Alternate procedures for the seismic analysis of multiply supported piping systems
Independent support motion methodologies have been used to analyse piping systems subjected to multiple support excitations. Methods to compute both the dynamic and pseudo-static components of response were investigated. In order to formulate a general procedure for predicting seismic response, a sample of six piping systems, two of which were subjected to thirty-three earthquakes, were analyzed. The dynamic component of response was evaluated considering fourteen variations of the combination sequence and procedure between modes, directions and support groups. The pseudo-static component of response was predicted using, five different methods consituting nine different cases. In addition, a combination procedure between the two response components was developed in order to obtain the total seismic response. The study also provides a comparison of the above results with time history results as well as with results developed using the current SRP methodology. Recommendations concerning the use of independent support motion methods in the evaluation of piping response are included.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6237345
- Report Number(s):
- NUREG/CR-3811; BNL-NUREG-51773; ON: TI85001457
- Country of Publication:
- United States
- Language:
- English
Similar Records
Alternate procedures for the seismic analysis of multiply supported piping systems
Development of methods to predict both the dynamic and the pseudo-static response of secondary structures subjected to seismic excitations