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Author:
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 54
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Book Description
Author:
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 54
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Book Description
Author: Ronald L. Purvis
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 66
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Book Description
This synthesis on underwater bridge maintenance and repair will be of special interest to bridge maintenance engineers and others involved with repair of bridge elements located below the waterline and in the splash zone. Procedures for correctly assessing the problem and engineering the repair within the constraints of individual situations, including bridge scour considerations, are described. Protection, maintenance, and repair of concrete, masonry, steel, and timber bridge foundation elements are also addressed. This synthesis updates the maintenance and repair portion of NCHRP Synthesis 88: Underwater Inspection and Repair of Bridge Substructures. This report of the Transportation Research Board identifies and describes current practices and innovative repair techniques for problems associated with settlement, scour, and deterioration of underwater bridge elements. The synthesis considers various types of protection, maintenance, and repair work on bridge substructures, both underwater and in the splash zone, and includes techniques, and their effectiveness. Current research in the topic area and critical research needs are also identified. A limited bibliography is also provided.
Author: Ronald L. Purvis (Ingénieure.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 54
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Book Description
Author: Federal Highway Administration
Publisher:
ISBN: 9781521174395
Category :
Languages : en
Pages : 121
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Book Description
This manual is intended to serve as a reference for design engineers, construction inspectors, resident engineers, inspection divers and other administrative and technical staff whose work tasks include the repair or rehabilitation of elements of bridges or similar structures located below water. The manual addresses a variety of design and construction issues that must be considered in determining the feasibility of, and selecting the repair or rehabilitation methodology, for underwater projects. This information can aid in developing cost effective and durable repair and rehabilitation designs. CHAPTER I - UNDERWATER REPAIR AND REHABILITATION OF BRIDGES AND STRUCTURES * CHAPTER II - MAINTENANCE * CHAPTER III - UNDERWATER REPAIR PLANNING DATA AND REPAIR OPTION ANALYSIS. * CHAPTER IV - MARINE CONSTRUCTION MATERIALS * CHAPTER V - UNDERWATER REPAIRS * CHAPTER VI - EQUIPMENT FOR UNDERWATER REPAIR * CHAPTER VII - PIER REPAIRS * CHAPTER VIII - PILE and SHEET PILE REPAIRS * CHAPTER IX - CATHODIC PROTECTION FOR SUBSTRUCTURES * CHAPTER X - CONTRACTING AND CONSTRUCTION INSPECTION. CHAPTER 1 UNDERWATER REPAIR AND REHABILITATION OF BRIDGES AND STRUCTURES * SECTION 1. INTRODUCTION * 1-1.1 Purpose * 1-1.2 Background * 1- 1.3 Scope * CHAPTER II MAINTENANCE * SECTION 1. INTRODUCTION * 2- 1.1 Marine Environment Factors * 2-1.2 Deterioration Models * 2-1.3 Preventive Maintenance Activities * 2- 1.4 Performance Monitoring * CHAPTER III UNDERWATER REPAIR PLANNING DATA AND REPAIR OPTION ANALYSIS. * SECTION 1. INTRODUCTION * SECTION 2. CONDITION ASSESSMENT * 3- 2.1 General * 3-2.2 Steel * 3-2.3 Timber * 3-2.4 Masonry * 3-2.5 Scour * 3-2.6 Concrete * SECTION 3. STRUCTURAL ANALYSIS * 3-3.1 Introduction * 3-3.2 Piles * 3-3.3 Undermining * 3-3.4 Concrete * SECTION 4. REPAIR STRATEGY * CHAPTER IV MARINE CONSTRUCTION MATERIALS * SECTION 1. INTRODUCTION * SECTION 2. STEEL * 4-2.1 General * SECTION 3. CONCRETE * 4-3.1 Mix Design * 4-3.2 Reinforcing * SECTION 4. MASONRY * 4-4.1 Stone * 4-4.2 Mortar * SECTION 5. TIMBER * 4-5.1 Preservatives * 4-5.2 Decay Reinforced Species * 4-5.3 Fabrication * SECTION 6. COMPOSITES * 4-6.1 Components * 4-6.2 Physical Properties * 4-6.3 Mechanical Properties * 4- 6.4 Example Products * CHAPTER V UNDERWATER REPAIRS * SECTION 1. INTRODUCTION * SECTION 2. GENERAL CONSTRUCTION OPTIONS * 5- 2.1 Repairs Performed "In-the-Dry" * 5-2.2 Repairs Performed "In-the-Wet" * SECTION 3. ENVIRONMENTAL CONSIDERATIONS * 5-3.1 Site Conditions * 5-3.2 Water Conditions * 5-3.3 Regulatory * SECTION 4. METHODS TO OBTAIN DRY WORK CONDITIONS * 5-4.1 Traditional Cofferdams * 5-4.2 Dikes * 5-4.3 Proprietary Barrier Systems * 5- 4.4 Limpet Cofferdams * CHAPTER VI EQUIPMENT FOR UNDERWATER REPAIR * SECTION 1. INTRODUCTION * SECTION 2. DIVING SYSTEMS * 6- 2.1 Scuba * 6-2.2 Surface Supplied Diving * SECTION 3. REMOTELY OPERATED VEHICLES (ROV) * SECTION 4. ABOVE WATER SUPPORT * SECTION 5. UNDERWATER TOOLS * SECTION 6. EXCAVATION METHODS * 6-6.1 Hydraulic Excavators * 6-6.2 Airlifts * 6-6.3 Jetting * 6-6.4 Dredging * SECTION 7. SPECIAL EQUIPMENT * SECTION 8. UNDERWATER WELDING * 6-8.1 Introduction * 6-8.2 Methods * 6-8.3 Welding and Diving Standards and Specifications * 6-8.4 Effects of Wet Welding Versus Dry Welding * 6-8.5 Weld Design * 6-8.6 Weld Qualification * 6- 8.7 Underwater Burning * CHAPTER VII PIER REPAIRS. * SECTION 1. INTRODUCTION * SECTION 2. FORMING SYSTEMS * 7- 2.1 Rigid Formwork * 7-2.2 Flexible Formwork * 7-2.3 Concrete Preparation * SECTION 3. REINFORCING * 7-3.1 Design Considerations * 7-3.2 Surface Preparation * 7-3.3 Anchorage * SECTION 4. CONCRETE PLACEMENT METHODS * 7-4.1 Hand Patching * 7-4.2 Tremie Placement * 7-4.3 Pump Placement * 7-4.4 Preplaced Aggregate Concrete * 7-4.5 Bottom Dump * 7-4.6 Bagged Concrete * SECTION 5. CRACK REPAIR * 7-5.1 Routing and Sealing * 7-5.2 Epoxy Injection * SECTION 6. MASONRY REPAIR * SECTION 7. UNDERMINING AND LOCAL SCOUR REPAIRS * 7-7.1 Undermining Repairs
Author: H. C. Lamberton
Publisher: Transportation Research Board National Research
ISBN: 9780309034074
Category : Bridges
Languages : en
Pages : 77
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Book Description
Author: Kenneth A. Brewer
Publisher: AASHTO
ISBN: 1560513764
Category : Bridges
Languages : en
Pages : 373
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Book Description
Author: Terence M. Browne
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages :
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Book Description
Author: Mark A. Hurt
Publisher: Butterworth-Heinemann
ISBN: 0128020695
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Highway departments around the world are faced with the dilemma of providing improved operations on a "shoe string budget". Even after the much needed infrastructure funding is received, the question of which project comes first must be answered. Written by a 20-year veteran with the Kansas Department Of Transportation Bridge Office in design and in maintenance. Highway Bridge Maintenance Planning and Scheduling provides Senior Bridge Maintenance Engineers or "Senior Squad Leaders", practical advice for creating an effective maintenance program that will allow them to not only plan, schedule, direct and monitor highway bridge repair and rehabilitation project but also evaluate all completed work for technical acceptability, productivity and unit-cost standards. Provides the tools and methods for building and maintaining and effective maintenance planning and scheduling organization Provides experience-based suggestions for evaluating highway bridges and determining maintenance priorities Methods for evaluating all completed work for technical acceptability, productivity and unit-cost standards.
Author: Ronald L. Purvis
Publisher:
ISBN:
Category :
Languages : en
Pages : 54
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Book Description
Author: Parsons Brinckerhoff
Publisher: Wiley-Interscience
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 312
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Book Description
More than a third of America's bridges are considered substandard--either structurally deficient, functionally obsolete or both. Offers first-rate, practical guidance regarding the inspection and rehabilitation of aging bridge infrastructure including all elements involving structure, various materials and design types. Features seismic retrofit and coverage of environmental issues. Each chapter is written by an authority on the subject. Contains top-quality, detailed line illustrations plus photographs of actual rehab projects.
