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Seismic Behavior Analysis And Design Of Eccentrically Braced Frames With Vertical Shear Links V Ebfs
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Book Synopsis Seismic Behavior, Analysis and Design of Eccentrically Braced Frames with Vertical Shear Links (V-EBFs) by : Mohammad Ghasem Vetr Tamijani
Download or read book Seismic Behavior, Analysis and Design of Eccentrically Braced Frames with Vertical Shear Links (V-EBFs) written by Mohammad Ghasem Vetr Tamijani and published by . This book was released on 1998 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of the Design of Eccentrically Braced Frames with Replaceable Shear Links by : Nabil Mansour
Download or read book Development of the Design of Eccentrically Braced Frames with Replaceable Shear Links written by Nabil Mansour and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review and Evaluation of Design Methods for Eccentrically Braced Frames by : Denis M. Regan
Download or read book Review and Evaluation of Design Methods for Eccentrically Braced Frames written by Denis M. Regan and published by . This book was released on 1988 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Behavior of Active Beam Links in Eccentrically Braced Frames by : Keith D. Hjelmstad
Download or read book Seismic Behavior of Active Beam Links in Eccentrically Braced Frames written by Keith D. Hjelmstad and published by . This book was released on 1983 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Performance of Eccentrically Braced Frames Designed According to Canadian Seismic Provisions by : Mona Rais Esmaili
Download or read book Seismic Performance of Eccentrically Braced Frames Designed According to Canadian Seismic Provisions written by Mona Rais Esmaili and published by . This book was released on 2015 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eccentrically braced frames (EBFs) are very effective lateral load resisting systems against earthquakes because of their hybrid behavior that includes great stiffness corresponding to the bracing actions, and considerable ductility owing to the inelastic activity of a small part of the floor beam called link. Current capacity design approach of EBFs is to confine the inelastic behavior of the frame primarily to the link such that other members remain essentially in elastic range. Limited research works are available in the literature studying the behavior of multi-storey EBFs designed according to the current Canadian seismic provisions. This thesis was aimed to study seismic performance of EBFs through nonlinear time history analysis (NLTHA) of three 4-, 8- and 14-storey chevron eccentrically braced frames. The selected EBFs were subjected to real and artificial ground motion records scaled to match the response spectrum of Vancouver. All the EBFs, designed according to current capacity design provisions, exhibited excellent seismic performance in terms of stiffness, strength, and ductility. It was observed that the inelastic link rotations of all EBFs were lower than the design limit of 0.08 rad, except for the two upper floors in 14-storey EBF where the link rotation slightly exceeded the limit. Seismic analysis also showed that maximum inelastic link shear forces exceeded the values recommended in design for many earthquake records. Although NLTHA can precisely estimate structural seismic responses, it requires high computational demands making it impractical for engineering design offices. On the other hand, the conventional pushover analysis does not consider contributions of higher modes to the structural responses and thus it often does not provide good estimation of seismic responses for taller buildings. Capacity-Spectrum Method (CSM) and modal pushover analysis (MPA) are two simple nonlinear static methods that have been proposed and recently used for seismic performance evaluation of few lateral load-resisting systems. This research further studies the application of CSM and MPA as alternatives for rigorous NLTHA to estimate seismic performance parameters of EBFs. The three selected EBFs were analyzed using MPA and CSM and the results were compared with nonlinear seismic analysis results. It was observed that both CSM and MPA predicted the peak top displacements of EBFs with sufficient accuracy.
Book Synopsis Design Considerations for Shear Links in Eccentrically Braced Frames by : James O. Malley
Download or read book Design Considerations for Shear Links in Eccentrically Braced Frames written by James O. Malley and published by . This book was released on 1983 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Seismically Resistant Eccentrically Braced Steel Frame Systems by : Kazuhiko Kasai
Download or read book A Study of Seismically Resistant Eccentrically Braced Steel Frame Systems written by Kazuhiko Kasai and published by . This book was released on 1986 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Analysis of Seismically Resistant Eccentrically Braced Frames by : James M. Ricles
Download or read book Dynamic Analysis of Seismically Resistant Eccentrically Braced Frames written by James M. Ricles and published by . This book was released on 1987 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Seismic Performance of Eccentrically Braced Frames by : Scott Michael Bolin
Download or read book Assessment of Seismic Performance of Eccentrically Braced Frames written by Scott Michael Bolin and published by . This book was released on 1991 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Behavior of Long Links in Eccentrically Braced Frames by : Michael D. Engelhardt
Download or read book Behavior of Long Links in Eccentrically Braced Frames written by Michael D. Engelhardt and published by . This book was released on 1989 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Behaviour of Steel Structures in Seismic Areas by : Federico Mazzolani
Download or read book Behaviour of Steel Structures in Seismic Areas written by Federico Mazzolani and published by CRC Press. This book was released on 2009-12-03 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt: Behaviour of Steel Structures in Seismic Areas comprises the latest progress in both theoretical and experimental research on the behaviour of steel structures in seismic areas. The book presents the most recent trends in the field of steel structures in seismic areas, with particular reference to the utilisation of multi-level performance bas
Book Synopsis Experimental and Analytical Studies of Seismic Resistant Eccentrically Braced Steel Frames Having Composite Floors by : James Michael Ricles
Download or read book Experimental and Analytical Studies of Seismic Resistant Eccentrically Braced Steel Frames Having Composite Floors written by James Michael Ricles and published by . This book was released on 1987 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experiments on Eccentrically Braced Frames with Composite Floors by : James M. Ricles
Download or read book Experiments on Eccentrically Braced Frames with Composite Floors written by James M. Ricles and published by . This book was released on 1987 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eccentrically Braced Steel Frames as a Seismic Force Resisting System by : Samuel Dalton Hague
Download or read book Eccentrically Braced Steel Frames as a Seismic Force Resisting System written by Samuel Dalton Hague and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Braced frames are a common seismic lateral force resisting system used in steel structure. Eccentrically braced frames (EBFs) are a relatively new lateral force resisting system developed to resist seismic events in a predictable manner. Properly designed and detailed EBFs behave in a ductile manner through shear or flexural yielding of a link element. The link is created through brace eccentricity with either the column centerlines or the beam midpoint. The ductile yielding produces wide, balanced hysteresis loops, indicating excellent energy dissipation, which is required for high seismic events. This report explains the underlying research of the behavior of EBFs and details the seismic specification used in design. The design process of an EBF is described in detail with design calculations for a 2- and 5-story structure. The design process is from the AISC 341-10 Seismic Provisions for Structural Steel Buildings with the gravity and lateral loads calculated according to ASCE 7-10 Minimum Design Loads for Buildings and Other Structures. Seismic loads are calculated using the Equivalent Lateral Force Procedure. The final member sizes of the 2-story EBF are compared to the results of a study by Eric Grusenmeyer (2012). The results of the parametric study are discussed in detail.
Book Synopsis Seismic Behavior of an Eccentrically X-braced Steel Structure by : Ming-San Yang
Download or read book Seismic Behavior of an Eccentrically X-braced Steel Structure written by Ming-San Yang and published by . This book was released on 1982 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stability Design of Steel Frames by : Wai-Kai Chen
Download or read book Stability Design of Steel Frames written by Wai-Kai Chen and published by CRC Press. This book was released on 2018-08-30 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stability Design of Steel Frames provides a summary of the behavior, analysis and design of structural steel members and frames with flexibly-jointed connections. The book presents the theory and design of structural stability and includes extensions of computer-based analyses for individual members in space with imperfections. It also shows how connection flexibility influences the behavior and design of steel frames and how designers must consider this in a limit-state analysis and design procedure. The clearly written text and extensive bibliography make this a practical book for advanced students, researchers and professionals in civil and structural engineering, as well as a useful supplement to traditional books on the theory and design of structural stability.
Book Synopsis Development and Validation of Shear Links for LCF and EBF Seismic Systems Via Testing and Numerical Modelling by : Dmitry Volynkin
Download or read book Development and Validation of Shear Links for LCF and EBF Seismic Systems Via Testing and Numerical Modelling written by Dmitry Volynkin and published by . This book was released on 2016 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eccentrically Braced Frames (EBFs) are a widely used seismic resisting structural steel system. Since their inception in the late 1970s, they have been a viable option with an available stiffness that is between simple braced systems and moment resisting systems. A similar concept, the linked column frame (LCF), uses shear links between two closely spaced columns. In both cases, the key component is the active link or the shear link, and this component is the objective of this study. The performance of high rise EBF buildings in the 2010 and 2011 Christchurch earthquakes was beyond that which was expected, especially considering the very high accelerations recorded. As the concrete high-rises were torn down, two EBF buildings remained standing and only required some structural repair. These events prompted a renewed interest in bolted shear links, as well as their performance. While some research into replaceable shear links had already been done (Mansour, 2011), the objectives of this study were to improve on the shear link itself, with the consideration that links built in the future are likely to be bolted. The main components of this study were to: 1. Reduce or eliminate the requirements for intermediate web stiffeners, as they were suspected of being detrimental to performance. Furthermore, any reduction in stiffening requirements is a direct fabrication cost saving. Links with low web aspect ratios were found to achieve exceptional ductilities when no stiffeners were included, prompting new design equations. 2. Ensure that the stresses in the ends of links are adequately transferred into the endplates without causing fractures. Although most of the experimental links had web doubler plates included, four had varied lengths of such doubler plates from 0.0 in. to 8.0 in. The link without any doubler plates performed to a similar level to its peers, and thus it is likely that links with quality end details may not need web doubler plates at all. 3. Evaluate the performance of a link with double sided stiffeners without the use of web welds, as opposed to conventional single sided, welded stiffeners. This link performed well, and web-weld-less double sided stiffeners may be an economical alternative to conventional stiffeners for deeper sections of links. 4. Evaluate the performance of a link with thin endplates that are made efficient with the use of gusset plates. This link performed to an acceptable level and provides evidence for a cost effective alternative to thick endplates, especially considering the high overstrength end moments in links, typically requiring 16-bolt connections. 5. Examine the potential use of an alternative EBF arrangement where the collector beam is over sized, and the link section is formed by cutting out parts of the beam's web. After running a series of finite element models each with a unique variation, a number of approximate design rules were derived such that future research could develop this idea further experimentally. 6. Ensure that during testing, the secondary elements (members that are not the shear link), do not yield and are not close to yielding. None of the instrumented elements experienced any unexpected yielding, however the concerns for high stresses in the collector beam panel zone during design were warranted. The use of an existing New Zealand design equation is recommended as an extra check for design codes worldwide. The above objectives were mainly conducted experimentally, except: the data set for item 1 was greatly expanded through the use of a calibrated numerical model which was then used in an extensive parametric study; item 5 was purely finite element based; and, a small parametric study was included for item 3 in an attempt to expand on the trends found there.