Test to Failure of a Prestressed Concrete Bridge

Burdette, Edwin G.; Goodpasture, David W

doi:10.15554/pcij.05011974.92.103

Cited by 7 publications

(3 citation statements)

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“…5,6 Experimental tests are the most straightaway method to study both flexural and shear behavior of these structures. Some research studies investigated the flexural behavior [7][8][9][10][11][12][13] of full-scale existing PC bridges or parts of these (e.g., deck, slabs, and girders), while others focused on their shear behavior. [14][15][16][17] These works demonstrated how existing PC bridges with none-to-slight damage or deterioration ensured satisfactory load-bearing capacity, overperforming structural requirements by code provisions.…”

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confidence: 99%

Multidimensional nonlinear numerical simulation of post‐tensioned concrete girders with different prestressing levels

Galano,

Losanno,

Miluccio

et al. 2023

Structural Concrete

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Most of the Italian infrastructures have been built since the mid‐twentieth century. Prestressed concrete (PC) has been widely used, especially for bridges and viaducts. These structures have proved effective over time, but their performance could be affected by degradation phenomena (i.e., corrosion of the tendons and residual prestressing) or construction defects (i.e., grouting of the ducts), which need to be accurately modeled. This paper focuses on the flexural response of two reduced‐scale, posttensioned, PC bridge girders, prestressed with two different jacking forces and tested under four‐point bending configuration. Four multidimensional numerical models were developed to simulate the experimental behaviors of the selected specimens, using two alternative computational strategies, namely, the finite element method (FEM) and applied element method (AEM). Three FEM modeling were considered, ranging from one‐dimensional lumped‐plasticity models to two‐dimensional and three‐dimensional (3D) spread‐plasticity models. Besides, 3D AEM models were developed into another software package. The accuracy and the computational costs of the two numerical strategies are discussed in this paper. Also, the main features of each numerical modeling technique are addressed, including comparisons between numerical and experimental global response data as well as the statistical characterization of the model error. Based on these different features, the authors also suggest the most suitable numerical strategy for future studies on PC girders.

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mentioning

confidence: 99%

Multidimensional nonlinear numerical simulation of post‐tensioned concrete girders with different prestressing levels

Galano,

Losanno,

Miluccio

et al. 2023

Structural Concrete

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“…Furthermore, only a few reinforced concrete (RC) bridges have been investigated with regard to shearrelated failures, with research limited to the studies reported by Burdette and Goodpasture (1971) (1977), Pedersen et al (1980), Plos et al (1990), Aktan et al (1992), Azizinamini et al (1994), Isaksen et al (1998), Haritos et al (2000), Pressley et al (2004) and Puurula et al (2015). The outcomes from these studies have also been summarised and further discussed in Bagge et al (2018).…”

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confidence: 99%

A multi-level strategy for successively improved structural analysis of existing concrete bridges: examination using a prestressed concrete bridge tested to failure

Bagge

Plos

Popescu

2018

Structure and Infrastructure Engineering

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This paper describes a multi-level strategy with increased complexity through four levels of structural analysis of concrete bridges. The concept was developed to provide a procedure that supports enhanced assessments with better understanding of the structure and more precise predictions of the load-carrying capacity. In order to demonstrate and examine the multi-level strategy, a continuous multi-span prestressed concrete girder bridge, tested until shear failure, was investigated. Calculations of the load-carrying capacity at the initial level of the multi-level strategy consistently resulted in underestimated capacities, with the predicted load ranging from 25 % to 78 % of the tested failure load, depending on the local resistance model applied. The initial assessment was also associated with issues of localising the shear failure accurately and, consequently, refined structural analysis at enhanced level was recommended. Enhanced assessment using nonlinear finite element (FE) analysis precisely reproduced the behaviour observed in the experimental test, capturing the actual failure mechanism and the load-carrying capacity with less than 4 % deviation to the test. Thus, the enhanced level of assessment, using the proposed multilevel strategy, can be considered to be accurate, but the study also shows the importance of using guidelines for nonlinear FE analysis and bridge-specific information.

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“…This indicates accurate prediction of load distribution but inaccurate prediction of total structural stiflhess. Burdette and Goodpasture (1974) describe the ultimate load test of a decommissioned prestressed concrete highway bridge. The objective of the research was to observe the behavior of the bridge as it was progressively loaded to failure and to compare the load-deflection behavior with that obtained from analytical predictions based on the strain compatibility method.…”

Section: Bridge Testingmentioning

confidence: 99%

Experimental and analytical assessment of prestressed concrete bridges damaged by overheight vehicle impact

Russo¹

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Test to Failure of a Prestressed Concrete Bridge

Cited by 7 publications

References 0 publications

Multidimensional nonlinear numerical simulation of post‐tensioned concrete girders with different prestressing levels

Multidimensional nonlinear numerical simulation of post‐tensioned concrete girders with different prestressing levels

A multi-level strategy for successively improved structural analysis of existing concrete bridges: examination using a prestressed concrete bridge tested to failure

Experimental and analytical assessment of prestressed concrete bridges damaged by overheight vehicle impact

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