Design of Concrete Structures with Stress Fields

Design of Concrete Structures with Stress Fields

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.

Author: Aurello Muttoni

Publisher: Birkhäuser

ISBN: 9783034890472

Category: Technology & Engineering

Page: 146

View: 715

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.
Categories: Technology & Engineering

Design of Concrete Structures with Stress Fields

Design of Concrete Structures with Stress Fields

The book presents a unified approach to the design and detailing of reinforced and prestressed concrete structures.

Author: Aurelio Muttoni

Publisher: Birkhauser

ISBN: 0817654917

Category: Reinforced concrete construction

Page: 143

View: 206

Categories: Reinforced concrete construction

High Tech Concrete Where Technology and Engineering Meet

High Tech Concrete  Where Technology and Engineering Meet

In the building industry today, the most common approaches for structural analysis and design of discontinuity regions are ... (1996) presented “Design of Concrete Structures with Stress Fields” where they proposed a general method for ...

Author: D.A. Hordijk

Publisher: Springer

ISBN: 9783319594712

Category: Technology & Engineering

Page: 2859

View: 222

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.
Categories: Technology & Engineering

Shear and Punching Shear in RC and FRC Elements

Shear and Punching Shear in RC and FRC Elements

Shear and Torsion Design of Prestressed and NonPrestressed Concrete Beams. ... EN 1992-1-1: Design of concrete structures - Part 1, General rules and rules for buildings. ... Stress Field Analysis of Structural Concrete Beams.

Author: fib Fédération internationale du béton

Publisher: fib Fédération internationale du béton

ISBN: 9782883940970

Category: Technology & Engineering

Page: 268

View: 896

fib Bulletin 57 is a collection of contributions from a workshop on "Recent developments on shear and punching shear in RC and FRC elements", held in Salò, Italy, in October 2010. Shear is one of a few areas of research into fundamentals of the behaviour of concrete structures where contention remains amongst researchers. There is a continuing debate between researchers from a structures perspective and those from a materials or fracture mechanics perspective about the mechanisms that enable the force flow through a concrete member and across cracks. In 2009, a Working Group was formed within fib Task Group 4.2 "Ultimate Limit State Models" to harmonise different ideas about design procedures for shear and punching. An important outcome of this work was the ensuing discussions between experts and practitioners regarding the shear and punching provisions of the draft fib Model Code, which led to the organization of the Salò workshop. Invited experts in the field of shear and FRC gave 18 lectures at the workshop that was attended by 72 participants from 12 countries in 3 different continents. The contributions from this conference as compiled in this bulletin are believed to represent the best of the current state of knowledge. They certainly are of general interest to fib members and especially helpful in the finalization of the 2010 fibModel Code. It is hoped that this publication will stimulate further research in the field, to refine and harmonize the available analytical models and tools for shear and punching design.
Categories: Technology & Engineering

Design Examples for Strut and tie Models

Design Examples for Strut and tie Models

Berlin, August 2008 EC 2, Part 1-1 (2005): Eurocode 2: Design of concrete structures. Part 1.1: General rules and rules ... Dec., 60-63 Kostic, N. (2006): Computer-Based Development of Stress Fields. 6th International PhD Symposium in ...

Author: fib Fédération internationale du béton

Publisher: fib Fédération internationale du béton

ISBN: 9782883941014

Category: Technology & Engineering

Page: 220

View: 616

fib Bulletin 61 is a continuation of fib Bulletin 16 (2002). Again the bulletin’s main objective is to demonstrate the application of the FIP Recommendations “Practical Design of Structural Concrete”, and especially to illustrate the use of strut-and-tie models to design discontinuity regions (D-regions) in concrete structures. Bulletin 61 presents 14 examples, most of which are existing structures built in recent years. Although some of the presented structures can be considered to be quite important and, in some instances, complex, the chosen examples are not intended to be exceptional. The main aim is to look at specific design aspects, by selecting D-regions of the presented structures that are designed and detailed according to the proposed design principles and specifications for the use of strut-and-tie models. Two papers at the end of the bulletin deal with the role of concrete tension fields in modelling with strut-and-tie models, and summarize the experiences gained by the Working Group in applying strut-and-tie models to the examples in the bulletin. It is hoped that fib Bulletin 61 will be of interest to engineers involved in the design of concrete structures, supporting the use of more consistent design and detailing tools such as strut-and-tie models.
Categories: Technology & Engineering

Partial factor methods for existing concrete structures

Partial factor methods for existing concrete structures

Melchers, R. (2001), Structural Reliability Analysis and Prediction. 2nd ed. Wiley, Chichester, UK. Muttoni, A.; Schwatz, J. & Thürlimann, B. (1997), Design of Concrete Structures with Stress Fields. Birkhäuser, Basel, Switzerland.

Author: FIB - Féd. Int. du Béton

Publisher: FIB - Féd. Int. du Béton

ISBN: 9782883941205

Category: Technology & Engineering

Page: 258

View: 339

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.
Categories: Technology & Engineering

12th PhD Symposium in Prague Czech Rep

12th PhD Symposium in Prague Czech Rep

FIB – International Federation for Structural Concrete ... (could make research established stress more their the instead the the optimization statics corresponding fields. of useful ... Design of Concrete Structures with Stress Fields.

Author: FIB – International Federation for Structural Concrete

Publisher: FIB - Féd. Int. du Béton

ISBN: 9788001064016

Category: Technology & Engineering

Page: 1312

View: 447

Categories: Technology & Engineering

Applied Mechanics Reviews

Applied Mechanics Reviews

The stress field is represented as sum of elastic bending moments and residual moments calculated from assumed set of ... seems promising in generating automated design procedures for steel and reinforced concrete structures .

Author:

Publisher:

ISBN: UCAL:C2682442

Category: Mechanics, Applied

Page: 528

View: 350

Categories: Mechanics, Applied

Vibration Problems in Structures

Vibration Problems in Structures

Design of Concrete Structures with Stress Fields 1996. 162 Pages. Hardcover ISBN 3-7643–5491-7 Available also in German Bemessung von Betontragwerken mit Spannungsfeldern 1996. 158 Seiten. Gebunden ISBN 3-7643–5492-5 The book presents a ...

Author: Hugo Bachmann

Publisher: Birkhäuser

ISBN: 9783034892315

Category: Technology & Engineering

Page: 237

View: 829

Authors: Hugo Bachmann, Walter J. Ammann, Florian Deischl, Josef Eisenmann, Ingomar Floegl, Gerhard H. Hirsch, Günter K. Klein, Göran J. Lande, Oskar Mahrenholtz, Hans G. Natke, Hans Nussbaumer, Anthony J. Pretlove, Johann H. Rainer, Ernst-Ulrich Saemann, Lorenz Steinbeisser. Large structures such as factories, gymnasia, concert halls, bridges, towers, masts and chimneys can be detrimentally affected by vibrations. These vibrations can cause either serviceability problems, severely hampering the user's comfort, or safety problems. The aim of this book is to provide structural and civil engineers working in construction and environmental engineering with practical guidelines for counteracting vibration problems. Dynamic actions are considered from the following sources of vibration: - human body motions, - rotating, oscillating and impacting machines, - wind flow, - road traffic, railway traffic and construction work. The main section of the book presents tools that aid in decision-making and in deriving simple solutions to cases of frequently occurring "normal" vibration problems. Complexer problems and more advanced solutions are also considered. In all cases these guidelines should enable the engineer to decide on appropriate solutions expeditiously. The appendices of the book contain fundamentals essential to the main chapters.
Categories: Technology & Engineering