Download or read book An Evaluation of Thorma Joint a Flexible Bridge Expansion Joint System written by Gerald J. Kauffman and published by . This book was released on 1990 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Evaluation of Thorma Joint a Flexible Bridge Expansion Joint System written by Robert Fredwin Baker and published by . This book was released on 1995 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Elastomeric Concrete Plug Joints A New Durable Bridge Expansion Joint Design written by Soundar S. G. Balakumaran and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expansion joints are important components of bridges that accommodate the movements between deck spans that result from thermal loads, traffic loads, and other environmental factors. Experience shows that joints undergo premature deterioration on a regular basis, thus leading to unexpected problems caused by leakage of water and other corrosive chemicals over the components of the superstructure and substructure, thus leading to premature deterioration of those components. Millions of dollars have been spent by the Virginia Department of Transportation (VDOT) over more than 50 years for repairs and replacements of joints. Several types of closed joints have been developed and installed in the past three decades to combat this problem. In addition, jointless details at piers and abutments have been developed and installed in the same time period to eliminate the need for joints. However, the issue persists. VDOT's Structure and Bridge Division has developed a new design for a flexible joint system with bonded and debonded zones. An elastomeric concrete material acts as the load-bearing surface and the component that allows free expansion and contraction. This joint system has been installed in selected pilot bridges on secondary roads for observation. This study evaluated the performance of this joint system and detailed the challenges faced in developing it. The elastomeric concrete plug joint system was successfully implemented in five pilot bridges in Virginia. Short-term performance of the system was satisfactory under Virginia weather conditions. Rutting during the summer months has not been observed even though one of the elastomeric materials had failed in the laboratory testing. Expansion cracking during the winter months was not observed in the first year after installation. It was determined that shore durometer hardness values can be used as a preliminary filter to select elastomeric material with resistance to permanent indentation. Dynamic modulus testing can be used as a measure of the toughness and flexibility of elastomeric concrete material under different temperatures. However, these tests do not give a complete picture of the material properties, so engineering judgment is also necessary in order to make decisions regarding the elastomeric materials. The Virginia Transportation Research Council and VDOT's Structure and Bridge Division should continue to monitor visually the performance of the elastomeric concrete plug joint systems installed during this study and continue to evaluate new elastomeric concrete candidates for the joint system. Further, the Virginia Transportation Research Council and VDOT's Structure and Bridge Division should expand the trials to other VDOT districts for various exposure conditions.

Download or read book Development Implementation of the Division of Research and Technology Web Page written by and published by . This book was released on 2002 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Proposal and Examination of a New Bridge Expansion Joint Systems written by Robert Ford Shattuck and published by . This book was released on 1971 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Testing for Modular Bridge Joint Systems written by Robert Joseph Dexter and published by Transportation Research Board National Research. This book was released on 2002 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Checklist of State Publications written by Library of Congress. Exchange and Gift Division and published by . This book was released on 1992 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: June and Dec. issues contain listings of periodicals.

Download or read book Checklist of Official New Jersey Publications written by and published by . This book was released on 1991 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MONTHLY CHECKLIST OF STATE PUBLICATIONS written by Exchange and Gift Division Collections Services and published by . This book was released on 1992 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Highways written by and published by . This book was released on 1990 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Better Roads written by and published by . This book was released on 1995 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Traffic Engineering Control written by and published by . This book was released on 1980 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bridge Bearings and Expansion Joints written by D J Lee and published by CRC Press. This book was released on 1994-11-03 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a guide to movement and restraint in bridges for bridge engineers and will enable them to draw up design calculations and specifications for effective installation, and satisfactory service and durability of bearings and joints. It has been fully revised and updated in line with current codes and design practice, modern developme

Download or read book Conference on Chemical Risk Assessment in the Department of Defense DoD written by Harvey J. Clewell and published by American Conference of Governmental Industrial Hygenists. This book was released on 1992-01-01 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prestressed Concrete Bridges written by Nigel R. Hewson and published by Thomas Telford. This book was released on 2003 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prestressed concrete decks are commonly used for bridges with spans between 25m and 450m and provide economic, durable and aesthetic solutions in most situations where bridges are needed. Concrete remains the most common material for bridge construction around the world, and prestressed concrete is frequently the material of choice. Extensively illustrated throughout, this invaluable book brings together all aspects of designing prestressed concrete bridge decks into one comprehensive volume. The book clearly explains the principles behind both the design and construction of prestressed concrete bridges, illustrating the interaction between the two. It covers all the different types of deck arrangement and the construction techniques used, ranging from in-situ slabs and precast beams; segmental construction and launched bridges; and cable-stayed structures. Included throughout the book are many examples of the different types of prestressed concrete decks used, with the design aspects of each discussed along with the general analysis and design process. Detailed descriptions of the prestressing components and systems used are also included. Prestressed Concrete Bridges is an essential reference book for both the experienced engineer and graduate who want to learn more about the subject.

Download or read book Mechanistic empirical Pavement Design Guide written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cast Iron Technology written by Roy Elliott and published by Butterworth-Heinemann. This book was released on 1988-04-18 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cast Iron Technology presents a critical review of the nature of cast irons. It discusses the types of cast iron and the general purpose of cast irons. It also presents the history of the iron founding industry. Some of the topics covered in the book are the description of liquid metal state; preparation of liquid metal; process of melting; description of cupola melting and electric melting methods; control of composition of liquid metal during preparation; description of primary cast iron solidification structures; and thermal analysis of metals to determine its quality. Solidification science and the fundamentals of heat treatment are also discussed. An in-depth analysis of the hot quenching techniques is provided. The graphitization potential of liquid iron is well presented. A chapter is devoted to microstructural features of cast iron. The book can provide useful information to iron smiths, welders, students, and researchers.