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Journal articles on the topic 'Tee joints'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Gaines, Edward T. "Designing Partial-Penetration Tee Joints for Naval Ships." Journal of Ship Production 6, no. 01 (February 1, 1990): 27–34. http://dx.doi.org/10.5957/jsp.1990.6.1.27.

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This paper reviews development of weld design equations which can be used to analyze bevel partial-penetration tee joints. The method developed herein follows closely the development of equations for the design of square-edge partial-penetration tee joints which was presented at the 1986 Ship Production Symposium. For U.S. Navy ship design, technical authority is vested in the Naval Sea Systems Command (NAVSEA). The published NAVSEA design criteria for partial-penetration tee joints are so conservative that it is mathematically impossible to design a conventional, 100 percent efficient partial-penetration bevel tee joint. With a more rigorous engineering analysis, the alternative method for bevel joints outlined in this paper might be an acceptable replacement for the simple, though unduly conservative existing design criteria.

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2

Dulieu-Barton, J. M., J. S. Earl, and R. A. Shenoi. "Determination of the stress distribution in foam-cored sandwich construction composite tee joints." Journal of Strain Analysis for Engineering Design 36, no. 6 (August 1, 2001): 545–60. http://dx.doi.org/10.1243/0309324011514700.

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The stresses in sandwich construction tee joints are determined using both experimental and numerical techniques. The features of interest in the tee joint are the use of a boundary angle laminate which reinforces the connection between the two component parts of the tee joint, the use of a fillet at the connection and the effect of any gap at the join. The experimental approach is thermoelastic stress analysis (TSA) based on the use of the SPATE (stress pattern analysis by thermal emissions) equipment. Techniques for calibrating the constituent parts of the joint are described so that quantitative stress values can be obtained from the TSA. A detailed finite element study of the tee joints is also carried out, the results of which are compared with the experimental data.

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3

Watanabe, Eiichi, Takashi Yamaguchi, Kunitomo Sugiura, and Shun-ichiro Kasai. "Fatigue Behavior on Split tee Flange Joints." Doboku Gakkai Ronbunshu, no. 537 (1996): 133–44. http://dx.doi.org/10.2208/jscej.1996.537_133.

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4

Li, W., L. Blunt, and K. J. Stout. "Stiffness analysis of adhesive bonded Tee joints." International Journal of Adhesion and Adhesives 19, no. 4 (August 1999): 315–20. http://dx.doi.org/10.1016/s0143-7496(99)00007-x.

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5

Zhu, Li Hong, Rui He Wang, Yong Huang, and Jing Yin Wang. "Based on Particle Size of Cuttings to Study the Erosion of the Plugged Tee in Air Drilling." Applied Mechanics and Materials 607 (July 2014): 193–96. http://dx.doi.org/10.4028/www.scientific.net/amm.607.193.

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Plugged tee is the easilyworn part of an exhaust pipe during air drilling because of the flow of the compressed air with the entrained cutting particles. The effects of the particle size on the erosion of the plugged tee are studied by computational fluid dynamics (CFD). Mathematical models of the flow of the compressed air with the entrained cutting particles through the plugged tee are built and imported into the CFD through embedding procedures. After boundary conditions and the parameter of the particle size are given, the motion paths of cuttings in the different particle size in the plugged tee and its effects on erosion of the plugged tee are obtained. Erosions in the plugged tee are mainly distributed in the wall of the buffer segment and the joints and mainly caused by the scope of the particle size of cuttings. The motion paths and the residence time of cuttings with different particle size are different, so the erosions of the joints and the buffer segment are different.

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6

Ren, Jun Jie, Wei Feng Ma, Xue Liang He, An Qi Chen, Jin Heng Luo, Ke Wang, Qiu Rong Ma, and Chun Yong Huo. "Mechanical Properties of Girth Weld with Different Butt Materials Severed for Natural Gas Station." Materials Science Forum 944 (January 2019): 821–27. http://dx.doi.org/10.4028/www.scientific.net/msf.944.821.

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Weld samples imitating the inservice girth welds in station (L245 straight pipe jointed to WPHY-70 tee joint and L415MB straight pipe jointed to WPHY-80 tee joint) were prepared. Tensile, bending, impact toughness and hardness of the joints were investigated. Results show that under tensile or bending load, failure occurred from the side with lower grade and smaller wall thickness. Relatived to the lower grade side, the weld seam is strong match. Significant change of impact toughness can be found in weld seam center and the heat affected zones (HAZ). The impact energy of seam center is the lowest in the weld joint. The impact energy show a trend of increase from seam center to base metal. In HAZ zone, impact toughness of the fusion line is the lowest. Impact toughness of higher grade side is higher than that of the lower grade side. Hardness of positions in HAZ zones are different distinctly. From coarse grained region to fine grained region, the hardness decrease. For the in-station girth welds jointed with different materials, lower grade and samller wall thickness side should be intensive monitored.

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7

Dawe, J. L., B. S. Pond, and G. Y. Grondin. "Interaction of shear and tension in welded truss connections." Canadian Journal of Civil Engineering 12, no. 1 (March 1, 1985): 94–103. http://dx.doi.org/10.1139/l85-010.

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In many truss joints consisting of double-angle web members welded to stems of inverted lower chord tee sections, adequate fillet weld lengths may be provided without the need for gusset plates. In such cases where a joint may also be subjected to high combinations of shear and tension, the possibility of overstressing of a tee stem exists. In the investigation of this problem, four analytical techniques, including two proposed herein, and experimental results of 30 full-scale specimen tests, 22 of which were conducted during the investigation presented herein, are presented and evaluated. Analytical and experimental results indicate that the interaction of shear and normal stresses is an important consideration in the design of such joints and that an interaction check is required.Of the many parameters investigated as part of the experimental investigation, the two that most significantly influence the magnitude of tension force that a lower chord can simultaneously carry are the magnitude of applied shear force averaged over the available web shear area and the joint configuration itself. The inclination of a diagonal web member as well as intentional joint eccentricities have little effect on the strength of these joints, although joint ductility appears to be affected by eccentricities.Although all four analytical techniques have similar overall accuracies of prediction, a method based on applying a von Mises criterion at ultimate to determine an equivalent shear area in a tee chord is recommended as being the most suitable. Based on this method, as verified and validated by comparison with extensive experimental results of tests on full-scale specimens, a simplified design curve and associated equations are developed and proposed for design office use. Key words: connection, interaction, shear, tension, welded, truss.

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8

Li, W., L. Blunt, and K. J. Stout. "Analysis and design of adhesive-bonded tee joints." International Journal of Adhesion and Adhesives 17, no. 4 (November 1997): 303–11. http://dx.doi.org/10.1016/s0143-7496(97)00012-2.

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9

Read, P. "Fatigue behaviour of single skin FRP tee joints." International Journal of Fatigue 21, no. 3 (March 1999): 281–96. http://dx.doi.org/10.1016/s0142-1123(98)00075-9.

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10

Skopinskii, V. N., and A. V. Kazachkin. "Theoretical and experimental analysis of crimped tee joints." Strength of Materials 26, no. 11 (November 1994): 841–45. http://dx.doi.org/10.1007/bf02216116.

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11

Silva, Diogo FM, Ivo MF Bragança, Carlos MA Silva, Luis M. Alves, and Paulo AF Martins. "Joining by forming of additive manufactured ‘mortise-and-tenon’ joints." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 233, no. 1 (July 27, 2017): 166–73. http://dx.doi.org/10.1177/0954405417720954.

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This article is aimed at extending the ‘mortise-and-tenon’ joining concept commonly utilized in corner or tee joints to lap joints in which one sheet is partially placed over another without any change in their shape. The approach makes use of wire arc additive manufacturing to fabricate the tenons and allows various shapes and thicknesses to be made from a wide range of metallic materials. Upset compression of the tenons is utilized to mechanically lock the two sheets being joined. Experimental and finite element simulation works performed with monolithic (aluminium–aluminium) and hybrid (aluminium–polymer) ‘unit cells’ consisting of a single lap joint are utilized to investigate the deformation mechanics and the feasibility of the new proposed joining process. Tensile-shear loading tests were carried out to determine the maximum force that the new proposed joints are capable to withstand without failure. Pull-out forces of approximately 8 and 6 kN for the monolithic and hybrid joints allow concluding on the potential of additive manufactured ‘mortise-and-tenon’ lap joints to connect sheets made from similar and dissimilar materials.

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12

Soroushian, Siavash, Arash E. Zaghi, Manos Maragakis, Alicia Echevarria, Yuan Tian, and Andre Filiatrault. "Analytical Seismic Fragility Analyses of Fire Sprinkler Piping Systems with Threaded Joints." Earthquake Spectra 31, no. 2 (May 2015): 1125–55. http://dx.doi.org/10.1193/083112eqs277m.

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For the first time, an analytical modeling methodology is developed for fire sprinkler piping systems and used to generate seismic fragility parameters of these systems. The analytical model accounts for inelastic behavior constituents of the system, including: threaded joints, solid braces, hangers, and restrainers. The model incorporates a newly developed hysteresis model for threaded tee joints that is validated by the experimental results of several tee subassemblies. The modeling technique at the subsystem level is validated by using the experimental results of a sprinkler piping system. The methodology is used to obtain the seismic response of the fire sprinkler piping system of University of California, San Francisco Hospital under a suite of 96 artificially generated triaxial floor acceleration histories. After the component fragility parameters are obtained for the components of the system, three system-level damage states are defined, and a joint probabilistic seismic demand model is utilized to develop system fragility parameters.

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13

Yang, Hong, Y. X. Zhang, and Xiaoshan Lin. "Stress analyses of composite tee joints at elevated temperature." Journal of Adhesion Science and Technology 27, no. 17 (September 2013): 1899–910. http://dx.doi.org/10.1080/01694243.2013.764706.

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14

Blake, J. I. R., R. A. Shenoi, J. House, and T. Turton. "Progressive damage analysis of tee joints with viscoelastic inserts." Composites Part A: Applied Science and Manufacturing 32, no. 5 (May 2001): 641–53. http://dx.doi.org/10.1016/s1359-835x(00)00158-5.

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15

Phillips, H. J., and R. A. Shenoi. "Damage tolerance of laminated tee joints in FRP structures." Composites Part A: Applied Science and Manufacturing 29, no. 4 (January 1998): 465–78. http://dx.doi.org/10.1016/s1359-835x(97)00081-x.

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16

Tazarv, Mostafa, Lucas Bohn, and Nadim Wehbe. "Rehabilitation of Longitudinal Joints in Double-Tee Girder Bridges." Journal of Bridge Engineering 24, no. 6 (June 2019): 04019044. http://dx.doi.org/10.1061/(asce)be.1943-5592.0001412.

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17

Apalak, Z. Gul, M. Kemal Apalak, and R. Davies. "Analysis and design of tee joints with double support." International Journal of Adhesion and Adhesives 16, no. 3 (January 1996): 187–214. http://dx.doi.org/10.1016/0143-7496(96)87013-8.

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18

Nazarov, V. I., S. V. Baranov, and A. I. Levin. "Deformation conditions in high-pressure forged-welded tee joints." Chemical and Petroleum Engineering 24, no. 6 (June 1988): 268–70. http://dx.doi.org/10.1007/bf01179288.

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19

Shenoi, R. A., and F. L. M. Violette. "A Study of Structural Composite Tee Joints in Small Boats." Journal of Composite Materials 24, no. 6 (June 1990): 644–66. http://dx.doi.org/10.1177/002199839002400604.

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20

Nowacki, J., M. Urbański, and P. Zając. "Mechanised and automated welding of tee joints with butt welds." Welding International 22, no. 5 (May 2008): 310–20. http://dx.doi.org/10.1080/09507110802200580.

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21

Panigrahi, S. K., and Y. X. Zhang. "Nonlinear finite element analyses of tee joints of laminated composites." IOP Conference Series: Materials Science and Engineering 10 (June 1, 2010): 012097. http://dx.doi.org/10.1088/1757-899x/10/1/012097.

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22

Shenoi, R. A., P. J. C. L. Read, and G. L. Hawkins. "Fatigue failure mechanisms in fibre-reinforced plastic laminated tee joints." International Journal of Fatigue 17, no. 6 (1995): 415–26. http://dx.doi.org/10.1016/0142-1123(95)98238-x.

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23

Bartnicki, Jarosław. "Numerical modelling of T-pipe joints forming." MATEC Web of Conferences 190 (2018): 04005. http://dx.doi.org/10.1051/matecconf/201819004005.

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This paper presents results of numerical calculations of T-pipe joints (tee) forming process for a wide scope of industrial applications. FEM analyses were conducted for the chosen process technological parameters and tools designs. The kinematics of metal flow in the area of the formed flanges was analysed. Distributions of stresses, strains and damage criterion during forming were determined. Calculated values of forces and moments acting on tools and workpieces allow for designing of tools geometry for experimental verification of the proposed forming process.

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24

Kang, C. T., D. G. Moffat, and J. Mistry. "Ultimate strength of a double-tee tubular joint subjected to combined chord compression and brace out-of-plane bending." Journal of Strain Analysis for Engineering Design 33, no. 5 (July 1, 1998): 385–94. http://dx.doi.org/10.1243/0309324981513084.

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The effects of chord axial compression on the ultimate strength of a double-tee (DT) tubular joint subjected to brace out-of-plane bending have been studied both experimentally and numerically. The results from four experimental tests with different levels of chord compression are presented, together with the results of a parametric study using non-linear finite element procedures. The results are compared with the American Petroleum Institute's design rules for DT joints subjected to combined brace and chord loading.

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25

Toya, Atsuhi, Masaki Shimazu, Shinji Umeda, and Satoshi Nishikawa. "Recent technologies of joints for HV and EHV XLPE cables in Japan." IEEJ Transactions on Electrical and Electronic Engineering 2, no. 5 (2007): 523–30. http://dx.doi.org/10.1002/tee.20204.

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26

Tian, Yuan, Andre Filiatrault, and Gilberto Mosqueda. "Experimental Seismic Fragility of Pressurized Fire Suppression Sprinkler Piping Joints." Earthquake Spectra 30, no. 4 (November 2014): 1733–48. http://dx.doi.org/10.1193/111011eqs278m.

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Pressurized fire suppression sprinkler piping is a critical nonstructural system that must remain operational after an earthquake, particularly in critical facilities. Observations from past earthquakes have demonstrated that the locations most susceptible to damage in sprinkler piping systems are the joints, sprinkler heads, support hangers, and bracing systems. However, field observations and previous experimentations are insufficient to fully characterize the response of sprinkler piping systems under seismic actions and to develop effective solutions to improve their performance. This paper presents the results of an experimental program designed to evaluate the seismic behavior of sprinkler piping joints. Forty-eight tee joints made of various materials (black iron with threaded joints, thermoplastic (CPVC) with cement joints, and steel with groove-fit connections) and nominal diameters (¾ in. to 6 in.) were tested under reverse cyclic loading to determine their rotational capacities at which leakage and/or fracture occur. The ATC-58 framework is applied to develop a seismic fragility database for pressurized fire suppression sprinkler joints considering joint rotation as the demand parameter. Fragility functions in terms of more global demand parameters, such as floor accelerations, can be developed using data presented here combined with structural analysis models of sprinkler piping systems.

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27

Pecknold, David, Peter Marshall, and Justin Bucknell. "New API RP2A Tubular Joint Strength Design Provisions." Journal of Energy Resources Technology 129, no. 3 (April 6, 2007): 177–89. http://dx.doi.org/10.1115/1.2748811.

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The development of the new API RP2A (22nd edition) parametric static strength prediction equations for planar circular hollow section tubular joints is described. Prediction equations are presented for brace axial, brace in-plane bending, and brace out-of-plane bending loads. The prediction equations are based on screened test databases, augmented, and extended by an extensive new series of validated nonlinear finite element simulations for nonoverlapping K joints, double tee (DT/X) joints, and T joints. The increased reliability (reduced scatter) provided by the new static strength formulation was used to justify a reduction of the load factor of safety to 1.6 from the previous value of 1.7.

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28

Arockiasamy, M., A. P. Badve, B. V. Rao, and D. V. Reddy. "Fatigue Strength of Joints in a Precast Prestressed Concrete Double Tee Bridge." PCI Journal 36, no. 1 (January 1, 1991): 84–97. http://dx.doi.org/10.15554/pcij.01011991.84.97.

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29

Sritharan, Sri. "Strut-and-Tie Analysis of Bridge Tee Joints Subjected to Seismic Actions." Journal of Structural Engineering 131, no. 9 (September 2005): 1321–33. http://dx.doi.org/10.1061/(asce)0733-9445(2005)131:9(1321).

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30

Blasi, Gianni, Maria Antonietta Aiello, Giuseppe Maddaloni, and Maria Rosaria Pecce. "Seismic response evaluation of medical gas and fire-protection pipelines’ Tee-Joints." Engineering Structures 173 (October 2018): 1039–53. http://dx.doi.org/10.1016/j.engstruct.2018.07.045.

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31

Knysh, V. V., S. A. Solovej, L. I. Nyrkova, L. G. Shitova, and A. A. Kadyshev. "Influence of corrosion damage on cyclic fatigue life of tee welded joints treated by high-frequency mechanical peening." Paton Welding Journal 2016, no. 9 (September 28, 2016): 42–46. http://dx.doi.org/10.15407/tpwj2016.09.09.

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32

Niklas, Karol, and Janusz Kozak. "Influence of the Notch Rounding Radius on Estimating the Elastic Notch Stress Concentration Factor in a Laser Welded Tee Joint." Materials Science Forum 726 (August 2012): 100–105. http://dx.doi.org/10.4028/www.scientific.net/msf.726.100.

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In recent years an increased interest of industry in sandwich-type metal structures can be observed. These structures consist of thin plates of 2.5 mm in thickness separated by stiffeners of different shapes and forms. Welds joining the plates and stiffeners are made on the outer side of the plates using laser welding technique. A locally focused source of heat causes the plate to melt creating a very narrow and elongated joint. As a result, sharp geometric notches are formed on the side of the root of a weld – a place which is inaccessible and cannot be checked. Geometries of individual welded joints vary, sometimes considerably, and this makes their analysis even more complicated. Additionally, the use of laser welding technique influences the formation of untypical distribution of changes in material properties in weld zones. The effect is a joint whose behaviour under load is significantly different from the behaviour of a welded tee joint made with the use of classical methods. Fatigue strength calculations for this type of joints can be conducted based on local stress values in notches, which can be determined with the use of Finite Element Method (FEM). This article analyses the influence of the notch rounding radius on the elastic notch stress concentration factor Kt The aim of the analysis is to evaluate the notch stress concentration according to local notch stress approach.

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33

LUO, Chuyang, and Junjiang XIONG. "Static Pull and Push Bending Properties of RTM-made TWF Composite Tee-joints." Chinese Journal of Aeronautics 25, no. 2 (April 2012): 198–207. http://dx.doi.org/10.1016/s1000-9361(11)60379-8.

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34

Latour, M., and G. Rizzano. "Design of X-shaped double split tee joints accounting for moment–shear interaction." Journal of Constructional Steel Research 104 (January 2015): 115–26. http://dx.doi.org/10.1016/j.jcsr.2014.10.015.

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35

Khimchenko, N. V., V. V. Volokitin, V. A. Bobrov, and V. I. Mulyukin. "Ultrasonic monitoring of welded angle-butt and tee joints in high-alloy steels." Chemical and Petroleum Engineering 23, no. 7 (July 1987): 356–60. http://dx.doi.org/10.1007/bf01149952.

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36

Sivtsev, M. N., and I. T. Savvinov. "The resistance of welded tee joints to cold crack formation at low temperatures." Welding International 19, no. 1 (January 2005): 78–80. http://dx.doi.org/10.1533/wint.2005.3417.

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37

Francavilla, Antonella Bianca, Massimo Latour, Gianvittorio Rizzano, Jean-Pierre Jaspart, and Jean-Francois Demonceau. "On the Robustness of Earthquake-Resistant Moment-Resistant Frames: Influence of Innovative Beam-to-Column Joints." Open Construction and Building Technology Journal 12, no. 1 (March 23, 2018): 101–11. http://dx.doi.org/10.2174/1874836801812010101.

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Background: The deformation capacity of beam-to-column connections strongly influences the robustness of earthquake-resistant Moment Resistant Frames (MRFs) when subjected to a loss-of column scenario. As a consequence, with the aim of foresee the structural response up to the failure, an accurate modelling of the ultimate behaviour of the joints is needed. Objective: In this paper, the influence of the connections on the behaviour of MRFs under a loss-of-column scenario has been analysed considering an accurate modelling of the joints. Method: In addition, in order to achieve this goal, different beam-to-column joints designed for seismic actions and tested at the Salerno University, have been modelled and introduced in a case-study structure, whose response has been evaluated by means of push-down analyses. In particular, the connections analysed and modelled are of three different types: a dog-bone connection, a partial strength Double Split Tee (DST) joint and a partial strength connection with friction dampers. Results / Conclusion: The results of pushdown analyses performed by means of SAP2000 computer software have been examined with the aim to determine the Residual Reserve Strength Ratio (RRSR) index that, combined with the energy balance method proposed by Izzudin et al. (2008), allow to assess the structural ro-bustness.

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38

Steel, John A. "Elastic Wave Transmission between Walls in Framed Buildings." Building Acoustics 3, no. 1 (March 1996): 55–66. http://dx.doi.org/10.1177/1351010x9600300105.

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The majority of framed buildings have joints between walls with a column running along the joint. Recent work has identified the importance of the column which generally reduces sound transmission between walls at high frequencies. In this work the effects of incident longitudinal or transverse waves as well as flexural waves at a joint with a column is studied together with the effects of an eccentricity. For incident flexural waves the importance of deformation of a column cross section due to shear forces on connected plates has been identified. In this work all of these properties are considered and effects on predicted sound transmission through framed buildings are demonstrated for each of the three wave types. Solutions for transmission coefficients for bending, longitudinal and transverse shear waves at inline, corner cross and tee joints are obtained. The results satisfy reciprocity conditions. It is important to know what properties of the column have greatest effect on transmission so that the overall performance of buildings can be improved. The effects of varying the column cross section, materials properties and eccentricity are studied. Of these, variations in column dimensions produce the largest changes in transmission while typical variations in material properties and eccentricity are not important.

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39

Sikström, Fredrik, and Morgan Nilsen. "Beam offset detection in laser stake welding of tee joints based on photodetector sensing." Procedia Manufacturing 36 (2019): 64–71. http://dx.doi.org/10.1016/j.promfg.2019.08.010.

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40

Khazhinskii, G. M., and G. A. Vompe. "Fatigue life of welded tee-joints subjected to two-frequency pulsations of internal pressure." Strength of Materials 28, no. 1 (January 1996): 33–36. http://dx.doi.org/10.1007/bf02209096.

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41

Knysh, V. V., S. O. Solovei, L. L. Nyrkova, A. O. Gryshanov, and V. P. Kuzmenko. "Impact of high-frequency peening and moderate climate atmosphere on cyclic fatigue life of tee welded joints with surface fatigue cracks." Paton Welding Journal 2020, no. 1 (January 28, 2020): 37–42. http://dx.doi.org/10.37434/tpwj2020.01.05.

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42

Afefy, Hamdy M., Khaled Sennah, Siyin Tu, Mohamed Ismail, and Reza Kianoush. "Development and study of deck joints in prefabricated concrete bulb-tee bridge girders: Experimental evaluation." Bridge Structures 11, no. 1,2 (July 28, 2015): 55–71. http://dx.doi.org/10.3233/brs-150086.

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43

Sennah, Khaled, and Hamdy M. Afefy. "Development and study of deck joints in prefabricated concrete bulb-tee bridge girders: Conceptual design." Bridge Structures 11, no. 1,2 (July 28, 2015): 33–53. http://dx.doi.org/10.3233/brs-150087.

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44

Gul Apalak, Z., M. Kemal Apalak, and R. Davies. "Analysis and design of adhesively bonded tee joints with a single support plus angled reinforcement." Journal of Adhesion Science and Technology 10, no. 8 (January 1996): 681–724. http://dx.doi.org/10.1163/156856196x00616.

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45

Knysh, V. V., S. A. Solovej, L. I. Nyrkova, L. G. Shitova, and A. A. Rybakov. "Improvement of cyclic fatigue life of tee welded joints by high-frequency mechanical peening under the conditions of higher humidity and temperature." Paton Welding Journal 2016, no. 3 (March 28, 2016): 12–17. http://dx.doi.org/10.15407/tpwj2016.03.02.

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46

Abokifa, Mohamed, and Mohamed A. Moustafa. "Experimental behavior of poly methyl methacrylate polymer concrete for bridge deck bulb tee girders longitudinal field joints." Construction and Building Materials 270 (February 2021): 121840. http://dx.doi.org/10.1016/j.conbuildmat.2020.121840.

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47

Abokifa, Mohamed, and Mohamed A. Moustafa. "Full-scale testing of non-proprietary ultra-high performance concrete for deck bulb tee longitudinal field joints." Engineering Structures 243 (September 2021): 112696. http://dx.doi.org/10.1016/j.engstruct.2021.112696.

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48

Ivanov, I. I. "Analysis of methods of automatic control of the process of resistance welding of tee joints in small components." Welding International 18, no. 1 (January 2004): 66–70. http://dx.doi.org/10.1533/wint.2004.3247.

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Knysh, V. V., S. A. Solovej, L. I. Nyrkova, L. G. Shitova, and A. A. Kadyshev. "Influence of corrosion damage on cyclic fatigue life of tee welded joints treated by high-frequency mechanical peening." Автоматическая сварка 2016, no. 9 (September 28, 2016): 46–51. http://dx.doi.org/10.15407/as2016.09.09.

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Samuelsson, Sandra, Charles Kennergren, and Magnus Rasmussen. "A Case of Pacemaker Endocarditis Caused by Aerococcus urinae." Case Reports in Infectious Diseases 2018 (2018): 1–3. http://dx.doi.org/10.1155/2018/9128560.

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Abstract:

Background. Aerococcus urinae has lately been acknowledged as a cause of infective endocarditis (IE) especially in older males with underlying urinary tract disorders. In this population, cardiac implanted electronical devices (CIED) are not uncommon, but despite the capacity of A. urinae to form biofilm in vitro, no cases of aerococcal CIED infections have been reported to date. Case Presentation. An 84-year-old male with pacemaker was admitted with dysuria one month after a transurethral procedure for urinary bladder cancer. A. urinae was isolated from urine and blood. Transesophageal echocardiography (TEE) was without signs of vegetation on valves or pacing cables. The patient was treated with a twelve-day course of β-lactam antibiotics. Forty days after the initial admission, the patient was readmitted due to malaise, general pain of the joints, chills, and renewed blood cultures grew A. urinae. TEE demonstrated a 10 × 5 mm vegetation on either the tricuspid valve or one of the pacing cables. The pacemaker system was completely removed and demonstrated macroscopic signs of infection. A temporary system was implanted, and after 14 days of penicillin G treatment, a new system permanent system was implanted. Total treatment time was 40 days. Recovery was uneventful. Conclusion. This report demonstrates that A. urinae can cause CIED infection. In patients with A. urinae bacteremia and a CIED, this risk must be considered, especially if bacteremia reoccurs.

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