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《Engineering Mechanics》 2006-04
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THERMAL STRESS ANALYSIS OF REINFORCED CONCRETE

BAO Yi-wang1 , HUANG Peng-fei2 , YAO Yan1 , HAN Yan-fei1 (1. China Building Materials Academy, Beijing 100024, China; 2. Department of Structural Engineering, Tongji University, Shanghai, 200092, China)  
Stresses in reinforced concrete beam under synergistic effects of cyclic freeze-thaw, deicing-salt attack, rebar corrosion and four-point bending were analyzed based on thermomechanics and mechanics of materials,and the distribution of these stresses with damage evolution in concrete were investigated. As a result, a series of formula for calculating thermal and mechanical stresses in the concrete were presented. It was found that the thermal stresses are distributed nonlinearly along the length of the beam sample and that the bending stresses depend on the ratio of steel modulus to the concrete modulus. The results indicate that the damage of the concrete under the synergistic loads is a combination of thermal fatigue and corrosion penetration.
【Fund】: 国家基础研究发展规划“973”项目(2001CB6107);; “863”项目(2001AA339010);; 国家杰出青年基金项目(50125204)
【CateGory Index】: TU375
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【References】
Chinese Journal Full-text Database 1 Hits
1 LI Hong-wan, ZOU Zhen-zhu, SU Mu-biao, ZHANG Kai(Research Institute of Large Structural Health Diagnosis and Control, Shijiazhuang Railway Institute, Shijiazhuang050043);A Study of the Influence of Temperature Changes on the Structural Modal Parameters[J];Traffic Engineering and Technology for National Defence;2007-01
【Citations】
Chinese Journal Full-text Database 1 Hits
1 QIN Weizu;HOLISTIC VIEW OF DURABILITY OF CONCRETE STRUC TURES[J];Architecture Technology;2003-01
【Co-references】
Chinese Journal Full-text Database 1 Hits
1 FAN Ke-qing~1,NI Yi-qing~2,GAO Zan-ming~2(1.School of Information,Wuyi University,Jiangmen 529020,Guangdong,China;2.Department of Civil and Structural Engineering,The Hong Kong Polytechnic University,Hong Kong,China);Research on Temperature Influences in Long-Span Bridge Eigenfrequencies Identification[J];China Journal of Highway and Transport;2006-02
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 Wu Zhongwei(China Building Materials Academy,Beijing, 100024);Green High Performance Concrete and Innovation[J];JOURNAL OF BUILDING MATERIALS;1998-01
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