Bridge wind-resistant barrier

Abstract

The utility model belongs to the technical field of bridges, and discloses a bridge wind-resistant barrier which comprises a plurality of wind-resistant units which are symmetrically installed on the two sides of a bridge body, and each wind-resistant unit is composed of a machine frame device used for vertically supporting and fixing in a balanced mode and a flow guiding device used for guiding airflow to flow in a balanced and wind-resistant mode. The flow guide device is mounted on the outer side of the rack device; the flow guide device comprises a plurality of main flow guide assemblies and auxiliary flow guide assemblies, the main flow guide assemblies are symmetrically arranged up and down and used for guiding airflow to obliquely blow and avoid the bridge body, the auxiliary flow guide assemblies are used for dividing the airflow up and down, the main flow guide assemblies are installed on the vertical assemblies, and the flow guide directions of the two main flow guide assemblies which are symmetrically arranged up and down are symmetrically arranged; the auxiliary flow guide assembly is installed at the outer end of the horizontal assembly. Through the combination of the main flow guide assembly and the auxiliary flow guide assembly, strong wind airflow is obliquely guided and divided into an upper stream and a lower stream, and direct impact of wind is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge technical field, especially, a kind of bridge windbreak. BACKGROUND

[0002] In modern transportation network, bridge as the important passageway connecting two banks, its safety and stability are crucial.However, the influence of wind force in natural environment on bridge structure cannot be ignored, especially in strong wind or extreme weather conditions, bridge may face serious wind-induced vibration problem, which not only affects driving safety, but also can cause damage to bridge structure.In order to effectively cope with this challenge, bridge windbreak emerges as the times require, and becomes a strong defense line to protect traffic safety.

[0003] The utility model discloses a kind of bridge windbreaks, install in the side of bridge body, it is composed of several windbreak units, each windbreak unit includes wind shield, balance plate, stabilizer and pull rope.The wind shield is vertically arranged above bridge body, the balance plate is vertically arranged below bridge body, and the stabilizer is horizontally arranged outside bridge body;Pull rope connects the top end of wind shield and the end of stabilizer away from bridge body, so that the pull rope, stabilizer and wind shield form right triangle structure;Pull rope also connects the bottom end of balance plate and the end of stabilizer away from bridge body, so that the pull rope, stabilizer and balance plate form right triangle structure.Through setting stabilizer outside bridge body, and using pull rope instead of conventional support rod for supporting windbreak, effectively improve the use area of bridge and the wind resistance of windbreak.

[0004] But the above-mentioned patent is limited to the guidance and dispersion of airflow, and most of the wind force finally acts on the bridge body, which is easy to cause damage, so a new device needs to be designed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of bridge windbreak to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a bridge wind resistance barrier, including a plurality of wind resistance units, the wind resistance unit is installed symmetrically on both sides of bridge body, still including two parts that each wind resistance unit is by the frame device that is used for up-down balance support fixed and the air guide device that is used for guiding airflow flow balance wind resistance, the air guide device installs outside the frame device, the frame device includes two up-down symmetrically arranged vertical components that are used for vertical support fixed, the vertical component outside middle part is provided with horizontal component that is used for horizontal support fixed, the horizontal component passes through the cable and connects two vertical components, the air guide device includes a plurality of main air guide components that are used for guiding airflow oblique blow and avoids the bridge body and the auxiliary air guide component that is used for the airflow is divided into up and down, the main air guide component installs on the vertical component, and up-down symmetric two main air guide components are symmetrically arranged in the direction of air guide, the auxiliary air guide component installs the horizontal component outer end.

[0008] Further, the vertical component includes two columns that are symmetrically arranged, a plurality of first cross beams are arranged between the columns, a connecting ring is arranged at the top end of the column, the horizontal component includes two horizontal beams that are symmetrically arranged, a second cross beam is arranged between the horizontal beams, a support wheel is arranged in the middle of the horizontal beam, and a fixing frame is arranged at the outer end of the horizontal beam.

[0009] Further, the connecting ring and the column are threadedly connected, and the cable is bound on the connecting ring of the two columns that are symmetrically arranged under the support of the support wheel.

[0010] Further, the main air guide component includes a main air guide plate, two connecting seats are symmetrically arranged at the back of the main air guide plate, and a support mechanism for generating turbulence is arranged at the back of each connecting seat.

[0011] Further, the support mechanism includes a slide rod, a limiting plate is arranged at the end of the slide rod, and a spring is arranged on the slide rod.

[0012] Further, the auxiliary air guide component includes an auxiliary air guide plate, the auxiliary air guide plate is in the shape of a V, and a guide arc is arranged at the middle tip of the auxiliary air guide plate.

[0013] Compared with the prior art, the beneficial effects are:

[0014] Through the combination of the main air guide component and the auxiliary air guide component, the strong wind airflow is obliquely guided and divided into two, and the direct impact of the wind on the bridge is reduced.

[0015] The main air guide plate can repeatedly move through the elastic buffer mechanism of the slide rod and the spring, generate turbulence, and further weaken the harm of the airflow.

[0016] The frame is stabilized by connecting the symmetrical upper and lower columns with steel cables and with the assistance of support wheels, which can effectively resist the horizontal force of strong winds. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the wind-resistant unit structure of a bridge wind-resistant barrier according to the present invention;

[0018] Figure 2 This is a schematic diagram of the installation of a bridge wind-resistant barrier according to the present invention;

[0019] Figure 3 This is a front axonometric view of the frame device of the bridge wind-resistant barrier described in this utility model;

[0020] Figure 4 This is a rear axonometric view of the frame device of the bridge wind-resistant barrier described in this utility model;

[0021] Figure 5 This is a frontal axonometric view of the flow guiding device of the bridge wind-resistant barrier described in this utility model;

[0022] Figure 6 This is a left view of the flow guiding device of the bridge wind-resistant barrier described in this utility model.

[0023] In the attached diagram, the following are the reference numerals: 101, column; 102, first crossbeam; 103, connecting ring; 104, horizontal beam; 105, second crossbeam; 106, support wheel; 107, fixing frame; 108, steel cable; 201, secondary guide vane; 202, guide arc; 203, sliding rod; 204, limiting plate; 205, spring; 206, connecting seat; 207, main guide vane; 3, bridge body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 A wind-resistant barrier for bridges includes several wind-resistant units, which are symmetrically installed on both sides of the bridge body 3. Each wind-resistant unit consists of a frame device for upper and lower balance support and fixation, and a flow guiding device for guiding airflow to balance wind resistance. The flow guiding device is installed on the outside of the frame device.

[0026] In this embodiment: the frame device includes two vertically symmetrically arranged vertical components for vertical support and fixation, and a horizontal component for horizontal support and fixation is arranged in the middle of the outer side of the vertical components. The horizontal component connects the two vertical components through steel cables 108. The vertical components include two symmetrically arranged columns 101, and a plurality of first crossbeams 102 are arranged between the columns 101. A connecting ring 103 is provided at the top of the columns 101. The horizontal components include two symmetrically arranged horizontal beams 104, and a second crossbeam 105 is arranged between the horizontal beams 104. A support wheel 106 is installed in the middle of the horizontal beams 104. A fixing frame 107 is provided on the head extension; the connecting ring 103 and the column 101 are threadedly connected, and the steel cable 108 is tied to the connecting ring 103 of the two vertically symmetrical columns 101 under the support of the support wheel 106; the columns 101 are installed vertically symmetrically on the edge of the bridge body 3, and the steel cable 108 is tied to the connecting ring 103 of the two vertically symmetrical columns 101 under the support of the support wheel 106. The horizontal component of the airflow pushes the column 101 to bend towards the bridge body 3 through the first crossbeam 102. Since the columns 101 are vertically symmetrically arranged, the components of the force cancel each other out through the pull of the steel cable 108, thus ensuring balance.

[0027] In this embodiment, the flow guiding device includes several main flow components symmetrically arranged vertically for guiding airflow obliquely to avoid the bridge body 3, and secondary flow guiding components for splitting airflow upwards and downwards. The main flow components are mounted on the vertical component, and the two main flow components symmetrically arranged vertically are symmetrically positioned in the flow guiding direction. The secondary flow guiding components are mounted on the outer end of the horizontal component. The main flow component includes a main flow plate 207, and two connecting seats 206 are symmetrically arranged behind the main flow plate 207. Each connecting seat 206 is equipped with a support mechanism for elastically buffering the turbulence generated. The support mechanism includes a slide rod 203, with a limit plate 204 at the end of the slide rod 203, and a spring 205 is installed on the slide rod 203. The secondary guide plate assembly includes a secondary guide plate 201, which is V-shaped and has a guide arc 202 at its central tip. The secondary guide plate 201 is installed between the fixing frames 107 at the ends of the two horizontal beams 104. The slide rod 203 is slidably installed on the first crossbeam 102 and is fixed to the primary guide plate 207 by the connecting seat 206. The limiting plate 204 prevents the slide rod 203 from slipping off. When a strong wind blows, the secondary guide plate 201 splits the airflow into two streams, one above the other, through the guide arc 202. The two streams blow towards the symmetrical main guide plates 207 and flow away from the bridge body 3 along the main guide plates 207. At the same time, the main guide plates 207 are subjected to force and compressed by the spring 205 under the support of the slide rod 203. When the airflow decreases, the spring 205 releases its elasticity and pushes the main guide plates 207 to reset. Therefore, the main guide plates 207 are in a state of repeated movement, which disturbs the airflow and further reduces the harm of the airflow. In addition, due to the symmetrical arrangement, the vertical components of the airflow cancel each other out, ensuring balance.

[0028] Working principle: During installation, the columns 101 are symmetrically installed on the edge of the bridge body 3. The steel cable 108 is tied to the connecting ring 103 of the two symmetrical columns 101 under the support of the support wheel 106. The secondary guide plate 201 is installed between the fixing frame 107 at the ends of the two horizontal beams 104. The slide rod 203 is slidably installed on the first crossbeam 102 and the main guide plate 207 is fixed by the connecting seat 206. The limiting plate 204 prevents the slide rod 203 from slipping off. When a strong wind blows, the secondary guide plate 201 splits the airflow into two streams, one above the other, through the guide arc 202. The two streams blow towards the symmetrically positioned main guide plates 207 and flow away from the bridge body 3 along the main guide plates 207. At the same time, the main guide plates 207 are under force and compressed by the spring 205 under the support of the slide rod 203. When the airflow decreases, the spring 205 releases its elasticity and pushes the main guide plates 207 back to their original position. This causes the main guide plates 207 to move repeatedly, disturbing the airflow and further reducing the harm caused by the airflow. Furthermore, due to the symmetrical arrangement, the vertical component of the airflow cancels each other out, ensuring balance. The horizontal component of the airflow pushes the column 101 towards the bridge body 3 through the first crossbeam 102. Since the column 101 is symmetrically arranged, the components of the column cancel each other out through the tension of the steel cable 108, ensuring balance.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge wind-resistant barrier, comprising a plurality of wind-resistant units, wherein the wind-resistant units are symmetrically installed on both sides of the bridge body (3), characterized in that: Each wind-resistant unit also consists of two parts: a frame assembly for vertical and horizontal balancing support and a flow guide device for guiding airflow to balance wind resistance. The flow guide device is installed on the outside of the frame assembly. The frame device includes two vertically symmetrically arranged vertical components for vertical support and fixation, and a horizontal component for horizontal support and fixation is arranged in the middle of the outer side of the vertical components. The horizontal component connects the two vertical components by steel cable (108). The flow guiding device includes several main flow components arranged symmetrically on the top and bottom for guiding the airflow to blow obliquely to avoid the bridge body (3) and secondary flow guiding components for splitting the airflow upward and downward. The main flow components are installed on the vertical component, and the two main flow components arranged symmetrically on the top and bottom are arranged symmetrically in the flow guiding direction. The secondary flow guiding components are installed on the outer end of the horizontal component.

2. The bridge wind-resistant barrier according to claim 1, characterized in that: The vertical assembly includes two symmetrically arranged columns (101), with a plurality of first crossbeams (102) arranged between the columns (101), and a connecting ring (103) provided at the top of the columns (101); the horizontal assembly includes two symmetrically arranged horizontal beams (104), with a second crossbeam (105) arranged between the horizontal beams (104), a support wheel (106) installed in the middle of the horizontal beams (104), and a fixing frame (107) extending outward from the end of the horizontal beams (104).

3. A bridge wind-resistant barrier according to claim 2, characterized in that: The connecting ring (103) and the column (101) are threaded together, and the steel cable (108) is bound to the connecting ring (103) of the two vertically symmetrical columns (101) under the support of the support wheel (106).

4. A bridge wind-resistant barrier according to claim 1, characterized in that: The main flow assembly includes a main flow plate (207), and two connecting seats (206) are symmetrically arranged behind the main flow plate (207). Each connecting seat (206) is equipped with a support mechanism for elastically buffering the turbulence generated.

5. A bridge wind-resistant barrier according to claim 4, characterized in that: The support mechanism includes a slide rod (203), a limit plate (204) is provided at the end of the slide rod (203), and a spring (205) is installed on the slide rod (203).

6. A bridge wind-resistant barrier according to claim 1, characterized in that: The secondary flow guide assembly includes a secondary flow guide plate (201), which is V-shaped, and a flow guide arc (202) is provided at the tip of the middle of the secondary flow guide plate (201).

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