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Development of Probabilistic Temperature Loadsfor a PC Bridge in Oklahoma

 Development of Probabilistic Temperature Loadsfor a PC Bridge in Oklahoma
Autor(en): , ,
Beitrag für IABSE Conference: Bridges and Structures Sustainability - Seeking Intelligent Solutions, Guangzhou, China, 8-11 May 2016, veröffentlicht in , S. 699-707
DOI: 10.2749/222137816819259031
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Temperature effects have always been considered to be one of the critical issues that affect the performance of traditional PC bridges. In order to develop an efficient temperature loading model fo...
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Autor(en):


Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Conference: Bridges and Structures Sustainability - Seeking Intelligent Solutions, Guangzhou, China, 8-11 May 2016
Veröffentlicht in:
Seite(n): 699-707 Anzahl der Seiten (im PDF): 9
Seite(n): 699-707
Anzahl der Seiten (im PDF): 9
Jahr: 2016
DOI: 10.2749/222137816819259031
Abstrakt:

Temperature effects have always been considered to be one of the critical issues that affect the performance of traditional PC bridges. In order to develop an efficient temperature loading model for predicting bridge temperature-induced response, numerical and analytical studies were conducted on a PC girder bridge in Oklahoma. Firstly, a heat transfer model was established with hourly climate input data to estimate the temperature distribution and compared with monitoring counterparts. Secondly, probabilistic models of temperature loading were proposed based on environmental conditions from the 20-year climatic data and heat transfer analytical results. Finally, and the temperature loading values for a 75-year return period were determined and compared with recommended values in AASHTO LRFD(2012). The proposed temperature loading model can be referred to aid engineers in predicting the thermal behaviour of PC girders in Oklahoma.

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