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An Investigation Of The Effectiveness Of Tensile Reinforcement In Alleviating Approach Fill Settlement Behind Bridge Abutments
Download An Investigation Of The Effectiveness Of Tensile Reinforcement In Alleviating Approach Fill Settlement Behind Bridge Abutments full books in PDF, epub, and Kindle. Read online An Investigation Of The Effectiveness Of Tensile Reinforcement In Alleviating Approach Fill Settlement Behind Bridge Abutments ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis An Investigation of the Effectiveness of Tensile Reinforcement in Alleviating Approach Fill Settlement Behind Bridge Abutments by : Gregory John Monley
Download or read book An Investigation of the Effectiveness of Tensile Reinforcement in Alleviating Approach Fill Settlement Behind Bridge Abutments written by Gregory John Monley and published by . This book was released on 1988 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation Into Improvement of Bridge Approaches in South Carolina by :
Download or read book Investigation Into Improvement of Bridge Approaches in South Carolina written by and published by . This book was released on 2001 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Geotechnical Engineering by :
Download or read book Journal of Geotechnical Engineering written by and published by . This book was released on 1993 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geotextiles, Geomembranes, and Related Products: Steep slopes and walls. Embankments on soft soil. Roads and railroads. Filtration and drainage. Erosion control by : G. den Hoedt
Download or read book Geotextiles, Geomembranes, and Related Products: Steep slopes and walls. Embankments on soft soil. Roads and railroads. Filtration and drainage. Erosion control written by G. den Hoedt and published by CRC Press. This book was released on 1990 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1990. Routledge is an imprint of Taylor & Francis, an informa company.
Download or read book Geotechnical Abstracts written by and published by . This book was released on 1990 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Settlement Behind Bridge Abutments by : D. McLaren
Download or read book Settlement Behind Bridge Abutments written by D. McLaren and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Construction Guidelines for Geosynthetic-reinforced Soil Bridge Abutments with a Flexible Facing by : Jonathan T. H. Wu
Download or read book Design and Construction Guidelines for Geosynthetic-reinforced Soil Bridge Abutments with a Flexible Facing written by Jonathan T. H. Wu and published by Transportation Research Board. This book was released on 2006 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction and research approach -- Findings -- Interpretation, appraisal, and applications -- Conclusions and suggested research -- Appendixes.
Book Synopsis Flowable Fill as Backfill for Bridge Abutments by : Joe R. Wilson
Download or read book Flowable Fill as Backfill for Bridge Abutments written by Joe R. Wilson and published by . This book was released on 1999 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Settlement of Bridge Approaches by : Jean-Louis Briaud
Download or read book Settlement of Bridge Approaches written by Jean-Louis Briaud and published by Transportation Research Board. This book was released on 1997 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Assessment of MSE Abutment Walls in Indiana by : Venkata Abhishek Sakleshpur
Download or read book Performance Assessment of MSE Abutment Walls in Indiana written by Venkata Abhishek Sakleshpur and published by . This book was released on 2017-10-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a numerical investigation of the behavior of steel strip-reinforced mechanically stabilized earth (MSE) direct bridge abutments under static loading. Finite element simulations were performed using an advanced two-surface bounding plasticity model based on critical state soil mechanics. Results of the simulations were found to be in good agreement with published laboratory and field measurements, including horizontal facing displacements and tensile forces in the reinforcement. A parametric study was then conducted to investigate the behavior of a full-scale direct MSE bridge abutment. The parameters considered were the horizontal distance of the footing behind the wall facing, backfill compaction, reinforcement length and spacing, and magnitude of bridge load. Results indicate that the aforesaid parameters have a significant influence on the horizontal facing displacements, bridge footing settlements, and axial strains in the reinforcements. A survey questionnaire on the current state-of-practice of direct and mixed MSE abutments was prepared and distributed to all the Departments of Transportation (DOTs) in the United States. Results obtained from the survey shed light on the percentage of use of direct and mixed MSE abutments by various DOTs, abutment height, type and dimensions of the facing element, type of reinforcement, proportioning of footing and pile in direct and mixed MSE abutments, respectively, and common problems experienced by DOTs with respect to construction and performance of MSE abutments in the field.
Book Synopsis Service Limit State Design and Analysis of Engineered Fills for Bridge Support by : Mahsa Khosrojerdi
Download or read book Service Limit State Design and Analysis of Engineered Fills for Bridge Support written by Mahsa Khosrojerdi and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineered fills, including compacted granular fill and reinforced soil, are a cost-effective alternative to conventional bridge foundation systems. The Geosynthetic Reinforced Soil Integrated Bridge System (GRS-IBS) is a fast, sustainable and cost-effective method for bridge support. The in-service performance of this innovative bridge support system is largely evaluated through the vertical and lateral deformations of the GRS abutments and the settlements of reinforced soil foundations (RSF) during their service life. While it is a common assumption that granular or engineered fills do not exhibit secondary deformation, it has been observed in in-service bridge abutment applications and large-scale laboratory tests. Evaluation of the secondary, or post-construction, deformation of engineered fills is therefore also needed. The aim of this study is to analyze and quantify the maximum deformations of GRS abutment and RSF under service loads, evaluate the stress distributions within the engineered fills of the GRS abutment and RSF, and investigate the time-dependent behavior of engineered fills for bridge support. The ultimate goal is to provide accurate yet easy-to-use analysis-based design tools that can be used in the performance assessment of GRS abutments and RSF under service loads. It is anticipated that the research performed within the scope of this dissertation will eventually help promote sustainable and efficient design practice of these structures.The research objective was achieved through development of numerical models that employed finite difference solution scheme and simulated the performance of granular backfill and reinforcement material. The backfill soil was simulated using three different constitutive models. Comparison of the simulation results with case studies showed that the behavior of GRS structures under service loads is accurately predicted by the Plastic Hardening model. The developed models were validated through comparison of model predictions with laboratory and field test data reported in the literature. A comprehensive parametric study was conducted to evaluate the effects of backfill soils properties (friction angle and cohesion), reinforcement characteristics (stiffness, spacing, and length), and structure geometry (abutment height and facing batter and foundation width) on the deformations of GRS abutments and RSF. The results of the parametric study were used to conduct a nonlinear regression analysis to develop equations for predicting the maximum lateral deformation and settlement of GRS abutments and maximum settlement of RSF under service loads. The accuracy of the proposed prediction equations was evaluated based on the results of experimental case studies. The developed prediction equations may contribute to better understanding and enable simple calculations in designing these structures. To investigate the time-dependent deformations of GRS abutment and RSF, a numerical model was developed. The time-dependent deformations are also known as secondary deformations and creep. To model the creep behavior of the backfill material, the Burgers creep viscoplastic model that combines the Burgers model and the Mohr-Coulomb model was used in the simulations. To model the creep behavior of geosynthetics, the model proposed by Karpurapu and Bathurst (1995) was used; this model uses a hyperbolic load-strain function to calculate the stiffness of the reinforcement. Results indicated that engineered fills can exhibit noticeable secondary deformation.
Book Synopsis Engineering Geology for Society and Territory - Volume 6 by : Giorgio Lollino
Download or read book Engineering Geology for Society and Territory - Volume 6 written by Giorgio Lollino and published by Springer. This book was released on 2014-08-30 with total page 1003 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is one out of 8 IAEG XII Congress volumes, and deals with the theme of applied geology, which is a critical theme for the global economy. In the international, multidisciplinary approach to major engineering projects (either to macro- or mega-scale), the application of geological investigation techniques is fundamental for properly selecting the location sites, planning the construction and maintaining the infrastructures. The contributions in this book include not only engineering constructions but also case studies related to large projects on geo-resources exploration and extraction (minerals, petroleum and groundwater), energy production (hydropower, geothermal, nuclear and others), transportation (railway and highway) and waste disposal as well as the environmental management of these and other activities. The Engineering Geology for Society and Territory volumes of the IAEG XII Congress held in Torino from September 15-19, 2014, analyze the dynamic role of engineering geology in our changing world and build on the four main themes of the congress: Environment, processes, issues, and approaches. The congress topics and subject areas of the 8 IAEG XII Congress volumes are: 1. Climate Change and Engineering Geology 2. Landslide Processes 3. River Basins, Reservoir Sedimentation and Water Resources 4. Marine and Coastal Processes 5. Urban Geology, Sustainable Planning and Landscape Exploitation 6. Applied Geology for Major Engineering Projects 7. Education, Professional Ethics and Public Recognition of Engineering Geology 8. Preservation of Cultural Heritage.
Book Synopsis Design and Construction of Bridge Approaches by : Harvey E. Wahls
Download or read book Design and Construction of Bridge Approaches written by Harvey E. Wahls and published by Transportation Research Board. This book was released on 1990 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes case histories of the Dumbarton Bridge (San Francisco Bay, Calif.), the Rainier Avenue Embankment (Seattle, Wash.) and the Gallows Road Grade Separation (Fairfax, Va.)
Download or read book Report written by and published by . This book was released on 2006 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Passive Force-deflection Behavior for Abutments with MSE Confined Approach Fills by : Kyle M. Rollins
Download or read book Passive Force-deflection Behavior for Abutments with MSE Confined Approach Fills written by Kyle M. Rollins and published by . This book was released on 2010 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approach fills behind bridge abutments are commonly supported by wrap-around mechanically stabilized earth (MSE) walls; however the effect of this geometry on passive force development is unknown. This report describes the first large-scale tests to evaluate passive force-deflection curves for abutments with MSE wingwalls. A test was also performed with fill extending beyond the edge of the abutment wall for comparison. The abutment wall was simulated with a pile supported cap 5.5 ft high, 11 ft wide, and 15 ft long in the direction of loading. The backfill behind the pile cap consisted of clean sand compacted to 96% of the modified Proctor maximum density. As the pile cap was loaded laterally, pressure on the MSE wall led to pull-out of the steel reinforcing grids and the MSE wall panels moved outward about 2% of the wall height when the ultimate passive force developed. Despite pullout, the passive force per effective width was 28 kips/ft for the pile cap with MSE wingwalls compared to 22.5 kips/ft for the cap without wingwalls. Nevertheless, the passive force with the MSE wingwalls was still only 76% of the resistance provided by the cap with fill extending beyond the edges. The pile cap with MSE walls required greater movement to reach the ultimate passive force (deflection of 4.2% of wall height vs. 3%). The Caltrans method provided good agreement with the measured passive resistance while the log spiral method required the use of a higher plane strain friction angle to provide reasonable agreement.
Book Synopsis Geosynthetic Reinforced Soil (GRS) Walls by : Jonathan T. H. Wu
Download or read book Geosynthetic Reinforced Soil (GRS) Walls written by Jonathan T. H. Wu and published by John Wiley & Sons. This book was released on 2019-07-10 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book to provide a detailed overview of Geosynthetic Reinforced Soil Walls Geosynthetic Reinforced Soil (GRS) Walls deploy horizontal layers of closely spaced tensile inclusion in the fill material to achieve stability of a soil mass. GRS walls are more adaptable to different environmental conditions, more economical, and offer high performance in a wide range of transportation infrastructure applications. This book addresses both GRS and GMSE, with a much stronger emphasis on the former. For completeness, it begins with a review of shear strength of soils and classical earth pressure theories. It then goes on to examine the use of geosynthetics as reinforcement, and followed by the load-deformation behavior of GRS mass as a soil-geosynthetic composite, reinforcing mechanisms of GRS, and GRS walls with different types of facing. Finally, the book finishes by covering design concepts with design examples for different loading and geometric conditions, and the construction of GRS walls, including typical construction procedures and general construction guidelines. The number of GRS walls and abutments built to date is relatively low due to lack of understanding of GRS. While failure rate of GMSE has been estimated to be around 5%, failure of GRS has been found to be practically nil, with studies suggesting many advantages, including a smaller susceptibility to long-term creep and stronger resistance to seismic loads when well-compacted granular fill is employed. Geosynthetic Reinforced Soil (GRS) Walls will serve as an excellent guide or reference for wall projects such as transportation infrastructure—including roadways, bridges, retaining walls, and earth slopes—that are in dire need of repair and replacement in the U.S. and abroad. Covers both GRS and GMSE (MSE with geosynthetics as reinforcement); with much greater emphasis on GRS walls Showcases reinforcing mechanisms, engineering behavior, and design concepts of GRS and includes many step-by-step design examples Features information on typical construction procedures and general construction guidelines Includes hundreds of line drawings and photos Geosynthetic Reinforced Soil (GRS) Walls is an important book for practicing geotechnical engineers and structural engineers, as well as for advanced students of civil, structural, and geotechnical engineering.
Author :Robert J. Frosch Publisher :Joint Transportation Research Program ISBN 13 :9781622600120 Total Pages :149 pages Book Rating :4.6/5 (1 download)
Book Synopsis Long-Term Behavior of Integral Abutment Bridges by : Robert J. Frosch
Download or read book Long-Term Behavior of Integral Abutment Bridges written by Robert J. Frosch and published by Joint Transportation Research Program. This book was released on 2011-08-15 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integral abutment (IA) construction has become the preferred method over conventional construction for use with typical highway bridges. However, the use of these structures is limited due to state mandated length and skew limitations. To expand their applicability, studies were implemented to define limitations supported by rational analysis rather than simply engineering judgment. Previous research investigations have resulted in larger length limits and an overall better understanding of these structures. However, questions still remain regarding IA behavior; specifically questions regarding long-term behavior and effects of skew. To better define the behavior of these structures, a study was implemented to specifically investigate the long term behavior of IA bridges. First, a field monitoring program was implemented to observe and understand the in-service behavior of three integral abutment bridges. The results of the field investigation were used to develop and calibrate analytical models that adequately capture the long-term behavior. Second, a single-span, quarter-scale integral abutment bridge was constructed and tested to provide insight on the behavior of highly skewed structures. From the acquired knowledge from both the field and laboratory investigations, a parametric analysis was conducted to characterize the effects of a broad range of parameters on the behavior of integral abutment bridges. This study develops an improved understanding of the overall behavior of IA bridges. Based on the results of this study, modified length and skew limitations for integral abutment bridge are proposed. In addition, modeling recommendations and guidelines have been developed to aid designers and facilitate the increased use of integral abutment bridges.
