Bending of Multi‐Bin RC Cylindrical Silos

Prato, Carlos A.; Godoy, Luis A.

doi:10.1061/(asce)0733-9445(1989)115:12(3194)

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…Therefore, the behavior of grouped silos differs from that of a single silo. Nevertheless, the individual silo cells of such groups are usually analyzed as if isolated from each other, with structural interaction being ignored [1,4].…”

Section: Introductionmentioning

confidence: 99%

“…In the literature, among the above-mentioned problems specified in the standards, bending moments due to the structural continuity in groups of reinforced concrete silos in interstice and internal loading cases are investigated mostly and many methods were offered for calculating these bending moments [1,4,[8][9][10][11][12]. In these studies, unit strip models were used rather than complete models covering the entire heights of the grouped silos.…”

Section: Introductionmentioning

confidence: 99%

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The behavior of the RC grouped silos under earthquake excitation according to different internal loadings

Demir¹

2023

JSEAM

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Reinforced concrete grouped silos-commonly employed in the industry to store granular materials- also needs to be designed in earthquake-prone areas. Silos experience a higher rate of structural failures than the majority of other types of construction. And one of the main causes of silo failure is the dynamic overpressures caused by stored materials under seismic loads. However, the principles determining loads on such structures and requirements for their structural analysis aren’t precisely specified in relevant codes of design. Instead of emphasizing grouped silos that interact strongly, the present dynamic design only concentrates on a single silo which can lead to unrealistic solutions for grouped silos. Therefore, it is necessary to determine the seismic behavior of grouped silos more accurately. This paper aims to investigate the seismic behavior of RC on-ground grouped silos compared to single ones by using a numerical model because of its adaptability, which allows for the analysis of a wide range of silo problems. In this context, a three-dimensional finite element model, that considered the interaction between stored material and silo wall as well as the continuity of the silo walls, was performed using ANSYS software. Two different aspect ratios and three different internal loading cases were taken into account for the parametric study to demonstrate their influences on dynamic overpressures and equivalent base shear forces in RC-grouped silos. It is concluded that designing the on-ground slender grouped silos with a high aspect ratio as individual single silos is unreasonable and may produce very low values for the base shear force.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The behavior of the RC grouped silos under earthquake excitation according to different internal loadings

Demir¹

2023

JSEAM

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“…Gruyaert, Belie, Matthys, Nuffel and Sonck [5] investigated the structural stability of horizontal silo wall with straight and L-shaped wall panels experimentally. Prato and Godoy [6] studied on the bending stress of multi-bin reinforced concrete cylindrical silos. Martinez, Alfaro and Doblare [7] compared the induced pressure distribution in metallic silos with different standards.…”

Section: Introductionmentioning

confidence: 99%

Investigation on integrity of existing circular reinforced concrete silo with opening

Lian

Keat

2010

2010 International Conference on Science and Social Research (CSSR 2010)

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This paper presents an investigation on the integrity of an existing circular reinforced concrete cement silo that subjected to a new 600 mm x 600 mm opening. The opening is introduced at the cement silo side wall for airslide installation to improve the aeration system of the silo. Three-dimensional finite element silo model was generated based on the available construction drawings of the existing silo by using SAP 2000 software. The integrity of the silo was investigated through results from stresses distribution, hoop tension forces, shear forces and bending moments focusing on silo wall, wall opening and silo base slab. Assessment of the existing silo capacity is summarized and the results compared with the integrity checks show inadequacy of the silo base slab under the modification work. Besides, high vertical stress concentration at the localised wall opening is expected with adopted safety factor of 1.24.

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A new set of design aids for groups of four cylindrical silos due to interstice and internal loadings

Yüksel

Arıkan

2007

Structural Design Tall Build

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The computation of design forces for reinforced concrete groups of four cylindrical silos requires significant computational effort due to continuity in the walls between adjacent silos. This paper presents a simple but accurate procedure for the computation of design forces acting on groups of four cylindrical silos due to stored materials. In this conjunction, finite element analyses were performed by using eight‐node solid elements for various groups of four cylindrical silos under interstice and internal loadings. The design forces at the prescribed sections of interstice and external walls were computed. The silo wall thicknesses, intersection wall thicknesses and intersection wall lengths of these grouped silos were varied with an extensive parametric study to demonstrate their influences on resultant design forces. Design formulas were proposed and dimensionless design coefficients were derived from the comprehensive series of finite element analyses considering the effect of continuity in the walls. The results were expressed in simplified form, so that the prediction of bending moments, axial forces and shear forces became straightforward for design purposes. In addition, the rigidity of the interstice walls was varied by changing the modulus of elasticity and the redistribution of design forces was investigated. Copyright © 2007 John Wiley & Sons, Ltd.

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Bending of Multi‐Bin RC Cylindrical Silos

Cited by 6 publications

References 3 publications

The behavior of the RC grouped silos under earthquake excitation according to different internal loadings

The behavior of the RC grouped silos under earthquake excitation according to different internal loadings

Investigation on integrity of existing circular reinforced concrete silo with opening

A new set of design aids for groups of four cylindrical silos due to interstice and internal loadings

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