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Improvement Of Continuity Connection Over Fixed Piers
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Book Synopsis Improvement of Continuity Connection Over Fixed Piers by : M. Ala Saadeghvaziri
Download or read book Improvement of Continuity Connection Over Fixed Piers written by M. Ala Saadeghvaziri and published by . This book was released on 2004 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: To improve structural efficiency of multi-span simply supported bridges, partial and/or full continuity is provided through cast- in-place concrete diaphragms and decks. These bridges, known as Simple-Span Precast Prestressed Bridge Girders Made Continuous, are continuous for live loads. This continuity connection is also beneficial from maintenance point of view by eliminating open joints. However, continuity connections also have their own structural, construction, and maintenance shortcomings. Development of positive moments and diaphragm cracking at the internal pier due to time dependent effects of prestressing is a major structural problem that also affects bridge durability and esthetics. Another issue is that due to reinforcement congestion joint construction is time consuming and thus expensive. Furthermore, the degree of continuity varies depending on structural and construction conditions. These problems are common to various design details used by many states in the US.
Book Synopsis Improvement of Continuity Connections Over Fixed Piers by :
Download or read book Improvement of Continuity Connections Over Fixed Piers written by and published by . This book was released on 2004 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Post-tensioning the Inverted-t Bridge System for Improved Durability and Increased Span-to-depth Ratio by : Rim Nayal
Download or read book Post-tensioning the Inverted-t Bridge System for Improved Durability and Increased Span-to-depth Ratio written by Rim Nayal and published by . This book was released on 2007 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Possibly the most pressing need in highway construction today is the repair or replacement of existing bridges. Due to increased needs and growing traffic, in addition to aging and extensive use, more than 2000 bridges in Kansas alone need to be replaced during the next decade. The majority of these bridges has spans of 100 ft or less, and has relatively shallow profiles. It is becoming increasingly important to implement a standard method for replacement in which the process is expedited and accomplished in cost-effective manner. Requirements for design and construction of concrete bridges have drastically changed during recent years. A main change in design is live-load requirements. Nebraska inverted-T bridge system has gained increasing popularity for its lower weight compared to I-girder bridges. However, there are some limiting issues when using IT system in replacing existing CIP bridges. Implementation of a post-tensioned IT system, which is the focus of this research, is believed to be one excellent solution for the IT deficiencies. Post-tensioning is added by placing a draped, post-tensioning duct in the stems of the IT members. Post-tensioning will lead to a higher span-to-depth ratio than IT system, and will reduce the potential transverse cracks in the (CIP) deck. Finally, the undesired cambers of pretensioned beams will be reduced, because fewer initial prestressing will be needed. This study was intended to explore the behavior of the PT-IT system, identify major parameters that control and limit the design of this system, and investigate different construction scenarios. This was achieved by conducting an extensive parametric study. For that purpose, PT-IT analysis program was developed and written using C++ programming language. The program was used to analyze various post-tensioning procedures for the post-tensioned inverted-T system. A Visual Basic friendly interface was provided to simplify the data input process. The findings of this research included recommendation of construction scenario for PT-IT system, as well as examining different methods for estimating time-dependent restraining moments. Effect of different concrete strengths on the behavior of PT-IT system was also determined. Most importantly, the effect of timing on different construction stages was also evaluated and determined.
Book Synopsis English Patents of Inventions, Specifications by :
Download or read book English Patents of Inventions, Specifications written by and published by . This book was released on with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 6th Street Viaduct Seismic Improvement Project by :
Download or read book 6th Street Viaduct Seismic Improvement Project written by and published by . This book was released on 2011 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cathodic Corrosion Protection Systems by : Alireza Bahadori
Download or read book Cathodic Corrosion Protection Systems written by Alireza Bahadori and published by Gulf Professional Publishing. This book was released on 2014-07-05 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion is a naturally occurring cost, worth billions in the oil and gas sector. New regulations, stiffer penalties for non-compliance and aging assets are all leading companies to develop new technology, procedures and bigger budgets catering to one prevailing method of prevention, cathodic protection. Cathodic Corrosion Protection Systems: A Guide for Oil and Gas Industries trains on all the necessary reports, inspection criteria, corrective measures and critical standards needed on various oil and gas equipment, structures, tanks, and pipelines. Demands in the cathodic protection market have driven development for better devices and methods, helping to prolong the equipment and pipeline's life and integrity. Going beyond just looking for leaks, this handbook gives the engineer and manager all the necessary tools needed to put together a safe cathodic protection system, whether it is for buried casing while drilling, offshore structures or submarine pipelines. - Understand how to install, inspect and engage the right cathodic protection systems for various oil and gas equipment, tanks, and pipelines - Properly construct the right procedure and anodes with all relevant US and International standards that apply - Gain knowledge concerning techniques, equipment, measurements and test methods used in real-world field scenarios
Book Synopsis Design & Construction of Segmental Concrete Bridges by :
Download or read book Design & Construction of Segmental Concrete Bridges written by and published by . This book was released on 1994 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mobile Barrages and Intakes on Sediment Transporting Rivers by : M. Bouvard
Download or read book Mobile Barrages and Intakes on Sediment Transporting Rivers written by M. Bouvard and published by Routledge. This book was released on 2017-10-05 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid growth in water requirements makes it necessary to increase the amount of water drawn from rivers. The dams necessary for capturing river water have to be built to resist damage when large floods occur, and an idea of the possible destructive power of floods is given by the front photograph. The need for protection results in thick sill structures fitted with gates, and ""upstream"" and ""downstream"" cut-off walls. Sediment transported by rivers settles forming deposits behind dams, where flow velocities decrease. On the other hand, where flow velocities are high through hydraulic machinery (pums and turbines) fed from the dam, it can be necessary to remove even fine sand from the water, and also to remove floating debris. Various hydro-mechanical installations (including gates and screens) are introduced into the flow circuits to deal with sediment and debris problems.Many emperical solutions to definition of very important details complement standard design procedures. Understanding of their use is facilitated by numerous illustrations.
Download or read book The Engineer written by and published by . This book was released on 1857 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Life-Cycle Civil Engineering by : Fabio Biondini
Download or read book Life-Cycle Civil Engineering written by Fabio Biondini and published by CRC Press. This book was released on 2008-05-28 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life-Cycle Civil Engineering contains the papers presented at the First International Symposium on Life-Cycle Civil Engineering (IALCCE 08), held in Villa Monastero, Varenna, Lake Como, Italy, 10-14 June, 2008. It consists of a book and a CD-ROM containing 150 papers, including eight keynote papers and 142 technical contributions from 28 countries.
Download or read book Engineering written by and published by . This book was released on 1866 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1989 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Engineering; an Illustrated Weekly Journal by :
Download or read book Engineering; an Illustrated Weekly Journal written by and published by . This book was released on 1917 with total page 1576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering News written by and published by . This book was released on 1878 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Mechanics' Magazine and Journal of Engineering, Agricultural Machinery, Manufactures and Shipbuilding by :
Download or read book The Mechanics' Magazine and Journal of Engineering, Agricultural Machinery, Manufactures and Shipbuilding written by and published by . This book was released on 1865 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Engineering News and American Contract Journal by :
Download or read book Engineering News and American Contract Journal written by and published by . This book was released on 1879 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Parliamentary Papers by : Great Britain. Parliament. House of Commons
Download or read book Parliamentary Papers written by Great Britain. Parliament. House of Commons and published by . This book was released on 1902 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
