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《Building Science Research of Sichuan》 2005-05
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Calculation of normal section crack resistance of prestressed concrete composite beams with U-shaped precast beam

ZENG Chui-jun~(1,2),WU Fang-bo~2,ZHU Ming-qiao~1(1.School of Civil Eng.,Hunan Univ.of Science and Technology,Xiangtan 411201,China;2.College of Civil Engineering,Hunan University,Changsha 410082,China)  
A new kind of composite beam,prestressed concrete composite beam with U-shaped precast beam,is presented and its structural characters are discussed.Then the external and internal study on crack resistance of prestressed concrete composite beam is simply introduced.Based on the analysis of stress and strain on precast beam section at manufacturing,transporting and assembling stages and composite beam section at using stage,calculating methods of normal section crack resistance at corresponding stage are presented in elastic theory.
【CateGory Index】: TU378.2
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