Concrete-filled Tubular Members and Connections

Zhao, Xiao Ling; Han, Lin‐Hai; Lü, Hui

doi:10.1201/9781482266085

Cited by 72 publications

(75 citation statements)

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“…It provide not only an increase in the load carrying capacity but also rapid construction, and additional cost saving [1,2]. Based on the above characteristics, the theoretical research and engineering application of concretefilled steel tubular composite structure in civil engineering has become more and more extensive in recent years [3][4][5][6].…”

Section: �� mentioning

confidence: 99%

Nonlinear analysis of concrete-filled steel square tube strengthened by internal transverse stiffened bars under axial compression

Li¹

2017

Funct.Mater.

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A new type of concrete-filled square steel tubular(CFSST) column is proposed, which is characterized by the transverse stiffened steel bars arranged inside the pipe wall to improve confinement performance of the concrete core. This paper employs a nonlinear analysis of square CFSST stub columns under axial compression. A three-dimensional nonlinear finite element (FE) model is developed using ABAQUS, where nonlinear material behavior and enhanced strength corner properties of steel are included. Close agreement is achieved between the test and FE results in terms of load-deformation response and ultimate strength.Keywords: �nternal transverse stiffened bars, concrete-filled steel square tube, axial com�nternal transverse stiffened bars, concrete-filled steel square tube, axial comnternal transverse stiffened bars, concrete-filled steel square tube, axial compression, finite element, strength , finite element, strength finite element, strength , strengthДля улучшения характеристик удержания бетонного сердечника предлагается новый тип колонны из бетона с квадратной стальной трубой (CFSST) , который характеризуется поперечными упрочняющими стальными стержнями, расположенными внутри стенки трубы, В настоящей работе используется нелинейный анализ квадратных столбиков CFSST при осевом сжатии. Трехмерная нелинейная модель конечного элемента (FE) разработана с использованием ABAQUS, в которую включены нелинейное поведение материала и усиленные угловые свойства стали. Достигнуто близкое согласие между результатами испытаний и FE в терминах нагрузки и деформации. Для поліпшення характеристик утримання бетонного сердечника пропонується новий тип колони з бетону з квадратної сталевою трубою (CFSST), який характеризується поперечними упрочняющими сталевими стрижнями, розташованими всередині стінки труби. У даній роботі використовується нелінійний аналіз квадратних стовпчиків CFSST при осьовому стисненні. Тривимірна нелінійна модель кінцевого елемента (FE) розроблена з використанням ABAQUS, в яку включені нелінійне поведінку матеріалу і посилені кутові властивості стали. Досягнуто близьке згоду між результатами випробувань і FE в термінах навантаження і деформації.

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Section: �� mentioning

confidence: 99%

Nonlinear analysis of concrete-filled steel square tube strengthened by internal transverse stiffened bars under axial compression

Li¹

2017

Funct.Mater.

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“…The concrete infill is confined by the steel tube, resulting in a triaxial state of compression and increasing the strength and ductility of the concrete. On the other hand, the concrete core improves the local and global buckling capacity of the steel tube (Zhao et al [1]). Given these merits, CFST has been widely used in columns, piers, and arches where compression is dominant (Zhong [2], Bradford et al [3], Roeder et al [4], Pi et al [5]).…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Concrete-Filled Steel Tubular Arches With Corrugated Steel Webs

Gao¹,

Su²,

Xia³

et al. 2014

Volume 10 Number 1

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Concrete-filled steel tubular (CFST) arches with corrugated steel web (CSW) are a new developing type of arches, which combine the high strength of CFST and good shearing resistance of CSW. This paper studies the behaviour of CFST arches with CSW (or CFST-CSW arches) under in-plane and out-of-plane loading conditions. A series of experiments was conducted. The displacement and strain of CFST-CSW arch models under different loading schemes were measured. These experiments enabled the direct assessment of the load-deflection and failure mode of the CFST-CSW arches. The effectiveness of this new arch type verified by comparison of a reinforced concrete arch model with CSW in terms of the ultimate load and failure mode.

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“…It involves the use of two concentrically placed steel tubes that is filled with concrete in between. This type of composite structure has advantages over other steel-concrete composite structures in the follow aspects: 1) the steel tubes can be directly used as permanent framework to the concrete filler; 2) The steel tubes provide confinement to the concrete filler while the infill of concrete can reduce the likelihood of local buckling of steel tubes (Zhao et al, 2010a).…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of UHPC filled tube columns against blast loads

Zhang¹,

Wu²

2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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During the past decades, the use of concrete filled double skin steel tube (CFDST) members has gained much attention in the construction industry due to its beneficial properties such as light weight, high strength and excellent ductility. Many studies have discussed the behaviour of normal strength concrete filled CFDST member under a variety of load conditions; however, the knowledge of UHPC filled CFDST member is relatively lacking. This paper presents a numerical study on the ultra-high performance concrete filled double-skin tubes subjected to blast loading. Numerical models were developed in LS-DYNA and then validated against recently obtained experimental data.

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Concrete-filled Tubular Members and Connections

Cited by 72 publications

References 0 publications

Nonlinear analysis of concrete-filled steel square tube strengthened by internal transverse stiffened bars under axial compression

Nonlinear analysis of concrete-filled steel square tube strengthened by internal transverse stiffened bars under axial compression

Experimental Study of Concrete-Filled Steel Tubular Arches With Corrugated Steel Webs

Numerical simulation of UHPC filled tube columns against blast loads

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