Deck type arch bridge static wind load separation measurement test device

Abstract

The invention discloses a deck type arch bridge static wind load separation measurement test device, and belongs to the technical field of bridge detection, the deck type arch bridge static wind load separation measurement test device comprises a support plate, a support frame, an arch rib force measurement mechanism, a stand column force measurement mechanism and a bridge floor force measurement mechanism, and the support plate is supported on the ground through a support block; the arch rib force measuring mechanism is supported on the supporting plate, and the stand column force measuring mechanism is supported on the supporting frame and located on one side of the convex face of the arch rib section. The bridge deck force measuring mechanism is supported on the supporting frame and located on the side, away from the arch rib section, of the stand column force measuring mechanism. The device is simple in structure, convenient to use and high in universality, and all measuring parts are not connected with one another, so that adverse factors such as turbulent flow and eddy current in the testing process can be reduced on the premise that the complete aerodynamic configuration of the arch bridge is guaranteed. And independent force measurement is carried out on the arch rib sections, the arch bridge stand columns and the bridge deck slab, so that the influence of pneumatic interference among components on a measurement result is thoroughly eliminated, and the accuracy and reliability of data are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge detection, and in particular relates to a static wind load separation measurement test device for a top-bearing arch bridge. Background Art

[0002] Wind in nature has turbulent characteristics, and its effects on bridges can be divided into two aspects: static effects and dynamic effects. The static effect is the internal force and deformation generated by the bridge under the action of static wind load. Its basic mechanism of action is the lift, drag and torque generated by the static wind pressure of the average wind, that is, the effect of the static three-force. In addition to the average wind, there is also pulsating wind that fluctuates randomly around the average wind. When the wind bypasses the bridge structure, vortices and flow separation will be generated, forming complex air forces. This force will cause the bridge to vibrate (wind-induced vibration), and the vibrating bridge will in turn affect the flow field, change the air force, and cause the interaction mechanism between wind and structure. This is the dynamic effect of wind on the bridge. Since static wind loads are often the controlling design loads of large-span bridges, the static three-force is an important parameter to describe the stress state of the bridge structure under wind loads. When other conditions are the same, the static wind loads of two sections with similar shapes are proportional to their characteristic dimensions, so a set of dimensionless coefficients (i.e., static three-force coefficients) can be introduced to describe the static wind loads with the same cross-sectional shape. my country's "Highway Bridge Wind Resistance Design Code JTG / T 3360-01-2018" stipulates that bridge structures can be subjected to static aerodynamic tests in wind tunnels, and segment models with a certain scale ratio can be made, and their static three-force coefficients can be measured through rigid model force measurement tests; then, based on the geometric similarity criterion, the static wind load acting on the actual bridge can be obtained.

[0003] When crossing mountainous and canyon environments, long-span arch bridges have gradually become the key bridge type of choice due to their advantages such as high structural rigidity, good economy, light transportation weight, and strong adaptability in mountainous areas. For the top-bearing arch bridge among the long-span arch bridges, it is the most common type of arch bridge in mountainous areas. Most top-bearing arch bridges are composed of three parts: bridge deck, columns, and arch ribs. When the wind flows through the top-bearing arch bridge, it will form its own flow field on the bridge deck, columns, and arch ring, and interfere with each other, which will have different degrees of influence on the static wind loads on different components, resulting in complex aerodynamic interference phenomena, which makes the static wind loads on the three groups of components significantly different. On the other hand, the wind attack angle is the angle between the wind flow direction and the bridge section. When the wind attack angle changes, the aerodynamic interference phenomenon between different components of the top-bearing arch bridge will be more significant, and the static wind load of the measured component will be more affected by other components. However, the traditional static wind load measuring device can only obtain the static wind load of a single component or the overall model of the top-supported arch bridge, and cannot measure the static wind load of the measured component under the aerodynamic interference of the other two groups of components, which is not conducive to the subsequent static wind stability analysis. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a static wind load separation measurement test device for a top-supported arch bridge, which has a simple structure and is easy to use, and can better improve the above-mentioned problems.

[0005] The embodiment of the present invention is achieved as follows:

[0006] The embodiment of the present invention provides a static wind load separation measurement test device for a deck arch bridge, comprising a support plate, a support frame, an arch rib force measuring mechanism, a column force measuring mechanism and a bridge deck force measuring mechanism.

[0007] The support plate is supported on the ground by support blocks;

[0008] The arch rib force measuring mechanism includes a bottom-supported force measuring balance, an arch rib segment, an arch rib force transmission plate, an arch rib force transmission rod, an arch rib support seat and an arch rib fixing rod. The bottom-supported force measuring balance is arranged on the support plate, the arch rib force transmission plate is supported on the bottom-supported force measuring balance, the support frame is supported on the support plate and is located above the arch rib force transmission plate, the arch rib support seat is arranged on the upper side of the support frame, the number of the arch rib segments is multiple, one of which is an arch rib force measuring segment, and the rest are arch ribs. The compensating segment, the arch rib force measuring segment is supported on the arch rib force transmission plate through the arch rib force transmission rod, the arch rib compensation segments are sequentially connected as one body and supported by the arch rib fixing rod to be suspended above or below the arch rib force measuring segment, or some of the arch rib compensation segments are sequentially connected as one body and supported on the arch rib support seat and located below the arch rib force measuring segment, and the remaining arch rib compensation segments are sequentially connected as one body and supported by the arch rib fixing rod to be above the arch rib force measuring segment;

[0009] The column force measuring mechanism is supported by the support frame and is located on the convex side of the arch rib segment;

[0010] The bridge deck force measuring mechanism is supported on the support frame and is located on a side of the column force measuring mechanism away from the arch rib segment.

[0011] Furthermore, a slide rail is provided on the upper surface of the support plate, and the number of the slide rails is two and distributed on both sides of the support frame.

[0012] Furthermore, the upper end of the arch rib fixing rod is connected to the arch rib compensation segment, and the lower end is slidably connected to the slide rail via an arch rib sliding seat.

[0013] Furthermore, pads are provided at both ends of the slide rail, and both ends of the slide rail and the support frame are supported on the pads.

[0014] Furthermore, the column force measuring mechanism includes a six-component strain balance, an arch bridge column, a column force transfer rod, a column force transfer plate and a column pad. The column pad is arranged on the support frame, and the column force transfer plate is supported on the column pad through the six-component strain balance. The lower end of the column force transfer rod is connected to the column force transfer plate, and the arch bridge column is arranged at the upper end of the column force transfer rod.

[0015] Furthermore, a column force transmission rod is provided on both sides of each of the arch bridge columns.

[0016] Furthermore, the bridge deck force measuring mechanism includes a bottom-supported five-component strain balance, a bridge deck, a bridge deck force transmission rod, a bridge deck support column, a bridge deck fixing rod, and a bridge deck pad. The bridge deck is composed of multiple pieces, one of which is a bridge deck force measuring section, and the rest are bridge deck compensation sections. The bridge deck pad is arranged on the support frame, and the bottom-supported five-component strain balance is arranged on the bridge deck pad. The lower end of the bridge deck force transmission rod is connected to the bottom-supported five-component strain balance, and the upper end is connected to the bridge deck force measuring section. All of the bridge deck compensation sections are supported above or below the bridge deck force measuring section through the bridge deck fixing rod, or part of the bridge deck compensation sections are supported above the bridge deck force measuring section through the bridge deck fixing rod, and the remaining bridge deck compensation sections are supported below the bridge deck force measuring section through the bridge deck support column.

[0017] Furthermore, the bridge deck fixing rods are distributed on both sides of the bridge deck in the width direction, the upper ends of the bridge deck fixing rods are connected to the bridge deck compensation section, and the lower ends are slidably connected to the slide rails through bridge deck slide seats.

[0018] Furthermore, the test device also includes a diagonal strut and a fixed hanger block, wherein the fixed hanger block is supported above the arch rib segment through the diagonal strut, the lower end of the diagonal strut is fixed to the ground, and the fixed hanger block is also connected to the bridge deck compensation segment and the arch rib compensation segment at the top.

[0019] The beneficial effects of the present invention are:

[0020] The static wind load separation measurement test device for the top-supported arch bridge provided by the embodiment of the present invention has a simple structure, is easy to use, and has strong versatility. The measuring components of the present invention are not connected to each other, which helps to reduce adverse factors such as turbulence and eddy currents during the test while ensuring the complete aerodynamic shape of the arch bridge, and can also achieve a comprehensive wind resistance analysis of the coordinated force characteristics of multiple components. In addition, the independent force measurement of the arch rib segments, arch bridge columns, and bridge decks completely eliminates the influence of aerodynamic interference between components on the measurement results, thereby greatly improving the accuracy and reliability of the data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of a static wind load separation measurement test device for a deck arch bridge provided in an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of the structure of the support assembly;

[0024] Figure 3 It is a structural schematic diagram of the arch rib force measuring mechanism;

[0025] Figure 4 It is a structural schematic diagram of the column force measuring mechanism;

[0026] Figure 5 It is a structural schematic diagram of the bridge deck force measuring mechanism.

[0027] In the figure: 1-support plate; 11-support block; 12-slide rail; 13-pad; 2-support frame; 3-arch rib force measuring mechanism; 31-bottom-supported force measuring balance; 32-arch rib segment; 321-arch rib force measuring segment; 322-arch rib compensation segment; 33-arch rib force transmission plate; 34-arch rib force transmission rod; 35-arch rib support seat; 36-arch rib fixing rod; 37-arch rib slide seat; 4-column force measuring mechanism; 41-six-component strain Balance; 42-arch bridge column; 43-column force transmission rod; 44-column force transmission plate; 45-column pad; 5-bridge deck force measuring mechanism; 51-bottom-supported five-component strain balance; 52-bridge deck; 521-bridge deck force measuring section; 522-bridge deck compensation section; 53-bridge deck force transmission rod; 54-bridge deck supporting column; 55-bridge deck fixing rod; 56-bridge deck pad; 57-bridge deck slide; 61-diagonal brace; 62-fixed hanger block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the 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.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the invention is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] refer to Figure 1 As shown, an embodiment of the present invention provides a static wind load separation measurement test device for a top-supported arch bridge, including a support plate 1, a support frame 2, an arch rib force measuring mechanism 3, a column force measuring mechanism 4 and a bridge deck force measuring mechanism 5.

[0035] refer to Figure 2As shown, the support plate 1 is supported on the ground by support blocks 11, and the support blocks 11 are distributed around the support plate 1, so that the support plate 1 is kept at a certain distance from the bottom ground of the wind tunnel, avoiding the boundary layer effect of the wind, optimizing the flow field distribution in the test area, and being closer to the real wind field. The support plate 1 is rotatably connected to the support blocks 11, so that the support plate 1 can rotate, thereby realizing the change of the wind attack angle, so as to test the aerodynamic force under different working conditions. In this embodiment, the support plate 1 is processed into a circular structure. Of course, the support plate 1 can also be processed into other shapes such as a rectangle or a hexagon.

[0036] The upper surface of the support plate 1 is also provided with a slide rail 12, and there are two slide rails 12 that are distributed in parallel and at intervals. Of course, pads 13 can also be set at both ends of the slide rail 12. The slide rail 12 is supported on the pads 13, and both ends of the support frame 2 are also supported on the pads 13 and are located between the two slide rails 12.

[0037] refer to Figure 2 and 3 As shown, the arch rib force measuring mechanism 3 includes a bottom-supported force measuring balance 31 , an arch rib segment 32 , an arch rib force transmission plate 33 , an arch rib force transmission rod 34 , an arch rib support seat 35 and an arch rib fixing rod 36 .

[0038] The bottom-supported force measuring balance 31 is arranged on the support plate 1 and is located below the support frame 2. The arch rib force transmission plate 33 is supported on the bottom-supported force measuring balance 31 and is located below the support frame 2. There is a gap between the support frame 2 and the arch rib force transmission plate 33. The length direction of the arch rib force transmission plate 33 is consistent with the length direction of the slide rail 12. The arch rib support seat 35 is arranged on the upper side of the support frame 2.

[0039] There are multiple arch rib segments 32, one of which is an arch rib force measuring segment 321, and the rest are arch rib compensation segments 322. The multiple arch rib segments 32 can be sequentially spliced ​​together to form a half arch body, or they can be arranged as independent segments, or some segments can be spliced ​​together as needed. When the lowest section is the arch rib force measuring segment 321, the upper end of the arch rib force transmission rod 34 is connected to the arch rib force measuring segment 321, and the lower end of the arch rib force transmission rod 34 is connected to the arch rib force transmission plate 33, so that the arch rib force measuring segment 321 can transmit the force to the arch rib force transmission plate 33 through the arch rib force transmission rod 34, and then transmit it to the bottom support force measuring balance 31 through the arch rib force transmission plate 33, so as to measure the static three-point force of the arch rib force measuring segment 321. At the same time, the arch rib compensation The compensation segments 322 are connected as a whole in sequence and are supported by the arch rib fixing rod 36 and suspended above the arch rib force measuring segment 321 to act as a compensation model. The upper end of the arch rib fixing rod 36 is connected to the arch rib compensation segment 322, and the lower end is slidably connected to the slide rail 12 through the arch rib slide 37, so that it is convenient to adjust the position of the arch rib fixing rod 36. The lower end of the arch rib fixing rod 36 is hinged to the arch rib slide 37, and there is no contact between the arch rib compensation segment 322 and the arch rib force measuring segment 321. When the middle section is the arch rib force measuring segment 321, the arch rib force measuring segment 321 is supported on the arch rib force transfer plate 33 through the arch rib force transfer rod 34. At the same time, some arch rib compensation segments 322 are connected in sequence as a whole and supported on the arch rib support seat 35 and are located below the arch rib force measuring segment 321 to act as a compensation model. The remaining arch rib compensation segments 322 are connected in sequence as a whole and supported by the arch rib fixing rod 36 to be suspended above the arch rib force measuring segment 321 to act as a compensation model. There is no contact between the arch rib force measuring segment 321 and the arch rib compensation segments 322 above and below it. When the uppermost section is the arch rib force measuring segment 321, the arch rib force measuring segment 321 is supported on the arch rib force transmission plate 33 through the arch rib force transmission rod 34. At the same time, all the arch rib compensation segments 322 are sequentially connected as one body and supported on the arch rib support seat 35 and located below the arch rib force measuring segment 321 to act as a compensation model. The arch rib force measuring segment 321 and the upper and lower arch rib compensation segments 322 are not in contact. Of course, part or all of the arch rib segments 32 can also be connected as one body and supported on the arch rib force transmission plate 33 through the arch rib force transmission rod 34, so that the overall static three-part force can be measured.

[0040] The lengths of the arch rib force transmission rods 34 and the arch rib fixing rods 36 can be adjusted as required.

[0041] refer to Figure 4As shown, the column force measuring mechanism 4 includes a six-component strain balance 41, an arch bridge column 42, a column force transmission rod 43, a column force transmission plate 44 and a column pad 45. The column pad 45 is arranged on the support frame 2, the six-component strain balance 41 is arranged on the column pad 45, the column force transmission plate 44 is supported on the six-component strain balance 41, the lower end of the column force transmission rod 43 is connected to the column force transmission plate 44, the arch bridge column 42 is arranged on the upper end of the column force transmission rod 43, the column force transmission rod 43 is an L-shaped structure, and a column force transmission rod 43 is respectively arranged on both sides of the arch bridge column 42. The number of arch bridge columns 42 can be two or more, and each arch bridge column 42 is measured independently, so each arch bridge column 42 is supported by two column force transfer rods 43, and each arch bridge column 42 also corresponds to a force measuring assembly consisting of a set of column force transfer plates 44, column pads 45 and a six-component strain balance 41. In this way, each arch bridge column 42 independently measures the static three-force coefficient, avoiding mutual interference between different arch bridge columns 42 and greatly improving the overall measurement accuracy.

[0042] refer to Figure 5 As shown, the bridge deck force measuring mechanism 5 includes a bottom-supported five-component strain balance 51 , a bridge deck 52 , a bridge deck force transmission rod 53 , a bridge deck support column 54 , a bridge deck fixing rod 55 , and a bridge deck pad 56 .

[0043] There are multiple bridge decks 52, one of which is a bridge deck force measuring section 521, and the rest are bridge deck compensation sections 522. The bridge deck pad 56 is arranged on the support frame 2 and is located on the side of the column pad 45 away from the arch rib support seat 35. The bottom-supported five-component strain balance 51 is arranged on the bridge deck pad 56. The lower end of the bridge deck force transmission rod 53 is connected to the bottom-supported five-component strain balance 51, and the upper end is connected to the bridge deck force measuring section 521, so as to measure the static three-component force of the bridge deck force measuring section 521. When the bottommost piece is used as the bridge deck force measuring section 521, the bridge deck compensation section 522 is spliced ​​into one piece in sequence and supported above the bridge deck force measuring section 521 by the bridge deck fixing rod 55 to serve as a compensation model. When the middle piece is used as the bridge deck force measuring section 521, part of the bridge deck compensation section 522 is connected as a whole and supported on the top of the bridge deck force measuring section 521 by the bridge deck fixing rod 55 to serve as a compensation model, and the remaining bridge deck compensation sections 522 are connected as a whole and supported on the bridge deck pad 56 by the bridge deck support column 54, and are located below the bridge deck force measuring section 521 to serve as a compensation model. When the top piece is used as the bridge deck force measuring section 521, the bridge deck compensation sections 522 are spliced ​​into one piece in sequence and supported on the bridge deck pad 56 by the bridge deck support column 54, and are located below the bridge deck force measuring section 521 to serve as a compensation model. During measurement, the bridge deck force measuring section 521 and the bridge deck compensation section 522 do not contact each other. Of course, part or all of the bridge deck 52 can also be connected as a whole, and then connected to the bridge deck force transmission rod 53, so that the overall static three-point force can be measured.

[0044] The lengths of the bridge deck force transmission rod 53 and the bridge deck fixing rod 55 can be adjusted as required.

[0045] The bridge deck fixing rod 55 is distributed on both sides of the bridge deck 52 in the width direction. The upper end of the bridge deck fixing rod 55 is connected to the bridge deck compensation section 522, and the lower end is slidingly connected to the slide rail 12 through the bridge deck slide 57. The lower end of the bridge deck fixing rod 55 is hinged to the bridge deck slide 57.

[0046] A channel is provided in the middle of the bridge deck 52, and the channel runs through both ends of the bridge deck 52 in the length direction. The bridge deck force transmission rod 53 passes through the channel, and the rod diameter of the bridge deck force transmission rod 53 is smaller than the diameter of the channel.

[0047] refer to Figure 1 , 3 The device also includes a diagonal support rod 61 and a fixed hanger block 62. The fixed hanger block 62 is supported above the arch rib segment 32 by the diagonal support rod 61. The lower end of the diagonal support rod 61 is fixed to the ground. If the top arch rib segment 32 is an arch rib compensation segment 322, the fixed hanger block 62 is also connected to the top arch rib compensation segment 322. If the top bridge deck 52 is a bridge deck compensation segment 522, the fixed hanger block 62 is also connected to the top bridge deck compensation segment 522. This can enhance the stability of the arch rib compensation segment 322 and the bridge deck compensation segment 522.

[0048] The measuring components of the present invention are not connected to each other, which helps to reduce adverse factors such as turbulence and eddy currents during the test while ensuring the complete aerodynamic shape of the arch bridge, and can also achieve a comprehensive wind resistance analysis of the coordinated force characteristics of multiple components. In addition, the independent force measurement of the arch rib segment 32, the arch bridge column 42, and the bridge deck 52 completely eliminates the influence of aerodynamic interference between components on the measurement results, thereby greatly improving the accuracy and reliability of the data.

[0049] The device of the present invention breaks through the limitation that traditional static wind force measuring devices can only measure the entire segment of the arch rib. Under the premise of simulating the construction process of the arch rib segment 32 of the top-supported arch bridge, force measurement tests are performed on all the arch rib segments 32 from the arch foot to the arch top in sequence, and a series of innovative technical measures are provided. While measuring the force measuring segments, compensation segments are set to simulate continuous boundary conditions that are closer to the actual bridge structure, thereby effectively eliminating or reducing the influence of the boundary effect on the force measurement results, so as to improve the accuracy of the test results, and provide the actual project with the static three-force coefficient of each arch rib segment 32 under construction conditions. At the same time, after some or all of the arch rib segments 32 are spliced ​​into a whole, their overall static three-force coefficient can be measured.

[0050] The device of the present invention innovatively designs the column force measuring mechanism 4 and the bridge deck 52 force measuring mechanism, and a bridge deck 52 compensation section is provided in the bridge deck 52 force measuring mechanism, so as to more accurately test the static three-part forces of the arch bridge column 42 and the bridge deck 52, and corresponding column force measuring devices can be added according to different numbers of arch bridge columns 42, which can be adapted to other different types of bridge segment model tests.

[0051] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A static wind load separation measurement test device for a deck arch bridge, characterized in that: It includes support plate, support frame, arch rib force measuring mechanism, column force measuring mechanism and bridge deck force measuring mechanism. The support plate is supported on the ground by support blocks; The arch rib force measuring mechanism includes a bottom-supported force measuring balance, an arch rib segment, an arch rib force transmission plate, an arch rib force transmission rod, an arch rib support seat and an arch rib fixing rod. The bottom-supported force measuring balance is arranged on the support plate, the arch rib force transmission plate is supported on the bottom-supported force measuring balance, the support frame is supported on the support plate and is located above the arch rib force transmission plate, the arch rib support seat is arranged on the upper side of the support frame, the number of the arch rib segments is multiple, one of which is an arch rib force measuring segment, and the rest are arch ribs. The compensating segment, the arch rib force measuring segment is supported on the arch rib force transmission plate through the arch rib force transmission rod, the arch rib compensation segments are sequentially connected as one body and supported by the arch rib fixing rod to be suspended above or below the arch rib force measuring segment, or some of the arch rib compensation segments are sequentially connected as one body and supported on the arch rib support seat and located below the arch rib force measuring segment, and the remaining arch rib compensation segments are sequentially connected as one body and supported by the arch rib fixing rod to be above the arch rib force measuring segment; The column force measuring mechanism is supported by the support frame and is located on the convex side of the arch rib segment; The bridge deck force measuring mechanism is supported on the support frame and is located on a side of the column force measuring mechanism away from the arch rib segment.

2. The static wind load separation measurement test device for a deck arch bridge according to claim 1 is characterized in that: The upper surface of the support plate is also provided with slide rails, and the number of the slide rails is two and they are distributed on both sides of the support frame.

3. The static wind load separation measurement test device for a deck arch bridge according to claim 2 is characterized in that: The upper end of the arch rib fixing rod is connected to the arch rib compensation segment, and the lower end is slidably connected to the slide rail through an arch rib sliding seat.

4. The static wind load separation measurement test device for a deck arch bridge according to claim 2 is characterized in that: Cushion strips are arranged at both ends of the slide rail, and both ends of the slide rail and the support frame are supported on the cushion strips.

5. The static wind load separation measurement test device for a deck arch bridge according to claim 1, characterized in that: The column force measuring mechanism includes a six-component strain balance, an arch bridge column, a column force transfer rod, a column force transfer plate and a column pad. The column pad is arranged on the support frame, and the column force transfer plate is supported on the column pad through the six-component strain balance. The lower end of the column force transfer rod is connected to the column force transfer plate, and the arch bridge column is arranged at the upper end of the column force transfer rod.

6. The static wind load separation measurement test device for a deck arch bridge according to claim 5, characterized in that: A column force transmission rod is respectively arranged on both sides of each arch bridge column.

7. The static wind load separation measurement test device for a deck arch bridge according to claim 2, characterized in that: The bridge deck force measuring mechanism includes a bottom-supported five-component strain balance, a bridge deck, a bridge deck force transmission rod, a bridge deck support column, a bridge deck fixing rod, and a bridge deck pad. The number of the bridge deck panels is multiple, one of which is a bridge deck force measuring section, and the rest are bridge deck compensation sections. The bridge deck pad is arranged on the support frame, and the bottom-supported five-component strain balance is arranged on the bridge deck pad. The lower end of the bridge deck force transmission rod is connected to the bottom-supported five-component strain balance, and the upper end is connected to the bridge deck force measuring section. All of the bridge deck compensation sections are supported above or below the bridge deck force measuring section through the bridge deck fixing rod, or part of the bridge deck compensation sections are supported above the bridge deck force measuring section through the bridge deck fixing rod, and the remaining bridge deck compensation sections are supported below the bridge deck force measuring section through the bridge deck support column.

8. The static wind load separation measurement test device for a deck arch bridge according to claim 7, characterized in that: The bridge deck fixing rods are distributed on both sides of the bridge deck in the width direction, the upper ends of the bridge deck fixing rods are connected to the bridge deck compensation sections, and the lower ends are slidably connected to the slide rails via bridge deck slide seats.

9. The static wind load separation measurement test device for a deck arch bridge according to claim 7, characterized in that: The test device also includes a diagonal support rod and a fixed hanger block. The fixed hanger block is supported above the arch rib segment through the diagonal support rod. The lower end of the diagonal support rod is fixed to the ground. The fixed hanger block is also connected to the bridge deck compensation segment and the arch rib compensation segment at the top.

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