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- W622960081 abstract "The work plan for the design of the McLennan County prestressed concrete pavement (PCP) overlay consisted of three distinct aspects: (a) a thorough review of the available literature on design of pcp to determine the variables that are relevant to the design of slab length, joint details, thickness and prestress level in the longitudinal and transverse directions, (b) development of models and procedures for accurately predicting the effect of these variables on the elements of the pcp structure, and (c) development of a pcp design based on (a) and (b) to implement in the project. The design of the pcp slabs was also to include recommendations with regard to adequate time of slab placement and application of prestress forces. The completion of aspects (a) through (c) led to the study of the effect of environmental factors on pcp slabs. Environmental variables producing movements, stresses and deflections in the slabs are: (1) changes of temperature and moisture content of the pavement; (2) curling produced by temperature differentials from top to bottom of slabs; and (3) warping produced by top to bottom moisture differentials. The main objective of this study is to present the development of a model to predict the behavior of long PCP slabs and incorporate the predictions from the model into a design procedure. In this study, the derivation of a model for friction considering its inelastic nature is presented. The working scheme of computer program PSCP1 which incorporates the major findings from this study is also shown. The information generated by the program can be used for designing thickness, prestress level and slab length of the PCP. To check the reliability of the models inside pscp1, a comparison of predicted responses from the model is made against responses observed at the mclennan county PCP overlay. A scheme for a design methodology based on design charts and predictions from computer program PSCP1 is finally presented (a)." @default.
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- W622960081 date "1986-09-01" @default.
- W622960081 modified "2023-09-27" @default.
- W622960081 title "Behaviour of long prestressed pavement slabs and design methodology" @default.
- W622960081 hasPublicationYear "1986" @default.
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