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Behavior of Piles under Cyclic Loading : SOLCYP Recommendations.

Detalles Bibliográficos
Clasificación:	Libro Electrónico
Autor principal:	Puech, Alain
Otros Autores:	Garnier, Jacques
Formato:	Electrónico eBook
Idioma:	Inglés
Publicado:	Newark : John Wiley & Sons, Incorporated, 2017.
Temas:	Soil mechanics-Research-United States.
Acceso en línea:	Texto completo

Tabla de Contenidos:

Cover
Half-Title Page
Title Page
Copyright Page
Contents
Foreword
Preface
List of Symbols
1. SOLCYP Project
1.1. Motivations
1.2. The SOLCYP project
1.2.1. The ANR-SOLCYP program
1.2.2. The national SOLCYP project
1.2.3. Organization of the PN-SOLCYP
1.3. Content and nature of this book
1.4. Regulatory context
1.5. Bibliography
2. Scope and Field of Application of Recommendations
2.1. Variable loading and cyclic loading
2.2. Structures to which this discussion pertains
2.3. Effects of cyclic loading on the foundations
2.4. Types of piles
2.5. Types of soils
2.6. Bibliography
3. Cyclic Loadin
3.1. General
3.2. Characterization of cyclic loads
3.2.1. Regular loading: definitions
3.2.2. Cyclic loading of soil samples in the laboratory
3.2.3. Real-world cyclic loading
3.3. Taking account of real cyclic loading in the design process
3.3.1. Principle and definitions
3.3.2. Counting methods
3.3.3. Damage laws
3.4. Bibliography
4. Introduction to Cyclic Degradation
4.1. Introduction
4.2. Cyclic degradation of soil properties
4.2.1. Recap of the response of soils to monotonic loading
4.2.2. Soil response to cyclic loading
4.2.3. Contour diagrams
4.2.4. Generalized contour diagrams
4.2.5. Obtaining contour diagrams for a particular soil
4.2.6. Cyclic degradation of the shear modulus
4.3. Cyclic degradation of soil-pile interfaces
4.3.1. General considerations on soil-pile interface tests
4.3.2. SOLCYP databank on direct shear soil-pile tests
4.4. Cyclic degradation of pile response
4.4.1. Piles subjected to axial cyclic loading
4.4.2. Piles subject to lateral cyclic loading
4.5. Appendices
4.5.1. Appendix 1: Program of CNL and CNS tests and parameters influencing their outcome.
4.5.2. Appendix 2: CNS tests. Corrections to be made to the raw measurements
4.6. Bibliography
5. SOLCYP Design Strategy
5.1. General methodology
5.2. Knowledge pf loads
5.3. Analysis of regulatory loads
5.4. Criteria of cyclic severity for axial loads
5.4.1. Axial capacity of piles: definitions
5.4.2. Use of the cyclic stability diagram
5.4.3. Influence of soil-pile relative stiffness
5.5. Cyclic severity criteria for transverse loading
5.5.1. Case of sands
5.5.2. Case of clays
5.6. Detailed characterization of the cyclic loads
5.7. Cyclic pile design methods
5.8. Obtaining the parameters
5.9. Bibliography
6. Behavior of Piles Subject to Cyclic Axial Loading
6.1. Introduction
6.2. Large international programs
6.3. Tests in clay soils
6.3.1. Normally consolidated to slightly overconsolidated clays
6.3.2. Highly overconsolidated clays
6.3.3. Comparisons of the results
6.4. Tests in sands
6.4.1. Silica sand
6.4.2. Carbonate soils
6.5. About the static load-bearing capacity
6.5.1. Ageing in sands
6.5.2. Effect of time and preshearing in clays
6.5.3. Softening
6.5.4. Loading rate
6.6. Summary
6.7. Appendix: cyclic loading tests on piles at the Merville site
6.7.1. Introduction
6.7.2. Results obtained on two driven piles (B1 and B4)
6.7.3. Results obtained on bored (CFA) piles
6.7.4. Results obtained on bored screw piles
6.8. Bibliography
7. Design of Piles Subjected to Cyclic Axial Loading
7.1. Introduction
7.2. General principles
7.3. The NGI approach
7.3.1. Fundamental principles
7.3.2. PAXCY and PAX2 programs
7.4. The ICL approach
7.4.1. Basic principle
7.4.2. The ABC global method
7.4.3. Local applications of the ABC method
7.5. The RATZ-CYCLOPS suite of programs
7.6. The SCARP program.
7.6.1. Description of the SCARP program
7.6.2. Calibration of the SCARP program
7.7. Finite Element Method approaches
7.8. The SOLCYP approach for non-cohesive soils
7.8.1. General principles
7.8.2. Choice of parameters to characterize the soil-pile system
7.8.3. Modeling of the results of direct soil-structure shear
7.8.4. Modeling by the t-z envelope curve method
7.8.5. Modeling by the method of t-z cyclic curves (TZC software)
7.8.6. FEM modeling
7.8.7. Case of driven piles
7.9. Bibliography
8. Behavior of Piles Subject to Cyclic Lateral Loading
8.1. Soil-pile interaction under lateral loading
8.1.1. Relative stiffness
8.1.2. Concept of lateral reaction
8.1.3. Crucial role of surface layers
8.2. Main experimental data
8.3. Available data on the effect of the cycles
8.3.1. Effect of cycles on the pile's lateral displacement
8.3.2. Effect of cycles on the maximum bending moment in the pile
8.3.3. Effect of cycles on the P-y reaction curves
8.4. Contribution of the SOLCYP project
8.4.1. Context and scope of the studies conducted
8.4.2. Testing conditions
8.5. Data obtained on the effect of cycles
8.5.1. Case of sands
8.5.2. Case of clays
8.6. Final overview of the data on the effect of cycles
8.6.1. Effects on pile head displacement
8.6.2. Effects on the maximum moment and the reactions in the soil
8.7. Bibliography
9. Design of Piles Subject to Cyclic Lateral Loading
9.1. Recap of the current rules
9.2. Methodology to take account of cyclic loads
9.3. Taking account of the cycles by the global method SOLCYP-G
9.3.1. Principles of the global method
9.3.2. Conventional limit load and failure load
9.3.3. Degree of relative stiffness of the pile and limits of flexible andrigid piles.
9.3.4. Presizing of the pile subject to the maximum static load Hmax
9.3.5. Cyclic severity criteria
9.3.6. Effect of cycles on the pile head displacement
9.3.7. Effect of cycles on the maximum bending moment
9.4. Taking account of cycles by a local method SOLCYP-L
9.4.1. Principle of the local method
9.4.2. Determination of the P-multipliers for monotonic P-y curves
9.5. Domains of validity and example of application
9.5.1. Domains of validity of the global method SOLCYP-G and local method SOLCYP-L
9.5.2. Example of application of the global and local methods
9.6. Conclusion
9.7. Bibliography
10. Determination of Cyclic Parameters for Pile Design
10.1. Introduction
10.2. Parameters for the design of piles subjected to cyclic loads
10.2.1. Mineralogy
10.2.2. Parameters for monotonic calculations
10.2.3. Cyclic parameters
10.2.4. Consolidation parameters
10.2.5. Remolding parameters
10.3. Obtaining the parameters for the design of piles subjected to cyclic loading
10.3.1. Lab tests
10.3.2. In situ tests
10.4. Bibliography
11. Recommendations for Testing Piles Under Cyclic Loading
11.1. Introduction
11.2. Reasons for the tests
11.3. The different test methods
11.4. Contribution of calibration chamber tests: Axial loading
11.5. Contribution of centrifuge tests: Axial or transverse loading
11.6. In situ axial loading tests
11.6.1. Objectives of the test
11.6.2. Design support tests (FEED tests)
11.6.3. Validation tests (Non-Working Pile Tests)
11.6.4. Control tests (Working Pile Tests)
11.7. Transverse loading tests in situ
11.7.1. Objectives and representativity of tests
11.7.2. Design support tests (FEED tests)
11.7.3. Validation tests (Non-Working Pile Tests)
11.7.4. Control tests (Working Pile Tests).
11.8. Appendix 1: Recap on scaling effects
11.8.1. Tests on reduced-scale models in the lab
11.8.2. Tests of piles in situ
11.9. Appendix 2: In situ axial loading
11.9.1. Test setup
11.9.2. Instrumentation and data acquisition
11.10. Appendix 3: Transverse loading in situ
11.10.1. Test setup
11.10.2. Instrumentation and data acquisition
11.11. Bibliography
Index
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