Flexural behavior of concrete-filled steel tubular beam

Shallal, Muhaned A.

doi:10.1109/icasea.2018.8370974

Cited by 6 publications

(6 citation statements)

References 4 publications

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“…When a rectangular steel hollow section of 50×100 mm² with I=416,6666 mm4 was used, the resulting load capacity was higher than when a square hollow section of 60×60 mm² with I=108,0000 mm 4 was used. It is also higher than the circular steel hollow sections with a diameter of ∅60 mm and I=63,6172 mm 4 .…”

Section: Discussionmentioning

confidence: 80%

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Flexural Performance of Composite Ultra-High-Performance Concrete-Encased Steel Hollow Beams

Tu’ma

Aziz

2019

Civ Eng J

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Composite members have been widely used in the construction of medium- and high-rise buildings. The results of the development of a new structural member by experimental investigation of the flexural behavior of hollow composite beams are presented in this paper. This research aims to exploit the properties of composite sections and their strength in developing a new approach for overcoming the problems of service pipes in buildings. A hollow steel section encased fully in concrete is used to form a composite hollow beam. The structural benefit provided by the steel section (composite part) is adopted to increase the stiffness of the member. The hollow part is employed to provide services and economic benefits by reducing the amount of expensive ultra-high-performance concrete (UHPC) used and decreasing the self-weight of the member. The flexural strength of 11 UHPC beams is tested under two-point loads. The variables in this investigation include the type of hollow core mold material and the size, location, and shape of steel hollow sections in the middle and tension zones of the cross-section. Experimental results are compared and discussed. The tested results show that the flexural capacity and stiffness of the UHPC-encased steel hollow beams are 109% and 23.5% higher than those solid beams, respectively.

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Section: Discussionmentioning

confidence: 80%

“…reinforcement, B2: using rolled steel angle sections as reinforcement and B3: using rolled steel channel sections as reinforcement). Results showed that width of the cracks was increased by the absence of shear reinforcement compared to the models with shear reinforcement and failing by crushing the concrete in diagonal tension [4].…”

Section: Introductionmentioning

confidence: 97%

Flexural Performance of Composite Ultra-High-Performance Concrete-Encased Steel Hollow Beams

Tu’ma

Aziz

2019

Civ Eng J

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“…Square and circular hollow tubes have many applications in the area of multidirectional loading due to the uniform geometry along two or more cross-sectional axes. They have uniform strength across the complete structure, which makes them good choices for many structures [ 5 , 6 , 7 , 8 ]. They also have high resistance to torsion.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on the Influence of Stress Concentration on the Flexural Stability of an Aluminium Hollow Tube

et al. 2023

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In recent times, particularly in applications used to build various structures for construction purposes or machines, solid sections have been gradually replaced by hollow sections due to their attractive features such as being light weight and having high specific strength. In the present investigation, an attempt was made to investigate, in detail, the flexural capability of aluminium hollow tubes (AHTs) with square cross-sections. The objective of the investigation was to study the influence of stress concentration on the flexural behaviour of the hollow tube. The stress concentration factor considered in this investigation was holes of various cross-sections and quantities. Three-point bending tests with concentrated loads were conducted on specimens of a hollow tube with different stress concentrations such as circular holes, multiple circular holes, square holes and perforations. The load was applied manually during the bending test with appropriate increments. The bending test was carried out on specimens with support spans of 110, 130, 170 and 200 mm. The output measures of the study were maximum bending load, deflection and flexural stiffness. The output measures were analysed in detail in order to recommend the type and nature of stress concentration in a hollow tube applied to structural applications to ensure the safest workability. The flexural stability of the tube was analysed by experimental and numerical procedures, and the results were validated using an analytical approach. It was found that the results of all the approaches complement each other with a low significance of error. AHTs with a circular hole, multiple circular holes and perforations were observed to have better flexural stability than other AHTs such as AHTs with square hole and plain AHTs.

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“…Because of varying cross sections, making holes for connecting to the other members is unavoidable. The influence of stress concentration can be different for solid and hollow sections [2][3][4]. The type of stress concentration in the structural member subjected to various loads such as axial, bending, and shear greatly influence the performance.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Influence of Stress Concentration on the Flexural Stability of Aluminum Hollow Tube

Radhakrishnan

Khusaibi

Subaihi

et al. 2023

JMES Int. Journal of Mech. Eng. Sc.

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The hollow sections gradually replace solid sections in most structural applications in various engineering fields due to their attractive features, such as lightweight and high specific strength. In this research, one such attempt was made to investigate the flexural capability of aluminum hollow tubes (AHT) with a square cross-section. The research's objective was to study the influence of stress concentration on the flexural behavior of the hollow tube. The role of stress concentration in a structural member was crucial as it may hamper the balance of the entire system and its function. The type of stress concentration considered in the research was through the hole cross-section and quantities. Three-point bending test with concentrated load was conducted on the specimens of a hollow tube with different stress concentrations, such as a circular hole, a square hole, and perforations. The load was applied manually during the bending test. The bending test was carried out on all specimens for various support spans of 110, 130, 170, and 200 mm. The output measures of the study were maximum bending load, deflection, and flexural stiffness. The maximum bending load capacity of around 5.7 kN was observed for AHT with a circular hole with a support span of 110 mm. The maximum deflection measured at the beam mid-span increased rapidly as the aspect ratio increased from 73.33 to 93.33. After that point, the deflection variation was marginal for the increased aspect ratio from 113.33 to 133.33. This was due to the effect spring back effect, which dominated more on the bending behavior at a shorter span between the supports.

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Flexural behavior of concrete-filled steel tubular beam

Cited by 6 publications

References 4 publications

Flexural Performance of Composite Ultra-High-Performance Concrete-Encased Steel Hollow Beams

Flexural Performance of Composite Ultra-High-Performance Concrete-Encased Steel Hollow Beams

Experimental and Numerical Study on the Influence of Stress Concentration on the Flexural Stability of an Aluminium Hollow Tube

Experimental Study on the Influence of Stress Concentration on the Flexural Stability of Aluminum Hollow Tube

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