Academic literature on the topic 'Reinforced Concrete Frames, RC Frames, Seismic Strengthening, External Strengthening'

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Journal articles on the topic "Reinforced Concrete Frames, RC Frames, Seismic Strengthening, External Strengthening"

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Bahadir, Fatih, and Fatih Süleyman Balik. "Seismic Performance Improvement of 3D Reinforced Concrete Frames with Different Strengthening Applications." Applied Mechanics and Materials 789-790 (September 2015): 1140–44. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.1140.

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This study used test frames were purposely detailed and constructed with observed deficiencies in investigated dormitory buildings of Turkey. In this study, four reinforced concrete frames were produced two storeys, one bay and 3D in 1/6 geometric scale was tested. Since the studied frame was the external frame of the structure, brick infill wall with a window opening was also included. The first specimen was the reference specimen and contained no strengthening and no brick wall. The second specimen was contained brick wall. The third specimen was strengthened with internal steel panel. Final
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Bahadir, Fatih, Mehmet Kamanli, Hasan Husnu Korkmaz, Fatih Suleyman Balik, Alptug Unal, and Serra Zerrin Korkmaz. "Strengthening of Gravity Load Designed Reinforced Concrete Frames with the External RC Shear Walls." Advanced Materials Research 747 (August 2013): 265–68. http://dx.doi.org/10.4028/www.scientific.net/amr.747.265.

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Turkey is situated on a very earthquake zone of the world namely Alp-Himalayan Earthquake Zone. Several destructive earthquakes resulted in high dead losses in the last century. Turkish building stock consisted of nonductile RC framed structures commonly 3 to 7 stories. The common properties of the existing structures is the poor lateral resistance. The residental buildings with poor earthquake resistance must be rehabilitated with a rapid, economical, feasible and effective strengthening methods. The external shear wall addition to the existing poor frame is studied experimentally in this stu
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Jung, Ju-Seong, and Kang-Seok Lee. "Pseudodynamic Testing of Buildings Retrofitted with External Steel Reinforced Concrete Frames to Increase Lateral Strength for Earthquake Damage Prevention." Shock and Vibration 2020 (July 16, 2020): 1–21. http://dx.doi.org/10.1155/2020/3027094.

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In this study, a new technique for seismic retrofitting via the attachment of an “external steel reinforced concrete frame” (ESRCF) system was developed to strengthen medium-to-low-rise reinforced concrete (RC) buildings. Two methods (bolting and welding) were developed to connect existing RC frames and external strengthening elements; these methods are technically and practically suited to various construction conditions. The retrofitting method developed in this study can be used to perform seismic strengthening construction, while residents continue to live within the building. The method i
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Sahoo, Dipti R., and Durgesh C. Rai. "A Novel Technique of Seismic Strengthening of Nonductile RC Frame using Steel Caging and Aluminum Shear Yielding Damper." Earthquake Spectra 25, no. 2 (2009): 415–37. http://dx.doi.org/10.1193/1.3111173.

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A novel strengthening scheme for seismically-weak RC frames is proposed which utilizes external steel caging to improve flexural/shear strength of columns and aluminum shear-yielding damper ( Al-SYD) to further enhance lateral strength, stiffness and overall energy dissipation capacity of the frame. This paper describes the effectiveness of this scheme as evidenced in an experimental study on a reduced scale (1:2.5) single-story, single-bay, gravity-only designed reinforced concrete (RC) frame. The strengthened frame was simultaneously subjected to gravity loads and reversed cyclic lateral dis
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Manfredi, Vincenzo, Giuseppe Santarsiero, Angelo Masi, and Giuseppe Ventura. "The High-Performance Dissipating Frame (HPDF) System for the Seismic Strengthening of RC Existing Buildings." Sustainability 13, no. 4 (2021): 1864. http://dx.doi.org/10.3390/su13041864.

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In Italy as well as in other earthquake-prone countries, the large number of existing buildings requiring seismic retrofitting calls for sustainable solutions able to reduce both costs and downtime. To this purpose, in this paper, the High-Performance Dissipating Frame system (HPDF), a new strengthening solution for the seismic rehabilitation of existing buildings, is presented. HPDF is based on external precast reinforced concrete (RC) frames rigidly connected to the existing structures and equipped with shear damper devices in order to provide high dissipation capacity. The proposed solution
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Hwang, Jae-Sung, and Kang Seok Lee. "Seismic Strengthening Effects Based on Pseudodynamic Testing of a Reinforced Concrete Building Retrofitted with a Wire-Woven Bulk Kagome Truss Damper." Shock and Vibration 2016 (2016): 1–17. http://dx.doi.org/10.1155/2016/3956126.

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A passive damper with a wire-woven bulk Kagome truss design was recently developed; its applicability as a passive damper to improve the seismic performance of building systems, including shear hysteresis behavior, energy dissipation capacity, and fatigue, was confirmed by material tests. The Kagome truss, a periodic cellular metal type, is composed of evenly distributed helical wires with a constant pitch and helical radius in six directions. The purpose of this study was to develop a new passive damper system for seismic strengthening of existing reinforced concrete (RC) frames. The proposed
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Lee, Kang Seok. "An Experimental Study on Hybrid Noncompression CF Bracing and GF Sheet Wrapping Reinforcement Method to Restore Damaged RC Structures." Shock and Vibration 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/202751.

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We describe a novel technique for restoration of reinforced concrete (RC) structures that have sustained damage during an earthquake. The reinforcement scheme described here is a hybrid seismic retrofitting technique that combines noncompression X-bracing using CF with externally bonded GF sheets to strengthen RC structures that have sustained damage following an earthquake. The GF sheet is used to improve the ductility of columns, and the noncompression CF X-bracing system, which consists of CF bracing and anchors to replace the conventional steel bracing and bolt connections, is used to incr
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Dan, Sorin, Corneliu Bob, Catalin Badea, et al. "Carbon Fiber Reinforced Polymers Used for Strengthening of Existing Reinforced Concrete Structures." Materiale Plastice 55, no. 4 (2018): 536–40. http://dx.doi.org/10.37358/mp.18.4.5069.

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The paper deals with some aspects regarding the behavior of modern and efficient solutions - for rehabilitation of reinforced concrete framed structures. The paper is devoted to experimental studies on carbon fiber reinforced polymer (CFRP) systems used as strengthening solution for reinforced concrete (RC) frames assumed as existing structures, which were tested as un-strengthened and as (CFRP) strengthened structures. Single span and single story frames (scale 1:2) were designed and detailed according to the Romanian design codes from 1970s under which seismic design was inadequate. The RC d
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Choi, Seung-Ho, Jin-Ha Hwang, Sun-Jin Han, Hyo-Eun Joo, Hyun-Do Yun, and Kang Su Kim. "Seismic Performance Assessments of RC Frame Structures Strengthened by External Precast Wall Panel." Applied Sciences 10, no. 5 (2020): 1749. http://dx.doi.org/10.3390/app10051749.

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In recent years, a variety of strengthening methods have been developed to improve the seismic performance of reinforced concrete (RC) frame structures with non-seismic details. In this regard, this study proposes a new type of seismic strengthening method that compresses prefabricated precast concrete (PC) walls from the outside of a building. In order to verify the proposed method, a RC frame structure strengthened with precast walls was fabricated, and cyclic loading tests were performed. The results showed that specimens strengthened using the proposed method exhibited further improvements
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Kang, Dae Hyun, Won Gyun Lim, Hye Ran Kim, Mi Hwa Lee, and Hyun Do Yun. "Structural Behaviors of Non-Ductile Reinforced Concrete Frames with Engineered Cement Composite (ECC) Wing Wall Elements." Applied Mechanics and Materials 597 (July 2014): 328–31. http://dx.doi.org/10.4028/www.scientific.net/amm.597.328.

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In this paper, an experimental investigation was carried out to evaluate the application of engineered cement composite (ECC) wing wall elements for seismic strengthening of reinforced concrete (RC) buildings with non-ductile reinforcement details. The ECC is mixed with cement, silica fume, fly ash and polyvinyl alcohol (PVA) fiber. The ECC wing wall elements were fitted on three side of RC frame; upper beam, lower beam and column. Two specimens, non-ductile RC bare frame and RC frame strengthened with ECC wing wall, were made for this study. These specimens were made as a third scale for this
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Dissertations / Theses on the topic "Reinforced Concrete Frames, RC Frames, Seismic Strengthening, External Strengthening"

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Ozkok, Mustafa Emre. "Seismic Upgrade Of Deficient Reinforced Concrete Frames Using External Systems." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611973/index.pdf.

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There is a large building stock in seismic regions of Turkey that require seismic upgrades. In order to minimize the disturbance to occupants and not to intervene with the functioning of the building, external strengthening methods can be preferred among different alternatives. This study reports the experimental findings on the upgrading of deficient reinforced concrete frames with external installed structural components. Specimens strengthened with an externally reinforced concrete shear wall, external steel frames, steel plate shear wall and one as-built reference 1/3-scale portal frame sp
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Akin, Emre. "Strengthening Of Brick Infilled Rc Frames With Cfrp Reinforcement-general Principles." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613172/index.pdf.

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There is an excessive demand for the rehabilitation of frame type reinforced concrete (RC) buildings which do not satisfy current earthquake code provisions. Therefore, it is imperative to develop user-friendly seismic strengthening methodologies which do not necessitate the evacuation of building during rehabilitation period. In this study, it was aimed to strengthen the brick infill walls by means of diagonal Carbon Fiber-Reinforced Polymer (CFRP) fabrics and to integrate them with the existing structural frame in order to form a new lateral load resisting system. The possible effects of h
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Muhaj, Helisa. "Seismic strengthening of reinforced concrete beams by post-tensioning with anchorages by bonding." Doctoral thesis, 2020. http://hdl.handle.net/10362/103102.

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RC moment resisting frame buildings are one of the most used structural systems in seismic prone regions. These structures dissipate energy by concentrating the inelastic behaviour (i.e. the damage) in the plastic hinge regions of the structural elements, that form preferably on the beams ends. Since Capacity Design has been part of the Design Codes for some years now, some moment resisting frame buildings have suffered seismic events. Although in most of the cases the ductile performance of structures has successfully preserved the human lives and no collapse has occurred, deficiencies
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Book chapters on the topic "Reinforced Concrete Frames, RC Frames, Seismic Strengthening, External Strengthening"

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Akin, Emre, Guney Ozcebe, and Ugur Ersoy. "Strengthening of Brick Infilled Reinforced Concrete (RC) Frames with Carbon Fiber Reinforced Polymers (CFRP) Sheets." In Seismic Risk Assessment and Retrofitting. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2681-1_18.

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Conference papers on the topic "Reinforced Concrete Frames, RC Frames, Seismic Strengthening, External Strengthening"

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Badini, Lorenzo, Cosimo A. de Stefano, and Alberto Custodi. "Seismic Strengthening of Existing RC Structure Through External 3D Exoskeleton." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.1017.

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<p>The seismic hazard in the southern regions of Europe is known as one of the most critical issues when considering the improvement of the existing buildings in terms of energy and structural behavior. The use of integrated plug-and-play systems can be a solution to the most common obstacles occurring during the different phases in the building practices: from the design to the realization. Within the framework of the European project Pro-GET-onE, a case of structural strengthening obtained by applying a steel exoskeleton connected to the reinforced concrete (RC) structures of an existi
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