State-of-the-Art Review on Seismic Induced Pounding Response of Bridge Structures

Hao, Hong; Bi, Kaiming; Chouw, Nawawi; Ren, Wei‐Xin

doi:10.1142/s179343111350019x

Cited by 37 publications

(17 citation statements)

References 53 publications

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“…Bridges can be particularly sensitive to pounding because it can cause the failure of the decks because of local damage involving crushing and spalling of girders and of supports between girders and piers and of limiters between adjacent girders. A survey about impact models, results of experimental researches, and techniques devoted to mitigate the effects of pounding induced by earthquake excitation between bridge decks can be found in Hao et al whereas further results of both experimental and analytical investigations concerning pounding of isolated bridges are reported in other works …”

Section: Introductionmentioning

confidence: 99%

Influence of the characteristics of isolation and mitigation devices on the response of single‐degree‐of‐freedom vibro‐impact systems with two‐sided bumpers and gaps via shaking table tests

Andreaus

Angelis

2020

Struct Control Health Monit

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Summary During strong earthquakes, structural pounding may occur between structures (buildings, bridges, strategic facilities, critical equipment, etc.) and the surrounding moat wall because of the limited separation distance and the deformations of the isolator. An arrangement that favors the solution of this problem is the interposition of shock absorbers. Thus, the influence of geometrical and mechanical characteristics of isolation and mitigation devices on nonlinear, nonsmooth response of vibro‐impact systems is experimentally investigated in this paper on the basis of a laboratory campaign of experimental tests. Shaking table tests were carried out under a harmonic excitation in order to investigate two different configurations: the absence and the presence of bumpers. Three different values of the table acceleration peak were applied, four different amplitude values of the total gap between mass and bumpers were considered, and also four different types of bumpers were employed; moreover, two problems were addressed, namely, control of excessive displacements and control of excessive accelerations, and hence, two types of normalization were adopted in order to better interpret experimental results. Suitable choices of pairs of bumpers and gaps were suggested as a trade‐off between conflicting objectives. Furthermore, a numerical model was proposed, and its governing parameters identified in order to simulate the experimental results.

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Section: Introductionmentioning

confidence: 99%

Influence of the characteristics of isolation and mitigation devices on the response of single‐degree‐of‐freedom vibro‐impact systems with two‐sided bumpers and gaps via shaking table tests

Andreaus

Angelis

2020

Struct Control Health Monit

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“…Highway bridges were severely damaged or collapsed during past strong earthquakes, which brought many difficulties to rehabilitation [1]. Figure 1 shows the unseating failure of bridge spans during the 2008 Wenchuan earthquake with a magnitude of ML = 8.0 [2].…”

Section: Introductionmentioning

confidence: 99%

Seismic Collapse Analysis of RC Highway Bridges Based on a Simplified Multiscale FE Modeling Approach

Han

et al. 2017

Shock and Vibration

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Multiscale finite element (FE) modeling offers a balance between computational efficiency and accuracy in numerical simulations, which is appropriate for analysis of seismic collapse of RC highway bridges. Some parts of structures that need detailed analysis can be modeled by solid elements, while some subordinate parts can be simulated by beam elements or shell elements to increase the computational efficiency. In the present study, rigid surface coupling method was developed to couple beam elements with solid elements using the LS-DYNA software. The effectiveness of this method was verified by performing simulation experiments of both a single-column pier and a two-span simply supported beam bridge. Using simplified multiscale FE modeling, analyses of collapse and local failure of a multispan simply supported beam bridge and a continuous rigid frame bridge were conducted to illustrate the approach in this paper. The results demonstrate that the simplified multiscale model reasonably simulates the collapse process and local damage of complex bridges under seismic loading.

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“…stereo mechanical methods and contact element methods. And the contact element methods have been usually used because they are suitable for the finite element analysis [13,14]. Two kinds of contact element methods can be used for the deck-pier pounding issue as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Partial lumped mass method in longitudinal deck-pier poundings of girder bridges and its test verification

Peng¹,

Wu²

2017

J. vibroeng.

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Contact element methods have been widely used in the field of bridge poundings in recent years. For deck-pier poundings of girder bridges, two kinds of contact element methods are commonly used. One is the Lumped Parameter Method (LPM), which simplifies two pounding bodies to be two particles respectively, and the stress wave propagation phenomenon is disregarded. The other one is the Watanabe and Kawashima Method (WKM), whose weakness is that the pounding stiffness introduced to describe the pounding process is supposed and artificial. A new method, named as the Partial Lumped Mass Method (PLMM), was put forward for longitudinal deck-pier poundings of girder bridges and was introduced in this paper. Its applications were discussed in detail at first. Pounding force time histories with different Partial Lumped Factors were derived. The Rational Partial Lumped Factor was suggested theoretically. At last, the analysis results using the PLMM with different Partial Lumped Factors were compared, and the validity of the PLMM suggested in this paper was verified with shaking table test results.

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State-of-the-Art Review on Seismic Induced Pounding Response of Bridge Structures

Cited by 37 publications

References 53 publications

Influence of the characteristics of isolation and mitigation devices on the response of single‐degree‐of‐freedom vibro‐impact systems with two‐sided bumpers and gaps via shaking table tests

Influence of the characteristics of isolation and mitigation devices on the response of single‐degree‐of‐freedom vibro‐impact systems with two‐sided bumpers and gaps via shaking table tests

Seismic Collapse Analysis of RC Highway Bridges Based on a Simplified Multiscale FE Modeling Approach

Partial lumped mass method in longitudinal deck-pier poundings of girder bridges and its test verification

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