Seismic damage of highway bridges during the 2008 Wenchuan earthquake

Han, Qiang; Du, Xiuli; Liu, Jingbo; Li, Zhongxian; Li, Liyun; Zhao, Jianfeng

doi:10.1007/s11803-009-8162-0

Cited by 294 publications

(87 citation statements)

References 4 publications

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“…However, good ductile performance for bending usually indicates a considerable loss of axial capability and may result in the collapse of the entire structure during the earthquake. Most of the column failures, such as de-bonding or loss of anchorage of the rebar due to shear or bending, can be attributed to improper design of detailing (Kawashima et al, 1997(Kawashima et al, , 1979Han et al, 2009). The failure patterns of RC columns observed in the survey fall into two categories, bending failure and bending-shear brittle damage.…”

Section: Outline Of Two Typical Curved Bridgesmentioning

confidence: 99%

Seismic Failure of Typical Curved RC Bridges in Wenchuan Earthquake

Han

Qin²,

Wang³

2013

International Efforts in Lifeline Earthquake Engineering

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Reinforce concrete (RC) curved bridges suffered severe damages or even collapsed in the 2008 Wenchuan Earthquake. A field survey of seismic performance of RC curved bridges was examined. Damage patterns and the probable causes of RC curved bridges including Baihua bridge and ramp bridge of Huilan interchange are presented and analyzed in this paper. The main failure was pure shear failure or shear-flexural failure of the pier columns. Bearings and expansion joints damage were another common failure pattern. Lession learned from the damage of RC curved bridges in this earthquake, the recommendations on the seismic design of RC curved bridges are presented involving ductility of bridge columns, design of curved bridges, design of bearings and devices preventing girders falling down. Suggestions for the future seismic design and retrofitting of RC curved bridges are also presented in moderate to severe earthquake area.

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Section: Outline Of Two Typical Curved Bridgesmentioning

confidence: 99%

Seismic Failure of Typical Curved RC Bridges in Wenchuan Earthquake

Han

Qin²,

Wang³

2013

International Efforts in Lifeline Earthquake Engineering

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“…Being a region of complex stresses and prone to the heavy loads that may be acting on, it needs to be the strongest member of the structure hence requiring the special attention for the stability of structure [1]. In recent times, many bridge piers have been damaged either by self-loads, or by earthquakes because of the reason of weak strength [2]. To maximize structure effectiveness as far as the quality/mass and stiffness/mass proportions and to lessen the mass commitment of the bridge to seismic reaction, it has been a prominent building practice to utilize bridge piers for column sections.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Compressive Behaviour of Pier by Partial Replacement of Metakaolin

Bashir¹

2017

Global J Technol Optim

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Objectives:The main focus of our experimental investigation is to study the behavior of a pier based on variations in compressive strength due to partial replacement of cement with metakaolin in order to attain maximum stiffness and strength, so as to withstand the shear forces, bending moments and other related structural response parameters efficiently. Analysis:The round and rectangular specimens were prepared by replacing cement with metakaolin up to 15%. The samples were tested after 7 and 28 days.Findings: Study reveals that with the replacement of 10% metakaolin in both circular as well as rectangular moulds, there is an increase in the load carrying capacity approximately about 19%, when compared with plain reinforced concrete moulds after 28 days. The most important finding is that the replacement of cement by metakaolin up to 10% helped us to attain higher strength after 7 as well as 28 days hence providing us a simple and efficient method of preventing the pier failure by attaining higher strengths. Improvement/Applications: Based on the test results there is remarkable increase in the load carrying capacity of pier which enhances the rigidity of pier in terms of strength and stiffness.

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“…Unseating of South Connector Overcrossing of the Golden State‐Antelope Valley 51/14 freeway interchange after 1971 San Fernando earthquake brought the significant failure of curved bridges, because of the in‐plane deck rotation, into limelight. In previous earthquakes, more curved bridge failures due to unseating of deck have been reported at the Southbound separation and Overhead after the 1994 Northridge earthquake , at Route 3 and Minata/gawa Interchange after the 1995 Kobe earthquake , Baihua bridge after the Wenchuan earthquake and Shie‐wei bridge in the Chi‐Chi earthquake in Japan . Torsion damage has been identified in curved bridges such as Mao‐loh‐shi bridge during the Chi‐Chi earthquake in Japan , etc.…”

Section: Introductionmentioning

confidence: 99%

Seismic analysis of a curved bridge considering deck‐abutment pounding interaction: an analytical investigation on the post‐impact response

Banerjee

Chanda

Das

2016

Earthq Engng Struct Dyn

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Summary Horizontal curved bridges are very common at intersections and at the changing angle of bridge alignment. Almost in every previous earthquake report, it can be seen that the columns of a curved segment experience torsional damage, and the curved decks are unseated from the abutment support. The main reason behind that phenomenon is the in‐plane deck rotation which results because of the complex dynamic coupling between two longitudinal directional vibrations. The curved decks are susceptible to deck rotation because in a curved segment, the centre of mass and the centre of stiffness generally lie outside the bridge deck and are not located at the same point. The pounding with the abutment often increases the rotational tendency of the deck. In this paper, a classical mechanics‐based approach is adopted to analytically estimate the deck rotation potential of curved bridge considering the deck‐abutment pounding interaction. The deck‐abutment pounding is modelled using non‐smooth techniques considering the Newton's impact law in the normal and Coulomb's friction in the tangential direction. Within the scope of this paper, a parametric study is performed to get the ideal combination of the column and bent arrangement and the gap distance. Copyright © 2016 John Wiley & Sons, Ltd.

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Seismic damage of highway bridges during the 2008 Wenchuan earthquake

Cited by 294 publications

References 4 publications

Seismic Failure of Typical Curved RC Bridges in Wenchuan Earthquake

Seismic Failure of Typical Curved RC Bridges in Wenchuan Earthquake

Experimental Investigation of Compressive Behaviour of Pier by Partial Replacement of Metakaolin

Seismic analysis of a curved bridge considering deck‐abutment pounding interaction: an analytical investigation on the post‐impact response

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