3 D Computer Modeling Of Subsurface Conditions For Bridge Foundations
DOWNLOAD
Download 3 D Computer Modeling Of Subsurface Conditions For Bridge Foundations PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get 3 D Computer Modeling Of Subsurface Conditions For Bridge Foundations book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
3 D Computer Modeling Of Subsurface Conditions For Bridge Foundations
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2000
3 D Computer Modeling Of Subsurface Conditions For Bridge Foundations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Bridges categories.
A study was conducted to evaluate the potential for using three-dimensional (3-D) computer modeling to assist Missouri Department of Transportation Soils and Geology personnel and Bridge Division personnel in developing accurate and realistic understanding of subsurface conditions for bridge structures. Secondary objectives of the study included developing a preliminary procedure for development of 3-D geologic models of bridge sites and identifying key issues to be addressed for more widespread use of 3-D modeling activities. The site of a proposed new bridge across the Missouri River near Lexington, Missouri was selected as a demonstration case study for 3-D geologic modeling. Several separate models of this site were developed during the project to demonstrate the different levels of abstraction for a 3-D model of a particular site. The computer models developed are presented and described in this report.
Modeling Of Seismic Wave Scattering On Pile Groups And Caissons
DOWNLOAD
Author : Ignatius Po Lam
language : en
Publisher:
Release Date : 2007
Modeling Of Seismic Wave Scattering On Pile Groups And Caissons written by Ignatius Po Lam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Bridges categories.
This report documents practical modeling procedures adopted in the bridge engineering community involving seismic dsigns and retrofits of long span bridges relative to treatment of wave propagation problems. It also discusses wave scattering issues arising from irregular foundation boundaries affecting seismic loading of the bridges, which is not explicitly considered in th current design practice. Wave scattering is generally implemented in the nuclear power plant industry for seismic designs of various containment systems often using frequency domain computer programs. To examine the subject of wave scattering for application to long span bridge foundations, systematic modeling is exercised using a time domain based computer program and verification is made against a frequency domain computer program. For present day seismic designs of major bridges, nonlinear time history analysis is a common procedure to examine seismic loading of the structure permitting plastic hinging and ductility to be implemented. Thus, the current trend is to adopt time domain based computer programs for performing wave scattering analyses which can also serve as a common platform to be used by both geotechnical and structural engineers for the global bridge model. A major benefit is to minimize the amount of work for data transfer and potential error arising from two different groups (geotechnical and structural engineers) working on different computer codes requiring different input/output. By using the same computer code by both geotechnical and structural engineers, many problems are eliminated. Typically, wave scattering analyses are conducted in the frequency domain. This report presents studies of wave scattering using a time domain computer program. The same computer program can be used by structural engineers to proceed with coding the superstructure model, directly using the results from the wave scatterings analysis. The report presents various sensitivity analyses in order to minimize wave reflection and refraction at the model's side boundaries. Numerical integration schemes and implementation of Rayleigh parameters are discussed. Careful examination of waves traveling the bottom boundary allows proper modeling of the half-space below the region of interest. The studies explore the effects from wave scattering on large pile groups and soft ground conditions, and findings on the frequency ranges where significant scattering is observed are reported. Large caissons are know to affect seismic wave scattering due to the large wave length implied by the dimensions of the foundation embedded in soil. Parametric studies are performed to examine the shaking level that is altered by the wave scattering mechanism. From the current findings, it appears that the wave scattering tends to reduce the shaking level, especially in the high frequency range, and hence is beneficial to the bridge design
Rock Mechanics Achievements And Ambitions
DOWNLOAD
Author : Meifeng Cai
language : en
Publisher: CRC Press
Release Date : 2011-09-22
Rock Mechanics Achievements And Ambitions written by Meifeng Cai and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-22 with Technology & Engineering categories.
Rock Mechanics: Achievements and Ambitions contains the papers accepted for the 2nd ISRM International Young Scholars’ Symposium on Rock Mechanics, which was sponsored by the ISRM and held on 14–16 October 2011 in Beijing, China, immediately preceding the 12th ISRM Congress on Rock Mechanics. Highlighting the work of young teachers, researchers and practitioners, the present work provides an important stimulus for the next generation of rock engineers, because in the future there will be more emphasis on the use of the Earth’s resources and their sustainability, and more accountability of engineers’ decisions. In this context, it is entirely appropriate that the Symposium venue for the young scholars was in China — because of the rock mechanics related work that is anticipated in the future. For example, in the Chinese Academy of Sciences report, “Energy Science and Technology in China: A Roadmap to 2050”, it is predicted that China’s total energy demand will reach 31, 45, 61 and 66 x 108 tce (tonnes of coal equivalent) in 2010, 2020, 2035, 2050. The associated per capita energy consumption for the same years is estimated at 2.3, 3.1, 4.1 and 4.6 tce. This increasing demand will be met, inter alia, by the continued operation and development of new coal mines, hydroelectric plants and nuclear power stations with one or more underground nuclear waste repositories, all of which will be improved by more modern methods of rock engineering design developed by young scholars. In particular, enhanced methods of site investigation, rock characterisation, rock failure understanding, computer modelling, and rock excavation and support are needed. The topics in the book include contributions on: - Field investigation and observation - Rock constitutive relations and property testing - Numerical and physical modeling for rock engineering - Information technology, artificial intelligence and other advanced techniques - Underground and surface excavation and reinforcement techniques - Dynamic rock mechanics and blasting - Predication and prevention of geo-environmental hazard - Case studies of typical rock engineering Many of the 200 papers address these topics and demonstrate the skills of the young scholars, indicating that we can be confident in the continuing development of rock mechanics and rock engineering, leading to more efficient, safer and economical structures built on and in rock masses. Rock Mechanics: Achievements and Ambitions will appeal to professionals, engineers and academics in rock mechanics, rock engineering, tunnelling, mining, earthquake engineering, rock dynamics and geotechnical engineering.
Fhwa Nationally Coordinated Program Of Highway Research Development And Technology Progress Report 1987
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1987
Fhwa Nationally Coordinated Program Of Highway Research Development And Technology Progress Report 1987 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.
Nationally Coordinated Program Of Highway Research Development And Technology
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1987
Nationally Coordinated Program Of Highway Research Development And Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Highway engineering categories.
Performance Confirmation Of Constructed Geotechnical Facilities
DOWNLOAD
Author : A. J. Lutenegger
language : en
Publisher:
Release Date : 2000
Performance Confirmation Of Constructed Geotechnical Facilities written by A. J. Lutenegger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Technology & Engineering categories.
GSP 94 contains 37 papers presented at a Specialty Conference on Performance Confirmation of Constructed Geotechnical Facilities, held in Amherst, Massachusetts, April 9-12, 2000.
Selected Water Resources Abstracts
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1990-05
Selected Water Resources Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-05 with Water categories.
Proceedings Of The Technology Status And Trends Symposium Marshall Space Flight Center Huntsville Alabama April 21 22 23 1965
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1965
Proceedings Of The Technology Status And Trends Symposium Marshall Space Flight Center Huntsville Alabama April 21 22 23 1965 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Astronautics categories.
Proceedings Of The Institution Of Civil Engineers
DOWNLOAD
Author : Institution of Civil Engineers (Great Britain)
language : en
Publisher:
Release Date : 1990
Proceedings Of The Institution Of Civil Engineers written by Institution of Civil Engineers (Great Britain) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Civil engineering categories.
Masters Theses In The Pure And Applied Sciences
DOWNLOAD
Author : Wade H. Shafer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Masters Theses In The Pure And Applied Sciences written by Wade H. Shafer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 34 (thesis year 1989) a total of 13,377 theses titles from 26 Canadian and 184 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 34 reports theses submitted in 1989, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.