| 摘要 |
The assembly comprises upper 4 and lower 2 pre-cast concrete or cementitious column sections containing a rebar 10, the sections being connected through an intermediate concrete slab 6. The lower face of the upper section has a projecting bar 18 that is held by grouting filler within in a void tube 20 in the slab, the void tube being coupled to a rebar in the lower section. A triangular array of swivel sockets receives a swivel thread connector 16 which is coupled to a rebar in the lower column section and projecting from the slab. The swivel connectors may comprise a swivel bolt mounted in a housing such the bolt may slide and rotate but not move axially relative to the housing. The rebars may be held in place by a template at their tops and bottoms. The grout may be cementitious or polymer based. |
