Relevant bibliographies by topics / Prestressed concrete beams Computer programs

Academic literature on the topic 'Prestressed concrete beams Computer programs'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Prestressed concrete beams Computer programs"

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Wang, Xiao Dong, Wen Zhong Zheng, and Ying Wang. "Research on Stress Increase of Unbonded Tendons at Ultimate in Prestressed Concrete Continuous Beams." Applied Mechanics and Materials 166-169 (May 2012): 1554–57. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1554.

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Rational evaluation for stress increase of unbonded tendon at ultimate is the basis to exactly compute flexural load bearing capacity of unbonded prestressed concrete beams. Moment-curvature nonlinear analysis method is adopted to compile programs for calculating stress increase at ultimate in unbonded prestressed continuous beams. The precision of the method is proved by comparing results of 16 experimental two-span unbonded prestressed continuous beams to the prediction value of stress increase at ultimate. Based on the simulation analysis, law of the influence of some basic factors to stress increase at ultimate in unbonded tendons in continuous beams is obtained, such as non-prestressed reinforcement index, prestressed reinforcement index, ratio of span to depth and loading type. Then formulas for calculating stress increase at ultimate in unbonded tendons in prestressed concrete continuous beams were established.
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WILLIAMS, ROM, A. C. CASSELL, and L. F. BOSWELL. "A COMPUTER DESIGN AID FOR PRESTRESSED CONCRETE BOX BEAMS." Proceedings of the Institution of Civil Engineers - Structures and Buildings 94, no. 1 (February 1992): 61–72. http://dx.doi.org/10.1680/istbu.1992.18144.

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Erbatur, F., R. Al Zaid, and N. A. Dahman. "Optimization and sensitivity of prestressed concrete beams." Computers & Structures 45, no. 5-6 (December 1992): 881–86. http://dx.doi.org/10.1016/0045-7949(92)90046-3.

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Tej, Petr, Jiří Kolísko, Petr Bouška, Miroslav Vokáč, and Jindřich Čech. "Prestressed I-Beams Made of Ultra-High Performance Concrete for Construction of Railway Bridges." Applied Mechanics and Materials 578-579 (July 2014): 776–78. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.776.

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This paper focuses on research into prestressed I-beams made of ultra-high-performance concrete, which are designed to be structural elements in small and medium span railway bridges. Prestressed concrete I-beams are designed with ten prestressing cables in the bottom flange. The prestressed beams are laid close together in the actual structure with panels inserted between them. The entire structure will subsequently become monolithic. At the present time, I-beams made of rolled steel are commonly used as structural elements in this type of structure. The advantage of these types of structures lies in their having a low construction height. This paper presents a computer and experimental analysis of the loading of UHPC prestressed I-beams. For the purpose of the experiments, several specimens of 7 m span were made. The specimens were subsequently tested in the laboratory in four-point bending tests. The paper presents the process and results of the experiments. Simultaneously with the experiments, computer analyses were created in which optimization of the material and geometric parameters of the beams were carried out. The paper demonstrates the correspondence of the experimental and computer-simulated load test results.
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Du, Huanhuan, Jianyou Pan, Huaxun Shen, and Jie Dong. "Numerical Analysis of Flexural Behavior of Prestressed Steel-Concrete Continuous Composite Beams Based on BP Neural Network." Computational Intelligence and Neuroscience 2022 (May 10, 2022): 1–10. http://dx.doi.org/10.1155/2022/5501610.

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Prestressed steel-concrete continuous composite beam (PCCB) is a kind of beam, which makes reinforced concrete slab and steel beam bear load and coordinate deformation through connectors such as studs. Prestressed steel-concrete continuous composite beam is a kind of transverse load-bearing composite member formed by prestressed technology on the basis of ordinary composite beam. Aiming at the flexural behavior of prestressed steel-concrete continuous composite beams, a three-dimensional finite element numerical analysis model is established, and the whole process of the test is simulated based on BP neural network. The calculated results are in good agreement with the test. Using this model, the mechanical deformation performance of prestressed steel-concrete continuous composite beam is further analyzed, and the effects of some parameters (steel beam strength grade, concrete strength grade, concrete slab thickness, and transverse reinforcement ratio) on the flexural performance of prestressed steel-concrete continuous composite beam are discussed, which provides a reference basis for engineering design.
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Elbadry, Mamdouh M., and Amin Ghali. "Analysis of time-dependent effects in concrete structures using conventional linear computer programs." Canadian Journal of Civil Engineering 28, no. 2 (April 1, 2001): 190–200. http://dx.doi.org/10.1139/l00-093.

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Analysis of the time-dependent changes in displacements, internal forces, and reactions at the supports in continuous reinforced concrete structures cast, prestressed, and loaded at different stages is frequently needed in design to satisfy the serviceability requirements. The time-dependent parameters considered in the analysis are creep and shrinkage of concrete, relaxation of prestressed steel, sequence of construction, and changes in structural system and support conditions. A procedure of analysis is presented using conventional linear analysis computer programs. The analysis procedure is explained through examples to demonstrate its simplicity and applicability.Key words: analysis, computer program, creep, displacement, frames, precast concrete, prestressed concrete, relaxation, shrinkage, time-dependent.
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7

WILLIAMS, R. O. M., A. C. CASSELL, L. F. BOSWELL, and P. WALDRON. "DISCUSSION. A COMPUTER DESIGN AID FOR PRESTRESSED CONCRETE BOX BEAMS." Proceedings of the Institution of Civil Engineers - Structures and Buildings 99, no. 2 (May 1993): 237–38. http://dx.doi.org/10.1680/istbu.1993.23382.

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Pisani, Marco Andrea, Maria Pina Limongelli, Pier Francesco Giordano, and Mattia Palermo. "On the Effectiveness of Vibration-Based Monitoring for Integrity Management of Prestressed Structures." Infrastructures 6, no. 12 (December 3, 2021): 171. http://dx.doi.org/10.3390/infrastructures6120171.

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In this paper, the effectiveness of vibration-based tests for the detection of damages for prestressed concrete beams is investigated. Despite large research efforts, discrepant and sometimes contradicting conclusions have been drawn regarding the efficacy and reliability of vibration-based monitoring for prestressed structures. Herein, a contribution to this discussion is provided by tackling the problem from a different perspective. Specifically, the question that this paper intends to answer is: “Do vibration-based tests support decision-makers in integrity management operations for prestressed elements?” The discussion is carried out by comparing the performance of prestressed and ordinary reinforced concrete beams with similar capacities. Both analytical and numerical case studies are considered. Results show that, for prestressed beams, in contrast to reinforced concrete beams, modal parameters can provide information regarding damage only when the structure is close to its ultimate conditions. This makes this information hardly useful for integrity management purposes and the effectiveness of vibration-based tests questionable for this type of structural element.
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9

Franchetti, P., C. Modena, and M. Q. Feng. "Nonlinear Damping Identification in Precast Prestressed Reinforced Concrete Beams." Computer-Aided Civil and Infrastructure Engineering 24, no. 8 (November 2009): 577–92. http://dx.doi.org/10.1111/j.1467-8667.2009.00612.x.

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10

Tej, Petr, Jiří Kolísko, Petr Bouška, Miroslav Vokáč, and Jindřich Čech. "Prestressed I-Beams of 12 m Span Made of Ultra-High Performance Concrete for Construction of Railway Bridges." Applied Mechanics and Materials 587-589 (July 2014): 1593–96. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1593.

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This paper focuses on research of prestressed I-beams made of ultra-high performance concrete (UHPC), which are designed to be structural elements in small and medium span railway bridges. Prestressed concrete I-beams are designed with ten prestressing cables in the bottom flange. The prestressed beams are laid close together in the actual structure, with panels inserted between them. The entire structure will subsequently become monolithic. At the present time, I-beams made of rolled steel are commonly used as structural elements in this type of structure. The advantage of these types of structures lies in their having low construction height. This paper presents a computer and experimental analysis of loading of UHPC prestressed I-beams. For the purpose of the experiments, three specimens of 12 m span were made. The specimens were subsequently tested in the laboratory in four-point bending tests. The paper presents the process and results of the experiments. Simultaneously with the experiments, computer analyses were created in which optimization of the material and geometric parameters of the beams were carried out. The paper demonstrates the correspondence of the experimental and computer-simulated load test results.
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Dissertations / Theses on the topic "Prestressed concrete beams Computer programs"

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Maruri, Rodolfo Felipe. "Iterative computer analysis of post-tensioned concrete beams and frames." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/19510.

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Camino, Trujillo Santiago J. "Analytical Evaluation of Damaged Prestressed Concrete Box Beams Bridge Girders." Ohio University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1282326000.

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Cook, William Digby. "Studies of reinforced concrete regions near discontinuities." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75457.

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A non-linear finite element computer program capable of predicting the complete response of two-dimensional reinforced concrete members was developed. This tool which accounts for the stress strain characteristics of cracked concrete was used to predict the responses of a number of members containing discontinuities. These members included corbels, dapped end beams, beams with web holes, and deep beams. The results of tests performed by the author as well as tests performed by other researchers were compared with the non-linear predictions. In addition, simple strut and tie models suitable for designing regions near discontinuities were developed. The predictions obtained by these models were compared with the non-linear finite element predictions and with the test results.
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Taha, Nabil M. "A microcomputer program for the design of composite beams." 1985. http://hdl.handle.net/2097/27555.

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Books on the topic "Prestressed concrete beams Computer programs"

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Mbwambo, William J. Structural response of prestressed concrete members subjected to elevated temperatures. 1995.

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Book chapters on the topic "Prestressed concrete beams Computer programs"

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Wong, H. H. A. "Computer programs." In Reinforced and Prestressed Concrete, 456–91. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4899-7134-0_12.

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Conference papers on the topic "Prestressed concrete beams Computer programs"

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"Long Term Behavior of Prestressed and Partially Prestressed Concrete Beams: Experimental and Numerical Results." In "SP-129: Computer Analysis of Effects of Creep, Shrinkage, and Temperature Changes on Concrete Structures". American Concrete Institute, 1991. http://dx.doi.org/10.14359/1321.

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Reports on the topic "Prestressed concrete beams Computer programs"

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Rich, William B., Robert R. Jacobs, Christopher S. Williams, and Robert J. Frosch. Repair and Strengthening of Bridges in Indiana Using Fiber Reinforced Polymer Systems: Volume 2–FRP Flexural Strengthening and End Region Repair Experimental Programs. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317310.

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For bridges that are experiencing deterioration, action is needed to ensure the structural performance is adequate for the demands imposed. Innovate repair and strengthening techniques can provide a cost-effective means to efficiently and safely extend the service lives of bridges. The use of fiber reinforced polymer (FRP) systems for the repair and strengthening of concrete bridges is increasing in popularity. Recognizing the potential benefits of the widespread use of FRP, a research project was initiated to determine the most appropriate applications of FRP in Indiana and provide recommendations for the use of FRP in the state for the repair and strengthening of bridges. The details of the research are presented in two volumes. Volume 1 provides the details of a study conducted to (i) summarize the state-of-the-art for the application of FRP to concrete bridges, (ii) identify successful examples of FRP implementation for concrete bridges in the literature and examine past applications of FRP in Indiana through case studies, and (iii) better understand FRP usage and installation procedures in the Midwest and Indiana through industry surveys. Volume 2 presents two experimental programs that were conducted to develop and evaluate various repair and strengthening methodologies used to restore the performance of deteriorated concrete bridge beams. The first program investigated FRP flexural strengthening methods, with focus placed on adjacent box beam bridges. The second experimental program examined potential techniques for repairing deteriorated end regions of prestressed concrete bridge girders. Externally bonded FRP and near-surface-mounted (NSM) FRP were considered in both programs.
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Pevey, Jon M., William B. Rich, Christopher S. Williams, and Robert J. Frosch. Repair and Strengthening of Bridges in Indiana Using Fiber Reinforced Polymer Systems: Volume 1–Review of Current FRP Repair Systems and Application Methodologies. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317309.

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Abstract:
For bridges that are experiencing deterioration, action is needed to ensure the structural performance is adequate for the demands imposed. Innovate repair and strengthening techniques can provide a cost-effective means to extend the service lives of bridges efficiently and safely. The use of fiber reinforced polymer (FRP) systems for the repair and strengthening of concrete bridges is increasing in popularity. Recognizing the potential benefits of the widespread use of FRP, a research project was initiated to determine the most appropriate applications of FRP in Indiana and provide recommendations for the use of FRP in the state for the repair and strengthening of bridges. The details of the research are presented in two volumes. Volume 1 provides the details of a study conducted to (1) summarize the state-of-the-art methods for the application of FRP to concrete bridges, (2) identify successful examples of FRP implementation for concrete bridges in the literature and examine past applications of FRP in Indiana through case studies, and (3) better understand FRP usage and installation procedures in the Midwest and Indiana through industry surveys. Volume 2 presents two experimental programs that were conducted to develop and evaluate various repair and strengthening methodologies used to restore the performance of deteriorated concrete bridge beams. The first program investigated FRP flexural strengthening methods, with a focus on adjacent box beam bridges. The second experimental program examined potential techniques for repairing deteriorated end regions of prestressed concrete bridge girders. Externally bonded FRP and near-surface-mounted (NSM) FRP were considered in both programs.
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