Analysis on Analogue Simulation for Oscillatory Compaction Implementation in Bridge Deck Pavement

2014 ◽  
Vol 488-489 ◽  
pp. 433-436 ◽  
Author(s):  
Si Te Wu ◽  
Ping Ming Huang ◽  
Juan Wang
Keyword(s):  
Service Life ◽  
Dynamic Response ◽  
Simulation Model ◽  
Bridge Deck ◽  
Dynamic Responses ◽  
Bridge Structure ◽  
Analogue Simulation ◽  
Contrast Analysis ◽  
Pavement Construction ◽  
Bridge Deck Pavement

According to the compaction mechanism of oscillatory roller, a simulation model for oscillatory compaction implementation in bridge deck pavement was constructed via ANSYS. Contrast analysis on dynamic responses to bridge structure when vibratory roller or oscillatory roller is in operation shows that dynamic response of oscillatory roller is much smaller than that of vibratory roller under approximate compaction degrees. In this way, disturbance for the bridge structure can be reduced greatly, risk of bridge deck pavement construction can be decreased, and service life of the bridge can be increased effectively.

Dynamic Response of the Steel Bridge Deck Thin Surfacing due to Vehicle Load

2010 ◽  
Vol 148-149 ◽  
pp. 544-547
Author(s):  
Xun Qian Xu ◽  
Ye Yuan Ma ◽  
Guo Qing Wu ◽  
Xiu Mei Gao
Keyword(s):  
Dynamic Response ◽  
Bridge Deck ◽  
Three Dimensional ◽  
Coupled Model ◽  
Interface Layer ◽  
Dynamic Responses ◽  
Steel Bridge ◽  
Vehicle Load ◽  
Moving Vehicles ◽  
Space Technique

Basing on the coupled vibration theory, dynamic behavior of steel bridge deck thin surfacing under rand moving vehicles is studied. A three-dimensional coupled model is carried out for the steel bridges deck thin surfacing and vehicle. A method based on modal superposition and state space technique is developed to solve dynamic response generated by vehicle-surfacing interaction. The dynamic responses of an actual steel bridge deck thin surfacing are studied. The results show that adding epoxy asphalt as a sub coat can improve interface adhesion strength, which would be designed as the interface layer of steel deck thin surfacing.

Experiment Study on Dynamic Response of Rough AC Surface under Vehicle

2011 ◽  
Vol 243-249 ◽  
pp. 4366-4372
Author(s):  
Guang Hai Zhang ◽  
Hai Gui Kang ◽  
Yuan Xun Zheng
Keyword(s):  
Service Life ◽  
Dynamic Response ◽  
Structural Design ◽  
Asphalt Pavement ◽  
Road Surface ◽  
Dynamic Responses ◽  
Experiment Study ◽  
Asphalt Road

In order to study dynamic response of rough road surface resulting from different speeds and loads under a certain roughness for purpose of effective enhancement pertinence for structural design of an asphalt pavement and extension of its service life, displacement meters, stress meters and strain meters are embedded at different structural layers on the rough road surface to monitor the dynamic responses of AC pavement. The result shows that roughness can dramatically increase response on an asphalt road surface resulting from load and speed.

scholarly journals Experiment and Numerical Simulation of the Dynamic Response of Bridges under Vibratory Compaction of Bridge Deck Asphalt Pavement

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
An-Ping Peng ◽  
Han-Cheng Dan ◽  
Dong Yang
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
Field Experiments ◽  
Bridge Deck ◽  
Asphalt Pavement ◽  
Dynamic Responses ◽  
Structural Safety ◽  
Cross Sectional ◽  
Bridge Structures ◽  
Vibratory Compaction

Vibratory compaction of bridge deck pavement impacts the structural integrity of bridges to certain degrees. In this study, we analyzed the dynamic response of different types of concrete-beam bridges (continuous beam and simply supported beam) with different cross-sectional designs (T-beam and hollow-slab beam) under vibratory compaction of bridge deck asphalt pavement. The dynamic response patterns of the dynamic deformation and acceleration of bridges under pavement compaction were obtained by performing a series of field experiments and a three-dimensional finite element simulation. Based on the finite element model, the dynamic responses of bridge structures with different spans and cross-sectional designs under different working conditions of vibratory compaction were analyzed. The use of different vibration parameters for different bridge structures was proposed to safeguard their structural safety and reliability.

Reconstruction of the Historic Bridge Located in Portz Insel

2020 ◽  
Vol 868 ◽  
pp. 159-165
Author(s):  
Denisa Boháčová ◽  
Eva Burgetová
Keyword(s):  
Service Life ◽  
Bridge Deck ◽  
Bridge Structure ◽  
Arch Bridge ◽  
Original Frame

The paper presents a structural survey of the arch bridge from the 17th century located in Portz Insel near Mikulov. The purpose of the research was to analyze service life and reliability of the bridge structure including long-term functional durability. There were performed probes in order to search for the original frame foundation and defining a shape of particular arches buried in the ground for decades. The probes also helped to check up the structure of the bridge deck in several places. Currently, throughout 2019 and 2020, the bridge will undergo major reconstruction work in the context of the project „Mikulov, Portz Insel – restructuralisation of the historic countryside“.

Japan TAF Epoxy Asphalt Concrete Design and Steel Bridge Deck Pavement Construction Technology

2013 ◽  
Vol 330 ◽  
pp. 905-910 ◽  
Author(s):  
Cheng Zhu
Keyword(s):  
Asphalt Concrete ◽  
Bridge Deck ◽  
Steel Bridge ◽  
Construction Technology ◽  
Pavement Materials ◽  
Construction Methods ◽  
Epoxy Asphalt ◽  
Pavement Construction ◽  
Epoxy Asphalt Concrete ◽  
Bridge Deck Pavement

The TAF epoxy asphalt concrete (EAC) is a new steel bridge deck pavement materials , the application of the TAF EAC is increasing in China. But the research for some of it's performance and construction technology is not throughly, which results in the useful life of the bridge deck paving materials greatly reducing. This paper focuses on the design and construction methods of the Japanese TAF epoxy asphalt concrete, and take the Humen bridge steel bridge deck pavement repair project in December 2011 for example.

scholarly journals Dynamic Response of Multitower Suspension Bridge Deck Pavement under Random Vehicle Load

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Chenchen Zhang ◽  
Leilei Chen ◽  
Gang Liu ◽  
Zhendong Qian
Keyword(s):  
Dynamic Response ◽  
Orthotropic Plate ◽  
Bridge Deck ◽  
Mechanical Response ◽  
Bending Moment ◽  
Suspension Bridge ◽  
Experimental Program ◽  
Steel Bridge ◽  
Vehicle Load ◽  
Bridge Deck Pavement

Recently, the multitower suspension bridge has been widely used in long-span bridge construction. However, the dynamic response of the deck and pavement system of the multitower suspension bridge under random vehicle load is still not clear, which is of great significance to steel-bridge deck pavement (SBDP) design and construction. To reveal the mechanical mechanism of the steel-bridge deck pavement of the multitower suspension bridge under traffic load, this paper analyzed the mechanical response of the pavement based on case study through the multiscale numerical approach and experimental program. Firstly, considering the full-bridge effect of the multitower suspension bridge, the finite element model (FEM) of the SBDP composite structure was established to obtain key girder segments. Secondly, the influences of pavement layer, bending moment and torque, random traffic flow, and bridge structure on the stress of the girder segment were analyzed. Thirdly, the mechanical response of the pavement layer to the orthotropic plate under random vehicle load was studied. Finally, a full-scale model of the experimental program was established to verify the numerical results. Results show that (1) the pavement layer reduced the stress of the steel-box girder roof by about 10%. In the case of adverse bending moment and torque, the longitudinal and transverse stresses of the pavement layer were mainly concentrated in the stress concentration area near the suspender. Under the action of the random vehicle flow, the stress response of the pavement layer was increased by 40% compared with that under standard load. (2) Three-tower and two-span bridge structures have a great influence on the vertical deformation of the pavement layer under the action of vehicle load. Thus, the pavement material needs to have great deformation capacity. (3) The full-bridge effect has a significant influence on the longitudinal stress of the local orthotropic plate, but a small influence on the transverse stress. (4) There is a good correlation between the experimental measurement results of the full-size model and that of the numerical model. The research results can provide guidance for SBDP design and construction of the multitower suspension bridge.

scholarly journals Research on Asphalt Concrete Pavement Construction Technology for Long Span Steel Bridge Deck

2021 ◽  
Vol 261 ◽  
pp. 02082
Author(s):  
Zhengpu Yang
Keyword(s):  
Service Life ◽  
Bridge Deck ◽  
Layer Structure ◽  
Fatigue Cracking ◽  
Quality Standard ◽  
Steel Bridge ◽  
Construction Technology ◽  
Advantages And Disadvantages ◽  
Long Span ◽  
Bridge Deck Pavement

Steel bridge has the advantages of large span capacity, fast installation speed, easy transportation, easy repair and replacement, and has been widely used in practical engineering. The bridge deck pavement of the steel bridge is a crucial link in the whole building and cannot be ignored. For the long span steel bridge, the bridge deck generally has the phenomenon of fatigue cracking, and the service life is difficult to reach the expected life. Laying a multi-layered protective layer structure on the orthotropic steel bridge deck can not only protect the steel bridge deck, but also increase the service life of the bridge. It also provides support and guarantee for the safety and comfort of the bridge. In addition, it effectively reduces vibration and noise caused by driving. Firstly, the advantages and disadvantages of the three types of steel bridge deck pavement technology commonly used in China are discussed in this paper, the merits of different deck paving techniques are pointed out. Then, the construction technology of the lower cast type + SMA pavement structure is analyzed in combination with a steel bridge deck construction case and the quality standard of steel bridge surface construction mixture and the inspection requirement of SMA construction quality are given in order to provide some reference for similar projects.

Analysis on the Sensitivity of Structure in Girder Steel Bridge Deck Pavement

2011 ◽  
Vol 382 ◽  
pp. 466-470
Author(s):  
De Jia Zhang ◽  
Fen Ye ◽  
Guo Jie Jiang ◽  
Jin Ting Wu
Keyword(s):  
Bridge Deck ◽  
Structure Design ◽  
Design Parameters ◽  
Slab Thickness ◽  
Transverse Strain ◽  
Steel Bridge ◽  
Bridge Structure ◽  
The Finite Element Method ◽  
Bridge Deck Pavement

Bridge structure has important impact on pavement stress, and previous research often analyses separately which is one of the reason for pavement disease. This paper analyses the sensitivity of structure in girder steel bridge deck pavement with the finite element method, obtaining the changing regularity of maximum transverse strain, maximum longitudinal strain, maximum longitudinal displacement of pavement surface, interlaminar shearing stresses with six kinds of the structure design parameters including bridge roof slab thickness, diaphragm plates distance, U rib width, distance, thickness, girder space under the most unfavorable load. The study can offer help for the determination of bridge structure design parameters.

scholarly journals Feasibility Evaluation of a Long-Life Asphalt Pavement for Steel Bridge Deck

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Leilei Chen ◽  
Zhendong Qian ◽  
Daoxie Chen ◽  
Ya Wei
Keyword(s):  
Service Life ◽  
Bridge Deck ◽  
Asphalt Pavement ◽  
Base Layer ◽  
Experimental Program ◽  
Steel Bridge ◽  
Feasibility Evaluation ◽  
Long Life ◽  
Pavement Structure ◽  
Bridge Deck Pavement

In order to extend the service life of the steel bridge deck pavement, a long-life steel bridge deck pavement (LLSBDP) was put forward referring to the concept of long-life asphalt pavement. First, the requirements of the LLSBDP were given, based on which, an LLSBDP structure “EAC + SMA” was proposed. Second, a numerical analysis was performed to evaluate the stress status of the “EAC + SMA” structure. Third, an experimental study was conducted to assess the performance of the pavement material and the pavement structure. Meanwhile, for comparison, the performances of traditional steel bridge deck pavement structure “EAC + EAC” were also studied in the numerical and experimental program. The results showed that, with periodical rehabilitation or reconstruction of the SMA surface layer, the EAC base layer can last for a long life without structural distresses. The proposed structure can meet the requirements of LLSBDP and can be used to extend the service life of the steel bridge deck pavement.

Dynamic response of a bridge deck pavement

2019 ◽  
Vol 172 (4) ◽  
pp. 221-232 ◽  
Author(s):  
Fei Han ◽  
Hu Wang ◽  
Dan-hui Dan
Keyword(s):  
Dynamic Response ◽  
Bridge Deck ◽  
Bridge Deck Pavement
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