In order to achieve pull-through of transverse rebar of one-way precast slab to form two-way slab without wet operation or welding

considering the operability and efficiency of construction

steel plate composite blind bolts as rebar mechanical connectors were proposed. To study the tensile properties of the connectors

a monotonic tensile test was performed on 22 specimens. The research parameters were steel plate strength

number of bolts

pre-tightening force

and anchorage length

and the failure form

ultimate bearing capacity

load-displacement curve

and deformation capacity were investigated. Research results show that there were two failure modes of the specimens including fracture and pull-out of rebar. For the quenched and tempered 45＃ steel cover plate

the critical anchorage length of the reinforcing bar of the connector was between 2d and 3d. When it was less than the critical anchorage length

the rebar experienced scraping plough type pull-out; when it was larger than the critical anchorage length

the rebar would fracture. When the number of the connecting bolts was four

the specimens realized equal-strength connection of rebars. With the decrease in the width of the connecting cover

the critical anchorage length increased. Under the same anchorage length

the tensile strength of the joints increased with the increase in the pre-tightening force of the bolts. For the Q460C high-strength steel cover plate

the failure modes were deformation of the tooth nails and pull-out of the rebar. Under the same experimental conditions

the failure modes of the specimens with ribbed bars and rounded steel bars were the same. The formula for calculating the tensile bearing capacity of the proposed connector was proposed

and the analytical values agreed well with the experimental results

which could provide references for relevant design and research.