Some aspects of composite circular sewer linings under installation conditions

The paper describes the results of both experimental tests and numerical parametric studies aimed at a better understanding of the structural behaviour of closely packed circular-shaped sewer linings. First, the structural responses of complete and segmental linings are compared analytically. Then,...

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Bibliographic Details
Published in:Engineering structures 1999, Vol.21 (1), p.5-15
Main Authors: Pavlović, M.N., Arnaout, S., Seraj, S.M.
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Circular sewer linings
Exact sciences and technology
Installation conditions
Sewerage. Sewer construction
Stresses. Safety
Structural analysis. Stresses
Temporary restraints
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Summary:The paper describes the results of both experimental tests and numerical parametric studies aimed at a better understanding of the structural behaviour of closely packed circular-shaped sewer linings. First, the structural responses of complete and segmental linings are compared analytically. Then, vacuum tests carried out on circular glass-reinforced plastic linings to simulate the effect of grouting the annulus gap during installation are reported. Finally, the effect of various restraint conditions, which simulate different temporary support systems that may be used by the contractors during installation of the lining, are investigated; in view of the predominantly membrane response of circular linings to continuous (i.e. flotation and uniform-pressure) loading, approximate design curves, based on a simplified buckling criterion, are presented.
ISSN:0141-0296
1873-7323
DOI:10.1016/S0141-0296(97)00135-1