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Author: Chong Yik Melvin Goh Publisher: ISBN: Category : Languages : en Pages : 490
Book Description
Most reinforced concrete (RC) design provisions have been developed on the basis of experimental data involving isolated and highly-idealized structural elements. As a result, many of the RC-related design provisions currently used are unsuitable for providing accurate assessments of RC structural systems. Thus, there is a need for practical modeling procedures that can be used to reliably investigate the performance of real-world RC structures. Such tools can aid in the assessment of structures that are exhibiting distress, that employ atypical or code-deficient design details, are in need of retrofit or modification, or simply are of a type that fall outside of traditional design provisions. This dissertation presents the development and application of nonlinear finite element analysis procedures employing cracked concrete material modeling based on the formulations of the Disturbed Stress Field Model (DSFM). These procedures are used to investigate the punching shear performance of RC flat plates, an area where design is typically done in a highly-idealized manner; yet, structure performance may be greatly impacted by system-level response. Nonlinear finite element modeling was done using two approaches. Three-dimensional solid continuum modeling was found to provide good response estimates for slab-column connection specimens under concentric shear loading and effectively captured the effects of different parameters on punching performance: reinforcement ratio, column size, and slab thickness. The validated solid modeling procedure was used to perform a parametric study on the influence of boundary conditions on the response of multi-bay flat plate structures. The findings indicated that RC slab systems are likely to have load capacities that are greater than that inferred from isolated connection elements. Alternatively, RC slab modeling was also done using computationally-efficient layered shell finite elements that accommodate through-thickness shearing effects. A simple sectional analysis modification procedure was used to incorporate strength enhancements within slab disturbed regions and the proposed procedure was shown to be capable of providing reasonable estimates for the punching shear strength of RC slab-column connections and slab subsystems. Predicted load-displacement curves and failure modes were in reasonable agreement with test data and provided estimates that were similar to those obtained using costlier solid modeling techniques
Author: Chong Yik Melvin Goh Publisher: ISBN: Category : Languages : en Pages : 490
Book Description
Most reinforced concrete (RC) design provisions have been developed on the basis of experimental data involving isolated and highly-idealized structural elements. As a result, many of the RC-related design provisions currently used are unsuitable for providing accurate assessments of RC structural systems. Thus, there is a need for practical modeling procedures that can be used to reliably investigate the performance of real-world RC structures. Such tools can aid in the assessment of structures that are exhibiting distress, that employ atypical or code-deficient design details, are in need of retrofit or modification, or simply are of a type that fall outside of traditional design provisions. This dissertation presents the development and application of nonlinear finite element analysis procedures employing cracked concrete material modeling based on the formulations of the Disturbed Stress Field Model (DSFM). These procedures are used to investigate the punching shear performance of RC flat plates, an area where design is typically done in a highly-idealized manner; yet, structure performance may be greatly impacted by system-level response. Nonlinear finite element modeling was done using two approaches. Three-dimensional solid continuum modeling was found to provide good response estimates for slab-column connection specimens under concentric shear loading and effectively captured the effects of different parameters on punching performance: reinforcement ratio, column size, and slab thickness. The validated solid modeling procedure was used to perform a parametric study on the influence of boundary conditions on the response of multi-bay flat plate structures. The findings indicated that RC slab systems are likely to have load capacities that are greater than that inferred from isolated connection elements. Alternatively, RC slab modeling was also done using computationally-efficient layered shell finite elements that accommodate through-thickness shearing effects. A simple sectional analysis modification procedure was used to incorporate strength enhancements within slab disturbed regions and the proposed procedure was shown to be capable of providing reasonable estimates for the punching shear strength of RC slab-column connections and slab subsystems. Predicted load-displacement curves and failure modes were in reasonable agreement with test data and provided estimates that were similar to those obtained using costlier solid modeling techniques
Author: fib Fédération internationale du béton Publisher: fib Fédération internationale du béton ISBN: 2883940851 Category : Technology & Engineering Languages : en Pages : 3
Book Description
Non-linear computer analysis methods have seen remarkable advancement in the last half-century. The state-of-the-art in non-linear finite element analysis of reinforced concrete has progressed to the point where such procedures are close to being practical, every-day tools for design office engineers. Non-linear computer analysis procedures can be used to provide reliable assessments of the strength and integrity of damaged or deteriorated structures, or of structures built to previous codes, standards or practices deemed to be deficient today. They can serve as valuable tools in assessing the expected behaviour from retrofitted structures, or in investigating and rationally selecting amongst various repair alternatives. fib Bulletin 45 provides an overview of current concepts and techniques relating to computer-based finite element modelling of structural concrete. It summarises the basic knowledge required for use of nonlinear analysis methods as applied to practical design, construction and maintenance of concrete structures, and attempts to provide a diverse and balanced portrayal of the current technical knowledge, recognizing that there are often competing and conflicting viewpoints. This report does not give advice on picking one model over another but, rather, provides guidance to designers on how to use existing and future models as tools in design practice, in benchmarking of their models against established and reliable test data and in selecting an appropriate safety factor as well as recognising various pitfalls. fib Bulletin 45 is intended for practicing engineers, and therefore focuses more on practical application and less on the subtleties of constitutive modelling.
Author: James B. Deaton Publisher: ISBN: Category : Concrete slabs Languages : en Pages :
Book Description
The objective of this study was the development of a procedure in GT STRUDL to design reinforced concrete flat plate systems based on the results of finite element analysis. The current state-of-practice of reinforced concrete flat plate design was reviewed, including the ACI direct design and equivalent frame techniques, the yield line method, and the strip design method. The principles of these methods along with a critical evaluation of their applicability and limitations were presented as motivation for a finite element based design procedure. Additionally, the current state-of-the-art of flat plate design based on finite element results was presented, along with various flat plate modeling techniques. Design methodologies studied included the Wood and Armer approach, based on element stress resultants, and the resultant force approach, based on element forces. A flat plate design procedure based on the element force approach was embodied in the DESIGN SLAB command, which was implemented in GT STRUDL. The DESIGN SLAB command provides the user the ability to design a slab section by specifying a cut definition and several optional design parameters. The procedure determines all nodes and elements along the cut, computes the resultant moment design envelope acting on the cross-section, and designs the slab for flexure in accordance with provisions of ACI 318-02. Design examples presented include single-panel flat plate systems with various support conditions as well as multi-panel systems with regular and irregular column spacing. These examples allowed for critical comparison with results from experimental studies and currently applied design methods in order to determine the applicability of the implemented procedure. The DESIGN SLAB command was shown to produce design moments in agreement with experimental data as well as conventional design techniques for regular configurations. The examples additionally showed that when cuts were not oriented orthogonally to the directions of principle bending, resulting designs based on element forces could significantly under-reinforce the cross-section due to significant torsional effects.
Author: Robert Park Publisher: John Wiley & Sons ISBN: 9780471348504 Category : Technology & Engineering Languages : en Pages : 736
Book Description
Unter "bewehrtem Beton" versteht man eine Kombination von Beton mit anderen, verstärkenden Materialien (meist Stahl). Aus Stahlbetonplatten werden nicht nur Häuser gebaut, sondern auch Straßen und Mauern. Bauingenieure müssen die Merkmale und Einsatzfelder dieser Werkstoffe kennen und Belastungsgrenzen abschätzen. Dieses Buch, das einzige seiner Art, dient Praktikern und Studenten der Bautechnik als kompetenter Begleiter. (01/00)
Author: C.E. Reynolds Publisher: CRC Press ISBN: 1482288958 Category : Architecture Languages : en Pages : 320
Book Description
The latest edition of this well-known book makes available to structural design engineers a wealth of practical advice on effective design of concrete structures. It covers the complete range of concrete elements and includes numerous data sheets, charts and examples to help the designer. It is fully updated in line with the relevant British Standards and Codes of Practice.
Author: Svetlana Brzev Publisher: ISBN: 9781256873846 Category : Technology & Engineering Languages : en Pages : 966
Book Description
Reinforced Concrete Design: A Practical Approach, 2E is the only Canadian textbook which covers the design of reinforced concrete structural members in accordance with the CSA Standard A23.3-04 Design of Concrete Structures, including its 2005, 2007, and 2009 amendments, and the National Building Code of Canada 2010. Reinforced Concrete Design: A Practical Approach covers key topics for curriculum of undergraduate reinforced concrete design courses, and it is a useful learning resource for the students and a practical reference for design engineers. Since its original release in 2005 the book has been well received by readers from Canadian universities, colleges, and design offices. The authors have been commended for a simple and practical approach to the subject by students and course instructors. The book contains numerous design examples solved in a step-by-step format. The second edition is going to be available exclusively in hard cover version, and colours have been used to embellish the content and illustrations. This edition contains a new chapter on the design of two-way slabs and numerous revisions of the original manuscript. Design of two-way slabs is a challenging topic for engineering students and young engineers. The authors have made an effort to give a practical design perspective to this topic, and have focused on analysis and design approaches that are widely used in structural engineering practice. The topics include design of two-way slabs for flexure, shear, and deflection control. Comprehensive revisions were made to Chapter 4 to reflect the changes contained in the 2009 amendment to CSA A23.3-04. Chapters 6 and 7 have been revised to correct an oversight related to the transverse reinforcement spacing requirements in the previous edition of the book. Chapter 8 includes a new design example on slender columns and a few additional problems. Several errors and omissions (both text and illustrations) have also been corrected. More than 300 pages of the original book have been revised in this edition. Several supplements are included on the book web site. Readers will get time-limited access to the new column design software BPA COLUMN, which can generate column interaction diagrams for rectangular and cicrcular columns of variable dimensions and reinforcement amount. Additional supplements include spreadsheets related to foundation design and column load take down, and a few Power Point presentations showcasing reinforced concrete structures under construction and in completed form. Instructors will have an access to additional web site, which contains electronic version of the Instructor's Solution Manual with complete solutions to the end-of-chapter problems, and Power Point presentations containing all illustrations from the book. The book is a collaborative effort between an academic and a practising engineer and reflects their unique perspectives on the subject. Svetlana Brzev, Ph.D., P.Eng. is a faculty at the Civil Engineering Department of the British Columbia Institute of Technology, Burnaby, BC. She has over 25 years of combined teaching, research, and consulting experience related to structural design and rehabilitation of concrete and masonry structures, including buildings, municipal, and industrial facilities. John Pao, MEng, PEng, Struct.Eng, is the President of Bogdonov Pao Associates Ltd. of Vancouver, BC, and BPA Group of Companies with offices in Seattle and Los Angeles. Mr. Pao has extensive consulting experience related to design of reinforced concrete buildings, including high-rise residential and office buildings, shopping centers, parking garages, and institutional buildings.
Author: C.E. Reynolds Publisher: CRC Press ISBN: 0419170006 Category : Architecture Languages : en Pages : 320
Book Description
The latest edition of this well-known book makes available to structural design engineers a wealth of practical advice on effective design of concrete structures. It covers the complete range of concrete elements and includes numerous data sheets, charts and examples to help the designer. It is fully updated in line with the relevant British Standards and Codes of Practice.
Author: David D. E. E. Fanella Publisher: McGraw Hill Professional ISBN: 0071638350 Category : Technology & Engineering Languages : en Pages : 652
Book Description
A PRACTICAL GUIDE TO REINFORCED CONCRETE STRUCTURE ANALYSIS AND DESIGN Reinforced Concrete Structures explains the underlying principles of reinforced concrete design and covers the analysis, design, and detailing requirements in the 2008 American Concrete Institute (ACI) Building Code Requirements for Structural Concrete and Commentary and the 2009 International Code Council (ICC) International Building Code (IBC). This authoritative resource discusses reinforced concrete members and provides techniques for sizing the cross section, calculating the required amount of reinforcement, and detailing the reinforcement. Design procedures and flowcharts guide you through code requirements, and worked-out examples demonstrate the proper application of the design provisions. COVERAGE INCLUDES: Mechanics of reinforced concrete Material properties of concrete and reinforcing steel Considerations for analysis and design of reinforced concrete structures Requirements for strength and serviceability Principles of the strength design method Design and detailing requirements for beams, one-way slabs, two-way slabs, columns, walls, and foundations
Author: A. Allen Publisher: CRC Press ISBN: 1482288869 Category : Architecture Languages : en Pages : 256
Book Description
This highly successful book describes the background to the design principles, methods and procedures required in the design process for reinforced concrete structures. The easy to follow style makes it an ideal reference for students and professionals alike.
Author: Chong Yik Melvin Goh
Author: Chong Yik Melvin Goh
Author: fib Fédération internationale du béton
Author: James B. Deaton
Author: Robert Park
Author: C.E. Reynolds
Author: 
Author: Svetlana Brzev
Author: C.E. Reynolds
Author: David D. E. E. Fanella
Author: A. Allen