Analysis of Crack Reason on Block No.0 of Continuous Rigid-Frame Bridge

Huang, Weilin; Tan, Li Ying; Zhou, Kang

doi:10.4028/www.scientific.net/amm.71-78.1392

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…all points of the section to ensure that the entire section is evenly stressed, the constraints are equal, and no local deformation is generated. In this paper, the boundary conversion between the bar system element and the solid element [16] is illustrated in Fig. 6 below.…”

Section: Selection Of Materials Propertiesmentioning

confidence: 99%

Sensitivity analysis of hygrothermal effect in triangular rigid frame area of V-shaped pier rigid frame bridge

Chu,

Li,

Ding

et al. 2024

Preprint

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The V-shaped pier rigid frame bridge is a multiple statically indeterminate structure with the consolidation of the pier beam foundation, and the secondary internal force effect of the triangular rigid frame area rigidly connected by the V pier and the No.0 block is significant under the action of temperature and humidity. Therefore, taking the Gunnong Bridge in Myanmar as the engineering background, by establishing the finite element model of the whole bridge space bar system and the local solid model of the triangular rigid frame area to study the sensitivity of the three most important ambient factors of temperature, humidity, and wind speed to the hygrothermal effect of the triangular rigid frame area of the V-shaped pier rigid frame bridge. The results show that the hygrothermal stress of box girder and V pier is linearly correlated with temperature and relative humidity, and nonlinearly correlated with wind speed. Under the influence of temperature, wind speed and relative humidity, the hygrothermal stress at the junction of V pier river water and air is greater than that at the upper and lower roots of V pier. The sensitivity of structural hygrothermal stress to temperature and relative humidity is constant, and the sensitivity to wind speed is linear negative correlation. When the wind speed is less than 6m/s, the sensitivity of wind speed is much greater than that of temperature and relative humidity.

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Section: Selection Of Materials Propertiesmentioning

confidence: 99%

Sensitivity analysis of hygrothermal effect in triangular rigid frame area of V-shaped pier rigid frame bridge

Chu,

Li,

Ding

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…In practice, concrete is always simulated by 3-D solid element. As for reinforcement, it is usually simulated by linear element considered its slender property [2,3]. This is the most common modeling method, and in Ansys, it is usual simulated concrete by SOLID65 element and reinforcement by LINK8 element, just as in this PPSCB model.…”

Section: A Establishing Of Fea Modelmentioning

confidence: 99%

New Simulation Method of Reinforcement Simulation in FEA

Huang

Tan

2013

AMM

Self Cite

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During the research of local stress distribution of polyline pretensioned beams by 3-D nonlinear finite element method, a problem of curve prestressed reinforcement simulation is discovered. If the line of prestressed reinforcement is curve, the calculated result of local stress distribution is greatly affected by element size, because of the tectonic stress concentration by the coupling between the linear element and body element. Then, the validity and applicability of the model couldn't be judged. To eliminate the harmful effect, the curve prestressed reinforcement is determined to simulate by body element. The result shows that it will solve the problem thoroughly, and the calculated result is truthful and reliable. This research presents a new thought and method about the local stress analysis of the prestressed concrete structure.

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Analysis of Crack Reason on Block No.0 of Continuous Rigid-Frame Bridge

Cited by 2 publications

References 4 publications

Sensitivity analysis of hygrothermal effect in triangular rigid frame area of V-shaped pier rigid frame bridge

Sensitivity analysis of hygrothermal effect in triangular rigid frame area of V-shaped pier rigid frame bridge

New Simulation Method of Reinforcement Simulation in FEA

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