BASIS OF THE UPCOMING CHANGES TO PIPING SEISMIC DESIGN RULES IN THE ASME BPVC SECTION III, DIVISION 1, ARTICLE NB-3200

被引:0
|
作者
Adams, Timothy M. [1 ]
机构
[1] Stevenson & Associates, 6611 Rockside Rd,Suite 110, Independence, OH 44131 USA
来源
ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2015, VOL 1B | 2015年
关键词
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
When the piping seismic design rules of the ASME Boiler and Pressure Vessel Code, Section III, Division 1 Subsections NB, NC, and ND were updated in 1994 a strain based criterion was incorporated in Article NB-3200. Due to objections to this criterion by the USNRC they were subsequently removed and replaced by guidance which stated that for Article NB-3200 for Service Level C and D reversing dynamic loads use the simplified design rules of Article NB-3600. The use of simplified Article NB-3600 rules in the NB-3200 design by analysis Article is inconsistent with the philosophy of NB-3200 and precludes the analyst from using detailed analysis methods for piping for Service Level C and D reversing dynamic loads. In 2012 an effort was undertaken to develop a more detailed design by analysis criteria for reversing dynamic loads. This paper provides the background and basis for changes that are anticipated to be implemented in the near future in the ASME Boiler and Pressure Vessel Code, Section III, Division 1 for the design by analysis rules of Article NB-3200 for reversing dynamic loads in piping systems.
引用
收藏
页数:3
相关论文
共 13 条