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Author: Aurello Muttoni
Publisher: Birkhäuser
ISBN: 3034890478
Category : Technology & Engineering
Languages : en
Pages : 150
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Book Description
17 2 STRESS FIELDS FOR SIMPLE STRUCTURES 2. 1 INTRODUCTION In this chapter the behavior and strength of simple structures made of rein forced or prestressed concrete is investigated with the aid of stress fields. In particular, the webs and flanges of beams, simple walls, brackets, bracing beams and joints of frames are investigated. By this means, the majority of design cases are already covered. In reality, all structural components are three-dimensional. Here, however, components are considered either directly as two-dimensional plate elements (i. e. the plane stress condition with no variation of stress over the thickness of the element) or they are subdivided into several plates. Since two-dimensional structural elements are statically redundant, it is pOSSible for a particular loading to be in equilibrium with many (theoretically an infinite number of) stress states. If the lower bound method of the theory of plasticity is employed, then an admissible stress field or any combination of such stress fields may be selected. In chapter 4 it is shown that this method is suitable for the design of reinforced concrete structures, and the consequence of the choice of the final structural system on the structural behavior is dealt with in detail. The first cases of the use of this method date back to Ritter [6] and Morsch [4], who already at the beginning of the century investigated the resultants of the internal stresses by means of truss models.
Author: Aurello Muttoni
Publisher: Birkhäuser
ISBN: 3034890478
Category : Technology & Engineering
Languages : en
Pages : 150
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Book Description
17 2 STRESS FIELDS FOR SIMPLE STRUCTURES 2. 1 INTRODUCTION In this chapter the behavior and strength of simple structures made of rein forced or prestressed concrete is investigated with the aid of stress fields. In particular, the webs and flanges of beams, simple walls, brackets, bracing beams and joints of frames are investigated. By this means, the majority of design cases are already covered. In reality, all structural components are three-dimensional. Here, however, components are considered either directly as two-dimensional plate elements (i. e. the plane stress condition with no variation of stress over the thickness of the element) or they are subdivided into several plates. Since two-dimensional structural elements are statically redundant, it is pOSSible for a particular loading to be in equilibrium with many (theoretically an infinite number of) stress states. If the lower bound method of the theory of plasticity is employed, then an admissible stress field or any combination of such stress fields may be selected. In chapter 4 it is shown that this method is suitable for the design of reinforced concrete structures, and the consequence of the choice of the final structural system on the structural behavior is dealt with in detail. The first cases of the use of this method date back to Ritter [6] and Morsch [4], who already at the beginning of the century investigated the resultants of the internal stresses by means of truss models.
Author: Aurelio Muttoni
Publisher: Birkhauser
ISBN: 9780817654917
Category : Reinforced concrete construction
Languages : en
Pages : 143
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Book Description
Author: Xianglin Gu
Publisher: Springer
ISBN: 3662485656
Category : Technology & Engineering
Languages : en
Pages : 620
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Book Description
Based on the latest version of designing codes both for buildings and bridges (GB50010-2010 and JTG D62-2004), this book starts from steel and concrete materials, whose properties are very important to the mechanical behavior of concrete structural members. Step by step, analysis of reinforced and prestressed concrete members under basic loading types (tension, compression, flexure, shearing and torsion) and environmental actions are introduced. The characteristic of the book that distinguishes it from other textbooks on concrete structures is that more emphasis has been laid on the basic theories of reinforced concrete and the application of the basic theories in design of new structures and analysis of existing structures. Examples and problems in each chapter are carefully designed to cover every important knowledge point. As a basic course for undergraduates majoring in civil engineering, this course is different from either the previously learnt mechanics courses or the design courses to be learnt. Compared with mechanics courses, the basic theories of reinforced concrete structures cannot be solely derived by theoretical analysis. And compared with design courses, this course emphasizes the introduction of basic theories rather than simply being a translation of design specifications. The book will focus on both the theoretical derivations and the engineering practices.
Author: Nilson
Publisher: Wiley
ISBN: 9780471830733
Category :
Languages : en
Pages :
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Book Description
Author: Pierluigi D'Acunto
Publisher: Birkhäuser
ISBN: 3035628890
Category : Architecture
Languages : en
Pages : 224
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Book Description
Most of the embodied energy can be saved in the load-bearing structure! Conceptual Design of Structures is working at the interface between structural engineering, architecture, and art. The book seeks to answer the complex question of what needs to be considered when conceiving a building structure. What influences the process of conceptual thinking? How do space and structure interact? In what ways do architects and engineers work together? The book thus sheds light on the topic of multidisciplinary interrelationships in design, showing numerous different perspectives. Renowned practitioners and researchers from architecture and engineering share their insights, as do artists and historians who cross the disciplinary boundaries. Furthermore, this book also provides an outlook on possible future developments and aspects of sustainable design and construction. Bridging practice, academic, and research Holistic perspectives through contributors from different disciplines Numerous essays, interviews and project reviews provide direct insights Selected works from engineering, architecture, and art
Author: D.A. Hordijk
Publisher: Springer
ISBN: 3319594710
Category : Technology & Engineering
Languages : en
Pages : 2926
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Book Description
This book contains the proceedings of the fib Symposium “High Tech Concrete: Where Technology and Engineering Meet”, that was held in Maastricht, The Netherlands, in June 2017. This annual symposium was organised by the Dutch Concrete Association and the Belgian Concrete Association. Topics addressed include: materials technology, modelling, testing and design, special loadings, safety, reliability and codes, existing concrete structures, durability and life time, sustainability, innovative building concepts, challenging projects and historic concrete, amongst others. The fib (International Federation for Structural Concrete) is a not-for-profit association committed to advancing the technical, economic, aesthetic and environmental performance of concrete structures worldwide.
Author: Zhu Bofang
Publisher: Butterworth-Heinemann
ISBN: 0124078540
Category : Technology & Engineering
Languages : en
Pages : 525
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Book Description
Methods of controlling mass concrete temperatures range from relatively simple to complex and from inexpensive too costly. Depending on a particular situation, it may be advantageous to use one or more methods over others. Based on the author's 50 years of personal experience in designing mass concrete structures, Thermal Stresses and Temperature Control of Mass Concrete provides a clear and rigorous guide to selecting the right techniques to meet project-specific and financial needs. New techniques such as long time superficial thermal insulation, comprehensive temperature control, and MgO self-expansive concrete are introduced. - Methods for calculating the temperature field and thermal stresses in dams, docks, tunnels, and concrete blocks and beams on elastic foundations - Thermal stress computations that take into account the influences of all factors and simulate the process of construction - Analytical methods for determining thermal and mechanical properties of concrete - Formulas for determining water temperature in reservoirs and temperature loading of arched dams - New numerical monitoring methods for mass and semi-mature aged concrete
Author: Chris R Hendy
Publisher: Thomas Telford
ISBN: 9780727731593
Category : Technology & Engineering
Languages : en
Pages : 410
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Book Description
Annotation - Basis of design - Materials - Durability - Structural analysis - Ultimate limit states - Serviceability limit states - Detailing of reinforcement and prestressing tendons - Detailing for members and particular rules - Additional rules for precast concrete structures - Design for the execution stages.
Author: FIB - Féd. Int. du Béton
Publisher: FIB - Féd. Int. du Béton
ISBN: 2883941203
Category : Technology & Engineering
Languages : en
Pages : 145
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Book Description
For a large part of the existing buildings and infrastructure the design life has been reached or will be reached in the near future. These structures might need to be reassessed in order to investigate whether the safety requirements are met. Current practice on the assessment of existing concrete structures however needs a thorough evaluation from a risk and reliability point of view, as they are mostly verified using simplified procedures based on the partial factor method commonly applied in design of new structures. Such assessments are often conservative and may lead to expensive upgrades. Although the last decades reliability-based assessment of existing concrete structures has gained wide attention in the research field, a consistent reliability-based assessment framework and a practically applicable codified approach which is compatible with the Eurocodes and accessible for common structural engineering problems in everyday practice is currently missing. Such an approach however allows for a more uniform, more objective and probably more widely applied assessment approach for existing concrete structures. Hence, in this bulletin two different partial factor formats are elaborated, i.e. the Design Value Method (DVM) and the Adjusted Partial Factor Method (APFM), enabling the incorporation of specific reliability related aspects for existing structures. The DVM proposes a fundamental basis for evaluating partial factors whereas the APFM provides adjustment factors to be applied on the partial factors for new structures in EN 1990. In this bulletin both methods are elaborated and evaluated and a basis is provided for decision making regarding the target safety level of existing structures.
Author: FIB – International Federation for Structural Concrete
Publisher: FIB - Féd. Int. du Béton
ISBN: 8001064018
Category : Technology & Engineering
Languages : en
Pages : 1312
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Book Description
