JPS5925925Y2 - Connection structure in prefabricated truss bridges - Google Patents

Description

[Detailed description of the invention] The present invention relates to a connecting structure in a prefabricated truss bridge, and more specifically, in a bridge constructed by sequentially connecting and extending unit bridges of a predetermined length, when connecting each unit bridge, the circle of the bridge is The present invention relates to a connection structure in which hinge connection or rigid connection can be easily selected depending on various conditions such as connection and strength.

Conventional connection structures cannot selectively utilize hinge connections or rigid connections, and as either one of the connection methods is fixedly used, the use and function of the bridge itself is limited, and the bridge itself is not a simple connection structure. It was something that could not be dismissed as a difference.

This project was devised in view of the current situation as described above, and the main point is that unit bridges can be constructed using connecting plates configured so that either hinge connection or rigid connection can be easily selected and used as needed. The main point is that they are connected sequentially.

In detail below, referring to the attached drawings, the connecting plate 1 is provided with bolt holes 2 at one end of the flat plate for attachment to the unit bridge, as shown in Figure 1. A hole 3 for the pin shaft insertion is formed at one end, or bolt holes 2 similar to those described above are formed at both ends of a long plate as shown in Fig. 2. The connecting plate 1 shown in Figure 1 or Figure 2 depending on the connection method of the unit bridge.
Select and use.

For example, in the case of hinge connection using pins 4, as shown in FIG. Position the connecting plates 1 with 3... and each connecting plate 1...
The connecting plates 1 are connected to the unit bridges 5, 5 by passing the bolts 9 through the bolt holes 2 of the unit bridges 5, 5, and then tightening the bolts with nuts. Hole 3...
Both unit bridges 5, 5 are hingedly connected by inserting pins 4 through them.

In this case, the thickness of the intervening plates 7.8 is made thicker and thinner as shown in the figure so that one pair of connecting plates can be fitted between the other pair of connecting plates.

Next, when connecting both unit bridges by a rigid connection, as shown in Figure 4, connect both unit bridges 5, 5 by tightening the bolts and nuts of the connecting plates 1, 1 shown in Figure 2 above. .

In this case, the interposed plates 7 and 8 are naturally made to have the same thickness.

In the above configuration example, both interposed plates 7, 8 and the unit bridge 5,
As a matter of course, bolt holes are provided in advance on both side walls of 5.

In addition, the interposed plates 7 and 8 are preliminarily connected to the connecting plate 1 or the unit bridge 5,
5 (for example, by appropriate means such as welding), or in the case of rigid connection, the intervening plate may be omitted.

In addition, numeral 10 in FIG. 5 indicates a reinforcing cross beam, which is a member for integrally connecting the bridges connected as described above, that is, the side beams A.

The proposed connection structure constructed as described above has the advantage that hinge connection or rigid connection can be easily selected by simply selecting and using two types of connection plates, which can be used depending on the purpose, strength, etc. of the bridge. There is.

[Brief explanation of the drawing]

Figures 1 and 2 are side views showing the connecting plates, Figures 3 and 4 are plan views showing the connected state, and Figure 5 is one side view of the truss bridge.
It is a partial side view which shows an example. 1... Connection plate, 2... Bolt hole, 3.
...hole, 4 ... pin, 5 ... unit bridge, 6 ... side wall, 7 ... insertion plate,
8...Insert plate, 9...Bolt, 10.
...Reinforcement cross beam, A...Side beam.

Claims (1)

[Claims for Utility Model Registration] In a truss bridge constructed by connecting a plurality of unit bridges of a predetermined length, one end has two bolt holes for attachment to the unit bridge.
In addition, a pair of connecting plates 1, 1 with different thicknesses are inserted on both sides of the opposing parts of the unit bridges 5, 5 where the connecting plates 1 with holes 3 at the other ends are to be connected. It is installed through the plates 7 or 8, and a pair of connecting plates attached to either one of the unit bridges can be inserted between a pair of connecting plates attached to the other unit bridge, and the holes 3 of both connecting plates 1 A connection structure in a prefabricated truss bridge formed by inserting pins 4.