Relevant bibliographies by topics / Castellated beams

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Academic literature on the topic 'Castellated beams'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 May 2022

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Journal articles on the topic "Castellated beams"

1

Al-Thabhawee, Hayder Wafi. "Experimental investigation of composite steel–concrete beams using symmetrical and asymmetrical castellated beams." Curved and Layered Structures 9, no. 1 (January 1, 2022): 227–35. http://dx.doi.org/10.1515/cls-2022-0019.

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Abstract This study aims to investigate the behavior of concrete slabs acting compositely with symmetrical and asymmetrical castellated beams. Stud connectors are used to connect the concrete slab and steel section. The use of castellated steel beams to build up composite steel-concrete beams is now common practice in building construction. Five simply supported composite beams were examined under two-point loading. Two specimens built up from standard steel beams were used as control specimens and three specimens were built up from castellated steel beams. One of these specimens was built up using a castellated steel beam with an asymmetrical cross-section fabricated from two different standard sections (IPE120/HEA120). The concrete slab of all composite specimens had the same dimensions and properties. The experimental results showed that strength and rigidity were considerably greater for composite castellated steel beams compared to composite beams built up from the parent sections. The ultimate load capacity of a composite castellated beam fabricated from an IPE120 section was 46% greater than that of a composite beam built up using the parent beam, and the ultimate load capacity of a composite castellated beam fabricated from a wide-flanged HEA120 section resulted in an increase of 21% over the parent beam control specimen. The ultimate load capacity of the composite specimen built up using the asymmetrical castellated beam (IPE120/HEA120) achieved increases of 69% and 12%, respectively, compared to the control specimens built up from standard sections.
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Ammar, Hussamalden Alqahar, and Ahmad Jabbar Hussain Alshimmeri. "A Comparison Study between Asymmetrical Castellated Steel Beams Encased by Reactive Powder Concrete with Laced Reinforcement." Key Engineering Materials 895 (August 3, 2021): 77–87. http://dx.doi.org/10.4028/www.scientific.net/kem.895.77.

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The main objectives of this study are to study the enhancement of the load-carrying capacity of Asymmetrical castellated beams with encasement the beams by Reactive Powder Concrete (RPC) and lacing reinforcement, the effect of the gap between top and bottom parts of Asymmetrical castellated steel beam at web post, and serviceability of the confined Asymmetrical castellated steel. This study presents two concentrated loads test results for four specimens Asymmetrical castellated beams section encasement by Reactive powder concrete (RPC) with laced reinforcement. The encasement of the Asymmetrical castellated steel beam consists of, flanges unstiffened element height was filled with RPC for each side and laced reinforced which are used inclined continuous reinforcement of two layers on each side of the Asymmetrical castellated steel beam web. The inclination angle of lacing reinforcement concerning the longitudinal axis is 45. Four specimens with four different configurations will be prepared and tested under two concentrated loads at the mid-third of the beam span. The tested specimen's properties are the First model; unconfined, Asymmetrical castellated steel beam (Reference), while the second, third, and fourth models consist of Asymmetrical Castellated steel beam (web and flange) confined with (RPC) with 19.1, 38.2, and 57.3 mm gap, respectively, between the two beams sections (the upper and lower one). The results of the experimental tests show that the use of RPC enhanced the properties of the castellated beams in all selected conditions despite creating a gap between the castellated beams.
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Hashim, Hayder A., and Alaa H. Al-Zuhairi. "Effect of External Post-Tensioning Strengthening Technique on Flexural Capacity of Simple Supported Composite Castellated Beam." E3S Web of Conferences 318 (2021): 03006. http://dx.doi.org/10.1051/e3sconf/202131803006.

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This research is carried out to study the effect of the external post-tensioning technique on the flexural capacity of simply supported composite castellated beam experimentally. In this research, seven composite castellated beams having the same dimensions and material properties were cast and tested up to failure by applied two concentrated loads at 700 mm from each end. Two external strands of 12.7 mm diameter were fixed at each side of the web of strengthening beams and located at depth 180 mm from top fiber of the section (dps) at each end of the beam. The strands have been tensioned by using a hydraulic jack with a constant stress of 100 MPa. This research aims to study the effect of the strengthening by different shapes of strand profiles of external post-tensioning techniques on the flexural capacity of the composite castellated beam. These beams were divided into three groups. Each group contained two composite castellated beams while 7th composite castellated beam kept without strengthening by external post-tensioning technique As control beam. The first group included two beams with straight strand profile of external Post-tensioning. The second group included two beams with a triangular strand profile of external post-tensioning. The third group included two beams with a trapezoidal strand profile of external post-tensioning. All composite castellated beams were simply supported, and all of them were fully shear connections between the concrete slab and steel girder. All beams included the 16 castellated openings and were stiffened by six stiffener plates welded on the web of castellated beams. Three stiffener plates are welded on each side of the web. Two of these stiffener plates welded at the middle of the beam, and four of them welded at locations under the loads. The experimental results of this research were increasing 5.43% in load capacity of an average of the straight profile of composite castellated beams, increasing 18.92% in load capacity of an average of triangular profile composite castellated beams, and increasing 20.71% in load capacity of the trapezoidal profile of composite castellated beams. All the above results were compared with control beams.
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Wang, Yuhan, Lianguang Jia, and Xuefeng Li. "Investigation on Behavior of Castellated Composite Beams under Fire." MATEC Web of Conferences 175 (2018): 02032. http://dx.doi.org/10.1051/matecconf/201817502032.

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This paper is to study the fire resistance of castellated composite beams. Based on experiment, a reasonable castellated composite beam model is established by using finite element software. The critical temperature of castellated composite beams influenced by hole opening ratio, hole pitch, width-thickness ratio of the web and stiffener have been analyzed. The result shows that stiffener has a great influence on the fire resistance of castellated composite beams, which can increase the critical temperature greatly. The width-thickness ratio of the web has some influence on the buckling behavior of castellated composite beams under fire condition. When width-thickness ratio is higher, the web is more prone to buckling failure. The hole opening ratio and hole pitch have a little influence on the fire resistance of castellated composite beams.
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Pawar, Kirti, and Popat Kumbhar. "Performance Analysis of Castellated Steel I-Beam using FRP Stiffeners." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (February 28, 2022): 1134–42. http://dx.doi.org/10.22214/ijraset.2022.38596.

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Abstract: Castellated beams are now widely used for a variety of structural applications. Castellated beams are the ones which have perforations in their web part. However, these perforations increase stress concentration around the openings, and also get subjected to web post-buckling. To reduce these post-buckling failures and increase the load-carrying capacity, the castellated steel I-beams are provided with different types of stiffeners at various locations. In this paper, the behaviour of a hexagonal castellated steel I-beam (ISMB) under point loading is investigated using carbon fibre polymer (CFRP) strips as stiffeners. Two different types of CFRP strip stiffeners are provided in the transverse direction and around the openings of the castellated beam. The finite element analysis of these stiffeners has been carried out by using ABAQUS software. The results show that the use of CFRP stiffeners for castellated beams enhances load-carrying capacity up to 20% and reduces the deflection by 12% as compared to the control castellated beam. The use of transverse CFRP stiffener reduces the web buckling failure and increases the load carrying capacity effectively as compared to the stiffeners used along the openings. As a result, it is preferable to use transverse stiffeners instead of the stiffeners used along of the openings. Keywords: Abacus software, Castellated beam, CFRP, Openings, Transverse stiffeners
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KNOWLES, P. R. "CASTELLATED BEAMS." Proceedings of the Institution of Civil Engineers 90, no. 3 (June 1991): 521–36. http://dx.doi.org/10.1680/iicep.1991.14728.

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Al-Thabhawee, Hayder Wafi Ali, and Muslim Abdul-Ameer Al-Kannoon. "Improving Behavior of Castellated Beam by Adding Spacer Plat and Steel Rings." Journal of University of Babylon for Engineering Sciences 26, no. 4 (February 20, 2018): 331–44. http://dx.doi.org/10.29196/jub.v26i4.810.

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Castellated steel beams are those members which are made from hot rolled steel I-section firstly by cutting the web in zigzag pattern and rejoining the two halves by welding together to form a hexagonal castellated beam such that the depth of section will be increased. Generally, the openings made in the web are with hexagonal shape; however, octagonal shape of web openings is typically obtained by providing spacer plate which is utilized to increase the depth of beam. Nowadays, using castellated beams in building construction becomes very popular because of their useful functions such as ease of service provision, strength and low cost. This study focuses on improving the behavior of hexagonal and octagonal castellated beam with spacer plate. The ultimate strength of the original (parent) I- section beam increases due to the increasing its depth. The increment of castellated beam depth; however, leads to post buckling in its web and to many other modes of failure when these beams are subjected for loading. Hexagonal and octagonal castellated beams which are fabricated using parent I-section (IPN140) are analyzed using finite element model (FEM).The analysis results revealed that using ring stiffeners around edge of holes contributes effectively in strengthening the web. It was found that using ring steel stiffeners can reduce the stress concentration around the edge of holes and improve the behavior of these beams by increasing the ultimate strength and minimizing the deflection. From the numerical (FEM) results obtained by using ANSYS14, it is concluded that ultimate strength of castellated beam can be improved by providing spacer plate and ring stiffeners around the web hole. Also, the results showed that ultimate strength of octagonal castellated steel beam can be increased up to (53%) more than the parent beam (IPN140) with providing only (13.0%) weight of steel (spacer plate plus ring steel stiffeners).
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Subramani, T., and V. Sukumar. "Castellated Beam with and without Stiffners Using ANSYS." International Journal of Engineering & Technology 7, no. 3.10 (July 15, 2018): 94. http://dx.doi.org/10.14419/ijet.v7i3.10.15638.

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Castellated beam is escalation in vertical bending stiffness, simple carrier provision and appealing look. But one effect of presence of Web beginning will be the development of varied local results. Castellated beams are metal beams with web openings and that they benefit its benefit because of its multiplied depth of phase without any extra weight. To analyze the conduct of castellated metal beams having an I-shaped go-element. Analysis is carried from beam with two factor load and genuinely supported assist condition.
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Chen, J. K., B. Kim, and L. Y. Li. "Analytical approach for transverse vibration analysis of castellated beams." International Journal of Structural Stability and Dynamics 14, no. 03 (February 16, 2014): 1350071. http://dx.doi.org/10.1142/s0219455413500715.

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This paper presents an analytical study on the dynamic characteristics of castellated beams. The study focuses on the effect of web shear on the free vibration frequencies of castellated beams. By using the Hamilton's principle, a simple closed-form solution for determining the free vibration frequencies of simply supported castellated beams is developed. The results show that the shear effect on the free vibration frequencies increases with the cross-sectional area and distance between the centroids of the two tee sections of castellated beams, but decreases with respect to increasing web thickness or increasing beam length. The shear effect is also found to be greater in higher vibration modes.
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Hadeed, Shakir Mahmood, and Ahmad Jabbar Hussain Alshimmeri. "Comparative Study of Structural Behaviour for Rolled and Castellated Steel Beams with Different Strengthening Techniques." Civil Engineering Journal 5, no. 6 (June 23, 2019): 1384–94. http://dx.doi.org/10.28991/cej-2019-03091339.

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Currently, the castellated steel beams are used widely because of their useful structural applications and serviceable performance due to their good significant properties such as light weight, facility in construction, materials economize and strength. The castellated steel beam fabricated from its origin solid beam (I-beam) by cutting its web in a zigzag path and then re-joined the two halve by welding so the height of the castellated beam expanded about 50%. The aim of this paper is to study the effect of castellation with and without strengthening on the structural behaviour of castellated beams and compare the results with the origin solid steel beam. Three castellated beams with deferent configuration in addition to solid beam subjected to two equal point loads at mid third of span with simple support condition were analysed numerically using finite element analysis by Abaqus software virgin (6.14.5) .The results show that the load carrying capacity values of castellated steel beams that represent (second, third& fourth) models were increased by (39.11,105.95&124.77) % respectively compared with origin solid beam due to increase beams stiffness after castellation and strengthening process, while mid-span deflection values at service load were decreased by (36.36,9.10&27.27) % respectively comparing with the origin solid steel beam due to increasing section dimensions and stiffness after castellation process and using strengthening technique respectively. Also it was seen that the maximum ultimate moment and ductility were observed in the fourth model that strengthened by high strength concrete and lacing reinforcement so they increased by 124.79% and 165.65% respectively as compare to reference beam, while the third model that strengthened by high strength concrete was stiffer than other beams.
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Dissertations / Theses on the topic "Castellated beams"

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DIAS, BRUNO VICENTE. "FINITE ELEMENT MODELING OF CASTELLATED AND EXPANDED CASTELLATED STEEL BEAMS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2017. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36758@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
As vigas de aço com abertura de alma propiciam a passagem de tubulações de serviços e instalações, fornecendo boa capacidade de resistência aos esforços cortantes. As vigas casteladas e as vigas celulares apresentam limitações de dimensões da abertura que estão ligadas à altura do perfil base, geralmente produzindo-se um perfil 50 por cento maior em altura. Neste trabalho, são estudadas as vigas casteladas expandidas em altura, através da soldagem de uma chapa complementar de alma, de modo a se obter vigas de maior inércia, mais leves e com maiores aberturas. O presente trabalho aborda os resultados obtidos através da modelagem por elementos finitos com análise não linear física e geométrica, com vistas a investigação do comportamento estrutural quanto a resistência da seção transversal e rigidez visando-se a redução de custos de fabricação pela eliminação da soldagem de chapas de reforço na região da abertura.
Steel beams with web openings allow integration between structural and tubular services and facilities, providing good shear strength capacity. The castellated and cellular beams have limitations due to this web openings and results in a profile with 50 per cent higher depth. In this research, depth expanded castellated beams with the use of an additional welded plate will be studied, aiming the obtainment of higher inertia as well as wider openings on lighter beams. The present work addresses the results results obtained through the finite element method using physical and geometric nonlinear analysis, observing the structural behavior regarding stiffness and strength in order to reduce manufacturing costs since the reinforcement plates in the areas will no more be required.
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Megharief, Jihad Dokali. "Behavior of composite castellated beams." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ37273.pdf.

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Bradley, T. Patrick. "Stability of Castellated Beams During Erection." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31117.

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The increased depth of castellated beams presents stability problems, specifically during erection. During erection the castellated beam must support the weight of an erector and self-weight until the continuous bracing of the floor deck is in place. The stability of the unbraced member is based on its resistance to lateral-torsional buckling.

The cross-sectional properties that are related to lateral-torsional buckling, such as out-of-plane bending, warping constant, and torsional constant were calculated using three different approaches to model the unique geometry of castellated beams. These properties were used in various lateral-torsional buckling solutions to determine which procedure should be used to check for this mode of failure.

Two specimens were tested to evaluate the results of the analytical unbraced length determination process. The tests results were used to better model the contribution of the web-to-column flange double angle connection on the stability of the castellated beam.
Master of Science

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Zaarour, Walid Jacques. "Web buckling in thin webbed castellated beams." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22843.

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An experimental test program was conducted at McGill University which incorporated 14 castellated steel beams provided by Chaparral Steel. The notable feature of these beams is their thin webs. The modes of failure and their corresponding loads were predicted based on a number of previous studies. A nonlinear finite element analysis was carried out in order to provide a new assessment tool. The program used was NASTRAN. The geometrics of the castellated steel beams were predicted to be susceptible to web post buckling.
The applied load which causes the formation of the mechanism failure (Redwood 1978), and the load which causes a horizontal yield failure, (Blodgett 1963), were calculated and compared to the predicted buckling load to anticipate the mode of failure. The web post buckling loads were predicted based on an analysis by Blodgett (1963), Aglan and Redwood (1974) and on the finite element analysis. The above analyses were repeated for five of the seven beams tested by Bazile and Texier (1968) and which failed by web post buckling.
The beams tested were susceptible to web post buckling, as predicted. The web post buckling analysis suggested by Blodgett (1963) resulted in large variations from the experimental failure load. The analysis suggested by Aglan and Redwood (1974) yielded conservative results. The finite element buckling analysis showed a good correspondence with the experimental buckling load and may be a good tool to conduct a more complete parametric study.
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Jackson, Rahsean LaNaul. "Vibration and Flexural Strength Characteristics of Composite Castellated Beams." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/31242.

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With the development of lightweight concrete and design optimizations, floor vibration problems are becoming a serious serviceability problem. The castellated beam is a prime example and was the focus of this study. The vibration and flexural strength performance were verified in this paper.

The vibration characteristics of castellated beams were examined using experimental and analytical test methods. The effective moment of inertia is essential to accurately predict the frequency and deflection of a floor system due to human occupancy. Since castellated beams have non-prismatic cross-sections, their effective moment of inertia is an uncertainty and was verified in this study. This paper confirmed the accuracy of the AISC Design Guide procedures used in for prismatic beam, when applied to castellated beams.

The flexural strength of various composite castellated beam were studied. Three full-scale specimens were tested to failure to evaluate their yield and maximum applied load. Each specimensâ moment strength was verified based on span, beam properties, concrete slab, and amount of shear connection.
Master of Science

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Maalek, S. "Finite element analysis of modular structures and the behaviour of castellated beams." Thesis, University of Manchester, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488207.

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OLIVEIRA, JULIA PITHAN DE. "DESIGN EQUATIONS FOR LOCAL BUCKLING OF CASTELLATED BEAMS SUBJECTED TO PURE BENDING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2017. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36634@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
PROGRAMA DE EXCELENCIA ACADEMICA
A motivação para este trabalho é desenvolver equações simples, porém suficientemente precisas, que possam ser usadas para projetos de vigas casteladas submetidas à flexão pura, considerando a contribuição do conjunto mesa-alma na flambagem local do elemento. Métodos energéticos - Quociente Rayleigh - são adotados para determinar a equação da tensão crítica aproximada. Neste método, a energia de deformação e o trabalho externo são calculados assumindo uma forma de deflexão aproximada, cinemática admissível e contínua. Assim, a precisão do resultado depende da qualidade da forma de deflexão adotada. Estas funções de forma foram escolhidas com base nos resultados obtidos a partir de modelos numéricos criados usando o software ABAQUS e verificados com o software GBTUL, considerando para analise a interação completa entre a alma e a mesa. As expressões desenvolvidas foram baseadas em aproximações clássicas de estabilidade de placas, validadas com estudos paramétricos realizados com os softwares ABAQUS e GBTUL. Os resultados indicaram que a equação proposta pode efetivamente calcular a tensão crítica relativa a instabilidade local de vigas casteladas. A expressão validada e os limites associados são destinados a ser gerais dentro dos limites típicos das aplicações práticas.
The motivation for this work is to develop a simple yet sufficiently accurate equation that can be used in the design of castellated beams subjected to pure bending, considering the contribution of the web-flange coupling effect in the local buckling. To accomplish this, an energy method - Rayleigh quotient - is adopted to determine the approximate critical stress equation. In this method, the strain energy and the potential work are calculated for an assumed approximate and kinematically admissible continuous deflected shape. Thus, the accuracy of the result is dependent on the quality of the assumed buckled shape. These shape functions were chosen based on the results obtained from numerical models created using ABAQUS software and verified with GBTUL, considering full interaction between web and flange. The developed closed-form expressions were based on classical plate stability approximations, validated with parametric studies performed using ABAQUS and GBTUL. The results indicate that the proposed equation can effectively calculate the critical stress of castellated beams due to local instability. The validated expression and its associated limits are intended to be general within the typical limits of practical applications.
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HagenBurger, William C. "Feasibility of open web rafters constructed of single angles." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42069.

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The purpose of the research reported here was to determine if single angles can be used for chord and web members in lightweight steel open web rafters, and if so to determine what effect the single angles have on the design of the rafter's members. A computer model was constructed to determine the effects of a unsymetric cross section coupled with eccentric loadings of the members on out-or-plane displacements, and bending moments and stresses in the chord and web members. This computer model modeled the eccentricities and unsymetric section properties of the single angles. A study of the effect of out-or-plane bracing on the bending moments and stresses was also conducted. Finally various web configurations (angle web members on the same side, alternating, and opposite) were studied to determine their effect on moments in the web and chord members, along with their effect on out-or-plane displacements. A preliminary design procedure for chord and web members using the new AISC ""Specification For Allowable Stress Design of Single Angle Members" is presented. Finally suggestions on out-of-plane bracing and connections are made.
Master of Science

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McClendon, Mark Andrew. "Blast resistant design for roof systems." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/7974.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 1, 2008) Includes bibliographical references.
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Oliveira, Luiza Baptista de. "Procedimentos para definição das características geométricas de vigas alveolares de aço para sistemas de piso e de cobertura." Universidade Federal de Viçosa, 2012. http://locus.ufv.br/handle/123456789/3777.

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Made available in DSpace on 2015-03-26T13:28:09Z (GMT). No. of bitstreams: 1 texto completo.pdf: 8690976 bytes, checksum: 44c939a6112d27b6f8696be3efc2044f (MD5) Previous issue date: 2012-03-16
The growth of steel construction in Brazil in recent years has naturally been accompanied by an increasing demand for resources that support the entire design process of steel structures, from its conception to its realization. In this context, there has been a resurgence of interest in alveolar beams, due to technical and aesthetic advantages that these elements offer, motivated in part by beginning production of steel rolled I profiles in Brazil, from 2002. Generally, the alveolar beams are manufactured from rolled steel I-profiles, by cutting the web along, according to a sinuous symmetrical line so that the halves so obtained can be displaced relative to one another and welded, originating a new beam with a series of web holes, with the same mass as the original profile, but with greater stiffness in the plane of bending, suitable for large spans. Although the alveolar beams are an old solution, abandoned due to rising manufacturing costs in a given time, most recently returned to appear as a competitive solution, due to technological advances in automation of cutting and welding of structural steel. Given the wide range of possibilities available today for the manufacture of alveolar beams, facilitated by the resources of design and computer aided manufacturing, this study aimed to procedures to define the geometric characteristics of alveolar steel beams to floor systems and roof systems, due to the lack of technical updates on this topic. Finally, we present a series of examples of applying the criteria and procedures proposed for various possible situations in the usual structures.
A expansão do segmento da construção metálica no Brasil tem sido acompanhada de uma demanda crescente por recursos que subsidiem todo processo de projeto de estruturas de aço, desde sua concepção até sua materialização. Nesse contexto, observa-se o ressurgimento do interesse pelas vigas alveolares, em função das vantagens técnicas e estéticas que esses elementos oferecem, em parte motivado pelo início da produção de perfis I de aço laminados no Brasil, a partir de 2002. Geralmente, as vigas alveolares são fabricadas a partir de perfis I de aço laminados, cortando-se sua alma longitudinalmente, segundo um traçado sinuoso simétrico, de modo que as metades obtidas podem ser deslocadas uma em relação à outra e soldadas, dando origem a uma nova viga com uma série de furos na alma, com praticamente a mesma massa do perfil original, porém com maior rigidez no plano de flexão, apropriada para grandes vãos. Embora as vigas alveolares sejam uma solução antiga, abandonada devido ao aumento dos custos de fabricação em determinada época, mais recentemente voltaram a figurar como uma solução competitiva, devido aos avanços tecnológicos em automação de corte e solda de aço estrutural. Tendo em vista a ampla gama de possibilidades atualmente existente para a fabricação de vigas alveolares, facilitadas pelos recursos de projeto e fabricação assistidos por computador, este trabalho teve como objetivo desenvolver critérios e procedimentos para o prédimensionamento de vigas alveolares de aço, em função da carência de prescrições técnicas atualizadas sobre o tema. Ao final, é apresentada uma série de exemplos de aplicação dos critérios e procedimentos propostos, para diversas situações possíveis nas estruturas de edificações estruturadas em aço.
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Books on the topic "Castellated beams"

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Essa, Hesham S. Distortional buckling of steel beams. Edmonton, Alta., Canada: Dept. of Civil Engineering, University of Alberta, 1993.

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2

Darwin, David. Steel and composite beams with web openings: Design of steel and composite beams with web openings. Chicago, Ill: American Institute of Steel Construction, 1990.

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Knowles, P. R. Design of castellated beams: For use with B.S.5950 and B.S.449. Croydon: Steel ConstructionInstitute, 1985.

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Knowles, P. R. Design of Castellated Beams for Use with British Standard 5950 and British Standard 449. Steel Construction Institute,The, 1985.

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Book chapters on the topic "Castellated beams"

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Dhaarini, S. T., C. Manoj Kumar, and D. Vinoth Raj. "Experimental Investigation of Cold-Formed Steel Castellated Beams." In Lecture Notes in Civil Engineering, 203–17. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6403-8_17.

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Kaveh, A., and V. R. Mahdavi. "Optimum Design of Castellated Beams Utilizing Colliding Bodies Optimization." In Colliding Bodies Optimization, 181–98. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19659-6_7.

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Mimoune, M., and S. Siouane. "Numerical Analysis on Lateral Distortional Buckling of Octagonal Castellated Steel Beams." In GCEC 2017, 423–30. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8016-6_34.

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Kaveh, A. "Optimum Design of Castellated Beams Using the Tug of War Algorithm." In Applications of Metaheuristic Optimization Algorithms in Civil Engineering, 9–30. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48012-1_2.

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Kaveh, Ali, and Armin Dadras Eslamlou. "Optimum Design of Castellated Beams with Composite Action and Semi-rigid Connection." In Metaheuristic Optimization Algorithms in Civil Engineering: New Applications, 51–71. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45473-9_3.

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Mehetre, Amol J., and Rajashekhar S. Talikoti. "The Effect of Angle of Web Opening for Prediction of Ultimate Failure Load of Castellated Beams by Experimental Investigation." In Lecture Notes in Civil Engineering, 121–34. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5195-6_9.

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Cyril Thomas, A., and K. Baskar. "Assessment of Load Carrying Capacity of Thin-Webbed Castellated Beam." In Lecture Notes in Civil Engineering, 339–50. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0362-3_27.

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Redwood, Richard, Walid Zaarour, and Jihad Megharief. "Web Post Buckling in Castellated Beams." In Advances in Steel Structures (ICASS '96), 67–71. Elsevier, 1996. http://dx.doi.org/10.1016/b978-008042830-7/50010-3.

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"Nonlinear finite element modelling of castellated steel beams lateral torsional buckling." In Research and Applications in Structural Engineering, Mechanics and Computation, 467–68. CRC Press, 2013. http://dx.doi.org/10.1201/b15963-221.

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Hartono, W., and S. P. Chiew. "Composite Behaviour of Half Castellated Beam with Concrete Top Slab." In Advances in Steel Structures (ICASS '96), 437–42. Elsevier, 1996. http://dx.doi.org/10.1016/b978-008042830-7/50069-3.

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Conference papers on the topic "Castellated beams"

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Gizejowski, Marian A., and Wael A. Salah. "Numerical Modeling of Composite Castellated Beams." In International Conference on Composite Construction in Steel and Concrete 2008. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41142(396)45.

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Estrada, H., J. J. Jimenez, and F. Aguíñiga. "Cost Analysis in the Design of Open-Web Castellated Beams." In Architectural Engineering Conference (AEI) 2006. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40798(190)53.

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Xue, Yicong, Yong Yang, Yunlong Yu, and Ruyue Liu. "Experimental study on mechanical performance of partially precast steel reinforced concrete beams." In 12th international conference on ‘Advances in Steel-Concrete Composite Structures’ - ASCCS 2018. Valencia: Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/asccs2018.2018.6942.

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Abstract:
In order to exploit the potentials in mechanical and constructional performance of steel reinforced concrete structures and prefabricated structures, three innovative kinds of partially precast steel reinforced concrete beams, which are abbreviated here as PPSRC, HPSRC and PPCSRC beam, are presented in this paper. The PPSRC beam is composed of two parts, which are the precast outer shell with high-performance concrete and the cast-in-place inner part with common-strength concrete. Meanwhile, on the basis of PPSRC beam, the PPCSRC beam applies castellated steel shape and the HPSRC beam keeps the beam core hollow. With the aim to investigate the mechanical behavior, failure mode and bearing capacity of the PPSRC, PPCSRC and HPSRC beams, a static loading experiment with twenty four specimens was carried out. The effects of aspect ratio, construction method, section shape, concrete flange and strength of concrete were critically examined. Test results indicate that the HPSRC, PPCSRC and PPSRC beams both exhibit similar mechanical performance and bonding performance. The flexural capacity and shear capacity are seldom affected by the construction method and section shape, and increase with the increasing of the cast-in-place concrete strength. The shear strength of the specimens is significantly affected by the concrete flange and aspect ratio.
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Deng, Hao, Wanli Pu, Tonglin Li, and Danyang Chen. "Analysis on Behavior of web buckling of Hexagonal Castellated Beams with Transverse Stiffeners Under Uniform Loads." In 5th International Conference on Civil Engineering and Transportation. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/iccet-15.2015.73.

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Rajalakshmi, E. "Modeling and manual design comparision of streeses in castellated beam using ansys." In 2013 International Conference on Current Trends in Engineering and Technology (ICCTET). IEEE, 2013. http://dx.doi.org/10.1109/icctet.2013.6675951.

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Reports on the topic "Castellated beams"

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EXPERIMENTAL STUDY AND THEORETICAL ANALYSIS ON SEISMIC PERFORMANCE OF CASTELLATED BEAM WITH HEXAGONAL HOLES. The Hong Kong Institute of Steel Construction, September 2020. http://dx.doi.org/10.18057/ijasc.2020.16.3.5.

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