Shear stops forces distribution analysis in combined floors of multi-storey buildings

Gimranov, Linur; Fattakhova, Alsou

doi:10.1088/1757-899x/890/1/012080

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…The analytical calculation was compared with the results obtained in the computing using the software package. The reliability of the results obtained by the numerical experiment was described in previously published articles [9,10].…”

Section: Discussionmentioning

confidence: 86%

Calculations of the rigidity and the strength of concrete filled steel deck diaphragms

2021

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Calculations of horizontal loads such as wind are required even for low-rise buildings. With stores number increasing their influence increases. The horizontal loads are perceived by the flooring discs. Steelreinforced concrete floors with profiled decking are most often used in steel frame buildings. Floor slabs and frame’s joint work is ensured by shear studs. The article discusses a shear studs’ stress determining method from horizontal load. There are different slab supporting variants: slap supported on two sides and along slab's perimeter. The goal was to determine shear stress in each flexible stop. The tasks were solved by calculating and by computing. Then the results were compared. Therefore, the resulting formula allows determining shear stresses not only in square slab but in rectangular ones too. Shear stress knowledge in the studs allows to determinate frames’ displacements by horizontal loads. Frame displaces relative to the floor slab due to studs shear and flexibility. The derived displacements determining formula takes into account shear deformations and anchor compliance in different directions. Herewithin the article, proposed displacements formula is not checked, but only the components determining a method is proposed.

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Section: Discussionmentioning

confidence: 86%

Calculations of the rigidity and the strength of concrete filled steel deck diaphragms

2021

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“…Пренебрегая этими деформациями, получаем выражение (6). В исследовании [10] был проведен подобный эксперимент в программном комплексе Ansys, позволяющем моделировать реальную работу соединения. К участку плиты размерами 400×300 мм, опертому на полку двутавра 60Б2, поэтапно была приложена нагрузка в 50 кН (рис.…”

Section: рис 1 расчетная схема рамкиunclassified

Determination of the Movements of the Combined Flooring Using Profiled Flooring From Horizontal Loads

Efimov¹,

Gimranov²,

Fattahova

et al. 2021

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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Combined steel-reinforced concrete floors using profiled flooring are the most common solution in buildings with a steel frame. Flexible stops ensure the joint work of the frame and the flooring disks. Deformations of the combined flooring, and therefore of the frame in the horizontal plane, can occur due to the possible appearance of uneven force effects that cause a shift. At the same time, the magnitude of these deformations is influenced by both the level of force influences and the shear stiffness of the flooring disk, as well as the malleability of the flexible stops connecting the latter to the supporting frame. The paper proposes a method for determining the deformations of the flooring disk and the supporting frame from a horizontal load. The problem is considered in which a square floor slab is based on a contour on the crossbars of the frame, but its fixing with flexible stops is provided on two parallel sides. A formula for determining the movements of the frame from the horizontal load is proposed. The displacement of the flooring disk is analytically determined, it is noted how the malleability of flexible stops affects the determination of the final result. Using the example of a numerical experiment, the possibility of using the proposed method is demonstrated. The movement in the flooring disks will allow to assess the rigidity of the frame from horizontal loads without focusing on the deformation of each component of the steel-reinforced concrete slab. In addition, it will help to use materials and resources more efficiently by optimizing design solutions.

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Flexible stop’s force determining method in a combined plate using profiled flooring

Gimranov

Fattakhova

2021

Vestnik MGSU

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Introduction. Steel-reinforced concrete floors with profiled decking are most often used in steel frame buildings. The joint work of the floor slab and tertiary beam is ensured by shear studs. The article discusses a shear studs stress determining method from horizontal load. Studs are placed along the slab’s perimeter. The method based on the bolts’ group calculation analogy. Materials and methods. Based on the bolts group calculation design expressions were derived to determine the force in shear studs. To determine the obtained values reliability a finite element calculation was performed using the Lira-CAD software package. Different aspect ratios slabs samples were considered. The solution’s convergence was determined by various methods for a plate with 0.6 × 0.6 m dimensions with a small number of studs, after which the proposed solution convergence was studied for real dimensions of plates with a large number of flexible stops. Results. The resulting formula allows determining the stress in each flexible stop, in particular in the most loaded corner studs. The computer calculation was performed for the proposed method clarity and using possibility. The method’s use restriction was determined. In addition, the shear studs’ geometric characteristic’s definition explanations are given. Conclusions. The proposed calculation method allows to determinate any structural section’s shear stud’s stress. Therefore, it allows to choose stud’s optimal cross-section area or check its bearing capacity in the existing buildings and structures floors. Moreover, the stress value allows to determine the stud’s and a whole slab’s deformations.

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Shear stops forces distribution analysis in combined floors of multi-storey buildings

Cited by 3 publications

References 8 publications

Calculations of the rigidity and the strength of concrete filled steel deck diaphragms

Calculations of the rigidity and the strength of concrete filled steel deck diaphragms

Determination of the Movements of the Combined Flooring Using Profiled Flooring From Horizontal Loads

Flexible stop’s force determining method in a combined plate using profiled flooring

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