The Effects Of Gapping On Pile Behaviour Under Lateral Cyclic Loading
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The Effects Of Gapping On Pile Behaviour Under Lateral Cyclic Loading
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Author : Satyawan Pranjoto
language : en
Publisher:
Release Date : 2000
The Effects Of Gapping On Pile Behaviour Under Lateral Cyclic Loading written by Satyawan Pranjoto and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Load factor design categories.
Response Of Pile Foundations Due To Lateral Force And Soil Movements
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Author : Hongyu Qin
language : en
Publisher:
Release Date : 2010
Response Of Pile Foundations Due To Lateral Force And Soil Movements written by Hongyu Qin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Electronic dissertations categories.
Abstract : This research has investigated the response of pile foundations subjected to lateral force applied directly to pile head and loadings arising from lateral soil movements of the surrounding ground. The behaviour of pile foundations subjected to lateral soil movements was studied through physical modelling with a specially designed testing apparatus. Laboratory experiments have been undertaken on a single pile embedded in progressive moving sand. A triangular loading block was used in the model tests to induce a progressive soil movement profile. Apart from eight general tests, sixteen tests were conducted on a single pile to examine the effects of the distance between the source where soil movements were induced and the pile location, the magnitude of axial load applied at pile head, the variation of loading block angle, varying combination of sliding and stable layer depths, and pile diameter on the responses of piles. The results of previously conducted pile tests with a uniform soil movement profile were compared with those of the current tests to examine the effect of soil movement profiles on the pile behaviour. Simple solutions were proposed for predicting the pile responses. They provided good estimate of the development of maximum bending moment and maximum shear force in the piles with soil movement. Importantly, the maximum bending moments induced by the soil movements were found to be linearly related to the maximum shear forces (sliding thrust), independent of the magnitude and depth of soil movement and soil movement profiles. Experiments have also been conducted on pile groups in progressive moving sand, including various pile group configurations and spacing. Both free-head and cappedhead fixity conditions have been considered. The findings show that the resistances of the piles to lateral soil movements significantly rely on their locations in a group, especially for piles arranged in a line parallel to the soil movement direction. The results of the pile group tests were compared with those of the single pile tests. Group factors were defined in terms of maximum bending moment and modulus of subgrade reaction to quantify the impact of group effect. The simple solutions developed were extended for predicting the response of individual piles in a group with soil movement. The static and cyclic responses of laterally loaded piles in cohesionless soils have been investigated as well. Guideline for estimating the design parameters for laterally loaded rigid piles in cohesionless soils were provided from extensive back calculation of measured responses of fifty-one pile tests. The elastic-plastic solutions presented by Guo (2008) were used in the back calculation. Simple expressions were presented for estimating the parameters used in the solutions. The reliability of the back calculation, the effects of the ratio of loading eccentricity to pile embedded length on the nonlinear pile response and lateral load capacity were investigated. Additionally, the apparatus was modified to apply cyclic lateral loading, with which a series of model tests were conducted on piles in dry sand under static and cyclic loadings. Analyses of the test results show that the cyclic load level has a greater impact on the pile behaviour than the number of cycles. It is noted that the gradient of the limiting force profile will decrease and the modulus of subgrade reaction will increase, after a number of unloading and reloading cycles. The induced maximum bending moment can be estimated from the applied lateral load, eccentricity of the load, and the depth at which the maximum bending moment occurs.
Advanced Design Of Pile Foundations Under Lateral Loading
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Author : Wei Dong Guo
language : en
Publisher: CRC Press
Release Date : 2023-12-15
Advanced Design Of Pile Foundations Under Lateral Loading written by Wei Dong Guo and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-15 with Technology & Engineering categories.
This book presents models that capture the nonlinear response of piles subjected to lateral forces. Utilising a consistent approach encompassing new mathematical models, it offers solutions presented as closed-form expressions and underpinned by the same set of 3-5 measurable soil-input parameters. These focus on nonlinear response of mono piles, anchored piles, pile groups, and torsional piles, as well as passive piles subjected to soil movement induced in shearing, sliding slopes or excavation, and earthquake shaking. The models can also be used for pipelines and similar beam structures. Solutions are provided in the form of design charts, with each parameter obtained using available test data and illustrated with real-world cases. The models reveal, for the first time, the mysterious mechanisms of amplification resulting from back-rotation, which have incurred the collapse of structures such as the Showa Bridge and Nicoll Highway, as well as the distortion of piles during earthquakes. Advanced Design of Pile Foundations Under Lateral Loading is ideal for practicing foundation engineers and students at graduate level. Wei Dong Guo is co-founder of Hans Innovation Group and former Associate Professor at the University of Wollongong, Australia. He is a Chartered Professional Engineer and is a Fellow of Engineers Australia by whom he was awarded the 2012 Warren Medal.
Design Of Piles Under Cyclic Loading
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Author : Alain Puech
language : en
Publisher: John Wiley & Sons
Release Date : 2018-01-04
Design Of Piles Under Cyclic Loading written by Alain Puech and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-04 with Science categories.
Recent developments in the fields of energy, transport and industrial engineering have led to the emergence of new types of structures and infrastructures subject to variable stresses, for which the usual methods for designing pile foundations are now inadequate. The recommendations presented in this book will help to partly fill this technical gap by proposing a methodological approach and calculation methods to take account of the effects of cyclic loads in the design of foundations on piles. These are based on both laboratory and full scale experiments, and on modeling carried out within the framework of the national SOLCYP project.
Cyclic Lateral Load Behaviour Of Piles
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Author : T. Mosikeeran
language : en
Publisher:
Release Date : 1990
Cyclic Lateral Load Behaviour Of Piles written by T. Mosikeeran and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Concrete piling categories.
Behavior Of Piles And Pile Groups Under Lateral Load
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Author : Lymon C. Reese
language : en
Publisher:
Release Date : 1986
Behavior Of Piles And Pile Groups Under Lateral Load written by Lymon C. Reese and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Dead loads (Mechanics). categories.
Experimental Response Of A Pile In Sand Under Static And Cyclic Lateral Loads
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Author : Pegah Oghabi
language : en
Publisher:
Release Date : 2014
Experimental Response Of A Pile In Sand Under Static And Cyclic Lateral Loads written by Pegah Oghabi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Piles are engineering structures which are subjected to axial and lateral loading. In this dissertation, pile load tests were performed on a full-scale fabricated pile to understand lateral pile responses under static and cyclic loading. The experiments were performed on a fabricated test pile at the Geo-Engineering Laboratory at Queen's University. Dry loose Olimag Synthetic Olivine sand was used as the test soil. Instrumentation including axial strain gauges, null sensors (earth pressure sensors) and string potentiometers were used to monitor pile responses throughout the tests. What differentiates the current study from previous investigations is direct measurements of lateral earth pressure on a test pile using those null sensors with conventional measurements of curvature and deformation. The null sensors of Talesnick (2005) have 'infinite stiffness' and calibration that is almost independent of the soil type, soil condition and stress history, qualities that make the sensor superior to other commercially available sensors. The initial pile response under static loading was examined. Previous laterally loaded pile test programs have utilized curvature measurements to infer moments, and differentiation of moments to determine lateral forces. Comparisons with the directly measured pressures confirmed the effectiveness of differentiated moments. To understand offshore structures, the behaviour of a pile subjected to cyclic loading is examined and explained by elastic soil response at low load levels and the progressive development of inelastic response at higher load levels. In addition, the loading condition (i.e. two-way versus one-way loading) was found to have a substantial effect on pile responses. The pressure distributions for two-way cyclic loading suggest that the lateral pressure is proportional to displacement with peak pressures near the ground surface during elastic responses. The peak lateral pressures move deeper towards the point of rotation with increasing cyclic loads to generate inelastic responses. However, the lateral pressure response is consistently inelastic for one-way loading.
On The Behavior Of Large Diameter Piles Under Cyclic Lateral Load
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Author : Yu-shu Kuo
language : de
Publisher:
Release Date : 2008
On The Behavior Of Large Diameter Piles Under Cyclic Lateral Load written by Yu-shu Kuo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Piling (Civil engineering) categories.
Soil Structure Interaction
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Author :
language : en
Publisher: NZ Geotechnical Society
Release Date : 1978
Soil Structure Interaction written by and has been published by NZ Geotechnical Society this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Soil mechanics categories.
Effect Of Diameter On The Behavior Of Laterally Loaded Piles In Weakly Cemented Sand
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Author : Teerawut Juirnarongrit
language : en
Publisher:
Release Date : 2002
Effect Of Diameter On The Behavior Of Laterally Loaded Piles In Weakly Cemented Sand written by Teerawut Juirnarongrit and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.