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Collapse Load Analysis of Prestressed Concrete Structures

Author: Koon-Wan Wong

Publisher:

Published: 1998

Total Pages: 21

ISBN-13: 9780863966286

This research report describes a non-linear method of analysing pre-stressed concrete structures at working load and at collapse. Gives a brief overview of various methods of analysis used for indeterminate, pre-stressed concrete structures and provides information about topics such as hyperstatic reactions and secondary moments due to pre-stress. Warner is a professor and Wong is a research fellow in the department of civil and environmental engineering at the University of Adelaide.

Structural Concrete

Author: J. D. Davies

Publisher: Elsevier

Published: 2014-06-05

Total Pages: 175

ISBN-13: 1483185206

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Structural Concrete examines the behavior of reinforced and prestressed concrete structures under working load and ultimate load conditions. This eight-chapter text deals first with the analysis of concrete structures as a particular branch of structural mechanics. Other chapters explore the empirical methods and the practical design and detailing procedures. Considerable chapters describe the mechanical behavior of structural concrete, with a particular emphasis on the elastic behavior. The final chapters examine the behavior of continuous beams, frames, and slabs. These chapters also look into the models for structural concrete. This book is intended primarily to undergraduate civil engineering students.

Collapse analysis of externally prestressed structures

Author: Jens Tandler

Publisher: diplom.de

Published: 2014-04-11

Total Pages: 153

ISBN-13: 3836623331

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Inhaltsangabe:Introduction: This dissertation is an investigation into the behaviour of externally prestressed structures, focusing on bridge box girders, at the ultimate limit state. The main objective is the ductility and the tendon stress increase up to failure of externally prestressed structures. Their behaviour will be compared to internally prestressed structures. The dissertation may have valuable information for the first stages of the design process for medium span bridges as the study is concerned about the overall safety and efficiency of prestressed concrete bridges by the means of ductility. The aim is also to provide information about the tendon stress at failure, which is required for the detailed design. Inhaltsverzeichnis:Inhaltsverzeichnis: AcknowledgementsVIII NotationIX 1.Introduction1 1.1Definitions1 1.2Significance of this study3 1.3Scope of the project5 1.4Historical overview and typical characteristics of external prestressing6 1.5Further structural applications of external prestressing9 2.Behaviour of externally prestressed structures10 2.1Tendon layout considerations10 2.2Behaviour at serviceability stage12 2.3Fatigue problems14 2.4Behaviour at ultimate limit stage14 2.4.1Influence of tendon slip on the ultimate limit state18 2.4.2Influence of the arrangement of the deviators on the behaviour at ultimate limit state19 2.4.3Influence of simply support and continuous support on the ultimate limit state20 2.4.4Precast segmental and monolithic bridges21 3.Collapse analysis23 3.1Investigated bridge types and their differences23 3.2Original bridge data28 3.3Simplified bridge data as basis for the calculations30 3.4FE Calculation32 3.4.1Technical aspects33 3.4.2General approach34 3.4.3Geometric model39 3.4.4Element specifications40 3.4.5Constitutive models45 3.4.6Ordinary reinforcement59 3.4.7Prestress60 3.4.8Material and geometric non-linearity63 3.4.9Kinematic constraints66 3.4.10Discrete crack propagation analysis of the precast segmental type with gap elements68 3.4.11Summary of the dividing features of the different structure types for the FE analysis72 4.Results73 4.1Load deflection behaviour73 4.2Tendon stress increase up to failure76 4.3Other results78 5.Discussion of the results85 5.1Interpretation of the results85 5.2Discussion of the exactness of the FE calculations by comparing to the full scale test89 5.3Comparison to other FE calculations and test results93 6.Conclusion and [...]

Abnormal Loading on Buildings and Progressive Collapse

Author:

Publisher:

Published: 1976

Total Pages: 76

ISBN-13:

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Prestressed Concrete Design, Second Edition

Author: M.K. Hurst

Publisher: CRC Press

Published: 2002-12-24

Total Pages: 271

ISBN-13: 0203476840

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Prestressed concrete is widely used in the construction industry in buildings, bridges, and other structures. The new edition of this book provides up-to-date guidance on the detailed design of prestressed concrete structures according to the provisions of the latest preliminary version of Eurocode 2: Design of Concrete Structures, DD ENV 1992-1-1: 1992. The emphasis throughout is on design - the problem of providing a structure to fulfil a given purpose - but fundamental concepts are also described in detail. All major topics are dealt with, including prestressed flat slabs, an important and growing application in the design of buildings. The text is illustrated throughout with worked examples and problems for further study. Examples are given of computer spreadsheets for typical design calculations. Prestressed Concrete Design will be a valuable guide to practising engineers, students and research workers.

Reinforced and Prestressed Concrete Design to EC2

Author: Eugene Obrien

Publisher: CRC Press

Published: 2017-09-01

Total Pages: 802

ISBN-13: 1351988484

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Concrete is an integral part of twenty-first century structural engineering, and an understanding of how to analyze and design concrete structures is a vital part of training as a structural engineer. With Eurocode legislation increasingly replacing British Standards, it’s also important to know how this affects the way you can work with concrete. Newly revised to Eurocode 2, this second edition retains the original’s emphasis on qualitative understanding of the overall behaviour of concrete structures. Now expanded, with a new chapter dedicated to case studies, worked examples, and exercise examples, it is an even more comprehensive guide to conceptual design, analysis, and detailed design of concrete structures. The book provides civil and structural engineering students with complete coverage of the analysis and design of reinforced and prestressed concrete structures. Great emphasis is placed on developing a qualitative understanding of the overall behaviour of structures.

Behaviour of Building Structures Subjected to Progressive Collapse

Author: Bo Yang

Publisher: Woodhead Publishing

Published: 2022-02-18

Total Pages: 390

ISBN-13: 0128222689

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Behaviour of Building Structures Subjected to Progressive Collapse gives in-depth and up-to-date quantitative and numerical analysis of building structures against progressive collapse. It does so at various levels, including bare steel joints, composite joints and sub-assemblages and frames under quasi-static loading conditions. The book provides analysis of the force transfer mechanisms of composite structures and reinforced concrete structures, along with detailed numerical models that shed light on the effects of critical parameters on progressive collapse resistances. It includes direct design methods that take into account various collapse-resisting mechanisms. The collapse of the World Trade Center in New York has spurred extensive experimental study and numerical analysis of the structural behavior of buildings under progressive collapse scenarios. Although design guidelines have been published by governments, most are missing up-to-date numerical and experimental results, quantitative accounts of force transfer mechanisms, and numerical guidelines. Offers in-depth analysis and numerical modeling for building structures against progressive collapse Provides analysis of the force-transfer mechanisms of composite and reinforced concrete structures Gives detailed numerical models that shed light on the effects of critical parameters on progressive resistances Includes direct design methods that take into account various collapse resisting mechanisms Offers a comprehensive reference for progressive collapse analysis and the design of building structures

Prestressed Concrete

Author: N. Rajagopalan

Publisher: Alpha Science Int'l Ltd.

Published: 2005

Total Pages: 512

ISBN-13: 9781842652121

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This book deals fundamentally with the basic philosophy, principles and the application of prestressing in structural elements. It also covers the detailed engineering of the structural elements with prestressing forces in terms of analysis and design. Different systems of prestressing, losses in prestressing and evaluation of capacity of prestressed concrete sections in flexure, shear and torsion, the force flow due to prestressing at anchorage zones, the time dependent effects due to creep and shrinkage of materials are explained. The design of prestressed concrete elements is covered with a holistic concept. In case of indeterminate structures, the effect of prestressing while satisfying the compatibility conditions has been clearly explained. The necessary philosophy and the design procedures of partially prestressed elements have been specifically dealt with. Accepted National and International Code provisions for design of prestressed concrete elements under the effect of the various loads have been elaborately discussed with worked out examples.

Serviceability Limit State of Concrete Structures

Author: FIB – International Federation for Structural Concrete

Publisher: FIB - International Federation for Structural Concrete

Published: 2019-09-01

Total Pages: 219

ISBN-13: 2883941351

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Serviceability limit states are essential for appropriate function and durability of concrete structures. The attention is paid especially to the stress limitation, crack width analysis and deflection analysis. The document provides supplementary information to the fib Model Code 2010 (MC2010), where a limited space did not allow for a detailed description of individual procedures. The principles used in MC2010 in chapter 7.6 are explained in detail within this document. The stress analysis is focused on stresses in concrete and steel including the stress redistribution due to the long-term load and cracking of reinforced concrete and prestressed concrete elements. Crack width analysis explains the mechanism of cracking under mechanical loading and due to deformation restraint. Cracks in prestressed concrete elements are also discussed. Deflection analyses with different levels of accuracy are described including the shear effects. Examples illustrate the practical application of rules defined in the MC2010 of individual serviceability limit states. Simplified and more general methods are used. An important part of the bulletin shows the development and extension of the serviceability limit states after publishing of the MC2010 and alternative approaches. Special attention is paid to deflections of prestressed concrete beams, shear effects on deflection, slenderness limits and influence of the concrete cover. The final part deals with an application of numerical simulations.

Reinforced Concrete Structure

Author: IC Syal | AK Goel

Publisher: S. Chand Publishing

Published: 2008

Total Pages: 743

ISBN-13: 8121923530

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It has been gratifying to find the earlier editions of the book read and used in so many parts of the country.The new edition oews much to the useful comments and suggestions of the teachers,students and the practising engineers to whom the express their grateful thanks.A new chapter on Prestressed Concrete has been added to the new edition.In particular,the chapter disscusses various aspects of prestressing,like types of prestressing,various methods of prestressing,materials used,losses in prestress,layout of cable profiles,analysis and methods of design of various elements and the detailed analysis and design of end Block.