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RISS 인기검색어
- 검색키워드
- 저자 : Medina Chavez, Cesar Ivan (검색결과 1 건)
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Medina Chavez, Cesar Ivan The University of Texas at Austin 2003 해외박사(DDOD)
Prestressed Concrete Pavement (PCP) has been around for almost 60 years. Its application started in Europe in the 1940s, and since has been applied with fair success in other countries, including the United States. Domestic application of this technology has been limited for different reasons, mainly due to the lack of well defined or standard design and construction procedures. In the United States, PCPs have been constructed in Pennsylvania, Mississippi, Arizona, Illinois, and Texas. In 1985, the Center for Transportation Research (CTR) at the University of Texas at Austin designed and constructed a one-mile PCP section that, after more than 17 years of service under heavy traffic loads, is still in very good condition. Although the overall performance of the PCP constructed in Texas has surpassed expectations, there are still design and construction flaws that need to be corrected. In 1999, the Texas Department of Transportation (TxDOT) funded a research project that required the design and construction of a new improved PCP section in Texas. The work presented herein attempts to provide a design methodology and preliminary construction guidelines and specifications for a generic PCP. Additionally, the study implements the design procedure for a PCP to be constructed on Highway IH35 in Hillsboro, Texas. It is believed that this investigation will provide valuable information and a positive step towards the standardization of the PCP application. The results from the study show that PCP construction is very promising and provides long-term low-maintenance pavements at a competitive life cycle cost. During the last few years, there has been an embracing trend for this paving technology and it is hoped that the outstanding performance of several previous projects and lessons learned from the not-so-successful projects will lead to new improvements to PCP methods of design and construction that will produce high performance pavements.
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