Mechanical response of hydronic asphalt pavement under temperature–vehicle coupled load: A finite element simulation and accelerated pavement testing study

Zhu, Xingyi; Zhang, Qifan; Chen, Long; Du, Zhao

doi:10.1016/j.conbuildmat.2020.121884

Cited by 29 publications

(11 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The composition of the environment and transportation in China is complex, and the overload phenomenon is serious, resulting in a large impact of temperature and load coupling. Therefore, it is necessary to study the internal force of the cast conductive asphalt concrete steel bridge deck pavement system under the coupling effect of snow melting temperature and vehicle load [ 29 ].…”

Section: Methodsmentioning

confidence: 99%

Electrode Layout Optimization and Numerical Simulation of Cast Conductive Asphalt Concrete Steel Bridge Deck Pavement

Guo

Chen

et al. 2022

Materials

View full text Add to dashboard Cite

In order to obtain the optimal electrode layout and ice melting effect of cast conductive asphalt concrete steel bridge deck pavement, firstly, pouring conductive asphalt concrete was prepared; secondly, different electrode materials and layout methods were selected to test the heating rate of the specimen from start to 120 min, and the electrode materials and layout methods were optimized. Then, the finite element analysis software ANSYS was used to build the model for heating and ice melting simulation, and the indoor test was used to further verify the ice melting effect of the cast conductive asphalt coagulation with or without the insulation layer. Finally, the thermal-structural coupling analysis of cast conductive asphalt concrete steel bridge deck pavement was carried out using ANSYS finite element software. The results showed that the stainless steel electrode material had the best heating effect, and the electrode thickness in the range of 0.1~3 mm had no effect on the heating effect. The intermediate heating rate of the upper surface of the stainless steel sheet electrode cast conductive asphalt concrete in the left and right external electrodes was 8 ∘C/h, while the intermediate heating rate of the upper surface of the stainless steel mesh electrode cast conductive asphalt concrete was 12.9 ∘C/h. The layout of the left and right buried stainless steel metal mesh was able to effectively improve the snow melting efficiency; ANSYS finite element ice melting simulation was used to obtain the variation law of ice melting efficiency and a temperature field of cast conductive asphalt concrete. The indoor ice melting test showed that when melting the same thickness ice layer at 50 V voltage, it took 240 min with an insulation layer and 720 min without an insulation layer, which was three times that of the ice with an insulation layer, which further verifies the superiority of its ice melting effect. The most unfavorable load position of pavement under load and temperature field was determined. The maximum tensile stress and compressive stress of the pavement surface were transverse, and the maximum shear stress of the pavement bottom was transverse.

show abstract

Section: Methodsmentioning

confidence: 99%

Electrode Layout Optimization and Numerical Simulation of Cast Conductive Asphalt Concrete Steel Bridge Deck Pavement

Guo

Chen

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…However, it was discovered that the pipe wall temperature and the test medium temperature were both related to the ambient air temperature for exposed pipes. At the same time, Zhu et al 51 discovered that decreased air temperature lowers pavement temperature. The temperature gradient increases and the stress concentration becomes quite severe can also cause damage to the pavement.…”

Section: Application Of Thermoelectric Technology In Pavement Energy ...mentioning

confidence: 99%

“…Therefore, it is necessary to use a pipe that meets the high strength load of the road to prevent the flow of liquid 50 . In the meanwhile, Zhu et al 51 discovered that stress concentrations exist near underground pipelines. The stress concentration can be reduced to some extent by increasing pipe spacing and embedded depth.…”

Section: Application Of Thermoelectric Technology In Pavement Energy ...mentioning

confidence: 99%

Recent advances in thermoelectric technology to harvest energy from the pavement

Jian

Zhou

Wang

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

Summary Reducing the excessive use of fossil fuels and developing new sustainable energy sources are challenges and urgent issues people face today. Pavements are rich in thermal energy when exposed to the sun for long periods of time. Thermoelectric technology allows for the conversion of thermal and electrical energy from the temperature difference that exists between the pavement and the underground. Thermoelectric technology applied to pavements could not only harvest energy to power wireless sensors, LED lights or store it in supercapacitors, but also absorb the temperature of the pavement to reduce damage to the pavement. The review summarized previous pavement thermoelectric energy harvesting systems in the areas of the types, advantages and disadvantages, power generation, and economic benefits. Methods to improve the conversion efficiency of thermoelectric energy harvesting devices are discussed in detail, especially the optimization of the cold end, the external environment, and the structure. Starting from the properties of thermoelectric cementitious composites, the applications and future developments of thermoelectric cementitious composites are presented in more detail. The thermoelectric cementitious composites are grouped into thermoelectric pavement energy harvesting solid systems. Finally, the integrated use of thermoelectric generator and thermoelectric cementitious composites for road energy harvesting is proposed. The article provided directions and references for future research on thermoelectric technology in pavement energy harvesting.

show abstract

“…Haibin Wei used the ANSYS static structural analysis module to analyse three indicators of EPDM pavement [ 24 ]. Zhu et al used a finite element method to analyse the mechanical response of hydronic asphalt pavement (HAP); the results indicated that the concrete between adjacent pipes was subjected to significant tensile stresses [ 25 ]. The mechanical response of hydronic asphalt pavement under temperature–vehicle coupled loading was evaluated by Zhu et al, who found that the concrete between adjacent pipes was subjected to significant tensile stresses [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

“…Zhu et al used a finite element method to analyse the mechanical response of hydronic asphalt pavement (HAP); the results indicated that the concrete between adjacent pipes was subjected to significant tensile stresses [ 25 ]. The mechanical response of hydronic asphalt pavement under temperature–vehicle coupled loading was evaluated by Zhu et al, who found that the concrete between adjacent pipes was subjected to significant tensile stresses [ 25 ]. Huang et al established a numerical model to characterize the fracture process of a reinforced concrete (RC) beam strengthened with fiber-reinforced polymer (FRP) in detail [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement

Zhuang

Liu

et al. 2023

Polymers

View full text Add to dashboard Cite

Finite element numerical simulation calculation of pavement structure load response is widely applied; however, there is still a lack of research on the polyurethane (PU) mixture composite pavement load response. The mechanical characteristics of PU mixture composite pavement are not well understood, and there is a lack of research on typical pavement structures of PU mixtures, which limits their application in pavement structures. Therefore, herein, the mechanical properties of PU mixtures are analysed using the dynamic modulus test, uniaxial penetration test, and fatigue test. Further, the finite element theory calculation method is used to realize the load response calculation of orthogonal design composite pavement structure. The results show that PU mixtures exhibit more obvious elastic characteristics and have good shear resistance, fatigue stability, and temperature stability, and can be used as shear and anti-fatigue layers. The structure of ‘4 cm SMA-13 + 5 cm PUM-20 + 6 cm PUM-25 + semi-rigid base’ is recommended for the PU mixture composite structure. In comparison to typical asphalt pavement, the analysis shows that except for shear stress, temperature has little effect on the load response of PU composite pavement structures, while high temperatures lead to a significant increase in the load response of typical asphalt pavement structures. The PU composite pavement can bear greater loads and has a reduced thickness of its surface layer by about 3 cm in comparison to conventional pavement. The results of this study provide theoretical support for the design of PU mixture pavement structures and promote the popularization and application of PU mixture pavement.

show abstract

Mechanical response of hydronic asphalt pavement under temperature–vehicle coupled load: A finite element simulation and accelerated pavement testing study

Cited by 29 publications

References 36 publications

Electrode Layout Optimization and Numerical Simulation of Cast Conductive Asphalt Concrete Steel Bridge Deck Pavement

Electrode Layout Optimization and Numerical Simulation of Cast Conductive Asphalt Concrete Steel Bridge Deck Pavement

Recent advances in thermoelectric technology to harvest energy from the pavement

Mechanical Properties of Polyurethane Mixture and Load Response Behaviour of Polyurethane Composite Pavement

Contact Info

Product

Resources

About