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Artículos de revistas sobre el tema "Reinforced concrete construction Testing"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 29 de enero de 2023

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1

Rybak, Roman. "EXPERIMENTAL TESTING METHODOLOGY OF STRESS-STRAIN STATE OF THE REINFORCED CONCRETE PIPE WITH STRENGTHENING." Theory and Building Practice 2022, no. 2 (December 20, 2022): 36–43. http://dx.doi.org/10.23939/jtbp2022.02.036.

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Reinforced concrete pipes are exposed to environmental influences during the entire period of their operation. As a result, defects and damage appear and reduce durability and bearing capacity. In this regard, there is a need to repair and strengthen them. In order to assess the effectiveness of strengthening reinforced concrete pipes, it is necessary to get data about deformations that appeared as a result of the loads on the reinforced concrete pipe. The method for conducting experimental studies of the deformed state of reinforced concrete pipes has been developed, and the main devices and

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2

Burkovič, Kamil, Martina Smirakova, and Pavlina Matečková. "Testing and Modelling of Concrete Pile Foundations." Key Engineering Materials 738 (June 2017): 287–97. http://dx.doi.org/10.4028/www.scientific.net/kem.738.287.

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Foundation of building on concrete piles is often used when it is necessary to carry the load into larger depth as by common foundation. Bearing capacity of piles or piled raft foundation is wide area to research. This paper deals with experimental load test of concrete pile and with their numerical modelling. Several types of foundation construction were tested and two kinds will be presented and compared in this paper - reinforced concrete foundation slab and raft foundation (made of reinforced concrete foundation slab supported by drilled reinforced concrete pilot). These types of foundatio

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3

Davidyuk, Artem, and Igor Rumyantsev. "Quality control of high-performance concrete in high-rise construction during operation." MATEC Web of Conferences 170 (2018): 01035. http://dx.doi.org/10.1051/matecconf/201817001035.

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With onset of the XXI century, the demand for construction of high-rise buildings with the load-bearing framework made of high-performance cast-in-situ concrete has increased many-fold in the construction sector. Specific features of the high-performance concrete of bearing structures in the situation of real operation of high-rise buildings are continuously studied by scientists and specialists all over the world, and regulatory and methodological documents are being complemented and adjusted. High-performance concretes and structures made of them possess some specific features that should be

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4

Orlowsky, Jeanette, Markus Beßling, and Vitalii Kryzhanovskyi. "Prospects for the Use of Textile-Reinforced Concrete in Buildings and Structures Maintenance." Buildings 13, no. 1 (January 10, 2023): 189. http://dx.doi.org/10.3390/buildings13010189.

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This paper discusses the state of the art in research on the use of textile-reinforced concretes in structural maintenance. Textile-reinforced concretes can be used in structural maintenance for various purposes, including the sealing and protection of the existing building structures, as well as for the strengthening of structures. The first-mentioned aspects are explained in this paper on the basis of example applications. A special focus is placed on the maintenance of heritage-protected structures. The development, characterization, and testing of a textile-reinforced concrete system for a

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5

Zhang, Jianren, Hui Peng, and C. S. Cai. "Destructive Testing of a Decommissioned Reinforced Concrete Bridge." Journal of Bridge Engineering 18, no. 6 (June 2013): 564–69. http://dx.doi.org/10.1061/(asce)be.1943-5592.0000408.

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6

Choi, Pangil, Lochana Poudyal, Fouzieh Rouzmehr, and Moon Won. "Spalling in Continuously Reinforced Concrete Pavement in Texas." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 11 (September 10, 2020): 731–40. http://dx.doi.org/10.1177/0361198120948509.

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The performance of continuously reinforced concrete pavement (CRCP) in Texas has been quite satisfactory, primarily thanks to the continuous improvements in design and construction. However, severe spalling has been a major problem, and the Texas Department of Transportation (TxDOT) has sponsored several research projects since 1985 to identify solutions for this serious problem. Even though the research efforts were successful in identifying spalling mechanisms, developing a policy that TxDOT could easily implement has been a challenge. To develop a more practical solution to this problem, Tx

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7

Belentsov, Yuri A., and Liliya F. Kazanskaya. "Non-destructive methods of concrete quality control as factor in reliability of concrete and reinforced concrete structures in transport facilities." Transportation Systems and Technology 4, no. 1 (March 15, 2018): 058–67. http://dx.doi.org/10.17816/transsyst2018041058-067.

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Aim: The development of theory and practice of construction science leads to a need to enhance the basics of design, construction and operation of concrete and reinforced concrete structures. Despite significant progress, there is risk of collapse of different structures at various stages of their lifecycle. Current state of construction industry leads to a need to increase the quality and reliability of buildings and structures under construction. Methods: The authors have used methods of probabilistic forecasting in this work Results: The development of methods of construction ma

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8

Lindner, Marco, Konrad Vanselow, Sandra Gelbrich, and Lothar Kroll. "Fibre-reinforced polymer stirrup for reinforcing concrete structures." Technologies for Lightweight Structures (TLS) 3, no. 1 (January 24, 2020): 17–24. http://dx.doi.org/10.21935/tls.v3i1.117.

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Fibre-plastic composites offer an interesting alternative to concrete reinforcement. In order to expandthe application spectrum of reinforcing elements in fibre composite construction, a new steel-free bracingsystem with reduced radii of curvature was developed. An improvement in load carrying capacity couldbe proven in extensive investigations based on international testing methods and verified by practicaltests. With the help of newly reinforced precast concrete elements from the area of waterways and trafficroutes, a high potential for lightweight construction and resource efficiency can be

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9

Newtson, Craig M., Gaur P. Johnson, and Brian T. Enomoto. "Fundamental Frequency Testing of Reinforced Concrete Beams." Journal of Performance of Constructed Facilities 20, no. 2 (May 2006): 196–200. http://dx.doi.org/10.1061/(asce)0887-3828(2006)20:2(196).

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10

Benmokrane, Brahim, Ehab El-Salakawy, Amr El-Ragaby, and Sherif El-Gamal. "Performance evaluation of innovative concrete bridge deck slabs reinforced with fibre-reinforced-polymer bars." Canadian Journal of Civil Engineering 34, no. 3 (March 1, 2007): 298–310. http://dx.doi.org/10.1139/l06-173.

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This paper presents the construction details, field testing, and analytical results of six innovative concrete bridges reinforced with fibre-reinforced-polymer (FRP) bars recently constructed in North America, namely Wotton, Magog, Cookshire-Eaton, Val-Alain, and Melbourne bridges in Quebec, Canada, and Morristown bridge in Vermont, USA. All six bridges are girder type, with main girders made of either steel or prestressed concrete. The main girders are supported over spans ranging from 26.2 to 50.0 m. The deck is a 200–230 mm thick concrete slab continuous over spans of 2.30–3.15 m. Different

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11

Lee, Hisen Hua, Yen Shuo Chen, and Chi Wen Cheng. "Experimental Study on HMPE Fiber Reinforced Concrete." Advanced Materials Research 598 (November 2012): 336–40. http://dx.doi.org/10.4028/www.scientific.net/amr.598.336.

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Abstract. Concrete as a most popular construction material has many advantages such as easiness to be formed into various shapes, common availability and relative low cost. However, the low tensile strength and brittleness are disadvantages for wider application of the material. In this study, an advanced material of high strength and strong abrasion resistance HMPE fiber was used to reinforce concrete properties. A series of experimental testing were carried out to examine the properties of both fresh and hardened HMPE fiber reinforced concrete. It was found that the addition of an HMPE fiber

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12

Weiler, Lia, and Anya Vollpracht. "Environmental Compatibility of Carbon Reinforced Concrete: Irrigated Construction Elements." Key Engineering Materials 809 (June 2019): 314–19. http://dx.doi.org/10.4028/www.scientific.net/kem.809.314.

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To foster a sustainable deployment of the innovative composite material ‘carbon concrete composite’ in the building sector, it is necessary to ensure its resource efficiency and environmental compatibility. The Institute for Building Materials Research of the RWTH Aachen University is therefore investigating the leaching behavior of this material, especially for the case of irrigated façade elements. Laboratory and outdoor exposure tests are run to determine and assess the heavy metal and trace element emissions by leaching. Feasible interconnections between laboratory and outdoor examination

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13

Ghindea, Cristian Lucian, Ionut Radu Racanel, and Radu Cruciat. "Dynamic Testing of a Reinforced Concrete Road Bridge." Key Engineering Materials 601 (March 2014): 207–10. http://dx.doi.org/10.4028/www.scientific.net/kem.601.207.

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Considering on one hand the calculation model of the bridge, simplifying assumptions and design criteria and on the other hand the inherent differences between the project and final structure, the real structure behaviour under traffic loads can be different from that one considered in the design stage. Therefore the need of experimental tests before commissioning of bridges arises and this task is generally conditioned by complexity of the structure, the technologies used in construction and the requirements of the relevant stakeholders. The paper presents the test conditions for a reinforced

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14

Motter, Christopher J., David C. Fields, John D. Hooper, Ron Klemencic, and John W. Wallace. "Steel-Reinforced Concrete Coupling Beams. I: Testing." Journal of Structural Engineering 143, no. 3 (March 2017): 04016191. http://dx.doi.org/10.1061/(asce)st.1943-541x.0001670.

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15

MORDOVSKY, Sergey S., Nikolay A. ILYIN, Denis A. PANFILOV, Valeriya N. TALANOVA, and Yana A. BUZOVSKAYA. "METHOD OF MODELING A REINFORCED CONCRETE BEAM WITH DOUBLE REINFORCEMENT FOR STRENGTH, DEFORMATION AND FIRE RESISTANCE." Urban construction and architecture 9, no. 1 (March 15, 2019): 4–9. http://dx.doi.org/10.17673/vestnik.2019.01.1.

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The article presents a new technical solution, which relates to the field of construction, in particular, to the testing of bending reinforced concrete elements - building beams for strength, deformation and fire resistance on a scale model. The new method of solution implies an increase in the information content, visual clarity and depth of experimental studies of reinforced concrete beams as a result of using the cost-effective way of designing geometric and forceful similarity to the scale model of reinforced concrete beams for strength, deformation and fire resistance. The proposed method

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16

Ivanchev, I. "Research on concrete compressive strength in existing reinforced concrete elements with Schmidt hammer, ultrasonic pulse velocity method and destructive testing of cores." IOP Conference Series: Materials Science and Engineering 1228, no. 1 (March 1, 2022): 012034. http://dx.doi.org/10.1088/1757-899x/1228/1/012034.

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Abstract Concrete is a widely used material in construction. Quality control, maintenance and extending its service life are major issues after the construction stage and during the service of reinforced concrete buildings and facilities. This article presents the author’s experimental results for determining the compressive strength of concrete for tests on 12 reinforced concrete beams at the age of concrete 1926th day. In previous studies, some of the beams were loaded to a stage corresponding to the yield strength of the longitudinal tensile reinforcement, and others to a loading stage befo

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17

Pukharenko, Yuri V., Dmitry A. Panteleev, and Mikhail I. Zhavoronkov. "Diagrams of Deformation of Cement Composites Reinforced with Steel Wire Fiber." Scientific journal “ACADEMIA. ARCHITECTURE AND CONSTRUCTION”, no. 2 (July 23, 2018): 143–47. http://dx.doi.org/10.22337/2077-9038-2018-2-143-147.

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Modern construction practice acquires such a tendency, at which it is required to use materials with increased physical, mechanical and operational characteristics, and at the same time, do not require significant material, labor and energy costs for their production. One of the most promising building materials that meet the requirements is fiber-reinforced concrete. However, the increase in the volume of its use is limited by the insufficient degree of study of its properties and characteristics. This problem is aggravated by the constantly expanding range of reinforcing fibers, which can gi

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18

Parsekian, G. A., N. G. Shrive, T. G. Brown, J. Kroman, P. J. Seibert, V. H. Perry, A. Boucher, and G. Ghoneim. "Full-scale testing of a fibre-reinforced concrete footbridge." Proceedings of the Institution of Civil Engineers - Bridge Engineering 162, no. 4 (December 2009): 157–66. http://dx.doi.org/10.1680/bren.2009.162.4.157.

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19

Johnson, Nathan, Richard T. Ranf, M. Saiid Saiidi, David Sanders, and Marc Eberhard. "Seismic Testing of a Two-Span Reinforced Concrete Bridge." Journal of Bridge Engineering 13, no. 2 (March 2008): 173–82. http://dx.doi.org/10.1061/(asce)1084-0702(2008)13:2(173).

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20

Delatte, Norbert J., David W. Fowler, and B. Frank McCullough. "Full-Scale Test of High Early Strength Bonded Concrete Overlay Design and Construction Methods." Transportation Research Record: Journal of the Transportation Research Board 1544, no. 1 (January 1996): 9–16. http://dx.doi.org/10.1177/0361198196154400102.

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For rehabilitation of concrete pavements, resurfacing with a bonded concrete overlay (BCO) may provide significantly longer life and reduced maintenance costs. Two important issues are bonding and rapid reopening of resurfaced sections. The project objectives were to determine a method of constructing a BCO under extreme weather conditions in El Paso, Texas, that would ensure early opening to traffic and achieve design requirements for long-term performance, and to investigate methods of detecting and mapping delaminations nondestructively. A BCO test slab that was designed and constructed for

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21

Kiss, Imre, Andrei Mihai Baciu, Ilare Bordeasu, and Lavinia Madalina Micu. "Compressive Strength of Stripes and Flakes of Recycled Polyethylene Terephthalate (PET) Added Concrete." Materiale Plastice 57, no. 1 (April 17, 2020): 244–52. http://dx.doi.org/10.37358/mp.20.1.5333.

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The wastes from polyethylene terephthalate (PET) packaging can be turned into armatures for concrete used in the transports infrastructure (roads with rigid concrete structure, pedestrian and concrete pavements and borders), as well as in the construction of safety elements (support walls, bulwark foundations). This experimental research was meant to create dispersed reinforced concrete with armatures from polyethylene waste, originated from the recycling programmes of PET-type packaging. The experimental programme was aimed at constructing some samples of dispersed reinforced concrete from re

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22

Kirtas, E., and D. J. Kakaletsis. "Numerical Investigation of Influential Parameters Concerning the Experimental Testing of RC Frames Under Cyclic Loading." Open Construction and Building Technology Journal 7, no. 1 (December 30, 2013): 230–43. http://dx.doi.org/10.2174/1874836801307010230.

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Numerical simulations have been widely used to study the inelastic response of reinforced concrete structures under earthquake loading. Yet, due to the complex nature of structural inelastic behavior, experimental results are often required to verify the efficiency of applied numerical schemes. In this paper, experimental results of bare reinforced concrete frame models are employed to validate numerical calculations using the code Seismostruct. Moreover, numerical simulations investigate the influential parameters related to the physical experiment configuration and numerical analysis options

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23

Wang, Tao, Xi Chen, Wen Feng Li, and Qi Song Miao. "Seismic Performance of Masonry Buildings Retrofitted by Pre-Cast RC Panels." Applied Mechanics and Materials 166-169 (May 2012): 1811–17. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1811.

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Proposed in this study is a retrofitting technology that can be applied on exiting masonry buildings. It employs pre-cast reinforced concrete panels to confine existing masonry structure. The pre-cast members constitute a frame which encomprises the existing building. The confinement effectively improves the ductility, strength, and stiffenss of masonry structures. Moreover, the reinforced concrete panels are fabricated in factory, significantly reduces the situ construction and construction period. To demonstrate the design theory, construction organization, and seismic performance of the ret

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24

Madjlessi, Noosha, Demitrios M. Cotsovos, and Mojtaba Moatamedi. "Drop‐weight testing of slender reinforced concrete beams." Structural Concrete 22, no. 4 (May 5, 2021): 2070–88. http://dx.doi.org/10.1002/suco.202000395.

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25

Mikerego, Emmanuel, Nestor Niyonzima, and Jean Claude Ntirampeba. "Impact of impurities of local construction materials on the bearing capacity of the concrete used in structures in Burundi." Vestnik MGSU, no. 10 (October 2021): 1357–62. http://dx.doi.org/10.22227/1997-0935.2021.10.1357-1362.

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Introduction. The article is about an assessment of the impact of impurities contained in the local construction materials on the mechanical characteristics of the concrete used in reinforced concrete structures in Burundi.  Materials and methods. The methodology of the study consisted in varying the quantity of impurities for the manufacturing of the concrete experimental cubic samples. The grain sizes of the studied ordinary concrete were in the favourable zones according to the recommended granulometry for standard concretes. Simulation of impurities was made by adding in the m

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26

Komárková, Tereza. "Design of Methodology for Non-Destructive Testing of Steel-Reinforced-Fiber-Concrete." Key Engineering Materials 714 (September 2016): 179–85. http://dx.doi.org/10.4028/www.scientific.net/kem.714.179.

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Measuring instruments used for non-destructive testing of structures thanks to advances in electronics and electrical engineering are still more frequently applied. Among the building materials with which the ability to perform quality control using non-destructive testing methods would be most welcome is indisputably steel reinforced fibre concrete (SFRC). The paper deals with the design of new methods and methodologies that enable determination of the concentration and orientation of steel fibres in steel fibre reinforced concrete. Especially the distribution of steel fibres in concrete is t

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27

SADOVSKAYA, E., S. LEONOVICH, and N. BUDREVICH. "PRACTICAL TESTING OF A MULTIPARAMETER METHOD FOR ASSESSING THE QUALITY OF FIBER CONCRETE ON A CONSTRUCTION SITE." Herald of Polotsk State University. Series F. Civil engineering. Applied sciences 31, no. 8 (June 29, 2022): 32–37. http://dx.doi.org/10.52928/2070-1683-2022-31-8-32-37.

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This article presents the results of the practical application of a multi-parameter method for assessing the quality of fiber-reinforced concrete at a construction site. A monolithic fiber-reinforced concrete industrial floor in the production workshop is being investigated. Non-destructive testing methods are used: elastic rebound, ultrasonic pulse, ultrasonic tomography. As a result of the tests, the values of compressive strength, the thickness of the structure under study (with one-sided access), and the homogeneity of the material (voids and fiber "hedgehogs") were obtained.

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28

Pildysh, M., R. J. Slopek, J. O. H. Nunn, and R. A. Keys. "Bearspaw Development: design and construction of a side-channel overflow spillway." Canadian Journal of Civil Engineering 17, no. 3 (June 1, 1990): 423–30. http://dx.doi.org/10.1139/l90-046.

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An emergency spillway with a capacity of 1840 m3/s has been built to increase the spillway capacity of the 30-year-old Bearspaw Development so that it can safely pass the probable maximum flood. A unique aspect of the free-overflow, side-channel emergency spillway is the weir. This consists of an earthfill dyke with a cap and downstream facing of reinforced concrete. Comprehensive hydraulic model testing was undertaken to provide detailed design data and optimize the design of the emergency spillway. The overflow weir substructure is a zoned earthfill dyke with a 2 mm thick polyethylene membra

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29

Buonopane, S. G., and R. N. White. "Pseudodynamic Testing of Masonry Infilled Reinforced Concrete Frame." Journal of Structural Engineering 125, no. 6 (June 1999): 578–89. http://dx.doi.org/10.1061/(asce)0733-9445(1999)125:6(578).

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30

Lecieux, Yann, Emmanuel Rozière, Virginie Gaillard, Cyril Lupi, Dominique Leduc, Johann Priou, Romain Guyard, Mathilde Chevreuil, and Franck Schoefs. "Monitoring of a Reinforced Concrete Wharf Using Structural Health Monitoring System and Material Testing." Journal of Marine Science and Engineering 7, no. 4 (March 27, 2019): 84. http://dx.doi.org/10.3390/jmse7040084.

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This paper presents the Structural Health Monitoring (SHM) system developed for a port wharf of a freight terminal, in Saint-Nazaire, France. This concrete structure has been equipped with a multi-sensor system for the monitoring of concrete ageing. The measurement chain is designed to detect the penetration of chloride ions in order to quantify the risk of reinforcement bars corrosion. Modifications of the mechanical behavior of the structural elements of the wharf are also monitored. At first, the sensors embedded within the structure and the acquisition devices are described. The data from

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31

Ali, A., Z. Soomro, S. Iqbal, N. Bhatti, and A. F. Abro. "Prediction of Corner Columns’ Load Capacity Using Composite Material Analogy." Engineering, Technology & Applied Science Research 8, no. 2 (April 19, 2018): 2745–49. http://dx.doi.org/10.48084/etasr.1879.

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There are numerous reasons for which concrete has become the most widely used construction material in buildings, one of them being its availability in different types, such as fiber-reinforced, lightweight, high strength, conventional and self-compacting concrete. This advantage is specially realized in high-rise building construction, where common construction practice is to use concretes of different types or strength classes in slabs and columns. Columns in such structures are generally made from concrete which is higher in compressive strength than the one used in floors or slabs. This ra

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32

Buller, A. H., M. Oad, and B. A. Memon. "Flexural Behavior of Reinforced RAC Beams Exposed to 1000°C Fire for 18 Hours." Engineering, Technology & Applied Science Research 9, no. 3 (June 8, 2019): 4225–29. http://dx.doi.org/10.48084/etasr.2733.

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In order to meet the socio-economic demands around the globe, construction industry not only consumes concrete at a very fast pace but also yields huge amounts of construction and demolishing waste. The phenomenon gives rise to environmental issues due to production of concrete ingredients and due to dumping of the waste. Therefore, one of the solutions is the production of green concrete utilizing demolished waste. This research work studies the effect of prolonged fire (18 hours) on the flexural behavior of reinforced concrete–recycled aggregate beams. The beams were using 50% replacement of

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33

Bodnárová, Lenka, Jitka Peterková, Jiri Zach, and Iveta Nováková. "Study of Heat Transport in Structure of Concrete." Advanced Materials Research 1000 (August 2014): 302–5. http://dx.doi.org/10.4028/www.scientific.net/amr.1000.302.

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Current trend of construction of ring roads in large cities going often underground emphasizes safety of implementation and using of such constructions, which is closely connected to possible risks of a fire in these predominantly monolithic structures made from steel reinforced concrete. The paper gives results of the research focused on thermally-technical properties of cement based composite materials resistant to high temperature suitable for application in places with higher risk of fire, like secondary lining of tunnels or underground car parks. The aim was verification of appropriatenes

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34

Ning, Chao-Lie, Wenqi Du, and Bing Li. "Biaxial hysteretic model for the characterization of quasi-static testing of shear-critical reinforced concrete columns." Advances in Structural Engineering 22, no. 2 (July 17, 2018): 349–63. http://dx.doi.org/10.1177/1369433218788369.

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Given that the biaxial hysteretic model of shear-critical reinforced concrete columns is usually developed by incorporating with the single-degree-of-freedom system to write its expression in differential equation of motion control, it is unfeasible to match with the experimental data of the biaxial quasi-static testing in terms of force-displacement relationship. Therefore, a simple and effective biaxial hysteretic model is proposed in this study based on the Bouc–Wen–Baber–Noori model for characterizing the biaxial quasi-static testing of shear-critical reinforced concrete columns. An increm

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35

Lumingkewas, Riana Herlina, Akhmad Herman Yuwono, Sigit Pranowo Hadiwardoyo, and Dani Saparudin. "The Compressive Strength of Coconut Fibers Reinforced Nano Concrete Composite." Materials Science Forum 943 (January 2019): 105–10. http://dx.doi.org/10.4028/www.scientific.net/msf.943.105.

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The compressive strength of the concrete reviewed in this study uses nanosilica and coconut fibers. The addition of coconut fibers to concrete contributes to the construction of sustainable and environmentally friendly building materials. The testing method carried out physically and mechanically. Testing the compressive strength of the nanoconcrete composite with variations in the amount of nanosilica which substituted with cement. Using variations of nanosilica composition, namely 0%, 0.5%, 1%, 1.5%, and 2% added with coconut fiber to determine the effect of compressive strength from nanocon

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36

Shu, Jiangpeng, Niklas Bagge, and Jonny Nilimaa. "Field Destructive Testing of a Reinforced Concrete Bridge Deck Slab." Journal of Bridge Engineering 25, no. 9 (September 2020): 04020067. http://dx.doi.org/10.1061/(asce)be.1943-5592.0001604.

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37

Zezulová, Eva, and Tereza Komárková. "Techniques of Non-Destructive Testing of Steel Fiber Reinforced Concrete." Key Engineering Materials 755 (September 2017): 153–58. http://dx.doi.org/10.4028/www.scientific.net/kem.755.153.

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Non-destructive testing (NDT) is seeing increasingly frequent use in civil engineering thanks to the fact that the tests are repeatable and do not cause serious damage to the material. The requirements for the development and modernization of available testing devices and methodologies are ever increasing and the testing of existing structures often requires the use of NDT. Unfortunately, every measurement and methodology has its limits and the measurement devices for the evaluation of steel fiber reinforced concrete (SFRC) are no exception. In recent decades there has been an effort to modern

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38

Xu, Juechun, Chengqing Wu, Jun Li, and Jintao Cui. "Simplified finite element method analysis of ultra-high-performance fibre-reinforced concrete columns under blast loads." Advances in Structural Engineering 20, no. 1 (July 28, 2016): 139–51. http://dx.doi.org/10.1177/1369433216646012.

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Ultra-high-performance fibre-reinforced concrete has exceptional mechanical properties including high compressive and tensile strength as well as high fracture energy. It has been proved to be much higher blast resistant than normal concrete. In this article, flexural behaviours of ultra-high-performance fibre-reinforced concrete columns were investigated through full-scale tests. Two 200 mm × 200 mm × 2500 mm columns with and without axial loading were investigated under three-point bending tests, and their load–displacement relationships were recorded and the moment curvatures were derived.

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39

Muir, C. A., D. K. Bull, and S. Pampanin. "Preliminary observations from biaxial testing of a two-storey, two-by-one bay, reinforced concrete slotted beam superassembly." Bulletin of the New Zealand Society for Earthquake Engineering 45, no. 3 (September 30, 2012): 97–104. http://dx.doi.org/10.5459/bnzsee.45.3.97-104.

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Displacement incompatibility between reinforced concrete moment frames and precast flooring systems has been shown experimentally, and in historical earthquakes, to be an area of concern. Plastic hinge formation necessitates beam damage and the resulting elongation of the beam reduces the seating length of the floor, exacerbates the floor damage and induces unanticipated force distributions in the system. In severe cases this can lead to collapse. The slotted beam is a detail that protects the integrity of the floor diaphragm, respects the hierarchy of strengths intended by the designer

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40

Konrád, Petr, and Radoslav Sovják. "Experimental procedure for determination of the energy dissipation capacity of ultra-high-performance fibre-reinforced concrete under localized impact loading." International Journal of Protective Structures 10, no. 2 (March 13, 2019): 251–65. http://dx.doi.org/10.1177/2041419618819506.

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Research presented in this article is aimed to investigate the ability of ultra-high-performance fibre-reinforced concrete to absorb and dissipate mechanical energy at elevated strain rate loading. Specimens made of ultra-high-performance fibre-reinforced concrete were subjected to the low-velocity impact using the new testing procedure where no fixed supports that hold the sample during the impact were applied. The fibre volume fraction of the ultra-high-performance fibre-reinforced concrete was set as the main test variable in the framework of this study and the volumetric fraction of fibres

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41

Wu, Chengqing, Liang Huang, and Deric John Oehlers. "Blast Testing of Aluminum Foam–Protected Reinforced Concrete Slabs." Journal of Performance of Constructed Facilities 25, no. 5 (October 2011): 464–74. http://dx.doi.org/10.1061/(asce)cf.1943-5509.0000163.

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42

Rahman, Hamid, Ted Donchev, and Diana Petkova. "Modelling the behaviour of concrete shear walls with BFRP reinforcement." MATEC Web of Conferences 289 (2019): 09002. http://dx.doi.org/10.1051/matecconf/201928909002.

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Corrosion of steel reinforcement in concrete structures is one of the main challenges for the construction industry. FRP reinforcement could be used as alternative to steel reinforcement providing several advantages, such as high resistance to corrosion, high tensile strength and opportunity for developing a more ductile mode of destruction. The last characteristic is extremely beneficial in the aspect of lateral load resisting systems including RC shear walls. The presented modelling results consist of preparing finite element models of reinforced concrete shear walls utilizing Ansys 19.2 - S

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43

Türker, Temel, and Alemdar Bayraktar. "Vibration based modal testing of a scaled reinforced concrete building for construction stages." Bulletin of Earthquake Engineering 15, no. 8 (December 11, 2015): 3399–416. http://dx.doi.org/10.1007/s10518-015-9852-9.

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44

Saadoon Al-Yassri, Labeeb, Alaa Mahdi Al-Khekany, and Hajer Satea Abbas. "Experimental Study of Replacement the Tension Reinforcing Bars in Concrete Beams by Steel Pipes." International Journal of Engineering & Technology 7, no. 4.20 (November 28, 2018): 229. http://dx.doi.org/10.14419/ijet.v7i4.20.25931.

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Structures designed with reinforced concrete beams are used extensively in construction projects because of their functional and economic features. In this research, tested concrete beams were cast and reinforced with small diameter steel pipes and /or steel bars as flexural reinforcement to study the effect of this configuration of reinforcement on the structural behavior of reinforced concrete beams. The idea of this research involves performing and testing of four reinforced concrete beams reinforced by small diameter steel pipes with different percentages of replacement with traditional st

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45

Skazlić, Marijan, and Dubravka Bjegović. "Toughness testing of ultra high performance fibre reinforced concrete." Materials and Structures 42, no. 8 (October 22, 2008): 1025–38. http://dx.doi.org/10.1617/s11527-008-9441-3.

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46

Wu, Chengqing, Deric John Oehlers, John Wachl, Craig Glynn, Adrian Spencer, Matthew Merrigan, and Ian Day. "Blast Testing of RC Slabs Retrofitted with NSM CFRP Plates." Advances in Structural Engineering 10, no. 4 (August 2007): 397–414. http://dx.doi.org/10.1260/136943307783239372.

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In this paper, blast testing was performed on two reinforced concrete specimens: a plain reinforced concrete (RC) specimen; and an identical RC specimen retrofitted with near surface mounted (NSM) carbon fibre reinforced polymer (CFRP) plates. Each specimen was subjected to two separate explosive loads at a standoff distance of 0.6m, with the aim of investigating the performances of both specimens within both their elastic and plastic response ranges. The first blast (Blast 1) and second blast (Blast 2) consisted of an equivalent TNT charge weight of 0.079kg and 2.09kg respectively. The elasti

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47

Lehmann, Marek, and Wiesława Głodkowska. "Shear Capacity and Behaviour of Bending Reinforced Concrete Beams Made of Steel Fibre-Reinforced Waste Sand Concrete." Materials 14, no. 11 (June 1, 2021): 2996. http://dx.doi.org/10.3390/ma14112996.

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Inthis paper, we report the results of our research on reinforced concrete beams made of fine aggregate fibre composite, with the addition of steel fibres at 1.2% of the composite volume. The fine aggregate fibre composite is a novel construction material, in which the aggregate used is a post-production waste. Twenty reinforced concrete beams with varying degree of shear reinforcement, in the form of stirrups with and without the addition of steel fibres, tested under loading. The shear capacity results of reinforced concrete beams made of the fine aggregate fibre composite being bent by a tr

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48

Hou, Hetao, Weiqi Fu, Canxing Qiu, Jirun Cheng, Zhe Qu, Wencan Zhu, and Tianxiang Ma. "Effect of axial compression ratio on concrete-filled steel tube composite shear wall." Advances in Structural Engineering 22, no. 3 (August 28, 2018): 656–69. http://dx.doi.org/10.1177/1369433218796407.

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This study proposes a new type of shear wall, namely, the concrete-filled steel tube composite shear wall, for high performance seismic force resisting structures. In order to study the seismic behavior of concrete-filled steel tube composite shear wall, cyclic loading tests were conducted on three full-scale specimens. One conventional reinforced concrete shear wall was included in the testing program for comparison purpose. Regarding the seismic performance of the shear walls, the failure mode, deformation capacity, bearing capacity, ductility, hysteretic characteristics, and energy dissipat

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49

Lu, Jin Ping. "Testing and Specification of Polymer Concrete Materials in Singapore." Advanced Materials Research 1129 (November 2015): 177–84. http://dx.doi.org/10.4028/www.scientific.net/amr.1129.177.

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Pure cement mortar and concrete possess disadvantages such as brittleness, low bonding or adhesion strength, low tensile strength, large drying shrinkage, low chemical resistance. In order to overcome these disadvantages, polymer concrete is used as a construction material in Singapore as the properties of polymer-modified (or polymer cement) mortar and concrete are superior to conventional cement mortar. In Singapore, new products or technologies can be found through distributers, agents, etc. Singapore is able to afford and try high quality products to maintain the quality of a building and

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50

Elbasha, Nuri Mohamed. "Reinforced HSC Beams." Key Engineering Materials 629-630 (October 2014): 544–50. http://dx.doi.org/10.4028/www.scientific.net/kem.629-630.544.

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The primary long and short term advantages of high strength concrete are, low creep and shrinkage, higher stiffness, higher elastic modulus, higher tensile strength, higher durability (resistance to chemical attacks) and higher shear resistance. In addition, high strength concrete reduces the size of the member, which in turn reduces the form size, concrete volume, construction time, labor costs and dead load. Reducing the dead load reduces the number and size of the beams, columns and foundations. Thus there is a positive impact on reduction of maintenance and repair costs and an increase in

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