Pre-stressed Concrete Large-diameter Pipes: Joint Behaviour During
Earthquakes
Author(s)
R. Viparelli, A. De Luca, S. Santorelli, A.G. Pizza
Abstract
Pre-stressed concrete large-diameter pipes:
joint behaviour during earthquakes
R. Viparelli*, A. De Luca\ S. Santorelli*, A. G. Pizza^
*Facolta Ingegneria-Universita Basilicata, Potenza, Italy
^Facolta Ingegneria-Universita "Federico H", Naples, Italy
^Servizio Sismico Nazionale, Rome, Italy
Abstract
The full efficiency of a pipeline after an earthquake is crucial for the
delivery of necessary supplies under maximal emergency conditions. The
paper tackles the problem of mechanic reliability of large-diameter pre-
stressed concrete bell-and-spigot joints. In previous works [7,8] a new
methodology, relying on a totally new approach, was developed for the
calculation of pipelines. The pipeline is assumed to consist of a
continuum of several sections, each with its own resistance to axial or
bending stress; under seismic conditions, it is possible to evaluate the
different vibrating modes, with related circular frequencies and
contributing factors. Such evaluations allow rotati
Keywords
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