Nonlinear analysis of sleeper-supported piping

Book · Wed Nov 01 04:00:00 EST 1995

OSTI ID:124709

Zhou, Z J; Kormann, P ^[1]

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1. NOVA Gas Transmission Ltd., Calgary, Alberta (Canada)

Sleeper-support is a type of small concrete block foundations which is often used to support buried yard piping at gas compressor stations. The contact condition imposes high local stress which is one of the major design considerations in determining the maximum force that the piping can tolerate, and therefore, the support spacing. NGTL (Nova Gas Transmission Ltd.) has developed a simple equation to determine the support spacing of sleeper-support. This equation has been extensively used in NGTL`s practices and proven to be safe and adequate. However, it is believed to be overly conservative which leads to unwarranted costs. To better understand the structural behavior of sleeper-supported piping, nonlinear elastic-plastic analysis was carried out based on a finite element model. Results of a typical unpressurized pipe are presented in this paper. These include stress distributions, deformation patterns, force-stress relationships and force-displacement relationships.

• OSTI ID: 124709
• Report Number(s): CONF-950740--; ISBN 0-7918-1332-0
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
BOUNDARY CONDITIONS
DEFORMATION
DESIGN
EXPERIMENTAL DATA
FINITE ELEMENT METHOD
NATURAL GAS DISTRIBUTION SYSTEMS
PIPELINES
RESPONSE FUNCTIONS
STATIC LOADS
STRAINS
STRESS ANALYSIS
STRESSES
SUPPORTS