American Society of Civil Engineers


Full Scale Test Installation for Reinforced Concrete Pipe


by Hany Maximos, M.ASCE, (Ph.D. Candidate, Department of Civil Engineering, University of Nebraska-Lincoln, 1110 south 67th street, Omaha, NE 68182-0178 E-mail: hmaximos@mail.unomaha.edu), Ece Erdogmus, M.ASCE, (Assistant Professor, Department of Architectural Engineering at University of Nebraska - Lincoln, Omaha, NE. E-mail: eerdogmus@mail.unomaha.edu), and Maher Tadros, M.ASCE, (Professor of Civil Engineering, Department of Civil Engineering at University of Nebraska - Lincoln, Omaha, NE E-mail: mtadros@mail.unomaha.edu)

pp. 1-10, (doi:  http://dx.doi.org/10.1061/40994(321)40)

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Document type: Conference Proceeding Paper
Part of: Pipelines 2008: Pipeline Asset Management: Maximizing Performance of our Pipeline Infrastructure
Abstract: An experimental reinforced concrete pipe (RCP) installation is designed by University of Nebraska - Lincoln researchers and installed at the landfill of Lincoln, NE. The pipe installation consists of eight pipe segments, 48 in. (1219.2 mm) in diameter, installed under fill heights ranging from 5 ft (152.4 cm) to 20ft (609.6 cm). Pipe was designed according to a proposed design methodology, where, mostly the direct design method is followed while the 0.01" (0.254 mm) crack control criteria is eliminated. Four of the eight segments were over designed and the other four were under designed in terms of the height of fill they carry. Pipe segments were instrumented by eighty vibrating wire strain gages, and sixteen earth pressure cells. Field readings were obtained and monitored. The study is currently undergoing and the paper presents up-to-date findings of the experimental observations as well as inferences made regarding the RCP design considerations. Projected conclusions are such that the current design methods and criteria used for designing RCP are overly conservative.


ASCE Subject Headings:
Concrete pipes
Full-scale tests
Installation
Reinforced concrete
Scale ratio