Experiment study on fatigue property of concrete filled steel pipe K-joints

Zhong Xingu,Yang Sheng,Shi Weihua

Strategic Study of CAE ›› 2011, Vol. 13 ›› Issue (9) : 97 -100.

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Strategic Study of CAE ›› 2011, Vol. 13 ›› Issue (9) : 97 -100.

Experiment study on fatigue property of concrete filled steel pipe K-joints

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Abstract

Based on the truss arch of Xiangtan 4th Bridge, we made fatigue property test on concrete filled steel pipe K-joints of three different specifications, and calculated the amplitude of fatigue load of concrete filled steel pipe K-joints with hot-spot stress approach in this paper, which presented that hot-spot stress approach can be used to assess fatigue life of concrete filled steel pipe, and fatigue property of concrete filled steel pipe K-joints was obviously better than that of steel pipe K-joints. Moreover, the S—N curve of concrete filled steel pipe K-joints proposed by this paper would be of referential significance for building design criterion of fatigue life of concrete filled steel pipe K-joints.

Keywords

concrete filled steel pipe K-joints / fatigue property / S—N curve

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Zhong Xingu,Yang Sheng,Shi Weihua. Experiment study on fatigue property of concrete filled steel pipe K-joints. Strategic Study of CAE, 2011, 13(9): 97-100 DOI:

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