Dynamic analyses of square RC pier column subjected to barge impact using efficient models

Wang, W.; Morgenthal, Guido

doi:10.1016/j.engstruct.2017.08.003

Cited by 59 publications

(16 citation statements)

References 15 publications

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“…e code was previously veri ed by detailed nite-element simulation results from LS-DYNA [8]. Geometric nonlinearity of beam elements is analyzed using the corotational approach for problems of large displacements and small strains.…”

Section: Simplified Impact Model Based On Cmmmentioning

confidence: 99%

“…e CMM previously developed by the authors simpli es the complex nite-element barge model into a nonlinear massspring model (MSM) and models the pier column using discrete masses and bre beam elements [8], as shown in Figure 3, where m b is the lumped barge mass and v b is the impact velocity.…”

Section: Overview Of Cmmmentioning

confidence: 99%

“…e quality of CMM regarding the prediction of impact force time history and dynamic pier responses was assessed in large detail for di erent impact scenarios in [8] by using FBIM as the benchmark model. e validated CMM is thus used for the studies herein.…”

Section: Overview Of Cmmmentioning

confidence: 99%

“…e simpli ed impact model transforms the highly nonlinear full barge impact model (FBIM) into a coupled multi-degree-of-freedom model (CMM). e accuracy and e ciency of CMM were thoroughly assessed for di erent impact scenarios [8]. is paper employs such simpli ed impact model to investigate the energy dissipation capacity of the proposed device and the magnitude of impact force transmitted to the bridge pier by the steel beams during impact for di erent structural con gurations.…”

Section: Introductionmentioning

confidence: 99%

“…Barge collisions upon bridge structures were also frequently reported. Such collisions can often lead to catastrophic consequences including human casualties and economic losses; thus substantial investigations regarding the quantification of barge impact loading and dynamic structural responses have been conducted in recent years [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Novel Crashworthy Device for Pier Protection from Barge Impact

Wang

Morgenthal

2018

Advances in Civil Engineering

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Barge impact is a potential hazard for bridge piers located in navigation waterways. Protective structures of different types, for example, dolphin structures, artificial islands, and guiding structures, have been widely used in bridge designs against barge impact. However, such structures often imply high cost and suffer from difficulties in installation as well as maintenance challenges. is paper aims to devise and investigate a new type of crashworthy device which is comprised of vertically supported impact cap connected to the bridge pier using a series of steel beams in a frame-type arrangement. is sacrificial steel structure is designed to form plastic hinges for energy dissipation whilst limiting the force transmitted to the protected pier. e dynamic analysis of the proposed crashworthy device subjected to barge impact is conducted using a simplified impact model previously developed by the authors. e parametric studies in this paper show that the proposed device has a large energy dissipation capacity and that the magnitude of impact force transmitted to the bridge pier can be dramatically reduced. In addition, an optimization model is proposed in this paper to achieve the cost-optimized design of the crashworthy device for a given impact scenario with constraints as per the prescribed design requirements.

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Section: Simplified Impact Model Based On Cmmmentioning

confidence: 99%

Section: Overview Of Cmmmentioning

confidence: 99%

Section: Overview Of Cmmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel Crashworthy Device for Pier Protection from Barge Impact

Wang

Morgenthal

2018

Advances in Civil Engineering

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Numerische Untersuchungen einer energiedissipierenden Schutzvorrichtung gegen Schiffsanprall

2019

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Herrn Univ.‐Prof. Dr.‐Ing. habil. Frank Werner zur Vollendung seines 70. Lebensjahres gewidmet Ein Schiffsanprall stellt eine außergewöhnliche Beanspruchungssituation dar, die die Sicherheit von Brückenbauwerken im Bereich von Wasserstraßen gefährdet. Zur Vermeidung des unmittelbaren Anpralls gegen Brückenpfeiler kommen unterschiedliche Schutzvorrichtungen zum Einsatz. Derartige Schutzsysteme dissipieren einen Großteil der Anprallenergie durch die Entwicklung plastischer Deformationen, sodass die vom Pfeiler bzw. Schiff zu absorbierende Energie auf ein Minimum reduziert wird. In diesem Beitrag werden numerische Untersuchungen und das strukturelle Verhalten einer neuartigen kollisionssichernden Konstruktion vorgestellt, bei der sich beim Anprall plastische Mechanismen in klar definierten Bauteilbereichen entwickeln und übrige Konstruktionselemente im elastischen Zustand verbleiben. Da die Konstruktion nach einem Anprallereignis dadurch in weiten Bereichen nicht geschädigt ist, können sich Wiederherstellungsmaßnahmen auf lokal begrenzte Bereiche beschränken. Die konstruktive Durchbildung von Konstruktionsdetails steht bei den Untersuchungen nicht im Mittelpunkt und soll in weitergehenden Studien entwickelt werden.

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Introduction

Wu,

Cheng,

2024

Springer Tracts in Civil Engineering

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Dynamic analyses of square RC pier column subjected to barge impact using efficient models

Cited by 59 publications

References 15 publications

Novel Crashworthy Device for Pier Protection from Barge Impact

Novel Crashworthy Device for Pier Protection from Barge Impact

Numerische Untersuchungen einer energiedissipierenden Schutzvorrichtung gegen Schiffsanprall

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