Investigation of Common Causes of Bridge Collapse in Colombia

Díaz, Edgar Eduardo Muñoz; Moreno, Federico Núñez; Mohammadi, Jamshid

doi:10.1061/(asce)sc.1943-5576.0000006

Cited by 51 publications

(14 citation statements)

References 2 publications

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“…They are widely spread on the territory (about 1 infrastructure per km of road development). The identification, evaluation and study of their vulnerability is discussed in [9][10][11][12][13].…”

Section: Numbermentioning

confidence: 99%

“…hile the crisis of wide span bridges fundamentally derives from structural reasons, the failure of a suitable maintenance and an inadequate concept of the structure or the pier erosion, for reduced span bridges the most frequent crisis is due to the interaction with the flow during floods [8]. Often the outflow span is insufficient for the loads [11] of the Q d project, leading to operate under pressure, i.e. to overlap infrastructures.…”

Section: Limit States and Capacity/rangementioning

confidence: 99%

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Failure evidences of reduced span bridges in case of extreme rainfalls The case of Livorno

Puppio

Novelli

Sassu

2018

Frattura Ed Integrità Strutturale

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The heavy rainfalls occurring in Italy in the last few years focused the attention on the vulnerability of the land and the related infrastructures. Critical situations involving losses of human life and deterioration or failure of relevant structures are frequent. These events were due to: (1) improper land-use; (2) aging of infrastructures, (3) insufficient maintenance and protection; (4) climate changes causing rainstorms similar to tropical events. The failure of small bridges in road networks plays a key role in this sense. The present paper aims to analyse the behaviour of small bridges during rainfalls or floods. In particular, the recent case of Livorno is analysed. The Italian territory has about 460.000 small bridges, mostly designed without the support of technical codes or a proper interaction between the hydraulic and structural aspects. A large part of them can be submerged by water flows during rainfalls and pushed by unexpected actions. The failure scenarios allow identifying the hydraulic and structural vulnerabilities through a specific survey. A classification of small bridges on the basis of submergibility indexes is eventually proposed. KEYWORDS. Small bridges; Structural and hydraulic assessment; Road network safety; Livorno flood. Citation: Puppio, M. L., Novelli, S., Sassu, M., Failure evidences of reduced span bridges in case of extreme rainfalls, The case of Livorno, Frattura ed Integrità Strutturale, 46 (2018) 190-202.

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Section: Numbermentioning

confidence: 99%

Section: Limit States and Capacity/rangementioning

confidence: 99%

Failure evidences of reduced span bridges in case of extreme rainfalls The case of Livorno

Puppio

Novelli

Sassu

2018

Frattura Ed Integrità Strutturale

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“…As of 2003, 26,472 bridges over waterways were scour-critical in the United States [15]. Same failure cases have been reported in other parts of the world [13,24]. These facts call for the development of an integrated analysis procedure that can help bridge owners and Departments of Transportation to evaluate the capacity, stability, and integrity of scoured bridges so that timely management strategies can be undertaken to prevent the failure of bridges under critical flood/scour conditions.…”

Section: Introductionmentioning

confidence: 97%

Assessment of structural integrity of bridges under extreme scour conditions

Klinga

Alipour

2015

Engineering Structures

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“…In Europe, as in most other developed regions, the age profile of RC bridges typically reflects a peak in construction activities around 1960-1980, meaning that most of them have an age of 40 or more years, and they were designed for a service life of 50 years [4]. Corrosion-induced damage is further reducing their lifespan at an alarming pace, as well as those of similar bridges in other areas, already compromised by other concurrent factors as demonstrated by the recent series of disastrous collapses that occurred in, as examples, Asia [5] and South America [6].…”

Section: Introductionmentioning

confidence: 99%

Earthquake Response Modeling of Corroded Reinforced Concrete Hollow-Section Piers via Simplified Fiber-Based FE Analysis

2021

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The effect of corrosion-induced damage on the seismic response of reinforced concrete (RC) circular bridge piers has been extensively investigated in the last decade, both experimentally and numerically. Contrarily, only limited research is presently available on hollow-section members, largely employed worldwide and intrinsically more vulnerable to corrosion attacks. In this paper, fiber-based finite element (FB-FEM) models, typically the preferred choice by practitioners given their reduced computational expense, are validated against previous shake-table and quasi-static cyclic tests on hollow-section RC columns, and then used to investigate the influence of corrosion-induced damage. To this end, modeling strategies of varying complexity are used, including artificial reduction of steel rebar diameter, yield strength and ductility, as well as that of concrete compressive strength to simulate cover loss, and ensuing dissimilarities quantified. Pushover and incremental dynamic analyses are conducted to explore impacts on collapse behavior, extending experimental results while accounting for multiple corrosion rates. Produced outcomes indicate a minimal influence of cover loss; substantial reductions of base shear (up to 37%) and ultimate displacement capacity (up to 50%) were observed, instead, when introducing relevant levels of deterioration due to corrosion (i.e., 30% rebar mass loss). Its predicted impact is generally lower when considering more simplified assumptions, which may thus yield non-conservative predictions.

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Investigation of Common Causes of Bridge Collapse in Colombia

Cited by 51 publications

References 2 publications

Failure evidences of reduced span bridges in case of extreme rainfalls The case of Livorno

Failure evidences of reduced span bridges in case of extreme rainfalls The case of Livorno

Assessment of structural integrity of bridges under extreme scour conditions

Earthquake Response Modeling of Corroded Reinforced Concrete Hollow-Section Piers via Simplified Fiber-Based FE Analysis

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