• Title/Summary/Keyword: guss asphalt

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Thermal Effect of Guss Asphalt on Upper Steel Deck of Youngjong Grand Bridge (영종대교 상로도로 강상판의 구스아스팔트 열영향)

  • Lee, Wan-Hoon;Lee, Myeong-Jae
    • International Journal of Highway Engineering
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    • v.4 no.1 s.11
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    • pp.171-181
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    • 2002
  • Guss asphalt used in pavement of a steel deck bridge may cause severe stress and displacement on the bridge as it is treated using very high temperatures ranging from 220oC to 260cC. Therefore, it is critical to estimate the thermal effect of Guss asphalt on the steel deck bridge before the width and pattern of the unit portion are decided in order to minimize impact. In this study, we have conducted a series of numerical analysis of the upper road of Youngjong Grand Bridge, verified the feasibility of numerical value analysis by comparing the results with the data measured, and studied the thermal effects of Guss asphalt on the steel deck bridge according to temperature changes.

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Thermal Effects of Asphalt Pavement on Steel Deck Arch Bridge (강바닥판 아치교의 아스팔트 포장 열영향)

  • Lee Wan-Hoon;Lee Tae-Yeol;Chung Heung-Jin
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2006.04a
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    • pp.581-588
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    • 2006
  • Now, a long span and special types of steel deck bridges like as suspention or cable state bridges are increasing and Guss Asphalt used in pavement. But Guss Asphalt may caused severe stress and displacement of the bridge as it is treated using very high temperature ranging from $220^{\circ}C\;to\;260^{\circ}C$. In this paper, a series of numerical tests of a steel deck box arch bridge were conducted to estimate the thermal effect of a steel deck bridge according to temperature changes.

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Numerical Modeling of Heat Analysis of Bridge Pavement (포장 열영향 해석을 위한 아스팔트 열원 평가)

  • Lee, Wan-Hoon;Yoo, Byoung-Chan;Chung, Heung-Jin
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2007.04a
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    • pp.253-258
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    • 2007
  • Guss asphalt used in pavement of a steel deck bridge may cause severe stress and displacement on the bridge as it is treated using very high temperatures ranging from $220^{\circ}C$ to $260^{\circ}C$. Therefore, it is critical to estimate the thermal effect of Guss asphalt on the steel deck bridge before the width and pattern of the unit portion are decided to minimize impact. In this study, introduce a new analysis method styled the Heat source of equivalent of the cable stayed bridge were conducted to verify the feasibility of numerical value analysis by comparing the results with the data measured. The thermal effects of Guss asphalt on the steel deck bridge according to temperature changes were also studied.

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A Study on the Heat Source Equation for the Thermal Effect Analysis of Guss Asphalt Pavement (구스 아스팔트의 열 영향 해석을 위한 열원방정식에 관한 연구)

  • Park, Hyun-Woong;Lee, Wan-Hoon
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.23 no.3
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    • pp.96-102
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    • 2019
  • The study of thermal effect on the structure is carried out in the case of Guss asphalt which is paved at the temperature of $240^{\circ}C$ or higher in the bridge pavement of the steel deck bridges. However, studies on the heat source data applicable to numerical analysis are insufficient, the temperature load is used as a joint load. In this study, the heat source equations that can be directly loaded on the plate elements, although limited, are presented using the measured temperature data in the Guss asphalt pavement and its validity is confirmed by a brief numerical analysis.

The Variety of Reaction at the Three Span Continuous Steel Box Girder Bridge under The Thermal Effect of Guss Asphalt (구스 아스팔트의 열 영향이 3경간 연속 강상판 박스 거더교의 반력에 미치는 영향)

  • 김성남;고윤기;한택희;강영종
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2004.10a
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    • pp.195-202
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    • 2004
  • After the 1990's, Guss asphalt has chosen in Korea for using in pavement of a steel deck bridge because of it's distinguish ability about water proof and so on. But on the other hand it may cause server stress and displacement on the bridge as it is treated using very high temperature ranging from 220℃ to 260℃. Therefore it is critical to estimate the thermal effect of Guss asphalt on the steel deck bridge before the width and pattern of the unit portion are decided to minimize impact. In this study, a serious of numerical tests of the some steel box bridges were idealized were conducted to verify the feasibility of numerical value analysis. The parametric study was performed to present design proposal about the Box section dimensions and the diaphragm spacing.

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An Experimental Study on the Binder Adhesion Performance and Mixture Deformation Strength of Polymer Asphalt (폴리머 아스팔트의 유제 부착성능 및 혼합물 변형강도에 관한 실험적 연구)

  • Choi, Jae-Min;Kim, Kyeong-Jin;Lee, Seung-Yong;Kim, In-Joong;Jeong, Yong-Hwi
    • Journal of the Society of Disaster Information
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    • v.16 no.3
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    • pp.602-610
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    • 2020
  • Purpose: This paper aims to develop an asphalt pavement system with reduced cracks, structural stability and waterproofing at sub-zero temperature conditions. Method: Under various temperature conditions, SIS polymer asphalt, normal asphalt, and guss asphalt were tested for adhesion strength of the binder and deformation strength of the mixture. Result: The adhesion strength of asphalt binder was higher in SIS polymer asphalt than that of normal asphalt and guss asphalt. The deformation strength of the asphalt mixture was almost the same as that of SIS polymer asphalt and normal asphalt. The energy absorption of the SIS polymer asphalt mixture was relatively higher than that of the normal asphalt mixture and the guss asphalt mixture. Conclusion: The maximum load of the SIS polymer asphalt mixture was lower than that of the guss asphalt mixture. However, in sub-zero temperature conditions, sufficient energy absorption was secured by stable load reduction. Therefore, it is expected to improve the durability of asphalt pavement by reducing the occurrence of microcracks with stable fracture behavior.

A Comparative Study on Pavement Techniques for Steel Bridge Decks (강상판형교 교면포장 공법 비교 연구)

  • Kim, Nakseok
    • Journal of the Society of Disaster Information
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    • v.8 no.2
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    • pp.100-107
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    • 2012
  • The main purpose of this research is to propose advanced bridge-decks surfacing from the examples of In-Cheon bridge with Guss asphalt and Gyul-Hyeon bridge with stone matrix asphalt(SMA) concrete. The research results presented that the Guss asphalt concrete pavement was weak when rutting was developed due to the low resistance at high temperatures. The SMA concrete pavement demonstrated good resistance to plastic deformations and was easy to maintain pavement conditions. The results mentioned above are generalized in developed counties where surfacing pavement techniques for steel bridge-decks are advanced. However, due to the lack of construction experiences in Korea, appropriate construction guidelines and organized research for the steel bridge deck pavements are necessary for more advanced steel bridge decks surfacing.