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Thematische Bibliographien / Reinforced concrete Ductility / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Reinforced concrete Ductility“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 29. Januar 2023

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1

Galishnikova, Vera V., Paschal Chimeremeze Chiadighikaobi, and Dafe Aniekan Emiri. "Comprehensive view on the ductility of basalt fiber reinforced concrete focus on lightweight expanded clay." Structural Mechanics of Engineering Constructions and Buildings 15, no. 5 (December 15, 2019): 360–66. http://dx.doi.org/10.22363/1815-5235-2019-15-5-360-366.

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Relevance. Ductility of basalt fiber reinforced concrete is an interesting property of basalt fiber reinforced concrete. However, very few experiments on this property is documented. The aim of the work. This paper provides a summarized analysis and review of existing publications on the ductility of lightweight basalt fiber reinforced concrete. Methods. This paper provides a comprehensive study on ductility of basalt reinforced concrete and lays the framework for proper laboratory experiment on the ductility of basalt fiber reinforced concrete. Results. From the findings of this review paper,

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Muralidhara Rao, Dr T., N. Srikar, G. Sukesh Reddy, and B. Praveen. "Ductility of Reinforced Concrete Beams." CVR Journal of Science & Technology 9, no. 1 (December 1, 2015): 7–12. http://dx.doi.org/10.32377/cvrjst0902.

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3

Yun, Ying Wei, Qin Luo, Il Young Jang, Shan Shan Sun, and Jia Wei Zhang. "Experimental Research on the Ductility of High Performance Concrete Beams." Applied Mechanics and Materials 166-169 (May 2012): 1316–20. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1316.

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Ductility is important in the design of reinforced concrete structures. In seismic design of reinforced concrete members, it is necessary to allow for relatively large ductility so that the seismic energy is absorbed to avoid shear failure or significant degradation of strength even after yielding of reinforcing steels in the concrete member occurs. This paper aims to present the basic data for the ductility evaluation of reinforced HPC (high performance concrete) beams. Accordingly, 10 flexural tests were conducted on full-scale structural concrete beam specimens having concrete compressive s

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4

Hosen, Md Akter, Mahaad Issa Shammas, Sukanta Kumer Shill, Safat Al-Deen, Mohd Zamin Jumaat, and Huzaifa Hashim. "Ductility Enhancement of Sustainable Fibrous-Reinforced High-Strength Lightweight Concrete." Polymers 14, no. 4 (February 14, 2022): 727. http://dx.doi.org/10.3390/polym14040727.

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To limit the cross-sectional size of concrete structures, high-strength, lightweight concrete is preferred for the design and construction of structural elements. However, the main drawback of high-strength, lightweight concrete is its brittleness over normal-weight concrete. The ductility of concrete is a crucial factor, which plays an important role when the concrete structures are subjected to extreme situations, such as earthquakes and wind. This study aims to improve the ductility of high-strength, lightweight concrete by incorporating steel fibers. The palm oil clinker (POC)-based, high-

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5

Wang, Boxue, Shiping Yin, and Ming Liu. "Investigation on the Displacement Ductility Coefficient of Reinforced Concrete Columns Strengthened with Textile-Reinforced Concrete." Advances in Civil Engineering 2021 (December 7, 2021): 1–12. http://dx.doi.org/10.1155/2021/3152619.

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To evaluate the seismic performance of reinforced concrete (RC) columns strengthened with textile-reinforced concrete (TRC), based on the ABAQUS numerical analysis results of 15 TRC-strengthened RC columns, the grey correlation theory was used to determine the input variables of the model, and the accuracy of the numerical simulation results is verified by some experiments. Then, according to FEM data, a neural network prediction model was established for the displacement ductility coefficients of TRC-strengthened columns, and a formula was proposed for calculating the displacement ductility c

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6

Vandewalle, Lucie. "Ductility of hybrid fiber reinforced concrete." IABSE Symposium Report 92, no. 4 (January 1, 2006): 10–16. http://dx.doi.org/10.2749/222137806796185535.

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7

Bai, Z. Z., and F. T. K. Au. "Ductility of symmetrically reinforced concrete columns." Magazine of Concrete Research 61, no. 5 (June 2009): 345–57. http://dx.doi.org/10.1680/macr.2008.00149.

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8

Annamaneni, Krishna Kiran, Bhumika Vallabhbhai Dobariya, and Krasnikovs Andrejs. "CONCRETE, REINFORCED BY CARBON FIBRE COMPOSITE STRUCTURE, LOAD BEARING CAPACITY DURING CRACKING." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (June 17, 2021): 232–37. http://dx.doi.org/10.17770/etr2021vol2.6655.

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Different authors conducted studies on fiber reinforced concretes (FRC) with carbon fibres of different lengths and some results showed that concrete mix with homogeneously distributed short fibres in their volume have good strength and ultra-strain compared to normal plain concrete mix. However, this study is focused more on 3-dimensional (3D) carbon fibre reinforced plastic (epoxy) CFRP composite thin rods frame used as a reinforcement in concrete which shows good increase in loadbearing and ductility. Were investigated concrete mixes with superplasticizer, nano-silica, quartz sand, fine nat

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Zhang, Xin Le, Hai Cao, and Xiao Hui Guo. "Study on Compressive Stress-Strain Relationship of Polymer-Modified Concrete." Advanced Materials Research 779-780 (September 2013): 122–25. http://dx.doi.org/10.4028/www.scientific.net/amr.779-780.122.

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The axial compressive stress-strain relationship of concrete reflects its basic mechanical performance, which is important in analyzing the performance of materials, especially in the analyzing of the elastic modulus, ductility and carrying capacity. In order to study the mechanical properties of polymer-modified concrete and steel fiber reinforced polymer concrete, a comparative study of the compressive stress-strain relationship of polymer-modified concrete and steel fiber reinforced polymer concrete was carried out, the complete compressive stress-strain curves were obtained, and the influe

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Siregar, Atur P. N. "Experimental investigation of the flexural ductility of singly reinforced concrete beam using normal and high strength concrete." Journal of Sustainable Engineering: Proceedings Series 1, no. 2 (September 30, 2019): 218–24. http://dx.doi.org/10.35793/joseps.v1i2.30.

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This paper discusses and reports based on the experimental investigation of the flexural ductility of singly reinforced normal strength and high strength concrete beams. Compressive concrete strength of 40 and 95 MPa were employed to create singly reinforced normal strength and high strength concrete beams, respectively. Fourteen samples made of normal and high strength concrete were engaged to observe the flexural ductility behaviour of beams on the basis of four point bend testing. Analysis on the basis of the flexural cracking, ultimate failure and curvature ductility were carried out to de

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Mo, Y. L., and S. F. Perng. "Behavior of Framed Shearwalls Made of Corrugated Steel under Lateral Load Reversals." Advances in Structural Engineering 3, no. 3 (July 2000): 255–62. http://dx.doi.org/10.1260/1369433001502184.

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Reinforced concrete buildings with shearwalls are very efficient to resist earthquake disturbances. In general, reinforced concrete frames are governed by flexure and low-rise shearwalls are governed by shear. If a structure includes both frames and shearwalls, it is generally governed by shearwalls. However, the ductility of ordinary reinforced concrete framed shearwalls is very limited. The experiments on framed shearwalls made of corrugated steel was recently reported. It was found that the ductility of framed shearwalls can be greatly improved if the thickness of the corrugated steel wall

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12

Yang, Lin Hu, Han Zhu, and Apostolos Fafitis. "Curvature Ductility of Singly Reinforced CRC Beams (Part-II)." Advanced Materials Research 168-170 (December 2010): 2111–15. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.2111.

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This article (Part-II) continues the work of a previous article (Part-I). It undertakes a theoretical analysis of the curvature ductility factor (CDF) of a singly reinforced CRC (crumb rubber concrete) beam and demonstrates how CRC’s material ductility is transformed into structural ductility of a reinforced CRC beam. The result shows that CDF for a reinforced CRC beam is much higher than that for a conventional concrete reinforced beam.

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Zhao, Jun, Li Jun Wang, and Dan Ying Gao. "Non-Linear FEM Analysis of Steel Fiber Reinforced Concrete Shearwall." Advanced Materials Research 163-167 (December 2010): 1551–54. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1551.

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The numerical simulation by nonfinear finite element method(FEM) was adopted to analyze the behavior and the influences of the fraction of steel fiber by volume fraction and the strength of steel fiber reinforced concrete on the bearing capacity and the ductility of reinforced concrete shearwalls. The results show that with the increase of the fraction of steel fiber by volume fraction, the bearing capacity and ductility coefficient of steel fiber reinforced concrete shearwalls increase gradually. With the increase of the strength of steel fiber reinforced concrete, the bearing capacity and du

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14

Rakhshanimehr, Mehrollah, M. Reza Esfahani, M. Reza Kianoush, B. Ali Mohammadzadeh, and S. Roohollah Mousavi. "Flexural ductility of reinforced concrete beams with lap-spliced bars." Canadian Journal of Civil Engineering 41, no. 7 (July 2014): 594–604. http://dx.doi.org/10.1139/cjce-2013-0074.

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In this paper, the flexural ductility of lap-spliced reinforced concrete (RC) beams is experimentally investigated. Twenty-four specimens were designed and manufactured for laboratory experiments. Concrete compressive strength, amount of transverse reinforcement over the splice length, and the diameter of longitudinal bars were selected as the main variables. The ductility of tested specimens is evaluated based on a previously defined ductility ratio. Results show that concrete strength and amount of transverse reinforcement over the splice have major effects on ductility. With an appropriate

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Deng, Shao Yu, and Rong Zong. "Study of Reinforced Concrete Bridge Column Ductility Based on VB." Applied Mechanics and Materials 368-370 (August 2013): 1410–14. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.1410.

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Because of the complexity of the ductility of reinforced concrete bridge columns test operation, the paper compiles VB application procedure to study the anti-earthquake ductility of reinforced concrete bridge columns.The experimental data in the test of concrete bridge piers and the caculation value of VB are compared, which agree very well. Therefore,feasibility of VB procedure to analysis the ductility of bridge columns is proved.

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Malla, Prafulla B., Hong Zhou, and Yi Che. "Cyclic Flexural Behavior of Reinforced Concrete Beams." E3S Web of Conferences 38 (2018): 03022. http://dx.doi.org/10.1051/e3sconf/20183803022.

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The present study aims at investigating the cyclic flexural behavior of reinforced concrete beams with varying depths. Five reinforced concrete beams with beam depth ranging from 250 mm to 750 mm were tested under reversed cyclic loading and the influence of beam depth on the flexural strength and ductility of reinforced concrete beams was investigated. In addition, OpenSees was used to model the test specimens and the analytical results were compared with the experimental reuslts. It is shown that there is no apparent size effect on the normalized ultimate flexural strength of the tested beam

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Xu, Ling, Xiang Yu, and Zhen Yu Di. "Experimental Study of CFRP Reinforced Concrete Beams." Applied Mechanics and Materials 578-579 (July 2014): 1271–75. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.1271.

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Through strengthening experiment of four limit damage reinforced concrete beams by CFRP, the performance index of the carrying capacity, the stiffness and the ductility compared with before strengthening of reinforced concrete beams, and analyzed before and after reinforcement. It shows that the ultimate load, the stiffness and the ductility of limit damage reinforced concrete beams by CFRP have different degrees of increase and can be widely used in practical engineering.

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Zhang, Shao Wu, Geng Biao Zhang, and Ying Chuan Chen. "Experimental Study on Reinforced Concrete Framework that Reinforced by Steel Tube Concrete Wing Wall." Advanced Materials Research 1079-1080 (December 2014): 22–27. http://dx.doi.org/10.4028/www.scientific.net/amr.1079-1080.22.

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In order to verify the feasibility of a new overallseismic reinforcement method of the framework. Firstly，carried low cyclic loading tests on reinforcedconcrete framework, then reinforced the framework with a new method, and repeatthe low cyclic loading tests , finally, compared and analyzed the data from twotests. Compared with the original framework, the shape of the hysteresis curveis more full and the skeleton curve of the parallel period is longer andthe ductility factor increased by 35% and the bearing capacity increased by 40%.The results show that reinforcement framework has better ene

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Wang, Zuohu, Zhanguang Gao, Yuan Yao, and Weizhang Liao. "Experimental investigation on the seismic behavior of concrete beams with prestressing carbon fiber reinforced polymer tendons." Science Progress 103, no. 1 (November 1, 2019): 003685041988523. http://dx.doi.org/10.1177/0036850419885235.

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Seven prestressed concrete beams and one normal concrete beam were tested to study the seismic performance of concrete beams with prestressing carbon fiber reinforced polymer tendons. The failure modes, hysteretic curves, ductility, stiffness degeneration, and energy dissipation capacity were studied systematically. This study shows that the partial prestressing ratio is the main factor that affects the seismic performance of carbon fiber reinforced polymer prestressed concrete beams. The beam is more resilient to seismic loads as the partial prestressing ratio decreases. Under the same partia

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Renić, Tvrtko, and Tomislav Kišiček. "Ductility of Concrete Beams Reinforced with FRP Rebars." Buildings 11, no. 9 (September 21, 2021): 424. http://dx.doi.org/10.3390/buildings11090424.

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Concrete beams reinforced with FRP rebars have greater durability than standard steel reinforced elements. The main disadvantage of using FRP rebars is the low ductility of elements which may be unacceptable in certain situations. There are several different ways of increasing the ductility of concrete elements, which are analyzed in this paper. They are compared based on efficiency, influence on durability and ease of construction. Less analyzed and tested methods are given more attention to try and expand the current knowledge and possibilities. For methods that lack experimental data, theor

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21

Al-Azawi, Thamir K., Raad K. Al-Azawi, and Teghreed H. Ibrahim. "Curvature Ductility of Reinforced Concrete Column Sections Under Different strain Rates." Tikrit Journal of Engineering Sciences 13, no. 2 (June 30, 2006): 67–92. http://dx.doi.org/10.25130/tjes.13.2.04.

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This paper presents theoretical parametric study of the curvature ductility capacity for reinforced concrete column sections. The study considers the behavior of concrete and reinforcing steel under different strain rates. A computer program has been written to compute the curvature ductility taking into account the spalling in concrete cover. Strain rate sensitive constitutive models of steel and concrete were used for predicting the moment-curvature relationship of reinforced concrete columns at different rate of straining. The study parameters are the yield strength of main reinforcement, y

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Lan, Feng, Qian Li, Zhuo Yi Chen, and Wen Gang Ma. "Experimental Study on Seismic Performance of Fiber Reinforced Concrete Pier." Applied Mechanics and Materials 353-356 (August 2013): 1791–95. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.1791.

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In order to study the seismic performance of fiber reinforced concrete pier, four scaled piers whose material is reinforced concrete (RC), carbon fiber reinforced concrete (CFRC), polypropylene fiber reinforced concrete (PPFRC) and hybrid fiber reinforced concrete (HFRC) respectively have been tested under dynamic and static hydraulic servo testing system. The hysteretic curves, dissipating capability, residual deformation and ductility of each specimen are compared and studied. Experimental results indicate that the residual deformation of specimen PPFRC is not as good as CFRC, but it has wel

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23

Xiang, Ping, ZH Deng, YS Su, HP Wang, and YF Wan. "Experimental investigation on joints between steel-reinforced concrete T-shaped column and reinforced concrete beam under bidirectional low-cyclic reversed loading." Advances in Structural Engineering 20, no. 3 (July 29, 2016): 446–60. http://dx.doi.org/10.1177/1369433216653841.

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Steel-reinforced concrete T-shaped column-beam structure system has superiorities of both steel-reinforced structure and special-shaped column structure. This research focuses on steel-reinforced concrete T-shaped column-beam joint design and experimentally investigates seismic behaviors of the proposed joints. Pseudo-static tests are carried out on three steel-reinforced concrete T-shaped column-reinforced concrete beam joints and one reinforced concrete T-shaped column-reinforced concrete beam joint. The experiments were conducted under bidirectional low-cyclic reversed loading to simulate r

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Zhao, Jun, Li Jun Wang, and Dan Ying Gao. "Load and Deformation Properties of Steel Fiber Reinforced Concrete ShearWall." Applied Mechanics and Materials 69 (July 2011): 23–27. http://dx.doi.org/10.4028/www.scientific.net/amm.69.23.

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The numerical simulation by nonlinear finite element method(FEM) was adopted to analyze the behavior and the influences of the volume fraction of steel fibers and the strength of steel fiber reinforced concrete on the load capacity and the deformation performance of reinforced concrete shearwalls.The effect of steel fiber on the FEM was determined. The results show that with the increase of the volume fraction of steel fibers, the crack load, bearing capacity and ductility coefficient of steel fiber reinforced concrete shearwalls increase gradually. With the increase of the strength of steel f

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Choi. "Evaluation of Ductility in Reinforced Concrete Members Using Material Models in Eurocode2." Journal of the Korean Society of Civil Engineers 35, no. 2 (2015): 287. http://dx.doi.org/10.12652/ksce.2015.35.2.0287.

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Yuan, Fang, Liping Chen, Mengcheng Chen, and Kaicheng Xu. "Behaviour of Hybrid Steel and FRP-Reinforced Concrete—ECC Composite Columns under Reversed Cyclic Loading." Sensors 18, no. 12 (December 2, 2018): 4231. http://dx.doi.org/10.3390/s18124231.

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Fibre-reinforced polymer (FRP) is used widely in concrete structures owing to its noncorrosive, light-weight, nonmagnetic, and high tensile-strength properties. However, the FRP-reinforced concrete flexural member exhibits low ductility owing to the linear–elastic property of FRP reinforcement. Hybrid steel—FRP-reinforced concrete members exhibit good strength and ductility under flexure owing to the inelastic deformation of steel reinforcement. The existing investigations have focused on the mechanical behaviours of the hybrid steel—FRP-reinforced flexural members. Only few studies have been

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Askarizadeh, N., and M. R. Mohammadizadeh. "Numerical Analysis of Carbon Fiber Reinforced Plastic (CFRP) Shear Walls and Steel Strips under Cyclic Loads Using Finite Element Method." Engineering, Technology & Applied Science Research 7, no. 6 (December 18, 2017): 2147–55. http://dx.doi.org/10.48084/etasr.1279.

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Reinforced concrete shear walls are the main elements of resistance against lateral loads in reinforced concrete structures. These walls should not only provide sufficient resistance but also provide sufficient ductility in order to avoid brittle fracture, particularly under strong seismic loads. However, many reinforced concrete shear walls need to be stabilized and reinforced due to various reasons such as changes in requirements of seismic regulations, weaknesses in design and execution, passage of time, damaging environmental factors, patch of rebar in plastic hinges and in some cases fail

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Xiao, Xiao, Zhao Hui Li, Sheng Bo Liu, and Qiong Fang Wu. "Proportion of High-Strength Steel Bars in Reinforced Concrete Ductile Piers." Advanced Materials Research 838-841 (November 2013): 605–10. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.605.

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This paper mainly focuses on the affect factors of ductility of reinforced concrete pier with the high-strength longitudinal reinforcement and stirrups. By finite element software ANSYS, changed the amount of longitudinal reinforcement and high-strength stirrups in the piers, the ductility performance of concrete piers was studied. The results show that under certain conditions, the ductility coefficient of concrete piers with high-strength reinforcement can increase with the amount of stirrups. In addition, high-strength longitudinal reinforcement can improve the ductility performance of the

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Scarpitti, Nicholas, Nicholas Gavio, Alexander Pol, and Seyed Hamid Reza Sanei. "Recycling Unrecycled Plastic and Composite Wastes as Concrete Reinforcement." Journal of Composites Science 7, no. 1 (January 5, 2023): 11. http://dx.doi.org/10.3390/jcs7010011.

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The land disposal of waste material is a major environmental threat, and recycling efforts must be exponentially improved to mitigate it. In this paper, a feasibility study was conducted to reinforce concrete with waste materials that are not typically recycled. Compression testing was performed to evaluate the mechanical properties of the concrete specimens. The results were compared with a conventional wire mesh reinforcement used in concrete. Alternative reinforcements that are typically disposed of in landfill were used, namely, plastic regrind, carbon fiber scraps, tempered glass, coarse

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Galishnikova, Vera V., Alireza Heidari, Paschal C. Chiadighikaobi, Adegoke Adedapo Muritala, and Dafe Aniekan Emiri. "Ductility and flexure of lightweight expanded clay basalt fiber reinforced concrete slab." Structural Mechanics of Engineering Constructions and Buildings 17, no. 1 (December 15, 2021): 74–81. http://dx.doi.org/10.22363/1815-5235-2021-17-1-74-81.

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Relevance. The load on a reinforced concrete slab with high strength lightweight aggregate concrete leads to increased brittleness and contributes to large deflection or flexure of slabs. The addition of fibers to the concrete mix can improve its mechanical properties including flexure, deformation, toughness, ductility, and cracks. The aims of this work are to investigate the flexure and ductility of lightweight expanded clay concrete slabs reinforced with basalt fiber polymers, and to check the effects of basalt fiber mesh on the ductility and flexure. Methods. The ductility and flexural/def

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TAKIGUCHI, Masayuki, Tadatomo WATANABE, Tsutomu SATO, and Hisashi TANAKA. "Evaluation of Ductility for Reinforced Concrete Members." Quarterly Report of RTRI 40, no. 3 (1999): 165–70. http://dx.doi.org/10.2219/rtriqr.40.165.

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Eswari, S., P. N. Raghunath, and K. Suguna. "Ductility Performance of Hybrid Fibre Reinforced Concrete." American Journal of Applied Sciences 5, no. 9 (September 1, 2008): 1257–62. http://dx.doi.org/10.3844/ajassp.2008.1257.1262.

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Kuang, J. S., and A. I. Atanda. "Enhancing ductility of reinforced concrete frame buildings." Proceedings of the Institution of Civil Engineers - Structures and Buildings 158, no. 4 (August 2005): 253–65. http://dx.doi.org/10.1680/stbu.2005.158.4.253.

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Samani, Ali Khajeh, Mario M. Attard, and Stephen J. Foster. "Ductility in concentrically loaded reinforced concrete columns." Australian Journal of Structural Engineering 16, no. 3 (September 2, 2015): 237–50. http://dx.doi.org/10.1080/13287982.2015.1092688.

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Wang, Qingxiang, Guofan Zhao, and Liyan Lin. "Ductility of high strength reinforced concrete columns." Nuclear Engineering and Design 156, no. 1-2 (June 1995): 75–81. http://dx.doi.org/10.1016/0029-5493(94)00936-s.

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Kim, Jang Hoon. "Ductility enhancement of reinforced concrete thin walls." Computers and Concrete 2, no. 2 (April 25, 2005): 111–23. http://dx.doi.org/10.12989/cac.2005.2.2.111.

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Demers, M., and K. W. Neale. "Confinement of reinforced concrete columns with fibre-reinforced composite sheets - an experimental study." Canadian Journal of Civil Engineering 26, no. 2 (April 1, 1999): 226–41. http://dx.doi.org/10.1139/l98-067.

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The wrapping of fibre-reinforced composite sheets around concrete columns is a promising method for structural strengthening and repair. This rehabilitation technique is of practical interest, as the lay-up of the sheets is rather easy; it does not require specialized tools, and the epoxy resins employed cure at ambient temperatures. Here, results of an experimental investigation are reported for 16 round reinforced concrete columns 300 mm in diameter and 1200 mm high. These columns were confined by means of carbon-epoxy sheets and loaded concentrically in axial compression. The effects of var

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Du, Chuang, Xiao Ming Yang, and Ning Li Li. "Performance Analysis of Concrete-Filled Steel Tube Column and Reinforced Concrete Column under Axial Compression." Advanced Materials Research 446-449 (January 2012): 82–85. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.82.

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In this paper, a comparative investigation into the behavior of concrete-filled steel tube column and reinforced concrete column with the same quantity of material and cross-section sizes under axial load have been undertaken using the finite element method. Both is analyzed to compare the axial compression performance,including bearing capacity, ductility and their mechanism. The results of the analyses clearly exhibit that bearing capacity of concrete-filled steel tube column is higher about 25% than that of reinforced concrete column. Under the same conditions, ductility of concrete-filled

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Wu, Qin, Huagang Zhang, Hongniao Chen, Xin Zhang, YanHui Wei, Li Li, and Kejian Ma. "Seismic Behaviour of Cast-In-Situ Phosphogypsum-Reinforced Concrete Grid Frame Composite Walls." Advances in Civil Engineering 2019 (November 4, 2019): 1–17. http://dx.doi.org/10.1155/2019/1529137.

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This paper mainly studies the effect of cast-in-situ phosphogypsum on seismic behaviour of reinforced concrete grid frame. The mechanical behaviour of three reinforced concrete grid frames and four cast-in-situ phosphogypsum-reinforced concrete grid frame composite walls under low cycle alternating load was designed and tested. The test results show that the reinforced concrete grid frame has less bearing capacity and poor energy consumption. The addition of cast-in-situ phosphogypsum can effectively improve the seismic behaviour of the reinforced concrete grid frame. Compared with the reinfor

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Alzeebaree, Radhwan, Abdulkadir Çevik, Alaa Mohammedameen, Anıl Niş, and Mehmet Eren Gülşan. "Mechanical performance of FRP-confined geopolymer concrete under seawater attack." Advances in Structural Engineering 23, no. 6 (November 14, 2019): 1055–73. http://dx.doi.org/10.1177/1369433219886964.

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In the study, mechanical properties and durability performance of confined/unconfined geopolymer concrete and ordinary concrete specimens were investigated under ambient and seawater environments. Some of the specimens were confined by carbon fiber and basalt fiber–reinforced polymer fabric materials with one layer and three layers under chloride and ambient environments to observe mechanical strength contribution and durability performances of these hybrid types of materials. These fiber-reinforced polymer fabric materials were also evaluated in terms of retrofit purposes especially in the ma

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Wang, Kai Bin, Chun An You, and Li Min Xin. "Application of ANSYS Program in Ductility Analysis of Reinforced Concrete Frame Structure with Specially-Shaped Columns." Applied Mechanics and Materials 215-216 (November 2012): 1118–21. http://dx.doi.org/10.4028/www.scientific.net/amm.215-216.1118.

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In this paper, the writer analyzed a three-ply reinforced concrete frame structure with specially shaped columns through compiling a program by finite elements program of ANSYS. The results of simulated approached to experimental dates by comparison them. Which mean that use ANSYS program simulated ductility performance of reinforced concrete frame structure with specially shaped columns under reversed cyclic load is feasible. The simulation reflected the ductility of reinforced concrete frame structure, in which from load-on till destruction is perfectly.

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Xue, Wei Chen, Bin Zhang, and Yi Wang. "Static Performance of Reinforced Concrete U-Shaped Composite Beams Subjected to Positive Moment." Advanced Materials Research 368-373 (October 2011): 365–68. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.365.

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The reinforced concrete U-shaped composite beam which is composed of precast U-shaped beam, precast slabs and cast-in-place (CIP) concrete, is investigated in this paper. The performance of the reinforced concrete U-shaped composite beam and the cast-in-place concrete control specimen subjected to positive moment was evaluated in terms of failure pattern, flexural strength of normal section, ductility and slips based on the monotonic static loading tests. The results showed that both specimens behaved in ductile manner. The flexural strength of reinforced concrete U-shaped composite beam was a

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Chen, Xiao Qiang, Bin Jia, Hua Chuan Yao, and Yu Zhang. "A Study on Flexural Bearing Capacity of RC Beams Combination Strengthened with CFRP by Comparative Experiments." Applied Mechanics and Materials 94-96 (September 2011): 1624–27. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.1624.

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This paper compares the flexural bearing capacity, rigidity, and ductility of the reinforced RC beams after comparative tests of reinforcing RC beams by three different ways: directly bonding CFRP, bonding CFRP after replacing concrete and bonding CFRP after replacing concrete and planting bar. The results show that the method of replacing concrete can sufficiently avoid the debonding between CFRP and concrete, improve the flexural bearing capacity, and further strengthen the rigidity and ductility; whereas the method of planting bar can well guarantee the bond of Young and old concretes, let

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Bei, Cheng, Shi Wei Li, and Ray K. L. Su. "Application of Steel Plates on the Retrofitting of Current Reinforced Concrete Coupling Beams." Advanced Materials Research 721 (July 2013): 714–19. http://dx.doi.org/10.4028/www.scientific.net/amr.721.714.

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Coupling beams are essential structural elements of reinforced concrete coupled shear wall to resist earthquakes and other lateral loads. But many current reinforced concrete coupling beams are insufficient in resisting lateral loads due to their bad ductility. So a test of retrofitting methods of deep coupling beams with steel plates since their good performance in the ductility and deformation was made to find ways of improving the ductility of the beams, and the results of this retrofitting method prove good because of the incensement of the ductility, deformation and strength of the beams.

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Rong, Xian, Jian Xin Zhang, Yan Yan Li, and Yan Feng Chen. "Experimental Research on Ductility and Bearing Capacity of Prestressed High Strength Concrete Pipe Piles." Applied Mechanics and Materials 405-408 (September 2013): 2511–14. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.2511.

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Based on the low cyclic loading experiments on prestressed high strength concrete pipe piles, in which one of them was reinforced by steel fiber, another stirrup ratio, the other was not reinforced, the authors compare the results in terms of damage characteristic, hysteretic curve, bearing capacity, displacement and ductility. It is shown that the bearing capacity and ductility of prestressed high strength concrete pipe piles reinforced by steel fiber increases. With the increase of stirrup ratio, the hysteretic behavior and the deformation behavior of prestressed high strength concrete pipe

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Xue, Jian Yang, Jian Peng Lin, and Hui Ma. "Experimental Study on Seismic Performance of Steel Reinforced Recycled Concrete Column." Applied Mechanics and Materials 501-504 (January 2014): 1580–86. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1580.

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The pseudo-static tests were carried out on seven steel reinforced recycled concrete columns. The main parameters of specimens were recycled aggregate replacement ratio, axial compression ratio and volumetric stirrup ratio. The results indicate that the incorporation of recycled aggregate doesnt reduce the horizontal bearing capacity, ductility and the energy dissipation capacity of specimens and has little effect on seismic performance. The seismic performance of steel reinforced recycled concrete column decreases significantly in the high axial compression ratio. The ductility, horizontal be

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M., Ahmed Heidayet, and Omer Qarani. "Ductility Ratio and Toughness Index of Reinforced Concrete Slabs Subjected to High Temperature." Journal of Zankoy Sulaimani - Part A 5, no. 2 (May 17, 2001): 1–8. http://dx.doi.org/10.17656/jzs.10095.

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Arslan, Guray, and Ercan Cihanli. "CURVATURE DUCTILITY PREDICTION OF REINFORCED HIGH‐STRENGTH CONCRETE BEAM SECTIONS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 16, no. 4 (December 31, 2010): 462–70. http://dx.doi.org/10.3846/jcem.2010.52.

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The ductility of reinforced concrete beams is very important, since it is essential to avoid a brittle failure of the structure by ensuring adequate curvature at the ultimate limit state. One of the procedures used to quantify ductility is based on curvatures, namely, curvature ductility. It is necessary to know the curvature ductility of singly reinforced high‐strength concrete (HSC) sections for determining a maximum permissible tensile reinforcement ratio or a maximum depth of the concrete compression area in design codes. The requirements of several codes and methods of prediction of the c

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Chen, C. C., and S. M. Hsu. "Formulas for Curvature Ductility Design of Doubly Reinforced Concrete Beams." Journal of Mechanics 20, no. 4 (December 2004): 257–65. http://dx.doi.org/10.1017/s1727719100003476.

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AbstractWith the concrete treated as unconfined, semi-empirical equations for curvature ductility ratios of doubly reinforced beam sections were derived. Based on the resulted semi-empirical equations, design formulas for curvature ductility ratios, which take into account the effect of tension and compression reinforcement ratios and strengths of reinforcement and concrete, are established and calibrated. The proposed design formulas are fairly simple with reasonable accuracy. The proposed design formulas enable the designer to design beam sections for selected ductility ratios, and, conseque

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Kamal, Ahmed Youssef. "Ductility of simply supported rubberized concrete beams." Challenge Journal of Concrete Research Letters 12, no. 2 (June 23, 2021): 49. http://dx.doi.org/10.20528/cjcrl.2021.02.002.

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Dispose of waste rubberized tires become a dangerous problem around the world, represented a big serious risk to the sur-rounded environment. Many studies show that over 1000 million tires reach their expired date yearly and this figure is anticipated to be 5000 million tires by reaching 2030. A minor part of them is employed as recycled materials and the residual amount is stockpiled or buried. This paper aimed to successfully utilize the vast amounts of tire rubber waste existing currently in landfills. This paper represents a practical investigation of the ductility performance of the reinf

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