| 摘要 |
A concrete box culvert unit, a connection structure thereof, and a concrete box culvert having the connection structure are provided to improve shear strength of junction as the filler filled in the anchoring groove has a wedge effect. A connection structure of concrete box culvert units includes anchoring grooves(2) which are formed on the junction of each culvert unit. The anchoring groove has an opening(21) smaller than the bottom(22), and a tensioner through hole. A two-way tensioner coupling device having an anchoring function is placed on the anchoring groove. Tensioners(3a,3b) are arranged on both sides of the tensioner through hole, fixed to the two-way tensioner coupling device and connected to each other. The two-way tensioner coupling device includes a coupling member(101), a pair of wedge cone members(102) provided on both ends of the coupling member, and a pair of wedges(103) clamping the ends of the tensioners and fitted to the wedge cone members. |
