Joint for casing and casing connecting structure using said joint

Abstract

A casing joint and a casing connection structure using the same, the casing joint (1 ) is arranged between the adjacent concrete bridge decks (2) (3), and the spiral pipe part (9) on the side of the first connecting pipe (7) is connected to the PC sleeve (4) on one side. pipe (7), move the second connecting pipe (8) in the direction of the pipe axis, and while making it rotate around the pipe axis, connect the spiral pipe part (11) of the second connecting pipe (8) to the other side PC casing (5). The PC casing buried in the concrete bridge deck can be connected simply and reliably, and the construction cost can be reduced.

Description

technical field [0001] The present invention relates to a gap filling part, A casing joint for connecting PC casings embedded in these concrete bridge decks, and a casing connection structure using the joint. Background technique [0002] Conventionally, when constructing a PC girder bridge, etc., a concrete bridge deck in which PC casings for penetrating PC steel materials are embedded is carried into the work site and erected. In this way, generally, the PC sleeves of the adjacent concrete decks are connected at the gap filling portion between these concrete decks, and then concrete is poured into the gap filling portion to integrate the concrete decks. [0003] In this construction process, the connection of PC sleeves in the gap filling part between concrete bridge decks, such as Figure 8 with Figure 9 As shown, firstly, on the joint sleeve 35 connected to the PC sleeve 33 of the bridge deck 31 on one side, the PC sleeve 40 for connection is screwed in. Similarly, a...

AI Technical Summary

Problems solved by technology

[0005] However, in such a connection structure, the number of times of spiral bonding and tape winding between members is large, and the connection operation is troublesome, and since many connection members such as joint sleeves and tapes are required, the connection operation of the PC sleeve is troublesome, There is a problem that construction cost rises

[0006] In addition, in the state where the concrete bridge deck is erected, the axial centers of the adjacent PC casings are often misaligned vertically, horizontally, and vertically, and the misalignment may occur at a maximum of about 20 mm.

In this way, if misalignment occurs between the PC sleeves, the connection operation between the PC sleeves will be more troublesome, and in some cases, poor connection will occur.

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