Download or read book Developing Short span Alternatives to Reinforced Concrete Box Culvert Structures in Kansas written by John Michael Handke and published by . This book was released on 2013 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete box culvert floor slabs are known to have detrimental effects on river and stream hydraulics. Consequences include an aquatic environment less friendly to the passage of fish and other organisms. This has prompted environmental regulations restricting construction of traditional, four-sided box culvert structures in rivers and streams populated by protected species. The box culvert standard currently used by the Kansas Department of Transportation (KDOT) is likely to receive increased scrutiny from federal and state environmental regulators in the near future. Additionally, multiple-cell box culverts present a maintenance challenge, since passing driftwood and debris are frequently caught in the barrels and around cell walls. As more structures reach the end of their design lives, new solutions must be developed to facilitate a more suitable replacement. Since construction can cause significant delays to the traveling public, systems and techniques that accelerate the construction process should also be considered. This report documents development of a single-span replacement system for box culverts in the state of Kansas. Solutions were found using either a flat slab or the center span of the KDOT three-span, haunched-slab bridge standard. In both cases, the concrete superstructure is connected monolithically with a set of abutment walls, which sit on piling. The system provides an undisturbed, natural channel bottom, satisfying environmental regulations. Important structural, construction, maintenance, and economic criteria considered during the planning stages of bridge design are discussed. While both superstructural systems were found to perform acceptably, the haunched section was chosen for preliminary design. Rationale for selection of this system is explained. Structural modeling, analysis, and design data are presented to demonstrate viability of the system for spans ranging from 32 to 72 feet. The new system is expected to meet KDOT's needs for structural, environmental, and hydraulic performance, as well as long-term durability. Another option involving accelerated bridge construction (ABC) practices is discussed.
Download or read book Available Accelerated Bridge Construction Options for Short Span Bridges written by Armin Mehrabi and published by Cambridge Scholars Publishing. This book was released on 2024-03-18 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: By employing prefabricated bridge elements and systems, Accelerated Bridge Construction reduces on-site construction time and traffic disruptions, and enhances long-term performance. ABC is particularly advantageous for short-span bridges that are well-suited to standardized prefabrication. In such cases, the entire superstructure and substructure can often be constructed using prefabricated deck elements, modular decks, or systems that span the full bridge width. The construction methods can range from traditional crane installations to Self-Propelled Modular Transport units or slide-in techniques for moving the entire superstructures. This book introduces the concept of ABC and examines its application in the context of short-span bridge construction. It categorizes and details short-span bridges based on various criteria and evaluates the performance of the existing bridges. Decision-making processes regarding the adoption of ABC, choice of elements, systems, and construction methods are also discussed. Additionally, the book covers the inspection of short-span bridges and includes a design example.
Download or read book Developing Cost Effective Plans for Low Volume Bridges written by W. M. Kim Roddis and published by . This book was released on 2006 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is intended to inform Local Public Authority decision-makers of the process required in developing bridge plans and constructing bridges and culverts.
Download or read book Development of Design Criteria for Reinforced Concrete Box Culverts written by Cossio Diaz de (R.) and published by . This book was released on 1959 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Evaluation of Three Sided Concrete Culverts written by KM. Tarhini and published by . This book was released on 2000 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-sided concrete culverts can be used to replace short span bridges and multiple sections (barrels) of four-sided concrete box culverts. ASTM Standards do not specify designs for four-sided concrete box culverts with span lengths exceeding 12 ft (3.6 m) nor do they discuss the three-sided concrete culverts. This paper describes the analysis and design of three-sided flat-top precast reinforced concrete culverts with span length ranging between 14 ft (4 m) and 36 ft (11 m). It was shown that the AASHTO distribution width used in performing plane frame analysis gave similar results to the three-dimensional finite element analysis. Therefore, ten shallow structures were selected for analysis and design. The culverts were subjected to live load plus impact, dead load, and lateral earth pressure. The slab and wall thicknesses were selected so that no shear reinforcement is needed. The ultimate strength design was used to determine main reinforcing steel. AASHTO and ASTM recommendations were used to determine the reinforcing steel in transverse direction.
Download or read book Development of Design Criteria for Reinforced Concrete Box Culverts written by Roger Díaz de Cossío and published by . This book was released on 1959 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering and Contracting written by and published by . This book was released on 1921 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Research Abstracts written by and published by . This book was released on 1992 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Contracting written by and published by . This book was released on 1921 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Journal written by and published by . This book was released on 1925 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 7, no.7, July 1924, contains papers prepared by Canadian engineers for the first World power conference, July, 1924.
Download or read book The Journal of the Engineering Institute of Canada written by Engineering Institute of Canada and published by . This book was released on 1925 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Development and Manufacturers Record written by and published by . This book was released on 1920 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning in 1956 each vol. includes as a regular number the Blue book of southern progress and the Southern industrial directory, formerly issued separately.
Download or read book Canadian Engineer written by and published by . This book was released on 1924 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete cement Age written by and published by . This book was released on 1918 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Products written by and published by . This book was released on 1909 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
