CN210368598U - Prevent roof beam device and prevent roof beam integrated configuration that falls - Google Patents

Abstract

The utility model relates to a bridge accessory technical field discloses a prevent roof beam device and prevent roof beam integrated configuration that falls, include: the pull cable, the movable end anti-falling structure and the fixed end anti-falling structure; the mobile terminal anti-falling structure comprises: a first and a second shock absorbing assembly; the first damping assembly and the second damping assembly are abutted with each other; the first end of cable passes second damper assembly with first damper assembly connects, the second end of cable with structural connection is prevented falling by the stiff end. The utility model provides a beam falling prevention device sets up first shock-absorbing component and second shock-absorbing component simultaneously, can utilize two shock-absorbing component to absorb the energy that the earthquake produced to the roof beam body when large-scale earthquake takes place, plays the effect of buffering, avoids because vibrations are too big to cause the destruction of whole shock-absorbing component, reduces the replacement cost.

Description

Prevent roof beam device and prevent roof beam integrated configuration that falls

Technical Field

The utility model relates to a bridge accessory technical field, in particular to prevent beam falling device and prevent beam falling integrated configuration.

Background

Earthquake disasters become the biggest harm faced by human society, and are inevitable, and once a large earthquake occurs, the society suffers huge irreparable loss. Since the development, China builds a large number of expressways and bridge systems, and how to ensure the safety of bridge structures becomes a problem of worldwide attention. When an earthquake occurs, how to effectively prevent the displacement of the beam body and avoid the collapse and falling of the bridge becomes an important concern for guaranteeing the life safety of people. A plurality of methods for preventing the bridge from falling off are provided at home and abroad, and the method mainly comprises the following structures at present.

1. The steel bar beam falling prevention device is characterized in that a steel bar beam falling prevention device is shown in figure 1, the steel bar beam falling prevention device is pulled to fall through the tensile strength of a steel bar structure, the connection device cannot realize a buffering function when facing a major earthquake, the steel bar is easy to generate brittle fracture due to the characteristic of rigidity, and the steel bar cannot realize resetting even if the rigidity is too high.

2. Chain formula beam device that falls is prevented, as shown in fig. 2, this kind of structure that falls mainly utilizes the certain flexible portable function of chain, has solved the removal that can realize the certain limit among the daily operation process of case roof beam, and usable chain's pulling force after the crossbeam takes place the displacement in the earthquake in addition holds the roof beam body. However, the scheme is only suitable for beams with careful tonnage, and the chain type anti-falling device has single function, cannot absorb the earthquake, has small movable amount, and cannot meet the requirement of large deformation and resetting of the beam under the condition of a large earthquake.

3. The stay cable type beam falling prevention device is shown in figure 3, the beam falling prevention device has certain buffering performance and can meet the function of deformation and displacement, but the instant impact shock absorption function effect is not obvious, and once a large earthquake occurs, a stay cable is easy to damage, the whole beam falling prevention device needs to be replaced, and the manufacturing cost is higher.

The existing structures have partial problems, so that a buffer type anti-falling device which can reduce the replacement cost and absorb the instant impact energy of a major earthquake is developed, and the buffer type anti-falling device becomes a higher requirement in the modern bridge anti-seismic design.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the technical defects and application requirements, the application provides a beam falling prevention device and a beam falling prevention combined structure, and aims to reduce replacement cost while protecting a beam body.

(II) technical scheme

In order to solve the above problem, the utility model provides a roof beam device prevents falling, include: the pull cable, the movable end anti-falling structure and the fixed end anti-falling structure; the mobile terminal anti-falling structure comprises: a first and a second shock absorbing assembly; the first damping assembly and the second damping assembly are abutted with each other; the first end of cable passes second damper assembly with first damper assembly connects, the second end of cable with structural connection is prevented falling by the stiff end.

Further, the first shock absorbing assembly includes: the first fixing piece, the supporting disc and the elastic piece are connected in sequence; the first end of the inhaul cable penetrates through the elastic piece and the supporting disc in sequence to be connected with the first fixing piece.

Further, the elastic member includes: an elastomer and a protective layer; the protective layer is arranged outside the elastic body in a surrounding mode.

Further, the second shock absorbing assembly includes: the energy-absorbing buffer comprises a wedge block, an elastic buffer ring and an energy-absorbing buffer cylinder; the energy-absorbing buffer cylinder comprises: the first elastic buffer section and the second elastic buffer section are connected with each other; first elasticity buffering section is followed the direction radius of arranging of second elasticity buffering section reduces gradually, the inner circle of first elasticity buffering section is equipped with shape and its correspondence the wedge, the wedge sets up the elastic component with between the elasticity buffering circle, the inner circle of second elasticity buffering section is equipped with the elasticity buffering circle.

Further, still include: the protective cover, the protective cover with an energy-absorbing buffer cylinder interconnect is equipped with in the formation space first damper assembly with second damper assembly.

Further, still include: a first sleeve and a second sleeve; the first sleeve pipe with the second sleeve pipe all sets up on the cable, first sleeve pipe sets up in the second damper assembly, the second sleeve pipe sets up the second end of cable, the cable passes through the second sleeve pipe with structural connection is prevented falling by the stiff end.

Further, the fixed end falling prevention structure includes: a cushion pad and a second fixing member; and the second end of the inhaul cable sequentially penetrates through the cushion pad to be connected with the second fixing piece.

Further, the buffer pad is made of rubber, and a plurality of disc springs are arranged in the buffer pad.

In order to solve the problems, the utility model provides a defogging and spraying mirror surface structure, a beam body and a beam falling prevention device; the beam falling prevention device is fixed on the beam body.

Further, the beam body includes: a first beam and a second beam; the first beam body with all be equipped with pre-buried steel sheet on the second beam body, the removal end prevents falling the structure and passes through pre-buried steel sheet is fixed on the first beam body, the stiff end prevents falling the structure and passes through pre-buried steel sheet is fixed on the second beam body.

(III) advantageous effects

The utility model provides a roof beam device and the roof beam integrated configuration that prevents falling should prevent falling the roof beam device and set up first shock-absorbing component and second shock-absorbing component simultaneously, can utilize two shock-absorbing component to absorb the earthquake to the energy that the roof beam body produced when large-scale earthquake takes place, play the effect of buffering, avoid simultaneously because vibrations too big destruction that causes whole shock-absorbing component reduces the replacement cost. In addition, the anti-falling device can bear the construction of the horizontal force in the axle direction, and the weight and the cost of the traditional bridge are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a steel bar falling beam prevention device provided in the prior art;

fig. 2 is a schematic structural view of a chain type anti-falling beam device provided in the prior art;

fig. 3 is a schematic structural view of a stay cable type girder falling prevention apparatus provided in the prior art;

fig. 4 is a schematic structural diagram of a beam falling prevention device and a beam falling prevention combined structure provided by an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an elastic member according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a wedge block provided in an embodiment of the present invention;

fig. 7 is a schematic structural view of an energy-absorbing buffer cylinder provided in an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an elastic buffer ring according to an embodiment of the present invention;

FIG. 9 is a side view of a cushion provided by an embodiment of the present invention;

fig. 10 is a front view of an elastic buffer ring according to an embodiment of the present invention;

wherein, 1: a cable; 2: a mobile terminal drop prevention structure; 3: the fixed end is provided with a falling-preventing structure; 4: a first sleeve; 5: a second sleeve; 21: a first dampening member; 22: a second dampening member; 23: a protective cover; 31: a cushion pad; 32: a second fixing member; 211: a first fixing member; 212: a support disc; 213: an elastic member; 214: an elastomer; 215: a protective layer; 221: a wedge block; 222: an elastic buffer ring; 223: an energy-absorbing buffer cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The embodiment of the utility model provides a prevent roof beam device that falls, as shown in figure 4, should prevent that the roof beam device that falls includes: inhaul cable 1, removal end anti-falling structure 2 and stiff end anti-falling structure 3. The inhaul cable 1 is a flexible cable body made of steel strands, steel wires or steel wire ropes, and has good tensile strength and extension effect. The mobile terminal drop prevention structure 2 includes: a first damper assembly 21 and a second damper assembly 22. The first damper unit 21 and the second damper unit 22 abut against each other. The first end of cable 1 passes second damper 22 and is connected with first damper 21, and the second end and the stiff end of cable 1 are prevented falling structure 3 and are connected.

When the displacement of the beam body exceeds the deformation displacement during an earthquake, the first damper assembly 21 of the moving-end fall prevention structure 2 starts to function, and starts to compress and deform along with the movement, and at this time, the first damper assembly 21 firstly cancels a part of the moving force. When the first shock absorbing member 21 is compressed to the maximum deformation degree and fails, the second shock absorbing member 22 begins to deform to absorb the impact force applied to the beam body by the earthquake. When the earthquake disappears, the first and second shock absorbing members 21 and 22 can be restored to their original positions again if the deformation amount does not cause the breakage of the shock absorbing members. If the deformation quantity causes the damage of the shock absorption component, after the earthquake disappears, only the corresponding shock absorption component needs to be replaced.

The utility model provides a roof beam device prevents falling, this prevent falling roof beam device sets up first shock-absorbing component and second shock-absorbing component simultaneously, can utilize two shock-absorbing component to absorb the energy of earthquake to the roof beam body production when large-scale earthquake takes place, plays the effect of buffering, avoids simultaneously because vibrations are too big to cause the destruction of whole shock-absorbing component, reduces the replacement cost. In addition, the anti-falling device can bear the construction of the horizontal force in the axle direction, and the weight and the cost of the traditional bridge are reduced.

In an embodiment according to the present invention, as shown in fig. 4, the first shock absorbing assembly 21 includes: a first fixing member 211, a support plate 212 and an elastic member 213 connected in sequence. The first end of the cable 1 passes through the elastic element 213 and the support disc 212 in sequence to be connected with the first fixing element 211. The first fixing member 211 may be a nut, and the elastic member 213 may be an elastic member such as a spring, rubber, or a disc spring. As shown in fig. 5, the elastic body 214 is in a rubber cylinder shape, and the movable amount of the elastic body 214 is not limited, and can be large or small, and a certain elastic force absorption effect can be realized. The elastic member 213 includes: an elastomer 214 and a protective layer 215. The protective layer 215 surrounds the elastomer 214. For example, the outer surface of the elastic body 214 may be coated with a layer of rubber, which effectively improves the corrosion resistance of the elastic body 214 and prolongs the durability thereof for various conditions. The elastic member 213 is in the shape of a rubber cylinder, and the movable amount of the spring is not limited and can be large or small, so that a certain elastic force absorption effect can be realized.

In the present embodiment, as shown in fig. 4, 7 and 8, the second damper assembly 22 includes: a wedge block 221, an elastic buffer ring 222 and an energy absorption buffer cylinder 223. The energy absorbing bumper 223 includes: the first elastic buffer section and the second elastic buffer section are connected with each other. The radius of the first elastic buffer section is gradually reduced along the arrangement direction of the second elastic buffer section, the inner ring of the first elastic buffer section is provided with a wedge block 221 with the shape corresponding to the shape of the inner ring, and the wedge block 221 is arranged between the elastic piece 213 and the elastic buffer ring 222. The inner ring of the second elastic buffer section is provided with an elastic buffer ring 222. As shown in fig. 6, a through hole is provided in the middle of the wedge block 221 so that the cable 1 can pass through the wedge block 221. The combined crush deformation action of the wedge block 221 and the energy-absorbing bumper 223 can achieve the shock-absorbing function. Wherein, still include: the protective cover 23, the protective cover 23 and the energy absorption buffer cylinder 223 are connected with each other, and a first shock absorption assembly 21 and a second shock absorption assembly 22 are arranged in a formed space.

When impact force occurs, the wedge principle of the wedge block 221 generates wedge extrusion force on the energy absorption buffer cylinder 223, so that the energy absorption buffer cylinder 223 generates permanent radial-enlarging plastic deformation, the earthquake kinetic energy is converted into internal energy of physical deformation of the control tube, earthquake force is absorbed, and the impact force of the earthquake is reduced and transmitted to the bridge body structure. The elastic buffer ring 222 is made of high damping material, and when the earthquake impact force occurs, the instantaneous impact force of the earthquake can be effectively absorbed and buffered by using the characteristics of the high damping material and the rubber elasticity, so that the earthquake damage degree is effectively reduced. When the energy absorbing buffer cylinder 223 is deformed to a certain extent, the pressure of the wedge block 221 is also transmitted to the elastic buffer ring 222, so that it is elastically deformed. The high-damping-molecule material can well convert external load force into internal friction of rubber damping molecules in the earthquake process through the viscoelastic property of the high-damping-molecule material, realize the conversion of kinetic energy into thermal energy, and can assist in absorbing residual earthquake force, thereby greatly reducing the impact destructive force of the earthquake and protecting the falling of a beam body (such as a box beam).

Specifically, when the displacement of the beam body exceeds the deformation displacement during an earthquake, the first damper component 21 of the moving-end fall-prevention structure 2 starts to function, and the elastic member 213 starts to compressively deform along with the movement, and at this time, the first damper component 21 first cancels a part of the moving force. When the elastic member 213 is compressed to the maximum deformation degree and fails, the second shock absorbing assembly 22 begins to deform to absorb the impact force applied to the beam body by the earthquake. The support plate 212 presses the wedge block 221 to start to extrude the elastic buffer ring 222 to enable the elastic buffer ring to generate elastic deformation, and meanwhile, the energy-absorbing buffer cylinder 223 is extruded by the wedge extrusion force of the wedge block 221, so that the energy-absorbing buffer cylinder 223 generates outward expansion deformation to absorb impact force of an earthquake on a box girder. When the earthquake disappears, the elastic buffer ring 222 can be restored to the original position again by using the elastic function. When the earthquake disappears, the first and second shock absorbing members 21 and 22 can be restored to their original positions again if the deformation amount does not cause the breakage of the shock absorbing members. If the deformation quantity causes the damage of the shock absorption component, after the earthquake disappears, only the corresponding shock absorption component needs to be replaced.

In an embodiment according to the present invention, as shown in fig. 4, the method further includes: a first sleeve 4 and a second sleeve 5. First sleeve pipe 4 and second sleeve pipe 5 all set up on cable 1, and first sleeve pipe 4 sets up in second damper assembly 22, and second sleeve pipe 5 sets up the second end at cable 1, and cable 1 is connected with stiff end anti-falling structure 3 through second sleeve pipe 5. The first sleeve 4 is used to prevent the stay 1 from being separated from the first sleeve 4 during a shock. The second sleeve 5 serves as an intermediate structure for connecting the cable 1 with the fixed-end anti-drop structure 3.

As shown in fig. 9 and 10, the fixed end drop preventing structure 3 includes: a cushion 31 and a second mount 32. The second fixing member 32 may be a nut. The second end of the cable 1 is connected with the second fixing member 32 through the cushion 31 in turn. The cushion pad 31 is made of rubber by adopting a coupling manufacturing process of combining rubber and disc springs, namely, the plurality of disc springs are arranged in the cushion pad 31, so that a certain buffering and anti-damage effect can be generated, and a certain impact force can be effectively resisted and absorbed.

To sum up, the utility model provides a roof beam device that prevents falling can utilize two shock attenuation modules to absorb the energy that the earthquake produced to the roof beam body when large-scale earthquake takes place, plays the effect of buffering, avoids simultaneously because vibrations are too big to cause the destruction of whole shock attenuation modules, reduces the replacement cost. In addition, the anti-falling device can bear the construction of the horizontal force in the axle direction, and the weight and the cost of the traditional bridge are reduced.

The embodiment of the utility model provides a prevent roof beam integrated configuration that falls, as shown in figure 4, prevent that roof beam integrated configuration that falls includes: a beam body and a beam falling prevention device. The beam falling prevention device is fixed on a beam body, and the beam body is a box beam. This prevent roof beam device that falls includes: inhaul cable 1, removal end anti-falling structure 2 and stiff end anti-falling structure 3. The inhaul cable 1 is a flexible cable body made of steel strands, steel wires or steel wire ropes, and has good tensile strength and extension effect. The mobile terminal drop prevention structure 2 includes: a first damper assembly 21 and a second damper assembly 22. The first damper unit 21 and the second damper unit 22 abut against each other. The first end of cable 1 passes second damper 22 and is connected with first damper 21, and the second end and the stiff end of cable 1 are prevented falling structure 3 and are connected. The inhaul cable 1 is used for connecting structures at two ends and transmitting the structures to the beam body. For a more specific structure of the beam falling prevention device, please refer to the other embodiments, which are not described herein.

Wherein, the roof beam body includes: a first beam and a second beam. All be equipped with pre-buried steel sheet on first roof beam body and the second roof beam body, remove the end and prevent falling structure 2 and fix on first roof beam body through pre-buried steel sheet, the stiff end prevents falling structure 3 and fixes on the second roof beam body through pre-buried steel sheet.

To sum up, the utility model provides a prevent roof beam integrated configuration that falls can utilize two shock attenuation modules to absorb the earthquake and to the energy that the roof beam body produced when large-scale earthquake takes place, plays the effect of buffering, avoids simultaneously because vibrations too big destruction that causes whole shock attenuation modules reduces the replacement cost. In addition, the anti-falling device can bear the construction of the horizontal force in the axle direction, and the weight and the cost of the traditional bridge are reduced.

It can be understood that the utility model provides a prevent roof beam device that falls still can combine other class roof beam body structures to take precautions against earthquakes.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. An anti-drop beam device, comprising:

the pull cable, the movable end anti-falling structure and the fixed end anti-falling structure; the mobile terminal anti-falling structure comprises: a first and a second shock absorbing assembly; the first damping assembly and the second damping assembly are abutted with each other; the first end of cable passes second damper assembly with first damper assembly connects, the second end of cable with structural connection is prevented falling by the stiff end.

2. The fall arrest device according to claim 1, wherein the first shock assembly comprises:

the first fixing piece, the supporting disc and the elastic piece are connected in sequence; the first end of the inhaul cable penetrates through the elastic piece and the supporting disc in sequence to be connected with the first fixing piece.

3. The beam falling prevention device as claimed in claim 2, wherein the elastic member comprises: an elastomer and a protective layer; the protective layer is arranged outside the elastic body in a surrounding mode.

4. The fall arrest device according to claim 2, wherein the second shock assembly comprises:

the energy-absorbing buffer comprises a wedge block, an elastic buffer ring and an energy-absorbing buffer cylinder;

the energy-absorbing buffer cylinder comprises: the first elastic buffer section and the second elastic buffer section are connected with each other; first elasticity buffering section is followed the direction radius of arranging of second elasticity buffering section reduces gradually, the inner circle of first elasticity buffering section is equipped with shape and its correspondence the wedge, the wedge sets up the elastic component with between the elasticity buffering circle, the inner circle of second elasticity buffering section is equipped with the elasticity buffering circle.

5. The beam falling prevention device as claimed in claim 4, further comprising:

the protective cover, the protective cover with an energy-absorbing buffer cylinder interconnect is equipped with in the formation space first damper assembly with second damper assembly.

6. The beam falling prevention device as claimed in claim 1, further comprising:

a first sleeve and a second sleeve; the first sleeve pipe with the second sleeve pipe all sets up on the cable, first sleeve pipe sets up in the second damper assembly, the second sleeve pipe sets up the second end of cable, the cable passes through the second sleeve pipe with structural connection is prevented falling by the stiff end.

7. The fall arrest device according to claim 1, wherein the fixed end fall arrest structure comprises: a cushion pad and a second fixing member; and the second end of the inhaul cable sequentially penetrates through the cushion pad to be connected with the second fixing piece.

8. The fall arrest device according to claim 7, wherein the bumper pad is made of rubber and a plurality of disc springs are provided in the bumper pad.

9. The utility model provides an anti-falling beam composite structure which characterized in that includes: a beam and the fall arrest device of any one of claims 1 to 8; the beam falling prevention device is fixed on the beam body.

10. A drop beam combination as claimed in claim 9, wherein the beam body comprises:

a first beam and a second beam; the first beam body with all be equipped with pre-buried steel sheet on the second beam body, the removal end prevents falling the structure and passes through pre-buried steel sheet is fixed on the first beam body, the stiff end prevents falling the structure and passes through pre-buried steel sheet is fixed on the second beam body.

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