Relevant bibliographies by topics / Alternative Bracing System

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Academic literature on the topic 'Alternative Bracing System'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Alternative Bracing System"

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Pandey, Mr Suryakant. "Seismic Analysis of L-Shape Multi-Storey RCC Building with X-Bracing in Different Effective Location and Pattern." International Journal for Research in Applied Science and Engineering Technology 9, no. 8 (August 31, 2021): 1150–70. http://dx.doi.org/10.22214/ijraset.2021.37530.

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Abstract: In this day and age of urbanization, there is a strong need for a large-scale high-rise apartment building in every city but high-rise construction systems are extremely difficult to construct in any seismic region due to the intense and disruptive nature of seismic forces. Seismic forces have the highest risk of causing the most harm to high-rise buildings. To meet this need, the Civil Engineering industry is constantly developing new groundbreaking techniques. To solve this problem RCC or steel bracings are provided in high-rise buildings which help to the low down the effect of seismic and wind forces. The main objective of this paper is to locate an effective position and pattern of the RCC X-bracing system in the L- shape multi-storey building which is subjected to seismic forces. According to a previous reference paper, X-bracing produces better results than other bracing systems. Analysis the seven types of frame models are taken – (1) Normal L-shape building without bracing, (2) Xbracing are provided at the face of L-shape building, (3) X-bracing are provided alternative pattern at the face of L-shape building from bottom to top floor, (4) X- bracing are provided zig-zag pattern at the face of L-shape building, (5) X-bracing are provided at the corner of L-shape building, (6) X-bracing are provided alternative pattern at the corner of L-shape building from bottom to the top floor, (7) X-bracing are provided zig-zag pattern at the corner of L-shape building. Developed and evaluated by response spectrum analysis method (Linear dynamic analysis) as per IS 1893-2000 using STAAD PRO V8i. In the present work G+12 storey, the L-shape frame structure is analyzed by using X-bracing. It is analyzed and the results of the Following Parameters are taken - (1) Peak storey shear, (2) Base shear, (3) Nodal displacement, (4) Maximum bending moment, (5) Total quantity of steel in the whole structure, (6) Total volume of concrete in the whole structure are evaluated and compared. Keywords: RCC Bracing, Seismic Behavior, Seismic Analysis, Peak Storey Shear, Base shear, Nodal Displacements, Maximum Bending Moment, The Total Quantity of Steel, The Total Volume of Concrete
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Bishay-Girges, Nagui William. "A Study to use an Alternative System of Wall Bracing in Industrial Buildings." International Journal of Civil Engineering 5, no. 9 (September 25, 2018): 1–7. http://dx.doi.org/10.14445/23488352/ijce-v5i9p101.

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Roostayi, Mohammad Mohsen, Hossein Bagheri, Saeid Talebian Moghaddam, Kavous Firooznia, Mohammad Razi, Mostafa Hosseini, and Madjid Shakiba. "The effects of vacuumic bracing system on the patellofemoral articulation in patients with patellofemoral pain syndrome." Complementary Therapies in Clinical Practice 15, no. 1 (February 2009): 29–34. http://dx.doi.org/10.1016/j.ctcp.2008.09.008.

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Kim, Dong Keon, and Jong Wan Hu. "Bracing Systems for Seismic and Wind Performance of Tall Buildings." Advanced Materials Research 650 (January 2013): 667–72. http://dx.doi.org/10.4028/www.scientific.net/amr.650.667.

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Occurrence of frequency of earthquakes around the world has been increased including Sendai earthquake in Japan and magnitude of earthquake has also increased. Recently, many tall buildings using local seismic codes can be exposed to the risk of an earthquake and wind. Also, some buildings, which was planned to be built, were foundered as a result of lack of finance. Therefore, for tall buildings, structural safety such as earthquake and wind resistant performance, and financing issue are very important to progress the huge project. So we need to find another optimum alternative other than damping devices and base isolation system. In this study, four types of test specimens are used, which are fifty-story base tall building, tall building that was reinforced with diagonal brace, x-brace, and Chevron brace. And all of these cases, are subjected to the seismic load and wind load, finally analyzed and compared for seismic and wind performances.
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Tena-Colunga, Arturo, Enrique Del Valle, and Dalila Pérez-Moreno. "Issues on the Seismic Retrofit of a Building near Resonant Response and Structural Pounding." Earthquake Spectra 12, no. 3 (August 1996): 567–97. http://dx.doi.org/10.1193/1.1585897.

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Paper presents an analytical study on the possible application of commonly used retrofit schemes for an existing nine-story apartment building in Mexico City. The building, located in Mexico City's lake-bed region, was originally conceived as a RC waffle-flat slab structural system and was built in the late sixties. The building suffered important structural damage during the March 14, 1979 Petatlán Earthquake, primarily caused by structural pounding with neighboring structures due to its flexibility and resonant response with the ground. The building was retrofitted shortly after the Petatlán Earthquake with steel bracing in the direction of pounding. The retrofitted building survived the September 19, 1985 Michoacán Earthquake with light structural damage. Some evidence of pounding with one neighboring structure was again observed. Because of the chronic pounding problems with adjacent structures, which are separated eight to fifteen cm from the apartment building, it is felt that an additional upgrade of the structure may be needed for the safety of the building if a strong earthquake similar to the 1985 Michoacán Earthquake may strike Mexico City soon again. Different retrofit schemes were studied, which can be grouped as follows: a) weight reduction, b) column and waffle-slab jacketing, c) addition of energy dissipation devices, d) removal of top floors, e) replacement of diagonal bracing with newer bracing and, f) a combination of previous solutions. The effectiveness of the studied retrofit schemes is discussed by comparing their dynamic structural response with respect to the response of the actual retrofitted structure using nonlinear dynamic analyses for a postulated Ms=8.1 earthquake, as well as construction process, property value, and building use considerations. It is concluded that many aspects need to be evaluated in a seismic retrofit plan for a given building structure and often, the best alternative from the structural viewpoint may not be the best alternative overall.
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Benita, Diva Rahma, Erma Desmaliana, and Amatulhay Pribadi. "Analisis Perbandingan Kinerja Struktur Baja SRBKK Tipe Inverted-V pada Gedung Bertingkat 12, 16, dan 20 Lantai. (Hal. 65-74)." RekaRacana: Jurnal Teknil Sipil 5, no. 4 (December 2, 2019): 65. http://dx.doi.org/10.26760/rekaracana.v5i4.65.

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ABSTRAK Konstruksi baja merupakan suatu alternatif yang dapat digunakan dalam pembangunan gedung tinggi. Salah satu cara untuk memperbesar kekakuan suatu gedung dengan memasang bresing. Pada kasus ini sistem struktur baja yang digunakan yakni Sistem Rangka Bresing Konsentrik Khusus menggunakan bresing tipe Inverted-V. Dalam tugas akhir ini dilakukan perencanaan struktur baja bertingkat 12, 16 dan 20 lantai yang dimana nantinya juga dilakukan evaluasi kinerja struktur bangunan menggunakan analisis pushover untuk menentukan struktur bangunan yang paling efektif dalam perencanaan struktur menggunakan bresing Inverted-V. Dalam tugas akhir ini, didapat level kinerja struktur pada struktur baja bertingkat 12, 16 dan 20 lantai berada pada kinerja Immediate Occupancy (IO). Dari hasil-hasil analisis yang diperoleh dapat disimpulkan bahwa struktur baja bertingkat 12 lantai menggunakan bresing konsentrik tipe Inverted-V memiliki perioda struktur yang paling kecil dan berat struktur yang lebih kecil dibandingkan sistem rangka bresing struktur lainnya. Kata kunci: struktur baja, pushover, kinerja struktur ABSTRACT Steel construction is an alternative that can be used in the construction of tall buildings. One way to increase the rigidity of a building by installing the bracing. In this case the steel structure system that will be used is the Steel Special Concentrically using Inverted-V type bracing. In this thesis, steel structure planning of 12, 16 and 20-storey will be carried out, which will also evaluate the performance of the building structure using pushover analysis to determine the most effective structure in the structure planning using Inverted-V bracing. In this thesis, it obtained the level structural performance in steel structure 12, 16 and 20-storey floors are in the performance of Immediate Occupancy (IO). From the result of the analysis that was obtained, it can be concluded that the 12-storey steel structure steel structure using concentrically Inverted V-braced frames has the smallest structural period and smaller structural weights compared to other structural bracing systems. Keywords: steel structure, pushover, structure performance
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FitzGerald, T. F., Thalia Anagnos, Mary Goodson, and Theodore Zsutty. "Slotted Bolted Connections in Aseismic Design for Concentrically Braced Connections." Earthquake Spectra 5, no. 2 (May 1989): 383–91. http://dx.doi.org/10.1193/1.1585528.

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The use of concentrically braced steel frames to satisfy lateral force requirements is a common design practice in regions of strong seismicity. They provide a very efficient means of fulfilling the dual objectives of earthquake resistant design, that is, damage control and collapse prevention. While tensile yielding and inelastic buckling of bracing elements provide the basic energy absorbing mechanism, there are inherent problems with member behavior under multiple cycles of inelastic deformations. Inelastic energy dissapation, however, may also be provided by friction resistance in slotted bolted connections, thus eliminating the need for inelastic member buckling. Limited laboratory tests indicate that this concept may be a viable alternative for use as a lateral force resisting system for both new construction and the seismic upgrading of existing structures.
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Chung, Chloe L., Derek M. Kelly, Jeffery R. Sawyer, Jack R. Steele, Terry S. Tate, Cody K. Bateman, and Denis J. DiAngelo. "Mechanical Testing of a Novel Fastening Device to Improve Scoliosis Bracing Biomechanics for Treating Adolescent Idiopathic Scoliosis." Applied Bionics and Biomechanics 2018 (August 12, 2018): 1–10. http://dx.doi.org/10.1155/2018/7813960.

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Velcro fastening straps are commonly used to secure a scoliosis brace around the upper body and apply corrective forces to the spine. However, strap loosening and tension loss have been reported that reduce spinal correction and treatment efficacy. A novel fastening device, or controlled tension unit (CTU), was designed to overcome these limitations. A scoliosis analog model (SAM) was used to biomechanically compare the CTU fasteners and posterior Velcro straps on a conventional brace (CB) as well as on a modified brace (MB) that included a dynamic cantilever apical pad section. Brace configurations tested were (1) CB with posterior Velcro straps, (2) CB with posterior CTU fasteners, (3) MB with posterior Velcro straps, and (4) MB with posterior CTU fasteners. MB configurations were tested with 0 N, 35.6 N, and 71.2 N CTU fasteners applied across the apical pad flap. Three-dimensional forces and moments were measured at both ends of the SAM. The CTU fasteners provided the same corrective spinal loads as Velcro straps when tensioned to the same level on the CB configuration and can be used as an alternative fastening system. Dynamically loading the apical flap increased the distractive forces applied to the spine without affecting tension in the fastening straps.
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Kam, Weng Yuen, Richard Built, Brandt Saxey, and Jerod Johnson. "Buckling-Restrained Braces (BRB) Seismic Design - A Consulting Engineer’s Consideration." Key Engineering Materials 763 (February 2018): 932–40. http://dx.doi.org/10.4028/www.scientific.net/kem.763.932.

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There is no standard for the design of Buckling-Restrained Braces (BRBs) frames in New Zealand. Consequently, a consulting engineer would need to consider a range of overseas design standards and latest research findings and incorporate into a New Zealand code-compliance framework. This “Alternative Solution” pathway to satisfy the New Zealand Building Code means peer review and agreement with peer review is required. This paper describes the design journey and technical challenges the authors had in the seismic design of the BRB for the New Zealand International Convention Centre (NZICC). BRB frames are used as the primary ductile lateral load bracing system, acting in parallel with the moment-resisting frames formed by the primary cruciform columns and storey-deep trusses. Due to the vertical irregularity and a dual-system structure, a direct displacement-based design (DDBD) approach was used in parallel with a more convention code-compliant force-based design, to derive the BRB design actions. The design of the BRB connections, in particular the gusset design is particularly challenging due to the diverging views and numerous methodologies available. We have considered several analytical methods for the BRB connection design and commissioned two full-scale testing of the critical BRB and the gusset connection. Lessons learnt
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10

Bessini, Juan, Salvador Monleón, Josep Casanova, and Carlos Lázaro. "Shape Generation of Bending-Active Braced Arches Based on Elastica Curves." Journal of the International Association for Shell and Spatial Structures 62, no. 2 (June 1, 2021): 138–52. http://dx.doi.org/10.20898/j.iass.2021.016.

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The active bending concept provides a new perspective for a well-established structural type which has been used at various scales: the beam-string, consisting of a beam with an attached lower tie in tension and bracing struts balancing the forces between them. The idea goes back to the gutter beams of the Crystal Palace and has been widely used to the present for large-scale structures. When a slender beam is used, the tension in the tie induces curvature in the beam and increases the structural depth of the system; this opens new formal possibilities and results in lightweight structures at the expense of increasing their overall flexibility. Systems of this kind fall within the realm of active bending. We name them bending-active braced arches. The target shape of the system follows the tensioning process and needs to be pre-determined by means of a specific analysis, typically involving dynamic relaxation or optimization-based methods. In this paper, we propose an analytical method to generate shapes for bending-active braced arches. It assumes that each segment of the activated rod between deviators behaves as a segment of elastica; this enables the use of closed-form expressions to evaluate the shape and induced stress level in the active member. Taking advantage of this idea, it is possible to devise a procedure to carry out the shaping process in a sequential way by adequately choosing the design parameters. When alternative choices for the parameters are selected, the problem becomes non-linear and can be solved using suitable techniques. Some examples with different design constraints have been reproduced to illustrate the possibilities of the method.
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Dissertations / Theses on the topic "Alternative Bracing System"

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Al, Mamun Abdullah. "Investigating the Performance of Wood Portal Frames as Alternative Bracing Systems in Light-Frame Wood Buildings." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23142.

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Light-frame shearwall assemblies have been successfully used to resist gravity and lateral loads, such as earthquake and wind, for many decades. However, there is a need for maintaining the structural integrity of such buildings even when large openings in walls are introduced. Wood portal frame systems have been identified as a potential alternative to meet some aspects of this construction demand. The overarching goal of the research is to develop wood portal frame bracing systems, which can be used as an alternative or in combination with light-frame wood shearwalls. This is done through investigating the behavior of wood portal frames using the MIDPLY shearwall framing technique. A total of 21 MIDPLY corner joint tests were conducted with varying bracing details. Also, a finite element model was developed and compared with test results from the current study as well as studies by others. It was concluded from the corner joint tests that the maximum moment resistance increased with the addition of metal straps or exterior sheathings. The test results also showed a significant increase in the moment capacity and rotational stiffness by replacing the Spruce-Pine Fir (SPF), header with the Laminated Veneer Lumber (LVL) header. The addition of the FRP to the standard wall configuration also resulted in a significant increase in the moment capacity. However, no significant effect was observed on the stiffness properties of the corner joint. The FE model was capable of predicting the behavior of the corner joints and the full-scale portal frames with realistic end-conditions. The model closely predicted the ultimate lateral capacity for all the configurations but more uncertainty was found in predicting the initial stiffness.The FE model used to estimate the behavior of the full-scale portal frames constructed using the MIDPLY framing techniques showed a significant increase in the lateral load carrying capacity when compared with the traditional portal frame. It was also predicted using the full-scale FE model that the lateral load carrying capacity of the MIDPLY portal frame would increase with the addition of the metal straps on exterior faces. A parametric study showed that using a Laminated Strand Lumber (LSL) header increased the lateral load carrying capacity and the initial stiffness of the frames relative to the SPF header. The study also showed that there was an increase in the capacity if high strength metal straps were used. Doubling of the nail spacing at header and braced wall segment had a considerable effect on the lateral capacity of portal frame. Also, the initial stiffness was reduced for all the configurations with the doubling of the nail spacing at the header and braced wall segment in comparison with the reference frame.
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Yi-HaoWu and 武宜豪. "A Study on Alternative Bracing of Seismic Resistant Suspended Ceiling Systems." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/53212275280680635582.

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碩士
國立成功大學
建築學系
103
After the amendment to the earthquake resisting building code in 1999, the seismic capacity of structures is enhanced, and the risk of structure damage is therefore reduced. Nevertheless, damage to nonstructural components still occurs frequently, especially to suspended ceiling systems. In the latest Seismic Design of Structures Regulations from Ministry of the Interior in July 2011, the government added the method of seismic resistant suspended ceiling systems to appendix B for reducing seismic damage of suspended ceiling. However, being subjected to site construction limitations, it’s difficult to conduct bracing construction installation in accordance with the regulations, which results in the reduced seismic capacity. This study adopts the concept of equivalent stiffness for an alternative to solve the problem of bracing construction restricted by environment restriction. The alternative method reduces the used space by 50 percent to efficiently solve the original problem. Through the component tests and full-scale experiments, it’s observed that there is only a 10 percent stiffness difference between original system and alternative method, which is in line with the expectations. Keywords: nonstructural components, seismic resistant suspended ceiling systems, bracing, alternatives
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Conference papers on the topic "Alternative Bracing System"

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Canfield, Shawn, and Budy D. Notohardjono. "Structural Analysis of High-End Server Computer Frames Under Earthquake Loading." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2917.

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This paper reports the mechanical design, structural analysis, and experimental correlation of bracing concepts for high-end computer servers subjected to loads simulating earthquake conditions. The development and evaluation of these stiffening alternatives follows a step-by-step process of finite element analysis coupled with parallel experimental testing. The numerical model is derived from the simplified CAD geometry of an existing server frame. An analysis of this frame model is subjected to a load environment similar to those endured under actual horizontal table vibration tests. The result of this series of analyses is a design study examining how a range of bracing designs affects the global frame rigidity. This design study builds toward the objective of constructing a verified model of the server frame and components that will lead to a guideline for implementing stiffener designs on high-end server systems.
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Pacifico, Luciano D. S., and Teresa B. Ludermir. "Data Clustering Using Group Search Optimization with Alternative Fitness Functions." In 2016 5th Brazilian Conference on Intelligent Systems (BRACIS). IEEE, 2016. http://dx.doi.org/10.1109/bracis.2016.062.

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Pacifico, Luciano D. S., Teresa B. Ludermir, and Joao F. L. Oliveira. "Evolutionary ELMs with Alternative Treatments for the Population Out-Bounded Individuals." In 2018 7th Brazilian Conference on Intelligent Systems (BRACIS). IEEE, 2018. http://dx.doi.org/10.1109/bracis.2018.00034.

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