H형 주탑 2면 사장교의 지진 안전성 평가지표 개발 = Development of Seismic Safety Evaluation Indices for Dual-Plane, Cable-stayed Bridges With H-type Pylons

다국어 초록 (Multilingual Abstract)

This paper proposes damage indices efficient on evaluating the seismic safety of cable-stayed bridges, especially dual-plane, cable-stayed bridges with H-type pylons. The research assumes that the location of accelerometers is already defined as given in the 2017 Ministry of the Interior and Safety (MOIS) guideline. In other words, the paper does not attempt to suggest optimal sensor location for the seismic safety evaluation of cable-stayed bridges. The proposed damage indices are based on those for building structures widely applied in the field already. Those include changes in natural frequencies and changes in relative lateral displacements. In addition, the study proposes other efficient damage indices as the rotation changes at the top of pylons and in the midspan of the girder system. Sensitivity analysis for various damage indices is performed through dynamic analysis using selected earthquake ground motions. The paper compares the effectiveness of the damage indices.

참고문헌 (Reference)

1 Ministry of Land Infrastructure and Transport, "the Limit-State based Bridge Design Specification - Cable Bridge 2016"

2 Anastasopoulos I, "Simple method for real-time seismic damage assessment of bridges" 78 : 201-212, 2015

3 Liel AB, "Lessons learned from seismic collapse assessment of buildings for evaluation of bridge structures" 1151-1162, 2009

4 Ministry of the Interior and Safety, "Installation and operation standard of seismic accelerometer sensors 2017, article 22, location and number of seismic acceleration sensors installations" 6-, 2017

5 Chiu JM, "Estimation of regional seismic hazard in the Korean peninsula using historical earthquakes data between A.D.2and 1995" 94 (94): 269-284, 2004

6 Korea Meteorological Administration, "Earthquake Report 2017" 2017

7 Carreno ML, "Computational tool for post-earthquake evaluation of damage in buildings" 26 (26): 63-86, 2010

8 Zhu L, "Classification and seismic safety evaluation of existing reinforced concrete columns" 133 (133): 2007

9 윤성원, "3층 철근콘크리트조 건물의 손상전후의 진동특성" 한국공간구조학회 9 (9): 59-66, 2009