Steel silo failure and reinforcement proposal

Zaccari, N.; Cudemo, M.

doi:10.1016/j.engfailanal.2016.02.009

Cited by 10 publications

(8 citation statements)

References 1 publication

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“…Official records of the occurrence of silo collapses are scarce, since the companies responsible for the design, manufacture, and assembly do not disclose the cases, to protect their commercial brands, besides that, multiple accidents have been registered across the whole national territory. It should be noted that the failure rate in silos is much higher than that found in other industrial buildings (Livaoglu & Durmus¸ 2016;Zaccari & Cudemo, 2016) mainly due to design errors, execution errors, improper use, and/or absence of maintenance. These failures can consist of minor localized damage until the complete collapse of the structure.…”

Section: Introductionmentioning

confidence: 78%

“…The EN 1991-4 norm, is one of the few that presents definitions about the geometry of the flow channel and the pressures of the wall under eccentric discharge (Sielamowicz et al, 2010). Zaccari and Cudemo (2016) state that the description of asymmetric pressures contained in the European normative code EN 1991-4 enables the development of relatively realistic calculations for this event and point out that, for the old silos (not designed based on the updates to the normative codes), a possible reinforcement of the 'husk' can be considered as a preventive measure to reduce the risk of silo failure.…”

Section: Abnormal Loading and Unloadingmentioning

confidence: 99%

“…In general, to avoid this type of instability it is necessary, in the design phase, to characterize the pressure distribution caused by the eccentric flow of products in the best way possible (Zaccari & Cudemo, 2016), and it should be noted that a project elaborated conservatively under concentric discharge is far from safe under eccentric discharge. This pressure pattern completely surpasses the safety coefficient that the silo would present under concentric discharge and would cause a very early elastic buckling failure.…”

Section: Abnormal Loading and Unloadingmentioning

confidence: 99%

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The throat of Brazilian Agricole production: The breakdown of vertical silos

Dornelas

Ayres

Rodrigues

et al. 2021

RSD

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In the current world economical conjecture, the accentuated growth in Brazilian production and exportation in the Agro-Food industry sets the country as a central role in the field. Implementing storage units in Agricole properties and industrial sites constitutes a necessary premise to keep the country as a competitive member in the global scenery. The vertical silos present themselves as alternative solutions. However, a great sum of the existent silos does not match the ideal conditions of operation due to the insufficient knowledge of the pressure variations that happen in time and inner space, of the flow, and the variables that affect the behavior of the stored products. Such situations have contributed to accidents and breakdowns in silos. With this increasing demand for the storage capacity in silos, the full understanding of the structural functioning, failure prevention, and optimization of the structural components became of great importance. Thus, this work aimed to present some events that happened in the country in the last years and bring the main causes of structural failures, highlighting the failures that are directly related to the type of flow in the interior of the silo; wacky charging and/or discharging; change in the properties of the stored products (specified weight, actual inner friction angle, friction angle against the wall) and instability in the support columns. It follows that a great number of accidents in these structures could have been avoided or reduced with previous knowledge, from the silo designer and those responsible for the operation, about the most important occurrences in silos.

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Section: Introductionmentioning

confidence: 78%

Section: Abnormal Loading and Unloadingmentioning

confidence: 99%

Section: Abnormal Loading and Unloadingmentioning

confidence: 99%

See 1 more Smart Citation

The throat of Brazilian Agricole production: The breakdown of vertical silos

Dornelas

Ayres

Rodrigues

et al. 2021

RSD

View full text Add to dashboard Cite

show abstract

“…When the load resisting capacity reaches a critical load value, the structure deforms dramatically and lose its capability bear weight. It is called as buckling load stage of force [3].Metal silos are now manufactured in a variety of dimensions and shapes, such as rectangular, circular, and square silos, squat silos, and high-rise cylinders, silos with smooth walls, stiffened walls built from either vertically or horizontally corrugated sheets with orthogonal stiffeners, or patented special wall forms, ground-supported silos, and skirted or column-supported silos. Steel silos and bunkers can be structural, constructed of steel plates, or sheet metal, constructed plain or corrugated metal.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of Steel Silo using STAAD.ProV8i

Rehman,

Wang

2023

Babylonian Journal of Mechanical Engineering

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Generally silo is a storage structure for heavy bulk materials such as cement coal, wood, food products and saw dust. Its design involves materials, geometry, and structural considerations. This research considered a special structure steel silo treated with myriad conventional and unconventional loading conditions, varied from some tonnes to many of tonnes which findings in uncommon modes of failure. Silo Specifications of 14m height and 3m diameter was designed with section ISMB 300 and ISA 70x70x10mm as per Indian standards. In addition, the plan and section of the silo wad done by the AutoCADD 2018 software. modelling, dynamic analysis and designs were completer in STAAD PRO V8i.Besides, the silo was designed as per Indian standards IS 800.The maximum axial force and shear force of the steel silo were 15.9 KN and 0.037 KN respectively. The aim of this paper was to determined the Plate stress, contour lines, and critical support of the silo, beam end force summary and steel take off of the silo structure. Generally silo is a storage structure for heavy bulk materials such as cement coal, wood, food products and saw dust. Its design involves materials, geometry, and structural considerations. This research considered a special structure steel silo treated with myriad conventional and unconventional loading conditions, varied from some tonnes to many of tonnes which findings in uncommon modes of failure. Silo Specifications of 14m height and 3m diameter was designed with section ISMB 300 and ISA 70x70x10mm as per Indian standards. In addition, the plan and section of the silo wad done by the AutoCADD 2018 software. modelling, dynamic analysis and designs were completer in STAAD PRO V8i.Besides, the silo was designed as per Indian standards IS 800.The maximum axial force and shear force of the steel silo were 15.9 KN and 0.037 KN respectively. The aim of this paper was to determined the Plate stress, contour lines, and critical support of the silo, beam end force summary and steel take off of the silo structure.

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“…Failure modes of silos, such as the yielding and buckling of cylindrical shells [7], the main causes and several phenomena leading to collapse [28,29]. f.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Structural Behavior, Vulnerability, and Risk of Industrial Silos: State-of-the-Art and Recent Research Trends

Ruggieri

Uva

2022

Applied Sciences

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This paper presents a literature compendium about the main studies on the structural behavior, vulnerability, and risk of industrial silos, as one of the most important players of different industrial processes. This study focuses on the main scientific works developed in the last decades, highlighting the more notable issues on circular steel silos as the most widespread typology in practice, such as the content–container complicated interaction, the structural and seismic response, and the several uncertainties in the design and assessment processes. Specifically, this paper proposes a near-full state-of-the-art on (i) the behavior of silos under different kinds of loads, ordinary and extreme, (ii) the effects of imperfections and the interacting structures (e.g., ring beams, supporting structures), (iii) the stored material properties, the relevant uncertainties and the impact on the silo behavior, (iv) the possible failure modes given by the focused structural configuration and the stored materials, and (v) assessment and risk mitigation strategies. Throughout the text, some considerations are provided in order to summarize the more recent research trends about steel silos and to highlight the still open issues on the risk and vulnerability reduction of these kinds of structures.

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Steel silo failure and reinforcement proposal

Cited by 10 publications

References 1 publication

The throat of Brazilian Agricole production: The breakdown of vertical silos

The throat of Brazilian Agricole production: The breakdown of vertical silos

Analysis and Design of Steel Silo using STAAD.ProV8i

Assessment of Structural Behavior, Vulnerability, and Risk of Industrial Silos: State-of-the-Art and Recent Research Trends

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