Download or read book Investigation of Multi beam Bridges written by René E. Walther and published by . This book was released on 1956 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of Precast and Prestressed Concrete Bulb Tee Multi beam Bridges written by Ronald L. Sack and published by . This book was released on 1975 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of Precast and Prestressed Concrete Bulb Multi beam Bridges written by Ronald L. Sack and published by . This book was released on 1975 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of the Behaviour of a Multi beam Bridge Deck written by Peter J. Leyden and published by . This book was released on 1987 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Investigation of Longitudinal Movements for a Multibeam Bridge written by Michael Frederick Levert and published by . This book was released on 1988 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract.
Download or read book Methods of Analysis of Multi beam Bridges written by I. G. Buckle and published by . This book was released on 1984 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of Joint Forces in Multibeam Bridges written by Richard Boykin Pool and published by . This book was released on 1963 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Moments in I beam Bridges written by Nathan Mortimore Newmark and published by . This book was released on 1942 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of Load Transfer in Multi beam Prestressed Box Girder Bridges written by Arthur Allen Huckelbridge and published by . This book was released on 1993 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shear in Skewed Multi beam Bridges written by Modjeski and Masters and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigation of Elastic Load Distribution Characteristics of a Prestressed Concrete Multi beam Bridge written by Frederick Lane Moreadith and published by . This book was released on 1961 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Investigation of a Highway T beam Bridge written by Carl Henry Billings and published by . This book was released on 1948 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Finite Element Analysis of Multi channel beam Bridges written by XiaoPeng Qin and published by . This book was released on 2001 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, deterioration in a large number of precast concrete deck bridges (PCDBs) has become a concern. To study the possible reductions in their load carrying capacities, a number of laboratory and field tests were conducted by Iowa State University. Theoretical analysis, the topic of this paper, was performed to verify the testing results. The PCDBs tested are composed of reinforced concrete channel beams, named multi-channel-beam bridges. A literature review was performed to investigate various analytical methods used to analyze multibeam bridges. The finite element method was used for this analytical task. ANSYS, a general finite element software program, was used to analyze the bridges and bridge components that were experimentally tested. Individual channel beams were modeled and compared to laboratory testing results and to ACI code calculations. Several different models were developed and two in particular were appropriate. One model accurately simulates multibeam bridges with bolt connections only. Another model is appropriate to model multibeam bridges with bolt and pipe connections. A sensitivity study was performed to verify models. The same models noted above were used to analyze the field bridges with bolt connections and with bolt and pipe connections, respectively, Analytical results were compared to field load tests. Load distribution factors of the bridges were determined and compared to the AASHTO LRFD specifications.
Download or read book Studies of Slab and Beam Highway Bridges written by Chester Paul Siess and published by . This book was released on 1952 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reflective Cracking of Shear Keys in Multi beam Bridges written by Graeme Peter Sharpe and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-beam bridges made from precast concrete box girders are one of the most common bridge types used in the United States. One problem that affects these bridges is the development of longitudinal or reflective cracks on the road surface because of failure of the shear keys. Some states have attempted to correct this problem by redesigning the shear key or adding post-tensioning, but the problem persists in many new bridges. The purpose of this study is to investigate why these shear key failures are occurring. This project studies two types of box girder designs, the common Precast/Prestressed Concrete Institute (PCI) box girder bridges and the Texas Department of Transportation (TxDOT) box girder bridge. In the past, reflective cracking has occurred in bridges of both types. The analysis procedure involves finite element analyses of bridge models with realistic support and loading conditions, and comparing the PCI and TxDOT bridges. The results indicate that both PCI and TxDOT box girder have sufficient strength to resist cracking from vehicular loads, but uneven temperature changes and shrinkage strains cause high tensile stresses in the shear key regions and lead to reflective cracking. The analyses showed the highest stresses were often times near the supports, rather than at midspan. Past studies have proposed using larger composite deck slabs, transverse post-tensioning, or full-depth shear keys to prevent shear key failure. Composite slabs were the most effective way to reduce high stresses in shear keys, and were effective for all loading cases considered. Post-tensioning and full-depth keys also showed a reduction in shear key stresses, but were less effective.
Download or read book Moments in I beam Bridges written by Nathan M. Newmark and published by . This book was released on 1942 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation and Rehabilitation of Prestressed Adjacent Box Beam Bridges written by Ahmad W. Faqiri and published by . This book was released on 1995 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
