scholarly journals Ground motion following selection of SRS design basis earthquake and associated deterministic approach. Final report: Revision 1

1991 ◽  
Author(s):  
◽  
Keyword(s):  
Ground Motion ◽  
Final Report ◽  
Deterministic Approach ◽  
Design Basis ◽  
Selection Of

Digital platforms under fire: What Australia can learn from recent developments in Europe

2018 ◽  
Vol 43 (4) ◽  
pp. 275-282
Author(s):  
Samson Esayas ◽  
Dan Svantesson
Keyword(s):  
Court Decision ◽  
Final Report ◽  
Court Decisions ◽  
Clear Trend ◽  
Digital Platforms ◽  
Recent Developments ◽  
Selection Of

There is a clear trend of a hardening attitude towards digital platforms. In Australia this trend is exemplified by the Australian Competition and Consumer Commission’s current inquiry specifically into digital platforms. Further, it can also be seen in court decisions. Having discussed one such court decision, we give a brief overview of the Australian Competition and Consumer Commission’s digital platforms inquiry. We then seek to bring attention to a selection of particularly relevant European developments that may usefully inform how Australia proceeds in this arena and that may be considered in the Australian Competition and Consumer Commission’s final report due to be provided to the Treasurer on 3 June 2019.

A Comparative Investigation of Structural Performance of Typical and Non-Ducitle Public RC Buildings Strengthened Using Friction Dampers and RC Walls

2017 ◽  
pp. 112-127 ◽  
Author(s):  
Erkan Akpinar ◽  
Seckin Ersin
Keyword(s):  
Ground Motion ◽  
Comparative Investigation ◽  
Rc Buildings ◽  
Post Intervention ◽  
Friction Dampers ◽  
History Analysis ◽  
Response History Analysis ◽  
Nonlinear Static ◽  
Selection Of

Strengthening of non-ductile public buildings is a never-ending issue. Selection of the suitable strengthening method and appropriate analysis type for the assessment of pre- and the post-intervention performances are still open to question. The displacement or drift limitations are crucial as well as demand capacity ratios for determination of such buildings performance under severe ground motion. In this chapter, an investigation of seismic performance focused on displacement criterion of strengthened non-ductile public RC buildings in Turkey is presented. Both the nonlinear static and response history analysis were conducted. Friction dampers which are fairly modern technique and conventional RC wall implementation method were introduced to as-is building. For the simplicity and the easy of the process, 2D frame selected for investigation. Comparison of the aforementioned techniques for non-ductile public RC buildings and performances particularly by means of displacement obtained using different methods for those investigated schemes are carried out and presented in the chapter.

A Comparative Investigation of Structural Performance of Typical and Non-Ducitle Public RC Buildings Strengthened Using Friction Dampers and RC Walls

2019 ◽  
pp. 1073-1089
Author(s):  
Erkan Akpinar ◽  
Seckin Ersin
Keyword(s):  
Ground Motion ◽  
Comparative Investigation ◽  
Rc Buildings ◽  
Post Intervention ◽  
Friction Dampers ◽  
History Analysis ◽  
Response History Analysis ◽  
Nonlinear Static ◽  
Selection Of

Strengthening of non-ductile public buildings is a never-ending issue. Selection of the suitable strengthening method and appropriate analysis type for the assessment of pre- and the post-intervention performances are still open to question. The displacement or drift limitations are crucial as well as demand capacity ratios for determination of such buildings performance under severe ground motion. In this chapter, an investigation of seismic performance focused on displacement criterion of strengthened non-ductile public RC buildings in Turkey is presented. Both the nonlinear static and response history analysis were conducted. Friction dampers which are fairly modern technique and conventional RC wall implementation method were introduced to as-is building. For the simplicity and the easy of the process, 2D frame selected for investigation. Comparison of the aforementioned techniques for non-ductile public RC buildings and performances particularly by means of displacement obtained using different methods for those investigated schemes are carried out and presented in the chapter.

Development of a Risk-Informed IST Program at Palisades Using Top Event Prevention

2002 ◽  
Author(s):  
Robert A. White ◽  
David P. Blanchard
Keyword(s):  
Nuclear Power ◽  
Deterministic Approach ◽  
Testing Methods ◽  
Service Testing ◽  
Risk Ranking ◽  
Safety Consideration ◽  
Defense In Depth ◽  
Traditional Approaches ◽  
Ranking Technique ◽  
Selection Of

At the Palisades Nuclear Power Plant, a review of systems, structures and components is being performed for a variety of risk-informed applications. Among these applications is the In-Service Testing program developed under Section XI of the ASME Boiler and Pressure Vessel Code. In reviewing the scope of the IST program, a relatively new risk ranking technique is being utilized called Top Event Prevention (TEP). TEP differs from more traditional methods of risk ranking in that it uses defense-in-depth methods to select what SSCs are important to safety. The results of the TEP analysis are also somewhat unique as compared to more traditional approaches in that combinations of equipment important to safety are identified as opposed to determining importance one component at a time. In addition, entire paths or trains of equipment are identified as being required to manage safety. Furthermore, the components identified in the selected trains are minimal. That is, TEP identifies the minimum set of equipment modeled in the PRA that is necessary to manage safety. Because TEP provides a structured, deterministic approach to selection of components that are important to managing safety, consideration is being given to classifying pumps and valves into one of three safety categories; high safety significant components, low safety significant components and a third non safety significant category. The first two categories of safety significance are similar to those already defined in Regulatory Guide 1.175 [1], and will identify where current testing methods remain appropriate while suggesting those components for which testing intervals can be extended. The third or non-safety significant category has been established to identify those pumps and valves to which the PRA and safety are insensitive. Preliminary results from the TEP analysis of the Palisades IST scope suggest that of the more than 500 pumps and valves modeled in the PRA, just under one third are not important from a defense-in-depth perspective. Probabilistic testing of these approximately 140 components shows that risk as modeled by the PRA is not dependent on the reliability of these components. This suggests that the PRA is relatively insensitive to the reliability of these components collectively and that they can be considered as candidates for significant relaxation of testing requirements, possibly including exclusion from the formal IST program.

Sign in / Sign up

Export Citation Format

Share Document