Development of Seismic Safety Evaluation Indices for Dual-Plane, Cable-stayed Bridges With H-type Pylons

2019 ◽  
Vol 23 (5) ◽  
pp. 261-268
Author(s):  
Chimedsuren Solongo ◽  
◽  
Hyo Joon An ◽  
Soobong Shin
2011 ◽  
Vol 255-260 ◽  
pp. 4212-4216
Author(s):  
Gong Yuan Xie ◽  
Zhang Yue

Risk matrix is applied to evaluate seismic risk on mountainous bridge. In this article, a continuous bridge is used as example to analyze the seismic risk of key position under a usual earthquake. Related control method is proposed to provide technical support for bridge seismic design and operation maintenance.


Author(s):  
Ryo Morita ◽  
Fumio Inada ◽  
Michiya Sakai ◽  
Shin-ichi Matsuura ◽  
Shigenobu Onishi ◽  
...  

For seismic safety evaluation of piping system with local thinning surface by liquid droplet impingement erosion (LDI), hybrid seismic tests were conducted to the piping with a locally-thinned elbow. In this paper, a method for predicting the thinning shape by LDI on the elbow is developed. To determine the thinning shape by LDI, droplet behavior at the elbow is calculated for various flow conditions and geometries. With the calculation of the collision point and velocity for each droplet, collision frequency and average collision velocity on the elbow are estimated. Then, the thinning shape on the elbow is determined with the relationship between the flow conditions and thinning rate. Finally, the evaluated thinning shape is compared with an actual LDI case for the validation of the method.


Buildings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 158
Author(s):  
Cristina Cantagallo ◽  
Enrico Spacone ◽  
Daniele Perrucci ◽  
Nicola Liguori ◽  
Clara Verazzo

This study outlines a procedure for the seismic safety evaluation of historical buildings for engineers and architects that commonly work on buildings belonging to cultural and architectural heritage. The procedure is characterized by two interrelated phases: (a) building knowledge acquisition and (b) structural behavior analysis and safety assessment. The seismic safety evaluation strongly depends on the first phase, whose data can be obtained according to a multi-disciplinary approach based on five steps: (1) critical-historical analysis; (2) photographic documentation and geometrical survey; (3) structural identification and material survey; (4) foundation and soil survey; and (5) cracking pattern and structural integrity analysis. The proposed method was applied to the evaluation of the seismic safety of the Castle of Melfi (PZ, Italy). Comprehensive and multi-disciplinary knowledge of this monument greatly facilitated an accurate seismic analysis of this monument, which was conducted both at a local and global level using a linear kinematic analysis and non-linear static (pushover) analysis, respectively.


2016 ◽  
Vol 2016 (0) ◽  
pp. J1010102
Author(s):  
Masaki MORISHITA ◽  
Akihito OTANI ◽  
Tomoyoshi WATAKABE ◽  
Izumi NAKAMURA ◽  
Masaki SHIRATORI

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