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Letteratura scientifica selezionata sul tema "RCC FRAME"

Autore: Grafiati

Pubblicato: 11 settembre 2023

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Articoli di riviste sul tema "RCC FRAME"

Amrapali Kasabe e Vaibhav Shelar. "Pushover analysis of building using soft story at different levels". World Journal of Advanced Engineering Technology and Sciences 9, n. 1 (30 giugno 2023): 203–10. http://dx.doi.org/10.30574/wjaets.2023.9.1.0160.

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In India the enormous loss of life and property perceived in the last couple of decades, attributable to failure of structures instigated by earthquakes. Responsiveness is now being given to the assessment of the sufficiency of strength in framed RCC structures to resist solid ground motions. The seismic reaction of RCC building frame in terms of performance point and the earthquake forces on Reinforced building frame with the help of pushover analysis is carried out in this project. In this method of analysis a model of the building is exposed to a lateral load. Pushover analysis can afford a substantial insight into the weak links in seismic concert of a structure and we can know the weak zones in the structure. In this project effort has been made to investigate the effect of Shear Wall and Structural Wall on lateral displacement and Base Shear in RCC Frames. RCC Frames with G+13 are considered, one with soft storey and other with normal building in L- shape. The pushover analysis of the RCC building frame is carried out by structural analysis and design software ETABS.

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Laxmi, P. S., e Dr D. K. Kulkarni. "Damage Recognition in RCC Building Frame". Bonfring International Journal of Man Machine Interface 4, Special Issue (30 luglio 2016): 145–50. http://dx.doi.org/10.9756/bijmmi.8172.

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Bore, Miss Sapana, e Prof R. M. Desai. "Wind Analysis of RCC Tube in Tube Structure". International Journal for Research in Applied Science and Engineering Technology 10, n. 11 (30 novembre 2022): 1691–701. http://dx.doi.org/10.22214/ijraset.2022.47703.

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Abstract: Modern tall buildings have efficient structural systems, and utilize high-strength materials, resulting in reduced building height, and thus, become slenderer and more flexible with low damping. These flexible buildings are very sensitive to wind excitation and earthquake load causing discomfort to the building occupants. Therefore, in order to mitigate such an excitation and to improve the performance of tall buildings against wind loads and earthquake loads, the tube in tube structures and tube frame structures are the innovative and fresh concept in the tubular structures. Generally, tube in tube structures is formed by connecting peripheral frame tube and inner core tube so closely, it is not seen as a solid system but it acts like a solid surface. The total loads acting on the structures to be collectively shared between the inner and outer tubes. The tubed frames Structure are new concept for tall building. In tubed mega frames instead of one central tube several vertical tubes are carrying the lateral loads. a comparative study of tube in tube structures and tubed mega frame system with different building geometry has been done using ETABS software.

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M, Ramesh, e Dr Chidananda G. "A Study on Seismic Performance of Open Ground Storey RCC Frames Analyzed by Response Spectrum Method". International Journal for Research in Applied Science and Engineering Technology 10, n. 10 (31 ottobre 2022): 420–28. http://dx.doi.org/10.22214/ijraset.2022.47006.

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Abstract: In the present study, seismic performance of Open Ground Storey (OGS) RCC frames is investigated using ETABS software. Bare frame, OGS frames and frames with RCC walls at ground storey are considered and infill walls are modelled as equivalent diagonal strut as per IS 1893–Part 1 (2016) codal provisions and equation given by Paulay and Priestley (1992). Seismic parameters viz. storey displacement, drift ratio, stiffness, shear and overturning moments for the developed RCC models are obtained by response spectrum analysis as per IS 1893–Part 1 (2016) in seismic zone III.

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Raju, Y. Kamala, G. V. V. Satyanarayana e G. Arun Sai. "RCC Highrised Residential Buildings its Influence on Earthquake Loads". E3S Web of Conferences 184 (2020): 01107. http://dx.doi.org/10.1051/e3sconf/202018401107.

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The present decade, high rise multi-storey buildings are subjected to many external effects such as earthquake, wind loads, tidal loads, etc., in most cases high rise buildings have more vulnerable to earthquake and wind loads. Most of the reinforced concrete multi-storeyed frame buildings were heavily damaged and many of them completely collapsed during due earthquakes. RC frame buildings were severely damaged due to various deficiencies when proper codal provisions are not designed. A study is need to study the behaviour of the RC framed structure under earthquake load to reduce the damage caused by earthquake forces In this investigation a RC framed building of G+20 storeyed is considered in several seismic zones under different soils as per Indian Standard code IS 1893(part1):2016, using STAAD. Pro V8i as software tool. Finally evaluate the ultimate Base shear using Equivalent static method and Response spectrum method addressing under design forces.

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Arastu, M., e K. Moin. "Seismic Analysis of Reinforced Concrete Frame Using Shake Table Test". Journal of Applied Engineering Sciences 13, n. 1 (1 aprile 2023): 23–26. http://dx.doi.org/10.2478/jaes-2023-0004.

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Abstract Recently, the reinforced cement concrete (RCC) frame has been one of the most commonly used structural systems for buildings in the high seismic region due to its inherent earthquake-resistant property. However, there is still a deficiency in understanding the RCC building structural system dynamic behaviour during significant earthquakes. A 1/4th scaled RCC framed building structure has been tested on the shake table in the present study. The response in terms of engineering parameters like natural time period, damping, story acceleration, and damage pattern have been reported. The 1940 EL-Centro (NS component) time history has been used for the study. The failure patterns were observed within the column-beam joints. The difference between the input signal and the output signal has been noted and found to be in good agreement with each other.

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Kuddus, Mir Abdul, e Partha Pritom Dey. "Cost Analysis of RCC, Steel and Composite Multi-Storied Car Parking Subjected to High Wind Exposure in Bangladesh". Civil Engineering Journal 3, n. 2 (28 febbraio 2017): 95–104. http://dx.doi.org/10.28991/cej-2017-00000076.

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Steel-concrete composite constructions in Bangladesh are nowadays very popular owing to their advantages over conventional concrete and steel constructions. Concrete structures are massive and allot more seismic weight and less deflection whereas steel structures instruct more deflections and ductility to the structure, which is beneficial in resisting earthquake and wind forces. Composite construction combines the better properties of both steel and concrete along with lesser cost, speedy construction, fire protection etc. The objective of this study was to analysis and design ground floor plus 19 storied R.C.C, Steel and Composite (steel-concrete) multi-storied parking structure’s frame of same plan using ETABS 2013 software and compare their structural parameters with estimated cost for required material. All frames are designed for same gravity and dynamic loadings. The RCC deck-slab is used in steel and composite frame. Beam and column sections are made of RCC, steel or steel-concrete composite sections. The composite construction option provided about 25 % and 18% less cost when compared to RCC and steel structure, respectively. Comparative study concludes that the composite frames are best suited among all the three types of constructions in terms of material cost and benefit added with better structural behaviour.

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V, Indrani, Shubha D. K e Lavina E. J. "Dynamic Analysis of Multistory RCC Building Frame with Flat Slab and Grid Slab". International Journal of Trend in Scientific Research and Development Volume-2, Issue-4 (30 giugno 2018): 1143–48. http://dx.doi.org/10.31142/ijtsrd14269.

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Verma, Pankaj Kumar. "Comparative Study Seismic Analysis of RCC, Steel & Steel-Concrete Composite Frame: A Review". International Journal for Research in Applied Science and Engineering Technology 9, n. 8 (31 agosto 2021): 2369–72. http://dx.doi.org/10.22214/ijraset.2021.37665.

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Abstract: This study examines how composite structures are gaining popularity in developing countries. For medium and high levels in RCC buildings are no longer economical due to increased weight, range limitations and low natural frequencies and dangerous formwork. Steel and concrete composite structures are becoming increasingly popular today and are safe throughout their useful lives. Round Steel and concrete structures are the best solution for modern buildings. In this article we will discuss the various results of building construction for RCC, metal and composite construction taking into account different studies. Keyword: RCC Structure, Steel Structure, Composite Structure, Joint Displacement, Base Shear

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Sanjay, Phatale Swarup. "Seismic Analysis of RCC, Steel and Steel Concrete Composite Frame". International Journal for Research in Applied Science and Engineering Technology 7, n. 7 (31 luglio 2019): 249–55. http://dx.doi.org/10.22214/ijraset.2019.7037.

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Più fonti

Tesi sul tema "RCC FRAME"

Steele, John Phillip. "Composite RCS frame systems: construction and peformance". Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/181.

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The objective of this research program is to further evaluate the performance and constructability of reinforced concrete (RC) column-steel beam-slab systems (RCS) for use in low- to mid-rise space frame buildings located in regions of high wind loads and/or moderate seismicity. To better understand these systems, two full scale RCS cruciform specimens were tested under bidirectional quasi-static reversed cyclic loading. The experimental portion of this research program included the construction and testing of two full-scale cruciform specimens with identical overall dimensions but with different joint detailing. The two joint details evaluated were joint cover plates and face bearing plates with localized transverse ties. The construction process was recorded in detail and related to actual field construction practices. The specimens were tested experimentally in quasi-static reversed cyclic loading in both orthogonal loading directions while a constant axial force was applied to the column, to simulate the wind loads in a subassembly of a prototype building. To compliment the experimental work, nonlinear analyses were performed to evaluate the specimen strength and hysteretic degradation parameters for RCS systems. In addition, current recommendations in the literature on the design of RCS joints were used to estimate specimen joint strength and were compared with the experimental findings.

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Ronchini, Michele. "A comparative analysis of seismic design strategies for R.C. frame structures". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8549/.

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Negli ultimi anni sono state sviluppate varie soluzioni tecniche per la progettazione sismica di strutture. Questa ricerca sviluppa un metodo di confronto basato sull'analisi di costi di costruzione e danni causati dal sisma. Il metodo viene applicato al caso di studio della scuola di Bisignano (CO, Italia). L'edificio è stato progettato conformemente alle NTC 2008 con approccio tradizionale e combinando il contributo di dissipatori viscosi e dissipazione isteretica. Le strutture vengono poi analizzate sotto diverse condizioni sismiche al fine di calcolare i costi di riparazione attesi e comprendere quale soluzione tecnica risulti più economicamente vantaggiosa a parità di azione sismica di progetto.

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Cornelio, Tony Justin. "Effect of infill panels on the seismic response of a typical R.C. frame". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2868/.

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Three structural typologies has been evaluated based on the nonlinear dynamic analysis (i.e. Newmark's methods for MDFs: average acceleration method with Modified Newton-Raphson iteration). Those structural typologies differ each other only for the infills presence and placement. In particular, with the term BARE FRAME: the model of the structure has two identical frames, arranged in parallel. This model constitutes the base for the generation of the other two typologies, through the addition of non-bearing walls. Whereas with the term INFILLED FRAME: the model is achieved by adding twelve infill panels, all placed in the same frame. Finally with the term PILOTIS: the model has been generated to represent structures where the first floor has no walls. Therefore the infills are positioned in only one frame in its three upper floors. All three models have been subjected to ten accelerograms using the software DRAIN 2000.

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Tarassu, Jonas. "GPU-Accelerated Frame Pre-Processing for Use in Low Latency Computer Vision Applications". Thesis, Linköpings universitet, Informationskodning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-142019.

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The attention for low latency computer vision and video processing applications are growing for every year, not least the VR and AR applications. In this thesis the Contrast Limited Adaptive Histogram Equalization (CLAHE) and Radial Dis- tortion algorithms are implemented using both CUDA and OpenCL to determine whether these type of algorithms are suitable for implementations aimed to run at GPUs when low latency is of utmost importance. The result is an implemen- tation of the block versions of the CLAHE algorithm which utilizes the built in interpolation hardware that resides on the GPU to reduce block effects and an im- plementation of the Radial Distortion algorithm that corrects a 1920x1080 frame in 0.3 ms. Further this thesis concludes that the GPU-platform might be a good choice if the data to be processed can be transferred to and possibly from the GPU fast enough and that the choice of compute API mostly is a matter of taste.

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Nicoletti, Vanni. "Experimental Evaluation of Infill Masonry Walls Stiffness for the Modelling of Non-Structural Components in R.C. Frame Buildings". Doctoral thesis, Università Politecnica delle Marche, 2018. http://hdl.handle.net/11566/253124.

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Solitamente le tamponature vengono trascurate nella modellazione delle strutture a telaio in cemento armato e solamente il loro contributo in termini di massa viene preso in considerazione, assumendo che la resistenza e la rigidezza delle stesse non influiscano sulla risposta strutturale. Questa pratica è supportata dal fatto che (i) generalmente allo stato limite ultimo le tamponature si considerano completamente danneggiate e, quindi, il loro contributo in termini di rigidezza è trascurabile, mentre (ii) allo stato limite di danno il valore dello spostamento di interpiano, ottenuto trascurando il contributo di rigidezza delle tamponature, può essere considerato a favore di sicurezza. Tuttavia, per edifici di importanza strategica, quali scuole, ospedali, caserme delle forze dell’ordine e dei Vigili del Fuoco, è cruciale preservare le tamponature da qualsiasi danno, anche per terremoti di entità severa, in modo da garantire il normale utilizzo dell’edificio durante la gestione dell’emergenza. Inoltre, questi edifici a volte sono sismicamente protetti con sistemi e dispositivi (smorzatori, isolatori, ecc…) il cui progetto richiede che sia tenuto in considerazione il reale comportamento dinamico della struttura (in termini di frequenze e/o spostamenti e/o velocità). Per questo diventa cruciale modellare accuratamente l’intera struttura, includendo le tamponature, e validare questo modello così ottenuto sulla base dell’evidenza sperimentale. La tipologia delle pareti e le loro procedure costruttive sono fonte di incertezze nella modellazione delle interazioni tra la struttura e gli elementi non strutturali. Quindi, una valutazione sperimentale delle proprietà di rigidezza dei pannelli di tamponatura potrebbe essere molto utile per valutare, all’interno del modello strutturale adottato per il progetto, il contributo in termini di rigidezza fornito alla struttura in c.a. da questi elementi non strutturali. In questa tesi viene presentata una procedura per realizzare modelli globali agli elementi finiti accurati di edifici a telaio in c.a. tamponati, basandosi su risultati ottenuti da analisi modali sperimentali e operative sviluppate rispettivamente su elementi non strutturali e sull’intero edificio. In particolare, sono stati eseguiti test di impatto con martello strumentato su pareti omogenee per identificarne i parametri modali (frequenze e forme modali) e per stimarne le proprietà meccaniche. Dopo di che, le tamponature sono state inserite nel modello strutturale globale agli elementi finiti, i cui parametri modali vengono confrontati con quelli derivanti da analisi modali operative basate su misurazioni di vibrazioni ambientali per valutarne l’accuratezza. In seguito, è stata condotta una campagna sperimentale su tre provini di tamponatura costruiti all’interno del Laboratorio di Prove di Materiali e Strutture della Facoltà di Ingegneria dell’Università Politecnica delle Marche. Questi provini sono stati realizzati con l’intento di riprodurre le caratteristiche di alcune delle tamponature testate in sito e su di essi vengono svolte prove sia dinamiche che statiche. Innanzi tutto, sono stati effettuati test ad impatto con martello strumentato per investigarne il comportamento dinamico fuori dal piano; successivamente sono state svolte prove di spinta laterale per investigare il comportamento statico nel piano dei pannelli soggetti a bassi livelli di forze orizzontali. I risultati sperimentali ottenuti sono stati utilizzati per calibrare modelli agli elementi finiti dei provini al fine di valutare l’esattezza delle proprietà meccaniche delle tamponature stimate in precedenza e secondo diversi approcci.
Infill walls are commonly disregarded in the modelling of reinforced concrete (r.c.) frame structures and only their contribution in terms of mass is taken into account assuming that resistance and stiffness do not affect the structural response. This practice is supported by the fact that (i) at ultimate limit state infill walls are usually considered to be completely damaged, so that their contribution is negligible in terms of stiffness, while (ii) at the damage limitation limit state the value of the interstorey drift, obtained by neglecting the infill walls stiffness contribution, is commonly considered to be conservative. However, for strategic buildings, such as schools, hospitals, police and fire stations, it is crucial to preserve the infill walls from any damage, even for severe earthquake, in order to guarantee the building occupancy during the emergency management. Furthermore, these buildings are sometimes seismically protected with system and devices (dampers, isolators, etc…) whose design requires the real dynamic behaviour of the structure (in terms of frequencies and/or displacements and/or velocities) to be considered. To this purpose, it becomes crucial to accurately model the entire structure, including infill walls, and to validate this model on the basis of experimental evidences. The wall typology and the construction procedures are source of uncertainties in modelling interactions between structural and non-structural components. Thus, an experimental evaluation of the stiffness properties of the wall infill panel could be very useful to assess the stiffening contribution added by the infill masonry walls to the concrete frame in the structural model adopted for the design. In this thesis is presented a procedure for developing accurate global finite element (f.e.) models of infilled r.c. frame buildings based on results of experimental an operational modal analysis of non-structural components and of the whole buildings. In particular, impact load tests with an instrumented hammer are performed on homogeneous wall panels to identify the modal parameters (frequency and mode shapes) and to estimate the mechanical properties of the masonry walls. Afterwards, the infill walls are included in the f.e. structural model, whose modal parameters are compared with those derived with operational modal analysis based on ambient vibration measurements. Furthermore, an experimental campaign on three specimens of infill masonry walls built in the Laboratory of Materials and Structures of the Faculty of Engineering at the Università Politecnica delle Marche is conducted. These specimens are built with the target to reproduce the features of some of the in situ investigated infill walls and are tested both dynamically and statically. First of all, impact load tests with an instrumented hammer are performed to investigate the out of plane dynamic behaviour of these walls; then, lateral load tests are carried out to investigate the in plane static behaviour of the panel under low level of lateral forces. The experimental results obtained are used to calibrate f.e. models of the specimens with the aim to evaluate the reliability of the masonry mechanical properties estimated through different approaches.

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Kyakula, Michael. "An improved spread plasticity model for inelastic analysis of R.C. frames subject to seismic loading". Thesis, University of Newcastle Upon Tyne, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399361.

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Priori, Fábio Rodrigues. "Análise dos métodos A3, FRAM e RCA aplicados para a solução de problemas em ambiente hospitalar". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/173156.

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A solução de problemas é parte fundamental da manutenção da qualidade e da melhoria contínua. Ao longo dos anos diversos métodos foram desenvolvidos para solucionar problemas, todavia nem todos os métodos são aplicáveis em todos os problemas ou adequados para todos os setores. Caracterizado pelo ambiente em constante mudança, o setor hospitalar possui problemas complexos, cuja solução necessita de uma abordagem adequada e robusta. Dessa forma, o presente trabalho objetiva avaliar o desempenho de três métodos normalmente utilizados para solução de problemas: A3, RCA e FRAM, quando aplicados em ambiente hospitalar. Para esse fim, os três métodos foram aplicados no mesmo processo, de prescrição e medicação, de um hospital universitário. Os resultados das aplicações foram analisados de acordo com os critérios: número total de ações de melhoria propostas, dificuldade de implementação, a possibilidade de replicação das ações entre as unidades do hospital, o tempo necessário para aplicação dos métodos, o número de envolvidos, a necessidade de capacitação da equipe e um indicador de prioridade das ações propostas. Além disso, a percepção dos profissionais da saúde em relação aos métodos foi analisada. Os resultados demonstram que, no contexto avaliado, os métodos apresentaram um bom desempenho, por terem apresentado melhorias que, em média, foram consideradas adequadas pela instituição.
Problem solving is a fundamental part for quality maintenance and continuous improvement. Through the years many methods were developed to solve problems, though these methods do not apply to every problem, or are suitable to every type of activity. Kwon for its constant changing nature, hospitals have complex problems, which need a suitable and robust approach to solve. Thus, the present study has the objective of evaluating the performance of three methods usually used for problem solving: A3, RCA and FRAM, when applied on a hospital. For this, the three methods were applied in the same process, of prescription and medication, in an academic hospital. The results were analyzed accordingly to the following criteria: the total number of improvement actions proposed, implementation difficult, replication possibility along the departments of the hospital, the time needed to apply the methods, the number of people involved, the need of training for the team and an indicator for prioritization. Besides that, the health sector workers’ perception regards the methods was analyzed. The results evidence that, in the studied context, the methods had good performance, because introduced improvements that, on average, were considered suitable for the institution.

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Stramondo, Paola Roberta. "Formulazione di un metodo di progetto per l'adeguamento sismico di telai in C.A. mediante controventi ad instabilità impedita". Doctoral thesis, Università di Catania, 2016. http://hdl.handle.net/10761/4061.

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Molti degli edifici in c.a. esistenti sono stati progettati in passato per soli carichi verticali o per modeste azioni sismiche e necessitano di un intervento di adeguamento sismico per rispondere ai requisiti prestazionali previsti dalle normative attuali. Nella presente Tesi di Dottorato è proposto e validato un metodo basato sugli spostamenti per l adeguamento sismico di tali strutture mediante l impiego di controventi a instabilità impedita (BRBs, Buckling-Restrained Braces), la cui idea di base è stata recentemente presentata per il progetto di telai in acciaio con BRBs (Bosco e Marino, 2013; Bosco et al., 2014). I BRBs sono controventi dissipativi in acciaio che manifestano un ciclo isteretico stabile e un comportamento simile in trazione e in compressione, con una buona capacità di dissipazione energetica grazie agli alti valori di duttilità che possono raggiungere. La procedura di progetto proposta permette di definire, a ogni piano, la rigidezza e la resistenza dei BRBs, tramite la scelta di valori appropriati di area della sezione trasversale, lunghezza del segmento duttile e tensione di snervamento dell acciaio. Il metodo di progetto prevede l imposizione di due requisiti: il requisito sugli spostamenti di interpiano riduce la domanda sismica a valori compatibili con la capacità deformativa della struttura e permette di determinare a ciascun piano la rigidezza laterale aggiuntiva da fornire tramite i controventi; il controllo della duttilità massima subita dai BRBs durante il sisma consente di stabilire la tensione di snervamento e, quindi, la resistenza assiale necessaria per i controventi. Il metodo proposto è applicato a tre casi studio rappresentativi di edifici esistenti che necessitano di adeguamento sismico. L efficacia del metodo è evidenziata tramite analisi dinamiche non lineari condotte sulle strutture controventate al variare dei parametri di progetto.

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Herrmann, Fernando Luís. "IMPLEMENTAÇÃO DE ARQUITETURAS DE PILHA UDP/IP EM HARDWARE RECONFIGURÁVEL BASEADO NO DESEMPENHO DE VAZÃO, LATÊNCIA E TAXA DE PERDA DE QUADROS". Universidade Federal de Santa Maria, 2010. http://repositorio.ufsm.br/handle/1/5355.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico
This work presents the implementation of three architectures of UDP/IP network stack in reconfigurable hardware. Also, presents the development of a Tester based on the RFC 2544 methodology and implemented it in FPGA. This Tester was used to obtain the throughput, latency and frame loss rate results. The performance of the project shows, in average, throughput results 89% better in comparison with a network stack implemented in software (PC) and running over a general purpose microprocessor, for frames with 64 bytes. Regarding latency, the project is 389 times lower for frames with 64 bytes and 13 times lower for frames with 1518 bytes, than the PC. On behalf of frame loss rate, the project doesn t loss frames for any frame sizes used during the tests, while the PC has presented a frame loss of almost 98% for frames with 64 bytes.
Este trabalho apresenta a implementação de três arquiteturas da pilha de comunicação UDP/IP em hardware reconfigurável. Também apresenta o desenvolvimento de um Testador baseado na metodologia da RFC 2544 e implementado em uma placa dotada de dispositivo FPGA. Esse Testador foi utilizado na obtenção dos resultados de vazão, latência e taxa de perda de quadros. O desempenho do projeto apresentou, em média, 89% a mais de vazão, para quadros de 64 bytes, que uma pilha de comunicação implementada em software (PC) e executada sobre um microprocessador de propósito geral. Em termos de latência, o projeto apresentou uma latência 389 vezes menor para quadros de 64 bytes e 13 vezes menor para quadros de 1518 bytes, que o PC. E em relação à taxa de perda de quadros, o projeto não apresentou perda para nenhum dos tamanhos de quadros utilizados durante os testes, enquanto o PC apresentou perda de quase 98% para quadros de 64 bytes.

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SPERANZA, ELISA. "The Importance of Calibration and Modelling Non-Structural Elements in the Evaluation of Seismic Vulnerability Index of Strategic Buildings Before and After Retrofitting". Doctoral thesis, Università Politecnica delle Marche, 2020. http://hdl.handle.net/11566/274486.

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Questa tesi si propone di indagare sulla modellazione degli elementi non strutturali relativi alle pareti di tamponamento interne ed esterne, cercando di quantificare la differenza indotta dalle diverse strategie di modellazione sul valore dell'indice di vulnerabilità sismica con riferimento a edifici strategici. A tale scopo vengono analizzati due casi studio: il liceo Benedetto Croce di Avezzano e il liceo Varano di Camerino, entrambi edifici a telaio in c.a. oggetto di adeguamento sismico tramite torri dissipative esterne dotate di dissipatori viscosi alla base. Per entrambi i casi di studio, sono stati implementati tre modelli sia prima che dopo l'adeguamento, caratterizzati da un livello crescente di dettaglio: modello A con solo le componenti strutturali, modello B con tamponature esterne modellate come puntoni equivalenti secondo letteratura e modello C con pareti di tamponamento esterne ed interne calibrate attraverso i risultati dei test dinamici in situ. Per quanto riguarda la fase di pre-retrofitting, il calcolo dell'indice di vulnerabilità sismica è stato effettuato mediante analisi statica non lineare (pushover). Per quanto riguarda la fase post-retrofitting, il calcolo dell'indice di vulnerabilità sismica è stato effettuato mediante analisi dinamica non lineare (I.D.A). I risultati sono mostrati in termini di confronto tra le curve di capacità ottenute con analisi push over (pre-retrofitting) e con analisi dinamiche incrementali, per i diversi modelli implementati. Inoltre, i risultati sono mostrati anche in termini di livello di intensità dell'azione sismica necessaria per raggiungere uno stato limite predeterminato per il modello A, il modello B e il modello C.
This thesis aims to investigate on the modelling of the non-structural elements related to internal and external infill walls, trying to quantify the difference induced by different modelling strategies on the value of the seismic vulnerability index with reference to strategic buildings. On this purpose, two case studies are analysed: the Benedetto Croce high school in Avezzano and the Varano high school in Camerino, r.c. frame buildings retrofitted with external steel towers equipped with viscous dampers at the basis. For both case studies, three models are implemented, before and after the retrofitting, which are characterized by an increasing level of detail: model A with only structural components, model B with external infill panels modelled as equivalent connecting struts according to literature, and model C with external and internal infill walls calibrated through the results of in-situ dynamic tests. As regards the pre-retrofitting phase, the calculation of the seismic vulnerability index was carried out by means of nonlinear static analysis (pushover). As for the post-retrofitting phase, the calculation of the seismic vulnerability index was carried out by means of non-linear dynamic analysis (I.D.A). The results are shown in terms of comparison between the capacity curves obtained with push over analyses (pre-retrofitting) and with incremental dynamic analyses for the different model. In addition, the outcomes are shown also in terms of intensity level of the seismic action necessary to reach a predetermined limit state for model A, model B and model C.

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Libri sul tema "RCC FRAME"

Inc, Game Counselor. Game Counselor's Answer Book for Nintendo Players. Redmond, USA: Microsoft Pr, 1991.

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Inc, Game Counsellor, a cura di. The Game Counsellor's answer book for Nintendo Game players: Hundredsof questions -and answers - about more than 250 popular Nintendo Games. Redmond, Washington: Microsoft Press, 1991.

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Capitoli di libri sul tema "RCC FRAME"

Sneha, S. D., H. Hema e R. Abishek. "A Comparative Study on RCC Structures (Frame, Infill, Bracings, Wire Frame and Shear Wall)". In Lecture Notes in Civil Engineering, 99–114. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-3317-0_9.

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Rakshita, R., C. Daniel, G. Hemalatha, L. Sarala, D. Tensing e S. Sundar Manoharan. "Studies on Modeling and Control of RCC Frame with MR Damper". In Lecture Notes in Civil Engineering, 223–34. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5001-0_18.

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Soni, Akash, Manohari P. Kulkarni e Shardul G. Joshi. "Evaluation of Response Reduction Factor for RCC Moment Resisting Frame with Ductile Shear Wall". In Lecture Notes in Civil Engineering, 141–47. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6463-5_14.

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Singh Oinam, Manoranjan, e S. S. Ningthoukhongjam. "Comparison of Seismic Performance of Composite (RCS) Frame with RC Frame Using Pushover Analysis". In Lecture Notes in Civil Engineering, 31–44. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5235-9_3.

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Ramdas, Laxmi M., e M. Helen Santhi. "Seismic Performance Analysis of Regular and Irregular RCC Framed Building with Dampers". In Lecture Notes in Civil Engineering, 345–56. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4617-1_28.

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Elmasry, Mohamed I. S., Melad Belal Said e Essam A. Elkordy. "Retrofitting Gravity Load Designed R.C Frames Using FRP". In Advances and Challenges in Structural Engineering, 1–13. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01932-7_1.

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Nagpure, Akshay, e S. S. Sanghai. "Effect of Floor Diaphragms on Seismic Response of RCC Framed Building—A Review". In Smart Technologies for Energy, Environment and Sustainable Development, 323–33. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6148-7_33.

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Philip, Pinky Merin, C. K. Madheswaran e Eapen Skaria. "Retrofitting of Seismically Damaged Open Ground Storey RCC Framed Building with Geopolymer Concrete". In Advances in Structural Engineering, 463–81. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-2190-6_39.

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Azam, Shaik Kamal Mohammad, Shaik Abdulla e Nadeem Pasha. "Life Assessment and Extension of RCC Framed Building Subjected to Fatigue Loading Analytical Approach". In Lecture Notes in Mechanical Engineering, 549–65. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4779-9_37.

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Manohar, Sharad, e Suhasini Madhekar. "Frames and Diaphragms: Design and Detailing". In Seismic Design of RC Buildings, 199–267. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2319-1_6.

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Atti di convegni sul tema "RCC FRAME"

Lebarbé, T., C. Petesch, D. Bonne, F. de la Burgade e M. Blat-Yrieix. "2012 Edition of the RCC-MRx: Adaptation of Rules to the Evolution of Projects Needs and International Exchanges". In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78330.

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In 2012, AFCEN (Association Française pour les règles de Conception et de Construction des Matériels des Chaudières Electro-nucléaires) will publish the fifth edition of the RCC-MR code, named RCC-MRx 2012. This RCC-MRx Code is the result of the merger of the RCC-MX 2008 developed in the context of the research reactor Jules Horowitz Reactor project, in the RCC-MR 2007 which set up rules applicable to the design of components operating at high temperature and to the Vacuum Vessel of ITER. RCC-MRx, developed especially for Sodium Fast Reactors (SFR), Research Reactors (RR) and Fusion Reactors (FR-ITER) can also be used for components of other types of nuclear facilities (except PWR). It has been consider for instance in the frame of the CEN-Workshop (CEN-WS-MRx) in order to develop, on its basis, the European code for the design and fabrication of mechanical equipments for ESNII innovative nuclear installations. The main objective of the RCC-MRx is to capitalize the technical feedback of projects such as SUPERPHENIX, JHR, but also to meet the needs of MYRRHA, PFBR and ASTRID projects and to prepare the design and construction of ALFRED and ALLEGRO. This paper presents the technical evolutions in the 2012 edition and the AFCEN organization dedicated to work in an international frame.

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Triay, Manuela, Eric Meister, Benoît Lefever, Sylvain Puybouffat, Julien Quéré, Emmanuel Chantelat, David Muller, Julien Cadith, Stéphane Marie e Nicolas de Mathan. "RCC-M Code: Recent Evolutions and Perspectives". In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93343.

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Abstract This paper covers the general approach followed by AFCEN, the French Society for Design, Construction and In-Service Inspection Rules for Nuclear Island Components in updating the nuclear code RCC-M, from the technical and organizational points of view. The main evolutions introduced in recent editions of RCC-M code are presented and commented on, with a focus on the 2018 edition of the code, which marks the end of the 3-year program carried out to demonstrate the conformity with European essential safety requirements for pressure equipment and French requirements for nuclear pressure equipment. In addition, the main on-going activities are presented, as well as the future activities of the RCC-M subcommittee, in the frame of the 4-year editorial program that has been launched in 2019, in line with the AFCEN 4-year strategic plan. They encompass all fields covered by the code: design and analysis rules, material procurement, fabrication and nondestructive testing. The paper highlights how the industrial experience is integrated into the RCC-M code, and also how the new projects needs are taken into account.

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Malouines, Philippe, e Jean-Marie Grandemange. "RCC-M: Content, Working Approach and Future Evolutions". In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57069.

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The paper covers the general approach followed by AFCEN, the French Society for Design, Construction and In-Service Inspection Rules for Nuclear Island Components, in codes and standards establishing, from the technical and organizational points of views. The RCC-M code is the major reference code existing since the creation of AFCEN. The presentation highlights how the industrial experience was integrated into the industrial codes, and how codes evolve taking into account the evolution of regulations and European and International standards. Processes for updates, interpretations and inquiries are addressed. Recent code evolutions resulting from the New French Nuclear Pressure Equipment Regulation issued in 2005, as well as from the project needs, are covered and the content of the addenda 2008, 2009, 2010 to the 2007 RCC-M edition are described. Future evolutions are also addressed, giving the frame for the objective of a new RCC-M edition in 2012.

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Morshed, Syed Ahnaf, Istiakur Rahman e Md Jahidul Islam. "A Numerical Study of Vertical Discontinuity of RCC Frame Structures by Finite Element Analysis". In Annual International Conference on Architecture and Civil Engineering (ACE 2016). Global Science & Technology Forum ( GSTF ), 2016. http://dx.doi.org/10.5176/2301-394x_ace16.90.

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Malouines, Philippe. "Presentation of New Edition of RCC M Code in 2012". In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78033.

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The paper covers the general approach followed by AFCEN, the French Society for Design, Construction and In-Service Inspection Rules for Nuclear Island Components, in codes and standards, from the technical and organizational points of views. The RCC-M code is the major reference code in existence since the creation of AFCEN. The presentation highlights how the industrial experience is currently integrated into the industrial codes, and how codes evolve taking into account the enlargement of AFCEN, new AFCEN organization rules, international environment, and international best practices. Processes for updates, interpretations and inquiries are addressed. New 2012 Edition of the Code integrates addenda 2011, 2010, 2009 and 2008 of 2007 Edition. Modification sheets of Addenda 2011 are detailed, in particular because this addendum will not be published, and will be directly integrated in 2012 Edition. Future evolutions are also addressed, giving the frame for the objective of new RCC-M addenda in 2013.

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Kumar Jha, Ankit, Satyam Mandloi, Ayush Rai e Rajesh Kumar. "Comparative Study of Indian Codes with Approximate Methods in Analysis and Design of Multi-Storey RCC Frame Structure". In Annual International Conference on Architecture and Civil Engineering (ACE 2014). Global Science and Technology Forum, 2014. http://dx.doi.org/10.5176/2301-394x_ace14.117.

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Liu, Yin, Hai Xie, Zichen Kong, Xuejiao Shao, Stephan Courtin, Sam Cuvilliez e Furui Xiong. "Fatigue Benchmark Comparison Effort Between Code_Aster and CNNC/NPIC Software – Part 3". In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-78364.

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Abstract Fatigue is a phenomenon identified as a significant degradation mode which affects industrial facilities, in particulier the lifespan of nuclear power plants. As one of its important branches, the environmentally assisted fatigue (EAF) considers not only effects of unfavorable mechanical and thermal conditions, but also PWR primary water environment in nuclear components. This phenomenon can accelerate fatigue related structure failure for common materials in nuclear components such as austenitic stainless steels and nickel-based alloys. Within this frame of reference, the RCC-M code formulated by AFCEN has included probationary phase rules named RPP-2 and RPP-3. EDF and CNNC/NPIC have hence established a specific collaboration on environmentally assisted fatigue to contribute to validation and improvement of these rules in the RCC-M code. Part 1 of the paper states the context of the collaboration between EDF and CNNC/NPIC and the methods used by each side. Part 2 presents the satisfactory results of code comparison based on the AFCEN-provided benchmark case. As the third part, this paper presents the comparison based on an industrial case close to an HPR1000 nozzle under pressurized thermal shock (PTS) provided by CNNC/NPIC, where the RCC-M code is applied in a situation equivalent to the engineering practice. By following the methodology of the Part 2, EDF and CNNC/NPIC use respectively their proper tools code_aster POST_RCCM and FAC_NPIC to calculate the cumulative fatigue usage factor with or without considering the effect of EAF following the comparison between RCC-M RPP and NUREG/CR-6909 rev.1. The comparison focuses on the technical details of transient combination method and temporal discretization of transients. Analysis concerning pressurized thermal shock type transients is also discussed. Comparisons show some differences between the results of the two parts. Some could be attributed to the various calculation processes between EPRI Guidelines and RCC-M RPP-3. Minor differences could be attributed to engineering practices like thermal time stepping.

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Marie, S., Y. Kayser, B. Drubay, M. Ne´de´lec, C. Delaval, H. Deschanels e M. Sperandio. "Presentation of RCC-MR Code 2007 for High Temperature Reactor and ITER Projects: Improvement of the Leak-Before-Break Procedure and Related Defect Assessment Tools". In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77119.

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The fourth edition of the RCC-MR code was issued in French and English versions in October 2007 by AFCEN (Association Franc¸aise pour les re`gles de Conception et de Construction des Mate´riels des Chaudie`res Electro-nucle´aires). In the frame of this new edition, important changes have been made in the appendix A16 for the Leak-Before-Break (LBB) procedure and the related tools (defect assessment procedures and fracture mechanics parameter compendia). This paper presents the evolution of the appendix A16 from the 2002 edition of the RCC-MR code: - Defect size determination at penetration and after penetration in the LBB procedure has been modified. - Compendia for KI and reference stress have been improved and extended for cracked plates, pipes and elbows. - Combined mechanical and thermal loading interaction in the Fracture Mechanics parameters (J and C*) calculation has been revised. - A new procedure for the analysis of creep crack growth under cyclic thermal loading is proposed.

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Li, Jia, e Laurent De Baglion. "Environmentally Assisted Fatigue Screening Process Application". In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-84194.

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Abstract In the frame of extension of nuclear plant operation life or new nuclear reactor construction, environmentally assisted fatigue (EAF) assessment is required by many regulators to be considered for pressure boundary components. The methodology of EAF assessment, through EAF cumulative usage factor (CUFen) calculations, has been integrated in RPP n°3 (Rule in Probationary Phase) of French RCC-M code [2]. This methodology is applicable to sentinel locations of Class 1 components made of austenitic SS that have been identified in advance. In order to minimize final number of sentinel locations for considering EAF effects, EAF screening methods are presented in EPRI report [3], which allow to rank the CUFen values and give a list of sentinel locations that assume to cover other locations within each thermal zone. In particular, the EDF Screening method based on RCC-M code using Fenintegrated concept has been integrated in revision 1 of EPRI report. The EDF Screening method [5] was built for the fourth ten-year visit of the 900 MWe plants, for which stress reports were updated and contain detailed information of fatigue analyses. It is not applicable for locations without an explicit fatigue analysis or without any pair loads information. In this paper, a new screening method is proposed based on Fenintegrated concept and RCC-M code for austenitic SS Class 1 components and piping. Environmental fatigue factor (Fen) is estimated by a simple process for each location. The CUFen is determined using Fen and Fenintegrated. For locations without an explicit cumulative usage factor (CUF) calculation, transient combinations will be estimated according to the analytical method described in B3600 of RCC-M for piping. Finally, the sentinel locations identified will be compared to those selected in EPRI report.

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Shi, Changzheng, Hegao Wu e Kai Su. "Study on the Seismic Behavior of Trash Rack Concrete Frame of RCC Gravity Dam with the Reserved Groove Construction Method". In 2010 Asia-Pacific Power and Energy Engineering Conference. IEEE, 2010. http://dx.doi.org/10.1109/appeec.2010.5449227.

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Rapporti di organizzazioni sul tema "RCC FRAME"

Morton, A. Updates for the Back-to-Back Frame Benchmark in RFC 2544. RFC Editor, maggio 2021. http://dx.doi.org/10.17487/rfc9004.

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MECHANICAL PROPERTIES OF KINKED STEEL PLATES AND THEIR APPLICATIONS IN FRAME STRUCTURES. The Hong Kong Institute of Steel Construction, agosto 2022. http://dx.doi.org/10.18057/icass2020.p.314.

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To effectively improve the ability of frame structures to comprehensively defend against seismic collapse and progressive collapse, this paper proposes a novel configuration, kinked steel plate (KP). The mechanical properties of KP were studied through test and numerical simulation. It is found that when KP is in tension, the resistance that can provide in the small deformation stage is lower, but it can provide a resistance equivalent to that of ordinary straight steel plates after being straightened. When KP in compression, the resistance that can provide is very small and can be ignored. Then, the application of KP in steel frame and reinforced concrete (RC) frame structure was discussed. For the application of KP in steel frames, KP is combined with the reduced beam section (RBS) connection, which can obtain an innovative connection (RBS-KP) containing KP. For the application of KP in RC frame, KP is added to RC beams, and a new type of RC beam containing KP is proposed. The seismic and progressive collapse performances of the RBS-KP connection and the new type of RC beam were studied by numerical simulation. Results illustrate that the RBS-KP connection has comparable seismic performance and greater resistance against progressive collapse than the RBS connection, as is the new type of RC beam relative to the RC beam.

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LOAD TRANSFER MECHANISM OF STEEL GIRDER-RC PIER CONNECTION IN COMPOSITE RIGID-FRAME BRIDGE. The Hong Kong Institute of Steel Construction, agosto 2022. http://dx.doi.org/10.18057/icass2020.p.286.

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The composite rigid-frame bridge, where the steel girder and the reinforced concrete (RC) pier are rigidly connected, has a high bearing capacity and superior long-term performance. The steel girder-RC pier connection is the critical detail for the design of such a structural form. To this end, a detailed review of composite rigid-frame bridges in China and abroad was carried out to summarize various forms of connections and evaluate their applicability. A novel connection type was then proposed to improve the connective performance between steel plate girders and RC piers. Threedimensional finite element models were further developed to investigate the force transfer mechanism, accounting for the impact of concrete stress, shear force in the connectors, and stress of steel plates. The results indicated that the proposed connection was capable of transmitting external loads reliably, and its ultimate bearing capacity exceeded design loads. The shear force of perfobond connectors, the tension of reinforcement, and the bearing effect of the bottom flange provided the major force transmission path to resist the external load.

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SEISMIC RESPONSES OF RC BRACED FRAMES WITH BUCKLING RESTRAINED BRACES CONNECTED TO CORBELS. The Hong Kong Institute of Steel Construction, marzo 2020. http://dx.doi.org/10.18057/ijasc.2020.16.1.10.

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