Selection of Optimal Intensity Measures in Seismic Damage Analysis of Cable-Stayed Bridges Subjected to Far-Fault Ground Motions

Zhang, Yu-Ye; Ding, Y.; Pang, Yutao

doi:10.1142/s1793431115500037

Cited by 19 publications

(6 citation statements)

References 33 publications

(30 reference statements)

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“…These IMs are also commonly used in the seismic fragility assessment of critical infrastructures such as bridges, dams, tunnels, and so on. However, in recent decades, questions have been raised regarding the reliability of the use of these measures and the information they provide when considered alone (Cao and Ronagh, 2014a, 2014b; Chen and Wei, 2013; Ghayoomi and Dashti, 2015; Yaghmaei-Sabegh, 2012; Zhang et al, 2015). As an example of this phenomenon, the peak relative interface displacements of lattice and interstitial columns that were recorded in the shake table tests of the MLA are given in Figure 9 for PM-LB, PM-BE, and PM-8UB seismic excitations.…”

Section: Mla Of Agr Core and The Shake Table Testsmentioning

confidence: 99%

Seismic response prediction using intensity measures: Graphite nuclear reactor core model case study

Gokce,

White,

Crewe

et al. 2023

Earthquake Spectra

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Seismic response analyses of structures have conventionally used the peak ground acceleration or spectral acceleration as an intensity measure to estimate the engineering demand parameters. An extensive shaking table test program was carried out on a quarter-sized advanced gas-cooled reactor (AGR) core model to investigate the global dynamic behavior of the system with degraded graphite components while subjected to seismic excitation. Evaluation of the most widely considered intensity measures, with respect to their capability for predicting the seismic response of an AGR core–like structure, is performed. Twenty intensity measures of 16 distinct seismic input motions are formulated and correlated, with experimental measurements describing the dynamic response of the reactor core model. Linear correlations are constructed for each intensity measure to statistically determine the best metric for predicting the seismic response of the AGR core model, and statistical analysis indicates that the acceleration spectrum intensity (ASI) is best suited to characterize and describe the structural demand of an AGR core-like structure when subjected to seismic loading. A response prediction tool is developed, based on empirically derived linear correlations, to estimate column distortions and determine the critical input motion for further experimental and numerical studies. Statistical analysis indicates that predicted column distortions, compared against direct experimental displacements, are significant, repeatable, and accurate.

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Section: Mla Of Agr Core and The Shake Table Testsmentioning

confidence: 99%

Seismic response prediction using intensity measures: Graphite nuclear reactor core model case study

Gokce,

White,

Crewe

et al. 2023

Earthquake Spectra

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show abstract

“…It is very important to find a suitable damage index for cable‐stayed bridges under seismic load. Considering 322 earthquakes and 26 intensity measures in a cable‐stayed bridge, Zhang and Ding proved that AI is among the most suitable damage indexes for cable‐stayed bridges. Hence, AI was used in the present paper to locate the damage.…”

Section: Modal Properties Of the Tied‐arch Bridgementioning

confidence: 99%

Localization of damaged cable in a tied‐arch bridge using Arias intensity of seismic acceleration response

Kordestani

Xiang

et al. 2019

Struct Control Health Monit

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It is well-known that a bridge may end up with severe damage under aftershocks, even if it resisted the main shock. As such, a quick assessment seems necessary when a bridge experiences an earthquake event. In this paper, an output-only energy-based method was developed to locate damaged cables in an tied-arch bridge under seismic excitation. For this purpose, seismic acceleration response signals were first subjected to simple band-pass filtering. Then, the energy levels, in terms of Arias intensity, were calculated and normalized to locate the damaged cables. The proposed method was validated through a realistic 3-D numerical model of a tied-arch bridge under 16 different ground motions. It was shown that the proposed method can accurately detect the damaged cables under the earthquakes. Moreover, the damage detection procedure is proved to be insensitive to noise and adequately robust against near-and far-field parameters of the earthquake. KEYWORDSseismic acceleration response, Arias intensity, band-pass filtering, detection of damaged cable, output-only method, tied-arch bridge Struct Control Health Monit. 2020;27:e2491.wileyonlinelibrary.com/journal/stc

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“…Due to the rapid economic development of urbanization in China over the last decades, many urban infrastructures have been constructed, such as buildings, highways, bridges, tunnels, and so on [1][2][3]. All these structures should be designed and constructed under the sustainable and resilience concept [4][5][6] to ensure functionality and safety during the life-cycle service.…”

Section: Introductionmentioning

confidence: 99%

Ultimate Load-Bearing Capacity and Sustainable Performance of Pile Foundations of Yanji Suspension Bridge in Fault Zone Based on Refined Geological Model

Ren,

Cheng,

Zhang

et al. 2024

Sustainability

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Pile foundation is the most important foundation type of long-span bridges, of which the ultimate load-bearing capacity affects the safety and sustainable performance of bridges. When constructing large-span bridges, the bridge site may be close to the adjacent fault zones, which seriously affects the safety and long-term performance of pile foundations, causing the failure and unsustainability of long-span bridges in their life-cycle service life. At present, there are no engineering design rules or methods for assessing the load-bearing capacity of the pile foundation near the fault zones. To study the influence of the fault zone on the loading-bearing capacity and sustainable performance of pile foundations, triaxial compression tests were carried out on the mylonite at the Yanji suspension bridge site near the Xiangfan–Guangji fault zone in Hubei Province. The mechanical properties of mylonite were reflected by the Mohr–Coulomb yield criterion, and a topographic and geological modeling method based on the multi-platform was established. Then, the ABAQUS finite element software was used to study the deformation, stress, failure modes, and sustainable performance of the pile foundation under different bridge load levels, analyze the safety of the pile foundation in the fracture zone, and summarize the ultimate bearing characteristics of the pile foundation. The results show that the whole pile and surrounding rock are basically elastic under the pressure of the designed load, the plastic zone of the pile foundation is mainly concentrated at the pile bottom, and the shear stress concentration zone of the pile is mainly manifested in the joint of the cap and pile and the interface between soft and hard rock. When the load is increased to 4 times the designed load, the stress concentration area of the pile body gradually shifts upward from the pile bottom, and the surrounding rock at the bottom forms an “X-shaped” shear failure zone. After 100 years of operation, the maximum compressive stress of piles reaches 28.6 MPa, which is 120% higher than that at the beginning of the bridge construction, indicating that the sustainable performance of the piles can withstand the effect of the fault zone over the designed service years.

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Selection of Optimal Intensity Measures in Seismic Damage Analysis of Cable-Stayed Bridges Subjected to Far-Fault Ground Motions

Cited by 19 publications

References 33 publications

Seismic response prediction using intensity measures: Graphite nuclear reactor core model case study

Seismic response prediction using intensity measures: Graphite nuclear reactor core model case study

Localization of damaged cable in a tied‐arch bridge using Arias intensity of seismic acceleration response

Ultimate Load-Bearing Capacity and Sustainable Performance of Pile Foundations of Yanji Suspension Bridge in Fault Zone Based on Refined Geological Model

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