CN202247673U - Lightning preventing highway bridge - Google Patents

Abstract

The utility model provides a lightning preventing highway bridge which has the advantages that materials are saved, plug-in facilities are not arranged and the appearance of the highway bridge is not affected. The lightning preventing highway bridge comprises a bridge pier, a bearing platform and foundation piles, wherein at least one grounding reinforcing steel bar is arranged in the bridge pier; one end of the grounding reinforcing steel bar is connected with a grounding terminal on a pier cap, and the other end of the grounding reinforcing steel bar is connected with a ring joint reinforcing steel bar in the bearing platform; a long communicating grounding reinforcing steel bar is arranged in each foundation pile; and an upper end connecting with the long communicating grounding reinforcing steel bar is connected with the ring joint reinforcing steel bar. For the lightning preventing highway bridge provided by the utility model, a constructional steel bar of the existing structure of the bridge, which does not participate in load bearing, serves the grounding reinforcing steel bar; and therefore, the lightning preventing highway bridge has the advantages that the materials are saved, the plug-in facilities are not arranged and the appearance is not affected.

Description

Lightning Protection Highway Bridge

technical field

The utility model relates to a road bridge, in particular to a lightning protection road bridge.

Background technique

With the continuous growth of people's living standards in our country, highway construction has also entered an era of rapid development. Electrification of high-grade highways is close to universalization. The highway is basically equipped with street lamps, emergency telephones, electrified warning signs, electronic cameras and other equipment. Lightning strikes on bridge structures can easily damage electronic equipment.

At present, high-grade highway bridges adopt a simple method of grounding a single steel bar outside the outer bridge, which can achieve the effect of grounding. This design can play the effect of lightning protection grounding, but it is not beautiful and wastes materials.

Utility model content

The utility model provides a lightning protection highway bridge which saves materials, has no external facilities and does not affect the appearance.

The anti-lightning road bridge for realizing the purpose of the utility model comprises bridge piers, caps and foundation piles. There is at least one grounding steel bar in the bridge piers. The ring-connected steel bar; the foundation pile is provided with a full-length grounded steel bar, and the upper end of the connected full-length grounded steel bar is connected with the ring-connected steel bar.

Two grounding steel bars are arranged inside the bridge pier.

The grounding terminal is a bridge-tunnel type grounding terminal, which is arranged near the side facade of the end point of the pier.

The distance between the grounding terminal and the side facade of the end point of the pier is 10cm.

The beneficial effects of the lightning protection highway bridge of the present utility model are as follows:

The utility model utilizes the structural steel bar of the existing structure of the bridge that does not participate in the load-bearing as the grounding steel bar, does not waste materials, has no external facilities, does not affect the appearance, and is safe and reliable.

Description of drawings

Fig. 1 is the structural representation of the utility model lightning protection road bridge.

Fig. 2 is a left side view of Fig. 1 .

FIG. 3 is a top view of FIG. 1 .

Fig. 4 is an I-I view of Fig. 2 .

Detailed ways

As shown in Figures 1-4, the lightning protection highway bridge of the present invention includes a bridge pier 1, a cap 4 and a foundation pile 5. There are two grounded steel bars 2 inside the bridge pier 1, and one end of the grounded steel bar 2 is connected to the pier The grounding terminal 3 on the cap, the other end is connected to the ring-connected steel bar 6 in the cap 4; a full-length grounded steel bar 7 is arranged in the foundation pile 5, and the upper end of the connected full-length grounded steel bar 7 is connected to the ring-connected Steel bars 6 are connected.

The ground terminal 3 is a bridge-tunnel type ground terminal, which is arranged near the side facade 8 of the end point of the pier.

The distance between the ground terminal 3 and the side facade 8 of the end point of the pier is 10 cm.

The above-mentioned embodiments are only descriptions of preferred implementations of the present utility model, and are not intended to limit the scope of the present utility model. The various deformations and improvements made should fall within the protection scope determined by the claims of the present utility model.

Claims (4)

1. A lightning-proof highway bridge, comprising bridge piers, caps and foundation piles, is characterized in that: at least one grounding steel bar is arranged in the said bridge piers, and one end of said grounding steel bars is connected to the ground terminal on the pier cap, and the other end is connected to The ring-connected steel bar in the cap; a full-length grounded steel bar is arranged in the foundation pile, and the upper end of the connected full-length grounded steel bar is connected with the ring-connected steel bar. 2. The lightning protection highway bridge according to claim 1, characterized in that: two grounding steel bars are arranged inside the pier. 3. The lightning protection highway bridge according to claim 1 or 2, characterized in that: the grounding terminal is a bridge-tunnel type grounding terminal, which is arranged near the side elevation of the end point of the pier. 4. The lightning protection highway bridge according to claim 3, wherein the distance between the ground terminal and the side facade of the end point of the pier is 10 cm.

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