JPH022737Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a bridge consisting of a floor assembly structure and a main girder structure.

[Conventional technology] In conventional bridges, a floor assembly such as a steel deck slab is placed on the main girder arranged parallel to the bridge axis direction (bridge longitudinal direction), and the floor assembly and the main girder that extend in the bridge axis direction are connected. The overlapping surfaces are welded to form an integral pedestal, and asphalt pavement is applied on the floor assembly.

[Problems that the invention attempts to solve] However, in such conventional bridges,
Because the joint between the main girder and the floor assembly is a line, construction workability is poor, and if the floor assembly is damaged and restoration work is required, it is difficult to take apart the floor assembly, making it extremely difficult. It had become a tedious task.

The present invention aims to improve the workability of erection work and to facilitate restoration work.

[Means for Solving the Problems] The present invention has a configuration in which only the girder ends of the floor assembly are fully connected to the main girder, and other areas are partially connected.

[Function] Therefore, the floor assembly can be easily taken apart by untying the partial joints, and restoration work can be easily performed.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, a floor assembly 6 consisting of cross beam members 2, longitudinal beam members 3, steel deck slabs 4, etc. is placed on the main girder 1 arranged parallel to the bridge axis direction, The girder end of the floor assembly 6 (the left end in FIG. 1) is partially connected to the main girder 1 with high-tensile bolts 5, and the girder end of the floor assembly 6 is connected to the main girder 1. The entire surface is connected with high tension bolts 5.

In the above, the girder ends of the floor assembly 6 are most likely to receive shearing force between them and the main girder 1 due to the running of automobiles, etc., compared to other parts. Therefore, in the present invention, the girder ends of the floor assembly 6 are connected to the main girder 1 by a large number of bolts 5 to increase the strength. On the other hand, floor assembly 6
The area excluding the girder ends is not subjected to shearing force compared to the girder ends. Therefore, there is no need to combine them completely,
In the present invention, only appropriately spaced positions are connected by bolts 5. In addition, in this way, since the range of the floor assembly 6 excluding the girder ends is only partially connected to the main girder 1, if the floor assembly 6 is damaged and restoration work is required, it is possible to partially connect the floor assembly 6 to the main girder 1. By removing the bolts 5, the floor assembly 6 can be easily taken apart and replaced with a new floor assembly.

Further, in the above embodiment, a large number of bolts 5 were used to completely connect the girder ends of the floor assembly 6 to the main girder 1, but as shown in FIG.
It is also possible to combine the entire surface using .

That is, the required number of dowels 7 are fixed on the girder end of the main girder 1, and the longitudinal girder members 3 of the floor assembly 6 are arranged so as to rest on the end of the main girder 1, and the longitudinal girder members 3 are placed opposite to each other. A space for concrete 10 to be placed is formed by a partition plate 9 provided on the surface, and the concrete 10 is placed after each longitudinal girder member 3 is connected by a connecting fitting 8.

Even with this method, the same effects as those of the embodiment described above can be achieved.

In the above embodiments, a floor assembly using steel deck slabs was explained, but floor assembly using reinforced concrete floor slabs, PC floor slabs, etc. may also be adopted, and various other changes may be made without departing from the gist of the present invention. Of course you can get it.

[Effects of the invention] As explained above, according to the bridge of the invention, only the ends of the girder are fully connected to the main girder, and the other areas are only partially connected, which reduces the construction work. This has the excellent effect of improving workability and making restoration work easier.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of an embodiment of the present invention;
2 is an explanatory view of another example corresponding to the - arrow direction in FIG. 1, and FIG. 3 is an explanatory diagram of another example corresponding to the - arrow direction in FIG. 1 indicates the main girder, 5 indicates bolts, 6 indicates floor assembly, and 10 indicates concrete.

Claims (1)

[Scope of utility model registration request] A bridge characterized by having only the girder ends of the floor structure fully connected to the main girder, and other areas being partially connected.