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Steel and Composite Structures Volume 21, Number 2, June10 2016 , pages 343-356 DOI: https://doi.org/10.12989/scs.2016.21.2.343 |
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Study on seismic performance of connection joint between prefabricated prestressed concrete beams and high strength reinforcement-confined concrete columns |
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Haotian Jiang, Qingning Li, Weishan Jiang and De-Yi Zhang
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| Abstract | ||
| As the common cast-in-place construction works fails to meet the enormous construction demand under rapid economic growth, the development of prefabricated structure instead becomes increasingly promising in China. For the prefabricated structure, its load carrying connection joint play a key role in maintaining the structural integrity. Therefore, a novel end plate bolt connecting joint between fully prefabricated pre-stressed concrete beam and highstrength reinforcement-confined concrete column was proposed. Under action of low cycle repeated horizontal loadings, comparative tests are conducted on 6 prefabricated pre-stressed intermediate joint specimens and 1 cast-inplace joint specimen to obtain the specimen failure modes, hysteresis curves, skeleton curves, ductility factor, stiffness degradation and energy dissipation capacity and other seismic indicators, and the seismic characteristics of the new-type prefabricated beam-column connecting joint are determined. The test results show that all the specimens for end plate bolt connecting joint between fully prefabricated pre-stressed concrete beam and highstrength reinforcement-confined concrete column have realized the design objectives of strong column weak beam. The hysteretic curves for specimens are good, indicating desirable ductility and energy dissipation capacity and seismic performances, and the research results provide theoretical basis and technical support for the promotion and application of prefabricated assembly frames in the earthquake zone. | ||
| Key Words | ||
| pre-stressed structure; beam-column joint; low cycle loading; shear resistance of joint; ductility factor | ||
| Address | ||
| (1) Haotian Jiang, Qingning Li, Weishan Jiang: School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; (2) De-Yi Zhang: Department of Engineering Mechanics, Ontario Power Generation, Toronto, ON, M5G 1Z5, Canada. | ||