Resonance-search tests on a small-scale model of a cable-stayed bridge

Garevski, Mihail; Blakeborough, A; Severn, RT

doi:10.1016/0141-0296(91)90009-2

Cited by 20 publications

(5 citation statements)

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“…To solve the construction problem, the thickness of the tower and bents was enlarged to 80 mm while strictly following the scaling factor of flexural stiffness. Meanwhile, in order to reduce the total weight of the model [15], microconcrete was used to substitute the prototype concrete and its elastic modulus was designed to be 1/3 of the prototype material. Available rebar with the minimum diameter of 6 mm in Chinese commercial market was used to substitute 36 mm rebar of the prototype.…”

Section: Tower and Bents Designmentioning

confidence: 99%

“…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%

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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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Section: Tower and Bents Designmentioning

confidence: 99%

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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“…Although there is an extensive literature on deterministic analysis of bridges [6][7][8][9], technical literature is not adequate on the stochastic dynamic analysis of cable-stayed bridge. The dynamic behaviors of cable-stayed bridges have been studied by several researchers [10,11].…”

Section: Introductionmentioning

confidence: 99%

Stochastic finite element analysis of a cable-stayed bridge system with varying material properties

Çavdar

Bayraktar

Adanur

2010

Probabilistic Engineering Mechanics

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“…An accurate analysis of the natural frequencies and mode shapes of a highway bridge is fundamental to a solution for its dynamic response to seismic, wind and traffic loads. Although there is extensive literature on the deterministic analysis of bridges; (Baron and Lien 1973;Garevski et al 1991;Wang and Yang 1996;Au et al 2001), technical literature on the stochastic dynamic analysis of complex bridge systems remains inadequate. The dynamic behavior of complex bridges has been studied by several researchers (Zhao, Haldar, and Breen 1994;Brownjohn, Lee, and Cheong 1999) who have investigated the contribution of cables in the free vibration analysis of cable-stayed bridges using a variety of modeling methods.…”

Section: Introductionmentioning

confidence: 99%

Stochastic seismic analysis of Kömürhan Highway Bridge with varying material properties

Çavdar

Bayraktar

Altunışık

2015

Civil Engineering and Environmental Systems

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Stochastic seismic finite element analyses of the Kömürhan Bridge, the material properties of which are described by random fields, are presented in this paper. The stochastic perturbation technique and Monte Carlo simulation (MCS) method are used in the analyses. A summary of MCS and perturbationbased stochastic finite element dynamic analysis formulation of the structural system is given. The Kömürhan Bridge, located on the 51st km of Elazıg-Malatya highway in the east of Turkey, was chosen as a numerical example. The Erzincan earthquake in 1992 was considered a ground motion, since it took place in the vicinity of the bridge. The material properties were considered to be random variables. During the stochastic analysis, displacements and internal forces of the bridge under consideration were obtained using the perturbation-based stochastic finite element method (SFEM), as well as the MCS method. The selected random variables were elastic modulus and mass density. The efficiency and accuracy of the proposed SFEM algorithm were validated through comparison with results of the MCS method.

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Resonance-search tests on a small-scale model of a cable-stayed bridge

Cited by 20 publications

References 1 publication

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

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

Stochastic finite element analysis of a cable-stayed bridge system with varying material properties

Stochastic seismic analysis of Kömürhan Highway Bridge with varying material properties

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