Assessment of semi-rigid connections in steel structures by modal testing

Türker, Temel; Kartal, Murat Emre; Bayraktar, Alemdar; Muvafık, Murat

doi:10.1016/j.jcsr.2009.03.002

Cited by 37 publications

(20 citation statements)

References 13 publications

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“…Several investigators acknowledged and demonstrated that traditional assumptions of connections being either fixed or pinned can lead to significant errors in the analysis of static (Lee and Moon, 2002) and dynamic response (da Silva et al., 2008; Galvão et al., 2010; Tuürker et al., 2009; Wong et al., 1995), design and sizing of members (Lee and Moon, 2002), as well as design against progressive collapse (Liu et al., 2010). The findings obtained in Section 4.4 of this study also support these earlier studies that neither the fixed nor the pinned connections are acceptable to represent the two‐bolt connection used in the steel frame studied herein.…”

Section: Identification and Prioritization Of Constituentsmentioning

confidence: 99%

Prioritization of Code Development Efforts in Partitioned Analysis

Hegenderfer

Atamturktur

2012

Computer aided Civil Eng

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In partitioned analysis of systems that are driven by the interaction of functionally distinct but strongly coupled constituents, the predictive accuracy of the simulation hinges on the accuracy of individual constituent models. Potential improvement in the predictive accuracy of the simulation that can be gained through improving a constituent model depends not only on the relative importance, but also on the inherent uncertainty and inaccuracy of that particular constituent. A need exists for prioritization of code development efforts to cost‐effectively allocate available resources to the constituents that require improvement the most. This article proposes a novel and quantitative code prioritization index to accomplish such a task and demonstrates its application on a case study of a steel frame with semirigid connections. Findings show that as high‐fidelity constituent models are integrated, the predictive ability of model‐based simulation is improved; however, the rate of improvement is dependent upon the sequence in which the constituents are improved.

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Section: Identification and Prioritization Of Constituentsmentioning

confidence: 99%

Prioritization of Code Development Efforts in Partitioned Analysis

Hegenderfer

Atamturktur

2012

Computer aided Civil Eng

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“…Experimental results obtained for the 2D steel frame model, illustrated in reference [19], are used to compare the results provided by the present model. The experimental measurements accomplished in [19] aim at obtaining the frame natural frequencies, the frame mode shapes and the modal damping ratios.…”

Section: Experimental Comparison: 2d Simple Framementioning

confidence: 99%

“…The experimental measurements accomplished in [19] aim at obtaining the frame natural frequencies, the frame mode shapes and the modal damping ratios. The frame is built using steel bars with a rectangular cross-section of 0.03× 0.01 m. The height and span of the model are equal to 0.90 m. The feets of the model are welded to a flange placed on a concrete block, and beam-to-column connections are welded to each other.…”

Section: Experimental Comparison: 2d Simple Framementioning

confidence: 99%

Analysis of second-order shear-deformable beams with semi-rigid connections

Castellazzi

2012

Journal of Constructional Steel Research

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“…Türker ve diğerleri [5] modal testle üç çelik yapı üzerinde yarı-rijit bağlantı durumunu değerlendirmiştir. Bu amaçla yapıların dinamik karakteristiklerini deneysel ve analitik olarak belirlemiştir.…”

Section: Introductionunclassified

Si̇metri̇k Ve Si̇metri̇k Olmayan Üç Boyutlu Çeli̇k Yapilarin Operasyonel Modal Anali̇zi̇

Komur

Deneme

2016

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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ÖZBu çalışmada laboratuarda inşa edilen biri simetrik diğeri simetrik olmayan iki çelik yapının operasyonel modal analizleri yapılarak dinamik karakteristikleri belirlenmiştir. Bunun için her iki çelik yapıda da altı adet tek eksenli ivmeölçer kullanılmıştır. Çevresel etkilerden yararlanılarak yapılan deneysel ölçüm sonucu elde edilen verilerin değerlendirilmesinde ARTEMİS programında mevcut frekans tanım alanında ayrıştırma ve stokastik altalan belirleme yöntemleri kullanılmıştır. Ayrıca sözkonusu çelik yapılar nümerik olarak da modellenerek mod şekilleri ve doğal frekansları belirlenmiştir. Nümerik ve deneysel sonuçların karşılaştırılmasında birbirine yakın sonuçlar elde edilmiştir.Anahtar Kelimeler: Çelik yapı, operasyonel modal analiz, dinamik karakteristik OPERATIONAL MODEL ANALYSIS OF SYMMETRIC AND ASYMMETRIC THREE DIMENSIONAL STEEL STRUCTURES ABSTRACTIn this study, symmetric and asymmetrical steel structures were constructed in the laboratory and analyzed using operational modal analysis to determine the dynamic characteristics. Six different single-axis accelerometers were used for both steel structures. The test results obtained from the environmental excitation were evaluated by ARTEMIS software package which can perform Stochastic Subspace Identification Method and Peak Picking Method. Mode shapes and natural frequencies of the two steel structures were also calculated numerically. A good agreement was observed when the results obtained from experimental and numerical analysis were compared.

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Assessment of semi-rigid connections in steel structures by modal testing

Cited by 37 publications

References 13 publications

Prioritization of Code Development Efforts in Partitioned Analysis

Prioritization of Code Development Efforts in Partitioned Analysis

Analysis of second-order shear-deformable beams with semi-rigid connections

Si̇metri̇k Ve Si̇metri̇k Olmayan Üç Boyutlu Çeli̇k Yapilarin Operasyonel Modal Anali̇zi̇

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