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Flood scour for bridges and highways : prevention and control of soil erosion /
The first professional publication to focus on preventing and rehabilitating dangerous bridge scour-the leading cause of bridge and highway structure failure in the U.S.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
New York, N.Y. :
McGraw-Hill Education,
[2015]
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| Edición: | First edition. |
| Colección: | McGraw-Hill's AccessEngineering.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- A. About the Author
- B. Preface
- Objectives
- Need to Incorporate Growing Technologies
- Track Record of Successful Bridge Design and Construction
- Key Benefits
- Applications to Analysis, Design, Inspection, and Drawings Preparation
- C. Symbols
- A. PART 1: Erosion Problems, Review of Failures, and Progress Made
- 1. Water May Quench Thirst But May Also Drown
- Generation of Floods and Disruptions to Life
- The Hydrologic Cycle and Multiple Sources of Floods
- Need for Nationwide Checkup on Infrastructure Health
- A Survey of Recent Floods That Affected Infrastructure
- Need to Maintain Transportation Network at Reasonable Cost
- Global Problems of Flood Hazards, Drought, and Water Conservation
- Asset Management to Include Flood Mitigation Measures
- Developing an Environmental Policy for Floods
- Current Bridge Scour Control Practice
- Precautions and Solutions
- Conclusions
- Bibliography
- 2. River Instability Caused by Flow Obstructions
- Floodplain Formation
- Erosive Effects of Floods and Tides on Transportation
- Multiple Types of Riverine Flow Processes
- Basic Concepts of Open-Channel Hydraulics
- Hydraulic Issues of Bridges on Waterways
- Role of Movable Bridges to Facilitate Navigation in Rivers
- Debris Accumulation Upstream of Bridges
- Planning and Design Issues to Restrict Scour at Scour-Critical Bridges
- Bridge Performance Based on AASHTO (LRFD) Load Combinations for the Extreme Conditions
- Project Funding Requirements and Regulations
- Conclusions
- Bibliography
- 3. Scour Countermeasures as Remediation
- Scour Mitigation Using Various Types of Countermeasures
- Modifications to FHWA HEC-23 Countermeasures Matrix
- Applications of FHWA HEC-18 and HEC-23 Procedures
- Case Studies of Scour-Prone and Scour-Critical Rivers
- Methods for Investigating Conditions of Existing Footings
- Streamlining of Structural Elements for Efficient Planning
- Selection of Flood-Resistant Countermeasures
- Factors Affecting Detailed Design of Countermeasures
- Use of Rock Riprap as Temporary Armoring
- Applying Modern Techniques to Contain Erosion
- Applications of Geotextile and Granular Filters
- Design Guidelines for Armoring Countermeasures Other Than Riprap
- Conclusions
- Bibliography
- 4. Innovative Methods of Flood Disaster Management
- Overview of Scour Repairs
- Adopting Precautions to Prevent Failures
- Introducing a Fresh Approach in Countermeasure Design and Construction
- Utilizing Advancements in Construction Technology
- Accelerated Bridge Construction (ABC) over River and Replacement Methods
- Developing Design Codes for River Bridges for ABC and for Flood Conditions
- Applications of Modern Construction Materials
- Use of Recyclable Materials Technology
- Use of Fiber-Reinforced Polymer Concrete and Products
- Advancements in Concrete Technology
- Developments in Steel Materials and Metallurgy
- Performance of Steel Bridges over Rivers
- Continuing Education in New Technology Applications for Engineers
- FHWA TIGER Program Funding
- Conclusions
- Bibliography
- 5. Past Failures of Bridges and Those Vulnerable to Failure
- How River Bridges Become Structurally Deficient
- Vulnerability to Failure of Bridges on Waterways
- Analysis of River Bridge Failures
- Typical Bridge Failures from Scour
- Lessons Learned from European Bridge Failures
- Bridge Failures from Ship Impact on Substructure or Superstructure
- Additional List of Failures of River Bridges
- Case Studies of Well-Known Bridge Failures
- Forensic Engineering Application to Bridge Failures
- Recommendations for Avoiding Failures
- Rehabilitation and Repair of Existing Structures
- Underwater Repairs
- Preventive Actions for Vessel Collision or Floating Ice Impacts
- Conclusions
- Bibliography
- B. Hydrology, Hydraulics, Scour Analysis, and Inspection Methods
- 6. Geotechnical and Hydraulic Issues at Scour-Critical Rivers and Bridges
- Standard Procedures for Hydraulic Analysis and Design
- Application of AASHTO Specifications for Foundation Design
- Modeling for Hydraulic Analysis
- Performing Scour Analysis
- Scour of Piles, Pile Groups, and Caissons
- Contents of a Hydraulic Report and Guidelines
- Guidelines for Preparing Geotechnical Reports and Plans, Specifications
- Foundation Modification by Structural Countermeasures
- Investigating Unknown Foundations
- Types of Foundation Selection for New Bridges
- Conclusions
- Bibliography
- 7. Hydrology, Floods, and Selection of Scour-Critical Bridges
- Causes and Effects of Floods
- Methods of Hydrologic Analysis
- USGS StreamStats Software
- Case Studies of Peak Flood Computations Using Practical Examples
- Scour Practice Survey in U.S. States
- Identifying Scour-Critical Bridges on Flood-Prone Rivers
- Planning of Structures in Relation to Hydrology Data
- Substructure Planning for New Bridges
- Planning Considerations for Superstructures Based on Hydrology and Hydraulics
- Formation of Scour Holes during Floods
- Conclusions
- Bibliography
- 8. Estimating Scour Depths and Selecting Applicable Countermeasures
- Need for Inspection, Scour Studies, and Remediation
- Factors Affecting Scour
- Rating of Scour-Critical Bridges Using the Pennsylvania SCBI Method
- Use of Hydraulic Assessment Checklist
- Vulnerability Index for Scour-Critical Bridges
- Scour Case Studies by the Author
- Case Study of Countermeasure Evaluation
- Applications of Computer Software for Scour Analysis
- Scour Depth?A Concern for the Bridge Engineer
- Precautions to Minimize Flood Damage
- Conclusions
- Bibliography
- 9. Inspections, Monitoring, and Flood Management
- Need for Underwater Inspection, Monitoring, and Vigilance
- Floodwater Sources and Rise of Water Level at Bridges
- Maintaining the River Environment
- Emergency Bridge Protection Measures
- Essentials of Scour Monitoring Program
- Description of Monitoring Measures
- Methods for Investigating Scour Conditions for Vulnerable Foundations
- Adopting a Flood Watch List for Scour-Critical Rivers
- Plans and Preliminary Estimates
- Pennsylvania DOT Bridge Scour Evaluation Program
- Scour Studies Listed in Inspection Reports of Sample Bridges
- Innovative Techniques for Monitoring
- Essentials of Postflood Disaster Management
- Role of Environmental Agencies Such as FEMA and EPA to Combat Floods
- Flood Disaster Management in India and Pakistan
- Conclusions
- Bibliography
- C. Glossary
- D. Sample Scour Calculations (HEC-18)
- Determine Scour Variables
- Aggradation / Degradation in Stream Bed
- Evaluate Scour Analysis Method (Live Bed or Clear Water)
- Live Water Contraction Scour
- Local Scour: Left Bridge Abutment
- Local Scour: Right Bridge Abutment
- Local Scour: Piers
- E. Sample ABSCOUR Solved Example.