Relevant bibliographies by topics / Prestressing Forces

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Prestressing Forces'

Author: Grafiati
Published: 2 June 2025
Last updated: 19 July 2025

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Journal articles on the topic "Prestressing Forces"

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Liu, Han Bing, Long Lin Wang, Guo Jin Tan, and Yong Chun Cheng. "Prestress Force Effection on Natural Frequencies of Simply Supported Beams." Applied Mechanics and Materials 275-277 (January 2013): 1172–75. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.1172.

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Natural frequencies of bridges have certain sensitivity to prestressing force, so the identification of effective prestressing force based on bridges' natural frequencies is a effective method. This paper uses Finite Element Methods to establish the finite element model of prestressed steel beam, and then conducts dynamic simulation analysis of the natural frequencies of the simply-supported bridges on the condition of different prestressing forces and different reinforcement eccentricity distance arrangements. Based on the results, it analyzes the law and the extent of prestressing force's in
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Svoboda, Adam, and Ladislav Klusáček. "Results of Short-Term Experiments with Monostrands in Saddles with Small Radii." Solid State Phenomena 272 (February 2018): 147–53. http://dx.doi.org/10.4028/www.scientific.net/ssp.272.147.

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When strengthening existing reinforced concrete structures, we can find many successful applications of post-tensioning. The method of substituted cable ducts is a very convenient especially in the case of strengthening existing reinforced concrete bridges whose load capacity can be increased up to 300 %. Strengthening of structures by post-tensioning is based on active influence of internal forces by prestressing force and radial forces that occur in places of bending the unbonded prestressing tendons. Thus, the forces which acts directly on structure in the anchorage areas and in the locatio
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Sari, Nur Purnama, Irwan Irwan, and Hermansyah Hermansyah. "Analisis Kehilangan Gaya Prategang Girder Pada Jembatan Proyek Pembangunan Jalan Tol Tebing Tinggi – Inderapura." Jurnal Ilmiah Teknik Sipil dan Arsitektur (JITAS) 1, no. 2 (2022): 112–17. http://dx.doi.org/10.31289/jitas.v1i2.1456.

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Currently, the construction of toll roads in several regions of Indonesia is being carried out. One of them is the construction of the Tebing Tinggi-Inderapura Toll Road. In this project there are several bridge constructions as a link between roads or as a pedestrian bridge. This bridge uses prestressed beams in which there are steel wires. The steel wire is tensioned by pulling it using a hydraulic jack. When stress is applied, the beam loses its prestressing force. The purpose of this study was to determine the percentage loss of prestressing forces that occurred in the bridge beam. Loss of
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Pham, Quang-Quang, Ngoc-Loi Dang, Quoc-Bao Ta, and Jeong-Tae Kim. "Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone." Sensors 21, no. 19 (2021): 6337. http://dx.doi.org/10.3390/s21196337.

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This study investigates the feasibility of smart aggregate (SA) sensors and their optimal locations for impedance-based damage monitoring in prestressed concrete (PSC) anchorage zones. Firstly, numerical stress analyses are performed on the PSC anchorage zone to determine the location of potential damage that is induced by prestressing forces. Secondly, a simplified impedance model is briefly described for the SA sensor in the anchorage. Thirdly, numerical impedance analyses are performed to explore the sensitivities of a few SA sensors in the anchorage zone under the variation of prestressing
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Jung, Chi-Young, Tae-Ryeon Woo, and Jong-Han Lee. "Multi-Step Prestressing with Hybrid SMA Wires." Applied Sciences 10, no. 8 (2020): 2842. http://dx.doi.org/10.3390/app10082842.

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Prestressing force is induced in reinforced concrete (RC) structures to improve their load-carrying capacity. Generally, the prestressing strand of an RC structure is tensioned using a hydraulic jack, which decreases its workability. In this study, we evaluate the application of prestressing force by using a shape memory alloy (SMA), as has been actively studied in civil engineering. Experiments were conducted to measure the multi-stepwise prestressing force introduced in a hybrid SMA wire composed of two different types of SMA wires. The experimental parameters were determined based on the co
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Yurchenko, Vitalina, and Ivan Peleshko. "Optimal numbers of the redundant members for introducing initial pre-stressing forces into steel bar structures." Strength of Materials and Theory of Structures, no. 106 (May 24, 2021): 68–91. http://dx.doi.org/10.32347/2410-2547.2021.106.68-91.

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The paper considers parametric optimization problems for the steel bar structures formulated as nonlinear programming ones with variable unknown cross-sectional sizes of the structural members, as well as initial prestressing forces introduced into the specified redundant members of the structure. The system of constraints covers load-bearing capacity constraints for all the design sections of the structural members subjected to all the design load combinations at ultimate limit state, as well as displacement constraints for the specified nodes of the bar system, subjected to all design load c
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Stuklis, Arturs, Dmitrijs Serdjuks, and Vadims Goremikins. "Materials Consumption Decrease for Long-Span Prestressed Cable Roof." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 1 (June 16, 2015): 209. http://dx.doi.org/10.17770/etr2015vol1.231.

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<p class="R-AbstractKeywords"><span lang="EN-US">Limited raw materials and energy resources are actual national economy problems which can be solved by the decrease of weight, increase of span and durability of load bearing structures. The largest structural spans were achieved by application of cable structures. The roofs are one of the most widely used in practice type of cable structures. However, increased deformability and necessity of the special methods of stabilizing are significant cable roofs disadvantages. The prestressing of one or several groups of cables is one of the
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Perelmuter, Anatolii. "ON THE CHOICE OF PRESTRESSING PARAMETERS." International Journal for Computational Civil and Structural Engineering 17, no. 3 (2021): 114–19. http://dx.doi.org/10.22337/2587-9618-2021-17-3-114-119.

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This paper focuses on the regulation of forces in a statically indeterminate system under the action of many loads. This regulation is realized by prestressing. The paper compares two proposed methods for selecting rational values of the prestressing parameters: maximizing the minimum bearing capacity margin for the elements of the system (1) and equalizing the margins for all elements (2). An illustrative example is provided.
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Tian, Zhongchu, Zujun Zhang, Wenping Peng, Ye Dai, Yue Cai, and Binlin Xu. "Research on the Method of Temporary Prestressing to Regulate the Stress in the Section during the Construction of the Main Arch Ring of the Cantilever Cast Arch Bridge." Applied Sciences 12, no. 19 (2022): 10070. http://dx.doi.org/10.3390/app121910070.

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To control the level of tensile stress in the section of reinforced concrete arch cantilever construction, a construction control method of temporary prestressing reinforcement is proposed in this study. The influence law of temporary prestressing on the arch ring section stress is revealed based on the engineering background (Shatuo Special Bridge in Guizhou). Meanwhile, a temporary prestressing test is carried out on the ring section of the main arch to verify the effectiveness of the method. The results show that the prestressing configuration during the construction of the main arch ring o
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Aloisio, Angelo. "Aspects of Vibration-Based Methods for the Prestressing Estimate in Concrete Beams with Internal Bonded or Unbonded Tendons." Infrastructures 6, no. 6 (2021): 83. http://dx.doi.org/10.3390/infrastructures6060083.

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The estimate of internal prestressing in concrete beams is essential for the assessment of their structural reliability. Many scholars have tackled multiple and diverse methods to estimate the measurable effects of prestressing. Among them, many experimented with dynamics-based techniques; however, these clash with the theoretical independence of the natural frequencies of the forces of internally prestressed beams. This paper examines the feasibility of a hybrid approach based on dynamic identification and the knowledge of the elastic modulus. Specifically, the author considered the effect of
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Dissertations / Theses on the topic "Prestressing Forces"

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Silva, Iberê Martins da. "Análise da redistribuição de esforços em vigas de concreto protendido com seções compostas." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/3/3144/tde-05102006-165113/.

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No cálculo das perdas progressivas de protensão, decorrentes da retração e da fluência do concreto e da relaxação do aço de protensão, a norma NBR 6118 prescreve dois procedimentos simplificados, indicados para fase única de operação, ou seja, quando se consideram fases únicas de concretagem, de carregamento permanente e de protensão; e o método geral de cálculo, que permite considerar ações permanentes aplicadas em idades diferentes, e tratar a seção transversal constituída de diversas camadas discretas. Neste trabalho será desenvolvido o método dos prismas equivalentes, baseado no conceito d
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Jarmara, Pavel. "Montovaná konstrukce haly ve Vysokém Mýtě." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265607.

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The diploma thesis is focused on design and assessment of mounted storage hall. I have designed prestressed truss, reinforced truss, beam, column and foundation pad. I have made calculations for consideration of ultimated limit state as well. I have made analysis of internal forces for beams just with manual calculations. Analyses of internal forces for column and foundation pad were found with Scia Engeneer. All calculations are following the Eurocode 2. All designed elements have formwork drawing and reinforcement drawing.
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Beier, Jonathan T. "THE EFFECTS OF PRESTRESSING FORCE TRANSFER IN PRETENSIONED CONCRETE MEMBERS." Ohio University / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1171391099.

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Devulapally, Shiva Reddy. "P-DELTA EFFECT ON PRETENSIONED CONCRETE GIRDERS DUE TO PRESTRESSING FORCE." OpenSIUC, 2019. https://opensiuc.lib.siu.edu/theses/2494.

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Hoareau, Christophe. "Vibrations hydroélastiques de réservoirs élastiques couplés à un fluide interne incompressible à surface libre autour d’un état précontraint." Thesis, Paris, CNAM, 2019. http://www.theses.fr/2019CNAM1241/document.

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Cette thèse de doctorat porte sur le calcul par la méthode des éléments finis du comportement dynamique de réservoirs élastiques précontraints contenant un liquide interne à surface libre. Nous considérons que la pression hydrostatique exercée par le fluide interne incompressible sur les parois flexibles du réservoir est à l’origine de grands déplacements, conduisant ainsi à un état d’équilibre non-linéaire géométrique. Le changement de raideur lié à cet état précontraint induit un décalage des fréquences de résonances du problème de vibrations linéaires couplées.L’objectif principal du travai
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Němec, Petr. "Projekt zastřešení výstavní haly." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226442.

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The Diploma’s thesis is focused on the design of selected parts of reinforced concrete exhibition hall (prestressed concrete purlin, prestressed concrete girder, reinforced concrete column, reinforced concrete footing, post-tensioned concrete girders). The load calculation (the self weight, the permanent load, the wind load, the snow load and imposed load), the design and the review of selected reinforced concrete items and the drawing documentation are included in this thesis.
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Vadlamani, Soumya. "Simulation of the Effect of Deck Cracking on the Behavior of the Prestressing Force in a Single Span Prestressed Concrete Girder." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1505127202585872.

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Břeňová, Marie. "Montovaná skeletová konstrukce nákupního centra." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-239962.

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The diploma thesis is focused on the design and review of selected load-bearing elements of the precast hall. Girder is dimensioned in two variants: reinforced and prestressed concrete. Design and assessment of prestressed girder was carried out using the simplified method and the IDEA statica. Column and footing was also dimensioned. All calculations are done in accordance with Eurocode 2.
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Skoog, Adam, and Alahmad Yaseen Mohamad. "FE-Analysis of stress variation during diamond cutting of prestressed concrete sleepers." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-46016.

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The manufacturing process ‘long line method’ has shown many advantages when producing prestressed concrete sleepers, such as rapid production and low cost. However, there have been certain difficulties when cutting the 100 m long concrete blocks into sleepers. The sleepers tend to crack when the diamond cutting blade cuts through the last strands. Moreover, the shape and size of the cracks varies from one sleeper to another. Although these cracks may not affect the load carrying capacity, they will not be aesthetically pleasing. No earlier studies within the area have been found, i.e. diamond
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Caloň, Radim. "Statické zajištění zámku v obci Drnovice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225473.

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The goal of the project is a static provision design of Drnovice castle. This castle (today a municipal office and a restaurant) is violated by vertical cracks. There is a significant horizontal displacement vector. That’s why horizontal prestress redevelopment (using prestressed cables) was chosen. A drawing documentation is an integral part of the project.
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Books on the topic "Prestressing Forces"

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D, Peterson L., and United States. National Aeronautics and Space Administration., eds. Identification of nonlinear micron-level mechanics for a precision deployable joint. National Aeronautics and Space Administration, 1994.

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M, Johnston L., Czekalski B, and George C. Marshall Space Flight Center., eds. Effect of flange bolt preload on space shuttle main engine high pressure oxidizer turbopump housing analysis. National Aeronautics and Space Administration, George C. Marshall Space Flight Center, 1991.

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M, Johnston L., Czekalski B, and George C. Marshall Space Flight Center., eds. Effect of flange bolt preload on space shuttle main engine high pressure oxidizer turbopump housing analysis. National Aeronautics and Space Administration, George C. Marshall Space Flight Center, 1991.

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Book chapters on the topic "Prestressing Forces"

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Hernández-Montes, Enrique, and Luisa María Gil-Martín. "Prestressing force." In Concrete Structures. CRC Press, 2024. http://dx.doi.org/10.1201/9781003169659-8.

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Soundararajan, M., K. Prakash, and S. Thirumurugan. "Up-Gradation of Unreinforced Masonry Infill Square Reinforced Concrete Frame of Ferrocement Cover with External Prestressing to Cater Seismic Forces." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8433-3_63.

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Wang, Zhengyu, Hongming Li, and Huibin Chen. "Theoretical Study on Natural Vibration Frequency of Externally Prestressed Simply Supported Steel Beams." In Advances in Frontier Research on Engineering Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_7.

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AbstractPrestress is an important index of the mechanical performance of prestressed structures, which will have a certain impact on the natural vibration frequency of the structure. In this paper, based on the action mechanism of the prestressing system, the externally prestressed simply supported steel beams are classified, and the energy method is used to establish the dynamic equations of the prestressed steel beams with three forms of cable distribution, with a view to exploring the relationship between the magnitude of prestressing force, cable distribution form, and cable section size and the natural vibration frequency of externally prestressed simply-supported steel beams. Through a numerical example, the theoretical calculation results are compared with the finite element simulation results to verify the theoretical calculation formula derived in this paper and reveal the action law of the prestressed system on the natural vibration frequency of the simply supported steel beam.
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Kumar, Vimal. "Influence of Prestressing Force on Performance of Prestressed Concrete." In Springer Proceedings in Materials. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6259-4_2.

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Wang, Lei. "Secondary Anchorage and Prestress Loss of Fractured Strand in PT Beams." In Strand Corrosion in Prestressed Concrete Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2054-9_7.

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AbstractThe effect of corrosion-induced strand fracture on residual prestress of post-tensioned concrete beams should be investigated fully to ensure the structural safety. An experimental test with five specimens is designed to investigate the secondary anchorage and residual prestressing force in locally corroded post-tensioned concrete beams after strand fracture. Then, an analytical method is proposed to determine the damage control section of locally corroded post-tensioned concrete beams after strand fracture for the flexural capacity evaluation. Following this, a numerical model is established to predict the secondary transfer length and residual prestress of fractured strand in post-tensioned concrete beams.
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Mateu-Sánchez, J. A., M. C. Castro-Bugallo, E. Giménez-Carbó, J. Navarro-Gregori, and J. R. Martí-Vargas. "Determining the Residual Prestressing Force in Unmonitored Full-Scale Prestressed Concrete Members." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1972-3_31.

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Morelli, Francesco, Simone Celati, Domenico Gaudioso, et al. "Assessment of the Residual Prestressing Force in Existing Bridges Through the X-ray Diffractometer." In Lecture Notes in Civil Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-91877-4_99.

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Yagoub, Nouraldaim F. A., and Xiuxin Wang. "Finite Element Analysis of Self-centering Reinforced Concrete Shear Walls." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2532-2_41.

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AbstractPost-tensioned precast concrete walls are an attractive research trend in structural engineering, which replaces cast-in-place concrete walls in earthquake-prone buildings. Precast concrete walls use mild steel and high-strength post-tensioning steel for flexural resistance. Mild steel reinforcement yields in tension and compression, dissipating inelastic energy. Unbounded tendons are used inside the wall to give self-centering capability, which lowers residual displacements. At the wall-foundation, horizontal slots are installed equally. Meanwhile, the middle-wall concrete is still anchored to the base. A three-dimensional finite element (FE) model is developed in this study to assess the lateral load response of shear walls with horizontal bottom slots. The seismic performance of three distinct walls is evaluated using the Abaqus software FEA. The model is validated by comparing the experimental data accessible in the literature. Furthermore, we investigate the effects of bottom slit length, steel strand position, initial prestressing level, and concrete strength. All of these criteria are critical for constructing structures with the new concept. The results of this study show that the three-dimensional finite element model accurately predicts all of the above-mentioned properties, including the lateral force–displacement response and toe area damage of self-centering shear walls.
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Alvi, Stefanus Diaz, Yiska Vivian C. Wijaya, Bondan W. Anggoro, and Paulus P. Rahardjo. "The Effects of Ground Anchor Prestressing on Pile Group Reaction Force Redistribution and Settlement as Permanent Foundation of High-Rise Building Using 3D FEM." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9722-0_4.

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"Measurement of prestressing cable forces T.JAVOR VUIS, Bratislava, Czechoslavakia." In Testing During Concrete Construction. CRC Press, 1991. http://dx.doi.org/10.1201/9781482289039-39.

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Conference papers on the topic "Prestressing Forces"

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Checa, Josep Farré, Haiying Ma, Jose Antonio Lozano Galant, and José Turmo Coderque. "Optimization of prestressing operations in the design of cable-stayed bridges by applying the Direct Algorithm." In IABSE Congress, San José 2024: Beyond Structural Engineering in a Changing World. International Association for Bridge and Structural Engineering (IABSE), 2024. https://doi.org/10.2749/sanjose.2024.0921.

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<p>A new direct simulation of the cantilever erection method is presented in order to reduce the prestressing operations of stay cables. This new method introduces a direct approach for cable- stayed bridge construction using the cantilever erection method, employing independent finite element models. Prestressing forces are modeled as imposed strains based on the unstressed length concept to ensure the achievement of a specific target state post-construction (objective service stage, OSS). This facilitates faster simulation of the construction process, particularly for steel bridges and
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Vélez, William, Mohamed ElBatanouny, Fabio Matta, and Paul H. Ziehl. "Assessment of Corrosion in Prestressed Concrete Piles in Marine Environment with Acoustic Emission." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01627.

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Abstract Corrosion of prestressed concrete (PC) piles in splash zones is one of the main causes of bridge deterioration in marine environments. Acoustic Emission (AE) monitoring is a promising technology for detecting corrosion damage in concrete nondestructively. The monitoring of corrosion and associated cracking in PC piles is facilitated by the service load conditions, where compressive loads from the prestressing forces combined with dead loads are predominant, and flexural cracking becomes less relevant, thereby reducing sources of AE. This paper presents the experimental design for a pi
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Okubo, Kazumasa, Naoki Sogabe, Tsunehisa Yamaguchi, Michio Imai, Keiichiro Koga, and Kunihiko Hirono. "Evaluation of Distribution of Tensile Force on External Prestressing Cable Using Fiber Optic Measuring Method." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.2513.

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<p>For prestressed concrete (PC) structures, in order to secure the structural performance, it is necessary to introduce the required tensile force to PC cables during construction, and to maintain the tensile force within the range expected by design during the service period. To address this requirement, the fiber optic measuring method for PC cables has been developed and applied to actual PC structures. In this method, optical fiber sensor-embedded strands are used to evaluate the distribution of tensile force of PC cables. In this study, the measuring method was applied to the exter
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Agredo Chávez, Angélica, Jaime Gonzalez-Libreros, Gabriel Sas, et al. "Available Tests to evaluate Residual Prestressing Forces in Concrete Bridges." In IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures. International Association for Bridge and Structural Engineering (IABSE), 2022. http://dx.doi.org/10.2749/prague.2022.1123.

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<p>The reduction of the structural capacity and eventual collapse of existing concrete bridges is often related to the loss of the initial prestressing forces. This loss can be associated to immediate or time dependent factors such as elastic shortening, creep, relaxation, loading, and cracking, among others. In addition, environmental factors can lead to corrosion of the strands with the subsequent reduction of their area, loss of bond with the concrete and additional cracking which in turn will influence the value of the residual prestress force and the bridge capacity. Therefore, the
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Mauser, Kristian, Jan Friese, and Alexander Hasse. "Analyzing the Effect of Prestressing Forces on Selective Compliant Mechanisms: A Case Study." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97799.

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Abstract Once it is designed, the stiffness of a compliant mechanism is not intended to be changed in order to adapt to special operation conditions. Nevertheless, various operation tasks e.g. mechanical grippers, would benefit from such a feature. The effect of axial compression forces, however, is well known to reduce the transverse stiffness of beam-like structures. This paper deals with the effect of prestressing forces on compliant mechanisms. For this purpose, a mathematical description for a modal analysis of compliant mechanisms — based on the author’s former publications — is presente
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Das, S. K., S. Utku, G. S. Chen, and B. K. Wada. "Optimal Placement of Actuators in the Precision Control of Truss Structures." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0189.

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Abstract Actuator placement criteria in truss structures are based on satisfying two goals: (1) precision control (displacement control) of precision points, and, (2) prestressing control (i.e., creation of initial stresses) to counteract joint looseness. It is shown that stress-free exact displacement control is possible in (a) statically determinate trusses using as many actuators (q) as the number of independent degrees of freedom at precision points (p), i.e., q = p; (b) in statically indeterminate trusses using q = p + r actuators, where r is the degree of redundancy. Using (a) q <
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Chen, Roger H. L. "An ultrasonic method for measuring tensile forces in a seven-wire prestressing strand." In QUANTITATIVE NONDESTRUCTIVE EVALUATION. AIP, 2002. http://dx.doi.org/10.1063/1.1472945.

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Velesik, Marek, Jiří Strasky, Radim Necas, Jan Kolacek, and Michal Pozar. "Effect of External Prestressing on the Stability of a Flat Arch." In 29th Concrete Days 2023. Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-s8ikeo.

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For bridges with a slender bridge deck, ensuring sufficient stability under external loads is one of the technical problems that must be addressed. This paper studies the stability of a flat arch under asymmetric loads. Flat arch structures can form a directly walkable bridge deck. These structures can be realized without external prestressing only up to certain spans due to the necessity of capturing significant horizontal forces. The paper includes a static study that analyses the possible arrangements of the prestressing cables. The study evaluates the stabilizing effect of external prestre
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Shin, Moochul, and Hailing Yu. "Numerical Evaluation of Splitting Performance of Prestressed Concrete Prisms With Larger Diameter Prestressing Wires." In 2019 Joint Rail Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/jrc2019-1315.

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This numerical study focuses on evaluating the structural performance of prestressed concrete prisms with larger diameter (0.315 in) prestressing wires. More commonly used prestressing wires are the 0.209 in (5.32 mm) diameter wires for prestressed concrete crossties. However, there has been an interest to adopt larger diameter prestressing wires in order to provide higher prestress forces with the aim of mitigating the structural damage of prestressed concrete crossties. Previous experimental studies demonstrated that small-scale pretensioned concrete prisms had excellent correlation in bondi
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Osman Letelier, Juan Pablo, Alex Hückler, and Mike Schlaich. "Application of Prestressed CFRP Textiles for the Development of Thin- Walled Concrete Structural Elements." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.0102.

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<p>The success story of prestressed concrete is based on the utilization of high‐strength prestressing steel which enables large compressive forces to be introduced into the concrete. However, thin‐walled concrete structures often require considerable thicknesses for the sole purpose of preventing corrosion of the steel elements. In this paper the use of prestressed Carbon Fiber Reinforced Polymer (CFRP) for the development of thin‐walled concrete structural elements is briefly presented. The transition of material to stronger, lighter and corrosion‐resistant CFRP represents a significan
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Reports on the topic "Prestressing Forces"

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NUMERICAL STUDY ON SHEAR BEHAVIOUR OF ENHANCED C-CHANNELS IN STEEL-UHPC-STEEL SANDWICH STRUCTURES. The Hong Kong Institute of Steel Construction, 2021. http://dx.doi.org/10.18057/ijasc.2021.17.3.4.

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This paper firstly developed a three-dimensional (3D) finite element model (FEM) for enhanced C-channels (ECs) in steel-UHPC-steel sandwich structures (SUSSSs). The FEM was validated by 12 push-out tests on ECs with UHPC. With the validated FEM, this paper performed in-depth parametric studies on shear behaviours of ECs with ultra-high performance concrete (UHPC). These investigated parameters included bolt-hole gap (a), grade (M) and diameter (d) of bolt, core strength (fc), length of C-channel (Lc), and prestressing force ratio on bolt (ρ) in ECs. Under shear forces, the ECs in UHPC exhibite
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