Study on fire resistance of prefabricated concrete beam-column joint with end-plates

Abstract

Purpose

The purpose of this study is to put forward a high-strength bolt end-plate connection of prefabricated concrete beam-column joint and carry out the pseudo-static test.

Design/methodology/approach

ABAQUS finite element software is used to study the fire resistance performance of high-strength bolt end-plate prefabricated joint. This mainly considers the influence of axial compression ratio, screw preload, end-plate thickness and steel hoop thickness.

Findings

The results show that the thickness of end-plate and steel hoop has a certain effect on the fire resistance. The change of screw preload has little effect on the fire resistance limit. Compared with the cast-in-place concrete beam-column joint, the deformation trend of column-beam end of the fabricated joint is basically the same as that of cast-in-place joint.

Originality/value

To study the mechanical performance of this kind of joint more comprehensively, the finite element software is used to study the prefabricated concrete beam-column joint with end-plates, and the effects of axial compression ratio, screw preload, end-plate thickness and steel hoop thickness on the fire resistance of joints are mainly considered.

Citation

Li, S., Deng, L. and Di, Z. (2020), "Study on fire resistance of prefabricated concrete beam-column joint with end-plates", Journal of Structural Fire Engineering, Vol. 11 No. 4, pp. 447-460. https://doi.org/10.1108/JSFE-01-2020-0001