Shake Table Studies of Seismic Structural Systems of a Taizhou Changjiang Highway Bridge Model

Li, Jianzhong; Yan, Jukao; Peng, Tianbo; Han, Lei

doi:10.1061/(asce)be.1943-5592.0000650

Cited by 50 publications

(18 citation statements)

References 9 publications

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“…Given S l is determined, this goal could be achieved by reducing S E or enlarging S a . According to references, S E could be designed as small as 0.3 using microconcrete materials, yet the model mass will still be too large. Therefore, to further reduce the model mass, S a is fixed as 2.…”

Section: Test Setupmentioning

confidence: 99%

“…This study reports a shake table test of a half structure model of a six‐pylon extra‐dosed cable‐stayed bridge isolated by optimized CSFABs. The test was conducted at the Multifunctional Shake Tables Laboratory of Tongji University in which the shake table test system is composed of four independent shake tables. Multiple shake table test method was chosen to conduct this test due to its ability to carry large‐scale bridge model, which can help avoid size effects on the results and make the test findings closer to engineering practice.…”

Section: Introductionmentioning

confidence: 99%

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Case study of the seismic response of an extra‐dosed cable‐stayed bridge with cable‐sliding friction aseismic bearing using shake table tests

Yang

Pang

Tian

et al. 2017

Structural Design Tall Build

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Section: Test Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Case study of the seismic response of an extra‐dosed cable‐stayed bridge with cable‐sliding friction aseismic bearing using shake table tests

Yang

Pang

Tian

et al. 2017

Structural Design Tall Build

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show abstract

“…To recognize all nonlinear response of cable-stayed bridges subjected to near-field ground motions, one of the most obvious and effective ways is through shake table tests. Shake table tests can excite structures in such a way that they are subjected to conditions representing true earthquake ground motions and verify the analysis results from different numerical methods, as the case of Jindo Bridge [15] and Taizhou Changjiang Bridge [16]. Several shake table tests have been conducted regarding structural damage of cable-stayed bridges under earthquakes.…”

Section: Introductionmentioning

confidence: 99%

Longitudinal Seismic Behavior of a Single-Tower Cable-Stayed Bridge Subjected to Near-Field Earthquakes

Jiao

2017

Shock and Vibration

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Cable-stayed bridges are quite sensitive to large amplitude oscillations from earthquakes and seismic damage was observed for Shipshaw Bridge and Chi-Lu Bridge during past earthquakes. In order to investigate seismic damage of cable-stayed bridges, a 1 : 20 scale model of a single-tower cable-stayed bridge with A-shaped tower was designed, constructed, and tested on shake tables at Tongji University, China. One typical near-field ground motion was used to excite the model from low to high intensity. Test result showed that severe structural damage occurred at the tower of the model including parallel concrete cracks from bottom to nearly half height of the tower, concrete spalling, and exposed bars at top tower 0.2 m above the section where two skewed legs intersect. Posttest analysis was conducted and compared with test results. It is revealed that the numerical model was able to simulate the seismic damage of the test model by modeling nonlinearity of different components for cable-stayed bridges, namely, the tower, bents, superstructure, cables, and bearings. Numerical analysis also revealed that cable relaxation, which was detected during the test, had limited influence on the overall seismic response of the bridge with maximum error of 12%.

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“…With regard to the shake table test of cable-stayed bridges, few studies have proposed to investigate the seismic behavior of cable-stayed bridges. Li et al [12] conducted the shake table studies of seismic structural systems of a Taizhou Changjiang Highway Bridge model. Wang et al [13] investigated the transverse seismic behavior of a medium-span cable-stayed bridge model with two concrete towers.…”

Section: Introductionmentioning

confidence: 99%

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

Pang

2017

Advances in Civil Engineering

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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.

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Shake Table Studies of Seismic Structural Systems of a Taizhou Changjiang Highway Bridge Model

Cited by 50 publications

References 9 publications

Case study of the seismic response of an extra‐dosed cable‐stayed bridge with cable‐sliding friction aseismic bearing using shake table tests

Case study of the seismic response of an extra‐dosed cable‐stayed bridge with cable‐sliding friction aseismic bearing using shake table tests

Longitudinal Seismic Behavior of a Single-Tower Cable-Stayed Bridge Subjected to Near-Field Earthquakes

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

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