Author: L. Javier Malvar
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 60
Get Book Here
Book Description
A smeared crack approach to fracture of concrete in mode I was implemented in the finite element program ADINA. Nonlinear concrete elements with tensile cracking were modified to include tensile strain softening. When an element at an integration point cracks, the stiffness perpendicular to the crack is reduced to zero and the tensile stress across it is set as a function of the crack opening. Equilibrium iterations were implemented to redistribute stress. Two- and three-dimensional models of a single edge notched beam in three-point bending were analyzed and compared to experimental results with good agreement. The analytical representation of mixed mode fracture was also addressed. The mechanisms of shear transfer across a crack were detailed, and the rough crack model, relating shear stress to crack opening, is presented with discussions on orientation of successive crack planes, tensorial invariance, and snap-back phenomena. Problems are identified with modeling bond at the concrete/reinforcement interface and its effect on crack patterns. Keywords: Fracture mechanisms; Crack propagation; Mixed mode; Shear; Bond tension; Softening; Fracture energy; ADINA computer programs. (SDW).
Author: FIB – International Federation for Structural Concrete
Publisher: fib Fédération internationale du béton
ISBN: 0727716964
Category : Technology & Engineering
Languages : en
Pages : 462
Get Book Here
Book Description
This design code for concrete structures is the result of a complete revision to the former Model Code 1978, which was produced jointly by CEB and FIP. The 1978 Model Code has had a considerable impact on the national design codes in many countries. In particular, it has been used extensively for the harmonisation of national design codes and as basic reference for Eurocode 2. The 1990 Model Code provides comprehensive guidance to the scientific and technical developments that have occurred over the past decade in the safety, analysis and design of concrete structures. It has already influenced the codification work that is being carried out both nationally and internationally and will continue so to do.
Author: Thomas Paulay
Publisher: Wiley-Interscience
ISBN: 9780471549154
Category : Technology & Engineering
Languages : en
Pages : 768
Get Book Here
Book Description
Emphasizes actual structural design, not analysis, of multistory buildings for seismic resistance. Strong emphasis is placed on specific detailing requirements for construction. Fundamental design principles are presented to create buildings that respond to a wide range of potential seismic forces, which are illustrated by numerous detailed examples. The discussion includes the design of reinforced concrete ductile frames, structural walls, dual systems, reinforced masonry structures, buildings with restricted ductility and foundation walls. In addition to the examples, full design calculations are given for three prototype structures.
Author: Raymond Ian Gilbert
Publisher: CRC Press
ISBN: 1482288710
Category : Technology & Engineering
Languages : en
Pages : 447
Get Book Here
Book Description
Serviceability failures of concrete structures involving excessive cracking or deflection are relatively common, even in structures that comply with code requirements. This is often as a result of a failure to adequately account for the time-dependent deformations of concrete in the design of the structure. The serviceability provisions embodied in
Author: P. Benson Shing
Publisher: ASCE Publications
ISBN: 9780784474969
Category : Technology & Engineering
Languages : en
Pages : 636
Get Book Here
Book Description
Proceedings of the U.S.?Japan Seminar on Post-Peak Behavior of Reinforced Concrete Structures Subjected to Seismic Loads: Recent Advances and Challenges on Analysis and Design, held in Tokyo and Lake Yamanaka, Japan, October 25-29, 1999. Sponsored by the National Science Foundation, U.S.A.; Japan Society for the Promotion of Science; Japan Concrete Institute. This collection presents the latest ideas and findings on the inelastic behavior of reinforced concrete (RC) structures from the analysis and design standpoints. These papers discuss state-of-the-art concrete material models and analysis methods that can be used to simulate and understand the inelastic behavior of RC structures, as well as design issues that can improve the seismic performance of these structures. Topics include modeling of concrete behavior; modeling of RC structures (finite element approach and macro-element approach); and experimental studies, analysis, and design issues.
Author: Wai-Fah Chen
Publisher: J. Ross Publishing
ISBN: 9781932159745
Category : Technology & Engineering
Languages : en
Pages : 500
Get Book Here
Book Description
J. Ross Publishing Classics are world-renowned texts and monographs written bt preeminent scholars. These books are available to students, researchers, professionals, and libararies.
Author: Yufei Wu
Publisher: Woodhead Publishing
ISBN: 0128232013
Category : Technology & Engineering
Languages : en
Pages : 556
Get Book Here
Book Description
Analytical Approaches for Reinforced Concrete presents mathematically-derived theories and equations for RC design and construction. The book applies deductive reasoning, logic and mathematics to RC. Laying out, deductively, the principles of RC, it encourages researchers to re-imagine and innovate using a solid conceptual framework. Sections consider the reasoning behind key theories, as well as problems that remain unsolved. The title presents key ideas in simple language and illustrates them clearly to help the reader grasp difficult concepts and develop a solid foundation, grounded in mathematics, for further study and research. The book is future-oriented, demonstrating theories that are applicable not only to conventional reinforced concrete members, but also to the envisaged structures of tomorrow. Such developments will increasingly require a deep, deductive understanding of RC. This title is the first of its kind, presenting a fresh analytical approach to reinforced concrete design and construction. - Takes an analytical approach to reinforced concrete using mathematics and deduction - Lays out the reasoning behind key theories and models in reinforced concrete design and construction - Encourages researchers-new and established- to re-imagine and innovate using a solid conceptual framework - Presents difficult concepts that are clearly and analytically presented with accompanying illustrations - Looks forward to the use of reinforced concrete in the complex structures of the future
Author: Harvinder Singh
Publisher: Springer
ISBN: 981102507X
Category : Technology & Engineering
Languages : en
Pages : 181
Get Book Here
Book Description
This book discusses design aspects of steel fiber-reinforced concrete (SFRC) members, including the behavior of the SFRC and its modeling. It also examines the effect of various parameters governing the response of SFRC members in detail. Unlike other publications available in the form of guidelines, which mainly describe design methods based on experimental results, it describes the basic concepts and principles of designing structural members using SFRC as a structural material, predominantly subjected to flexure and shear. Although applications to special structures, such as bridges, retaining walls, tanks and silos are not specifically covered, the fundamental design concepts remain the same and can easily be extended to these elements. It introduces the principles and related theories for predicting the role of steel fibers in reinforcing concrete members concisely and logically, and presents various material models to predict the response of SFRC members in detail. These are then gradually extended to develop an analytical flexural model for the analysis and design of SFRC members. The lack of such a discussion is a major hindrance to the adoption of SFRC as a structural material in routine design practice. This book helps users appraise the role of fiber as reinforcement in concrete members used alone and/or along with conventional rebars. Applications to singly and doubly reinforced beams and slabs are illustrated with examples, using both SFRC and conventional reinforced concrete as a structural material. The influence of the addition of steel fibers on various mechanical properties of the SFRC members is discussed in detail, which is invaluable in helping designers and engineers create optimum designs. Lastly, it describes the generally accepted methods for specifying the steel fibers at the site along with the SFRC mixing methods, storage and transport and explains in detail methods to validate the adopted design. This book is useful to practicing engineers, researchers, and students.
Author: Max.A.N. Hendriks
Publisher: CRC Press
ISBN: 1000442977
Category : Technology & Engineering
Languages : en
Pages : 560
Get Book Here
Book Description
These proceedings present high-level research in structural engineering, concrete mechanics and quasi-brittle materials, including the prime concern of durability requirements and earthquake resistance of structures.
Author: Srinivasan Chandrasekaran
Publisher: CRC Press
ISBN: 1439809151
Category : Technology & Engineering
Languages : en
Pages : 268
Get Book Here
Book Description
Tools to Safeguard New Buildings and Assess Existing OnesNonlinear 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 b
