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Author: P.A. Timler,G.L.kulak | Size: 3.27 MB | Format:PDF | Quality:Scanner | Publisher: University of Alberta | Year: 1983 | pages: 112
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ANALYSIS OF STEEL PLATE SHEAR WALLS USING THE MODIFIED STRIP MODEL
Author: Jonah J. Shishkin,Robert G. Driver | Size: 2.80 MB | Format:PDF | Quality:Original preprint | Publisher: University of Alberta | Year: 2005 | pages: 164
ABSTRACT
Unstiffened steel plate shear walls are an effective and economical method of resisting
lateral forces on structures due to wind and earthquakes. Engineers in the workplace
require the ability to assess the inelastic structural response of steel plate shear walls
using conventional analysis software that is commonly available and is relatively simple
and expeditious to use. The strip model, a widely accepted analytical tool for steel plate
shear wall analysis, is refined based on phenomena observed during loading of steel plate
shear walls in the laboratory. These observations are modelled first in detail and then
simplified to provide an accurate prediction of the overall inelastic behaviour, while
being efficient to model. The modifications are tested on several test specimens to
validate their use. A parametric study examines the effect of varying the angle of
inclination of the tension strips on the predicted inelastic behaviour of the model.
TABLE OF CONTENTS
ABSTRACT....................................................................................................................... i
ACKNOWLEDGEMENTS ............................................................................................. ii
TABLE OF CONTENTS ................................................................................................ iii
LIST OF TABLES........................................................................................................... vi
LIST OF FIGURES........................................................................................................ vii
LIST OF SYMBOLS ....................................................................................................... ix
1. INTRODUCTION...................................................................................................... 1
1.1 BACKGROUND ........................................................................................................ 1
1.2 OBJECTIVES AND SCOPE ......................................................................................... 1
1.3 CHAPTER OVERVIEW.............................................................................................. 2
2. LITERATURE REVIEW.......................................................................................... 4
2.1 INTRODUCTION....................................................................................................... 4
2.2 MIMURA AND AKIYAMA (1977) ............................................................................. 5
2.3 THORBURN ET AL. (1983)........................................................................................ 5
2.4 TIMLER AND KULAK (1983) ................................................................................... 7
2.5 TROMPOSCH AND KULAK (1987)............................................................................ 8
2.6 ELGAALY ET AL. (1993A)........................................................................................ 9
2.7 XUE AND LU (1994) ............................................................................................. 10
2.8 DRIVER ET AL. (1997; 1998A, B)........................................................................... 11
2.9 ELGAALY AND LIU (1997) .................................................................................... 14
2.10 LUBELL (1997) ..................................................................................................... 14
2.11 TIMLER ET AL. (1998) ........................................................................................... 17
2.12 REZAI (1999)........................................................................................................ 18
2.13 ASTANEH-ASL (2001) .......................................................................................... 19
2.14 KULAK ET AL. (2001) ............................................................................................ 19
2.15 BEHBAHANIFARD ET AL. (2003) ............................................................................ 21
2.16 BERMAN AND BRUNEAU (2003) ........................................................................... 22
2.17 KHARRAZI ET AL. (2004)....................................................................................... 23
3. DETAILED MODEL............................................................................................... 33
3.1 INTRODUCTION..................................................................................................... 33
3.2 TEST SPECIMEN AND MODEL GEOMETRY AND LOADING ..................................... 34
3.3 PANEL ZONES....................................................................................................... 35
3.4 PLASTIC HINGES................................................................................................... 36
3.5 COMPRESSION STRUT ........................................................................................... 38
3.6 DETERIORATION OF INFILL PLATE........................................................................ 39
3.7 DETAILED MODEL ANALYSIS AND RESULTS ........................................................ 40
3.7.1 Pushover Analysis Overview............................................................................ 40
3.7.2 Pushover Analysis of the Detailed Model ........................................................ 42
3.7.3 Pushover Analysis Results................................................................................ 43
3.8 SUMMARY ............................................................................................................ 44
4. THE SIMPLIFIED MODEL................................................................................... 53
4.1 INTRODUCTION..................................................................................................... 53
4.2 FRAME–JOINT ARRANGEMENT............................................................................. 53
4.3 CROSSHATCHING OF DIAGONAL TENSION STRIPS................................................. 55
4.4 BILINEAR PLASTIC HINGES................................................................................... 56
4.5 DETERIORATION HINGE AND COMPRESSION STRUT ............................................. 57
4.6 PUSHOVER ANALYSIS RESULTS FOR THE SIMPLIFIED MODEL .............................. 58
4.7 SENSITIVITY ANALYSIS ON THE COMPRESSION STRUT LIMITING STRESS............. 59
4.8 MODIFIED STRIP MODEL FRAME FORCE RESULTS................................................ 59
4.9 SUMMARY ............................................................................................................ 61
5. VALIDATION OF THE MODIFIED STRIP MODEL....................................... 77
5.1 INTRODUCTION..................................................................................................... 77
5.2 TIMLER AND KULAK (1983) SPECIMEN ................................................................ 77
5.2.1 Model Geometry and Loading.......................................................................... 77
5.2.2 Analysis Results and Model Refinements......................................................... 80
5.3 LUBELL (1997) ONE–STOREY SPECIMEN (SPSW2).............................................. 82
5.3.1 Model Geometry and Loading.......................................................................... 82
5.3.2 Analysis Results and Model Refinements......................................................... 83
5.4 LUBELL (1997) FOUR–STOREY MODEL (SPSW4)................................................ 85
5.4.1 Model Geometry and Loading.......................................................................... 85
5.4.2 Analysis Results and Model Refinements......................................................... 86
5.5 SUMMARY ............................................................................................................ 87
6. PARAMETRIC STUDY.......................................................................................... 97
6.1 INTRODUCTION..................................................................................................... 97
6.2 DESIGN CRITERIA ................................................................................................. 97
6.3 PARAMETERS...................................................................................................... 100
6.4 ONE-STOREY MODELS ....................................................................................... 101
6.4.1 Model Arrangement and Design .................................................................... 101
6.4.2 Analysis and Results....................................................................................... 103
6.5 FOUR-STOREY MODELS...................................................................................... 104
6.5.1 Model Arrangement and Design .................................................................... 104
6.5.2 Analysis and Results....................................................................................... 105
6.6 FIFTEEN-STOREY MODELS ................................................................................. 108
6.6.1 Model Arrangement and Design .................................................................... 108
6.6.2 Analysis and Results....................................................................................... 109
6.7 SUMMARY .......................................................................................................... 110
7. SUMMARY AND CONCLUSIONS..................................................................... 129
7.1 SUMMARY .......................................................................................................... 129
7.2 CONCLUSIONS .................................................................................................... 132
7.3 RECOMMENDATIONS FOR FUTURE RESEARCH.................................................... 134
REFERENCES.............................................................................................................. 136
APPENDIX A................................................................................................................ 141
1. INTRODUCTION
1.1 Background
Numerous research programs have confirmed that steel plate shear walls are an effective
method of resisting lateral forces on structures such as those due to wind and
earthquakes. Moreover, they have been shown to be an economical solution (Timler et al.
1998). A conventional steel plate shear wall consists of thin and unstiffened steel plates
bounded by steel columns and beams. Steel plate shear walls can be multiple storeys high
and can be one or more bays wide with either simple shear or moment–resisting beam-tocolumn
connections. The primary mechanism for resisting storey shears arising from
lateral loads comes from the post-buckling inclined tension field that forms in the infill
plate. Steel plate shear walls have been shown to possess considerable strength, ductility,
redundancy, and robustness (e.g., Timler and Kulak 1983, Driver et al. 1997; 1998a).
Modern design codes and standards are increasingly requiring an accurate assessment of
inelastic structural response. However, current methods of analysing steel plate shear
walls to obtain a reasonable approximation of the complete structural response curve
require the use of sophisticated nonlinear finite element software or, alternatively, elastic
analyses that must be supplemented with time consuming hand calculations. While
research institutions often use powerful and sophisticated software packages, they are not
common in industry. Design engineers require the ability to assess inelastic structural
response using conventional analysis software that is commonly available and is
relatively simple and expeditious to use. Most analysis software used by design engineers
are elastic analysis programs that utilise inelastic methods, such as rigid–plastic hinges, to
approximate the post-yield behaviour of a structure.
1.2 Objectives and Scope
This research proposes refinements to the strip model, as described by Thorburn et al.
(1983), to obtain a more accurate prediction of the inelastic behaviour of steel plate shear
walls using a conventional structural engineering software package. The refinements are
based on observations from laboratory tests on steel plate shear wall specimens.
Modelling efficiency is also evaluated against accuracy of the solution. A modifiedversion of the strip model is proposed, which is shown to be efficient to generate while
maintaining a high degree of accuracy. The parameters of the proposed model are generic
and can be implemented into any structural analysis program with pushover analysis
capabilities. A parametric study is also performed to determine the sensitivity of the
predicted nonlinear behaviour to variations in the angle of inclination of the infill plate
tension field.
The research focuses on the pushover analysis method to obtain a good prediction of the
inelastic behaviour of steel plate shear wall test specimens, which for cyclically loaded
specimens is best captured by the envelope of the hysteresis curves. The research is
limited to the analysis of unstiffened steel plate shear walls with relatively thin infill
plates that contain no openings. While other analytical methods have been proposed to
predict the inelastic behaviour of steel plate shear walls, they are not examined in detail
in this report.
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AASHTO Guide Specifications for Horizontally Curved Steel Girder Highway Bridges with Design Examples for I-Girder and Box-Girder Bridges Now with step-by-step design examples, this title supersedes the 1993 edition of Guide Specifications for Horizontally Curved Highway Bridges (formerly GHC-3).
This publication AASHTO Guide Specifications for Horizontally Curved Steel Girder Highway Bridges is based on NCHRP Report 424, which provides the theoretical background for the development of those specifications.
It reflects the extensive research on curved-girder bridges that has been conducted since 1980 and many important changes in related provisions of the straight-girder specifications. Includes errata, which can also be downloaded below.
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Not Complete only 128 pages(Originally 412) without design examples
Redesign and move from Bad Post mybest
Dear member, please complete all information before post a new thread. If not, your thread will rest in Bad Post and your works become vain.
Anyone has a quality manual or a quality control plan of a geotechnical engineering firm?.
I ve been trying to develop one, as it is required by a client, but I am not sure if I am following the appropiate steps of any standard quality control plan of any geotechnical enginerering firm.
Title: Concrete Sections Under Biaxial Bending: Interactive Analysis With Spreadsheets
Author:Fariborz Barzegar, Terence Erasito
Journal: Concrete International
Volume:17
Issue:12
Date: December 1, 1995
Page:28-33
url :
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Minning and Rock Construction Technology Desk Reference,Rock Mechanics, Drilling & Blasting
Editors: Agne Rustan, Claude Cunningham, William Fourney, Alex Spathis, K.R.Y. Simha | Size: 3.7 MB | Format:PDF | Quality:Unspecified | Publisher: CRCNetBase | Publish at: November 10, 2010 | pages: 436 | ISBN: 978-0415600439
A comprehensive and illustrated desk reference with terms, definitions, explanations, abbreviations, trade names, quantifications, units and symbols used in rock mechanics, drilling and blasting. Now including rock mechanics as well, this updated edition presents 5127 terms, 637 symbols, 507 references, 236 acronyms, 108 formulas, 68 figures, 47 tables, 58 abbreviations and 7 shortened forms. Terms are also included from related disciplines commonly used, such as chemistry, detonics, fractography, fracture dynamics, mechanics and strength of materials, micro mechanics, geology, geophysics, image analysis, petrology, physics, seismology and more. This extended and updated edition of 'Rock Blasting Terms and Symbols' (Balkema, 1998) by Dr. Agne Rustan is an essential reference for engineers and advanced students in mining, geotechnical, geological, tunneling and construction engineering.
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This volume is drawn from the proceedings of the Working Conference on Reliability and Optimization of Structural Systems. Selected contributions from expert authors focus on the reliability and optimization of structural and infrastructural systems. The chapters examine probabilistic strength and load modeling, lifecycle reliability, damage accumulation, and issues related to health monitoring and inspection. The book also reviews applications, discusses structural safety, and includes material on special structures such as bridges, wind turbines, and offshore structures.
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Deep Mining Challenges: International Mining Forum 2009
Editors: Eugeniusz J. Sobczyk, Jerzy Kicki, Piotr Saluga | Size: 3.7 MB | Format:PDF | Quality:Original preprint | Publisher: CRCNetBase | Publish at: 23 April 2009 | pages: 218 | ISBN: 978-0415804288
The International Mining Forum is a recurring event, hosted by the University of Science and Technology in Cracow, Poland, bringing together an international group of scientists, including those working in rock mechanics and computer engineering as well as mining engineers. The topics are wide-ranging, including papers on remote sensing to assess primary impact; treatment of sealed-off coal mine fires; sustainable development in mine closure; and monitoring of natural hazards and safety issues.
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Author: Mohammad R. Ehsani | Size: 1.54 MB | Format:PDF | Quality:Scanner | Publisher: Concrete International | Year: 1986 | pages: 5 | ISBN: None
An algorithm is presented for the analysis of rectangular columns subjected to axial loads and uniaxial or biaxial bending; this algorithm is then used to develop a computer program. By shifting and rotating the neutral axis, an exact interaction diagram is developed. An example is included to illustrate the design application of the computer program.
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