Academic literature on the topic 'Tension Structures'

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Journal articles on the topic "Tension Structures"

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Mollaert, Marijke. "Teaching Tension Structures." International Journal of Space Structures 17, no. 2-3 (June 2002): 171–81. http://dx.doi.org/10.1260/026635102320321815.

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The main purpose of the course “Form Active Structures” [6] is to waken the students' interest in the design of space and structural systems and to clarify the principles to obtain lightweight constructions. Concepts, calculation techniques, detailing and erection are first illustrated. The practical part linked to this course consists of four topics: building physical models, numerical form-finding and analysis, a study trip and the design for a real case. Especially in this last part the need to design both geometry and pretension together, and the consequences if this is not properly done, comes to the students' consciousness.
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Wagner, Rosemarie. "Basics in Tension Structures." International Journal of Space Structures 24, no. 4 (December 2009): 223–31. http://dx.doi.org/10.1260/026635109789968218.

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Hernández-Montes, E., R. Jurado-Piña, and E. Bayo. "Topological Mapping for Tension Structures." Journal of Structural Engineering 132, no. 6 (June 2006): 970–77. http://dx.doi.org/10.1061/(asce)0733-9445(2006)132:6(970).

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Tabarrok, B., and Z. Qin. "Dynamic analysis of tension structures." Computers & Structures 62, no. 3 (February 1997): 467–74. http://dx.doi.org/10.1016/s0045-7949(96)00203-9.

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Tabarrok, B., and Z. Qin. "Nonlinear analysis of tension structures." Computers & Structures 45, no. 5-6 (December 1992): 973–84. http://dx.doi.org/10.1016/0045-7949(92)90056-6.

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Masahisa, Fujikake, Kojima Osamu, and Fukushima Seiichiro. "Analysis of fabric tension structures." Computers & Structures 32, no. 3-4 (January 1989): 537–47. http://dx.doi.org/10.1016/0045-7949(89)90345-3.

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Onat, Onur, and Burak Yön. "Effects of Tension Reinforcement Ratio on Ductility of Mid-Rise Reinforced Concrete Structures." Academic Perspective Procedia 1, no. 1 (November 9, 2018): 702–8. http://dx.doi.org/10.33793/acperpro.01.01.127.

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Failure mode of reinforced concrete (RC) structures are classified according to tension reinforcement ratio of beam elements. To determine effect of tension reinforcement ratio on performance of RC structure, two planar RC structure were selected. One of them is 5 stories other of them is 7 stories. Two different concrete class, C20 and C25, were considered for analysis. Three tension reinforcement combinations were considered, three different tension reinforcement ratios were used. First case is the ratio of the tension reinforcement is lower than that of the compression reinforcement, second case is the ratio of the tension reinforcement is equal to the ratio of the compression reinforcement and third case is the ratio of the tensile reinforcement is higher than the compression reinforcement.
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Zhang, Ming Bo, Bin Zeng, and Qing Xu. "Stress Performance Analysis on a New Type of Flexible Suspension Tension Structure." Advanced Materials Research 224 (April 2011): 210–15. http://dx.doi.org/10.4028/www.scientific.net/amr.224.210.

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A new type of flexible suspension tension structure (FSTS) is presented in this paper, which has the advantages of high-efficiency, convenient construction and wide application sphere, and it is also a kind of green and low carbon structure. In order to investigate the mechanical behavior of FSTS under the vertical load, series of structures under 10 groups of upward loads and 8 groups of downward loads are calculated with the matrix analysis method. The results show that the passive tensions of cables and displacement in the middle of span present approximate linear features under the downward loads. However, there are double broken linear features in FSTS under the upward loads. So this regularity can be utilized for the simple analysis and two-stage design calculation. Finally, the reliability of FSTS with the initial tension is investigated with the interval method. 81 kinds of structures with different initial tension are calculated, and the influence regularity of the initial tension in the back cable and the bottom cable are given. It is found that the deformation of FSTS is more sensitive to the initial tension of cables. Consequently, the initial tensions of cables are dominated by deformation of structures under design and construction.
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Zhang, Zhi Qian, Shi Cai Chen, Wei Ming Yan, and Xiang Xin Ren. "Experimental Investigation on Vertical Tension Property of Laminated Rubber Bearings." Applied Mechanics and Materials 166-169 (May 2012): 583–87. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.583.

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In order to study the vertical tension properties of laminated rubber bearings under different shear strain, pure tension test and shear-tension test on two groups of natural rubber bearings and lead core rubber bearings with 800mm diameter are present in this paper, and the initial stiffness, yield stiffness and yield stress and ultimate tensile properties (limit stress, limit strain) of the rubber isolation bearing in different shear strain are analyzed. The results of the tests provide the reference for the application of rubber bearings on large-scale complex structures or high building structures.
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Jurado-Piña, R., and M. A. Salazar-Troya. "A simple method for the design of tension structures combining topological mapping and nonlinear structural analysis." Informes de la Construcción 66, Extra-1 (December 30, 2014): m012. http://dx.doi.org/10.3989/ic.13.090.

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Dissertations / Theses on the topic "Tension Structures"

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Ong, Chee Fatt. "Computer-aided design of tension structures." Thesis, City University London, 1992. http://openaccess.city.ac.uk/7994/.

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This thesis consists of three parts. Part I (chapters 1-4) gives a review and description of the basis for the numerical modelling of tension structures. The discussion in Part I leads to the conclusion of a need for an interactive design procedure for tension structures which is the subject under consideration in Part II (chapters 5-7). In the design of tension structures, an area which requires special attention is the dynamic response often initiated by the action of a natural wind. In Part III (chapters 8 and 9), this area is examined in detail and a strategy is proposed to give an improved modelling of dynamic response. The numerical procedure developed is assessed by comparison with previously reported test results for a pneumatic dome. Chapter 1 gives a general introduction to tension structures, and their main characteristics and behaviour are briefly described. From both the structural and architectural points of view, tension structures (classified as either prestressed cable nets or doubly curved membranes) do offer a number of benefits which arise from their characteristics and behaviour. The different types of cable nets which can be contructed are outlined, and various possible types of membrane structures and membrane materials which can be used are described. In addition, the form-finding and load analysis stages in the design process of tension structures are briefly discussed. An overview of Parts I, II and III of this thesis is also included. As a result of the flexible nature of a tension structure, large deformations often occur under loads acting normal to the surface. In addition, the coated woven fabrics exhibit material non-linearities, ie. the material properties vary under loads. In other words, a full non-linear structural analysis accounting for both material and geometric non-linearities is required in order to give a realistic modelling of the behaviour of a tension structure. Chapter 2 reviews numerical methods which have been widely reported for dealing with nonlinear structural analysis. From the review, it will be noted that the dynamic relaxation (DR) method is well suited to solving the highly non-linear problems which occur particularly in the case of tension structures. The dynamic relaxation method with a finite element idealisation of the structure is chosen as the solution scheme for all the analysis work in this thesis, and a detailed description of the method is given in chapter 3. Features of the method which are particularly useful for the design of tension structures are: (a) the effective decoupling of the equations of compatibility and equilibrium which allows complex material properties modelling and the use of slip cables, etc., and (b) the use of a 'kinetic' damping procedure which permits gross changes in support geometries to be made during interactive form-finding without the possibility of numerical instability. Although the main surface spanning elements may be purely tensile, many tension structures will employ compression and bending elements for their support. For example, as a means of providing support to a large span tension structure, a compression boundary is considered to be an efficient alternative to tension anchorages. In a sense, a compression boundary is complimentary to the tension elements in the structure as these elements also act as supports to the compression boundary. This gives the advantage of a compression boundary comprising of slender sections. The compression boundary is modelled as a series of beam elements. The moment-curvature equations of a beam element expressed in the form of natural stiffness relations, are developed in chapter 4. In addition, the non-linearities, both geometric and material, and boundary conditions which can be dealt with by the beam elements are considered. An outline is given of the implementation of the beam elements using the dynamic relaxation method. Included in chapter 4 are also the results to test problems which have been set up in order to validate the underlying theory and implementation of the beam elements. As tension structures often exhibit complex surface curvatures, a study of surfaces, their properties and behaviour is appropriate, and useful in the understanding of concepts applied in the design process. This study is the subject of chapter 5 which focusses on the relevant topics of differential geometry. A few useful ideas from differential geometry form the basis of certain procedures implemented into the form-finding and patterning stages being considered in chapter 6. The derivation of the equilibrium equations for a surface when acted on by applied loads is also given in chapter 5. The discussion in chapter 6 is about the stages of form-finding and static load analysis in the design process. A review of the available solution methods for the form-finding problem are given in this chapter. In these methods, the solution can be for either the unknown geometry or unknown stresses, or both. The adopted approach in this thesis is to solve for the unknown equilibrium geometry given the stress distributions, and initial and boundary conditions. The controls which can be used during form-finding to achieve the desired geometries of cable nets and membrane structures are discussed. The equilibrium geometry derived from the form-finding stage has to be subsequently evaluated for its performance under loads at the load analysis stage. After an equilibrium geometry which behaves satisfactorily under loads has been achieved, the corresponding cutting patterns are developed in the case of membrane structures. Recent advances in interactive computer graphics technology have made it possible to develop a fully interactive CAD system for tension structures. The development of such a CAD system is the subject of discussion in chapter 7. The CAD system integrates together the form-finding, load analysis and fabrication patterning stages, resulting in a continuous design process. It demonstrates how the various concepts discussed in Part I of this thesis fit together within an interactive environment implemented with an effective and functional user interface. It is illustrated in chapter 7 how such a user interface has been achieved. The CAD system fully exploits the capabilities offered by the available computer hardware such that the computations involved during analysis of the structure, in generation of surface shaded graphic images and so on, can be executed at very high speeds. As a result, the CAD system can respond quickly to the user and is thus consistent with the interactive nature of the design process. The discussion in chapter 7 also provides an insight into the various procedures involved throughout the design process. The CAD system has produced a number of benefits of which the main one is the saving in design time which has been achieved. As the CAD system is highly user friendly, only a short learning period is required, thus enabling it to be used more widely among designers. The CAD system also serves as a useful tool for the communication of ideas between the engineer and the architect. In the design of a tension structure unlike that of a conventional building, there is often close cooperation between the engineer and the architect right from the early stages of conceptual development. In chapter 8, the possible loads which may act on a tension structure during its service life are considered. These loads are applied to the structure at the load analysis stage in the design process. In most cases, the design loads are those due to snow and wind. An accurate assessment of the loads is essential in order to achieve a structurally sound and economic design. In addition, it should be possible to represent the loads in a form which can be easily applied in the structural analysis. The considerations which are involved in the assessments of the snow and wind loads are outlined.
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Tsai, Frank J. (Frank Jin-Fong) 1976. "Distributed active control for tension structures." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/81544.

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Pargana, Julio Balsa. "Realistic modelling of tension fabric structures." Thesis, Imperial College London, 2004. http://hdl.handle.net/10044/1/51483.

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An accurate and reliable analysis capability for Tensioned Fabric Structures (TFS) constructed from plain weave PTFE coated glass-fiber fabric has been developed in this work. This analysis facility has in turn enabled an investigation of the behaviour and design of TFS to be conducted. The investigation has revealed deficiencies in current design procedures, which may ultimately result in compromised design, as these are founded on unrealistic overly simplistic design assumptions. The analysis facility developed is based on finite element analysis, and utilizes newly purpose developed elements and a specially developed material model for the fabric component of structures. The new elements and material model for fabric have been integrated into ADAPTIC (Izzuddin, 1991), an advanced nonlinear structural analysis program, allowing real structures to be analysed. The analysis facility developed enables analytical structural models to converge closer to physical reality than allowed by existing analysis facilities, which is attributed to the robust assumptions upon which the new analysis facility is based. As an example of such a robust assumption, fabric patterns are taken to be flat in their unstressed state, a realistic assumption ignored by typical current analysis capabilities for TFS. The accuracy and reliability of the developed finite elements and material model for the fabric are demonstrated to be high, through an appropriate number of verification examples and comparison of experimental test data, for the material response, against the modelled response. Confidence in the analysis facility is thus guaranteed. The work also contains a theoretical deliberation of the current design procedure, the integrated design procedure and a new design procedure called the combined design procedure. The combined design procedure, so called as it is based on both the current design procedure and the integrated design procedure, offers the prospect of considerable improvements to the overall design process for TFS.
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Cao, J. J. "Tension circular flange joints in tubular structures." Thesis, University of Manchester, 1995. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527696.

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Gribniak, Viktor. "Shrinkage Influence on Tension-Stiffening of Concrete Structures." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20091102_090235-06535.

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Due to the use of refined ultimate state theories as well as high strength concrete and reinforcement, resulting in longer spans and smaller depths, the serviceability criteria often limits application of modern reinforced concrete (RC) superstructures. In structural analysis, civil engineers can choose between traditional design code methods and numerical techniques. In order to choose a particular calculation method, engineers should be aware of accuracy of differ-ent techniques. Adequate modelling of RC cracking and, particularly, post-cracking behaviour, as one of the major sources of nonlinearity, is the most im-portant and difficult task of deformational analysis. In smeared crack approach dealing with average cracking and strains, post-cracking effects can be modelled by a stress-strain tension-stiffening relationship. Most known tension-stiffening relationships have been derived from test data of shrunk tension or shear mem-bers. Subsequently, these constitutive laws were applied for modelling of bend-ing elements which behaviour differs from test members. Furthermore, such re-lationships were coupled with shrinkage effect. Therefore, present research aims at developing a technique for deriving a free-of-shrinkage tension-stiffening re-lationship using test data of shrunk bending RC members. The main objective of this PhD dissertation is to investigate shrinkage influence on deformations and tension-stiffening of RC members subjected to short-term loading. Present... [to full text]
Pastaraisiais metais vis plačiau taikant stiprųjį betoną bei armatūrą, konst-rukcijų perdengiamos angos didėja, o skerspjūviai mažėja. Todėl projektuojant standumo (įlinkių) sąlyga vis dažniau tampa lemiamu veiksniu. Inžinieriai gelž-betoninių konstrukcijų apskaičiavimams gali taikyti empirinius normų arba skai-tinius metodus. Vieno ar kito skaičiavimo metodo parinkimas turi būti pagrįstas statistiniais tikslumo analizės rezultatais. Yra žinoma, kad adekvatus gelžbetoninio elemento pleišėjimo (ypač plyšių vystymosi stadijos) modeliavimas yra vienas sudėtingiausių netiesinės mechani-kos uždavinių. Toks uždavinys gali būti išspręstas taikant vidutinių plyšių kon-cepciją, kai pleišėjimo proceso modeliavimui naudojama tempiamojo betono vidutinių įtempių ir deformacijų diagrama. Dauguma tokių diagramų gautos, naudojant tempimo arba šlyties bandymo rezultatus. Pabrėžtina, kad šių diagra-mų taikymas lenkiamųjų gelžbetoninių elementų modeliavime duoda nemažas paklaidas. Kitas svarbus aspektas yra tai, kad gelžbetoniniuose bandiniuose, iki juos apkraunant trumpalaike apkrova, vyksta betono susitraukimas. Šiame darbe buvo siekiama sukurti metodą, leidžiantį pagal eksperimentinius lenkiamųjų gelžbetoninių elementų duomenis gauti tempiamojo betono vidutinių įtempių ir deformacijų diagramas, įvertinant betono susitraukimo įtaką. Pagrindinis diser-tacijos tikslas yra įvertinti ikieksploatacinių betono susitraukimo ir valkšnumo poveikį gelžbetoninių elementų, apkrautų trumpalaike apkrova... [toliau žr. visą tekstą]
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Son, Miriam Euni. "The design and analysis of tension fabric structures." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39275.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2007.
Includes bibliographical references (leaf 48).
Although tensioned fabric structures are increasingly in demand, since they are comparatively new to the engineering world, there are relatively limited resources available about such structures. This report reviews the topics that encompass the design and analysis of tensioned fabric structures. First, an overview of the conceptual basis of tensioned membranes is discussed, as well as the different shapes that are formed using manipulations of the basic concept. Since the material properties play a key role in the durability of tension fabric structures, the ideal material characteristics, as well as the current available fabrics are described. Both the strength of the employed materials and the load considerations for design are outlined. The report follows by explaining the process of roughly assessing the scope of a project, as well as the variety of non-linear analysis that must be performed and the methods used to perform them. This report concludes with key connection details that must be considered for a successful tension fabric structure.
by Miriam Euni Son.
M.Eng.
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Lam, Daniel F. "STRAIN CONCENTRATION AND TENSION DOMINATED STIFFENED AEROSPACE STRUCTURES." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1145393262.

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Tahir, Hakim. "Conception et réalisation de structures IGBTs bidirectionnelles en courant et en tension." Phd thesis, Université Paul Sabatier - Toulouse III, 2011. http://tel.archives-ouvertes.fr/tel-00634449.

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Dans ce mémoire, nous proposons une structure IGBT symétrique en courant et en tension. Cet interrupteur monolithique et commandé par MOS devrait pouvoir remplacer la structure triac, actuellement le seul dispositif bidirectionnel monolithique commercialisé, dans des applications sur le réseau alternatif. En effet, le triac est un composant commandé en courant et nécessite une énergie de commande élevée par rapport aux structures commandées en tension. Nous avons dans un premier temps analysé les principales structures bidirectionnelles commandées en tension proposées dans la littérature afin de déterminer leurs avantages et leurs limitations. Nous avons ensuite étudié, conçu et réalisé la structure IGBT bidirectionnelle en courant et en tension. L'étude menée utilise des simulations 2D afin d'évaluer l'influence des paramètres technologiques et géométriques sur les performances en conduction et en commutation de l'IGBT bidirectionnel. Deux voies technologiques pour la réalisation du composant ont été proposées et intégrées dans la filière IGBT du LAAS. La première voie est basée sur l'utilisation de la technique de photolithographie double face et la deuxième est basée sur la technique de soudure directe Si/Si. Une analyse approfondie des deux techniques nous a permis de mettre en évidence les atouts et les limites de chaque technique. Enfin, nous avons proposé une autre structure bidirectionnelle en courant et en tension, commandée par MOS et à électrodes coplanaires. En effet, cette structure originale a toutes ses électrodes de puissance et de commande sur une seule face du substrat ce qui permet de remédier à la difficulté d'encapsulation rencontrée avec la plupart des structures bidirectionnelles proposées dans la littérature. Cette architecture originale devrait en outre faciliter, en utilisant des techniques d'interconnexion 3D, l'intégration in package du dispositif de puissance avec sa commande. Une analyse du fonctionnement de cette structure est effectu ée à l'aide de simulations 2D et des éléments de conception et de réalisation ont été donnés.
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Kim, Joun S. "A Comparison Study of Composite Laminated Plates With Holes Under Tension." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1895.

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A Comparison Study of Composite Laminated Plates with Holes under Tension A study was conducted to quantify the accuracy of numerical approximations to deem sufficiency in validating structural composite design, thus minimizing, or even eliminating the need for experimental test. Error values for stress and strain were compared between Finite Element Analysis (FEA) and analytical (Classical Laminated Plate Theory), and FEA and experimental tensile test for two composite plate designs under tension: a cross-ply composite plate design of [(0/90)4]s, and a quasi-isotropic layup design of [02/+45/-45/902]s, each with a single, centered hole of 1/8” diameter, and 1/4" diameter (four sets total). The intent of adding variability to the ply sequences and hole configurations was to gauge the sensitivity and confidence of the FEA results and to study whether introducing enough variability would, indeed, produce greater discrepancies between numerical and experimental results, thus necessitating a physical test. A shell element numerical approximation method through ABAQUS was used for the FEA. Mitsubishi Rayon Carbon Fiber and Composites (formerly Newport Composites) unidirectional pre-preg NCT301-2G150/108 was utilized for manufacturing—which was conducted and tested to conform to ASTM D3039/D3039M standards. A global seed size of 0.020, or a node count on the order of magnitude of 30,000 nodes per substrate, was utilized for its sub-3% error with efficiency in run-time. The average error rate for FEA strain from analytical strain at a point load of 1000lbf was 2%, while the FEA-to-experimental strains averaged an error of 4%; FEA-to-analytical and FEA-to-tensile test stress values at 1000lbf point load both averaged an error value of 6%. Suffice to say, many of these strain values were accurate up to ten-thousandths and hundred-thousandths of an in/in, and the larger stress/strain errors between FEA and test may have been attributed to the natural variables introduced from conducting a tensile test: strain gauge application methods, tolerance stacks from load cells and strain gauge readings. Despite the variables, it was determined that numerical analysis could, indeed, replace experimental testing. It was observed through this thesis that a denser, more intricate mesh design could provide a greater level of accuracy for numerical solutions, which proves the notion that if lower error rates were necessitated, continued research with a more powerful processor should be able to provide the granularity and accuracy in output that would further minimize error rates between FEA and experimental. Additionally, design margins and factors of safety would generally cover the error rates expected from numerical analysis. Future work may involve utilizing different types of pre-preg and further varied hole dimensions to better understand how the FEA correlates with analytical and tensile test results. Other load types, such as bending, may also provide insight into how these materials behave under loading, thus furthering the conversation of whether numerical approximations may one day replace testing all together.
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Mashoof, M. "Dynamic modelling and analysis of tension structures with particular reference to guyed masts." Thesis, University of Westminster, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233061.

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Books on the topic "Tension Structures"

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London), International Oleg Kerensky Memorial Conference (1st 1988. Tension structures. [London]: Institution of Structural Engineers, 1988.

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Royal Institute of British Architects. and British Steel, eds. Tension structures. [London]: Royal Institute of British Architects, 1993.

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Wang, Binbing. Free-standing tension structures. London: Spon Press, 2004.

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W, Leonard John. Tension structures: Behavior and analysis. New York: McGraw-Hill, 1988.

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Lewis, Wanda J. Tension structures: Form and behaviour. London: Thomas Telford, 2003.

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Cao, J. Tension circular flange joints in tubular structures. Manchester: UMIST, 1995.

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Yang, Wei-shih. Tension loss in cable guiderail. Albany, N.Y: Engineering Research and Development Bureau, New York State Dept. of Transportation, 1992.

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E, Harris Charles, and United States. National Aeronautics and Space Administration., eds. Experimental verification of a progressive damage model for IM7/5260 laminates subjected to tension-tension fatigue. [Washington, D.C: National Aeronautics and Space Administration, 1995.

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Aula, Antti. The Method of Relaxation in the Analysis of Geometric Nonlinear Tension Structures. Oulu, Finland: University of Oulu, 1987.

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Technische Universität Kaiserlauten. Fachgebiet Tragwerksentwurf und Konstruktionen. Anschaulich: Tragwerkslehre experimentell 2002 - 2007. Kaiserslautern: Techn. Univ., Fachgebiet Tek, 2007.

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Book chapters on the topic "Tension Structures"

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Seward, Derek. "Tension." In Understanding Structures, 115–31. London: Macmillan Education UK, 1998. http://dx.doi.org/10.1007/978-1-349-14809-7_6.

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Seward, Derek. "Tension." In Understanding Structures, 103–17. London: Macmillan Education UK, 1994. http://dx.doi.org/10.1007/978-1-349-12083-3_6.

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Abu-Saba, Elias G. "Tension Members." In Design of Steel Structures, 14–45. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2079-5_2.

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He, Xiaoxu, and Mingyu Sun. "Biomimetic Form-Finding Study of Bone Needle Microstructure Based on Sponge Regeneration Behavior." In Computational Design and Robotic Fabrication, 90–101. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8405-3_8.

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AbstractThe concept of “nature-algorithm-structure” refers to a digital design method in architecture that draws inspiration from nature, extracting its mathematical and physical conceptual models to construct structural systems with parameters. This study aims to address the challenge of parametric form-finding in reticular tension structures. By observing the phenomenon of “sponge regeneration”, we further illustrate the generation and optimization of reticular tension structures through the hierarchical structures of “monomer”-“path”-“mesh”. Tensile structural systems are rebound forms, and their analytical models must account for their nonlinear characteristics and the existence of equilibrium self-course. Starting from the growth dynamics of “sponge regeneration behavior”, this paper extracts the logic behind it: sponge monomers combine randomly into partial units under the condition of shredding and discrete, forming a single organism through aggregation. The multi-dimensional bone needle serves as a structural component, enabling multi-axis reorganization, while the multi-directional mesh surface as a morphological component realizes multi-branch reproduction, forming a natural “network tension structure”. This study focuses on the biomimetic form-finding of bone needle microstructure, drawing inspiration from sponge regeneration behavior. By analyzing the growth dynamics of sponge regeneration, we aim to develop a better understanding of the principles behind the formation of bone needle microstructure. This finding provides significant reference for the development of modern structures and promotes the bioshape and optimization of tensile structures.
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Yeung, Y. C. T., and B. E. Parker. "Composite Tension Members for Structural Applications." In Composite Structures 4, 309–20. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3455-9_23.

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Hernández-Montes, Enrique, and Luisa María Gil-Martín. "Tension stiffening of concrete and embedded bar models." In Concrete Structures, 100–103. London: CRC Press, 2024. http://dx.doi.org/10.1201/9781003169659-7.

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Liddell, Ian. "Utilising Tension in Lightweight Structures." In Solid Mechanics and Its Applications, 139–53. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-015-9930-6_12.

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GangaRao, Hota V. S., and Woraphot Prachasaree. "Design of Pultruded FRP Axial Tension Members." In FRP Composite Structures, 245–67. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003196754-8.

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Kmet’, S., J. Farkas, and K. Jármai. "Optimization of tubular columns prestressed by tension ties." In Tubular Structures VII, 475–81. London: Routledge, 2022. http://dx.doi.org/10.1201/9780203735008-73.

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Kmet’, S., J. Farkas, and K. Jármai. "Optimization of tubular columns prestressed by tension ties." In Tubular Structures VII, 475–81. London: Routledge, 2022. http://dx.doi.org/10.1201/9780203735008-73.

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Conference papers on the topic "Tension Structures"

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MOHAGHEGH, M. "Tension analysis of stiffened aircraft structures." In 26th Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-795.

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SAYER, R. "Residual strength prediction for planked wing tension surfaces." In 27th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1986. http://dx.doi.org/10.2514/6.1986-941.

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Hasegawa, Daniel, Buse Aktaş, and Robert D. Howe. "Tension Jamming for Deployable Structures." In 2023 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). IEEE, 2023. http://dx.doi.org/10.1109/iros55552.2023.10342131.

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Dowswell, Bo, and Stacey Barber. "Shear Lag in Rectangular HSS Tension Members." In Structures Congress 2005. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40753(171)170.

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HERBERT, J., and E. BACHTELL. "Comparison of tension stabilized structures for large space antenna reflectors." In 27th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1986. http://dx.doi.org/10.2514/6.1986-876.

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Tibert, Gunnar. "Optimal Design of Tension Truss Antennas." In 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2003. http://dx.doi.org/10.2514/6.2003-1629.

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Mazurek, David F. "Evaluation of Common Method for Eyebar Tension Measurement." In Structures Congress 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41130(369)8.

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WISNOM, MICHAEL. "Delamination in tapered unidirectional glass fibre-epoxy under static tension loading." In 32nd Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-1142.

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Llorens, J. "Beyond bending: tension. Membrane structures II." In XI Textile Composites and Inflatable Structures. CIMNE, 2023. http://dx.doi.org/10.23967/c.membranes.2023.060.

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MISTRA, A. K. "TENSION CONTRDL OF LARGE SPACE STRUCTURES." In 23rd Aerospace Sciences Meeting. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-21.

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Reports on the topic "Tension Structures"

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McInerney, Michael, Matthew Brenner, Sean Morefield, Robert Weber, and John Carlyle. Acoustic nondestructive testing and measurement of tension for steel reinforcing members. Engineer Research and Development Center (U.S.), October 2021. http://dx.doi.org/10.21079/11681/42181.

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Many concrete structures contain internal post-tensioned steel structural members that are subject to fracturing and corrosion. The major problem with conventional tension measurement techniques is that they use indirect and non-quantitative methods to determine whether there has been a loss of tension. This work developed an acoustics-based technology and method for making quantitative tension measurements of an embedded, tensioned steel member. The theory and model were verified in the laboratory using a variety of steel rods as test specimens. Field tests of the method were conducted at three Corps of Engineers dams. Measurements of the longitudinal and shear velocity were done on rods up to 50 ft long. Not all rods of this length were able to be measured and the quality and consistency of the signal varied. There were fewer problems measuring the longitudinal velocity than shear velocity. While the tension predictions worked in the laboratory tests, the tension could not be accurately calculated for any of the field sites because researchers could not obtain the longitudinal or shear velocities in an unstressed state, or precise measurements of the longitudinal and shear velocities due to the unknown precise length of the rods in the tensioned state.
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Mukherjee, Ranjan, and Alejandro R. Diaz. Vibration Suppression Strategies for Large Tension-Aligned Array Structures. Fort Belvoir, VA: Defense Technical Information Center, November 2013. http://dx.doi.org/10.21236/ada593594.

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Bjella, Kevin, Daniel Vandevort, and Sarah Kopczynski. Preliminary testing of expedient ground anchor solutions for guyed towers in remote cold regions : considerations for cold remote regions with limited tools. Engineer Research and Development Center (U.S.), July 2023. http://dx.doi.org/10.21079/11681/47328.

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Ground anchors connected to guy wires for tower structures in cold climates suffer from frost heaving, which causes loss of wire tension and subsequent structural instability. It is necessary to understand what ground anchors are available to resist this tendency yet are still capable of expedient installation in remote areas. To that end, three metal, traditional ground-anchor types (arrowhead, bullet, and penetrating auger) and one novel polyvinyl chloride (PVC) T-post anchor were evaluated in frozen gravels and frozen silts at a research facility in Fairbanks, Alaska. Criteria included installation capability, failure loading, and removal ability. Additionally, expedient installation techniques for use in field conditions were also demonstrated. All three traditional ground anchors failed to penetrate frozen gravels. The penetrating auger also failed to penetrate frozen silts, but the arrowhead and bullet anchors did penetrate frozen silts with difficulty. The PVC anchor is capable of being installed only in a predrilled pilot hole. Under flexural load, the arrowhead anchor cable failed at 3686.72 lb, and the bullet anchor cable failed at 1753.44 lb. The PVC slid out of its hole at a direct-pull force of 1978.24 lb and failed under flexural stress at 202.32 lb.
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Pérez Urdiales, María, Analía Gómez Vidal, and Jesse Madden Libra. Pricing Determinants in the Water and Sanitation Sector: A Quick View of Heterogeneity in Latin America and the Caribbean. Inter-American Development Bank, March 2023. http://dx.doi.org/10.18235/0004796.

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The dual nature of water as a finite resource and as a basic human right creates a tension that presents important implications for water pricing. Water tariffs are a key tool used by policymakers to create incentive structures that promote efficient use; at the same time, they can create barriers to access and ignore waters socio-cultural value if not calibrated properly. This conflict between pricing as to reduce over-consumption and to guarantee accessibility exposes the difficulty of optimizing residential water pricing, and the importance of progressive tariff structures in building more resilient communities.Water policymakers view tariffs as an instrument to balance various objectives, such as efficiency, equity, cost recovery, and environmental preservation. However, these competing objectives mean that effective water tariff structures must be acutely customized to local contexts, a reality that is especially pertinent to Latin America and the Caribbean (LAC) due to its geographic and temporal heterogeneity in terms of water availability and demand. Prices can also be influenced by other factors. Four primary factor categories were identified as influential to water prices based on a comprehensive review of the price determination literature: (1) environmental factors, (2) urban factors, (3) political and ideological factors, and (4) management and institutional factors. The present brief examines how these factors theoretically impact pricing and what their status is throughout LAC, with the ultimate goal of providing a framework for future research.
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Murray, Matthew, Trace Thornton, Stephen Rowell, and Clifford Grey. Dynamic material properties of Grade 50 steel : effects of high strain rates on ASTM A992 and A572 Grade 50 steels. Engineer Research and Development Center (U.S.), August 2023. http://dx.doi.org/10.21079/11681/47445.

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Uniaxial tensile tests were conducted on American Society for Testing Materials International (ASTM) A992 and A572 Grade 50 steels at increasing strain rates to determine the material strength properties of structural members subjected to dynamic loadings. The increase in dynamic yield strength and ultimate tensile strength was determined to update design criteria within UFC 3-340-02, which are currently limited to ASTM A36 and A514 steels. The proposed updates will provide the necessary information required to design blast-resistant structures utilizing modern-day structural steels. The dynamic material properties determined by high-rate tensile tests were compared to static values obtained from ASTM E8 standard tensile tests. The comparisons were used to calculate dynamic increase factors (DIFs) for each steel at strain rates from 2E-3 to 2E0 inch/inch/second. The experiments revealed that the A992 steel exhibited an increase in yield strength up to 45% and ultimate tensile strength up to 20% as strain rate increased over the range tested. The A572-50 steel exhibited a similar increase in yield strength up to 35% and ultimate tensile strength up to 20%. The DIF design curves developed during this research will allow engineers to more efficiently design structural steel components of hardened structures for the protection of our nation’s critical infrastructure.
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Marinucci, Antonio. ACIP Pile Installation, Installation Monitoring, Full-scale Load Testing, and Extraction Program. Deep Foundations Institute, December 2017. http://dx.doi.org/10.37308/cpf-2016-acip-1.

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The Augered Cast-In-Place (ACIP) Pile Committee of the Deep Foundations Institute (DFI) performed a foundation installation, monitoring, performance and extraction program for ACIP piles in the fall of 2016. The purpose of the project was to demonstrate a fully monitored installation of instrumented 18 in (457 mm) and 24 in (610 mm) diameter ACIP piles, including automated monitoring equipment (AME); post-installation thermal integrity profiling (TIP) measurements; compression, tension, and lateral load testing (including monitoring of strain gages embedded along the compression pile shaft); and post-testing extraction of an installed pile for visual inspection. The program was initially planned by the ACIP Pile Committee, and a program site in Okahumpka, FL was selected. Initial funding was provided by the DFI Committee Project Fund with additional funds andin-kind pledges contributed from DFI members and industry partners. In the summer of 2016, the FloridaDepartment of Transportation (FDOT) and its research partners at the University of South Florida (USF)joined the program. Program details were finalized in the summer and fall of 2016. The purposes of this research effort were to demonstrate The fully monitored installation of instrumented ACIP piles, including the use of automated monitoring equipment (AME); The use and accuracy of thermal integrity profiling (TIP) methods with ACIP piles; The load-displacement behavior during compression, tension, and lateral load testing, including the use of and measurement by multiple strain gages embedded along the length of two piles; The integrity and as-constructed geometry of an ACIP pile by extracting an installed pile for visual inspection. To achieve the goals of the project, seven test piles were installed at a site in central Florida: two each for compression testing, tension testing, and lateral testing, and one pile for extraction and visual inspection. The intent of this document is to make the data and information obtained during the demonstration program available to the members of the DFI ACIP Pile Committee, Florida DOT, University of South Florida, and other possible research partners for review, analysis/interpretation, and discussion. The ultimate goals of this endeavor are to advance the overall state-of-the-practice for ACIP piles and to develop documentation for review and use; installation, monitoring, and testing methods; and reporting procedures to allow for both the use of ACIP piles for structural support of bridges and the inclusion of ACIP piles in DOT and other agency specifications in the state of Florida and elsewhere. All of the data presented and discussed herein can be made available in electronic format for additional analysis. Pertinent findings of the demonstration project include the following: The procedures and testing results described in the report highlight the successful installation, monitoring, and load carrying resistance provided by ACIP piles for structural support of bridges per the Florida DOT. The data can be used by the FL DOT as it develops a section for ACIP Piles for Bridges and Major Structures in its Standard Specifications; Grout volumes, as measured by an electromagnetic flowmeter and via manual counting of grout strokes, were in good agreement with each other; The overall grout volume of the extracted pile, when adjusted for the volume of grout observed flowing out of the top of the pile, was in good agreement with the volume calculated by manually measuring the circumference of the extracted pile at 1 ft (305 mm) intervals; Additional research into non-destructive testing (NDT) methods for ACIP piles, in particular Thermal Integrity Profiling, should produce a means to provide additional verification of pile integrity.
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Walshire, Lucas, Joseph Dunbar, and Benjamin Breland. Stability analysis of Old River Low Sill Structure. Engineer Research and Development Center (U.S.), September 2022. http://dx.doi.org/10.21079/11681/45349.

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An updated stability analysis was performed on the Old River Low Sill Structure due to a change in the operating conditions from historic river sedimentation. Sedimentation of the Mississippi River channel since the 1973 spring flood has caused higher river stages at lower discharges. Numerical methods used included nonlinear analysis of pile group stability, seepage analyses, and limit equilibrium methods. The structure’s foundation was compromised during the 1973 flood, and emergency repairs were conducted to prevent scouring and undermining of the foundation by the flood scour. Rehabilitation included the reconstruction of a failed wing wall on the left abutment, rock and riprap fill in the forebay channel, and emergency grouting to fill the scour hole beneath the structure. An operating restriction was emplaced to limit the differential head across the structure due to flood damage. Taking these conditions into account, results from an updated analysis showed that full headwater uplift caused increased tension in the piles, while the increased body load caused increased compressive loads in the piles. Review of piezometric monitoring and the seepage analyses showed that full headwater uplift is unlikely, indicating the foundation grouting adequately sealed the scour hole beneath the structure. Analysis results exhibited lower magnitude compression and tension loads in the piles with design load cases compared to previous analyses. Recommendations from these analyses indicate that increased monitoring and additional investigation may support increasing the differential head limitation.
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Fry, A. T., L. E. Crocker, M. J. Lodeiro, M. Poole, P. Woolliams, A. Koko, N. Leung, D. England, and C. Breheny. Tensile property measurement of lattice structures. National Physical Laboratory, July 2023. http://dx.doi.org/10.47120/npl.mat119.

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Weatherby, J. R., R. D. Krieg, and C. M. Stone. Incorporation of surface tension into the structural finite element code SANCHO. Office of Scientific and Technical Information (OSTI), March 1989. http://dx.doi.org/10.2172/6185598.

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Tennery, V. (Tensile strength measurement techniques for structural ceramics). Office of Scientific and Technical Information (OSTI), June 1990. http://dx.doi.org/10.2172/6837433.

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