Failures in Concrete Structures

Author: Robin Whittle
Publisher: CRC Press
ISBN: 0415567017
Format: PDF, Docs
Download Now
Some lessons are only learned from mistakes but, it’s much cheaper to learn from someone else’s mistakes than to have to do so from your own. Drawing on over fifty years of working with concrete structures, Robin Whittle examines the problems which he has seen occur and shows how they could have been avoided. The first and largest part of the book tells the stories of a number of cases where things have gone wrong with concrete structures. Each case is analyzed to identify its cause and how it might have been prevented. It then looks at how failures in structural modelling can lead to big problems if they are not identified before construction is undertaken. Beyond this it examines how contract arrangements can encourage or prevent problems in the designing and building processes. It concludes with an examination of the role research and development in preventing failures. By identifying the differences between shoddy economizations and genuine efficiency savings, this book offers savings in the short term which won’t be at the expense of a structure’s long-term performance. Invaluable reading if you’re designing or building concrete structures and want to avoid problems which could be expensive or embarrassing further down the line.

Influence of Material and Processing on Stress Corrosion Cracking of Prestressing Steel Case Studies

Author: fib Fédération internationale du béton
Publisher: fib Fédération internationale du béton
ISBN: 9782883940666
Format: PDF
Download Now
This report is a review of selected failures in concrete structures in which prestressing steels break in a brittle way due to stress corrosion cracking. Most cases are from the German experience over a period of about 30 years. Analysis of these failures shows that they are often due to an accumulation of causes such as poor design, errors during construction, careless detailing and, in some cases, use of unsuitable materials. This report will have achieved its purpose if it serves to avoid these past errors and encourages the development of new ways to protect, test and regulate prestressing steels. The report is complemented with comments on the properties and corrosion behaviour of different types of prestressing steels. The goal of the study is to provide objective arguments for the discussion of failures that have occurred due to corrosion induced failure of prestressing steel. In such a way the general regulation given in DIN with respect to reinforcement for robustness may eventually be proven inappropriate. The general building authority approval for prestressed hollow filler block floors already supports such an idea. It is well known that the hollow block floor industry works without any reinforcing steel. The regulations in the standards should not limit in particular the use of these types of prestressing steel (cold-formed wires, strands) which have proven not associated with any substantial failures cases reported in the last 35 years. The report reviews the historical development with respect to corrosion induced failure of prestressing steel. Concerning the circumstances of the failure examples, this review partly reflects a specific problem in Germany. Also reviewed are other known interregional examples of failure which are incorrectly attributed to the prestressed construction method. All cases considered are discussed and the failure reasons thoroughly evaluated, also with reference to the results of most recent research. Another question addressed is whether one should be concerned over corrosion induced retarded failure even when using new generation prestressing steel with correct corrosion protection. Finally a contribution to the following very important question is presented: Do the future prestressed structures possess enough safety against structural failure if they are constructed without reinforcement for robustness but otherwise comply completely with the design standards? To aid a better understanding of this short report on typical failure cases and their origins, the main conditions are set out for corrosion-induced failure of prestressing steel in technical applications. The properties of different types of prestressing steel and their application limits are given in a special section dealing with the influence of building materials on damage development. This report will be of interest to all involved in the construction process. Fundamental scientific discussion has been avoided by reference to well accredited detailed information in the technical literature.

Concrete Durability and Repair Technology

Author: Ravindra K. Dhir
Publisher: Thomas Telford
ISBN: 9780727728265
Format: PDF, ePub, Mobi
Download Now
Concrete will be the key material for Mankind to create the built environment of the next millennium. The requirements of this infrastructure will be both demanding, in terms of technical performance and economy, and yet be greatly varied, from architectural masterpieces to the simplest of utilities.Concrete durability and repair technology forms the Proceedings of the three day International Conference held during the Congress, Creating with Concrete, 6-10 September 1999, organised by the Concrete technology Unit, University of Dundee.

Construction Failure

Author: Jacob Feld
Publisher: John Wiley & Sons
ISBN: 9780471574774
Format: PDF, ePub
Download Now
First published in 1968, Jacob Feld′s Construction Failure has long been considered the classic text on the subject. Retaining all of the key components of Feld′s comprehensive exploration of the root causes of failure, this Second Edition addresses a multitude of important industry developments to bring this landmark work up to date for a new generation of engineers, architects, and students. In addition to detailed coverage of current design tools, techniques, materials, and construction methods, Construction Failure, Second Edition features an entire chapter on the burgeoning area of construction litigation, including a thorough examination of alternative dispute resolution techniques. Like the original, this edition discusses technical and procedural failures of many different types of structures, but is now supplemented with new case studies to illustrate the dynamics of failure in action today. Jacob Feld knew thirty years ago that in order to learn from our mistakes, we must first acknowledge and understand them. With this revised volume, Kenneth Carper has ensured that Feld′s now–posthumous message will continue to be heard for years to come. Jacob Feld′s comprehensive work on failure analysis has now been skillfully amended to address current design and construction tools, materials, and practices. Building on the first edition′s peerless examination of the causes and lessons of failure, Construction Failure, Second Edition provides you with expanded coverage of: ∗ Technical, procedural, structural, and nonstructural failures ∗ Natural hazards, earthworks, soil and foundation problems, and more ∗ Reinforced, precast and prestressed concrete, steel, timber, masonry, and other materials ∗ Responsibility and litigation concerns, dispute avoidance, and alternative dispute resolution techniques ∗ Construction safety issues ∗ Many different types of structures, including dams and bridges Construction Failure has as much to teach us today as it did thirty years ago. This revised volume is an essential resource for design engineers, architects, construction managers, lawyers, and students in all of these fields.

Failure Analysis Case Studies II

Author: David R. H. Jones
Publisher: Elsevier
ISBN: 9780080439594
Format: PDF, ePub, Docs
Download Now
The first book of Failure Analysis Case Studies selected from volumes 1, 2 and 3 of the journal Engineering Failure Analysis was published by Elsevier Science in September 1998. The book has proved to be a sought-after and widely used source of reference material to help people avoid or analyse engineering failures, design and manufacture for greater safety and economy, and assess operating, maintenance and fitness-for-purpose procedures. In the last three years, Engineering Failure Analysis has continued to build on its early success as an essential medium for the publication of failure analysis cases studies and papers on the structure, properties and behaviour of engineering materials as applied to real problems in structures, components and design. Failure Analysis Case Studies II comprises 40 case studies describing the analysis of real engineering failures which have been selected from volumes 4, 5 and 6 of Engineering Failure Analysis. The case studies have been arranged in sections according to the specific type of failure mechanism involved. The failure mechanisms covered are overload, creep, brittle fracture, fatigue, environmental attack, environmentally assisted cracking and bearing failures. The book constitutes a reference set of real failure investigations which should be useful to professionals and students in most branches of engineering.

Inspection and Maintenance of Reinforced and Prestressed Concrete Structures

Author:
Publisher: Thomas Telford
ISBN: 9780727702616
Format: PDF, ePub
Download Now
The vast extent of the investment in concrete structures in modern times has emphasized the need to maintain these structures in a systematic manner, so that they retain their structural integrity and full usefulness. Such maintenance must be preceded by regular and thorough inspection. This Guide to Good Practice describes the many types of damage - slight or more serious - which may be discovered and the equipment used to carry out inspections. Suggested inspection intervals, related to the severity of loadings and environmental conditions, are given.

The Detective s Handbook

Author: John A. Eterno
Publisher: CRC Press
ISBN: 1138026522
Format: PDF, ePub, Mobi
Download Now
The Detective’s Handbook details the vital information law enforcement officers need to know to become better detectives. Since all essential aspects of detective work cannot be covered in a single volume, the editors have selected 20 of the most critical issues detectives face in their day-to-day work and present them in separate chapters. Using a unique format and style, this essential handbook draws on the expertise of contributors with police and academic backgrounds to provide both new and seasoned detectives with invaluable insights. It covers a wide range of detective procedures and practices employed in the United States and can be read as a whole or used as a reference for conducting various types of investigations and interrogations. The book highlights common mistakes and outlines best practices to help readers avoid making the same mistakes in the field. It provides the tools and understanding to conduct the range of investigations that today’s detectives will most likely have to conduct, including those involving sexual predators, healthcare and financial fraud, cyber crime, gangs, cults, personal violence, and property. The text concludes with a section on all-purpose practices and lessons for investigations. In this section, readers will learn the practical aspects of interviewing and interrogating witnesses, including how to interview and communicate with special populations, such as those with mental and physical disabilities. Sharing the most effective investigative practices and procedures in use today, this book is a must-have for police, sheriffs, and other government agencies that are responsible for protecting the public.

Repair of Concrete Bridges

Author: G. P. Mallett
Publisher: Thomas Telford
ISBN: 9780727720078
Format: PDF
Download Now
Repair of concrete bridges has been compiled by the Transport Research Laboratory (TRL) to summarize this wealth of information - conference papers, research and technical reports, national press coverage and the accumulated experience of engineers and researchers in the field - to provide a state of the art review of the repair, maintenance and protection of concrete bridges.