Angle self-adaptive saddle

Abstract

The invention discloses an angle self-adaptive saddle, and belongs to the technical field of supporting components of cable-stayed bridge cables. Comprising a saddle body, a plurality of telescopic devices and saddle grooves corresponding to the telescopic devices in number. The plurality of telescopic devices are uniformly distributed at intervals along the arc of the saddle main body; the separated saddle grooves are formed in the different telescopic devices respectively, and the multiple separated saddle grooves form an inhaul cable arc-shaped channel. The telescopic device extends or retracts to adjust the positions of different saddle grooves, and then inhaul cable arc-shaped channels of different shapes and angles are formed. The telescopic device for supporting the saddle groove can extend and retract within a certain range and can be fixed at a certain length, so that arc lines in different shapes are formed, the angle of the inhaul cable is adjusted, the influence caused by manufacturing errors is reduced, and the telescopic device has good applicability.

Description

Technical Field

[0001] The invention belongs to the technical field of supporting components of cables of cable-stayed bridges, and in particular relates to an angle-adaptive saddle. Background Art

[0002] Cable-stayed bridges have the characteristics of large spanning capacity, strong adaptability, high rigidity, good wind resistance, economy and beauty, which makes them widely used in bridge design.

[0003] In general, the main tower structure of a cable-stayed bridge has to withstand not only the huge axial force generated by the dead load and live load, but also the bending moment caused by the unbalanced horizontal component of the cable force, in addition to the influence of secondary internal forces caused by temperature changes, wind loads, etc. Among them, the bending moment caused by the unbalanced horizontal component of the cable force may cause excessive stress in the local part of the tower wall; in addition, the cable angle of the cable-stayed bridge will also change with the different facade arrangements of the cable, see Figure 6 shown.

[0004] In cable-stayed bridge structures, except for the straddle saddle anchorage, the other commonly used anchorage forms all need to bear the horizontal force component transmitted by the cables.

[0005] In order to eliminate the impact of the unbalanced horizontal component of cable force on the tower wall and achieve the purpose of installing cables at different angles, the cable tower anchor structure is required to have the following functions:

[0006] Function 1: Able to bear all unbalanced horizontal cable forces or not generate unbalanced horizontal cable forces;

[0007] Function 2: Ability to freely turn within the cable plane to match cables at different angles;

[0008] Currently, there are the following structural forms based on function one;

[0009] The structural form refers to the technology of "A main cable saddle for a space suspension bridge" (publication number CN110029578, publication date July 19, 2019) disclosed in the Chinese patent literature. This technology is a saddle head one and a saddle head two on the base, and the saddle head one has a saddle groove one with an inward concave structure and a curved bottom along the length direction of the saddle head one, which is used to support the main cable, and the saddle head two has a saddle groove two with an inward concave structure and a curved bottom along the length direction of the saddle head two, which is used to support the main cable, and the upper extension line of the width center line of the saddle groove one and the upper extension line of the width center line of the saddle groove two form an acute angle. The present invention has the characteristics of good integrity, compact structure, and small size. Each saddle head of the present invention can support the main cable and guide the steering corresponding to the length, height, and width of the suspension bridge by using the bottom as the main force-bearing surface, and has good force strength and force stability.

[0010] As for function 2,

[0011] At present, according to the existing technology, the cables of cable-stayed bridges generally adopt different angles according to the ratio of tower height to beam span of the bridge, cable arrangement method, etc., and the saddles of conventional cable-stayed bridges usually need to be customized to meet the installation requirements when the cable angles vary greatly. As a result, the applicability of existing conventional cable-stayed bridge saddles is poor. Summary of the invention

[0012] The object of the present invention is to provide an angle-adaptive saddle in view of the above-mentioned deficiencies in the prior art, so as to solve the problem of poor applicability of the existing conventional cable-stayed bridge saddles.

[0013] In order to achieve the above object, the technical solution adopted by the present invention is:

[0014] An angle-adaptive saddle comprises a saddle body, a plurality of telescopic devices and saddle grooves corresponding to the number of the telescopic devices;

[0015] A plurality of the telescopic devices are evenly and spacedly distributed along the arc of the saddle body; each separated saddle groove is respectively arranged on a different telescopic device, and a plurality of separated saddle grooves constitute a cable arc channel; the telescopic device is extended or shortened to adjust the position of different saddle grooves, thereby constituting cable arc channels of different shapes and angles.

[0016] Furthermore, the saddle body includes multiple end plates, multiple fan-shaped plates, a stiffening plate and a base; the multiple fan-shaped plates are fixed on the base at intervals, and the stiffening plates are fixed on the outer plates of the fan-shaped plates; the multiple end plates are fixed to the sides of the multiple fan-shaped plates.

[0017] Furthermore, the stiffening plate is fan-shaped and welded to the outer plate of the fan-shaped plate; the stiffening plate includes a transverse rib and a plurality of quadrilateral vertical ribs; the plurality of quadrilateral vertical ribs are fan-shaped and spaced apart on the transverse rib.

[0018] Furthermore, a plurality of rollers are evenly arranged on the base, and the base is fixedly connected to the bridge tower by bolts.

[0019] Furthermore, a longitudinal stiffening plate is provided between adjacent telescopic devices, and the longitudinal stiffening plate is arranged along the central axis of the saddle body.

[0020] Furthermore, multiple telescopic devices are fixed between two fan-shaped plates; the axes of two adjacent telescopic devices located in the transverse direction are parallel to each other; the axes of multiple telescopic devices located between the two fan-shaped plates coincide with the radius of the fan-shaped plates, and the axes of the telescopic devices evenly divide the central angle of the corresponding fan-shaped plates.

[0021] Furthermore, the telescopic device includes a circular sleeve, two connecting plates and a lifting device; the bottom of the circular sleeve is fixed on the base, the two connecting plates are symmetrically welded to both sides of the circular sleeve, and the lifting device is fixed inside the circular sleeve.

[0022] Furthermore, the saddle groove includes an arc-shaped concave plate and two horizontal plates connected on both sides of the arc-shaped concave plate; the lower surface of each horizontal plate is respectively connected to the free end of a telescopic rod of the jacking device; and the plurality of arc-shaped concave plates constitute the cable arc channel for supporting the cable.

[0023] Furthermore, the angle formed by the extension lines of the upper ends of the width center lines of adjacent arc-shaped inner concave plates is an acute angle.

[0024] The angle-adaptive saddle provided by the present invention has the following beneficial effects:

[0025] The telescopic device for supporting the saddle groove of the present invention can be extended and shortened within a certain range and can be fixed at a certain length to form arcs of different shapes, thereby adjusting the cable angle and reducing the impact of manufacturing errors, and has good applicability.

[0026] The present invention has the characteristics of good integrity, compact structure and small size. Each saddle head (telescopic device) can support and guide the steering of the main cable (cable) corresponding to the length, height and width of the suspension bridge by using the bottom as the main force-bearing surface, and has good force-bearing strength and force stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the angle adaptive saddle of the present invention.

[0028] Figure 2 It is a structural diagram of the saddle main body of the present invention.

[0029] Figure 3 It is a schematic diagram of the telescopic device of the present invention.

[0030] Figure 4 It is a schematic diagram of the separated saddle groove structure of the present invention.

[0031] Figure 5 Schematic diagram of the cable length and angle error of the present invention.

[0032] Figure 6 This is a cable-stayed facade arrangement method in the prior art.

[0033] Figure 7 It is a three-dimensional view of the angle adaptive saddle of the present invention.

[0034] Figure 81. Multi-angle views of the angle-adaptive saddle of the present invention.

[0035] Fig. 9 This is a diagram of the length fixing device of the angle-adaptive saddle after extension and retraction of the present invention.

[0036] Fig.10 This is a detailed diagram of the device for fixing the length of the angle-adaptive saddle after extension and retraction according to the present invention.

[0037] Among them, 1. Cable; 2. Saddle body; 3. End plate; 4. Fan-shaped plate; 5. Stiffening plate; 6. Base; 7. Round sleeve; 8. Telescopic device; 9. Saddle groove; 10. Connecting plate; 11. Bolt; 12. Pad; 13. Telescopic rod. DETAILED DESCRIPTION

[0038] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0039] Example 1

[0040] This embodiment provides an angle-adaptive saddle, referring to Figure 1 , Figure 7 and Figure 8 , which specifically include:

[0041] A saddle body 2, a plurality of telescopic devices 8 and saddle slots 9 corresponding to the number of the telescopic devices 8;

[0042] refer to Figure 2 A plurality of telescopic devices 8 are evenly and spacedly distributed along the arc of the saddle body 2, each separated saddle groove 9 is respectively arranged on a different telescopic device 8, and a plurality of separated saddle grooves 9 constitute an arc-shaped channel for the cable 1. The telescopic device 8 is extended or shortened to adjust the position of different saddle grooves 9, thereby constituting arc-shaped channels for the cable 1 of different shapes and angles, which are used to support the cable 1, and can adjust the angle of the cable 1 and reduce the influence of manufacturing errors, and has good applicability.

[0043] Specifically, the saddle body 2 includes multiple end plates 3, multiple fan-shaped plates 4, a stiffening plate 5 and a base 6; the multiple fan-shaped plates 4 are fixed on the base 6 at intervals, and the stiffening plates 5 are fixed on the outer plates of the fan-shaped plates 4; the multiple end plates 3 are fixed to the sides of the multiple fan-shaped plates 4.

[0044] Among them, reference Figure 2The number of the sector plates 4 can be determined according to specific engineering requirements. As a preferred embodiment of the present invention, the number of the sector plates 4 is preferably three, and the three sector plates 4 are fixed on the base 6 at intervals.

[0045] refer to Figure 2 The stiffening plate 5 is fan-shaped and welded to the outer plate of the fan-shaped plate 4 to strengthen the support for the fan-shaped plate 4.

[0046] Specifically, the stiffening plate 5 includes a transverse rib and a plurality of quadrilateral vertical ribs; the plurality of quadrilateral vertical ribs are distributed on the transverse rib in a fan-shaped manner at intervals.

[0047] In the specific setting, the quadrilateral vertical ribs should be arranged in the same position and direction as the telescopic device 8 plate; multiple transverse ribs can be set according to actual conditions.

[0048] In this embodiment, a plurality of rollers are evenly arranged on the base 6, and the base 6 is fixedly connected to the bridge tower by bolts.

[0049] refer to Figure 2 The number of telescopic devices 8 in this embodiment can be set according to the actual size of the cable force, wherein a plurality of telescopic devices 8 are fixed between the two fan-shaped plates 4, and a longitudinal stiffening plate 5 is arranged between adjacent telescopic devices 8, and the longitudinal stiffening plate 5 is arranged along the central axis of the saddle body 2.

[0050] Specifically, the axes of two adjacent telescopic devices 8 located in the transverse direction are parallel to each other; the axes of multiple telescopic devices 8 located between two sector plates 4 coincide with the radius of the sector plate 4 , and the axes of the telescopic devices 8 evenly divide the central angle of the corresponding sector plate 4 .

[0051] refer to Figure 3 The telescopic device 8 includes a circular sleeve 7, two connecting plates and a jacking device; the bottom of the circular sleeve 7 is fixed on the base 6, the two connecting plates are symmetrically welded on both sides of the circular sleeve 7, and the jacking device is fixed inside the circular sleeve 7.

[0052] The lifting device of this embodiment is an existing mature technology, preferably a hydraulic jack, which has the characteristics of high-precision synchronization, strong load-bearing capacity, and strong anti-eccentric load capability, and can also be intelligently managed and monitored in real time.

[0053] During specific operation, the telescopic device 8 supporting the saddle groove 9 can be extended and shortened within a certain range and can be fixed at a certain length, thereby forming arcs of different shapes to adapt to the cables 1 at different angles.

[0054] refer to Fig. 9 and Fig.10When adjusting the telescopic rod 13 of the telescopic device 8 to lengthen or shorten, the bolt 11 on the connecting plate 10 can be loosened, and the separate pad 12 of corresponding thickness can be removed or added according to the adjusted length, and then the bolt 11 can be installed in place to complete the length adjustment.

[0055] refer to Figure 4 The saddle groove 9 includes an arc-shaped concave plate and two horizontal plates connected on both sides of the arc-shaped concave plate; the inner surface of the arc-shaped concave plate is a smooth curved surface; the angle formed by the extended lines of the upper ends of the width center lines of adjacent arc-shaped concave plates is an acute angle.

[0056] The lower surface of each horizontal plate is connected to the free end of a telescopic rod of a jacking device, and a plurality of arc-shaped concave plates form an arc-shaped channel for the cable 1 for supporting the cable 1.

[0057] During specific operations, the separate saddle groove 9 is fixed on the telescopic device 8, and the cable 1 is placed on the saddle groove 9, so that the cable force is transmitted to the saddle seat, and the saddle groove 9 can move with the telescopic rod of the telescopic device 8, and then the shape of the saddle surface formed by the bottom of the separate saddle groove 9 can be adjusted, that is, by adjusting the length of the telescopic rod, the bottom of the separate saddle groove 9 can form an adaptive arc surface, which can meet the placement requirements of different cables 1.

[0058] The length and angle error of the adjustment cable 1 in this embodiment are as follows:

[0059] refer to Figure 5 When there is an error in the angle and length of the cable 1, the radius R of the arc surface of the bottom plate of the separate saddle groove 9 will change to R1, and each telescopic rod can adjust the length (R1-R) to eliminate the error.

[0060] Although the specific implementation of the invention is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. An angle-adaptive saddle, characterized in that: It includes a saddle body, a plurality of telescopic devices and saddle grooves corresponding to the number of the telescopic devices; A plurality of the telescopic devices are evenly and spacedly distributed along the arc of the saddle body; each of the separated saddle grooves is respectively arranged on a different telescopic device, and a plurality of the separated saddle grooves constitute an arc-shaped cable channel; The telescopic device is extended or shortened to adjust the positions of different saddle grooves, thereby forming cable arc channels of different shapes and angles.

2. The angle adaptive saddle according to claim 1, characterized in that: The saddle body includes a plurality of end plates, a plurality of fan-shaped plates, a stiffening plate and a base; the plurality of fan-shaped plates are fixed on the base at intervals, and a stiffening plate is fixed on the outer side plates of the fan-shaped plates; and the plurality of end plates are fixed on the side surfaces of the plurality of fan-shaped plates.

3. The angle adaptive saddle according to claim 2, characterized in that: The stiffening plate is fan-shaped and welded to the outer plate of the fan-shaped plate; the stiffening plate includes a transverse rib plate and a plurality of quadrilateral vertical rib plates; the plurality of quadrilateral vertical rib plates are fan-shaped and spaced apart on the transverse rib plate.

4. The angle adaptive saddle according to claim 2, characterized in that: A plurality of rollers are evenly arranged on the base, and the base is fixedly connected to the bridge tower through bolts.

5. The angle adaptive saddle according to claim 1, characterized in that: A longitudinal stiffening plate is arranged between adjacent telescopic devices and is arranged along the central axis of the saddle body.

6. The angle adaptive saddle according to claim 5, characterized in that: Multiple telescopic devices are fixed between two fan-shaped plates; the axes of two adjacent telescopic devices located in the transverse direction are parallel to each other; the axes of multiple telescopic devices located between the two fan-shaped plates coincide with the radius of the fan-shaped plates, and the axes of the telescopic devices evenly divide the central angle of the corresponding fan-shaped plates.

7. The angle adaptive saddle according to claim 6, characterized in that: The telescopic device comprises a circular sleeve, two connecting plates and a lifting device; the bottom of the circular sleeve is fixed on the base, the two connecting plates are symmetrically welded to the two sides of the circular sleeve, and the lifting device is fixed inside the circular sleeve.

8. The angle adaptive saddle according to claim 7, characterized in that: The saddle groove includes an arc-shaped concave plate and two transverse plates connected to both sides of the arc-shaped concave plate; the lower surface of each transverse plate is respectively connected to the free end of a telescopic rod of the jacking device; multiple arc-shaped concave plates constitute the cable arc channel for supporting the cable.

9. The angle adaptive saddle according to claim 8, characterized in that: The angle formed by the extended lines of the upper ends of the width center lines of adjacent arc-shaped inner concave plates is an acute angle.

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