Developing short-span alternatives to reinforced concrete box culvert structures in Kansas

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Show simple item record Handke, John Michael 2013-08-07T12:32:48Z 2013-08-07T12:32:48Z 2013-08-07
dc.description.abstract 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 which accelerate the construction process should also be considered. This thesis documents development of a single-span replacement system for box culverts in the state of Kansas. Solutions were found using either a flab 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. en_US
dc.description.sponsorship Kansas Department of Transportation en_US
dc.language.iso en_US en_US
dc.publisher Kansas State University en
dc.subject Short-span bridge en_US
dc.subject Environmentally friendly bridge design en_US
dc.title Developing short-span alternatives to reinforced concrete box culvert structures in Kansas en_US
dc.type Thesis en_US Master of Science en_US
dc.description.level Masters en_US
dc.description.department Department of Civil Engineering en_US
dc.description.advisor Robert J. Peterman en_US
dc.subject.umi Civil Engineering (0543) en_US
dc.subject.umi Environmental Engineering (0775) en_US
dc.subject.umi Wildlife Conservation (0284) en_US 2013 en_US August en_US

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