Evaluation and Repair Procedures for Precast/prestressed Concrete Girders with Longitudinal Cracking in the Web

Evaluation and Repair Procedures for Precast/prestressed Concrete Girders with Longitudinal Cracking in the Web PDF Author: Maher K. Tadros
Publisher: Transportation Research Board
ISBN: 0309118352
Category : Technology & Engineering
Languages : en
Pages : 76

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Book Description
This report establishes a user's manual for the acceptance, repair, or rejection of precast/prestressed concrete girders with longitudinal web cracking. The report also proposes revisions to the AASHTO LRFD Bridge Design Specifications and provides recommendations to develop improved crack control reinforcement details for use in new girders. The material in this report will be of immediate interest to bridge engineers.

Evaluation and Repair Procedures for Precast/prestressed Concrete Girders with Longitudinal Cracking in the Web

Evaluation and Repair Procedures for Precast/prestressed Concrete Girders with Longitudinal Cracking in the Web PDF Author: Maher K. Tadros
Publisher: Transportation Research Board
ISBN: 0309118352
Category : Technology & Engineering
Languages : en
Pages : 76

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Book Description
This report establishes a user's manual for the acceptance, repair, or rejection of precast/prestressed concrete girders with longitudinal web cracking. The report also proposes revisions to the AASHTO LRFD Bridge Design Specifications and provides recommendations to develop improved crack control reinforcement details for use in new girders. The material in this report will be of immediate interest to bridge engineers.

Report

Report PDF Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 508

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Book Description


Summary of Progress - National Cooperative Highway Research Program

Summary of Progress - National Cooperative Highway Research Program PDF Author: National Cooperative Highway Research Program
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 156

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Book Description


Prestressed Concrete

Prestressed Concrete PDF Author:
Publisher: Thomas Telford
ISBN: 9780727715357
Category : Technology & Engineering
Languages : en
Pages : 20

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Book Description
Post-tensioning and grouting operations can be dangerous if the required care is not taken in planning, in site preparations and in execution. For prestressed concrete a good working environment is also a prerequisite for high quality. Many accidents in this type of work may be attributed to a lack of training, poor supervision, poor planning or over-familiarity with the process. This guide to good practice highlights important safety measures which are particularly applicable to prestressed concrete, dealing with precautions necessary for post-tensioning and grouting operations on site.

Concrete Box-girder Bridges

Concrete Box-girder Bridges PDF Author: Jörg Schlaich
Publisher: IABSE
ISBN: 3857480319
Category : Box girder bridges
Languages : en
Pages : 114

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Book Description


Highway Research Abstracts

Highway Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 420

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Book Description


Connection of Simple-span Precast Concrete Girders for Continuity

Connection of Simple-span Precast Concrete Girders for Continuity PDF Author: Richard A. Miller (Professional engineer)
Publisher: Transportation Research Board
ISBN: 0309087937
Category : Concrete beams
Languages : en
Pages : 202

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Book Description
Introduction and Research Approach -- Findings -- Interpretation, Appraisal, and Application -- Interpretation, Appraisal, and Application -- References -- Appendixes.

Vehicle-bridge Interaction Dynamics

Vehicle-bridge Interaction Dynamics PDF Author: Yeong-Bin Yang
Publisher: World Scientific
ISBN: 9812388478
Category : Science
Languages : en
Pages : 565

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Book Description
The commercial operation of the bullet train in 1964 in Japan marked the beginning of a new era for high-speed railways. Because of the huge amount of kinetic energy carried at high speeds, a train may interact significantly with the bridge and even resonate with it under certain circumstances. Equally important is the riding comfort of the train cars, which relates closely to the maneuverability of the train during its passage over the bridge at high speeds.This book is unique in that it is devoted entirely to the interaction between the supporting bridges and moving trains, the so-called vehicle-bridge interaction (VBI). Finite element procedures have been developed to treat interaction problems of various complexities, while the analytical solutions established for some typical problems are helpful for identifying the key parameters involved. Besides, some field tests were conducted to verify the theories established.This book provides an up-to-date coverage of research conducted on various aspects of the VBI problems. Using the series of VBI elements derived, the authors study a number of frontier problems, including the impact response of bridges with elastic bearings, the dynamic response of curved beam to moving centrifugal forces, the stability and derailment of trains moving over bridges shaken by earthquakes, the impact response of two trains crossing on a bridge, the steady-state response of trains moving over elevated bridges, and so on.

Failure, Distress and Repair of Concrete Structures

Failure, Distress and Repair of Concrete Structures PDF Author: Norb Delatte
Publisher: Elsevier
ISBN: 1845697030
Category : Technology & Engineering
Languages : en
Pages : 352

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Book Description
Understanding and recognising failure mechanisms in concrete is a fundamental pre-requisite to determining the type of repair, or whether a repair is feasible. This title provides a review of concrete deterioration and damage, as well as looking at the problem of defects in concrete. It also discusses condition assessment and repair techniques.Part one discusses failure mechanisms in concrete and covers topics such as causes and mechanisms of deterioration in reinforced concrete, types of damage in concrete structures, types and causes of cracking and condition assessment of concrete structures. Part two reviews the repair of concrete structures with coverage of themes such as standards and guidelines for repairing concrete structures, methods of crack repair, repair materials, bonded concrete overlays, repairing and retrofitting concrete structures with fiber-reinforced polymers, patching deteriorated concrete structures and durability of repaired concrete.With its distinguished editor and international team of contributors, Failure and repair of concrete structures is a standard reference for civil engineers, architects and anyone working in the construction sector, as well as those concerned with ensuring the safety of concrete structures. - Provides a review of concrete deterioration and damage - Discusses condition assessment and repair techniques, standards and guidelines

Aws D1. 4/d1. 4m

Aws D1. 4/d1. 4m PDF Author: American Welding Society
Publisher:
ISBN: 9780871719539
Category : Reinforcing bars
Languages : en
Pages : 98

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Book Description
This code covers the requirements for welding steel reinforcing bars in most reinforced concrete applications. It contains a body of rules for regulations of welding steel reinforcing bars and provides suitable acceptance criteria for such welds.