Abstract
This paper presents the results of two high-temperature tensile tests (steady-state tests and transient-state tests) of splice connections with high-strength bolts. First, steady-state tensile tests at high temperature were conducted to obtain the load-deformation behavior and tensile resistance of the connections. The tensile test results indicated that the ductility of connections increased when the steel temperature was over 500 °C. Second, transient-state tensile tests at constant load and increased temperature were conducted to investigate the influence of deformation rate on resistance. In the transient-state tests, the specimens were subjected to a constant load that was the maximum load from the steady-state test or from the calculated tensile resistance based on AIJ recommendations. In the ultimate stage under the transient state, the deformation rate for the connection considerably increased and contributed to improved resistance at elevated temperature. On the basis of these experimental results, this paper discusses the tensile resistance of splice connections with high-strength bolts exposed to fire.
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Abbreviations
- A bs :
-
Cross-section area at the bolt shank (mm2)
- e :
-
End distance (mm)
- P u :
-
Tensile resistance of the splice connection (kN)
- P u1 :
-
Tensile resistance for the bolt in shear failure (kN)
- P u2 :
-
Tensile resistance for the tear-out failure (kN)
- t :
-
Main plate thickness (mm)
- σ bu :
-
Tensile strength of the bolt (N/mm2)
- σ u :
-
Tensile strength of the plate (N/mm2)
References
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Acknowledgment
This work was supported by JSPS KAKENHI Grant Number 24560677.
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© 2017 Springer Science+Business Media Singapore
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Ando, S., Dwiputra, R., Hirashima, T. (2017). Tensile Resistance of Splice Connections with High-Strength Bolts in Fire. In: Harada, K., Matsuyama, K., Himoto, K., Nakamura, Y., Wakatsuki, K. (eds) Fire Science and Technology 2015. Springer, Singapore. https://doi.org/10.1007/978-981-10-0376-9_32
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DOI: https://doi.org/10.1007/978-981-10-0376-9_32
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