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About 10,000 papers for “Structural Load-Bearing Analysis”

CALCULATION AND ANALYSIS OF LOAD - BEARING STRUCTURAL ELEMENTS OF HANGAR

Marko Abramović · Repository of the University of Slavonski Brod · 2025

U ovom završnom radu analizira se čelik kao materijal i razni čelični profili za potrebe konstrukcije hangara. Istražilo se koje su vrste čeličnih profila, te koje su najbolje osobine i svojstva materijala uz jednostavnost i dostupnost nabave. Neizostavne stavke u odabiru i analizi čeličnih profila su razina opterećenja koju pojedini profil može podnijeti te dostatnost potrebnim zahtjevima poput visine, ulaznog i unutarnjeg prostora. Opterećenja koje konstrukcija mora podnijeti odnose se na vremenske uvijete (snijeg), pokrov te krovne instalacije. CAD program SolidWorks korišten je za izradu konstrukcije čeličnog hangara dimenzija 24x12 m i unutarnjom raspoloživom visinom od 4,5 m. Odabrana vrsta čelika je konstrukcijski čelik S235JR.U radu se ispituje cijela konstrukcija na pojednostavljen način proračuna metodom konačnih elemenata da bi se izračunalo naprezanje, progib i momenti savijanja. Izračun konstrukcije je u preporučenim granicama te je ista izvediva i sigurna za izradu.

Cited by 0

Multi-material topology optimization of structural load-bearing capacity using limit analysis

Leyla Mourad, Jérémy Bleyer, Romain Mesnil et al. · Journal of Theoretical Computational and Applied Mechanics · 2025

We extend the problem of finding an optimal structure with maximum load-bearing capacity to the case of multiple materials. We first consider a reinforcement optimization case where the structure consists of a fixed background matrix material with given strength properties and optimize the reinforcement topology within this material. We discuss the use of various isotropic and anisotropic strength criteria to model the reinforcing phase, including reinforcements with discrete orientations. In a second time, we investigate a bi-material formulation where we optimize the topology of two material phases simultaneously. Various choices for the material strength conditions are proposed and we apply this formulation to the optimization of pure tensile and compressive phases of a single material. In all cases, two optimization variants are proposed using concepts of convex optimization and limit analysis theory, namely maximizing the load-bearing capacity under a fixed volume constraint or minimizing the volume under a fixed loading. Both problems are convex and a penalization procedure is proposed. The underlying problems can be solved using conic programming solvers. Illustrative applications demonstrate the versatility of the proposed formulation, including the influence of the selected strength criteria, the possibility to obtain structures with members of fixed orientation or structures with different importance granted to tensile and compressive regions. Finally, we also draw a parallel with the generation of strut-and-tie models for the analysis of reinforced concrete structures.

Cited by 1Open access

Load analysis of roof photovoltaic arrays and evaluation of structural bearing capacity

Mo Li, Guo’an Wei · 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022) · 2022

As a clean energy source, solar energy has been mainly applied to solar power generation with broad application prospects. Due to the present tense situation of land use, solar power generation generally resorts to the existing buildings for the power generation-building integration. For the buildings with newly added photovoltaic power generation equipment, whether the existing buildings meet the relevant bearing capacity requirements after the addition of equipment loads should be checked. The load calculation for photovoltaic power generation equipment has not been specially expounded in any national code. Therefore, the design standards used are varied. In this study, a relatively conventional load calculation method and an evaluation method for buildings’ bearing capacity were proposed after comparing the calculation results by reference to domestic (Chinese) and foreign existing design experience and relevant codes currently in force.

Cited by 1

LOAD-BEARING CAPACITY ANALYSIS FOR STRUCTURAL COLD-FORMED MEMBERS SUBJECTED TO CENTRAL COMPRESSION

NPO «SCAD Soft», Anatoly V. Perelmuter, Vitalina Yurchenko · Bulletin of Odessa State Academy of Civil Engineering and Architecture · 2021

Abstract. The main purpose of the research was a deep analysis and verification of the consistency and completeness of the design code relating to calculation of load-bearing structural members made from cold-formed profiles. The work has been done in close connection with the implementation on the territory of Ukraine of this design code. The article has discussed and investigated the load-bearing capacity of structural members made of cold-formed profiles subjected to the action of central compression. A system of constraints has been presented, in which the strength and buckling constraints for thin-walled cold-formed column members are formulated, taking into account their possible post-buckling behavior, namely, the ability to resist external loads and effects even after the occurrence of the local buckling and/or distortional buckling phenomenon. The performed load-bearing capacity investigation has shown that for the mono-symmetric cold-formed profiles, the flexural-torsional buckling is determinative. For such cold-formed profiles, the effect of the overall dimensions ratio (flange width to web height) on the load-bearing capacity of cold-formed profiles has been estimated. It has been shown that for the same cross-sectional area the load-bearing capacity of a column structural member made from cold-formed profile and subjected to axial compression can be significantly increased by assigning an optimal ratio of flange width to web height. The paper also has presented the results of the load-bearing capacities for the structural cold-formed members subjected to central compression, calculated according to the design standard DSTU-N B EN 1993-1-3: 2012 and according to the design code DBN V.2.6-198: 2014. It has been shown that in some cases the difference in the assessment of the load-bearing capacity for such structural cold-formed members reached 25%. A comparison of the load-bearing capacities for the action of the central compression has been made for structural cold-formed members made from a C-shaped profile and with a composite section of two C-shaped profiles. It has been shown that the load-bearing capacity of the structural cold-formed member of the composite section exceeds the load-bearing capacity of the member with single C-shaped profile by more than 3 times, while cross-section areas of these structural members differ only doubly.

Cited by 0Open access

Structural Optimization and Load-bearing Reliability Analysis of Small Gear Transmission Mechanical Equipment

Han Lifen, Luo Pinger, Xu Lan · Theory and Practice of Science and Technology · 2025

This study investigates the structural optimization and load-bearing reliability of small gear transmission mechanical equipment under complex working conditions. With the rapid advancement of precision manufacturing and miniaturized mechanical systems, small-scale gear drives are widely utilized in automation, robotics, and micro-mechanical applications. However, their compact structure and high torque density present challenges in ensuring mechanical stability, transmission accuracy, and service life. This paper combines finite element analysis, multi-objective optimization, and reliability evaluation methods to explore the influence of geometric parameters, material properties, and loading modes on the overall mechanical performance. The optimized model achieves an average reduction of 18.6% in stress concentration and an improvement of 23.4% in fatigue life compared with the original structure. The findings provide a theoretical and methodological foundation for the lightweight design and performance enhancement of small-scale gear transmission systems.

Cited by 0Open access

Reliability-based structural analysis of a bucket wheel excavator's load-bearing steel structure

Ana Petrović, Nikola Momčilović, Simon Sedmak · Procedia Structural Integrity · 2022

Structural analysis of large structures such as bucket wheel excavators (BWE) are generally performed using the finite element analysis and assessed according to the portion of the material's yielding limit. Consequently, a structure is evaluated just by the maximum stress at the specific location. In order to address the whole structural response of the object, this paper introduces a reliability-based structural evaluation presented on a case study of the BWE SchRs 630. Although the BWE reliability has been explored in literature, most of the research was based on data obtained from failure of systems and structure, over the years. Nevertheless, this investigation is dividing the pure structural from the system failure by mapping and analyzing the specific structural zones of the BWE. Finite element method obtained randomized stresses (i.e., D – demand of the structure) in a structure are categorized as independent variables and modeled using probability density function. The same is performed in case of the criterion – yield strength of the structure's material (i.e., C – capacity of the structure). Furthermore, yield strength distribution itself is evaluated according to the industry's practice meaning that mean value of the yield stress is to be reduced when used as a criterion for the stress assessments. Therefore, a margin function is analyzed according to the equation: M = C – D. Consequently, the structure is assessed as a whole through the introduction of the reliability index based on stresses. Such evaluation could enable comparison between the corresponding and similar structures in terms their structural response in more holistic manner.

Cited by 2Open access

Theoretical and Experimental Analysis of Structural Properties of Load-Bearing Components of Thermonuclear Tokamak Installations

Reznikov, Dmitry · BiblioBoard Library Catalog (Open Research Library) · 2019

The chapter presents the results of research carried out in Mechanical Engineering Research Institute of the Russian Academy of Sciences that were focused on validation and application of design diagrams, methods and systems for measuring stresses under the modes of Tokamak instillation cooling and management of electromagnetic fields during startups. The examples of tensometric systems and results of measurements of stresses under cryogenic temperatures and strong magnetic fields as well as results of analysis of the states of stresses and strains of structurally heterogeneous components of load-bearing and conductive structures are presented. Operation conditions and limit states of Tokamak components are considered. Results of research summarized in the chapter demonstrate the correctness of the adopted design solutions, which result in a relatively low level of local stresses in the load-bearing components of the thermonuclear installations.

Cited by 0Open access

Analysis and design of the characteristic load-bearing structural elements of multi-storey residential building

Durcik, Tomaž · Repository of the University of Ljubljana (University of Ljubljana) · 2025

V magistrski nalogi na primeru večetažne armiranobetonske stanovanjske stavbe v Ljubljani prikažemo postopek analize in projektiranja tipičnih nosilnih elementov konstrukcije v skladu z veljavnimi Evrokod standardi. Navpično nosilno konstrukcijo stavbe tvorijo stene, ki potekajo od nivoja temeljev do vrha stavbe in so postavljene v dveh pravokotnih smereh, ter stebri v pritličju, postavljeni po obodu stavbe. Etažne in strešna konstrukcija so izvedene kot gladke masivne plošče, ostrešje pa je leseno. Na podlagi arhitekturne zasnove stavbe izdelamo računski model nosilne konstrukcije v programu Sofistik, s katerim izvedemo statično analizo in dimenzioniranje. Pri tem se najprej osredotočimo na etažno konstrukcijo nad pritličjem. Na podlagi rezultatov analize opravimo vse potrebne kontrole za zagotavljanje ustrezne nosilnosti in uporabnosti. Za potrebe potresne analize računski model konstrukcije nekoliko prilagodimo in sicer upoštevamo redukcijo upogibne in strižne togosti navpičnih elementov. Sledi dimenzioniranje izbrane tipične stene na kombinacijo učinkov vplivov za potresna projektna stanja. Kot rezultat postopka dimenzioniranja za analizirano etažno konstrukcijo in steno izrišemo armaturne načrte.

Cited by 0Open access

The Backward Analysis of the Stressed State Estimates of the Load-Bearing Structural Components of Engineering Objects

S. V. Doronin, E. M. Reizmunt · Journal of Machinery Manufacture and Reliability · 2017

A technique for the backward analysis of the analytical and numerical estimates of the stressed state that logically explains the difference in the estimates (consequences) by formulating a list of plausible factors (causes) followed by the systemization and generalization of the latter is proposed. The application potential of the backward analysis is examined by examples of a number of widely used structurally complicated load-bearing components of machines and equipment.

Cited by 1

Accompanying dataset for the paper "Multi-material topology optimization of structural load-bearing capacity using limit analysis"

Mourad, Leyla, Bleyer, Jeremy · Zenodo (CERN European Organization for Nuclear Research) · 2024

This dataset contains simulation results supporting the following paper: Mourad, L., Bleyer, J., Mesnil, R., Nseir, J., Sab, K., & Raphael, W. (2025). Multi-material topology optimization of structural load-bearing capacity using limit analysis. Journal of Theoretical, Computational and Applied Mechanics - https://doi.org/10.46298/jtcam.12427 Simulation code The code used to generate the simulation results can be found at demos/topology_optimization · master · navier-fenics / fenics-optim · GitLab Dataset description Scripts Jupyter notebook and raw data associated with Figures 9 and 15 are available in the scripts. MBB example Reinforcement optmization of the MBB example for various reinforcement strength criteria: Fig.5a: MBB_beam/reinforcement_vonMises_fc_1.0_ft_1.0 Fig.5b: MBB_beam/reinforcement_fc_1.0_ft_1.0 Fig.5c: MBB_beam/reinforcement_no_compression_fc_1.0_ft_1.0 Fig.5d: MBB_beam/reinforcement_orthogonal_fc_1.0_ft_1.0 Bi-material load-maximization of the MBB example Fig.6a: MBB_beam/rankine_vonMises_frac_0.2 Fig.6b: MBB_beam/rankine_L1Rankine_frac_0.2 Bi-material load-maximization of the MBB example with tension/compression splitting for various volume fractions Fig.7a: MBB_beam/l1rankine_l1rankine_frac_0.05 Fig.7b: MBB_beam/l1rankine_l1rankine_frac_0.1 Fig.7c: MBB_beam/l1rankine_l1rankine_frac_0.2 Fig.7d: MBB_beam/l1rankine_l1rankine_frac_0.3 Bi-material load-maximization of the MBB example with discrete orientations for the tensile phase Fig.8a: MBB_beam/fc_1.0_ft_1.0_0_deg Fig.8b: MBB_beam/fc_1.0_ft_1.0_30_deg Fig.8c: MBB_beam/fc_1.0_ft_1.0_45_deg Fig.8d: MBB_beam/fc_1.0_ft_1.0_90_deg Bridge example Symmetric strengths fc=ft=1 Fig.11a: bridge/frac_02_bimaterial_fc_1.0_ft_1.0 Fig.11b: bridge/frac_02_single_material_fc_1.0_ft_1.0 Asymmetric strengths fc=1, ft=10 Fig.12a: bridge/frac_02_bimaterial_fc_1.0_ft_10.0 Fig.12b: bridge/frac_02_single_material_fc_1.0_ft_10.0 Asymmetric strengths fc=1, ft=10 Fig.13a: bridge/frac_02_bimaterial_fc_10.0_ft_1.0 Fig.13b: bridge/frac_02_single_material_fc_10.0_ft_1.0 Bridge example with varying density-cost $\omega$ in the case fc=ft=1 Fig.14a: bridge/bimaterial_fc_1.0_ft_1.0_cost_0.1 Fig.14b: bridge/bimaterial_fc_1.0_ft_1.0_cost_0.25 Fig.14c: bridge/bimaterial_fc_1.0_ft_1.0_cost_0.5 Fig.14d: bridge/bimaterial_fc_1.0_ft_1.0_cost_0.75 Fig.14e: bridge/bimaterial_fc_1.0_ft_1.0_cost_0.9 Deep beam example Deep beam example with inclined reinforcements (bi-material) Fig. 17a: deep_beam/muttoni_bivolmin_iso Deep beam example with orthogonal reinforcements (bi-material) Fig. 18a: deep_beam/muttoni_bivolmin_ortho einforcement optimization of the deep beam exampl Fig. 19a: deep_beam/muttoni_reinfvolmin_iso Fig. 19b: deep_beam/muttoni_reinfvolmin_ortho JTCAM Paper Abstract We extend the problem of finding an optimal structure with maximum load-bearing capacity to the case of multiple materials. We first consider a reinforcement optimization case where the structure consists of a fixed background matrix material with given strength properties and optimize the reinforcement topology within this material. We discuss the use of various isotropic and anisotropic strength criteria to model the reinforcing phase, including reinforcements with discrete orientations. In a second time, we investigate a bi-material formulation where we optimize the topology of two material phases simultaneously. Various choices for the material strength conditions are proposed and we apply this formulation to the optimization of pure tensile and compressive phases of a single material. In all cases, two optimization variants are proposed using concepts of convex optimization and limit analysis theory, namely maximizing the load-bearing capacity under a fixed volume constraint or minimizing the volume under a fixed loading. Both problems are convex and a penalization procedure is proposed. The underlying problems can be solved using conic programming solvers. Illustrative applications demonstrate the versatility of the proposed formulation, including the influence of the selected strength criteria, the possibility to obtain structures with members of fixed orientation or structures with different importance granted to tensile and compressive regions. Finally, we also draw a parallel with the generation of strut-and-tie models for the analysis of reinforced concrete structures.

Cited by 0Open access

The load-bearing mechanism of plant wings: A multiscale structural and mechanical analysis of the T. tipu samara

Zeneve Ezra, Liat Levavi, Benny Bar‐On · Acta Biomaterialia · 2022

Spinning winged fruits ("helicopter" samaras) generate significant lift forces at relatively low velocities, which enable the wind to disperse them across long distances. The biological material of the samara sustains the aerodynamic loadings and maintains the physical shape of the samara in the air via a yet unknown load-bearing mechanism. Here, positing that this mechanism fundamentally originates from the macro-to-microscale structural and mechanical characteristics of the samara, we use sub-micron computer tomography, electron microscopy, and multi-scale mechanical experiments to map the structural and mechanical characteristics of the tipu tree (Tipuana tipu) samara down to the micrometer length scale. Then, using theoretical models, we characterize the multiscale structural-mechanical principles of the samara and use these principles to disclose the underlying load-bearing mechanism. We found that the structural motifs of the tipu tree samara are closely analogous to various other types and forms of winged fruits, suggesting that this load-bearing mechanism is widespread in plant wings. The structural-mechanical principles governing the samara bear unconventional design concepts, which pave the way toward the development and engineering of small-scale wing elements for miniature aviation platforms with specialized mechanical capabilities. STATEMENT OF SIGNIFICANCE: The biomaterial of plant wings grants them mechanical resistance to flight forces during wind dispersal. "Helicopter seeds" demonstrate an intricate load-bearing mechanism that spans three structure-functional scales of their biomaterial. This mechanism appears widespread in plant wings and may promote novel micro-engineering design guidelines for futuristic flight materials and small-scale aviation platforms.

Cited by 5Open access

Reuse of load-bearing structural concrete frames. : An analysis of the opportunities and challenges associated with future concrete buildings.

Atterhed, Linus, Folkesson, Karl · KTH Publication Database DiVA (KTH Royal Institute of Technology) · 2025

En stor andel av Sveriges totala utsläpp av koldioxid kan kopplas till bygg- ochanläggningssektorn, där betongproduktion är en av de mest klimatbelastande delarna. Återbrukav bärande betongstommar lyfts i dag fram som en möjlig lösning för att minska utsläpp ochfrämja cirkulärt byggande, i linje med EU-taxonomins miljömål.Syftet med denna studie är att identifiera möjligheter och hinder som finns för ett ökat återbrukav betongstommar inom svensk bygg- och fastighetssektor. Arbetet bygger på enlitteraturstudie och en kvalitativ intervjustudie med sex yrkesverksamma från olika delar avbyggprocessen.Resultatet visar att återbruk har stor potential, men att dagens regelverk, ansvarsfördelning ochbristande kunskap försvårar implementeringen. Samtidigt finns möjligheter i form av nyaaffärsmodeller, tidig projektering för demontering samt ökad medvetenhet om klimatnyttan.Ekonomiska incitament och styrning från kommuner lyfts också fram som centrala för attfrämja återbruk av betongstommar.Studien visar att återbruk av betongstommar kan bli en viktig del i omställningen till en merhållbar byggbransch, förutsatt att det sker ett förbättrat samspel mellan affärsmässigaincitament, regulatoriska krav och tidig samverkan i projekten. Framtida affärsmodeller börtydliggöra ansvar, kvalitet och spårbarhet, samtidigt som digitala materialbanker ochflexibilitet i CE-märkning kan stödja implementationen. För att återbruk ska bli en etableradnorm krävs ett helhetsgrepp som omfattar såväl teknisk projektering som ekonomiska ochpolitiska styrmedel.

Cited by 0Open access

Structural Analysis and Simulation of Innovative Composite Building Consisting of LGS and Load Bearing Ferrocast Wall Panels Using FEM

KULKARNI, Mrudula sanjay, PURANDARE, Arun Narhar, SHINDE, Sumant Nivrutti et al. · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · 2023

In the construction of any structure, the most important factor considered today are cost of construction and ability of the building to resist loads and earthquakes. Research is going on about various precast composite technologies to get a structurally strong system yet with reduced time and cost of construction, thus making it an affordable structural system for modular construction. Considering these factors, light gauge steel or commonly known as cold formed steel and precast ferrocement composite structures are gaining popularity in the Indian construction industry. This article is an attempt to review structural behaviour of innovative use of LGS and Ferrocement, sandwich panel composite construction. In the present research work, Finite Element analysis is done for typical residential building made of precast ferrocement panels combined with light gauge steel composite structure. Finally, stresses in the ferrocement element are checked with experimental values thus determining the load carrying capacity of the structure subjected to dead, live and seismic loads. Overall proving this load bearing composite construction system to be more effective with respect to speed of construction, cost of construction and affordability at the same time enhanced structural performance. Thus, a practically enhanced solution to substitute the conventional RCC structure is possible using this LGS Ferrocast/ferrocement composite construction technology. The assumption for this composite technology is that all ferrocement structural components are factory made in custom sizes under strict quality control as to achieve desired permissible stresses.

Cited by 1Open access

Numerical Analysis of the Load-Bearing Capacity of a Thin-Walled Perforated Beam Cooperating with Chipboard Panels in a Structural System

Arkadiusz Denisiewicz, Tomasz Socha, Krzysztof Kula et al. · Materials · 2025

This paper presents the results of numerical investigations focused on a structural assembly consisting of thin-walled perforated steel beams joined to a particleboard panel. The simulations were performed using the finite element method (FEM), incorporating both physical and geometric nonlinearities, along with detailed modeling of contact interactions between the beams and panel elements. The primary objective was to establish load-capacity curves for the central beam in structural systems with spans ranging from 3 to 6 m, and to identify failure modes associated with different span lengths. To verify the reliability and accuracy of the numerical approach, laboratory tests were conducted on two representative configurations with spans of 3 and 6 m. Additionally, the mechanical properties of the beam materials were evaluated using samples extracted from the tested elements. The experimental findings confirmed the numerical model's accuracy and its suitability for analyzing structural responses across the full span range considered.

Cited by 1Open access