The Variation of Hydraulic Characteristics Depending upon Removal of the Hydraulic Structures near the Junction between Nam Han and Pyeong Chang Rivers

Choi, Gye-Woon; Yoon, Yong‐Jin; Cho, Jun-Bum

doi:10.3741/jkwra.2005.38.8.675

Cited by 1 publication

(1 citation statement)

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“…Studies using field experiments are currently in progress throughout the world to minimize bridge damage, and especially, the Federal Highway Administration [5,6] suggested various coefficients based on a lot of experiments. In Korea, many studies on the analysis of the effect of water level increase on bridge structures have been conducted by using experiments and numerical analysis, and techniques appropriate for domestic circumstances have been developed (Choi, Yoon and Cho [7], Lee, Jung, Kim and Lee [8], Kim [9]). However, for temporary bridges that are temporarily built for the construction of large structures, design criteria and relevant studies are scarce due to the nature of the structure, and conservative design that secures stability is generally not available as they are temporary structures.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Cause for the Collapse of a Temporary Bridge Using Numerical Simulation

Kim¹,

Kim²,

Kang³

2013

ENG

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The purpose of this study was to suggest the measures and methods for securing the stability of temporary bridges by analyzing the cause for the collapse of the temporary bridge built for the construction of the GunNam flood control reservoir located at the main channel of the Im-Jin River. Numerical simulations (one-, two-, and three-dimensional) were performed by collecting field data, and the results showed that the collapse occurred because the height of the temporary bridge was lower than the water level at the time of the collapse. Also, the drag force calculation showed that when the guardrail installed on the upper deck structure was not considered, there was no problem as the calculated values were lower than the design load, whereas when the guardrail was considered, the stability was not secured as the calculated values were higher than the design load, 37.73 kN/m. It is thought that the actual force of the water flow applied on the bridge increased due to the accumulation of debris on the guardrail as well as the upper deck.

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Section: Introductionmentioning

confidence: 99%