scholarly journals Impact of Wall Configurations on Seismic Fragility of Steel-Sheathed Cold-Formed Steel-Framed Buildings

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Liqiang Jiang ◽  
Jihong Ye
Keyword(s):  
Fragility Curves ◽  
Shaking Table ◽  
Seismic Fragility ◽  
Shaking Table Tests ◽  
Cold Formed Steel ◽  
Analytic Models

Seismic fragility of steel-sheathed cold-formed steel-framed (CFSF) structures is scarcely investigated; thus, the information for estimation of seismic losses of the steel-sheathed CFSF buildings is insufficient. This study aims to investigate the seismic fragility of steel-sheathed CFSF buildings with different wall configurations. Analytic models for four 2-story steel-sheathed CFSF buildings are established based on shaking table tests on steel-sheathed CFS walls. Then, a group of fragility curves for these buildings are generated. The results show that the thickness of steel sheathing and the fastener spacing of the wall have significant impact on seismic fragility of steel-sheathed CFSF buildings. The seismic fragility of the CFSF building can be reduced by increasing the thickness of steel sheathing or decreasing the fastener spacing. By increasing the thickness of steel sheathing, the reduction on probability is more obvious for the CP limit. It is also found that the exceeding probability is approximately linear with fastener spacing, with a slope in the range from 0.25%/mm to 0.50%/mm.

scholarly journals Seismic Fragility Assessment of an Isolated Multipylon Cable-Stayed Bridge Using Shaking Table Tests

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Yutao Pang
Keyword(s):  
Fragility Curves ◽  
Three Dimensional ◽  
Experimental Tests ◽  
Shaking Table ◽  
Seismic Fragility ◽  
Shaking Table Tests ◽  
Three Dimensional Model ◽  
Cable Stayed Bridge ◽  
High Flexibility ◽  
Cable Stayed Bridges

In recent decades, cable-stayed bridges have been widely built around the world due to the appealing aesthetics and efficient and fast mode of construction. Numerous studies have concluded that the cable-stayed bridges are sensitive to earthquakes because they possess low damping characteristics and high flexibility. Moreover, cable-stayed bridges need to warrant operability especially in the moderate-to-severe earthquakes. The provisions implemented in the seismic codes allow obtaining adequate seismic performance for the cable-stayed bridge components; nevertheless, they do not provide definite yet reliable rules to protect the bridge. To date, very few experimental tests have been carried out on the seismic fragility analysis of cable-stayed bridges which is the basis of performance-based analyses. The present paper is aimed at proposing a method to derive the seismic fragility curves of multipylon cable-stayed bridge through shake table tests. Toward this aim, a 1/20 scale three-dimensional model of a 22.5 m cable-stayed bridge in China is constructed and tested dynamically by using the shaking table facility of Tongji University. The cable-stayed bridge contains three pylons and one side pier. The outcomes of the comprehensive shaking table tests carried out on cable-stayed bridge have been utilized to derive fragility curves based on a systemic approach.

scholarly journals Seismic Vulnerability Assessment of Hybrid Mold Transformer Based on Dynamic Analyses

2019 ◽  
Vol 9 (15) ◽  
pp. 3180
Author(s):  
Ngoc Hieu Dinh ◽  
Joo-Young Kim ◽  
Seung-Jae Lee ◽  
Kyoung-Kyu Choi
Keyword(s):  
Analytical Model ◽  
Degrees Of Freedom ◽  
Seismic Vulnerability ◽  
Fragility Curves ◽  
Shaking Table ◽  
Exceedance Probability ◽  
Shaking Table Tests ◽  
Performance Levels ◽  
Analytical Results ◽  
Dynamic Analyses

In the present study, the seismic vulnerability of a hybrid mold transformer was investigated using a dynamic analytical approach incorporating the experimental results of shaking table tests. The analytical model consisted of linear springs and plastic beam elements, and it has six degrees of freedom simulating the hybrid mold transformer. The dynamic characteristics of the analytical model were determined based on the shaking table tests. The reliability of the analytical model was verified by comparing the test results and analytical results. In order to assess the seismic vulnerability, three critical damage states observed during the shaking table tests were investigated by incorporating the three performance levels specified in ASCE 41-17. Comprehensive dynamic analyses were performed with a set of twenty earthquakes in consideration of the variation of the uncertain parameters (such as the effective stiffness and coil mass) of the mold transformer. Based on the analytical results, fragility curves were established to predict the specified exceedance probability of the mold transformer according to the performance levels.

11.01: Shaking table tests on cold-formed steel building sheathed with gypsum panels

ce/papers ◽  
2017 ◽  
Vol 1 (2-3) ◽  
pp. 2847-2856 ◽  
Author(s):  
Vincenzo Macillo ◽  
Bianca Bucciero ◽  
Maria Teresa Terracciano ◽  
Tatiana Pali ◽  
Luigi Fiorino ◽  
...  
Keyword(s):  
Shaking Table ◽  
Shaking Table Tests ◽  
Steel Building ◽  
Cold Formed Steel

scholarly journals Low-cost hybrid design of masonry structures for developing countries: Shaking table tests

2021 ◽  
Vol 146 ◽  
pp. 106675
Author(s):  
Anastasios Tsiavos ◽  
Anastasios Sextos ◽  
Andreas Stavridis ◽  
Matt Dietz ◽  
Luiza Dihoru ◽  
...  
Keyword(s):  
Developing Countries ◽  
Low Cost ◽  
Shaking Table ◽  
Hybrid Design ◽  
Masonry Structures ◽  
Shaking Table Tests

Shaking-table tests of seismic responses of slender intake tower-hoist chamber systems

2021 ◽  
Vol 242 ◽  
pp. 112517
Author(s):  
Hanyun Zhang ◽  
Cai Jiang ◽  
Shuming Liu ◽  
Liaojun Zhang ◽  
Chen Wang ◽  
...  
Keyword(s):  
Shaking Table ◽  
Shaking Table Tests ◽  
Seismic Responses

Shaking table tests on the seismic responses of underground structures in coral sand

2021 ◽  
Vol 109 ◽  
pp. 103775
Author(s):  
Xuanming Ding ◽  
Yanling Zhang ◽  
Qi Wu ◽  
Zhixiong Chen ◽  
Chenglong Wang
Keyword(s):  
Shaking Table ◽  
Shaking Table Tests ◽  
Seismic Responses ◽  
Underground Structures ◽  
Coral Sand

scholarly journals An approach to derive seismic fragility curves

2021 ◽  
Vol 1026 (1) ◽  
pp. 012007
Author(s):  
V J Vedhanayaghi ◽  
M Manoharan ◽  
J Jasper Daniel ◽  
S Premkumar ◽  
S ArunBharathi
Keyword(s):  
Fragility Curves ◽  
Seismic Fragility
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