A study on temperature variation of steel box girder for construction of key-segment closure of partially earth-anchored cable-stayed bridges

S. J. Park, Y. G. Kim, Sang Hyo Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Partially earth-anchored cable stayed bridge can be constructed using the free cantilever method (FCM) which is the most widely used technique for bridge construction. However, it is difficult to apply the set back & reset back work, because of the existence of the earth-anchored cables. Due to such difficulty, an innovative key-segment closure technique was proposed using the thermal prestressing method (TPSM). And solar radiation causes unequal temperature distribution on the steel box girder section. Thus the unequal temperature distribution is a critical factor for detailed construction management. So this study aims to propose a prediction method for temperature variation and examined the construction details of key-segment closure. The proposed method considers solar exposure and wind velocity during the prediction of temperature variation, which is the most momentous parameters for the temperature distribution in the steel-box girder. In order to reach target temperature of the steel box girder, the analyses are performed considering seasonal effects with different target temperatures. The results showed that the proposed method released accurate results and maintain the target temperature consistently. It can be concluded that the proposed method can be effectively used in predicting heating temperature, time and the time required of heating during a closure work in cable-stayed bridges. However, it is necessary to have solar exposure and wind velocity data in order to get accurate result.

Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
Pages3638-3642
Number of pages5
Publication statusPublished - 2012 Jul 23
Event6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012 - Stresa, Lake Maggiore, Italy
Duration: 2012 Jul 82012 Jul 12

Publication series

NameBridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management

Other

Other6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012
CountryItaly
CityStresa, Lake Maggiore
Period12/7/812/7/12

Fingerprint

Cable stayed bridges
Earth (planet)
Steel
Temperature distribution
Temperature
Heating
Prestressing
Solar radiation
Cables

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Park, S. J., Kim, Y. G., & Kim, S. H. (2012). A study on temperature variation of steel box girder for construction of key-segment closure of partially earth-anchored cable-stayed bridges. In Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management (pp. 3638-3642). (Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management).
Park, S. J. ; Kim, Y. G. ; Kim, Sang Hyo. / A study on temperature variation of steel box girder for construction of key-segment closure of partially earth-anchored cable-stayed bridges. Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management. 2012. pp. 3638-3642 (Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management).
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abstract = "Partially earth-anchored cable stayed bridge can be constructed using the free cantilever method (FCM) which is the most widely used technique for bridge construction. However, it is difficult to apply the set back & reset back work, because of the existence of the earth-anchored cables. Due to such difficulty, an innovative key-segment closure technique was proposed using the thermal prestressing method (TPSM). And solar radiation causes unequal temperature distribution on the steel box girder section. Thus the unequal temperature distribution is a critical factor for detailed construction management. So this study aims to propose a prediction method for temperature variation and examined the construction details of key-segment closure. The proposed method considers solar exposure and wind velocity during the prediction of temperature variation, which is the most momentous parameters for the temperature distribution in the steel-box girder. In order to reach target temperature of the steel box girder, the analyses are performed considering seasonal effects with different target temperatures. The results showed that the proposed method released accurate results and maintain the target temperature consistently. It can be concluded that the proposed method can be effectively used in predicting heating temperature, time and the time required of heating during a closure work in cable-stayed bridges. However, it is necessary to have solar exposure and wind velocity data in order to get accurate result.",
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Park, SJ, Kim, YG & Kim, SH 2012, A study on temperature variation of steel box girder for construction of key-segment closure of partially earth-anchored cable-stayed bridges. in Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management. Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management, pp. 3638-3642, 6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012, Stresa, Lake Maggiore, Italy, 12/7/8.

A study on temperature variation of steel box girder for construction of key-segment closure of partially earth-anchored cable-stayed bridges. / Park, S. J.; Kim, Y. G.; Kim, Sang Hyo.

Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management. 2012. p. 3638-3642 (Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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M3 - Conference contribution

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Park SJ, Kim YG, Kim SH. A study on temperature variation of steel box girder for construction of key-segment closure of partially earth-anchored cable-stayed bridges. In Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management. 2012. p. 3638-3642. (Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management).