Nonlinear analysis methods such as static pushover are globally considered a reliable tool for seismic and structural assessment. But the accuracy of seismic capacity estimates—which can prevent catastrophic loss of life and astronomical damage repair costs—depends on the use of the correct basic input parameters.
Seismic Design Aids for Nonlinear Analysis of Reinforced Concrete Structures simplifies the estimation of those vital parameters. Many design engineers make the relatively common mistake of using default properties of materials as input to nonlinear analyses without realizing that any minor variation in the nonlinear characteristics of constitutive materials, such as concrete and steel, could result in a solution error that leads to incorrect assessment or interpretation.
Streamlined Analysis Using a Mathematical Model
To achieve a more accurate pushover analysis and improve general performance-based design, this book reassesses some key inputs, including axial force-bending moment yield interaction, moment-curvature, and moment-rotation characteristics. It analyzes these boundaries using a detailed mathematical model of reinforced concrete sections based on international codes, and then proposes design curves and tables derived from the authors’ studies using a variety of nonlinear tools, computer programs, and software. The text reviews relevant literature and describes mathematical modeling, detailing numerical procedures step by step.
Including supplementary online material that can be used to compute any parameter, this reference delineates nonlinear properties of materials so that they can be used instantly for seismic analysis without having to solve cumbersome equations.
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Posted by: aslam - 02-07-2010, 02:30 AM - Forum: Archive
- No Replies
Seismic Design with Supplemental Energy Dissipation Devices
by Robert D Hanson and TSU T Soong
The purpose of this monograph is to impart basic concepts of the supplemental energy dissipation technology to design engineers, architects, and buildings officials so they can understand its benefits and limitations in structural applications.
Authors: Robert D Hanson
University of Michigan, Ann Arbor, Michigan
TSU T Soong
State University of New York at Buffalo & Multidisciplinary Centre for Earthquake Engineering Research, Buffalo, New York
Contents
Message from EERI President
Message from NICEE
Foreward
Preface
Acknowledgments
Chapter 1: Introduction
Energy Dissipation Devices
Effect of Viscous Damping on Dynamic Response
Damper-Added Structure versus Traditional Structure
Design and Analysis
Chapter 2: Characterization and Applicability of Dampers
Metallic Yielding and Friction Devices
VE Solid Devices
Viscous Fluid Devices
Summary of Equivalent Damping and Stiffness
Applicability
Chapter 3: Analysis of Damper- Added Structures
Nonlinear Structure/Nonlinear Damper (NS/ND) Procedure
Nonlinear Structure/Linearized Damper (NS/LD) Procedure
Linear Structure/Nonlinear Damper (LS/ND) Procedure
Linear Structure/Linearized Damper (LS/LD) Procedure
Chapter 4: Damper Design for Structural Applications
General Considerations
Design Procedure
Design Examples
Application Examples
References
Appendix A: Nonproportional Damping Eigenvalue Solution
SDOF—Undamped System
SDOF—Viscous Damped System
MDOF—Undamped System
MDOF—Proportionally Damped System
MDOF—Nonproportionally Damped System
Appendix B: Code Development
Background
Appendix 13 for FEMA 368
Regards...
I suggest a new section creates in the forum on tips that the users could contribute on the managing software. This related to the experience that they have for the managing of the programs
As like for example, some tips on the managing of sap2000, civil3D, revit structure, etc. not necessarily with videoes but they might be descriptions or steps on the resolution of algun problem especially, etc...
Hello
In sap2000 i know how to define wind burdening, but i have probelm wiht passing on the structure, Any idea how to do these,or bether any tutorial (video or pdf),
Tanx in advance!!
The Autodesk Subscription Advantage Pack for AutoCAD 2010 includes a new set of TimeSaver Tools to help you work faster. You can now more easily select and work with objects when editing drawings to help streamline workflows. Several TimeSaver Tools were top AUGI wish-list requests.
New TimeSaver Tools include:
* Hide and isolate objects — Turn objects on and off regardless of layer to save time in tracking objects across layers and quickly show or hide objects as needed.
* Select similar — Select objects with similar properties, such as layer or linetype, or blocks and xrefs with the same names.
* Add selected — Create a new object for your drawing by matching the type and properties of another selected object.
* Hatch to back — Streamline the process of working with hatches by easily selecting hatches and then sending them to the back of the drawing.
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ASCE 4-98 (Seismic Analysis of Safety-Related Nuclear Structures and Commentary)
Hi. Anybody has this standarad:
Abstract:
This standard provides requirements for performing analyses for the purpose of new structure design or existing structure evaluation that will lead to the reliability of structures under earthquake motions. The goal of this standard is to provide rules and analysis parameters that are expected to produce seismic responses that have about the same probability of non-exceedance as the input. Specifications of input motions are provided. Analysis standards are given for modeling of structures, analysis of structures, soil-structure interaction modeling and analysis, input for subsystem seismic analysis, and special structures such as buried pipes and conduits, earth-retaining walls, above-ground vertical tanks, raceways, and seismic-isolated structures. Non-mandatory Appendix A provides a discussion on Seismic Probabilistic Risk Assessments and Seismic Margin Assessments.
'Technology Innovation in Underground Construction- Gernot Beer'
'Shotcrete: More Engineering Developments,Proceedings of the Second International Conference on Engineering Developments in Shotcrete, October 2004, Cairns, Queensland, Australia- Erik Stefan Bernard'
AEC Magazine 2005-2009 (All Issues)
English | PDF | 27 issues (bimonthly) | 232MB
Published bi-monthly, AEC Magazine has a bold agenda that reflects the evolutionary nature of this fast-moving sector with its proliferation of software and hardware technologies and the collaborative working practices that are integral to today's design and engineering workflow. AEC Magazine is the only title devoted exclusively to AEC technology solutions in use throughout Building, Architecture, Civil & Structural Engineering, offering greater depth of coverage in the field than any other journal.
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* Publisher: Taylor & Francis, Inc.
* Publication Date: 1995-02-01
* ISBN-10 / ASIN: 0203475313
* ISBN-13 / EAN: 9780203475317
Waterjet technology is used in a variety of industries including civil engineering, mining, geotechnical engineering, tunnelling, defence, construction and conservation. This book is essential reading for all those engaged in waterjet technology - from manufacturers of the equipment through to Government Contracting Officers who let the awards, to the individual contractors and their engineers.
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