A Model Code For The Displacement Based Seismic Design Of Structures Sdbd09 Draft Subject To Public Enquiry

Author : Timothy John Sullivan
Publisher :
ISBN 13 : 9788861980723
Total Pages : 105 pages
Book Rating : 4.24/5 ( download)

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Download or read book A model code for the displacement-based seismic design of structures. DBD12 (superseeds the draft model code DBD09) written by Timothy John Sullivan and published by . This book was released on 2012 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Gian Michele Calvi
Publisher :
ISBN 13 : 9788861980389
Total Pages : 70 pages
Book Rating : 4.84/5 ( download)

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Download or read book A Model Code for the Displacement-based Seismic Design of Structures SDBD09 Draft Subject to Public Enquiry written by Gian Michele Calvi and published by . This book was released on 2009 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : fib Fédération internationale du béton
Publisher : fib Fédération internationale du béton
ISBN 13 : 9782883940659
Total Pages : 206 pages
Book Rating : 4.57/5 ( download)

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Download or read book Displacement-based Seismic Design of Reinforced Concrete Buildings written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2003 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brief summary of the history of seismic design as given in chapter 1, indicates that initially design was purely based on strength or force considerations. When the importance of displacement, however, became better appreciated, it was attempted to modify the existing force-based approach in order to include considerations of displacement, rather than to totally reconsider the procedure on a more rational basis. In the last decade, then, several researchers started pointing out this inconsistency, proposing displacement-based approaches for earthquake engineering evaluation and design, with the aim of providing improved reliability in the engineering process by more directly relating computed response and expected structural performance. The main objective of this report is to summarize, critically review and compare the displacement - based approaches proposed in the literature, thus favouring code implementation and practical use of rational and reliable methods. Chapter 2 Seismic performance and design objectives of this report introduces concepts of performance levels, seismic hazard representation, and the coupling of performance and hazard to define performance objectives. In fact, for displacement analysis to be relevant in the context of performance-based design, the structural engineer must select appropriate performance levels and seismic loadings. A critical review of some engineering limit states appropriate to the different performance levels is therefore proposed. In chapter 3 Conceptual basis for displacement-based earthquake resistant design, the fundamental principles associated with displacement of the ground during an earthquake and the effects, in terms of displacement, in the structure, are reviewed. The historical development guides the presentation with a review of general linear and nonlinear structural dynamics principles, general approaches to estimate displacement, for both ground and structure, and finally a general presentation of the means to measure and judge the appropriateness of the displacements of the structure in section. Chapter 4 Approaches and procedures for displacement-based design can be somehow considered the fundamental part of the report, since a critical summary of the displacement - based approaches proposed by different researchers is presented there. Displacement - based design may require specific characterization of the input ground motion, a topic addressed in Chapter 5 Seismic input. In general, various pertinent definitions of input motion for non-code format analysis are included, while peak ground parameters necessary for code base shear equations are only addressed as needed for the definition of motion for analysis. Chapter 6 Displacement capacity of members and systems addresses the fundamental problem of evaluating the inelastic displacement capacity of reinforced concrete members and realistic values of their effective cracked stiffness at yielding, including effects of shear and inclined cracking, anchorage slip, bar buckling and of load cycling. In Chapter 7 Application and evaluation of displacement-based approaches, some of the many different displacement based design procedures briefly introduced in Chapter 4 are applied to various case studies, identifying and discussing the difficulties a designer may encounter when trying to use displacement based design. Results for five different case studies designed in accordance with eight different displacement based design methods are presented. Although in general case studies are considered a useful but marginal part of a state of the art document, in this case it has to be noted that chapter 7 is possibly the most innovative and fundamental part of the whole report. The conclusions of chapter 7 are the fundamental and essential conclusions of the document and allow foreseeing a bright future for displacement - based design approaches. The state-of-art report has been elaborated over a period of 4 years by Task Group 7.2 Displacement-based design and assessment of fib Commission 7Seismic design, a truly international team of experts, representing the expertise and experience of all the important seismic regions of the world. In October 2002 the final draft of the Bulletin was presented to the public during the 1st fibCongress in Osaka. It was also there that it was approved by fib Commission 7Seismic Design.

Author : C.MILLER HOFMAYER (C.WANG, Y.COSTELLO, J.)
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.73/5 ( download)

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Download or read book DISPLACEMENT BASED SEISMIC DESIGN METHODS. written by C.MILLER HOFMAYER (C.WANG, Y.COSTELLO, J.) and published by . This book was released on 2003 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: A research effort was undertaken to determine the need for any changes to USNRC's seismic regulatory practice to reflect the move, in the earthquake engineering community, toward using expected displacement rather than force (or stress) as the basis for assessing design adequacy. The research explored the extent to which displacement based seismic design methods, such as given in FEMA 273, could be useful for reviewing nuclear power stations. Two structures common to nuclear power plants were chosen to compare the results of the analysis models used. The first structure is a four-story frame structure with shear walls providing the primary lateral load system, referred herein as the shear wall model. The second structure is the turbine building of the Diablo Canyon nuclear power plant. The models were analyzed using both displacement based (pushover) analysis and nonlinear dynamic analysis. In addition, for the shear wall model an elastic analysis with ductility factors applied was also performed. The objectives of the work were to compare the results between the analyses, and to develop insights regarding the work that would be needed before the displacement based analysis methodology could be considered applicable to facilities licensed by the NRC. A summary of the research results, which were published in NUREGICR-6719 in July 2001, is presented in this paper.

Author : P. Fajfar
Publisher : Routledge
ISBN 13 : 1351417193
Total Pages : 619 pages
Book Rating : 4.98/5 ( download)

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Download or read book Seismic Design Methodologies for the Next Generation of Codes written by P. Fajfar and published by Routledge. This book was released on 2019-09-10 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings, arising from an international workshop, present research results and ideas on issues of importance to seismic risk reduction and the development of future seismic codes.

Author :
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.29/5 ( download)

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Download or read book DISPLACEMENT BASED SEISMIC DESIGN CRITERIA. written by and published by . This book was released on 1999 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The USNRC has initiated a project to determine if any of the likely revisions to traditional earthquake engineering practice are relevant to seismic design of the specialized structures, systems and components of nuclear power plants and of such significance to suggest that a change in design practice might be warranted. As part of the initial phase of this study, a literature survey was conducted on the recent changes in seismic design codes/standards, on-going activities of code-writing organizations/communities, and published documents on displacement-based design methods. This paper provides a summary of recent changes in building codes and on-going activities for future codes. It also discusses some technical issues for further consideration.

Author : Mervyn J Kowalsky
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.66/5 ( download)

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Download or read book Displacement-based Design written by Mervyn J Kowalsky and published by . This book was released on 1994 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Mary Kristine Epperson
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.45/5 ( download)

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Download or read book Linear Elastic Modeling for Displacement-based Seismic Design of Woodframe Buildings written by Mary Kristine Epperson and published by . This book was released on 2003 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Metin Oguzmert
Publisher :
ISBN 13 : 9781109899375
Total Pages : 142 pages
Book Rating : 4.78/5 ( download)

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Download or read book Displacement-based Seismic Design of Structures Using Equivalent Linear System Parameters written by Metin Oguzmert and published by . This book was released on 2006 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents a new method to calculate equivalent linear system parameters for estimating the maximum inelastic seismic response of structures. Since inelastic response is dependent on the type of hysteretic model used, two hysteretic models: the Bilinear and Q-model hysteretic models, are considered. The effects of these hysteretic models, initial damping, post yielding stiffness and degrading behavior on the equivalent linear system's period and equivalent viscous damping are investigated. To check the accuracy of the proposed method, the maximum inelastic responses of structures computed using six different methods are compared and studied. It is observed that the proposed approach gives more accurate results than the other methods for structures that experience ductile flexural behavior with natural periods in the range 0.3 to 3 seconds. The proposed equivalent period and equivalent viscous damping equations are then implemented into the Displacement Based Design Method to design sixteen single degree-of-freedom sample structures. Dynamic inelastic time history analyses are performed on all these sample structures to evaluate the accuracy of the proposed seismic design approach. The results indicate that the accuracy and versatility of the Displacement Based Design Method can be improved by the use of the proposed equivalent linear system parameters.

Author : Farhad Ahmadi Koutalan
Publisher :
ISBN 13 :
Total Pages : 1396 pages
Book Rating : 4.07/5 ( download)

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Download or read book Displacement-based Seismic Design and Tools for Reinforced Masonry Shear-wall Structures written by Farhad Ahmadi Koutalan and published by . This book was released on 2012 with total page 1396 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research described here is part of a multi-university project on "Performance-based Seismic Design Methods and Tools for Reinforced Masonry Shear-Wall Structures." Within the context of that project, the objective of the research described in this dissertation was to develop and validate a specific displacement-based seismic design methodology for masonry structures. Experimental work consisted of reversed cyclic loading tests of reinforced masonry wall segments with different boundary conditions, aspect ratios, axial loads, and reinforcement detailing. Analytical work consisted of developing analytical models for in-plane concrete masonry shear wall segments; calibrating those models using reversed cyclic test data; and using those models to successfully predict the nonlinear seismic response of two full-scale, multi-story reinforced masonry specimens tested on the shake-table at the University of California at San Diego. Design work consisted of the force-based and displacement based design of those specimens. Based on the results, provisions for displacement-based seismic design are proposed for inclusion in United States design codes.