scholarly journals The specification of earthquake resistance for electricity system equipment

1973 ◽  
Vol 6 (4) ◽  
pp. 178-207
Author(s):  
H. C. Hitchcock
Keyword(s):  
Seismic Design ◽  
Earthquake Engineering ◽  
Earthquake Resistance ◽  
Design Code ◽  
Circuit Breakers ◽  
Large Structures ◽  
Electricity System ◽  
Seismic Design Code ◽  
Adequate Understanding ◽  
Design Factors

The paper reports the development of earthquake resistance requirements in New Zealand Electricity Department specifications since 1968. It quotes clauses, as issued for high voltage circuit breakers and for power transformers to illustrate the special requirements of brittle structures and of flexibly mounted
massive items. The earthquake clauses for 250MW turbogenerators draw attention to the special susceptability of low tuned supports, while the clauses for the steamraising units emphasise the importance and the difficulties of achieving adequate ductile performance of such large structures during earthquakes. A method is presented, of choosing seismic design factors for parts of buildings and of appendages according to dynamic and material properties and height above ground. The paper describes some of the intellectual obstacles for
power engineers wishing to achieve adequate understanding of earthquake engineering - the view that "earthquakes are only for Civil Engineers", the idea that a simple, low seismic factor will by itself, ensure resistance to earthquakes, the erroneous concentration on "the frequency of the earthquake", the limited knowledge of many manufacturers and most of all the false assurances of the concept of "factor of safety" when linked to a seismic design code based on the assumption that structures possess ductility.

Discussion and Method on Performance Based Seismic Design for Concrete-Filled Steel Tubular Structures

2010 ◽  
Vol 163-167 ◽  
pp. 372-375
Author(s):  
Wen Da Wang ◽  
Xiu Li Xia ◽  
Yan Li Shi
Keyword(s):  
Seismic Design ◽  
Earthquake Engineering ◽  
Tubular Structures ◽  
Design Code ◽  
Theory Analysis ◽  
Rc Structures ◽  
Engineering Research ◽  
Seismic Design Code ◽  
Specific Performance ◽  
Performance Based Seismic Design

The theory of performance-based seismic design (PBSD) is the key issue for the modern earthquake engineering research. With comparison of the traditional prescriptive seismic design code based on the bearing capacity design, the PBSD method presents the specific performance object for the buildings. On the base of the background and development of the PBSD about reinforced concrete (RC) structures, some researches and design approaches of PBSD were proposed for the concrete-filled steel tubular (CFST) structures based on the research results on PBSD of RC structures and the mechanical behavior of CFST structures. Some theory analysis was performed to investigate the PBSD performance of CFST structures. This is referred to further study on PBSD for CFST structures.

scholarly journals Loss assessment of building and content damages from potential earthquake risk in Seoul, Korea

2018 ◽  
Author(s):  
Wooil Choi ◽  
Jae-Woo Park ◽  
Jinhwan Kim
Keyword(s):  
Seismic Design ◽  
Korean Peninsula ◽  
Financial Stability ◽  
Building Code ◽  
Earthquake Risk ◽  
Design Code ◽  
Loss Assessment ◽  
Damage State ◽  
Damage Functions ◽  
Seismic Design Code

Abstract. After the 2016 Gyeongju earthquake and the 2017 Pohang earthquake struck the Korean peninsula, securing financial stability for earthquake risk has become an important issue in Korea. Many domestic researchers are currently studying potential earthquake risk. However, empirical analysis and statistical approach are ambiguous in the case of Korea because no major earthquake has ever occurred on the Korean peninsula since Korean Meteorological Agency started monitoring earthquakes in 1978. This study focuses on evaluating possible losses due to earthquake risk in Seoul, the capital of Korea, by using catastrophe model methodology integrated with GIS (Geographic Information System). The building information such as structure and location is taken from the building registration database and the replacement cost for building is obtained from insurance information. As the seismic design code in KBC (Korea Building Code) is similar to the seismic design code of UBC (Uniform Building Code), the damage functions provided by HAZUS-MH are used to assess the damage state of each building in event of an earthquake. 12 earthquake scenarios are evaluated considering the distribution and characteristics of active fault zones in the Korean peninsula, and damages with loss amounts are calculated for each of the scenarios.

Seismic Proving Test of Eroded Piping: Status of Eroded Piping Component and System Test

2003 ◽  
Author(s):  
Y. Namita ◽  
K. Suzuki ◽  
H. Abe ◽  
I. Ichihashi ◽  
M. Shiratori ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Ultimate Strength ◽  
Seismic Design ◽  
Plastic Response ◽  
Design Code ◽  
Seismic Safety ◽  
Testing Program ◽  
Safety Margins ◽  
Seismic Design Code ◽  
Piping Systems

In FY 2000, a 3-year testing program of eroded piping was initiated with the following objectives: 1) to ascertain the seismic safety margins for eroded piping designed under the current seismic design code, 2) to clarify the elasto-plastic response and ultimate strength of eroded nuclear piping. A series of tests on eroded piping components and eroded piping systems was planned. In this paper, the results of those tests are presented and analyzed, focusing on the influence of the form and the number of thinned-wall portions on the fatigue life of the piping.

Seismic Proving Test of Eroded Piping: Program of Eroded Piping Tests

2002 ◽  
Author(s):  
Y. Namita ◽  
K. Suzuki ◽  
H. Abe ◽  
I. Ichihashi ◽  
M. Shiratori ◽  
...  
Keyword(s):  
Ultimate Strength ◽  
Seismic Design ◽  
Plastic Response ◽  
Design Code ◽  
Seismic Safety ◽  
Safety Margins ◽  
Seismic Design Code ◽  
Piping Systems

In 2000FY, a 3 year program of eroded piping tests was initiated with the following objectives: 1) to ascertain the seismic safety margins for eroded piping designed under the current seismic design code, 2) to clarify the elasto-plastic response and ultimate strength of eroded nuclear piping. It was intended to carry out a series of tests on eroded piping components and eroded piping systems. This paper is a report on the program of eroded piping tests.

scholarly journals Study on Optimization Seismic Design of Tall Building Structure

2015 ◽  
Vol 4 (2) ◽  
pp. 17
Author(s):  
Lei Yang
Keyword(s):  
Seismic Design ◽  
Optimization Design ◽  
Engineering Practice ◽  
Building Structure ◽  
Design Code ◽  
Stage Design ◽  
High Rise ◽  
Seismic Design Code ◽  
Earthquake Performance ◽  
Property Losses

<p>The heavy casualties and property losses caused by the earthquake this huge disaster, making high-rise building seismic become the focus of attention. Our new building seismic design code (GB50011-2001) (hereinafter referred to as "Seismic Design Code”) continue to be used (GBJ-89) specification to determine the "three earthquake performance objectives, two-stage design step" seismic design, and made many important supplement and perfect. The new seismic design of buildings in terms of requirements for introducing means as constraints optimization design, optimization design closer to engineering practice.</p>

The Current Development of Seismic Design Code of Highway Bridges in Taiwan

2002 ◽  
Author(s):  
W. I. Liao ◽  
C. H. Loh ◽  
J. F. Chai
Keyword(s):  
Seismic Design ◽  
Highway Bridges ◽  
Seismic Demand ◽  
Ultimate Capacity ◽  
Current Development ◽  
Design Code ◽  
Near Fault ◽  
Seismic Design Code ◽  
Check Method

This paper describes the development of seismic design provisions of highway bridges will be revised in Taiwan reflecting the destructive damage in the 1999 Chi-Chi earthquake. After the Chi-Chi earthquake, the revised seismic design force and other related requirements in the seismic design code for highway bridges are developed in Taiwan. In addition to the conventional force based design, a capacity checking level is considered for the near-fault sites by limiting the ultimate capacity to exceed the maximum possible seismic demand. The development of seismic design force and the capacity check method are described.

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