[Thesis] Theory and implementation of plastic-damage model for concrete structures under cyclic and dynamic loading
Author(s): Jeeho Lee
Publish Date: 1996 Published By: University of California, Berkeley Related Links:
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This is the third edition of CSA N289.3, Design procedures for seismic qualification of nuclear power plants. It supersedes the previous edition, published in 2010 under the same title, and 1981 under the title Design Procedures for Seismic Qualification of CANDU Nuclear Power Plants. The title has been changed to reflect a scope change, from addressing only CANDU® reactors to including any nuclear power plant.
Note: CANDU (CANada Deuterium Uranium) is a registered trademark of Atomic Energy of Canada Limited (AECL).
There have been many changes throughout this edition of CSA N289.3; the most significant changes are as follows:
The process for establishing design ground response spectra from probabilistic seismic hazard assessment (PSHA) results, including site response analysis, has been articulated in a more concise format and aligned with current good practices.
Clause 7, Seismic design criteria, has been revised and re-structured to allow for a complete set of requirements for all cases and all structures, systems, and components (SSCs) that need to be addressed in nuclear power plant (NPP) design (including both "nuclear" and "non-nuclear" SSCs).
A new Annex B (informative) on soil structure interaction (SSI) has been introduced in the Standard with the current established practices for SSI analysis. The body of this Standard is aligned with the Annex.
The Standard has been aligned with recently published CSA Group standards, CNSC Regulatory Documents, and industry documents.
Standards in the CSA N289 series of Standards are developed in response to a recognition by the utilities and industries concerned with nuclear facilities in Canada of a need for the documentation of standards applicable to the seismic design and qualification of nuclear structures, systems, and components (SSCs) of nuclear power plants. Users of this Standard should recognize that it has the force of law only when adopted by the Canadian Nuclear Safety Commission (CNSC) or the appropriate authority having jurisdiction (in countries other than Canada).
The purpose of this Standard is to provide requirements that ensure that the nuclear SSCs are designed and seismically qualified in a manner using analytical techniques that meet a quality and standard commensurate with the safety principles necessary to comply with the Canadian nuclear safety philosophy.
The CSA N289 series of Standards consists of five Standards. Some of the objectives of each Standard are summarized as follows:
a) CSA N289.1-18, General requirements for seismic design and qualification of nuclear power plants — to provide guidelines for identifying structures and systems requiring seismic qualification based on nuclear safety considerations;
b) CSA N289.2-10, Ground motion determination for seismic qualification of nuclear power plants — to determine the appropriate seismic ground motion parameters for a particular site;
c) CSA N289.3-10, Design procedures for seismic qualification of nuclear power plants — to provide design requirements, criteria, and methods of analysis for
i) determining the design response spectra and ground motion time-histories to be used in the analysis;
ii) establishing design criteria for structures, systems and components (SSCs), and supports that require seismic qualification; and
iii) performing seismic analyses, including the effects of the soil-structure-interaction.
d) CSA N289.4-12, Testing procedures for seismic qualification of nuclear power plant structure, systems, and components— to provide design requirements and methods for seismic qualification of specific components and systems by testing methods; and
e) CSA N289.5-12, Seismic instrumentation requirements for nuclear power plants and nuclear facilities — to establish the requirements for seismic instrumentation and for seismic-related inspection of structures and systems before and after a seismic event.
The CSA N-Series Standards provide an interlinked set of requirements for the management of nuclear facilities and activities. CSA N286 provides overall direction to management to develop and implement sound management practices and controls, while the other CSA Group nuclear Standards provide technical requirements and guidance that support the management system. This Standard works in harmony with CSA N286 and does not duplicate the generic requirements of CSA N286; however, it may provide more specific direction for those requirements.
Users of this Standard are reminded that the design, manufacture, construction, commissioning, operation, and decommissioning of nuclear facilities in Canada are subject to the provisions of the Nuclear Safety and Control Act and its Regulations. The Canadian Nuclear Safety Commission (CNSC) can therefore impose additional requirements to those specified in this Standard.
Scope
1.1
This Standard specifies the requirements, criteria, methods of analysis, and design procedures for a) determining the design response spectra and ground motion time-histories to be used in the analysis;
b) establishing design criteria for structures, systems and components (SSCs), and supports that require seismic qualification; and
c) performing seismic analyses, including the effects of the soil-structure-interaction.
1.2
This Standard applies to SSCs in nuclear power plants that require seismic qualification by analytical methods (see CSA N289.1). This Standard may also be applied to SSCs that might not require explicit seismic qualification as deemed appropriate by the operating organization or by authorities having jurisdiction (AHJ).
1.3
This Standard may be applied, as appropriate, to other nuclear facilities under the jurisdiction of the Nuclear Safety and Control Act.
1.4
In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
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This book bridges the gap between academic and professional field pertaining to design of industrial reinforced cement concrete and steel structures. It covers pertinent topics on contracts, specifications, soil survey and design criteria to clarify objectives of the design work. Further, it gives out guiding procedures on how to proceed with the construction in phases at site, negotiating changes in equipment and design development. Safety, quality and economic requirements of design are explained with reference to global codes. Latest methods of analysis, design and use of advanced construction materials have been illustrated along with a brief on analysis software and drafting tool.
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This book examines and explains material from the 9th edition of the AASHTO LRFD Bridge Design Specifications, including deck and parapet design, load calculations, limit states and load combinations, concrete and steel I-girder design, bearing design, and more. With increased focus on earthquake resiliency, two separate chapters– one on conventional seismic design and the other on seismic isolation applied to bridges– will fully address this vital topic. The primary focus is on steel and concrete I-girder bridges, with regard to both superstructure and substructure design.
Features:
Includes several worked examples for a project bridge as well as actual bridges designed by the author
Examines seismic design concepts and design details for bridges
Presents the latest material based on the 9th edition of the LRFD Bridge Design Specifications
Covers fatigue, strength, service, and extreme event limit states
Includes numerous solved problems and exercises at the end of each chapter to illustrate the concepts presented
LRFD Bridge Design: Fundamentals and Applications will serve as a useful text for graduate and upper-level undergraduate civil engineering students as well as practicing structural engineers.
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I am wondering if this has been discussed before or not, but I am interested in seeing how you guys make decisions regarding the structural systems you use in the project.
If we considered just basic structural systems such as RC moment frame/ RC shear walls/ Steel moment frames/ Braced steel frames (EBF/CBF). How do you choose between these systems and how do you develop the preliminary/concept model?
Is there any book you recommended regarding developing the conceptual/Preliminary structural models?
Local Compression Property of Rammed Earth Wall with Bamboo Cane Based on ANSYS
Abstract: Local compression damage is a common form of damage in the rammed earth wall bearing buildings.Local compression property of rammed earth wall with bamboo cane under roof load was analyzed using the finite element software ANSYS. Through comparison with rammed earth wall without bamboo cane,the role of bamboo cane in rammed earth wall was analyzed. The role of the method adding wooden blocks in improving local compression property was analyzed. The results indicate that there is obvious stress concentration at the contact area of wall and purlins. The bamboo cane can reduce the displacement of rammed earth wall,and increase the integrity of wall,but there's no use for improving local compression property. The method of adding wooden blocks can improve local compression property effectively.
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The Concrete Manual, now updated to the 2015 IBC and ACI 318-14, provides the guidance and information that inspectors and other construction professionals need to become more proficient in concrete field practices and inspection. The Concrete Manual will: Introduce concrete and explain what it is and why it behaves as it does Explain conventional concrete construction procedures Cover special concrete technologies such as Autoclaved, self-consolidating and pervious Discuss control and inspection procedures Explore statistical quality control methods and their application to concrete construction Detail proper field testing procedures Detail proper placement of reinforcement A Resource Reference section includes a list of the concrete industry and technical organizations to contact for additional information. Your purchase of the Concrete Manual includes exclusive online access to the Concrete Manual Workbook to help you master concrete inspection and field practices. The workbook contains learning objectives, lesson notes, key points for studying, and quizzes for each chapter. The answer key includes references to the applicable sections in the Concrete Manual.
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Author(s)/Editor(s): T. G. Sitharam, Sreevalsa Kolathayar, Ravi Jakka | Size: 20.8 MB| Format:PDF| Quality:Original preprint| Publisher: Springer| Year: 2022| pages: 409 | ISBN: ISBN-13: 978-9811656729 ISBN-10: 981165672X
This volume presents select papers presented at the 7th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. The papers discuss advances in the fields of earthquake engineering connected with structures. Some of the themes include soil structure interaction, dynamic analysis, underground structures, vibration isolation, seismic response of buildings etc. A strong emphasis is placed on connecting academic research and field practice, with many examples, case studies, and best practices. This volume will be of interest to researchers and practicing engineers alike.
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Author(s)/Editor(s): Keith Alexander Seffen | Size: 8.13 MB| Format:PDF| Quality:Original preprint| Publisher: Cambridge University Press| Year: 2022| pages: 203 | ISBN: ISBN-13: 978-1108843812 ISBN-10: 1108843816
Solve problems in elementary structural mechanics thoughtfully and efficiently with this self-contained volume. Covers the basics of structural mechanics and focuses on simple structures, truss frameworks, beams and frames, design choices, and deformity. Carefully interrogates underlying assumptions for efficiencies in working out whilst expounding fundamental principles for a consistent understanding. Heavily connects the practical world of indeterminate structures to their analysis, to underline benefits they impart to the latter: that certain analytical methods provide a wealth of efficient solutions for problems of indeterminate structures compared to determinate ones. Celebrates the beauty of analytical indeterminacy and its relationship to practical structures. Perfect for students invested in structural mechanics, and aims to complement their learning and understanding.
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