Relevant bibliographies by topics / DISSIPATIVE BRACES

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'DISSIPATIVE BRACES'

Author: Grafiati
Published: 1 April 2023
Last updated: 26 July 2025

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Journal articles on the topic "DISSIPATIVE BRACES"

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Kari, Amir, Mehdi Ghassemieh, and Baitollah Badarloo. "Development and design of a new self-centering energy-dissipative brace for steel structures." Journal of Intelligent Material Systems and Structures 30, no. 6 (2019): 924–38. http://dx.doi.org/10.1177/1045389x19828502.

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Buckling-restrained braces are able to provide significant energy dissipation along with large ductile capacity through their excellent hysteretic behavior. However, due to their lack of recentering capability, buckling-restrained braced frames experience large residual drifts following a strong earthquake, leading to enormous repair costs. To overcome this shortcoming, super-elastic shape memory alloy braces with excellent recentering capacity have been introduced as a viable alternative to steel braces. Nevertheless, their energy dissipation capacity is usually low for seismic applications.
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Liu, Lu, and Bin Wu. "Self-Centering Buckling-Restrained Braces." Advanced Materials Research 639-640 (January 2013): 846–49. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.846.

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Buckling-Restrained Brace (BRB) consists of energy dissipative core and a strengthening tube to prevent buckling when subjected to compression. Under cyclic loading, BRB exhibits elastoplastic hysteretic behavior, which leads to certain amount of permanent displacement in the structure after medium to severe earthquake. Residual deformations can result in increased cost of repairing. An innovative BRB device called Self-centering Buckling-Restrained Braces (SC-BRB) is devised to control maximum and residual drift of steel moment frame buildings subjected earthquakes. The SC-BRB is composed of
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Ferraioli, Massimiliano, and Angelo Lavino. "A Displacement-Based Design Method for Seismic Retrofit of RC Buildings Using Dissipative Braces." Mathematical Problems in Engineering 2018 (December 27, 2018): 1–28. http://dx.doi.org/10.1155/2018/5364564.

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The paper proposes a displacement-based design method for seismic retrofit of RC buildings using hysteretic dissipative braces. At first, a fully multimodal procedure based on an adaptive version of the capacity spectrum method is applied to the 3D model of the damped braced structure. Then, the properties of an idealized bilinear model are defined using the seismic characteristics of the compound system thus accounting for the frame-damped brace interaction. Finally, an iterative procedure is developed to provide an optimal distribution of dampers. The proposed method overcomes the limitation
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Payandehjoo, Barash, Saeid Sabouri-Ghomi, and Parviz Ebadi. "Seismic Behavior of X-Shaped Drawer Bracing System (DBS) and X-Braced Frames with Heavy Central Core." Journal of Earthquake and Tsunami 10, no. 04 (2016): 1650004. http://dx.doi.org/10.1142/s1793431116500044.

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In this work, seismic performance of conventional X-braced frames is enhanced by using Drawer Bracing Systems (DBS). DBS is an innovative structure, which increases ductility and energy absorption capacity of the X-braces through elimination of the harmful effects of local and global buckling and by converting the induced axial forces inside diagonal arms to flexural moments. Two half-scale specimens are tested under cyclic loading and the seismic performance of an X-shaped DBS is compared to that of an X-braced frame. Both braced frames are designed for equal nominal base shears and have simi
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Xie, Qin, Zhen Zhou, Canjun Li, and Shaoping Meng. "Parametric Analysis and Direct Displacement-Based Design Method of Self-Centering Energy-Dissipative Steel-Braced Frames." International Journal of Structural Stability and Dynamics 17, no. 08 (2017): 1750087. http://dx.doi.org/10.1142/s0219455417500870.

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The self-centering energy-dissipative (SCED) brace is a novel bracing element that can substantially reduce the residual deformation and enhance the reparability of structures. In this paper, nonlinear dynamic analyses have been conducted on a 4- and a 12-story steel-braced frame with SCED braces to study the effect of four important design parameters on the seismic performance of the SCED frames and recommendations are given for selection of the parameters. The parameters considered include the response modification coefficient [Formula: see text], the stiffness ratio of the brace [Formula: s
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Bosco, M., A. Ghersi, E. M. Marino, and P. P. Rossi. "A Capacity Design Procedure for Columns of Steel Structures with Diagonals Braces." Open Construction and Building Technology Journal 8, no. 1 (2014): 196–207. http://dx.doi.org/10.2174/1874836801408010196.

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According to modern seismic codes, in concentrically braced frames the seismic input energy should be dissipated by means of the hysteretic behaviour of braces while all the other members (i.e. beams and columns) have to remain elastic. Accordingly, the design internal forces of braces are determined in these codes by elastic analysis of the structure subjected to seismic forces obtained by the design spectrum. The internal forces of the non-dissipative members, instead, are calculated by means of specified rules for the application of capacity design principles. According to some recent numer
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Costanzo, Silvia, and Landolfo Raffaele. "Concentrically Braced Frames: European vs. North American Seismic Design Provisions." Open Civil Engineering Journal 11, no. 1 (2017): 453–63. http://dx.doi.org/10.2174/1874149501711010453.

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A critical review of seismic design provisions for concentrically braced frames (CBFs) in both European and North American (i.e. US and Canadian) codes is presented in this paper. Indeed, even though those codes are based on capacity design philosophy, different requirements and different approaches are used to guarantee the hierarchy of resistances between dissipative and non-dissipative elements, thus leading different overall seismic performance. In detail, the main issues critically discussed are (i) the ductility classes and the correlated force-reduction factors; (ii) the structural anal
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Di Cesare, Antonio, Felice Carlo Ponzo, Nicla Lamarucciola, and Domenico Nigro. "Experimental seismic response of a resilient 3-storey post-tensioned timber framed building with dissipative braces." Bulletin of Earthquake Engineering 18, no. 15 (2020): 6825–48. http://dx.doi.org/10.1007/s10518-020-00969-y.

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Abstract With the increased number of multi-storey buildings in seismic areas, research efforts have been focused on developing earthquake resilient systems, such as low-damage techniques based on the combination of post-tensioning and dissipating devices. This paper describes the experimental study performed on a 3-storey post-tensioned timber framed (Pres-Lam) building equipped with energy dissipating systems. The testing project consisted of three phases adopting different configurations of the experimental model: (1) post-tensioning to beam-column joints only, (2) post-tensioning and dissi
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Barbagallo, Francesca, Melina Bosco, Marco Caragliano, Edoardo M. Marino, and Pier Paolo Rossi. "An Alternative Approach for the Design of Chevron-Braced Frames." Applied Sciences 11, no. 22 (2021): 11014. http://dx.doi.org/10.3390/app112211014.

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The design of steel chevron-braced frames as per Eurocode 8 is based on the idea that only the braces should buckle and yield during ground motions, while other members should remain elastic. The elastic design of the braced frames is also allowed. However, in both cases, the seismic performance of the frame may be compromised because of premature yielding/buckling of columns. This paper proposes an alternative design procedure that promotes yielding of beams in addition to yielding of braces. This mitigates the vertical unbalanced force transmitted by compressive and tensile braces to the bea
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Xiao, Yi, Marc O. Eberhard, Ying Zhou, and John F. Stanton. "Proportioning of self‐centering energy dissipative braces." Earthquake Engineering & Structural Dynamics 50, no. 10 (2021): 2613–33. http://dx.doi.org/10.1002/eqe.3463.

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Dissertations / Theses on the topic "DISSIPATIVE BRACES"

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MIANI, MARCO. "INNOVATIVE SEISMIC PROTECTION OF EXISTING BUILDINGS BY MEANS OF DISSIPATIVE AND SHAPE MEMORY ALLOY BRACES." Doctoral thesis, Università degli Studi di Trieste, 2021. http://hdl.handle.net/11368/2998141.

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The characterization, conservation and securing of heritage buildings has become a very important issue in many countries, as it is in Italy, where a great number of existing constructions, also of historical-artistic importance, are seismically vulnerable. Knowledge of the history, and geometric and mechanical characteristics are fundamental aspects to assess the state of a construction and to analyse possible interventions. In the first part of this thesis, the techniques of survey and mechanical characterization of the materials are analysed, and the costs of carrying out the materials’ tes
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COSTOLI, IACOPO. "Criteri di progetto e casi applicativi di miglioramento sismico di edifici con struttura a telaio mediante controventi dissipativi includenti smorzatori fluido-viscosi." Doctoral thesis, Università degli Studi di Trieste, 2022. http://hdl.handle.net/11368/3032058.

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This dissertation was aimed at revisiting and integrating energy-based design criteria of dissipative bracing systems incorporating fluid-viscous spring-dampers as protective devices, for the seismic retrofit of frame structures. This objective was pursued by means of two main contributions. The first one concerned the introduction of an additional pre-sizing criterion of these systems aimed at guaranteeing a prompt activation of the spring-dampers starting from the early stages of the seismic response of the buildings where they are installed. The second one consisted in the evaluation of the
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Voller, Gordon Paul. "Analysis of heat dissipation from railway and automotive friction brakes." Thesis, Brunel University, 2003. http://bura.brunel.ac.uk/handle/2438/5558.

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The thesis presents research into the understanding and improvement of heat dissipation from friction brakes. The investigations involved two brake types, considered to be the most thermally loaded and therefore most challenging; axle mounted high speed railway and commercial vehicle disc brakes. All three modes of heat transfer (conduction, convection and radiation) and airflow characteristics have been analysed experimentally and theoretically in order to increase the understanding of heat dissipation. Despite the very practical aspects of this research, a 'generic heat transfer approach' wa
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Jeffers, Brandon. "Parametric Study of Self-Centering Concentrically-Braced Frames with Friction-Based Energy Dissipation." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1335901155.

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Reed, Matthew Robert. "Development of an Improved Dissipative Passive Haptic Display." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/5284.

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This project focuses on the design and modeling of a two degree-of-freedom dissipative passive haptic display. Haptic displays are man-machine interfaces that transmit forces to the human operator. A dissipative passive haptic display is one that may only remove energy from the system using actuators such as brakes and dampers, thus ensuring the safety of the human operator. These devices may be used to implement virtual constraints such as desired paths and obstacles. Traditional friction brakes have previously been used as dissipative and coupling elements in a two degree-of-freedom para
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Fiocchi, Alice. "Inserimento di controventi dissipativi in acciaio in un capannone in calcestruzzo armato prefabbricato a due piani." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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In questa tesi si propone il miglioramento sismico di un capannone in calcestruzzo armato prefabbricato a due piani a pilastri isostatici mediante l'inserimento di controventi dissipativi in acciaio con forma speciale (Crescent-Shaped-Braces). PREMESSA In primo luogo si dimostra come la struttura studiata soddisfi già i requisiti del DM 2008, sia allo SLD (spostamenti d’ interpiano) che allo SLV (elementi strutturali verificati). OBIETTIVO Migliorare le caratteristiche prestazionali di un edificio in calcestruzzo armato prefabbricato a due piani, sottoposto ad azione sismica.
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Barbieri, Laura. "Studio del comportamento sismico di edifici in CLT con connessioni dissipative del tipo X-bracket." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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La risposta sismica degli edifici CLT è analizzata con lo scopo di valutare la correlazione tra la capacità dissipativa, rappresentata dal fattore di comportamento q, e la metodologia di costruzione, ovvero le proprietà geometriche dell'edificio ed il comportamento delle connessioni adottate. Questo studio presenta un modello numerico in grado di simulare la risposta dinamica di una parete a tre piani costituita da pannelli portanti a strati incrociati, nella quale sono state utilizzate connessioni innovative, rappresentate da staffe ad alta capacità dissipativa caratterizzate da una partico
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Tonini, Chiara. "Studio di un collegamento trave-pilastro di tipo semirigido dissipativo." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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L'elaborato di tesi tratta lo studio di un collegamento trave-pilastro di tipo semirigido dissipativo. L’idea progettuale alla base di tale studio è quella di posizionare nel nodo trave-pilastro di un telaio in acciaio una coppia di dispositivi metallici che durante il sisma si snervino prima dei pilastri. In tal caso infatti si concentrerebbe parte della dissipazione energetica in tali dispositivi ritardando la formazione delle cerniere plastiche alla base dei pilastri e preservando quindi questi ultimi dalla plasticizzazione. Lo studio è stato effettuato considerando come dispositivi metalli
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PHAM, Chi-Tuong. "Stabilité et dynamique d'écoulements de fluides parfaits barotropes autour d'un obstacle en présence de dispersion." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2003. http://tel.archives-ouvertes.fr/tel-00006825.

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Cette thèse regroupe une série de travaux ayant tous trait à des systèmes hamiltoniens non linéaires spatialement étendus présentant une bifurcation nœud-col. Elle est constituée de deux parties. Nous étudions dans une première partie la transition à la dissipation de systèmes unidimensionnels soumis à un forçage local et régis par des équations de type sine-Gordon ou Schrödinger non linéaire (ESNL). Nous en calculons analytiquement les solutions stationnaires et caractérisons le comportement dynamique au voisinage de celles-ci près de la bifurcation. Lorsque la relation de dispersion des syst
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Simon, Madrenas Enric. "Predicción de la fatiga de disipadores de energía elastoplásticos para estructuras sismorresistentes." Doctoral thesis, Universitat de Girona, 2021. http://hdl.handle.net/10803/673931.

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Elastoplastic energy dissipators are used in earthquake-resistant design in order to dissipate a substantial part of the seismic energy acting on a building. They are elements that are not part of the load-bearing structure and, therefore, are easily replaceable in case of damage. Their behaviour is usually stable and their degree of degradation difficult to appreciate visually. To assess their degree of degradation, damage indices are used which estimate their remaining dissipative capacity through the combination of a number of variables such as, for example, the number of cycles sustained a
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Book chapters on the topic "DISSIPATIVE BRACES"

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Elettore, Elena, Antonella Bianca Francavilla, Fabio Freddi, Massimo Latour, and Gianvittorio Rizzano. "Preliminary Numerical Study of a Steel Concentrically Braced Frame Equipped with Dissipative Braces and Self-centring Column Bases." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-62888-7_37.

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Ferraioli, Massimiliano, Osvaldo Pecorari, and Angela Diana. "Dissipative Exoskeletons Based on Self-centering SMA Braces for Seismic Retrofit of RC Buildings." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87312-6_32.

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Bourahla, Nouredine, and Abdellatif Hannachi. "GA-Based Optimisation of Dissipative Knee Braced Steel Frames." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-71048-3_12.

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Ma, Cuiling. "Credibility of Estimating the Hysteretic Energy Demands of Concentrically Braced Steel Frames." In Advances in Frontier Research on Engineering Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_16.

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AbstractEarthquake happens frequently in China, and seismic design is of high importance for buildings. The energy-based seismic design method with clear conception has attracted attention of more and more researchers. One of the initial questions is how to determine the energy requirement. In this paper, the finite element software is used to analyze the time history of the concentrically braced steel frames designed according to the current codes and standards. The analysis shows that the cumulative demand obtained by time history analysis is similar to the estimated value. The hysteretic en
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Anto, Anjanet, and Asha Joseph. "Seismic Performance Evaluation of Seesaw Braced Energy Dissipation System." In Lecture Notes in Civil Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80312-4_27.

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Yin, Zhanzhong, Xiuli Wang, and Xiaodong Li. "Hysteretic Response and Energy Dissipation of Double-Tube Buckling Restrained Braces with Contact Ring." In Computational Structural Engineering. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2822-8_20.

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Zhang, Luyang, Jitao Yao, and Yuting Tong. "Seismic Behavior of Steel-Polypropylene Hybrid Fiber Reinforced Concrete Shear Wall." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4090-1_39.

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AbstractThis study investigated the loading mechanism of SPFRC shear walls by conducting low-cycle repeated loading tests on two steel-polypropylene hybrid fiber reinforced concrete (SPFRC) shear walls and one reinforced concrete (RC) shear wall. Furthermore, this study analyzed the impact of fiber content and axial compression ratio on the failure mode, shear carrying capacity, ductility, and energy dissipation capacity of the shear walls. The test results show that hybrid fibers effectively restrain the development of cracks in shear walls, and improve the shear carrying capacity, deformatio
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Xiao, Mei Ling, Liao Yuan Ye, Sheng Miao, and Ben Yu Liu. "Damage and Crack Analysis for Reinforced Concrete Energy Dissipation Braced Frame (EDBF) under Low Cyclic Loads." In Fracture and Damage Mechanics V. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-413-8.611.

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"A comparative analysis of performances of high strength steel dual frames of buckling restrained braces vs. dissipative shear walls." In Behaviour of Steel Structures in Seismic Areas. CRC Press, 2009. http://dx.doi.org/10.1201/9780203861592-25.

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Dinu, F., D. Dubina, and C. Neagu. "A comparative analysis of performances of high strength steel dual frames of buckling restrained braces vs. dissipative shear walls." In Behaviour of Steel Structures in Seismic Areas. CRC Press, 2009. http://dx.doi.org/10.1201/9780203861592.ch21.

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Conference papers on the topic "DISSIPATIVE BRACES"

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Tagawa, Hiroshi, Sanako Moriyama, and Xingchen Chen. "Energy Dissipation System with Lever Arms Using Steel Slit Damper for Vibration Control of Structures." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.3290.

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<p>This study proposes a new energy dissipation system in which a steel slit damper is applied to an energy dissipation devise using lever arms as the displacement amplification mechanism. It is characterized by utilization of small lever arms. The brace members in the proposed system do not buckle because the brace can maintain tensile axial force by introducing initial tension, which allows the use of small diameter rods. Cyclic loading test results are presented to reveal that the proposed energy dissipation system could perform adequately. The experimental results demonstrated that a
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Quiaem, Megan Angela, Rodolfo Mendoza Jr., and Demin Feng. "Enhancing the seismic performance of offshore marine platforms using passive devices." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.2267.

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<p>Nonlinear dynamic analysis was used to evaluate the effectiveness of energy dissipation devices in mitigating lateral displacements and enhancing the overall seismic performance of offshore platforms. The energy dissipation capability of the buckling restrained braces (BRB) and viscous fluid dampers (VFD) were compared at different installation angles, namely 30, 45, and 60 degrees, to determine the most efficient orientation. Two platform models, each installed with a different passive device, were subject to seismic inputs from seven selected historical ground motion records, and th
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De Domenico, Dario, Luca Facconi, Emanuele Gandelli, Alberto Gioitta, Paolo Longo, and Natale Maugeri. "SEISMIC PROTECTION OF SUBSTANDARD RC FRAMES THROUGH SELF-CENTERING DISSIPATIVE BRACES." In 9th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. Institute of Structural Analysis and Antiseismic Research National Technical University of Athens, 2023. http://dx.doi.org/10.7712/120123.10382.20472.

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Bergami, A.-V., and C. Nuti. "DESIGN OF DISSIPATIVE BRACES FOR AN EXISTING STRATEGIC BUILDING WITH A PUSHOVER BASED PROCEDURE." In 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2014. http://dx.doi.org/10.7712/120113.4677.c1143.

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Mazza, Fabio, Alfonso Vulcano, Adolfo Santini, and Nicola Moraci. "Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part I: Theoretical formulation." In 2008 SEISMIC ENGINEERING CONFERENCE: Commemorating the 1908 Messina and Reggio Calabria Earthquake. AIP, 2008. http://dx.doi.org/10.1063/1.2963763.

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Mazza, Fabio, Alfonso Vulcano, Adolfo Santini, and Nicola Moraci. "Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part II: Numerical Results." In 2008 SEISMIC ENGINEERING CONFERENCE: Commemorating the 1908 Messina and Reggio Calabria Earthquake. AIP, 2008. http://dx.doi.org/10.1063/1.2963764.

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Ceccolini, Nicola, Alessandro Zona, Andrea Dall’Asta, and Gaetano Della Corte. "Influence of design criteria on the seismic response of single-storey steel buildings." In IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures. International Association for Bridge and Structural Engineering (IABSE), 2022. http://dx.doi.org/10.2749/prague.2022.0624.

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<p>Structural design in seismic areas could be based on either dissipative or non-dissipative concepts, as for example allowed in European and Italian codes. In the first case, capacity design is the basis of structural dimensioning; both strength and ductility verifications are required. In the second case, structural elements are designed to remain in the elastic field under the assigned design seismic input; ductility verifications are not enforced. In steel structures, these two design approaches might lead to very different seismic structural performances, depending on the role that
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Terenzi, Gloria, Iacopo Costoli, and Stefano Sorace. "Redesign of a dissipative bracing-based retrofit intervention for an earthquake damaged school building." In IABSE Congress, Christchurch 2021: Resilient technologies for sustainable infrastructure. International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/christchurch.2021.0605.

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<p>A school building with reinforced concrete structure, seismically retrofitted in 2013 and damaged by the 2016 Central Italy earthquake, is examined in this paper. A time-history assessment analysis is initially carried out in pre-rehabilitated conditions by simulating also the presence of the clay brick masonry infill perimeter walls and partitions in the finite element model of the structure. Based on the results of this analysis, a different retrofit solution is proposed, consisting in the incorporation of dissipative braces equipped with pressurized fluid viscous dampers. The verif
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Grubišić, Marin, Benjamin Pervan, and Ivica Guljaš. "PERFORMANCE EVALUATION OF CHEVRON BRACED FRAME AND TADAS DAMPER ON SEISMIC RESPONSE OF STEEL MRFs." In 2nd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2023. http://dx.doi.org/10.5592/co/2crocee.2023.17.

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The aim of this study is to evaluate the feasibility of seismically strengthening existing steel frames. Through computational analysis of the existing bare frame, two methods of seismic strengthening are proposed. The expected behaviour of each of the three tested steel frames was determined through an initial iterative calculation using numerical models. The dimensions for the two types of strengthening were established based on numerical analysis of the bare frame: one utilizing a specialized inverted V-bracing (Chevron) system, and the other utilizing a dissipative TADAS connection. Follow
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Thibault, Pierre, Charles-Darwin Annan, and Pampa Dey. "Investigation of hybrid multi-core buckling-restrained brace components." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1415.

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<p>Contemporary seismic-resistant design of steel braced frames is based on dissipating seismic energy through significant inelastic axial deformation in brace components. Buckling-restrained braced (BRB) frames are a type of concentrically braced frame (CBF) characterised by braces that yield both in tension and in compression. These braces therefore exhibit superior cyclic performance compared with traditional CBFs. However, buckling-restrained braces commonly display a low post- yield stiffness, causing substantial interstory drifts and large residual drifts after seismic events. More
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Reports on the topic "DISSIPATIVE BRACES"

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FEASIBILITY STUDY OF VISCOELASTIC HYBRID SELF-CENTERING BRACE (VSCB) FOR SEISMIC-RESISTANT STEEL FRAMES. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/icass2020.p.113.

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The practicability of existing self-centering braces is largely limited by their small deformability and insufficient energy dissipation. This paper presents a new type of velocity-dependent self-centering brace called viscoelastic self-centering brace (VSCB), which employs viscoelastic dampers (VED) and SMA cables as the kernel elements. The SMA cables can offer large recoverable deformation, and the viscoelastic dampers, which are velocity-dependent, provide considerable energy dissipation under high-frequency loading excitations but tend to have less detrimental influence on the self-center
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TEST ON RESILIENCE CAPACITY OF SELF-CENTERING BUCKLING RESTRAINED BRACE WITH DISC SPRINGS. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/icass2020.p.156.

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The properly constructed buckling restrained braces (BRBs) usually have good ductility and energy dissipation capacity and therefore can be used in braced steel frames. However, large residual plastic deformation of the BRBs deteriorates their resilience capacity and hence results in large residual deformation of the buckling restrained braced steel frames (BRBFs) under large drifts. To reduce the residual deformation of BRB while keeping good ductility and energy dissipation capacity, a new self-centering buckling restrained brace (SCBRB), letting both BRB part and self-centering part work in
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THE SEISMIC PERFORMANCE OF DOUBLE TUBE BUCKLING RESTRAINED BRACE WITH CAST STEEL CONNECTORS. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/ijasc.2022.18.1.2.

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The special concentrically braced frame (SCBF) is an aseismic structure, but its bracing system exhibits brittle failure and premature buckling connected with the weld fracture of the gusset plate and the post-buckling of the braces; thus, maximizing the role of energy dissipation is difficult. Here, this paper proposes a system of double-tube buckling-restrained brace with cast steel connectors for steel SCBFs. The large inelastic deformation of the bracing system is mainly concentrated in the ductile cast connectors under the earthquake, and the degree of buckling and post-buckling of braces
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EXPERIMENTAL BEHAVIOR AND DESIGN OF RECTANGULAR CONCRETE-FILLED TUBULAR BUCKLING-RESTRAINED BRACES. The Hong Kong Institute of Steel Construction, 2021. http://dx.doi.org/10.18057/ijasc.2021.17.4.5.

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This paper proposes a new design method for concrete-filled tubular buckling-restrained braces (CFT-BRBs) by incorporating the confinement effect on pre-buckling rigidity. A series of experiments are performed to investigate the effects of concrete strength and sectional dimension on the initial stiffness, ultimate strength, and energy dissipation behaviors. Experimental results indicate that the confined concrete plays an important role in the energy dissipating capacity of CFT-BRBs. On the other hand, the sectional dimensions of the steel tube and core are influential factors governing the u
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AN EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF STEEL COMPOSITE BEAM-COLUMN RIGID JOINT AND BUCKLING RESTRAINED KNEE-BRACED JOINT. The Hong Kong Institute of Steel Construction, 2023. http://dx.doi.org/10.18057/ijasc.2023.19.4.6.

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This paper evaluates the seismic performance of conventional steel composite beam-column rigid joints, and a novel buckling restrained knee-braced joint (BRKBJ), considering the impact of the floor slab. A series of quasi-static comparative tests were conducted to analyze the failure mode, load-bearing capacity, hysteresis performance, and ductility of both types of joints. Our findings revealed that the hysteretic curve of the BRKBJ exhibits a robust and shuttle-like shape, suggesting an adequate energy dissipation performance. However, its yield displacement is relatively small. Conversely,
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EXPERIMENTAL STUDY ON MECHANICAL PERFORMANCE OF BUCKLING-RESTRAINED BRACE ON FRAMES WITH HIGH-STRENGTH CONCRETE-FILLED SQUARE STEEL TUBE COLUMNS. The Hong Kong Institute of Steel Construction, 2023. http://dx.doi.org/10.18057/ijasc.2023.19.3.9.

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Using buckling-restrained braces (BRBs) in frames with high-strength concrete-filled square steel tube columns(HSCFSSTC) can solve issues such as brittle failure and low lateral stiffness. To investigate the mechanical performance of buckling-restrained brace frames(BRBFs), an experiment study was conducted. The investigation involved the design and analysis of a frame system composed of BRBs, HSCFSSTC and H-shaped steel beams. Sub-structures at a 1/3 scale with two types of connections, welded and pin connections, were subjected to pseudo-static tests. The influence of BRBF connection types o
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ANALYSIS OF THE SEISMIC BEHAVIOR OF INNOVATIVE ALUMINIUM ALLOY ENERGY DISSIPATION BRACES. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/icass2020.p.341.

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In this study the employment of aluminium alloy buckling-restrained braces (ALBRBs) as energy dissipation dampers is attempted for seismic performance upgrading of single layer dome and the effectiveness of ALBRBs to protect structures against strong earthquakes is numerically studied. With buckling restrained, ALBRB members can provide stable energy dissipation capacity and thus damage of the whole structure under major earthquakes can be mitigated. ALBRBs are then placed at certain locations on the example single layer dome to replace some normal members with two schemes, and the effect of t
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NONLINEAR FINITE ELEMENT ANALYSIS OF ALL-STEEL BUCKLING RESTRAINED BRACES. The Hong Kong Institute of Steel Construction, 2023. http://dx.doi.org/10.18057/ijasc.2023.19.3.5.

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Buckling restrained braces are gaining popularity in earthquake-resistant designs these days. These braces give stable hysteretic behaviour with a non-buckling steel core encased in a steel tube, that is filled with concrete or mortar. However, in the last few years, researchers have observed that these braces do not need any filler material and can be all-steel. This study aims to carry out a parametric study on All-Steel Buckling Restrained Braces (ASBRBs) by varying the restraining mechanism, the amount of gap between the core and the restrainer, and loading protocols. This paper presents a
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ANALYSIS OF THE DYNAMIC MECHANISM OF SQUARE TUBULAR T-JOINTS WITH CHORD FLANGES SUBJECTED TO IMPACT LOADING. The Hong Kong Institute of Steel Construction, 2024. http://dx.doi.org/10.18057/ijasc.2024.20.1.3.

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This study examines the dynamic mechanical properties of square tubular T-joints with impact loads acting on the chord surface in the joint area. The study first verified the failure modes and behaviors of the specimens under a brace axial force and impact, respectively, where the simulation results demonstrated good agreement with the experimental results. A total of 138 square hollow section tubular T-joint finite element models were divided into T1, T2, and T3 groups based on different tube diameter ratios. The failure modes, displacement-time history curves, and impact force-time history c
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RESEARCH ON DATA-DRIVEN INTELLIGENT DESIGN METHOD FOR ENERGY DISSIPATOR OF FLEXIBLE PROTECTION SYSTEMS. The Hong Kong Institute of Steel Construction, 2024. https://doi.org/10.18057/ijasc.2024.20.4.6.

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The brake ring, an essential buffer and energy dissipator within flexible protection systems for mitigating dynamic impacts from rockfall collapses, presents notable design challenges due to its significant deformation and strain characteristics. This study introduces a highly efficient and precise neural network model tailored for the design of brake rings, utilizing BP neural networks in conjunction with Particle Swarm Optimization (PSO) algorithms. The paper studies the key geometric parameters, including ring diameter, tube diameter, wall thickness, and aluminum sleeve length, with perform
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