JPS58505A - Apparatus for preventing mutual detachment of adjacent upper structures of bridge - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention This invention provides a structure in which adjacent superstructures of a bridge mutually support the edge ends of the superstructures, and a single support supports the lowest stage of the By providing a structure that doubles as both structures and connecting the upper structure,
The present invention relates to a device that mutually prevents adjacent superstructures of a bridge from separating from each other.

Traditionally, the adjacent superstructure of a bridge is one substructure (pier).
They are individually supported by the upper two sets of bearings. Due to the subsidence slope of the substructure, the adjacent superstructures are displaced individually.

If the displacement of the lower structure is large, one series of upper structures may be displaced along with the lower structure, and other upper structures may fall off from the lower structure. The individual displacements of adjacent superstructures are due to the structure that separated the adjacent superstructures.

An object of the present invention is to prevent adjacent upper structures supported by one lower structure from being displaced or falling off by taking measures to prevent them from separating from each other.

The invention is as follows. For both adjacent superstructures of a bridge, protrusions are formed at one or several places on the edges of the sides in contact with each other, and the protrusions are assembled into an overlapping structure of two or several levels above and below.

A movable support is provided in the gap between the different protrusions, and the lower protrusion supports the upper protrusion in an overlapping manner. The arrangement of two or more stages of upper and lower protrusions and the structure of the movable support provides a mechanism for mutually supporting the adjacent upper structures and bringing the adjacent upper structures into a connected state. The opposite edge of the adjacent superstructure is supported by a bearing on the substructure. With this configuration, the adjacent upper structures become one connected upper structure. The lowest projection of the bridge is supported by a single movable support, and this movable support is provided on the lower structure (pier). With this configuration, a single support doubles as support for both adjacent superstructures. When the substructure (pier) sinks and tilts, the adjacent superstructure becomes detached from the single support that is tilted below the pond, becomes connected by the mutual support structure, and is supported by the supports at both ends to form a series of superstructures. , to prevent adjacent superstructures from separating from each other. This measure prevents the adjacent superstructure from being affected by the subsidence and inclination of the substructure (pier) and prevents it from being displaced or falling off. Three examples are shown below.

In the bridge with two superstructures shown in Figure 1, two protrusions are made at the upper and lower ends of the right edge of the left superstructure, and one protrusion is made at the center of the right superstructure. The three protrusions are assembled into a two-tier structure with upper and lower layers. A movable support is provided in the gap between two stages of upper and lower stages between the projecting parts that are mounted on opposite sides, and the lower projecting part supports the upper projecting part in two stages in an overlapping manner. The arrangement of the two upper and lower protrusions and the structure of the movable support provides a mechanism that allows the two upper structures to mutually support each other and create a connected state. The edges of the two sets of superstructures on the opposite side from the misalignment are supported by supports on the substructure. With this configuration, the two upper structures become one connected upper structure. The lowest projection of the bridge is supported by a single movable support, and this movable support is provided on the lower structure (pier). With this configuration, a single support serves as a support for both of the two upper structures. When the pier sinks and tilts, the two sets of superstructures are separated from the single support that has sunk and tilted, are connected by a mutual support structure, and are supported by the supports at both left and right ends to form one set of superstructures, To prevent two superstructures from separating from each other. The upper and lower two-tiered structure shown in FIG. 1 can be changed to an upper and lower three-tiered structure similar to the case shown in FIG. 2 below.

In the bridge with three superstructures shown in Fig. 2, protrusions are made at two places, at the center and at the bottom of the edges of the adjacent sides of the superstructure on both the left and right sides, and at the tops of the edges on both sides of the central superstructure. Make protrusions in two places in the center. The four protrusions are assembled into a three-tiered structure with three layers above and below. Movable supports are provided between the projecting parts that are mounted on opposite sides in three stages above and below, and the lower projecting part supports the upper projecting part in three stages in an overlapping manner. The arrangement of the three upper and lower protrusions and the structure of the movable support provides a mechanism that allows the two upper structures to mutually support each other and create a connected state. The configuration with the two-part overlapping structure serves as a mechanism for connecting the three upper structures into one. The left end of the left superstructure and the right end of the right superstructure are supported by supports on the substructure. The lowest protrusion of the two overlapping structures is supported by a single movable support,
This movable support will be provided on the lower structure (pier). This configuration results in a structure in which two single supports serve as supports for both of the two upper structures. With these configurations, the three upper structures become one connected upper structure. If one or two of the piers sinks and tilts, the three superstructures are released from the single bearing that is tilted, are connected by the mutual support structure, and are supported by the supports at both left and right ends to form one series. The three upper structures are configured to prevent the three upper structures from separating from each other. A structure with three upper and lower stages can be changed to a structure with two upper and lower stages.

In the bridge with four superstructures shown in Fig. 3, protrusions are made at two places, at the center and at the lower end of the adjacent edges of the superstructures on both left and right sides, and at the left edge of the second superstructure from the left. Create protrusions in two places at the top and center, create protrusions in two places at the center and bottom of the right edge, and make protrusions in two places at the top and center of both edges of the third superstructure from the left. Build a department. The four protrusions are assembled into a three-tiered structure with three layers above and below. A movable support is provided in the gap between the different projections and the upper and lower three stages, and the lower projection supports the upper projection in three stages overlappingly. The lowest protrusions of the three overlapping structures are supported by a single movable support, and this movable support is provided on the lower structure (pier). This configuration results in a structure in which three single supports serve as supports for both of the two upper structures. Below, the same configuration as in the case of the triple superstructure prevents the quadruple superstructure from separating from each other.

The same applies to bridges with multiple superstructures.

As described above, the present invention has the effect of preventing the upper structure of a bridge from being displaced or falling off.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of a mutual separation prevention device for a bridge superstructure having two superstructures, and FIG. 2 is a longitudinal cross-sectional view of a mutual separation prevention device for a bridge superstructure having three superstructures. FIG. 3 is a longitudinal sectional view of a device for preventing mutual separation of the superstructures of a bridge with four superstructures. 1. ．． ．． ．． superstructure, 2. ．． ．． ．． Substructure (pier), 3
．． ．． ．． ．． Substructure (abutment, piers), 4. ．． ．． ．． protrusion,
5. ．． ．． ．． Double bridge structure, 6. ．． ．． ．． Mutual support structure, 7
．． ．． ．． ．． Single bearing structure. Patent applicant Matsuzo Ueno

Claims (1)

[Scope of Claim] A device for preventing mutual separation of adjacent superstructures of a bridge, which uses a mutual support structure and a single support structure as a connection mechanism for one adjacent superstructure. 2. The device for preventing mutual detachment of adjacent superstructures of a bridge according to claim 1, wherein the two mutual support structures have a structure in which the edges of the adjacent superstructures are stacked in two or several stages. 3. The single support structure is a support structure that supports the lowest stage of the bridge and serves as a support structure for both adjacent superstructures. Mutual separation of adjacent superstructures of the bridge according to claim 1, item 2. Prevention device.