Academic literature on the topic 'Anchor rail'

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Journal articles on the topic "Anchor rail"

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Jensen, Joergen L., Giuseppe Caprolu, and Ulf Arne Girhammar. "Fracture Mechanics Models for Brittle Failure of Bottom Rails due to Uplift in Timber Frame Shear Walls." Advances in Civil Engineering 2016 (2016): 1–21. http://dx.doi.org/10.1155/2016/9402650.

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In partially anchored timber frame shear walls, hold-down devices are not provided; hence the uplift forces are transferred by the fasteners of the sheathing-to-framing joints into the bottom rail and via anchor bolts from the bottom rail into the foundation. Since the force in the anchor bolts and the sheathing-to-framing joints do not act in the same vertical plane, the bottom rail is subjected to tensile stresses perpendicular to the grain and splitting of the bottom rail may occur. This paper presents simple analytical models based on fracture mechanics for the analysis of such bottom rail
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Altuntas, Mehmet, Ozlem Salman, and Cevat Erdem Imrak. "Experimental Stress Analysis of Elevator Guiding Equipment." Key Engineering Materials 572 (September 2013): 177–80. http://dx.doi.org/10.4028/www.scientific.net/kem.572.177.

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Guide rails which take place in structure of elevator, are the important elements for safety of elevator systems. They have attached together end to end with the fishplates and bolts, and are anchored to wall with brackets. Connections between guide rails and brackets are provided by clips. To ensure the safe operation of elevators, the guide rails, fishplates, brackets, bolts, clips have enough strength against to loads and forces which affect these elements. In this study, shear tests are performed to examine mechanical properties of bolts and clips which are used guide rail anchor element.
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Cho, Sanghyeon, Kyoung-Chan Lee, Seung Yup Jang, Ilwha Lee, and Wonseok Chung. "Sequential Track–Bridge Interaction Analysis of Quick-Hardening Track on Bridge Considering Interlayer Friction." Applied Sciences 10, no. 15 (2020): 5066. http://dx.doi.org/10.3390/app10155066.

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A quick-hardening track (QHT) was developed by injecting quick-hardening mortar into an existing ballast track to rapidly substitute the ballast track with a slab track, thereby improving maintainability and running safety. QHT tracks on a bridge undergo track–bridge interactions similar to other track systems. This paper presents a model to analyze the interaction between the QHT and the bridge. This model considers the longitudinal resistances of rail fasteners and anchors, as well as the interlayer friction between the track and the bridge. A sequential analysis method was applied to system
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Lang, Daniel, and Donald W. Radford. "Design Optimization of a Composite Rail Vehicle Anchor Bracket." Urban Rail Transit 7, no. 2 (2021): 84–100. http://dx.doi.org/10.1007/s40864-021-00144-9.

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AbstractThe rail transportation sector is currently seeking to decrease greenhouse gas emissions by incorporating composite materials that can reduce the mass of vehicles. During early adoption of composites in the rail transportation industry, these materials have predominantly been applied to simple design geometries and lightly loaded structures, have been optimized only through modification of composite thickness and composite layer shape, and have only been constrained with respect to a single mechanical performance metric. This study investigates the use of finite element analysis softwa
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Govorukha, V. V., V. K. Kizilov, T. P. Sobko, and L. P. Semidetnaia. "Forming of anchor intermediate rail fastening of innovative technical level." Geo-Technical mechanics, no. 140 (2018): 130–42. http://dx.doi.org/10.15407/geotm2018.03.130.

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Ma, Chi, Guo Nan Liu, and Yue Ying Liang. "The Application of Anchor Block in Large Soft Foundation Pit Excavation." Applied Mechanics and Materials 170-173 (May 2012): 520–24. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.520.

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Based on pit excavation of Shenzhen Airport Rail transport hub project, combined with anchorage stress characteristics, difficulties was studied and numerical calculation for the envelope structure was undertaken. The successful application of design provides new ideas, improved design methods for super soft soil foundation engineering, which can greatly promote the application and development of anchor block in soft foundation excavation.
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Li, Hong Xia, Yong Wei Wang, and Gao Kui Fang. "Double-Row Composite Anchor Bolt Design and Construction Monitoring Analysis of Green Building." Applied Mechanics and Materials 580-583 (July 2014): 596–600. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.596.

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Zhengzhou East Green high-speed rail block D6 site supporting of deep foundation pit engineering, double row pile composite retaining structure design and data analysis. Through specific examples of projects, based on the measured data shows that support form of the rationality and practicality.
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Choi, Jungyoul, and Byungmin Kim. "Failure analysis of anchor bolt of rail fastening system for direct fixation track." Engineering Failure Analysis 112 (May 2020): 104513. http://dx.doi.org/10.1016/j.engfailanal.2020.104513.

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Faller, Ronald K., Dean L. Sicking, Karla A. Polivka, John R. Rohde, and Bob W. Bielenberg. "Long-Span Guardrail System for Culvert Applications." Transportation Research Record: Journal of the Transportation Research Board 1720, no. 1 (2000): 19–29. http://dx.doi.org/10.3141/1720-03.

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A long-span guardrail for use over low-fill culverts was developed and successfully crash tested. The guardrail system was configured with 30.48 m of nested, 12-gauge W-beam rail and centered around a 7.62-m-long unsupported span. The nested W-beam rail was supported by 16 W152×13.4 steel posts and 6 standard CRT posts, each with two 150-mm×200×360 mm wood block-outs. Each post was 1830 mm long. Post spacings were 1905 mm on center, except for the 7.62-m spacing between the two CRT posts surrounding the long span. The research study included computer simulation modeling with Barrier VII and fu
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Sicking, Dean L., John D. Reid, and John R. Rohde. "Development of a Sequential Kinking Terminal for W-Beam Guardrails." Transportation Research Record: Journal of the Transportation Research Board 1647, no. 1 (1998): 89–96. http://dx.doi.org/10.3141/1647-11.

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A new tangent energy-absorbing W-beam guardrail terminal that meets NCHRP Report 350 criteria has been developed. The terminal, designated the SKT-350, dissipates the energy of an encroaching vehicle by producing a series of plastic hinges in the W-beam as the terminal head is pushed down the guardrail. This energy-absorption concept allows for significantly lower dynamic forces on the encroaching vehicle, reducing the vehicle damage, the weight of the terminal head, the propensity for vehicle yaw and roll after impact, and the chances of buckling in the W-beam section. The energy required to
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Dissertations / Theses on the topic "Anchor rail"

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Alkrdi, Bashar, and Jonas Lindberg. "Ankarskenor i byggandet." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20944.

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Vårt examenarbete om ankarskenor i byggandet omfattar implementering av en ny teknik i byggandet i form av föringjutna ankarskenor för installationer av VS rör, ventilation, sprinkler och EL. I en allt mer globaliserad värld råder en allt högre konkurrensutsatt marknad, vilket gör att det också ställs högre krav på entreprenörerna inom byggsektorn. Att man inom produktionen ägnar sig åt aktiviteter som inte tillfört något värde till slutprodukten klassas som slöseri. Konsten att effektivisera sina arbetsmetoder för att därmed uppnå en mer effektiv produktion, samt minska rådande slöseri anses
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Caprolu, Giuseppe. "Evaluation of Splitting Capacity of Bottom Rails in Partially Anchored Timber Frame Shear Walls." Doctoral thesis, Luleå tekniska universitet, Byggkonstruktion och -produktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26560.

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The horizontal stabilization of timber frame buildings is oftenprovided by shear walls. Plastic design methods can be used todetermine the load-carrying capacity of fully and partially anchoredshear walls. In order to use these methods, a ductile behaviour of thesheathing-to-framing joint must be ensured. If hold-downs are notprovided, the vertical uplifting forces are transferred to the substrate bythe fasteners of the sheathing-to-framing joints. Since the forces in theanchor bolts and the sheathing-to-framing joints do not act in the samevertical plane, the bottom rail will be subjected to
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Vosika, Jan. "Rám kabiny výtahu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229226.

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This thesis deals with the structural design of the rope traction elevator load 1600 kg. Calculation of anchor guides for the design and strength check. Frame analysis by finite element method. Frame design changes with regard to reliability design. The work also includes drawing the proposed changes. This thesis was carried out in cooperation with the firm Liftmont CZ s.r.o.
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Book chapters on the topic "Anchor rail"

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Clayfield, Anna. "The Revolution Under Raúl." In The Guerrilla Legacy of the Cuban Revolution. University Press of Florida, 2019. http://dx.doi.org/10.5744/florida/9781683400899.003.0007.

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This chapter investigates the on-going legacy of the guerrilla struggle between 2006 and 2018, the period of Raúl Castro’s tenure as Cuban President. It argues that, while many foreign commentators viewed the political, social, and economic change of these years as evidence that the Revolution and its socialist model were on the way out, the discursive phenomenon of guerrillerismo still very much anchored it in the past. Such an anchor remained of high importance to the leadership at a time of not only domestic upheaval but also shifting relations with its long-standing enemy to the north: the United States.
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Colopy, Cheryl. "Where the Rivers End." In Dirty, Sacred Rivers. Oxford University Press, 2012. http://dx.doi.org/10.1093/oso/9780199845019.003.0024.

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It’s not yet dawn. The Bon Bibi is anchored. Some members of the crew have risen and one has brought hot water to the dining room. I have some tea to warm me as I lean on the deck rail, looking out over the silent river this December morning. Our guide and my fellow travelers are still asleep below in cozy bunks draped with mosquito nets. Looking to the nearby shore where we walked yesterday, I see the forest guards’ cottages, crumpled by cyclone Sidr’s winds and water. All is quiet. And the fishing skiff that anchored near us yesterday evening is silent too. Perhaps the men fished all night and are still sleeping in the morning chill. I walk around to the other side of the deck. Just a few yards away there’s a log floating down the gentle current toward the Bay of Bengal. Or wait. Maybe, it’s a crocodile heading obliquely across the wide mouth of the river? No, it must be just a clump of vegetation moving in the slight swells of water. Then the clump sinks slightly at both ends. I feel a surge of excitement. The shape is closer to me than any of the crocodiles the boat captain tried to approach as they sunned themselves on the shore upriver yesterday. They always slithered back down the sand and into the water before we could get a good look. There’s little light now, and still unsure, not trusting my aging eyes, I peer intently at the dark hump. It seems to sink imperceptibly again, until finally it slips under the water altogether. The shape moved as quietly and slowly as leaves floating on the surface of the water might, but clumps of vegetation don’t usually vanish underwater quite like that. Fifteen minutes later our young, long-haired Bangladeshi guide asks me, smiling slyly, if I had my glasses on when I made this sighting. When I insist I did, he’s convinced this is a good sign. Apparently this is the first sighting of a crocodile near the Bay since cyclone Sidr the previous month.
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Laird, Macgregor, and R. A. K. Oldfield. "Famine at Cape Verd Islands.—Want of Rain.—Natives of Port Praya.—American Schooner and Cargo.—Leave Port Praya.—Touch at Isles de Los.—Inhabitants.—Depart from the Islands.—Voyage to York,—Reception at York.—Lieutenant Allen and Mr. Lander taken ill. — Proceed to Free Town.—Kroomen engaged.—Remarks on Kroomen and Fishmen.—Their Characters compared with that of the Negro.—Anchor off Monroria.—Strictures on the Settlement.—Visit Simon River.—Cape Palmas.—The Dutch Governor of Axim.—Arrive at Cape Coast.—Remarks on that Settlement." In Narrative of An Expedition Into the Interior of Africa. Routledge, 2019. http://dx.doi.org/10.4324/9781315033341-2.

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Conference papers on the topic "Anchor rail"

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White, Paul F., Gerti Kola, Ash Siddiq, and Alan Ng. "OCS Rehabilitation and Kevlar Contact Wire Fall Prevention VTA San Jose, CA." In 2021 Joint Rail Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/jrc2021-58229.

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Abstract Santa Clara Valley Transportation Authority (VTA) required their original overhead contact system (OCS) along North 1st Street between interstate highway I-880 and West San Carlos Street at the Guadalupe River (opened in 1987) to be rehabilitated. HNTB was chosen to assist with the project and the first task included an overall inspection of the line to ascertain condition, operational deficiencies, and safety concerns. From this inspection, VTA prepared a scope of work for HNTB to perform and then prepare design documents for contractor bidding. During the inspection process, VTA fur
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Coppo, Marco, Claudio Dongiovanni, and Claudio Negri. "Numerical Analysis and Experimental Investigation of a Common Rail Type Diesel Injector." In ASME 2002 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/icef2002-507.

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A production common rail type injector has been investigated via numerical simulation and experimentation. The functioning principle of the injector has been carefully analysed so as to obtain a mathematical model of the device. A zero-dimensional approach has been used for modelling the injector, thus considering the variables as function of time only. The analysis of the hydraulic part of the injector resulted in the definition of an equivalent hydraulic scheme, on which basis both the equations of continuity in chambers and flow through nozzles were written. The moving mechanical components
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Catania, Andrea Emilio, Alessandro Ferrari, and Michele Manno. "Development and Application of a Complete Common-Rail Injection System Mathematical Model for Hydrodynamic Analysis and Diagnostics." In ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ices2005-1018.

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A rather complete mathematical model for a Common Rail injection-system dynamics numerical simulation was developed to support experimentation, layout and control design, as well as performance optimization. The thermo-fluid dynamics of the hydraulic system components, including rail, connecting pipes and injectors was modeled in conjunction with the solenoid-circuit electromagnetics and the mechanics of mobile elements. Onedimensional flow equations in conservation form were used to simulate wave propagation phenomena throughout the high-pressure connecting pipes, including the feeding pipe o
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Khan, Rubayat Ahmed, Samiul Islam, and Rubel Biswas. "Automatic detection of defective rail anchors." In 2014 IEEE 17th International Conference on Intelligent Transportation Systems (ITSC). IEEE, 2014. http://dx.doi.org/10.1109/itsc.2014.6957919.

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Gergel, John T., Vishali M. Vasudevan, and Matthew H. Hebdon. "Railroad Tie Lateral Resistance on Open-Deck Plate Girder Bridges." In 2020 Joint Rail Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/jrc2020-8053.

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Abstract On open-deck railroad bridges, the crossties (sleepers) are directly supported by the bridge superstructure and anchored with deck tie fasteners such as hook bolts. These fasteners provide lateral resistance for the bridge ties, and in railroad bridge design, their spacing is controlled by the required lateral resistance of the ties. Currently there are no provisions to assist in the calculation of lateral resistance provided by railroad ties on open-deck bridges, and as a result there are no specific requirements for the spacing of deck tie fasteners. This has led to different design
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Islam, Samiul, and Rubayat Ahmed Khan. "Clustering and detection of good and bad rail line anchors from images." In 2015 18th International Conference on Computer and Information Technology (ICCIT). IEEE, 2015. http://dx.doi.org/10.1109/iccitechn.2015.7488072.

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Clouse, Arthur L. "New Concrete Crosstie Regulations and Rail Cant Measurement." In ASME 2012 Rail Transportation Division Fall Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/rtdf2012-9410.

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The new concrete crosstie rules require, in FRA Class 1-5 track standards, specific performance requirements that address the unique characteristics of fastener reliability, concrete crosstie, and roadbed stability. [Inspectors] should be aware of the three modes of concrete crosstie failure: support, stability, and electrical isolation. The compressive strength of concrete and the amount of prestress in its section composition provide the strength and stiffness necessary to support expected wheel loads. There’s a balance between excessive stiffness that can lead to higher stresses at the bott
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Durfee, William, Saeed Hashemi, and Andrew Ries. "Hydraulic Ankle Foot Orthosis Emulator for Children With Cerebral Palsy." In BATH/ASME 2020 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fpmc2020-2791.

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Abstract Objective: Ankle foot orthoses (AFOs) are used by nearly 50% of children with cerebral palsy (CP) to ameliorate gait impairments. The methods used to prescribe and tune the mechanical properties of an AFO, including its angular stiffness about the ankle, are based on the intuition and experience of the practitioner. The long-term goal of this research is to develop and deploy a technology-based solution to prescribing passive AFOs that uses an AFO emulator to be used in the clinic that can, under computer control, vary its stiffness in real-time to determine the best stiffness for wal
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