The ongoing deterioration of highway bridges in Colorado dictates that an effective method for allocating limited management resources be developed. In order to predict bridge deterioration in advance, mechanistic models that analyze the physical processes causing deterioration are capable of supplementing purely statistical models and addressing limitations associated with bridge inspection data and statistical methods. A review of existing analytical models in the literature was conducted. A mechanistic model was developed to predict corrosion and concrete cracking as a function of material and environmental inputs., Kyle Nickless, Rebecca Atadero., "April 2017.", Includes bibliographic references (pages 129-134), Report No. CDOT-2017-05, Online resource; title from PDF cover (viewed August 2019)
Robert B. McGennis, Robert R. Rask, Timothy B. Aschenbrener ; cooperative research performed jointly by Asphalt Institute [and] Department of Transportation, State of Colorado., Executive summary inserted., Technical Report number: CDOT-SM-AI-92-15., Includes bibliographical references., Print version record.
This report summarizes the analytical studies on the seismic performance of typical Colorado concrete bridges, particularly those with curved and skewed configurations. A set of bridge models with different geometric configurations derived from. a prototype bridge selected in Denver area were studied. Some discussions about the connection modeling are carried out in terms of the interior bent support. For the displacement-based and force-based designs, due to the lack of design details that without detailed analyses of all possible detailing options. Therefore, some general observations of these two design concepts are ummarized in the end of the report. In the appendices, the design examples of 2-span and 3-span bridges are listed to help the engineers to conduct bridge seismic analysis in Colorado., Suren Chen, Hussam Mahmoud, Thomas Wilson, Robert Johnson, Guangyang Houuthors., "January 2018.", Includes bibliographical references (pages 84-88), Report No. CDOT-2018-08, Online resource; title from PDF cover (viewed August 2019)
submitted to Colorado Department of Transportation/High Performance Transportation Enterprise ; Wilbur Smith Associates in association with All Traffic Data Services, Inc., Economic & Planning Systems, Inc., Felsburg, Holt and Ullevig, Resource Systems Group, Inc., "Final report.", Description based on online resource; title from PDF title page (viewed September 2013)
This study analyzes the effects of temperature change and thermal gradients on deck joint movement and provide recommendations regarding deck joint elimination. The data indicates that temperature shifts and thermal gradients through the depth of the girders along the joint are impacting the bridge's movements and causing changes in stress. A strong parallel is shown between the temperature changes and the study joint's movement and changes in stresses in the girders. Despite being clogged, the joints showed some movements, which corresponded to specific level of stresses in the adjacent girders, which was higher in the steel girders than the concrete girders., Hussam Mahmoud, Rebecca Atadero, Karly Rager, Aura Lee Harper Smith., "April 2018.", Report No. CDOT-2018-12, Online resource; title from PDF cover (viewed August 2019)
Cover title., La nueva ley de seguridad en Colorado para pasajeros infantiles -- Cómo mantengo seguro a me bebé? -- Cómo puedo proteger a mi hijo entre uno y cautro años de edad? -- Me hijo tiene mas de cuatro años pero menos de seis. -- Cuándo se debe usar cinturones de seguridad? -- Haciendo cumplir la ley de seguridad para pasajeros infantiles., Mode of access: World Wide Web.
