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Dissertations / Theses on the topic 'Circular Strength'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Choe, Lisa Y. "Shear strength of circular reinforced concrete columns." Connect to resource, 2006. http://hdl.handle.net/1811/6448.

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Thesis (Honors)--Ohio State University, 2006.<br>Title from first page of PDF file. Document formatted into pages: contains ix, 68 p.; also includes graphics. Includes bibliographical references (p. 43-45). Available online via Ohio State University's Knowledge Bank.

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2

Baingo, Darek. "Performance of circular high-strength concrete columns under lateral load reversals." Thesis, University of Ottawa (Canada), 1996. http://hdl.handle.net/10393/9864.

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In recent years, high-strength concrete (HSC) has gained a more widespread acceptance in the construction industry. In spite of the advantages inherent to HSC, concerns still exist about its relative brittleness, particularly in regions of high seismic risk. An experimental and analytical investigation was conducted to study the behaviour of circular HSC columns subjected to simulated seismic loading. The experimental program included the testing of nine full-scale circular columns under combined axial compression and lateral load reversals. The emphasis was on the strength and deformation cha

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3

Alfawakhiri, Farid. "Behavior of high strength concrete filled circular steel tube beam-columns." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq26298.pdf.

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4

Da, Silva Pedro. "Effect of concrete strength on axial load response of circular columns." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0030/MQ64216.pdf.

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5

Kim, Young Joon. "The shear response of circular concrete columns reinforced with high strength steel spirals." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/MQ53375.pdf.

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6

Dexter, E. M. "Effects of overlap on behaviour and strength of steel circular hollow section joints." Thesis, Swansea University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636443.

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In response to frequent calls during the last few years for research into overlapped joints in steel circular hollow sections, this thesis addresses the static strength and behaviour of axially loaded overlapped K joints. A review of previous research and design guidance indicates the dearth of reliable, representative data and a general lack of knowledge of the behaviour of these joints, which are widely recognised as being potentially more cost effective than typical canned or stiffened gap joints. Preliminary, non-linear, numerical analyses, including thorough calibration of the Finite Elem

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7

Mysore, Paramesh Pragati. "Feasibility Study on Highly Slender Circular Concrete Filled Tubes Under Axial Compression." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/75045.

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Circular Concrete Filled Tubes are gaining importance in the construction industry due to their advantages insofar as economy and structural efficiency. Due to the recent developments in concrete and steel technology, the usage of high strength materials in these concrete filled tubes is increasing. The governing American specification (AISC 360-16) classifies these composite members as compact, non-compact and slender sections. The allowed section slenderness (ratio of diameter to thickness ratio) in each classification is related to the material properties (ratio of Young's modulus to yield

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8

Ali, Ahmed Mohammed Hassan. "Shear strength and behavior of circular concrete members reinforced with FRP bars and spirals." Thèse, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/8803.

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Abstract : Circular reinforced concrete (RC) members are often used in civil engineering structures, for instance, as piers and piles in bridge substructures. Also, their applications are frequently utilized as a fender and piling system for harsh water front and marine environments. Such members are usually reinforced with conventional steel bars and stirrups. Corrosion of steel reinforcement constitutes one of the major problems that shorten the lifetime serviceability and, hence, brittle failure of many concrete structures worldwide. In the last decade, the use of fiber reinforced polymer (

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9

Green, Benjamin George. "The effect of size on the tensile strength of composite laminates containing circular holes." Thesis, University of Bristol, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435851.

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10

Ogunnupebi, Mary Oluwatosin. "Effect of non-uniaxial loading on the tensile strength of composite laminates containing circular holes." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.715754.

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11

Mohamed, Ahmed Abdeldayem. "Behavior, strength and flexural stiffness of circular concrete columns reinforced with FRP bars and spirals/hoops under eccentric loading." Thèse, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11406.

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Abstract : Deterioration of concrete structures reinforced with steel bars can be seen daily in regions with aggressive weather as steel-corrosion problems worsen. Fiber-reinforced-polymers (FRP) reinforcement has proven its feasibility through different civil structural elements. Present guidelines for FRP structures in North-America and Europe have not yet handled axially loaded members, due to the lack of research and experiments. This research takes charge of providing experimental database as well as extensive analyses and design recommendations of circular concrete columns reinforced tot

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12

Osorio, Gomez Laura Isabel. "Behavior of synthetic fiber-reinforced concrete circular columns under cyclic flexure and constant axial load." Mémoire, Université de Sherbrooke, 2008. http://savoirs.usherbrooke.ca/handle/11143/1435.

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La ductilité et la capacité à dissiper de l'énergie sont deux qualités très importantes pour les éléments structuraux des structures situées dans les régions sismiques comme l'est du Canada. Soulignons que Montréal occupe la deuxieme place en ce qui a trait au risque sismique au Canada. De plus, la réduction des coûts de maintenance des infrastructures est un sujet d'intérêt pour les propriétaries alors que ces derniers doivent en tout temps garantir la sécurité des usagers. Or, le béton renforcé avec des fibres synthétiques semble être un matériau qui remplit ces caractéristiques. Pourtant, s

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13

Billew, Barrett Slade. "Flow-Acting: Modern Sports Science and the Preparation of Actors." VCU Scholars Compass, 2008. http://scholarscompass.vcu.edu/etd/775.

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Theatre artists and acting teachers throughout history have sought to find and create presence. By combining modern sports science with an understanding of systems of actor training I have suggested an approach that makes presence a trainable skill. My coach Dr. Scott Sonnon, developer of the Circular Strength Training System, has refined modern sports science to emphasize the development and maintenance of flow-state. This state allows the athlete to respond openly and freely within a constantly changing situation.By combining my life long study of acting with my eight years of work with Coac

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14

Szponarski, Wojciech. "Etude par dichroisme circulaire et par marquage isotopique des interactions de l'amphotericine b et de ses derives avec les erythrocytes humains et leurs membranes isolees." Paris 6, 1987. http://www.theses.fr/1987PA066636.

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15

Hamaïdia, Abderrahmane. "Etude par dichroisme circulaire magnetique et par resonance paramagnetique electronique des centres colores dans caf : :(2) et srf::(2) dopes par des ions alcalins." Caen, 1987. http://www.theses.fr/1987CAEN2027.

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Etude des centres colores de quatre cristaux de fluorures alcalinoterreux dopes par li, na et k, colores additivement ou par rayonnement gamma. Mise en evidence de deux types de centre f::(a) par dichroisme circulaire magnetique. On a etudie ensuite le centre f::(2a) dont il a ete montre que l'analogie avec le centre f::(2) est trompeuse. D'autres centres ont ete etudies. On a pu comprimer l'identification de l'un d'entre eux comme f::(3a) ionise

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16

Vandevelde, Margez Marie-Colette. "Contribution à l'étude physicochimique d'un polyélectrolyte naturel : la gomme arabique exsudat d'acacia Sénégal." Rouen, 1986. http://www.theses.fr/1986ROUES007.

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Méthodologie de caractérisation de la gomme arabique: chromatographie d'exclusion de différents nodules d'acacia Sénégal et fractionnement de la gomme arabique; interactions de petits cons (colorants) avec la gomme arabique

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17

Portolés, Flaj José Manuel. "Estudio experimental y numérico de soportes tubulares circulares de acero esbeltos rellenos de hormigón de alta resistencia." Doctoral thesis, Universitat Jaume I, 2010. http://hdl.handle.net/10803/669145.

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En los últimos años la utilización de perfiles tubulares de acero rellenos de hormigón (CFT) se ha incrementado debido a su excelente comportamiento frente al sismo, alta resistencia, alta ductilidad y la gran capacidad de absorción de energía. Aunque España y en particular la Comunidad Valenciana no son zonas de riesgo sísmico elevado, el uso de este tipo de pilares ofrece también otras ventajas, como por ejemplo el incremento en la velocidad del proceso de construcción, la posibilidad de estandarización de las uniones y lo que es muy importante, una mayor resistencia al fuego. Por otra part

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18

Clark, W. S. "Axial load capacity of circular steel tube columns filled with high strength concrete." Thesis, 1994. https://vuir.vu.edu.au/18153/.

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This study examines the axial load capacity of circular Concrete Filled Steel Tube columns using High Strength Concrete (CFST-HSC). Emphasis is drawn to the enhanced axial capacity of short columns attributed to the lateral confinement of the concrete infill provided by the steel encasement. The degree of confinement has been found to be dependent on several geometric and mechanical parameters. At present, significant discrepancies exist with respect to quantifying the effective strength confined concrete. Existing design models and codes are predominantly derived from the characteristic

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19

Chang, Chia-chi, and 張家琪. "Design for Buckling Strength of Ring-Doubler Reinforced Rectanguler Plates Containing a Circular Cutout." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/26366375493381153329.

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碩士<br>中興大學<br>機械工程學系所<br>95<br>Aircraft structure such as bulkhead webs, floor panels and the skin often consist of the many plate-like flat structures. In the design of these structural elements, the buckling strength is often the most critical factor to be considered. The plate structure having a hole cut out for the purpose of the installation of the wire’s or pipe’s system, usually needs reinforcement in the periphery of the hole in order to lower the working stress and increase the structure’s stability. In this thesis studies are carried out on the structural stability of the aluminum r

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20

El-Lobody, E., B. Young, and Dennis Lam. "Behaviour of normal and high strength concrete-filled compact steel tube circular stub columns." 2006. http://hdl.handle.net/10454/5789.

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This paper presents the behaviour and design of axially loaded concrete-filled steel tube circular stub columns. The study was conducted over a wide range of concrete cube strengths ranging from 30 to 110 MPa. The external diameter of the steel tube-to-plate thickness (D/t) ratio ranged from 15 to 80 covering compact steel tube sections. An accurate finite element model was developed to carry out the analysis. Accurate nonlinear material models for confined concrete and steel tubes were used. The column strengths and load¿axial shortening curves were evaluated. The results obtained from the fi

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21

Giakoumelis, G., and Dennis Lam. "Axial Capacity of Circular Concrete¿filled Tube Columns." 2004. http://hdl.handle.net/10454/5652.

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no<br>The behaviour of circular concrete-filled steel tubes (CFT) with various concrete strengths under axial load is presented. The effects of steel tube thickness, the bond strength between the concrete and the steel tube, and the confinement of concrete are examined. Measured column strengths are compared with the values predicted by Eurocode 4, Australian Standards and American Codes. 15 specimens were tested with 30, 60 and 100 N/mm2 concrete strength, with a D/t ratio from 22.9 to 30.5. All the columns were 114 mm in diameter and 300 mm in length. The effect due to concrete shrinkage is

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22

Bowers, Dennis. "A comparison of maximal isometric force output between the tri-bar gripping system and the traditional circular weightlifting bar." 2002. http://www.oregonpdf.org.

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Thesis (M.S.)--Slippery Rock University, 2002.<br>Includes bibliographical references (leaves 36-37). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

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23

Lin, Jimmy, and 林志明. "Ultimate Strength Analysis of Ring-Stiffened Circular Cylinders Under Hydrostatic Pressure-A Comparison of Experiment and Theory." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/08926528642450466281.

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碩士<br>國立成功大學<br>造船工程學系研究所<br>85<br>The structural behaviours of circular cylindrical shells are so complicated t hat their design could not depend on numerical or analytical method but on sem i-empirical method. The basic concept of the latter is that the ultimate stren gth of the circular cylindrical shells can be thought as linear elastic buckli ng loadsmultiplied by imperfection factor and plastic reduction factor which d erived fromexperimental datas. The collapse of cylinderical shellsunder hydros ti

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24

Chin, V.-Liam, and 陳威霖. "Shear Strength Design and Tests of Circular Reinforced Concrete Columns Confined with a FRP-Wrapped Spiral Corrugated Tube." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/27213936131256612485.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>104<br>This study is conducted to investigate the shear strength of FRP-Wrapped Spiral Corrugated Tube (FWSCT) confined circular concrete columns. In order to study the shear strength of the Spiral Corrugated Tube and the FRP jacket, two shear strength models (UCSD shear model and residual shear model) are adopted in this analytical procedure. In this experimental program, two FRP-Wrapped Spiral Corrugated Tube (FWSCT) Circular Concrete Columns with different amount of FRP confinement were tested under cyclic lateral loading with a constant axial load level. The mai

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25

Singh, Aditya. "Closed-form solutions for circular cavity in brittle and ductile rocks using true triaxial strength criteria under plane strain." Thesis, 2018. http://localhost:8080/iit/handle/2074/7594.

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26

CIOU, SIAO-JHUN, and 邱効諄. "Predicting the Notched Strength of Composite Plates Each with a Center Circular Hole by a Finite Element Based Average Stress Criterion." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/x5nr6a.

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碩士<br>逢甲大學<br>機械與電腦輔助工程學系<br>106<br>In this study, a novel procedure has been developed for predicting the notched strengths of composite plates each with a center circular hole. In this approach, the stress distribution of a composite plate with a center hole is first obtained by a finite element analysis, in which the experimental notched strength is applied at the boundary of the finite element model. Secondly, the average stress criterion (ASC) is used to find the characteristic length for each plate with different size of hole by an interpolation of the finite element analysis results. Th

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27

Conca, Vincenzo. "Scale-up of Innovative and Sustainable via-Nitrite Biological Processes for Resource Recovery in Existing Wastewater Treatment Plants." Doctoral thesis, 2021. http://hdl.handle.net/11562/1042911.

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Over the last years, the transition from wastewater treatment plants to water resource recovery facilities has gained a lot of attention. The aim of these thesis was the deep investigation of novel via-nitrite bioprocesses for the integration of via-nitrite nitrogen and phosphorus removal from the sludge reject water with resource recovery such as nutrients, chemical precursors and high added-value bioproducts. The biological via-nitrite nitrogen and phosphorus removal from the sludge reject water through the S.C.E.N.A. process was investigated in a full-scale sequencing batch reactor (SBR)

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28

Bhardwaj, Vivek. "Application of FLAC in bearing capacity analyses of layered clays." 2007. http://hdl.handle.net/1993/302.

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Understanding the bearing response of the footings on layered soils has always been a challenge for researchers. Due to the limitations of analytical and empirical solutions it had been difficult to understand the true bearing behavior. Some researchers have tried solving this problem by numerical analysis and have found some success. In this study the numerical analysis approach has been applied using a commercial tool FLAC (Fast Lagrangian Analysis of Continua) to study the bearing response of surface footings on layered clays. First, small deformation analyses were taken up to study the und

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29

Widmer, Tobias. "Assessing the strengths and limitations of Business Model Frameworks for Product Service Systems in the Circular Economy: Why Canvas and co. are not enough." Thesis, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188958.

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Today’s value chains rely strongly on a virgin material to ‘take-make-dispose’ products.One way to reduce that dependency on finite resources is a circular economy (CE).Different pillars form the concept, this research paper focuses on Product-ServiceSystems (PSS) in which a customer instead of buying a product for example only paysfor the use of one.Companies who want to transfer towards a circular business model (BM) facetremendous organisational challenges. They cannot just modify some parts of theiroperations, they have to change the entire BM. Much of the literature and t on BM is aresult

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