Experimental study on seismic behavior of steel end-plate splice nodes of fabricated reinforced concrete beams
To further improve the on-site assembly efficiency of large-span prefabricated concrete frames,a new type of dry prefabricated concrete frame node was proposed,which formed a load-bearing frame structure through beam end plate connection,thereby achieving span by span and three-dimensional cross assembly construction.Three prefabricated specimens and one cast-in-place specimen were prepared in a 1∶3 scale ratio and subjected to low cycle repeated load tests.The deformation process,failure mode,and influence of end plate thickness and steel sleeve width on bearing capacity,ductility and energy dissipation capacity of the node were studied and analyzed.The experimental results show that the node has strong stiffness and can effectively improve the overall bearing capacity and seismic performance of the beam.
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维普
