Research on Structural Damage on Cement Concrete Pavement in the Airport

Zhang, Runfeng; Liu, Chaojia; Zhang, Xianmin

doi:10.1061/41177(415)270

Cited by 3 publications

(4 citation statements)

References 1 publication

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“…where ρ C is the volumetric weight of concrete (g/cm 3 ), H is the rise height of the small ball ≥ 42 cm, η is the vibration viscosity factor (Ns/m 2 ) at 10 cm from the pounding bar, and T is the required vibration time of concrete (s) at the corresponding vibration frequency.…”

Section: Equation Of Optimal Vibrating Parametersmentioning

confidence: 99%

“…Cement concrete is widely used in airport road surfaces because of its high strength, high stiffness, good integrity, and high economy [1][2][3]. As the volume of cement concrete roadway projects increases every year, the inefficiency and cost of manual construction also increase, causing the trend of intelligent roadway construction to become more evident.…”

Section: Introductionmentioning

confidence: 99%

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Study on the Effect of Vibrating Process on the Compactness of Slipform Concrete

Chai

Cheng

2023

Applied Sciences

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Compaction directly affects concrete’s strength and durability. In this paper, the relationship between vibration parameters and compactness is modeled by using colored aggregates and image methods to analyze the compactness of concrete characterized by pore structure. Experiments were conducted to investigate the effects of vibrating frequency and duration on the aggregate distribution coefficient, segregation rate, and porosity of slipform concrete. The test results showed that the smaller the aggregate size under high-frequency pounding, the better the concrete compactness. In addition, the aggregate segregation rate and concrete strength increased and then decreased with the pounding length, and the greater the pounding frequency, the more pronounced the trend. Lastly, the concrete’s internal porosity increased and then decreased with the pounding length. This study obtained the control range of aggregate segregation rate and porosity through analysis, and established equations for the optimal vibration parameters and paving speed of sliding form concrete to guide the reasonable control of actual sliding form paving and vibration construction processes.

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Section: Equation Of Optimal Vibrating Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the Effect of Vibrating Process on the Compactness of Slipform Concrete

Chai

Cheng

2023

Applied Sciences

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“…The rotation of the built-in eccentric mass in exciter generates exciting force, the mathematical expression in the vertical direction is: = • Fig. 2 Vibration system simplified model Considered separately about the displacements of breaking shoe caused by concentrated loads and distributed loads of each section of resonant beam, the superimposition of these displacements is the amplitude of breaking shoe [8].…”

Section: Vibration System Mechanical Analysismentioning

confidence: 99%

Resonant Pavement Breaker Vibration System Design and Simulation

Zhu

Yang

Hou

et al. 2013

AMR

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“…Furthermore, the normal landing of an aircraft has a certain impact on the road surface, the magnitude of which depends on the drift height of the aircraft and the level of the pilot. In the case of a violent landing, the impact loading on the road surface is three times more than the static load [21], and it is not possible to describe the dynamic effect of the impact loading using a static method [22]. Finally, after the construction and operation of the airport pavement, many phenomena have occurred that cannot be explained by statics, such as fatigue cracking and aggregate loosening.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response Analysis of Airport Pavement under Impact Loading

2023

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The safety of the airport runway, as an infrastructure, is of considerable concern. The existing research has problems of hysteresis and unreasonable load application. In this paper, ANSYS is used to construct a coupled tire–pavement model to study the dynamic characteristics of airport asphalt pavements under impact loading. Taking the Boeing 737–800 as an example, the impact of an aircraft landing on an airport pavement is simulated by applying a dynamic load to the landing gear. The effects of tire pressure, landing pitch angle, and sinking speed on the dynamic response of the airport runway are investigated. The effects of each factor of the airport pavement are analyzed by comparing the maximum effective stress, effective strain, and displacement in the vertical direction at the same position of different structures. The results show that when the tire pressure is 2.0 MPa, the maximum values of effective stress, effective strain, and vertical displacement increase by 29.8%, 19.1%, and 22.2%, respectively, compared with 1.0 MPa. The maximum values of effective stress, effective strain, and vertical displacement at the 3.0 m/s sinking speed increase by 25.2%, 93.1%, and 77.1%, respectively, compared with that at the sinking speed of 1 m/s, which indicates that the effect of sinking speed on the dynamic response of the pavement is more significant. However, the change in the landing pitch angle has little impact on the response parameters of the pavement. Meanwhile, the flexural tensile stress at the bottom of the surface and the equivalent effect at the top of the soil foundation must be considered in the design of the airport pavement structure.

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Research on Structural Damage on Cement Concrete Pavement in the Airport

Cited by 3 publications

References 1 publication

Study on the Effect of Vibrating Process on the Compactness of Slipform Concrete

Study on the Effect of Vibrating Process on the Compactness of Slipform Concrete

Resonant Pavement Breaker Vibration System Design and Simulation

Dynamic Response Analysis of Airport Pavement under Impact Loading

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