Energy-saving vortex-induced vibration suppression device for split double-box girder

Abstract

The invention relates to the technical field of bridge engineering, and discloses an energy-saving vortex-induced vibration suppression device for a split double-box girder, the split double-box girder comprises two box girders which are symmetrically arranged in the transverse bridge direction, a plurality of transverse connecting beams are arranged between the two box girders, a slot is formed between the two adjacent transverse connecting beams, each box girder is provided with an electrical component, and the electrical components are connected with the two box girders. The energy-saving vortex-induced vibration suppression device comprises a solar panel, a storage battery and a control box provided with a controller. According to the split double-box girder, the solar panels extending in the transverse bridge direction are arranged on the box girders located on the two sides of the open grooves at the same time, vortex-induced vibration possibly generated by the split double-box girder can be effectively restrained, and then the vortex-induced vibration performance of the split double-box girder is effectively improved. Meanwhile, the solar panel is adopted as a wind shielding component, light energy can be converted into electric energy, and therefore part of electric energy needed by work is provided for related electric components on the split double-box girder, reasonable utilization of resources is achieved, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering, and in particular to an energy-saving vortex-induced vibration suppression device for a split double box girder. Background Art

[0002] The contents in this section merely provide background information related to the present invention and may not constitute prior art.

[0003] Split double box girders with slots are widely used in long-span bridges because of their good flutter performance.

[0004] However, due to the presence of the slots, the vortex-induced vibration performance of the split double box girder will be deteriorated. The so-called vortex-induced vibration is simply a forced vibration with self-excited properties that occurs in the low wind speed range. Among them, when the amplitude of the vortex-induced vibration generated by the split double box girder is large, it will affect driving safety and passenger comfort, and the long-term vibration of the split double box girder may also cause fatigue damage to the structure.

[0005] At the same time, in the known split double box girder, the bridge deck of the box girder is usually equipped with electrical components such as street lights, which consume a lot of electricity during use. Directly supplying electricity to these electrical components through the mains will result in a high energy consumption problem. Summary of the invention

[0006] In view of this, the object of the present invention is to provide an energy-saving vortex-induced vibration suppression device for a split double box girder, in the hope of effectively suppressing the vortex-induced vibration that may be generated by the split double box girder, and to provide electrical energy to the electrical components on the split double box girder through the device, thereby achieving energy-saving effects.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] The present invention discloses an energy-saving vortex-induced vibration suppression device for a split double box girder, wherein the split double box girder comprises two box girders symmetrically arranged in the transverse direction of the bridge, a plurality of transverse connecting beams spaced apart in the direction of the bridge are arranged between the two box girders, a slot is formed between two adjacent transverse connecting beams, and electrical components are arranged on each of the box girders;

[0009] The energy-saving vortex-induced vibration suppression device comprises a solar panel, a storage battery and a control box provided with a controller;

[0010] The box beams located on both sides of each slot are provided with solar panels extending along the transverse direction toward the center of the slot, and the length of each solar panel along the longitudinal direction is equal to the length of the slot along the longitudinal direction;

[0011] The solar panels, the electrical components on each of the box beams, and the storage battery are all electrically connected to the controller.

[0012] Furthermore, the width of each solar panel along the transverse bridge direction is equal to 18.75% to 25.00% of the width of the slot along the transverse bridge direction.

[0013] Furthermore, the top surface of each solar panel and the top surface of the corresponding box beam are in the same horizontal plane.

[0014] Furthermore, the energy-saving vortex-induced vibration suppression device further includes a turnover frame corresponding to each of the solar panels, and a turnover drive mechanism corresponding to each of the turnover frames;

[0015] The solar panel is mounted on the corresponding flip frame, and one side of the flip frame is movably connected to the corresponding box beam so that the flip frame can pivot between a horizontal position and a vertical position; the flip drive mechanism is configured to drive the corresponding flip frame to pivot between a horizontal position and a vertical position;

[0016] Wherein, when the flip frame is in a horizontal position, the solar panel on the flip frame is in a horizontal state extending along the horizontal bridge direction toward the center of the slot; when the flip frame is in a vertical position, the solar panel on the flip frame is in a vertical state extending along the vertical direction.

[0017] Furthermore, the flipping drive mechanism includes a worm, a worm wheel and a drive motor;

[0018] The overturning frame is movably connected to the corresponding box beam through the worm gear, so that the overturning frame can pivot around the axis of the worm gear between a horizontal position and a vertical position;

[0019] The worm gear is connected to the driving motor so as to drive the worm gear to rotate through the driving motor, and the worm gear is meshed with the worm for transmission.

[0020] Furthermore, the driving motor is disposed in the control box and is electrically connected to the controller;

[0021] The output shaft of the driving motor extends to the outside of the control box and is connected to the worm gear. The outer wall of the control box is provided with a cover shell which is open at the bottom and is used to cover the worm gear.

[0022] Furthermore, the flip frame is provided with a locking piece, and the locking piece is provided with a horizontal locking hole;

[0023] The energy-saving vortex-induced vibration suppression device also includes a first linear drive and a second linear drive corresponding to the locking member one by one; the first linear drive includes a first locking shaft capable of reciprocating in a horizontal direction, and the second linear drive includes a second locking shaft capable of reciprocating in a horizontal direction;

[0024] Wherein, when the flip frame is in a horizontal position, the locking hole of the locking member is aligned with the corresponding first locking shaft; when the flip frame is in a vertical position, the locking hole of the locking member is aligned with the corresponding second locking shaft.

[0025] Furthermore, the first linear drive and the second linear drive are both electrically connected to the controller.

[0026] Furthermore, the locking member is arranged on a side of the flip frame in a horizontal position away from the corresponding box beam.

[0027] Furthermore, the battery and the control box are arranged in one-to-one correspondence with each of the solar panels; the control box is arranged on the corresponding box beam, and the battery is arranged in the corresponding control box.

[0028] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0029] The vortex-induced vibration suppression device disclosed in the present invention can use the solar panels to shield the part of the slot close to the box girder by simultaneously arranging solar panels extending along the transverse direction on the box girders located on both sides of each slot. In this way, on the basis of ensuring that the wind can penetrate the slot so that the split double box girder has better flutter performance, the solar panels can be used to disrupt the vortex at the slot of the split double box girder and change the air flow characteristics at the slot, thereby effectively suppressing the vortex-induced vibration that may be generated by the split double box girder, thereby effectively improving the vortex-induced vibration performance of the split double box girder.

[0030] At the same time, the present invention uses solar panels as wind-shielding components to convert light energy into electrical energy, thereby providing the relevant electrical components on the split double box girder with part of the electrical energy required for work, thereby reducing the burden of powering the electrical components on the split double box girder entirely through municipal electricity, achieving rational utilization of resources and achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a split double box girder provided in Example 1 of the present invention;

[0032] Figure 2 A schematic structural diagram of a split double box girder and a vortex-induced vibration suppression device provided in Example 1 of the present invention;

[0033] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0034] Figure 4 It is a curve diagram showing the relationship between the amplitude of vertical vortex-induced vibration of a split double box girder without the vortex-induced vibration suppression device disclosed in the present invention and the wind speed under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%;

[0035] Figure 5 It is a curve diagram showing the relationship between the amplitude of torsional vortex-induced vibration and wind speed of a split double box girder without the vortex-induced vibration suppression device disclosed in the present invention under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%;

[0036] Figure 6 A curve diagram showing the relationship between the vertical vortex-induced vibration amplitude and wind speed of a split double box girder provided with the vortex-induced vibration suppression device disclosed in the present invention and having a solar panel width along the transverse bridge direction equal to 25.00% of the slot width along the transverse bridge direction under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%;

[0037] Figure 7 A curve diagram showing the relationship between the amplitude of torsional vortex-induced vibration and wind speed of a split double box girder provided with the vortex-induced vibration suppression device disclosed in the present invention and having a solar panel width along the transverse bridge direction equal to 25.00% of the width of the slot along the transverse bridge direction under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%;

[0038] Figure 8 A curve diagram showing the relationship between the vertical vortex-induced vibration amplitude and wind speed of a split double box girder provided with the vortex-induced vibration suppression device disclosed in the present invention, wherein the width of the solar panel along the transverse bridge direction is equal to 18.75% of the width of the slot along the transverse bridge direction under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%;

[0039] Fig. 9 A curve diagram showing the relationship between the amplitude of torsional vortex-induced vibration and wind speed of a split double box girder provided with the vortex-induced vibration suppression device disclosed in the present invention and having a solar panel width along the transverse bridge direction equal to 18.75% of the width of the slot along the transverse bridge direction under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%;

[0040] Fig.10 A schematic structural diagram of a split double box girder and a vortex-induced vibration suppression device provided in Example 2 of the present invention;

[0041] Fig.11 for Fig.10A cross-sectional view of a split double box girder and a vortex-induced vibration suppression device shown in FIG.

[0042] Fig.12 for Fig.11 A magnified view of the structure at B in the middle;

[0043] Fig.13 A schematic structural diagram of a solar panel, a flip frame, a flip drive mechanism and a locking member provided in Example 2 of the present invention;

[0044] Fig.14 for Fig.10 A magnified view of the structure at C in the middle;

[0045] Fig.15 for Fig.10 Enlarged view of the structure at D in the middle.

[0046] Icons: 10-solar panel, 20-battery, 30-control box, 40-controller, 50-turning frame, 60-turning drive mechanism, 61-worm, 62-worm wheel, 63-drive motor, 64-bearing seat, 65-cover, 70-locking piece, 71-locking hole, 80-first linear drive, 81-first locking axis, 90-second linear drive, 91-second locking axis, 100-split double box beam, 101-box beam, 102-transverse connecting beam, 103-slotting, 104-anti-collision guardrail, 105-street light. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described in conjunction with specific implementation methods below. The same figure marks in the accompanying drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Compared to the embodiments shown in the drawings, feasible embodiments within the scope of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0049] Example 1

[0050] Embodiment 1 of the present invention discloses an energy-saving vortex-induced vibration suppression device for a split double box girder 100 (hereinafter referred to as “vortex-induced vibration suppression device” for the sake of convenience), in the hope of effectively suppressing the vortex-induced vibration that may be generated by the split double box girder 100, thereby effectively improving the vortex-induced vibration performance of the split double box girder 100, and being able to provide electrical energy to electrical components on the split double box girder 100 through the device, thereby achieving energy-saving effects.

[0051] like Figure 1 As shown, it shows the general structure of the exemplary split double box girder 100 disclosed in this embodiment. The structure of the split double box girder 100 is also a possible structure of the split double box girder 100 known in the prior art.

[0052] exist Figure 1 In the split double box girder 100 shown, the split double box girder 100 may include two box girders 101 symmetrically arranged in the transverse direction of the bridge, and a plurality of transverse connecting beams 102 spaced apart in the longitudinal direction of the bridge may be further arranged between the two box girders 101, and a slot 103 is formed between two adjacent transverse connecting beams 102. Figure 1 Only a partial structure of the split double box girder 100 is shown. For example, the two box girders 101 of the split double box girder 100 can continue to extend along the longitudinal direction of the bridge, and there can be more transverse connecting beams 102 between the two box girders 101.

[0053] At the same time, the top surface (i.e., the bridge deck) of each box beam 101 can be provided with anti-collision guardrails 104 extending along the longitudinal direction of the bridge on both sides opposite to each other along the transverse direction of the bridge. In addition, each box beam 101 is also provided with electrical components. Among them, the electrical components can be street lights 105 arranged beside the anti-collision guardrails 104 on each box beam 101.

[0054] On this basis, in order to effectively suppress the vortex-induced vibration that may be generated by such a split double box girder 100 and provide the electrical components such as street lights 105 on each box girder 101 with the required electrical energy for operation, the vortex-induced vibration suppression device disclosed in this embodiment may include a solar panel 10, a battery 20 and a control box 30 equipped with a controller 40.

[0055] Combination Figure 2 and Figure 3 As shown, the box beams 101 located on both sides of each slot 103 are provided with solar panels 10 extending along the transverse direction toward the center of the slot 103. The length of each solar panel 10 along the longitudinal direction may be equal to the length of the slot 103 along the longitudinal direction, that is, the length of each solar panel 10 along the longitudinal direction may be equal to the spacing between two adjacent transverse connecting beams 102.

[0056] At the same time, the solar panel 10, the battery 20 and the electrical components on each box beam 101 are all electrically connected to the controller 40, so that the controller 40 can control the charging or discharging of the battery 20 and provide the electrical energy required for the electrical components on each box beam 101. When the battery 20 is charging, the solar panel 10 can convert light energy into electrical energy and store it in the battery 20, and when the battery 20 is discharging, it can provide the electrical energy required for the relevant electrical components on the box beam 101.

[0057] The storage battery 20 and the control box 30 can be arranged one by one with each solar panel 10, so that the electric energy generated by one solar panel 10 can be stored by one storage battery 20, and the charging and discharging of the single storage battery 20 can be controlled by the controller 40 in one control box 30. At the same time, the storage battery 20 can be arranged in the corresponding control box 30, so that the control box 30 can provide protection for the storage battery 20, the controller 40 and other components. Figure 2 The illustrated method is arranged on the outer side of the anti-collision guardrail 104 on the corresponding box beam 101 to optimize the structural design of the split double box beam 100 and facilitate the maintenance and repair of the control box 30 as needed in the later stage.

[0058] It can be understood that the vortex-induced vibration suppression device disclosed in the present embodiment can utilize the solar panels 10 to shield the portion of the slot 103 close to the box girder 101 by simultaneously arranging solar panels 10 extending along the transverse direction on the box girder 101 located on both sides of each slot 103. In this way, on the basis of ensuring that the wind can penetrate the slot 103 so that the split double box girder 100 has better flutter performance, the solar panels 10 can be utilized to disrupt the vortex at the slot 103 of the split double box girder 100 and change the air flow characteristics at the slot 103, thereby effectively suppressing the vortex-induced vibration that may be generated by the split double box girder 100, thereby effectively improving the vortex-induced vibration performance of the split double box girder 100.

[0059] At the same time, the present invention adopts the solar panel 10 as the wind shield component, which can convert light energy into electrical energy, thereby providing the relevant electrical components on the split double box girder 100 with the electrical energy required for part of the work, thereby reducing the burden of powering the electrical components on the split double box girder 100 entirely through the city power supply, realizing the rational use of resources and achieving energy-saving effects.

[0060] In some embodiments of the present invention, the width of each solar panel 10 along the transverse bridge direction may be equal to 18.75% to 25.00% of the width of the slot 103 along the transverse bridge direction. It is understandable that by limiting the width of each solar panel 10 along the transverse bridge direction, the split double box girder 100 can have good flutter performance and reduce the size of the solar panel 10 as much as possible, while making the vortex-induced vibration suppression device have a good vortex-induced vibration suppression effect, thereby optimizing the structural design of the vortex-induced vibration suppression device and reducing costs and material losses.

[0061] In some embodiments of the present invention, the top surface of each solar panel 10 may be in the same horizontal plane as the top surface of the corresponding box girder 101 to further optimize the structural design of the split double box girder 100 provided with a vortex-induced vibration suppression device.

[0062] In order to more clearly and intuitively see the effect of the vortex-induced vibration suppression device disclosed in this embodiment on the vortex-induced vibration that may be generated by the split double box girder 100, this embodiment also conducts segment model wind tunnel tests on the split double box girder 100 that is not provided with the vortex-induced vibration suppression device disclosed in this embodiment and the split double box girder 100 that is provided with the vortex-induced vibration suppression device disclosed in this embodiment, so as to obtain the relationship between the vertical vortex-induced vibration amplitude (which can be referred to as "vertical vortex vibration amplitude") and the torsional vortex-induced vibration amplitude (which can be referred to as "torsional vortex vibration amplitude") of the two types of split double box girders 100 and the wind speed. Among them, during the test process, the incoming wind attack angle is a positive angle of attack when the incoming wind blows toward the bottom plate of the box girder 101, and a negative angle of attack when it blows toward the bridge deck of the box girder 101.

[0063] like Figure 4 and Figure 5 As shown, Figure 4 A curve diagram showing the relationship between the vertical vortex-induced vibration amplitude and wind speed of the split double box girder 100 without the vortex-induced vibration suppression device disclosed in this embodiment under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25% is shown; Figure 5 A curve chart showing the relationship between the torsional vortex-induced vibration amplitude and wind speed of the split double box girder 100 without the vortex-induced vibration suppression device disclosed in this embodiment under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%.

[0064] Combination Figure 4 As shown in the content, the test found that at the three wind attack angles of -3°, 0°, and +3°, the vertical vortex-induced vibration locking wind speed range of the split double box girder 100 without the vortex-induced vibration suppression device disclosed in this embodiment is 7.0-9.5m / s, and the corresponding maximum amplitudes of the vertical vortex-induced vibration are 135.4mm, 138.6mm, and 96.2mm, respectively. Figure 5It can be seen from the shown content that at the three wind attack angles of -3°, 0° and +3°, the torsional vortex-induced vibration locking wind speed range of the split double box girder 100 that is not equipped with the vortex-induced vibration suppression device disclosed in this embodiment is 25.0~30.0m / s, and the corresponding maximum amplitudes of torsional vortex-induced vibration are 0.13°, 0.18° and 0.02° respectively.

[0065] like Figure 6 and Figure 7 As shown, Figure 6 A curve diagram showing the relationship between the vertical vortex-induced vibration amplitude and wind speed of the split double box girder 100 provided with the vortex-induced vibration suppression device disclosed in the present embodiment, and the width of the solar panel 10 along the transverse bridge direction being equal to 25.00% of the width of the slot 103 along the transverse bridge direction under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%;

[0066] Figure 7 A curve chart showing the relationship between the torsional vortex-induced vibration amplitude and wind speed of a split double box girder 100 provided with the vortex-induced vibration suppression device disclosed in this embodiment and with the width of the solar panel 10 along the transverse bridge direction being equal to 25.00% of the width of the slot 103 along the transverse bridge direction under the conditions of wind attack angles of -3°, 0°, +3°, uniform flow, and a damping ratio of 0.25%.

[0067] Combination Figure 6 and Figure 7 As can be seen from the shown content, the experiment found that after adopting the vortex-induced vibration suppression device disclosed in this embodiment, and the width of the solar panel 10 along the transverse bridge direction is equal to 25.00% of the width of the slot 103 along the transverse bridge direction, when the damping ratio is 0.25%, the vertical vortex-induced vibration and torsional vortex-induced vibration of the split double box girder 100 basically completely disappear.

[0068] In order to further verify the effect of the vortex-induced vibration suppression device disclosed in this embodiment on the vortex-induced vibration that may be generated by the split double box girder 100. Figure 8 and Fig. 9 As shown, Figure 8 A curve diagram showing the relationship between the vertical vortex-induced vibration amplitude and wind speed of the split double box girder 100 provided with the vortex-induced vibration suppression device disclosed in the present embodiment, and the width of the solar panel 10 along the transverse bridge direction being equal to 18.75% of the width of the slot 103 along the transverse bridge direction under the conditions of -3°, 0°, +3° wind attack angles, uniform flow, and a damping ratio of 0.25%; Fig. 9 A curve chart showing the relationship between the torsional vortex-induced vibration amplitude and wind speed of a split double box girder 100 provided with the vortex-induced vibration suppression device disclosed in this embodiment and with the width of the solar panel 10 along the transverse bridge direction being equal to 18.75% of the width of the slot 103 along the transverse bridge direction under the conditions of wind attack angles of -3°, 0°, +3°, uniform flow, and a damping ratio of 0.25%.

[0069] Combination Figure 8 It can be seen from the content shown that at the two wind attack angles of 0° and -3°, the maximum amplitude of the vertical vortex-induced vibration of the split double box girder 100 is reduced from 138.6mm and 135.4mm to 50.0mm and 17.7mm respectively. Compared with the split double box girder 100 without the vortex-induced vibration suppression device disclosed in this embodiment, the maximum amplitude of the vertical vortex-induced vibration is reduced by 64% and 87% respectively, indicating that the vortex-induced vibration suppression device disclosed in this embodiment has a good suppression effect on the vertical vortex-induced vibration of the split double box girder 100. At the same time, combined with Fig. 9 It can be seen from the shown contents that the split double box girder 100 provided with the vortex-induced vibration suppression device disclosed in this embodiment basically does not experience torsional vortex-induced vibration.

[0070] In summary, it can be seen that the vortex-induced vibration suppression device disclosed in this embodiment can effectively suppress the vortex-induced vibration that may be generated by the split double box girder 100 by setting a solar panel 10 extending along the transverse direction of the bridge, thereby improving the vortex-induced vibration performance of the split double box girder 100.

[0071] Example 2

[0072] On the basis of Example 1, it is considered that although the vortex-induced vibration that may be generated by the split double box girder 100 can be effectively suppressed by setting a solar panel 10 extending along the transverse direction at the slot 103, the existence of the solar panel 10 will always reduce the ventilation area of ​​the slot 103, and thus it will still affect the flutter performance of the split double box girder 100 at high wind speeds, causing the split double box girder 100 to flutter.

[0073] To this end, Example 2 of the present invention provides another energy-saving vortex-induced vibration suppression device for a split double box girder 100. Different from Example 1, the device sets the solar panel 10 to be movable and flippable, so that the device is expected to selectively improve the vortex-induced vibration performance and flutter performance of the split double box girder 100.

[0074] Combination Figure 10 to Figure 11 As shown in the content, the energy-saving vortex-induced vibration suppression device provided in this embodiment can also include a turning frame 50 corresponding to the solar panel 10 on a one-to-one basis, and a turning drive mechanism 60 corresponding to the turning frame 50 on a one-to-one basis.

[0075] In this embodiment, the flip frame 50 is used to provide a mounting carrier for the solar panel 10 described in the aforementioned embodiment 1, that is, the solar panel 10 can be mounted on the corresponding flip frame 50. At the same time, the side of the flip frame 50 close to the corresponding box beam 101 is movably connected to the corresponding box beam 101, so that the flip frame 50 can pivot between a horizontal position and a vertical position.

[0076] The flip driving mechanism 60 is transmission-connected to the corresponding flip frame 50 , so as to drive the corresponding flip frame 50 to pivot between a horizontal position and a vertical position through the flip driving mechanism 60 .

[0077] Wherein, when the flip frame 50 is in the Fig.11 or Fig.12 When in the horizontal position shown, the solar panel 10 on the flip frame 50 is in a horizontal state extending along the cross bridge direction toward the center of the slot 103. At this time, the top surface of the solar panel 10 can be in the same horizontal plane as the top surface of the corresponding box beam 101; correspondingly, when the flip frame 50 is in a vertical position, the solar panel 10 on the flip frame 50 is in a vertical state extending along the vertical direction. At this time, the solar panel 10 is basically parallel to the side of the corresponding box beam 101 facing the slot 103.

[0078] It can be understood that by setting the solar panel 10 on the flip frame 50 that can pivot between a horizontal position and a vertical position, when the split double box girder 100 is in a low wind speed environment and it is necessary to improve the vortex-induced vibration performance of the split double box girder 100, it is only necessary to keep each flip frame 50 in a horizontal position under the drive of the corresponding flip drive mechanism 60, so that each solar panel 10 can be in a horizontal state to suppress the vortex-induced vibration that may be generated by the split double box girder 100; correspondingly, when the split double box girder 100 encounters a high wind speed environment, it is only necessary to allow each flip frame 50 to pivot from a horizontal position to a vertical position under the drive of the corresponding flip drive mechanism 60, so that each solar panel 10 is transformed from a horizontal state to a vertical state, so as to increase the ventilation area of ​​the slot 103, thereby effectively suppressing the flutter that may be generated by the split double box girder 100.

[0079] The flipping driving mechanism 60 may be constructed in the following manner but is not limited thereto.

[0080] Combination Fig.12 and Fig.13 As shown, the flip drive mechanism 60 may include a worm 61, a worm wheel 62 and a drive motor 63. The flip frame 50 is movably connected to the corresponding box beam 101 through the worm 61, so that the flip frame 50 can pivot between the horizontal position and the vertical position around the axis of the worm 61. For example, the worm 61 can be a component fixedly arranged on the side of the flip frame 50 close to the corresponding box beam 101. In this case, a bearing seat 64 can be arranged on the side of the corresponding box beam 101 close to the slot 103, and the worm 61 can be rotated and matched with the bearing seat 64, so that the flip frame 50 can pivot between the horizontal position and the vertical position around the worm 61.

[0081] The worm wheel 62 is connected to the driving motor 63 to drive the worm wheel 62 to rotate. In addition, the worm wheel 62 is also meshed with the worm 61. The meshing position of the worm wheel 62 and the worm 61 can be aligned with the center of the corresponding flip frame 50, so that the flip frame 50 is more evenly stressed.

[0082] Thus, when the driving motor 63 drives the worm wheel 62 to rotate, the worm wheel 62 will drive the worm 61 to rotate, and then drive the flip frame 50 to pivot around the axis of the worm 61 between the horizontal position and the vertical position through the worm 61 .

[0083] It can be understood that the flipping drive mechanism 60 constructed in the above manner can not only drive the flipping frame 50 to pivot between the horizontal position and the vertical position, but also based on the self-locking property between the worm wheel 62 and the worm 61, when the worm wheel 62 and the worm 61 have the self-locking property, the worm 61 cannot drive the worm wheel 62 to rotate, which helps to improve the stability of the flipping frame 50 when it is in the horizontal position, the vertical position, or any position between the horizontal position and the vertical position. Moreover, since the transmission mechanism composed of the worm wheel 62 and the worm 61 can output a sufficiently large torque, it can effectively improve the reliability of the flipping frame 50 when it pivots between the horizontal position and the vertical position.

[0084] Among them, refer to Fig.12 As shown, the aforementioned drive motor 63 can be arranged in the control box 30, so as to provide protection for the drive motor 63 through the control box 30. At the same time, the drive motor 63 can be electrically connected to the controller 40 in the control box 30, so as to directly provide the drive motor 63 with electric energy stored in the battery 20 through the controller 40, and control the drive motor 63 to work through the controller 40, thereby further realizing the rational use of resources.

[0085] It is understandable that when the drive motor 63 is disposed in the control box 30, the output shaft of the drive motor 63 can be extended outside the control box 30 and then connected to the worm gear 62, so that the worm gear 62 can smoothly mesh with the worm 61 on the flip frame 50. Fig.12 or Fig.14 As shown, a cover shell 65 with an open lower portion for covering the worm gear 62 can also be provided on the outer wall of the control box 30, so as to provide protection for the worm gear 62 through the cover shell 65, and to avoid as much as possible that the service life of the worm gear 62 exposed to the external environment is reduced by the influence of bad weather such as rain.

[0086] In some embodiments of the present invention, in order to further improve the stability of the flip frame 50 when it is in the horizontal position and the vertical position, Fig.13 As shown in the figure, each flip frame 50 may further be provided with a locking member 70 , and a horizontal locking hole 71 is provided on the locking member 70 .

[0087] Combination Fig.11 and Fig.12 As shown in the figure, the energy-saving vortex-induced vibration suppression device may further include a first linear drive 80 and a second linear drive 90 corresponding to the locking member 70. The first linear drive 80 may include a first locking shaft 81 capable of reciprocating in the horizontal direction, and the second linear drive 90 may include a second locking shaft 91 capable of reciprocating in the horizontal direction.

[0088] When the flip frame 50 is in a horizontal position, the locking hole 71 of the locking member 70 on the flip frame 50 is aligned with the first locking shaft 81 of the corresponding first linear drive 80. At this time, the first linear drive 80 can drive the first locking shaft 81 to move as follows: Fig.15 The method shown in the figure moves in the horizontal direction into the locking hole 71 of the corresponding locking member 70, thereby locking the position of the flip frame 50 in the horizontal position and improving the stability of the flip frame 50 in the horizontal position; accordingly, when the flip frame 50 needs to pivot from the horizontal position to the vertical position, the first linear drive 80 first drives the first locking shaft 81 to withdraw from the locking hole 71 of the corresponding locking member 70, and then the flip frame 50 can be driven by the flip drive mechanism 60 to move from the horizontal position to the vertical position; when the flip frame 50 is in the vertical position, the locking hole 71 of the locking member 70 on the flip frame 50 is aligned with the second locking shaft 91 of the corresponding second linear drive 90. At this time, the second linear drive 90 can drive the second locking shaft 91 to move in the horizontal direction into the locking hole 71 of the corresponding locking member 70, so as to lock the position of the flip frame 50 in the vertical position and improve the stability of the flip frame 50 in the vertical position.

[0089] Among them, refer to Fig.13 As shown, the locking member 70 can be arranged on the side of the flip frame 50 in the horizontal position away from the corresponding box beam 101, so that when the first locking shaft 81 of the first linear drive 80 extends into the locking hole 71 of the locking member 70, the flip frame 50 can be subjected to force on both sides of the opposite sides along the cross bridge at the same time, thereby further improving the stability of the flip frame 50 in the horizontal position.

[0090] Furthermore, there may be two locking members 70 disposed on each flip frame 50 , and the two locking members 70 may be disposed on opposite sides of the flip frame 50 along the longitudinal direction.

[0091] Thus, when the flip frame 50 is in a horizontal position, Fig.10As shown, the two first linear drivers 80 corresponding to the two locking members 70 can drive their respective first locking shafts 81 to move into the locking holes 71 of the corresponding locking members 70 to further improve the stability of the flip frame 50 in the horizontal position; correspondingly, when the flip frame 50 is in the vertical position, the two second linear drivers 90 corresponding to the two locking members 70 can drive their respective second locking shafts 91 to move into the locking holes 71 of the corresponding locking members 70 to further improve the stability of the flip frame 50 in the vertical position.

[0092] The first linear drive 80 and the second linear drive 90 may both be electric cylinders, the first locking shaft 81 may be the output shaft of the first linear drive 80, and the second locking shaft 91 may be the output shaft of the second linear drive 90. At the same time, the first linear drive 80 and the second linear drive 90 may both be electrically connected to the aforementioned controller 40, so that the controller 40 directly provides the first linear drive 80 and the second linear drive 90 with electric energy stored in the battery 20, and the controller 40 controls the first linear drive 80 and the second linear drive 90 to work.

[0093] And, refer to Fig.10 or Fig.11 As shown, the first linear drive 80 and the second linear drive 90 can be arranged on the corresponding transverse connecting beam 102. For example, the first linear drive 80 can be arranged on the top surface of the corresponding transverse connecting beam 102, and the second linear drive 90 can be arranged on the bottom surface of the corresponding transverse connecting beam 102, so as to optimize the structural design of the entire split double box beam 100.

[0094] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving vortex-induced vibration suppression device for a split double box girder, the split double box girder comprises two box girders symmetrically arranged in the transverse direction of the bridge, a plurality of transverse connecting beams spaced along the bridge direction are arranged between the two box girders, a slot is formed between two adjacent transverse connecting beams, and electrical components are arranged on each of the box girders, characterized in that: The energy-saving vortex-induced vibration suppression device comprises a solar panel, a storage battery and a control box provided with a controller; The box beams located on both sides of each slot are provided with solar panels extending along the transverse direction toward the center of the slot, and the length of each solar panel along the longitudinal direction is equal to the length of the slot along the longitudinal direction; The solar panels, the electrical components on each of the box beams, and the storage battery are all electrically connected to the controller.

2. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 1 is characterized in that: The width of each solar panel along the transverse bridge direction is equal to 18.75% to 25.00% of the width of the slot along the transverse bridge direction.

3. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 1 is characterized in that: The top surface of each solar panel and the top surface of the corresponding box beam are in the same horizontal plane.

4. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 1 is characterized in that: The energy-saving vortex-induced vibration suppression device also includes a turnover frame corresponding to the solar panel one by one, and a turnover drive mechanism corresponding to the turnover frame one by one; The solar panel is mounted on the corresponding flip frame, and one side of the flip frame is movably connected to the corresponding box beam so that the flip frame can pivot between a horizontal position and a vertical position; the flip drive mechanism is configured to drive the corresponding flip frame to pivot between a horizontal position and a vertical position; Wherein, when the flip frame is in a horizontal position, the solar panel on the flip frame is in a horizontal state extending along the horizontal bridge direction toward the center of the slot; when the flip frame is in a vertical position, the solar panel on the flip frame is in a vertical state extending along the vertical direction.

5. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 4 is characterized in that: The flip driving mechanism comprises a worm, a worm wheel and a driving motor; The overturn frame is movably connected to the corresponding box beam through the worm gear, so that the overturn frame can pivot around the axis of the worm gear between a horizontal position and a vertical position; The worm gear is connected to the driving motor so as to drive the worm gear to rotate through the driving motor, and the worm gear is meshed with the worm for transmission.

6. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 5, characterized in that: The driving motor is disposed in the control box and electrically connected to the controller; The output shaft of the driving motor extends to the outside of the control box and is connected to the worm gear. The outer wall of the control box is provided with a cover shell which is open at the bottom and used to cover the worm gear.

7. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 4, characterized in that: The flip frame is provided with a locking piece, and the locking piece is provided with a horizontal locking hole; The energy-saving vortex-induced vibration suppression device also includes a first linear drive and a second linear drive corresponding to the locking member one by one; the first linear drive includes a first locking shaft capable of reciprocating in a horizontal direction, and the second linear drive includes a second locking shaft capable of reciprocating in a horizontal direction; Wherein, when the flip frame is in a horizontal position, the locking hole of the locking member is aligned with the corresponding first locking shaft; when the flip frame is in a vertical position, the locking hole of the locking member is aligned with the corresponding second locking shaft.

8. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 7 is characterized in that: The first linear drive and the second linear drive are both electrically connected to the controller.

9. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 7, characterized in that: The locking member is arranged on a side of the flip frame in a horizontal position away from the corresponding box beam.

10. The energy-saving vortex-induced vibration suppression device for split double box girders according to claim 1, characterized in that: The storage battery and the control box are arranged in one-to-one correspondence with each of the solar panels; the control box is arranged on the corresponding box beam, and the storage battery is arranged in the corresponding control box.

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