Author: Roberto Torrent
Publisher: RILEM Publications
ISBN: 2351580540
Category : Concrete
Languages : en
Pages : 247

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Book Description

Author: fib Fédération internationale du béton
Publisher: fib Fédération internationale du béton
ISBN: 2883940819
Category : Technology & Engineering
Languages : en
Pages : 74

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Book Description
fib Bulletin 41 addresses the most common types of imperfections encountered during the manufacture, stacking, transport and erection of precast concrete structural elements, and suggests a number of possible remedial actions. The remedial actions depend on the severity of the imperfection, the feasibility of repair and the consequences on the intended use of the concrete member. Imperfections in concrete structures are impossible to avoid and can range from minor surface blemishes to major structural defects. Because many imperfections are at the limits of specified quality deviations, or are not included in the acceptance criteria, the problem is more complex than a decision between rejection or acceptance. This document deals with precast concrete elements that do not meet the quality as intended in the design. It compares imperfections in quality to the specified requirements so that the effect of the imperfection can be evaluated. Recommendations are provided on methods to prevent such imperfections, the effect they can have and any necessary actions for rectification. The bulletin applies to prefabricated concrete members made of reinforced or prestressed normal weight concrete. Products include beams and columns, concrete walls, hollow core slabs, double tees, planks and beams for beam and block floors. Water retaining structures are outside the scope of this document.

Author: Carlo Pellegrino
Publisher: Springer Nature
ISBN: 3030918777
Category : Technology & Engineering
Languages : en
Pages : 1454

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Book Description
This book gathers the latest advances and innovations in the field of quality control and improvement of bridges and structures, as presented by international researchers and engineers at the 1st Conference of the European Association on Quality Control of Bridges and Structures (EUROSTRUCT 2021), held in Padua, Italy on August 29 – September 1, 2021. Contributions include a wide range of topics such as testing and advanced diagnostic techniques for damage detection; SHM and AI, IoT and machine learning for data analysis of bridges and structures; fiberoptics and smart sensors for long-term SHM; structural reliability, risk, robustness, redundancy and resilience for bridges; corrosion models, fatigue analysis and impact of hazards on infrastructure components; bridge and asset management systems, and decision-making models; Life-Cycle Analysis, retrofit and service-life extension, risk management protocols; quality control plans, sustainability and green materials.

Author: FIB – International Federation for Structural Concrete
Publisher: FIB - International Federation for Structural Concrete
ISBN: 2883940215
Category : Technology & Engineering
Languages : en
Pages : 276

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Book Description

Author:
Publisher:
ISBN:
Category : Cement
Languages : en
Pages : 314

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Book Description

Author: MARIO SEPÚLVEDA REQUENA
Publisher: Mario Sepúlveda Requena
ISBN:
Category : Science
Languages : es
Pages : 146

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Book Description
Libro enfocado al estudio de las patologías en obras edificatorias d hormigón armado

Author: Alfredo Boracchini
Publisher: John Wiley & Sons
ISBN: 3433606064
Category : Technology & Engineering
Languages : de
Pages : 384

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Book Description
Dieses Buch führt in alle Aspekte der sicheren Berechnung, Bemessung und Konstruktion von wirtschaftlichen modernen Verbindungen im Stahlbau ein. Die Hintergrunderläuterungen sind nicht an eine spezifische Norm gekoppelt, sondern es werden unterschiedliche Normen und Methoden verglichen, die in der Praxis zur Anwendung kommen, wie z. B. Eurocode, AISC, DIN, BS. Anhand einer Reihe von Beispielen werden Problemlösungen detailliert beschrieben und illustriert. Damit erhält der Leser alle notwendigen Werkzeuge an die Hand, um auch komplexe Probleme bei der Konstruktion von Verbindungen zu lösen. Das Buch ist für Berufseinsteiger, für erfahrene Praktiker sowie auch für Stahlbaufachleute eine Arbeitshilfe, denn es werden einfache und komplexe Beanspruchungen an Verbindungen abgebildet. Weniger ausführlich werden Erdbebenauslegung, Schweißnähte, die Wechselwirkung mit anderen Materialien (Beton, Holz) und kalt geformte Verbindungen behandelt.

Author: Hugo Donini
Publisher: Nobuko
ISBN: 9874000937
Category : Architecture
Languages : es
Pages : 556

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Book Description
"El presente libro es un modesto aporte en la comprensión de los fenómenos patológicos que agreden al hormigón armado y a las estructuras que con este material se construyen. Los primeros capítulos permiten introducir al lector en los conceptos generales del hormigón armado como material y sus características. En los siguientes capítulos se efectúa un análisis de los procesos físicos, mecánicos, químicos y biológicos que afectan la durabilidad del hormigón armado. La profundidad del desarrollo de los procesos procura ahondar en aquellos que no siempre son tratados con detalle y no en los que se poseen amplio desarrollo en la bibliografía disponible. Existe un apartado especial para las estructuras con requerimientos de estanqueidad, en el que se detallan algunas medidas para incrementar el control de la fisuración y su durabilidad. Al respecto, la fisuración, el control de las deformaciones y la acción del fuego tienen un tratamiento particular en los Capítulos 8, 9, 10 y 11. En el Capítulo 12 se mencionan algunos de los principales procesos patológicos ocurridos en las fundaciones. En el Capítulo 15, se hace hincapié en las medidas de protección, refuerzo y reparación, al desarrollar conceptos como el recrecido de vigas y columnas, refuerzos con perfiles de acero o materiales como el CFRP. En el Capítulo 16 se incluye un apartado referido al uso de micropilotes inyectados para el recalce de fundaciones. Finalmente, en el Anexo I se desarrollan conceptos básicos sobre la elaboración y uso de hormigón autocompactante que tiene un ámbito de aplicación importante, entre otros, en el recrecido y refuerzo de las estructuras de hormigón armado. Se ha procurado amenizar la lectura del texto y plasmar los conceptos con soluciones numéricas, superando las 350 figuras y los 36 ejemplos de aplicación. No obstante, y a pesar de hacer mención a procesos patológicos, el texto procura ser precautorio, es decir, desarrolla contenidos para prevenir la ocurrencia de fallas y mecanismos que puedan agredir al hormigón."

Author: Tim Huff
Publisher: CRC Press
ISBN: 1000543374
Category : Technology & Engineering
Languages : en
Pages : 387

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Book Description
This book examines and explains material from the 9th edition of the AASHTO LRFD Bridge Design Specifications, including deck and parapet design, load calculations, limit states and load combinations, concrete and steel I-girder design, bearing design, and more. With increased focus on earthquake resiliency, two separate chapters– one on conventional seismic design and the other on seismic isolation applied to bridges– will fully address this vital topic. The primary focus is on steel and concrete I-girder bridges, with regard to both superstructure and substructure design. Features: Includes several worked examples for a project bridge as well as actual bridges designed by the author Examines seismic design concepts and design details for bridges Presents the latest material based on the 9th edition of the LRFD Bridge Design Specifications Covers fatigue, strength, service, and extreme event limit states Includes numerous solved problems and exercises at the end of each chapter to illustrate the concepts presented LRFD Bridge Design: Fundamentals and Applications will serve as a useful text for graduate and upper-level undergraduate civil engineering students as well as practicing structural engineers.

Author: fib Fédération internationale du béton
Publisher: fib Fédération internationale du béton
ISBN: 2883940800
Category : Technology & Engineering
Languages : en
Pages : 151

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Book Description
fib Bulletin 40 deals mainly with the use of FRP bars as internal reinforcement for concrete structures. The background of the main physical and mechanical properties of FRP reinforcing bars is presented, with special emphasis on durability aspects. For each of the typical ultimate and serviceability limit states, the basic mechanical model is given, followed by different design models according to existing codes or design guidelines. Composite FRP materials are still relatively new in construction and most engineers are unfamiliar with their properties and characteristics. The second chapter of this bulletin therefore aims to provide practising engineers with the necessary background knowledge in this field, and also presents typical products currently available in the international market. The third chapter deals with the issue of durability and identifies the parameters that can lead to deterioration, which is necessary information when addressing design issues. A series of parameters is used to identify the allowable stress in the FRP after exposure for a specified period of time in a specific environment. The bulletin covers the issues of Ultimate Limit States (primarily dealing with flexural design), Serviceability Limit States (dealing with deflections and cracking), Shear and Punching Shear and Bond and Tension Stiffening. It provides not only the state-of-the-art but also in many cases ideas for the next generation of design guidelines. The final chapter deals with the fundamental issue of design philosophy. The use of these new materials as concrete reinforcement has forced researchers to re-think many of the fundamental principles used until now in RC design. The bulletin ends with a discussion of a possible new framework for developing partial safety factors to ensure specific safety levels that will be flexible enough to cope with new materials.