CN205188800U - U type damping roof beam device of preventing falling - Google Patents

Abstract

The utility model provides a U-shaped damping anti-drop beam device, which comprises an upper connecting plate and a lower connecting plate arranged parallel to each other, and a U-shaped plate is passed between one end of the upper connecting plate and one end of the lower connecting plate. connected; wherein, the upper connecting plate is connected with the first buried plate embedded at the bottom of the beam body through a plurality of first bolts, and the lower connecting plate is connected with the second embedded plate embedded at the top of the pier through a plurality of second bolts. Buried board connections. The U-shaped damping anti-falling beam device of the utility model can effectively prevent falling beams, and has the advantages of convenient installation and quick replacement.

Description

U-shaped damping anti-drop beam device

technical field

The utility model relates to an anti-falling beam device, in particular to a U-shaped damping anti-falling beam device in the technical field of bridge structures.

Background technique

my country is an earthquake-prone country, especially in the three seismically active regions of North China, Northwest China, and Southwest China. There are examples of beam damage caused by earthquakes. The damage caused by falling beams is bound to cause serious traffic interruption, delay rescue, and cause huge losses. In my country's seismic design code, it is stipulated that in order to prevent vertical and horizontal beams from falling, stoppers, anchor bolts, steel brackets and other anti-falling beam structures are often adopted.

The existing anti-fall beam measures are mainly to set brittle concrete stoppers at a certain distance from the beam body through structural measures, so as to achieve the purpose of controlling the lateral displacement and longitudinal displacement of the beam body within a certain range. The disadvantage of this measure is that the beam body will collide with the block under the action of an earthquake. When a high-intensity earthquake strikes, the brittle concrete block is prone to brittle shear failure and fails, resulting in the failure of the bridge falling beam, and when the brittle concrete block When the concrete block needs to be replaced due to damage and failure, it is not easy to operate.

Therefore, it is necessary to provide a novel anti-drop beam device to overcome the above-mentioned defects.

Utility model content

The purpose of the utility model is to provide a U-shaped damping anti-falling beam device, which can effectively prevent falling beams, and has the advantages of convenient installation and quick replacement.

Above-mentioned purpose of the utility model can adopt following technical scheme to realize:

The utility model provides a U-shaped damping anti-drop beam device, which comprises an upper connecting plate and a lower connecting plate arranged parallel to each other, and one end of the upper connecting plate is connected to one end of the lower connecting plate through a U-shaped plate. connection; wherein, the upper connecting plate is connected with the first buried plate pre-buried at the bottom of the beam body through a plurality of first bolts, and the lower connecting plate is connected with the second buried plate pre-buried at the top of the pier through a plurality of second bolts. board connection.

In a preferred embodiment, the lower connecting plate is provided with a plurality of second round holes matched with the plurality of second bolts.

In a preferred embodiment, the upper connecting plate is provided with a plurality of first circular holes matched with the plurality of first bolts.

In a preferred embodiment, the upper connection plate is provided with a plurality of oblong holes for matching with the plurality of first bolts, and the first bolts are slidably arranged in the oblong holes.

In a preferred embodiment, there are four first circular holes, and the four first circular holes are arranged side by side on the upper connecting plate; there are four second circular holes, and the four first circular holes are The second circular holes are arranged in pairs on the lower connecting plate side by side.

In a preferred embodiment, there are four oblong holes, and the four oblong holes are arranged side by side on the upper connecting plate; there are four second round holes, and the four second round holes Two holes are arranged side by side on the lower connecting plate.

In a preferred embodiment, the width of the upper connecting plate and the width of the lower connecting plate are greater than or equal to the width of the U-shaped plate.

In a preferred embodiment, the upper connecting plate, the lower connecting plate and the U-shaped plate are integrally formed.

The characteristics and advantages of the U-shaped damping and anti-falling beam device of the present utility model are: the U-shaped damping and anti-falling beam device has a simple structure and is convenient for installation and replacement. Under normal operating conditions, the U-shaped damping anti-fall beam device does not participate in the work, and it does not bear any vertical force and horizontal force; under the action of an earthquake, the U-shaped damping anti-fall beam device will be converted into an anti-fall Beam tie rods, because there is a certain buffer space between the upper connecting plate and the lower connecting plate, and the two are connected to each other through a U-shaped plate, so that the upper connecting plate and the lower connecting plate have a certain pressure elasticity, and when the beam body vibrates Under certain circumstances, it can effectively prevent the occurrence of falling beams.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is the front view of the first embodiment of the U-shaped damping anti-falling beam device of the present invention.

Fig. 2 is a side view of the first embodiment of the U-shaped damping anti-fall beam device of the present invention.

Fig. 3 is a front view of the second embodiment of the U-shaped damping anti-fall beam device of the present invention.

Fig. 4 is a side view of the second embodiment of the U-shaped damping anti-fall beam device of the present invention.

Fig. 5 is a schematic diagram of the structure of the U-shaped damping anti-fall beam device connected to the beam body and the bridge pier of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 to 4, the utility model provides a U-shaped damping anti-drop beam device, which includes an upper connecting plate 1 and a lower connecting plate 2 arranged parallel to each other, one end of the upper connecting plate 1 is connected to the One end of the lower connecting plate 2 is connected through a U-shaped plate 3; wherein, the upper connecting plate 1 is connected to the first embedded plate 41 pre-embedded in the bottom of the beam body 4 through a plurality of first bolts, and the lower connecting plate 1 The connecting plate 2 is connected to the second embedded plate 51 pre-embedded on the top of the pier 5 through a plurality of second bolts.

Specifically, the upper connecting plate 1 is generally in the shape of a rectangular plate, and the lower connecting plate 2 is generally in the shape of a rectangular plate. The upper connecting plate 1 and the lower connecting plate 2 are arranged parallel to each other and facing each other up and down.

The U-shaped plate 3 is generally U-shaped, and its two free ends are respectively connected to the upper connecting plate 1 and the lower connecting plate 2, so that the U-shaped damping anti-fall beam device formed is generally U-shaped. In this embodiment, the upper connecting plate 1 , the lower connecting plate 2 and the U-shaped plate 3 are integrally formed, and one mold can be used for production during manufacturing without reassembly.

In one embodiment of the present invention, the width of the upper connecting plate 1 and the width of the lower connecting plate 2 are equal, and both are greater than or equal to the width of the U-shaped plate 3 .

Please refer to Figure 5, the U-shaped damping and anti-falling beam device is installed between the beam body 4 and the pier 5 during specific implementation, and the U-shaped damping and anti-falling beam device can be divided into two types: fixed type and movable type , the fixed U-shaped damping anti-drop beam device is arranged at the fixed end of the beam body 4, and the movable U-shaped damping anti-fall beam device is arranged at the movable end of the beam body 4. Wherein, a first buried plate 41 is connected to the bottom of the beam body 4, and a second buried plate 51 is connected to the top of the pier 5, and the upper connecting plate 1 of the U-shaped damping anti-fall beam device is connected to the bottom of the beam body 4 by a plurality of first bolts On the first buried plate 41 , the lower connecting plate 2 of the U-shaped damping anti-drop beam device is connected to the second buried plate 51 by a plurality of second bolts.

The U-shaped damping anti-falling beam device of the utility model has a simple structure and is convenient for installation and replacement. Under normal operating conditions, the U-shaped damping anti-fall beam device does not participate in the work, and it does not bear any vertical force and horizontal force; under the action of an earthquake, the U-shaped damping anti-fall beam device will be converted into an anti-fall Beam tie rods, because there is a certain buffer space between the upper connecting plate 1 and the lower connecting plate 2, and the two are connected to each other through the U-shaped plate 3, so that the upper connecting plate 1 and the lower connecting plate 2 have a certain deformation elasticity. When the beam body 4 vibrates, it can effectively prevent the beam from falling. The horizontal force of the U-shaped damping and anti-drop beam device can be in any direction, and both the transverse and longitudinal directions of the beam body 4 can be considered.

Further, in one embodiment, as shown in FIG. 1 and FIG. 2 , the upper connecting plate 1 is provided with a plurality of first round holes 11 , and a plurality of first bolts are penetrated in the plurality of first round holes 11 , to achieve the purpose of fixedly connecting the upper connecting plate 1 to the first buried plate 41; the lower connecting plate 2 is provided with a plurality of second round holes 21, and a plurality of second bolts are penetrated in the plurality of second round holes 21, the purpose of fixing the lower connecting plate 2 to the second buried plate 51 is realized. In this embodiment, there are four first round holes 11, and the four first round holes 11 are arranged side by side on the upper connecting plate 1; there are four second round holes 21, and the four second round holes 21 are arranged in pairs. Two are arranged side by side on the lower connecting plate 2. The first circular hole 11 and the second circular hole 21 are vertically opposite to each other. The U-shaped damping and anti-falling beam device in this embodiment is a fixed damping and anti-falling beam device, which can adapt to changes in the vertical displacement of the beam body 4 . Under earthquake action, when the girder body 4 and the pier 5 have relative displacement, the upper connecting plate 1 and the lower connecting plate 2 will experience crawler rolling deformation and damping in the longitudinal direction, while the upper connecting plate 1 and the lower connecting plate 2 can move horizontally The horizontal relative rotation occurs and damping occurs, and the upper connecting plate 1 and the lower connecting plate 2 can vertically displace in parallel and generate damping. The U-shaped damping anti-fall beam device in this embodiment has the function of damping energy consumption.

In another embodiment, as shown in Fig. 3 and Fig. 4, the upper connecting plate 1 is provided with a plurality of oblong holes 12, and a plurality of first bolts are slidably penetrated in the plurality of oblong holes 12, so as to realize the The purpose of this upper connecting plate 1 being connected on the first buried plate 41, the length of the oblong hole 12 is the design displacement of the beam end, which can adapt to the relative displacement of the beam body 4 and the bridge pier 5 when they work normally; the lower connecting plate 2 is provided with A plurality of second round holes 21 , and a plurality of second bolts are penetrated in the plurality of second round holes 21 , so as to achieve the purpose of fixedly connecting the lower connecting plate 2 to the second buried plate 51 . In this embodiment, there are four oblong holes 12, and the four oblong holes 12 are arranged side by side on the upper connecting plate 1; the number of second round holes 21 is four, and the four second round holes 21 are arranged side by side on the bottom. on connection board 2. The oblong hole 12 and the second round hole 21 are vertically opposite to each other. The U-shaped damping anti-fall beam device in this embodiment is a movable damping anti-fall beam device, which can adapt to the vertical and horizontal displacement changes of the beam body 4. Under the action of an earthquake, when the beam body 4 and the bridge pier When the longitudinal relative displacement of 5 exceeds the length of the oblong hole 12, the upper connecting plate 1 and the lower connecting plate 2 will experience crawler rolling deformation and damping in the longitudinal direction, and at the same time, the upper connecting plate 1 and the lower connecting plate 2 can rotate horizontally relative to each other And generate damping, the upper connecting plate 1 and the lower connecting plate 2 can have parallel displacement vertically and generate damping. The U-shaped damping anti-fall beam device in this embodiment has the function of damping energy consumption.

The above are only a few embodiments of the present utility model, and those skilled in the art can make various changes or modifications to the embodiments of the present utility model according to the contents disclosed in the application documents without departing from the spirit and scope of the present utility model.

Claims (8)

1. a U-shaped damping anti-fall girder apparatus, is characterized in that, it comprises upper junction plate arranged in parallel and lower connecting plate, and one end of described upper junction plate is connected by U-board with between one end of described lower connecting plate; Wherein, described upper junction plate is connected with the first buried plate be embedded in bottom beam body by multiple first bolt, and described lower connecting plate is connected with the second buried plate being embedded in pier coping portion by multiple second bolt.

2. U-shaped damping anti-fall girder apparatus as claimed in claim 1, is characterized in that, described lower connecting plate is provided with multiple second circular holes matched with described multiple second bolt.

3. U-shaped damping anti-fall girder apparatus as claimed in claim 2, is characterized in that, described upper junction plate is provided with multiple first circular holes matched with described multiple first bolt.

4. U-shaped damping anti-fall girder apparatus as claimed in claim 2, is characterized in that, described upper junction plate is provided with the multiple slotted holes matched with described multiple first bolt, and described first bolt slides setting in described slotted hole.

5. U-shaped damping anti-fall girder apparatus as claimed in claim 3, is characterized in that, described first circular hole is four, and four described first circular holes are disposed side by side on described upper junction plate between two; Described second circular hole is four, and four described second circular holes are disposed side by side on described lower connecting plate between two.

6. U-shaped damping anti-fall girder apparatus as claimed in claim 4, is characterized in that, described slotted hole is four, and four described slotted holes are disposed side by side on described upper junction plate between two; Described second circular hole is four, and four described second circular holes are disposed side by side on described lower connecting plate between two.

7. U-shaped damping anti-fall girder apparatus as claimed in claim 1, is characterized in that, the width of described upper junction plate and the width of described lower connecting plate are all more than or equal to the width of described U-board.

8. U-shaped damping anti-fall girder apparatus as claimed in claim 1, is characterized in that, described upper junction plate, described lower connecting plate and described U-board are one-body molded.