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Book Seismic Performance of Flared Bridge Columns

Download or read book Seismic Performance of Flared Bridge Columns written by Anthony V. Sánchez and published by . This book was released on 1997 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a joint analytical and experimental research program which investigated the influence that flares have on the structural behavior of columns. The program also verified the potential seismic performance issues associated with flared columns. Ten model columns were constructed and tested in two phases, upside down, as simple cantilevers. The columns featured both large and heavily reinforced structural flares or small, light reinforced, non- structural flares. A prismatic reference column, as-built/as-designed column, and retrofit/improved flare designs were tested for both phases. Practical solutions for analyzing, design, and retrofitting flared columns are proposed, based on this research.

Book Seismic Performance of Well confined Concrete Bridge Columns

Download or read book Seismic Performance of Well confined Concrete Bridge Columns written by Dawn Ellen Lehman and published by . This book was released on 2000 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Seismic Retrofit of Flared Bridge Columns with Steel Jackets

Download or read book Seismic Retrofit of Flared Bridge Columns with Steel Jackets written by Cory Caywood and published by . This book was released on 1998 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Shake Table Testing of Flared Bridge Columns with Steel Jacket Retrofit

Download or read book Shake Table Testing of Flared Bridge Columns with Steel Jacket Retrofit written by Brett A. McElhaney and published by . This book was released on 2001 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Seismic Performance of a Full Scale Bridge Column as Built and as Repaired

Download or read book Seismic Performance of a Full Scale Bridge Column as Built and as Repaired written by Takeshi Ohtaki and published by . This book was released on 1996 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Predicting Seismic Performance of Circular Reinforced Concrete Bridge Columns

Download or read book Predicting Seismic Performance of Circular Reinforced Concrete Bridge Columns written by Hamid Anghaie and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The 2014 Canadian Highway Bridge Design Code (CHBDC) has been significantly modified to improve the seismic design and analysis of new bridges. Performance-Based Design has been implemented in the code as the main seismic design methodology for bridges. The goal of this research is to provide appropriate damage indicators that can be used in the performance-based design approach. Numerical models were developed using the Response-2000 program and the OpenSees platform. Nonlinear pushover analyses were conducted on a number of columns tested by other researchers. The numerical models were validated by comparing the predictions to the test results and the accuracy of the predictions was investigated. These studies provide guidance for engineers in the numerical modeling of bridge columns and also provide damage indicators for cover spalling, residual crack width, longitudinal bar buckling, and longitudinal bar fracture. " --

Book Seismic Performance of Bridge Columns with Interlocking Spiral Reinforcement

Download or read book Seismic Performance of Bridge Columns with Interlocking Spiral Reinforcement written by David I. McLean and published by . This book was released on 1994 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Seismic Performance of Circular Reinforced Concrete Bridge Columns Constructed with Grade 80 Reinforcement

Download or read book Seismic Performance of Circular Reinforced Concrete Bridge Columns Constructed with Grade 80 Reinforcement written by David Trejo and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This project assessed the use of ASTM A706 Grade 80 reinforcing bars in reinforced concrete columns. Grade 80 is not currently allowed in reinforced concrete columns due to lack of information on the material characteristics and column performance. Six half-scale, circular columns were tested: three constructed with Grade 60 reinforcement and three constructed with Grade 80 reinforcement. Designs followed standard design methodologies used by State Highway Agencies (including AASHTO). Results indicate that columns constructed with Grade 80 reinforcement performed similar to columns constructed with conventional ASTM A706 Grade 60 reinforcement. Computational modeling was performed using OpenSees for all six columns. Results indicate that the columns constructed with Grade 80 reinforcement achieved similar resistance and displacement and curvature ductility values when compared with the reference columns constructed with Grade 60 reinforcement. The columns constructed with Grade 60 reinforcement showed larger hysteretic energy dissipation than the columns constructed with Grade 80 reinforcement.

Book Seismic Performance of Reinforced Concrete Bridge Columns Constructed with Grade 80 Reinforcement

Download or read book Seismic Performance of Reinforced Concrete Bridge Columns Constructed with Grade 80 Reinforcement written by Tim B. Link and published by . This book was released on 2014 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research presented in this thesis assessed the use of high strength steel (HSS) reinforcement for use in reinforced concrete (RC) bridge columns. HSS is not currently allowed in reinforced concrete bridge columns due to a lack of information on the material characteristics and performance information when used in RC bridge columns. Potential benefits in construction, performance, and economics justify the need for research. This research investigated the performance of HSS (ASTM A706 Grade 80 reinforcement) embedded in half-scale RC bridge columns. Column design followed standard design methodologies used by federal and state highway agencies. Six columns were subjected to lateral cyclic loadings, three columns were constructed with Grade 60 reinforcement and three columns were constructed with Grade 80 reinforcement. Results indicate that the columns constructed with Grade 80 reinforcement achieved similar resistances and displacement ductility values when compared with the reference columns constructed with Grade 60 reinforcement. The columns constructed with Grade 60 reinforcement showed larger hysteretic energy dissipation and typically exhbitied larger curvature ductility values than the columns constructed with Grade 80 reinforcement. The effects of the longitudinal reinforcement ratio and moment-shear span ratio on column performance were similar between columns constructed with Grade 60 reinforcement and columns constructed with Grade 80 reinforcement. The results from this research present a promising step towards the implementation of Grade 80 reinforcement in the design and construction of RC bridge columns, within the bounds of the variables used in the testing program.

Book Seismic Performance of Self consolidating Concrete Bridge Columns

Download or read book Seismic Performance of Self consolidating Concrete Bridge Columns written by Todd Pauly and published by . This book was released on 2014 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: