Abstract： ASME B31E:2008 pdf download.Standard for the Seismic Design and Retrofit of Above-Ground Piping Systems. noncritical piping: piping system other than critical piping that nevertheless must meet the requirements for position retention. opera...

ASME B31E:2008 pdf download.Standard for the Seismic Design and Retrofit of Above-Ground Piping Systems.

noncritical piping: piping system other than critical piping that nevertheless must meet the requirements for position retention.

operability: the ability of a piping system to deliver, con- (ml (throttle), or shut off flow during or after the design

earthquake.

position trfrntion: the ability of a piping system not to fall or collapse in case of design earthquake.

seismic design: the activities necessary to demonstrate that a piping system can perform its intended function (position retention, leak tightness, operability or a combination) in case of design earthquake.

seisnncfunctwn: a function to be specified by the engineering design either as position retention, leak tightness, or operability.

seisnhic interactions: spatial or system interactions with other structures, systems, or components that may affect the function of the piping system.

seisnzic response spectra: a plot or table of accelerations, velocities, or displacements versus frequencies or periods.

seismic restraint: a device intended to limit seismic movement of the piping system.

seismic retrofit: the activities involved in evaluating the seismic adequacy of an existing piping system and identifying the

changes or upgrades required for the piping system to perform its seismic function.

seismic static cocdcnt: acceleration or force statically applied to the piping system to simulate the effect of the earthquake.

1.3 Required Input

(a) The scope and boundaries of piping systems to be seismically designed or retrofitted,

(b) The applicable ASME B31 Code section.

(c) The classification of piping as critical or noncritical, and the corresponding seismic function (position retention for

noncritical systems; degree of leak tightness, operability, or both for critical systems).

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