Structural performance of a steel cable-stayed bridge under blast loading considering different stay patterns

Tetougueni, Cyrille Denis; Zampieri, Paolo; Pellegrino, Carlo

doi:10.1016/j.engstruct.2020.110739

Cited by 28 publications

(3 citation statements)

References 39 publications

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“…Maiorana et al 13 conducted a numerical analysis on deck explosion of steel arch bridges, studying the damage degree and failure mechanism of steel arch bridge panels under the action of deck explosion. Tetougueni et al 14 used numerical simulation to calculate and evaluate the damage degree of different cable‐stayed bridges under the action of explosion. Sun et al 15 proposed a bridge dangerous goods explosion assessment framework composed of conversion system and polymerization process, defining the bridge risk function according to the framework.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on protection of prestressed concrete box girder under vehicle explosion of bridge deck

Sun,

Liu

2024

Structural Concrete

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This paper presents a study on the explosion protection of prestressed concrete box girder, which is a commonly used in concrete bridges. The explosion protection tests of four prestressed box beams were designed with 1:5 scale. In order to evaluate the explosion performance of different protective layers, steel plate, ultra‐high‐performance concrete (UHPC) layer, and composite protective layer were used to protect the box girder. The experimental results revealed that under the effect of deck explosion, local penetrating failure occurred in the top plate of the box girder, which exhibited characteristics of punching failure. The web and bottom plate of the box girder as a whole exhibited bending characteristic. Compared with the unprotected box girder, the damage of the top plate of the protected box girder was less severe, whereas the damage of the bottom plate was greater. In working conditions 2–4, the UHPC protective box girder suffered less damage to the top plate, whereas the other protective box girders suffered more. The explosion dynamic responses of the box girder were compared, and the influences of different protective layers on the explosion dynamic response of box girder were studied. Based on the box girder damage, the protective efficiency of each protective layer under near‐explosion was studied. Based on the explosion tests, three‐dimensional numerical analysis model of box girder explosion was established. The accuracy of the numerical simulations of the box girder explosion were verified by comparing with the experimental failure data. Through the numerical results, the explosive energy dissipation capacity of different protective materials was compared and analyzed. Finally, based on the dynamic response of the box girder under different working conditions, the sensitivity of the protective layer to the dynamic responses of the box girder were studied. The analysis showed that the UHPC layer was sensitive to the change of prestress and explosion damage area of the box girder but had little influence on the rebars stress and the overall response of the box girder.

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Section: Introductionmentioning

confidence: 99%

Experimental study on protection of prestressed concrete box girder under vehicle explosion of bridge deck

Sun,

Liu

2024

Structural Concrete

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“…In recent years, there have been many studies on the maneuverability of such beams in complex environments [7][8][9]. In particular, with the development of computer technology, more and more scholars have begun to use the finite element method to simulate the structural response of bridges, and numerical simulations have also been shown to be effective in predicting structural responses [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of a Box Multistage Stiffened Beam under the Coupling of Vehicle Load and Air Blast Load

Ma,

Gao,

et al. 2023

Buildings

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If a bridge is subjected to a blast load when there is vehicle traffic, not only its own safety is threatened, but it can also lead to damage to vehicles. In addition, the coupling of a vehicle load and an explosion load may further aggravate the impact of an explosion. To understand the coupling relationship between the two kinds of loads on a bridge, a static load was applied on the bridge using the impact coefficient while a blast load was applied on the outside of the bridge. A numerical simulation was also used to further study the coupling effect of the vehicle load and the explosion load. The results showed that the vehicle load could effectively limit the vertical deformation. The numerical model was accurate in predicting the response process of the stiffened beam. With the coupling of the vehicle load, the equivalent plastic strain of the box multistage stiffened beam was mainly concentrated at the hinge and decreased when the blast loading remained constant. The transverse anti-blast performance of the stiffened beam was mainly provided by the bridge web and the diaphragm under the coupling effect of the vehicle load and the blasting load, but the function of the diaphragm was weakened. Additionally, the hinge used as a connector was able to directly affect the bearing capacity of the bridge. Even if the hinge was only slightly damaged, it could cause the bridge to enter the failure stage, meaning that the strength of the hinge must be greater than that of the bridge.

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“…Bridges must be able to withstand loads such as wind loads, earthquake loads, traffic loads, and other loads on the bridge [4]. A bridge consists of 3 main parts, namely the foundation, substructure, and superstructure [5].…”

Section: Introductionmentioning

confidence: 99%

Analysis of abutment safety factors against landslides on the Cipeundeuy bridge - Sukatani, Indonesia

Paikun¹,

Hamzah

Amdania

et al. 2021

IJEAT

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Bridges are connecting access between one region and another, and play an important role in transportation to facilitate community economic activities. The river bridge has very steep cliffs, and these cliffs often occur in landslides, therefore this study is very important to determine the safety of the bridge. This study aims to determine the safety of the bridge abutment structure which is the head of the bridge with the function of continuing the load on the bridge foundation. This analysis is limited to only calculating the stability and safety of bridge abutments with reinforced concrete structures. The analysis uses methods and formulas referring to Indonesian national standards, namely RSNI T-02-2005 regarding loading for bridges, RSNI T-12-2004 concerning concrete structure planning for bridges, SNI 03-2833-200X concerning earthquake resistance planning standards for bridges. The data used are drawing data and technical specifications used on the bridge, then the data is verified against planning consultants, project implementers, and observations at the location. The results of the analysis stated that the bridge abutment was declared safe from soil thrust and other forces, but did not have a good safety factor against shear forces. Landslides that occur can be resisted by the bridge abutments. This research is expected to be followed up by policymakers to repair bridges so that they are resistant to maximum shear forces, and provide safety signs from landslides to relieve public anxiety when crossing bridges, as well as provide reinforcement for the cliffs around the bridge.

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Structural performance of a steel cable-stayed bridge under blast loading considering different stay patterns

Cited by 28 publications

References 39 publications

Experimental study on protection of prestressed concrete box girder under vehicle explosion of bridge deck

Experimental study on protection of prestressed concrete box girder under vehicle explosion of bridge deck

Dynamic Response of a Box Multistage Stiffened Beam under the Coupling of Vehicle Load and Air Blast Load

Analysis of abutment safety factors against landslides on the Cipeundeuy bridge - Sukatani, Indonesia

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