| 摘要 |
A high strength grouted pipe coupler by which pairs of spaced axially aligned steel reinforcement bars (i.e. rebars) are reliably spliced to one another for the purpose of connecting together and providing continuous support for contiguous columns, walls, beams, and similar structures to enable buildings, parking structures, bridges, subways, and airports, to be better able to survive a seismic event. The coupler includes a hollow steel pipe to receive opposing ends of the pair of reinforcement bars. A first of the reinforcement bars is upset to include a relatively wide head, and a relatively rigid spiral wire surrounds the upset head of the first reinforcement bar at the interior of the hollow pipe. The hollow pipe is filled with a cement grout which engulfs the upset head of the first reinforcement bar and the spiral wire extending therearound. The upset head and the spiral wire of the coupler cooperate to anchor the upset end of the first reinforcement bar within the cement grout and prevent the cement grout from being pulled out of the hollow pipe in response to tension and compression forces.
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