sensors is helpful in assessment of the behavior of the novel structure, and moreover in validation of its numerical models. The collected data confirmed many assumptions made during the bridge design process and allowed us to accept it for exploitation.

show abstract

Validation of numerical models of concrete box bridges based on load test results

Cited by 25 publications

References 13 publications

Study on applicability of two modal identification techniques in irrelevant cases

Study on applicability of two modal identification techniques in irrelevant cases

Sensing and monitoring in tunnels testing and monitoring methods for the assessment of tunnels

Short and Long Term Measurements in Assessment of FRP Composite Footbridge Behavior

Contact Info

Product

Resources

About