Unpowered wind-resistant barrier for bridge engineering and installation method of wind-resistant barrier

Abstract

The present invention discloses an unpowered wind-resistant barrier for bridge engineering, comprising two fixed end plates parallel to each other, a plurality of elastic woven parts connected between the two fixed end plates, and a plurality of windward force transmission parts parallel to each other, each windward force transmission part vertically passing through the plurality of woven parts; the effect of crosswind on the vibration of the bridge structure can be reduced; the whole process of dynamic energy consumption of the wind-resistant barrier does not require the participation of electricity, and energy conservation is achieved; the wind-resistant barrier of the present invention also has the advantages of convenient industrial production, manufacturing and installation, and if any parts are damaged, they can be directly judged by naked eye and are easy to replace.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind resistance of bridge structures, and in particular relates to an unpowered wind-resistant barrier used in bridge engineering, and also relates to an installation method of the unpowered wind-resistant barrier used in bridge engineering. Background Art

[0002] Bridge structures are significantly affected by wind loads. Wind barriers are wind-resistant components used to eliminate or weaken the impact of crosswinds on vehicles traveling on the bridge. Currently, wind barriers mainly use metal plates or porous metal plates to achieve wind resistance. This type of wind barrier can indeed reduce the impact of crosswinds on vehicles on the upper part of the bridge deck, but it cannot eliminate or weaken the vibration effect of crosswinds on the bridge structure itself. However, bridge structures are prone to adverse phenomena such as vortex shocks under the coupling of crosswinds and the bridge's own vibrations, thereby endangering the safety performance of the bridge structure itself. Summary of the invention

[0003] The purpose of the present invention is to provide a non-powered wind-resistant barrier for bridge engineering, which can reduce the vibration effect of crosswind on the bridge structure.

[0004] Another object of the present invention is to provide a method for installing a non-powered wind-resistant barrier for bridge engineering.

[0005] The technical solution adopted by the present invention is an unpowered wind-resistant barrier for bridge engineering, comprising two fixed end plates parallel to each other, a plurality of elastic woven parts connected between the two fixed end plates, and a plurality of windward force transmission parts parallel to each other, each windward force transmission part vertically passing through the plurality of woven parts.

[0006] The present invention is also characterized in that:

[0007] A plurality of groups of mutually parallel groove-shaped members are connected between the two fixed end plates, each braided portion is located between each group of groove-shaped members, and the braided portions connect the groove-shaped members.

[0008] Each woven part includes a strip-shaped active friction strip and a serrated passive friction strip. The active friction strips are interlaced and connected to the passive friction strips to form a woven structure. The two ends of the active friction strips are respectively connected and fixed on the end plates, and the two ends of the passive friction strips are respectively connected to the slots of the slot-shaped parts. The active friction strips are connected to the windward force transmission part.

[0009] The woven part includes a strip-shaped active friction strip and multiple strip-shaped passive friction strips. Each passive friction strip is arranged in parallel. The active friction strip contacts and connects with multiple passive friction strips alternately from top to bottom to form a woven structure. Both ends of each passive friction strip are respectively connected to the groove-shaped parts, and the active friction strip is connected to the windward force transmission part.

[0010] Each windward force transmission part comprises a light steel cable, the light steel cable passes through the braided part, a rotating sleeve is flexibly sleeved on the light steel cable between two adjacent braided parts, and a fan blade is fixedly connected to each rotating sleeve.

[0011] The groove-shaped part is connected to one end of the elastic connection part, and the other end of the elastic connection part is connected to the windward force transmission part.

[0012] The elastic connection part comprises a connecting rope loop, which is connected to the spring part and the ring buckle in sequence. The connecting rope loop is connected to the windward force transmission part at the connection with the braided part, and the ring buckle is connected to the groove part.

[0013] A bottom plate is also connected between the two fixed end plates.

[0014] Another technical solution adopted by the present invention is a method for installing a non-powered wind-resistant barrier for a bridge project, which is specifically implemented according to the following steps:

[0015] Step 1: prefabricate the windward force transmission part and the weaving part in the factory;

[0016] Step 2: Install the base plate at a predetermined position on the bridge;

[0017] Step 3, installing the fixed end plate at a predetermined position on the base plate;

[0018] Step 4, connecting a plurality of braided portions between the fixed end plates;

[0019] Step 5: Vertically connect the windward force transmission part to the braided part.

[0020] Step 2 also includes connecting multiple groups of parallel grooved members between two fixed end plates, in step 4 the braided portion is located between each group of grooved members, and step 5 also includes connecting an elastic connecting portion between the windward force transmission portion and the grooved member.

[0021] The beneficial effects of the present invention are:

[0022] The non-powered wind-proof barrier used in bridge engineering can reduce the vibration effect of crosswind on bridge structure; the whole process of dynamic energy consumption of the wind-proof barrier does not require electricity, which saves energy; the wind-proof barrier of the present invention also has the advantages of convenient industrial production and installation, and if any parts are damaged, they can be directly observed and judged by naked eyes and are easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the non-powered wind-resistant barrier used in bridge engineering according to the present invention;

[0024] Figure 2 It is a front view of the non-powered wind-resistant barrier used in bridge engineering of the present invention;

[0025] Figure 3It is a top view of the non-powered wind-resistant barrier used in bridge engineering of the present invention;

[0026] Figure 4 is a schematic diagram of the connection between the active friction strip and the passive friction strip in the present invention;

[0027] Figure 5 is a schematic diagram of the connection between the grooved member and the passive friction strip in the present invention;

[0028] Figure 6 is a schematic diagram of another connection scheme of the active friction strip and the passive friction strip in the present invention;

[0029] Figure 7 It is a schematic diagram of another connection scheme of the grooved member and the passive friction strip in the present invention;

[0030] Figure 8 It is a structural schematic diagram of the card slot member in the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the windward force transmission part of the present invention;

[0032] Fig.10 yes Figure 1 Schematic diagram of the structure of node A;

[0033] Fig.11 It is a structural schematic diagram of the elastic connecting part in the present invention.

[0034] In the figure, 1, fixed end plate; 2, bottom plate; 3, windward force transmission part; 31, lightweight steel cable; 32, rotating sleeve; 33, fan blade; 4, braided part; 41, active friction strip; 411, slot part; 4111, bottom fixed plate; 4112, clamping plate; 4113, first fixing screw; 42, passive friction strip; 5, slot part; 51, second fixing screw; 6, elastic connecting part; 61, spring part; 62, connecting rope loop; 63, fixed pad; 64, buckle. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The present invention is used for non-powered wind-resistant barriers in bridge engineering, such as Figure 1 , Figure 2 class Figure 3 As shown, it includes two parallel fixed end plates 1, a plurality of elastic woven parts 4 are connected between the two fixed end plates 1, and also includes a plurality of parallel windward force transmission parts 3, each windward force transmission part 3 vertically passes through a plurality of woven parts 4; the windward force transmission part 3 can directly block the wind force, and transmit the wind force to the elastic woven part 4, so as to realize energy dissipation through the elastic action of the woven part 4.

[0037] Multiple groups of parallel groove parts 5 are fixedly connected between the two fixed end plates 1 through the end plates. Each group of groove parts 5 is two rod-shaped structures with the same height and parallel to each other. Each braided part 4 is located between the two rod-shaped structures, which can limit the deformation of the braided part.

[0038] like Figure 4 As shown, each braided portion 4 includes a strip-shaped active friction strip 41 and a serrated passive friction strip 42. The active friction strips 41 are interlaced and connected to the passive friction strips 42 to form a braided structure. The length direction of the active friction strips 41 is vertically fixed to the end surfaces of the two fixed end plates 1 through the slot member 411. The two ends of the passive friction strip 42 are respectively fixed to the slot of the slot member 5 by the second fixing screw 51. The active friction strip 41 is connected to the windward force transmission part 3. Figure 5 shown.

[0039] Another structure of the braided portion of the present invention is as follows Figure 6 As shown, the braided portion 4 includes a strip-shaped active friction strip 41 and a plurality of strip-shaped passive friction strips 42. Each passive friction strip 42 is arranged in parallel. The active friction strip 41 is alternately connected with the plurality of passive friction strips 42 in upper and lower surfaces to form a braided structure. Figure 7 As shown, both ends of each passive friction strip 42 are respectively connected to the slots of the slotted member 5 , and the active friction strip 41 is connected to the windward force transmission part 3 .

[0040] Figure 4 and Figure 6 The difference between the two embodiments: Figure 4 The serrated setting method is difficult to construct, but since the passive friction strip 42 can be installed in the slot of the slotted member 5 as a whole at one time, the passive friction strip 42 has a strong "weaving" constraint ability on the active friction strip 41, so it is adopted Figure 4 The overall energy dissipation capacity of the braided portion 4 shown will be stronger; Figure 6 The second solution adopted in the middle braided portion has a lower construction difficulty because the passive friction strips 42 are arranged in parallel in sequence.

[0041] like Figure 8 As shown, the slot member 411 includes a bottom fixing plate 4111 and two clamping plates 4112 vertically arranged on the bottom fixing plate 4111. The end of the active friction strip 41 is clamped between the two clamping plates 4112 and fixed by a first fixing screw 4113. The active friction strip 41 is arranged in the middle position between two slot-shaped members 5 at the same horizontal height, and can also be arranged at a position of a row of slot-shaped members 5 close to the windward surface of the wind-resistant barrier of the present application, but the windward force transmission part 3 must not collide with the passive friction strip 42 during use, otherwise it will affect the service life of the passive friction strip 42.

[0042] Both the active friction strip 41 and the passive friction strip 42 adopt the structural form of high-friction rubber material wrapped elastic alloy material, and the corners of the elastic alloy material should be chamfered during production to reduce stress concentration. At the same time, the elastic alloy material and the high-friction rubber material should be connected by ribs or screws on the outside of the elastic alloy material to enhance the integrity of the elastic alloy material and the high-friction rubber material. The active friction strip 41 and the passive friction strip 42 made in this way have good elasticity and high strength, and are easy to be processed into a woven structure, which is convenient for friction energy consumption. In addition, although both the active friction strip 41 and the passive friction strip 42 have great friction, the designer should combine the physical and mechanical properties of the high-friction rubber material and the arrangement of the braided part 4 to ensure that the active friction strip 41 can swing smoothly in the braided part 4 and make the braided part 4 have strong energy consumption capacity. As long as the active friction strip 41 can repeatedly swing multiple times under the drive of the windward force transmission part 3, combined with the high friction characteristics of the braided part 4, it can ensure that the braided part 4 as a whole provides extremely high energy consumption capacity for wind resistance of this application.

[0043] like Fig. 9 As shown, windward force transmission parts 3 are inserted and connected between multiple rows of active friction strips 41, and each windward force transmission part 3 includes a lightweight steel cable 31. The lightweight steel cable 31 is inserted into the braided part 4, and a rotating sleeve 32 is actively sleeved on the lightweight steel cable 31 between two adjacent braided parts 4. Each rotating sleeve 32 is fixedly connected with a fan blade 33. The fan blade 33 can cause the rotating sleeve 32 to rotate under the influence of wind load, and the fan blade 33 has a wind blocking effect during the rotation process.

[0044] In order to reduce the friction between the lightweight steel cable 31 and the rotating sleeve 32 when the fan blade 33 rotates, a bearing is provided between the lightweight steel cable 31 and the rotating sleeve 32 .

[0045] like Fig.10 and Fig.11 As shown, in the connection area between the lightweight steel cable 31 and the active friction strip 41, a connecting rope loop 62 is tied and connected, and a fixed pad 63 is also fixedly connected to the grooved member 5 on the windward side. The fixed pad 63 is provided with a buckle 64, and a spring member 61 is connected between the buckle 64 and the connecting rope loop 62. When the windward force transmission part 3 has a tendency to move away from the windward surface, the spring member 61 will have a tendency to pull the windward force transmission part 3 back to its original position.

[0046] Preferably, the fixed pad 63 should be arranged on the upper end surface of the groove member 5 in the middle of the two windward force transmission parts 3, so as to prevent the elastic connecting part 6 from blocking the windward area of ​​the fan blade 33.

[0047] The elastic force of the spring member 61 should match the function of the braided portion 4. When the windward force transmission portion 3 has the maximum displacement tendency, the spring member 61 should still be in the elastic stage, and when the windward area of ​​the blade 33 decreases, the spring member 61 should have the tendency to pull the windward force transmission portion 3 back to its original position.

[0048] The fan blades 33 may be straight or curved.

[0049] The number of blades 33 fixed to each rotating sleeve 32 should be 2 to 3.

[0050] The bottom plate 2 is also connected between the two fixed end plates 1, which can fix the overall frame of the wind-resistant barrier.

[0051] The working principle of the unpowered wind-resistant barrier used in bridge engineering of the present invention is:

[0052] The fan blades 33 will rotate around the rotating sleeve 32 under the action of wind load. The windward area of ​​the fan blades 33 fixed on the single rotating sleeve 32 is constantly changing when facing the wind load. When the windward area of ​​the fan blades 33 is large, the wind load will cause the windward force transmission part 3 to have a movement trend away from the windward surface of the wind-resistant barrier of the present application. At this time, the area where the active friction strip 41 passes through the windward force transmission part 3 will produce the same movement trend. In this process, the active friction strip 41 will consume energy by friction with the passive friction strip 42. However, when the windward area of ​​the fan blades 33 is reduced, the windward force transmission part 3 will be pulled by the elastic connecting part 6 to produce a trend of returning to the original position. During this trend, the active friction strip 41 will also consume energy by friction with the passive friction strip 42. When the fan blades 33 reach a larger windward area again, the windward force transmission part 3 will again have a movement trend away from the windward surface of the wind-resistant barrier.

[0053] The installation method of the non-powered wind-resistant barrier for bridge engineering is implemented in the following steps:

[0054] Step 1, prefabricate the windward force transmission part 3 and the braiding part 4 in the factory;

[0055] The active friction strip 41 is installed by using the slot member 411, so that the active friction strip 41 and the passive friction strip 42 form a braided braided portion 4;

[0056] The windward force transmission part 3 only needs to prepare a lightweight steel cable 31 and a rotating sleeve 32 to be fixedly connected with a fan blade 33 .

[0057] Step 2, installing the bottom plate 2 at a predetermined position on the bridge, and connecting a plurality of sets of mutually parallel grooved members 5 between the two fixed end plates 1;

[0058] Step 3, installing the fixed end plate 1 at a predetermined position on the base plate 2;

[0059] Step 4, connecting a plurality of braided portions 4 between the fixed end plates 1, wherein the braided portions 4 are located between each group of grooved members 5;

[0060] Step 5, vertically connect the windward force transmission part 3 to the woven part 4: first pass the lightweight steel cable 31 through the active friction strip 41 of the bottom woven part 4, put the rotating sleeve 32 on the lightweight steel cable 31, and then pass it through the second active friction strip 41, repeat the operation to install the windward force transmission part 3, and connect the elastic connecting part 6 between the windward force transmission part 3 and the grooved part 5.

[0061] Through the above-mentioned method, the non-powered wind-proof barrier used in bridge engineering of the present invention can reduce the vibration impact of crosswind on bridge structure; the whole process of dynamic energy consumption of the wind-proof barrier does not require the participation of electricity, which is energy-saving; the wind-proof barrier of the present invention also has the advantages of convenient industrial production, manufacturing and installation, and if any parts are damaged, they can be directly observed and judged by naked eyes and are easy to replace.

Claims

1. Unpowered wind-resistant barrier for bridge engineering, It is characterized in that It comprises two mutually parallel fixed end plates (1), a plurality of elastic braided portions (4) being connected between the two fixed end plates (1), and a plurality of mutually parallel windward force transmission portions (3), each of the windward force transmission portions (3) vertically passing through the plurality of braided portions (4); A plurality of groups of mutually parallel grooved members (5) are connected between the two fixed end plates (1), each of the braided portions (4) is located between each group of the grooved members (5), and the braided portions (4) are connected to the grooved members (5); Each of the braided portions (4) comprises a strip-shaped active friction strip (41) and a sawtooth-shaped passive friction strip (42), the active friction strips (41) are interlaced and connected to the passive friction strips (42) to form a braided structure, the two ends of the active friction strip (41) are respectively connected to the fixed end plate (1), the two ends of the passive friction strip (42) are respectively connected to the slots of the slot-shaped member (5), and the windward force transmission portion (3) is passed through the active friction strip (41); or each of the braided portions (4) comprises a strip-shaped active friction strip (41) and a plurality of strip-shaped passive friction strips (42), each of the passive friction strips (42) is arranged in parallel, the active friction strip (41) sequentially contacts and passes through a plurality of passive friction strips (42) alternately on the upper and lower sides to form a braided structure, the two ends of each of the passive friction strips (42) are respectively connected to the slots of the slot-shaped member (5), and the windward force transmission portion (3) is passed through the active friction strip (41); Each of the windward force transmission parts (3) comprises a light steel cable (31), the light steel cable (31) passing through the braided part (4), a rotating sleeve (32) flexibly sleeved between two adjacent braided parts (4) on the light steel cable (31), and a fan blade (33) fixedly connected to each rotating sleeve (32).

2. The unpowered wind-resistant barrier for bridge engineering according to claim 1, It is characterized in that The grooved member (5) is connected to one end of the elastic connection portion (6), and the other end of the elastic connection portion (6) is connected to the windward force transmission portion (3).

3. The unpowered wind-resistant barrier for bridge engineering according to claim 2, It is characterized in that The elastic connection part (6) comprises a connection rope loop (62), the connection rope loop (62) being connected in sequence to a spring component (61) and a ring buckle (64), the connection rope loop (62) being connected to the windward force transmission part (3) at a location where it is connected to the braided part (4), and the ring buckle (64) being connected to the groove-shaped component (5).

4. The unpowered wind-resistant barrier for bridge engineering according to claim 3, It is characterized in that A bottom plate (2) is also connected between the two fixed end plates (1).

5. Installation method of non-powered wind-resistant barrier for bridge engineering, It is characterized in that The unpowered wind-resistant barrier for bridge engineering as claimed in claim 4 is implemented in accordance with the following steps: Step 1, prefabricating the windward force transmission part (3) and the braiding part (4) in a factory; Step 2, installing the base plate (2) at a predetermined position on the bridge; Step 3, installing the fixed end plate (1) at a predetermined position on the base plate (2); Step 4, connecting a plurality of braided portions (4) between the fixed end plates (1); Step 5, vertically threading the windward force transmission portion (3) through the braided portion (4); The step 2 also includes connecting a plurality of groups of mutually parallel grooved members (5) between two fixed end plates (1), the braided portion (4) in step 4 is located between each group of grooved members (5), and the step 5 also includes connecting an elastic connecting portion (6) between the windward force transmission portion (3) and the grooved member (5).

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