A wind-resistant open hole for bridge and tunnel

Abstract

The present invention relates to the field of bridge tunnel open hole engineering, and specifically discloses a wind-resistant open hole for bridge tunnels, including an inner frame, an outer frame and a wind-resistant tarpaulin; the inner frame includes two lateral frames and a first telescopic frame, the lateral frame includes several sections of first steel bars, the first steel bars are rotatably connected and can be automatically reset, the lower part of the lateral frame is vertical, the middle part is bent, and the upper part is horizontal, the upper parts of the two lateral frames are respectively telescopically arranged at the two ends of the first telescopic frame, several inner frames are arranged in a row and the wind-resistant tarpaulin is fixedly arranged on the outside of the inner frame; the outer frame includes two fixed frames and a second telescopic frame, the shape of the fixed frames is similar to that of the lateral frames, the upper ends of the two fixed frames are respectively telescopically arranged at the two ends of the second telescopic frame, and the tops of several outer frames are detachably provided with top plates. The purpose of the present invention is to solve the technical problem of how to prevent the influence of crosswind on vehicles.

Description

Technical Field

[0001] The invention relates to the field of bridge tunnel open hole engineering, and specifically discloses a wind-resistant open hole for a bridge tunnel. Background Art

[0002] Crosswinds occur in some windy areas or in wide areas. Crosswinds have a greater impact on vans, large buses, canvas vans and other box-shaped vehicles, because these vehicles have a higher overall center of gravity and a larger lateral area; light cars are also easily affected by crosswinds. When a car exits a tunnel or drives towards a bridge or high embankment where wind blows through, it is suddenly hit by strong crosswinds. Due to the discontinuous changes in wind speed and direction, the vehicle will instantly deviate from the original driving path, and even worse, the vehicle may roll over or crash, seriously affecting traffic safety.

[0003] In the prior art, structures such as enclosures are generally set up on bridges, tunnel entrances or roads. The enclosure structure is low-cost and easy to install, but it still has no blocking effect on some strong crosswinds. Therefore, a large-scale structure with low cost and easy installation is needed, similar to the open hole at the tunnel entrance, which can effectively prevent the impact of crosswinds on moving vehicles. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a wind-resistant open tunnel for a bridge tunnel to solve the technical problem of how to prevent the influence of crosswind on vehicles.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A wind-resistant open tunnel for a bridge tunnel includes an inner frame, an outer frame and a wind-resistant tarpaulin; the inner frame includes two lateral frames and a first telescopic frame, the lateral frames include several sections of first steel bars, the first steel bars are rotatably connected and can be automatically reset, the lower part of the lateral frame is vertical, the middle part is bent, and the upper part is horizontal, the upper parts of the two lateral frames are telescopically arranged at the two ends of the first telescopic frame, several inner frames are arranged in rows and the wind-resistant tarpaulin is fixedly arranged on the outside of the inner frame; the outer frame includes two fixed frames and a second telescopic frame, the shape of the fixed frames is similar to that of the lateral frames, the upper ends of the two fixed frames are telescopically arranged at the two ends of the second telescopic frame, and the tops of several outer frames are detachably provided with top plates. In this solution, the lateral frames of the inner frame are connected by the first telescopic frame, so the two lateral frames can be retracted together for easy transportation, and they only need to be gradually unfolded during installation, which is also very convenient; similarly, the fixed frames of the outer frame are also connected by the second telescopic frame, and the two fixed frames can also be retracted for transportation. The inner frame is provided with a windproof tarpaulin, which can play a role in preventing wind. The lateral frame is formed by a plurality of first steel bars connected by rotation. When the windproof tarpaulin is subjected to force, it will exert pressure on the first steel bars, which can be deformed to consume the pressure on the windproof tarpaulin. When there is no wind, the first steel bars can automatically reset. After the top plate is installed on the outer frame, it can play a role in preventing mudslides and landslides, and prevent mudslides, falling rocks, etc. from damaging the windproof tarpaulin.

[0007] Optionally, the first steel bar is provided with a plurality of internal threaded covers and through holes, the internal threaded covers are connected to the through holes and are located on the inner side of the first steel bar, the fixed frame is provided with external threaded screws, the external threaded screws can be threadedly connected with the internal threaded covers, the interior of the external threaded screws is hollow and a rotation groove is provided on the inner wall, the fixed frame is provided with an elastic member, the elastic member is provided with a rotating sheet, and the rotating sheet is rotatably arranged in the rotating groove. This scheme mainly solves how to fix the wind-resistant tarpaulin on the external frame without destroying the structure of the wind-resistant tarpaulin itself. In this scheme, an internal threaded cover and an external threaded screw are provided, the two can be threadedly connected, and when the external threaded screw is screwed into the internal threaded cover, the wind-resistant tarpaulin can also be screwed into it, which can play a role in fixing the wind-resistant tarpaulin. However, when processing the threads of the external threaded screw and the internal threaded cover, a certain gap needs to be left to be sufficient to insert the tarpaulin. At the same time, the external threaded screw is connected to the fixed frame through an elastic part, so when the fixed frame or the first steel bar moves or deforms, the elastic part can consume energy and reset, avoiding excessive relative displacement between the two, and also avoiding breakage and damage of the fixed frame and the first steel bar.

[0008] Optionally, the exoskeleton further includes a C-shaped reinforcement plate, which is sleeved on the top of the exoskeleton, and the two ends of the reinforcement plate are respectively fixedly connected to the tops of the two fixed frames. The top of the fixed frame itself is retractable, but the second telescopic frame must have a hollow structure in order to achieve the telescopic function, so the strength of the second telescopic frame is not enough to prevent mudslides and falling rocks. In this solution, the reinforcement plate is installed on the exoskeleton to reinforce the exoskeleton. At the same time, the reinforcement plate is set in a C shape to facilitate wrapping the upper ends of the second telescopic frame and the fixed frame.

[0009] Optionally, the upper and lower ends of the reinforcing plate are both provided with vibration absorbers, the vibration absorber at the upper end is connected to the top plate, and the vibration absorber at the lower end is connected to the inner frame. With this solution, the reinforcing plate can play a role in vibration reduction and energy consumption.

[0010] Optionally, the top plate is arched. This solution makes it easier for fallen rocks, soil, etc. to slide down from both sides.

[0011] Optionally, the elastic member includes a damping spring and a limiting rod, the limiting rod includes a first rod portion and a second rod portion, the first rod portion is telescopically connected to the second rod portion, the first rod portion and the second rod portion are respectively connected to the rotating plate and the external threaded rotating column, the two ends of the damping spring are respectively connected to the rotating plate and the external threaded rotating column, and the damping spring is jacketed in the limiting rod. With this solution, the fixing method of the inner frame and the outer frame is relatively simple, especially for the inner frame. The wind-resistant tarpaulin exerts a large force on the inner frame under the action of wind. The limiting rod in this solution can limit the inner frame to move back and forth relative to the outer frame but not left and right, and the back and forth movement is also limited by a distance. At the same time, the spring can also play the same role.

[0012] Optionally, several concrete bases are provided on both sides of the bridge or tunnel, and two slots and several prefabricated screw holes are provided on the concrete base. The concrete base is preferably cast in situ, which is more stable, or prefabricated, which has a short construction period and is easy to install.

[0013] Optionally, the first steel bar includes a plate-shaped portion and a strip-shaped portion, and the strip-shaped portion is integrally formed and arranged inside the plate-shaped portion. With this solution, the width of the first steel bar is large enough, and the thickness of the key part is also thick enough.

[0014] The working principle and beneficial effects of this solution are:

[0015] In this scheme, an inner frame and an outer frame are set up with a skeleton structure. A wind-resistant tarpaulin is set on the inner frame, and the first steel bar of the main structure of the inner frame is elastically hinged. The lateral frame composed of several first steel bars can be deformed to adapt to the pressure applied by the wind-resistant tarpaulin, play an energy-consuming role, and can also be reset. The structure of the entire inner frame is simple and light, and it is very quick to install. Since its upper part is retractable, it is also easy to transport to various places. The function of the outer frame is to prevent debris flow, landslide, etc. from damaging the wind-resistant tarpaulin and the inner frame, so the outer frame is set on the outer circle of the inner frame, which can just cover the inner frame. At the same time, the elastic parts between the inner frame and the outer frame can limit the movement range of the inner frame to prevent it from being severely deformed due to excessive wind force. It can also transfer the impact force of the outer frame to the inner frame in the event of debris flow and falling rocks. The inner frame can play a certain role in energy consumption and vibration reduction, and the two complement each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment;

[0017] Figure 2 for Figure 1 Schematic diagram of part of the structure when no wind-resistant tarpaulin is provided;

[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 It is a longitudinal cross-sectional view of the partial structure of the elastic member, the internal thread cover and the external thread rotation;

[0020] Figure 5 Schematic diagram of the structure of the exoskeleton and the endoskeleton.

[0021] The markings in the accompanying drawings are as follows: inner frame 1, outer frame 2, wind-resistant tarpaulin 3, concrete base 4, lateral frame 101, first telescopic frame 102, fixed frame 201, second telescopic frame 202, reinforcing plate 203, shock absorber 204, arch 205, plate-like portion 103, strip-like portion 104, internal thread cover 105, external threaded screw column 106, elastic member 107, first steel bar 108, spring sheet 109, through hole 110, first steel bar 111, shock-absorbing spring 1071, first rod portion 1072, second rod portion 1073, rotating sheet 1074. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] Example

[0024] A wind-resistant open tunnel for bridges and tunnels, such as Figure 1-Figure 5As shown, it includes an inner frame 1, an outer frame 2, a wind-resistant tarpaulin 3 and a concrete base 4.

[0025] The concrete base 4 is disposed on both sides of the bridge or tunnel entrance by cast-in-place or prefabrication. The concrete base 4 is provided with two slots and a plurality of prefabricated screw holes.

[0026] The inner frame 1 includes two lateral frames 101 and a first telescopic frame 102. The lateral frame 101 includes a plurality of first steel bars 108. The first steel bars 108 include a plate-like portion 103 and a strip-like portion 104. The strip-like portion 104 is integrally formed and arranged on the inner side of the plate-like portion 103, and the length of the strip-like portion 104 is smaller than the plate-like portion 103. The first steel bars 108 are rotatably connected and can be automatically reset. The rotatable connection method is: the plate-like portions 103 on the upper and lower adjacent first steel bars 108 are hinged; the automatic reset setting method is: a spring sheet 109 is arranged between the strip-like portions 104 on the upper and lower adjacent first steel bars 108, and the two ends of the spring sheet 109 are respectively fixedly connected to the two strip-like portions 104. The natural state of the lateral frame 101 is: the lower part is vertical, the middle part is bent, and the upper part is horizontal, so the first steel bars 108 at the lower part are vertical, the first steel bars 108 at the middle part have a certain angle in the initial state, and the first steel bars 108 at the upper part are horizontal. The upper part of the two lateral frames 101, i.e., the upper first steel bar 108, is telescopically arranged at the two ends of the first telescopic frame 102, respectively. A plurality of inner frames 1 are arranged in a row and the wind-resistant tarpaulin 3 is fixedly arranged outside the inner frame 1. The wind-resistant tarpaulin 3 is fixedly arranged in the following manner: a plurality of internal thread covers 105 and through holes 110 are fixedly arranged at the inner side end of the strip-shaped portion 104 of the first steel bar 108, the internal thread covers 105 are connected with the through holes 110 and are located on the inner side of the first steel bar 108, an external threaded screw 106 is arranged on the outer frame 2, the external threaded screw 106 can be threadedly connected with the internal thread covers 105, the inner part of the external threaded screw 106 is hollow and a rotation groove is arranged on its inner wall, an elastic member 107 is arranged on the outer frame 2, a rotation sheet 1074 is arranged on the elastic member 107, and the rotation sheet 1074 is rotatably arranged in the rotation groove. The elastic member 107 includes a damping spring 1071 and a limiting rod, the limiting rod includes a first rod portion 1072 and a second rod portion 1073, the first rod portion 1072 is telescopically connected to the second rod portion 1073, the first rod portion 1072 and the second rod portion 1073 are respectively connected to the rotating plate 1074 and the external threaded screw column 106, the two ends of the damping spring 1071 are respectively connected to the rotating plate 1074 and the external threaded screw column 106, and the damping spring 1071 is sheathed in the limiting rod.

[0027] The outer frame 2 includes two fixed frames 201 and a second telescopic frame 202. The shape of the fixed frame 201 is similar to that of the lateral frame 101. The upper ends of the two fixed frames 201 are telescopically arranged at the two ends of the second telescopic frame 202. The tops of the outer frames 2 are detachably provided with arched top plates 205 by bolts. The fixed frame 201 is connected to the external threaded screw 106, and the fixed frame 201 is also connected to the elastic member 107.

[0028] The outer frame 2 also includes a C-shaped reinforcement plate 203, which is sleeved on the top of the outer frame 2, and the two ends of the reinforcement plate 203 are respectively fixedly connected to the tops of the two fixed frames 201. Shock absorbers 204 are provided at the upper and lower ends of the reinforcement plate 203, the upper end of the shock absorber 204 is connected to the top plate, and the lower end of the shock absorber 204 is connected to the inner frame 1.

[0029] When implementing:

[0030] During transportation, the top of the lateral frame 101 of the inner frame 1 is extended into the first telescopic frame 102. At this time, the space occupied by the entire inner frame 1 is reduced, which is convenient for transportation. The outer frame 2 is also retracted in the same way, and the reinforcing plate 203 and the top plate can be transported separately. The spring sheet 109 can be set between the two first steel bars 108 by bolting. The spring sheet 109 does not need to be installed during transportation, and the first steel bars 108 can be folded, which again reduces the space occupied by the inner frame 1 and is more convenient for transportation.

[0031] Installation process: first fix the concrete base 4 on both sides of the bridge or tunnel entrance, then unfold the inner frame 1, pull the lateral frame 101 out from both sides of the first telescopic frame 102, insert the bottom of the lateral frame 101 into the slot fixed to the concrete base 4, and then spread the wind-resistant tarpaulin 3 on the outside of the inner frame 1; then install the outer frame 2, insert the bottom of the fixed frame 201 into the slot of the concrete base 4, and then screw the external threaded screw 106 on the fixed frame 201 into the through hole 110 of the first steel bar 108 and the internal threaded cover 105, at this time, the wind-resistant tarpaulin 3 is squeezed into the external threaded screw 106 and the internal threaded cover 105, and because the external threaded screw 106 and the internal threaded cover 105 are connected and fixed, the wind-resistant tarpaulin 3 is fixed on the outside of the inner frame 1. Then install the reinforcing plate 203 and the top plate, and finally install the shock absorber 204.

[0032] In windy weather, when the wind blows on the wind-resistant tarpaulin 3, the wind-resistant tarpaulin 3 can cause the lateral fixation to deform to a certain extent. The first steel bar 108 overcomes the deflection of the spring sheet 109, and the first steel bar 108 at the top extends into the first telescopic frame 102. The deformation and movement of the first steel bar 108 can consume the force of the wind on the wind-resistant tarpaulin 3. At the same time, when the first steel bar 108 is close to the outer frame 2, the vibration reduction spring 1071 can also play a role in vibration reduction and energy consumption. The vibration reduction spring 1071 and the limit rod can limit the maximum movement distance of the first steel bar 108, so that the first steel bar 108 will not be separated, and the wind resistance of the wind-resistant tarpaulin 3 is guaranteed to the maximum extent. The top plate can play a role in preventing falling rocks, mud and rock flows, etc.

[0033] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the present invention.

Claims

1. A wind-resistant open tunnel for a bridge tunnel, characterized by: It includes an inner frame, an outer frame and a wind-resistant tarpaulin; the inner frame includes two lateral frames and a first telescopic frame, the lateral frame includes several sections of first steel bars, the first steel bars are rotatably connected and can be automatically reset, the lower part of the lateral frame is vertical, the middle part is bent, and the upper part is horizontal, the upper parts of the two lateral frames are telescopically arranged at the two ends of the first telescopic frame respectively, several inner frames are arranged in a row and the wind-resistant tarpaulin is fixedly arranged on the outside of the inner frame; the outer frame includes two fixed frames and a second telescopic frame, the shape of the fixed frames is similar to that of the lateral frames, the upper ends of the two fixed frames are telescopically arranged at the two ends of the second telescopic frame respectively, and the tops of several outer frames are detachably provided with top plates; the first steel bar includes a plate-like part and a strip-like part, the strip-like part is integrally formed and arranged on the inner side of the plate-like part, and the length of the strip-like part is smaller than the plate-like part, the first steel bars are rotatably connected and can be automatically reset, and the rotatable connection method is: the plate-like parts on the upper and lower adjacent first steel bars are hinged; the automatic reset setting method is: a spring sheet is arranged between the strip parts on the upper and lower adjacent first steel bars, and the two ends of the spring sheet are respectively connected to the two The strip-shaped parts are fixedly connected; the first steel bar is provided with a plurality of internal thread covers and through holes, the internal thread covers are connected with the through holes and are located on the inner side of the first steel bar, the fixed frame is provided with an external thread screw, the external thread screw can be threadedly connected with the internal thread cover, the external thread screw is hollow inside and a rotation groove is provided on its inner wall, the fixed frame is provided with an elastic member, the elastic member is provided with a rotating sheet, and the rotating sheet is rotatably arranged in the rotating groove; the outer frame also includes a C-shaped reinforcing plate, the reinforcing plate is sleeved on the top of the outer frame, and the two ends of the reinforcing plate are The ends are respectively fixedly connected to the tops of the two fixed frames, and shock absorbers are arranged on the upper and lower ends of the reinforcing plate, the shock absorber at the upper end is connected to the top plate, and the shock absorber at the lower end is connected to the inner frame; the top plate is arched; the elastic member includes a shock absorbing spring and a limiting rod, and the limiting rod includes a first rod portion and a second rod portion, the first rod portion and the second rod portion are telescopically connected, the first rod portion and the second rod portion are respectively connected to the rotating plate and the externally threaded rotary column, the two ends of the shock absorbing spring are respectively connected to the rotating plate and the externally threaded rotary column, and the shock absorbing spring is sheathed in the limiting rod.

2. The wind-resistant open tunnel for a bridge tunnel according to claim 1, characterized in that: It also includes a plurality of concrete bases arranged on both sides of the bridge or the tunnel, wherein the concrete bases are provided with two slots and a plurality of prefabricated screw holes.

3. The wind-resistant open tunnel for a bridge tunnel according to claim 2 is characterized in that: The first steel bar includes a plate-shaped portion and a strip-shaped portion, and the strip-shaped portion is integrally formed and arranged on the inner side of the plate-shaped portion.

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