Cable clamp-type auxiliary saddle main cable construction device and construction method

Abstract

The present application provides a main cable construction device at a cable-clamp-type auxiliary saddle, including an auxiliary saddle, which includes an auxiliary saddle lower saddle body and an auxiliary saddle upper saddle body. The auxiliary saddle lower saddle body and the auxiliary saddle upper saddle body are spliced to form a cable-clamp structure to clamp the main cable. Auxiliary saddles are provided on both sides of the auxiliary saddle, and the auxiliary saddles are provided with a cable supporting device. The cable supporting device supports the lower side of the outer wall of the main cable. A corbel bracket is provided under the auxiliary saddle, and the corbel bracket is used to connect with the auxiliary tower. A hydraulic jack is provided on the corbel bracket, and the hydraulic jack is used to push the auxiliary saddle, thereby solving the problem of auxiliary cable tightening of the main cable.

Description

Technical Field

[0001] The present invention relates to the field of bridge construction, and in particular to a cable clamp-type auxiliary saddle main cable construction device and a construction method. Background Art

[0002] In recent years, the construction of suspension bridges in my country has been booming. With the continuous advancement of science and technology, and the application of new technologies, processes, and materials, long-span suspension bridges have experienced rapid development. The main cable, as the primary load-bearing component of a suspension bridge structure, is often called the bridge's "lifeline." Therefore, main cable construction is of paramount importance in suspension bridge construction, and the main cable construction process primarily includes main cable erection, cable tensioning, cable clamping and sling installation, and main cable winding. However, with the continuous expansion of suspension bridge spans, some existing main cable construction technologies in my country are no longer sufficient for the construction of ultra-long-span suspension bridges.

[0003] For the extra-long side cables of super-long-span suspension bridges, supporting structures are typically installed at the side spans to meet structural stress and alignment requirements, thereby increasing the overall stiffness of the bridge. Sub-pylons are typically installed at the side spans to transfer the vertical forces of the main cables, often subjecting these sub-pylons to significant pressure. The sub-saddles can be designed as a cable clamp-like device, with the diameter of the clamp equal to the diameter of the main cable in the completed bridge. However, the main cables exhibit an 18%-20% porosity before and after cable tightening. The main cable diameter before tightening is significantly larger than the sub-saddle diameter, making it impossible to directly place all the main cable strands within the sub-saddle during cable installation. Consequently, the main cables experience significant tension in the suspended state, making cable adjustment and tightening operations extremely difficult under such pressure. Currently, my country lacks a suitable main cable installation device and method for the sub-saddles of super-long-span suspension bridges. Therefore, a cable clamp-like device and method for main cable installation at the sub-saddles is urgently needed to address this issue. Summary of the Invention

[0004] The present invention provides a cable clamp-type auxiliary saddle main cable construction device and construction method, which solves the problem of auxiliary cable tightening of the main cable.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a cable-clamp-type main cable construction device at the auxiliary saddle, including an auxiliary saddle, the auxiliary saddle including an auxiliary saddle lower saddle body and an auxiliary saddle upper saddle body, the auxiliary saddle lower saddle body and the auxiliary saddle upper saddle body are spliced to form a cable-clamp-type structure to clamp the main cable, auxiliary saddles are provided on both sides of the auxiliary saddle, the auxiliary saddle is provided with a cable supporting device, the cable supporting device supports the lower side of the outer wall of the main cable, a corbel bracket is provided under the auxiliary saddle, the corbel bracket is used to connect with the auxiliary tower, and a hydraulic jack is provided on the corbel bracket, and the hydraulic jack is used to push the auxiliary saddle.

[0006] In a preferred solution, the cable supporting device is provided with a V-shaped concave structure, and a plurality of cable strand notches are provided on the V-shaped concave structure, and the cable strand notches are used to support the cables of the main cable.

[0007] In the preferred solution, the cable supporting device includes a base plate, on which are provided a plurality of vertically parallel vertical plates, with slide groove gaps between each vertical plate, and a plurality of sliding supports, which are symmetrically arranged on the two inclined surfaces of each V-shaped supporting surface, and the sliding supports are provided with a lower inclined surface and a lower extending slide plate, the lower inclined surface is inserted into the slide groove gap, the vertical plate is provided with a V-shaped supporting surface, the lower extending slide plate slides against the V-shaped supporting surface, the sliding support plate is provided with an inner inclined surface, and the cable strand groove is provided on the inner inclined surface.

[0008] In the preferred solution, multiple centering constraint groups are included, and the centering constraint group includes at least two sliding pallets. The cable grooves on the sliding pallets in the same centering constraint group are arranged symmetrically about the center line of the base plate. A transmission assembly is provided between the sliding pallets in the same centering constraint group to enable the two sliding pallets to move synchronously and in a centering manner.

[0009] In the preferred scheme, the centering constraint group includes a center constraint group and a side constraint group. The center constraint group includes a gear shaft rotatably connected to the base plate, a wide gear is sleeved on the gear shaft, and the lower sliding plate of the sliding tray is provided with a rack, and the two racks are respectively engaged with the same wide gear; the side constraint group includes at least two gear shafts rotatably connected to the base plate, each gear shaft has a wide gear and a transmission wheel at both ends, and also includes a transmission belt, the two ends of the transmission belt are respectively connected to each transmission wheel, and the lower sliding plate of each sliding tray is provided with a rack, and each rack is respectively engaged with each wide gear.

[0010] In the preferred solution, a first diversion block is further provided on both sides of the cable support device, the first diversion block is provided with a first diversion block main channel and multiple first diversion block diversion channels connected to the first diversion block main channel, one end of the first diversion block main channel is for air or liquid intake, and each first diversion block diversion channel is provided with a retractable sliding push rod, and the end of each sliding push rod abuts against each sliding support plate.

[0011] In the preferred embodiment, a second diversion block is further provided, in which a second diversion block main channel and multiple second diversion block diversion channels connected to the second diversion block main channel are provided. Each second diversion block diversion channel is connected to one end of the first diversion block main channel, and one end of the second diversion block main channel is for intake of air or liquid.

[0012] In a preferred solution, a plurality of folding structures are provided in the cable strand notch.

[0013] The preferred solution includes a construction method,

[0014] After the auxiliary tower is built, the bracket bracket is built along the side wall of the auxiliary tower to form a working platform, and the auxiliary saddle is assembled;

[0015] Pre-lift the main cable to the set height to complete the main cable installation and cable tightening operations;

[0016] The operator installs the lower saddle body of the auxiliary saddle;

[0017] The side span main cable is lowered into the lower saddle body of the auxiliary saddle by driving the hydraulic jack of the auxiliary saddle and the auxiliary saddle is separated from the main cable;

[0018] The operator installs the upper saddle body of the auxiliary saddle, fixes the upper saddle body and the lower saddle body of the auxiliary saddle, and then removes the auxiliary saddle.

[0019] The present invention has the following beneficial effects: it is suitable for main cable installation at the secondary saddle of a super-large side-span suspension bridge. Its construction method is simple, with minimal construction difficulty and low risk, avoiding the risks of excessive tower deviation and cable strand slippage caused by pre-deflection of the saddle. It also boasts high construction speed, a short construction cycle, reduced construction time, and excellent overall economic benefits, avoiding the extended construction period caused by the subsequent installation of the secondary tower. The designed construction device is not only quick to install and dismantle, safe and reliable, but also capable of automatically adjusting the main cable position, improving construction safety and ensuring worker efficiency. Cable strand notches are independently provided on each sliding support plate to facilitate follow-up during cable tightening, and synchronous centering is used to prevent main cable position shifting before and after cable tightening, reducing requirements for the secondary saddle installation position and simplifying construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 It is the layout diagram of the auxiliary saddle of the present invention.

[0022] Figure 2 It is a side view of the left auxiliary saddle of the present invention.

[0023] Figure 3 It is a side view of the right auxiliary saddle of the present invention.

[0024] Figure 4 It is a large-scale drawing of the auxiliary saddle notch of the present invention.

[0025] Figure 5 It is a diagram of the steps of building a corbel support platform and an auxiliary saddle according to the present invention.

[0026] Figure 6 This is a diagram of the steps of installing and tightening the main cable at the auxiliary saddle of the present invention.

[0027] Figure 7 It is a step diagram of installing the lower saddle body of the auxiliary cable saddle according to the present invention.

[0028] Figure 8 This is a diagram of the steps for slowly lowering the main cable of the present invention.

[0029] Figure 9 It is a step diagram of installing the saddle body and removing the auxiliary cable saddle according to the present invention.

[0030] Figure 10It is a schematic diagram of the contact between the cable strand and the cable strand notch of the present invention.

[0031] Figure 11 It is a side view of the cable supporting device of the present invention.

[0032] Figure 12 It is a top view of the cable supporting device of the present invention.

[0033] Figure 13 It is a structural diagram of the cable supporting device of the present invention.

[0034] Figure 14 It is a bottom view of the cable supporting device of the present invention.

[0035] Figure 15 It is a diagram of the internal structure of the cable supporting device of the present invention.

[0036] In the figure: main cable 1 before entering the saddle; main cable 2 after entering the saddle; auxiliary saddle 3; auxiliary saddle 4; bracket 5; auxiliary tower 6; hydraulic jack 7; cable strand notch 8; folding structure 801; auxiliary saddle lower saddle body 9; auxiliary saddle upper saddle body 10; cable strand 11; cable support device 12; base plate 1201; vertical plate 1202; sliding support plate 1203; V-shaped supporting surface 1204; lower inclined surface 1205; downward extending slide 1 206; inner bevel 1207; hollow portion 1208; rack 1209; wide gear 1210; gear shaft 1211; transmission wheel 1212; transmission belt 1213; first diverter block 13; first diverter block main channel 1301; first diverter block diverter channel 1302; sliding push rod 1303; second diverter block 14; second diverter block main channel 1401; second diverter block diverter channel 1402. DETAILED DESCRIPTION

[0037] like Figure 1-15 In the invention, a main cable construction device at a cable-clamp-type auxiliary saddle is provided, comprising an auxiliary saddle 3, which comprises an auxiliary saddle lower saddle body 9 and an auxiliary saddle upper saddle body 10. The auxiliary saddle lower saddle body 9 and the auxiliary saddle upper saddle body 10 are spliced to form a cable-clamp structure to clamp the main cable. Auxiliary saddles 4 are provided on both sides of the auxiliary saddle 3. The auxiliary saddle 4 is provided with a cable supporting device 12. The cable supporting device 12 supports the lower side of the outer wall of the main cable. A corbel bracket 5 is provided under the auxiliary saddle 4. The corbel bracket 5 is used to connect with the auxiliary tower 6. A hydraulic jack 7 is provided on the corbel bracket 5. The hydraulic jack 7 is used to push the auxiliary saddle 4.

[0038] The auxiliary saddle 4 includes a left auxiliary saddle and a right auxiliary saddle, both of which are made of welded frames. The left auxiliary saddle and the right auxiliary saddle have different heights according to the inclination angle of the main cable.

[0039] In a preferred solution, the cable supporting device 12 is provided with a V-shaped concave structure, and a plurality of cable strand notches 8 are provided on the V-shaped concave structure. The cable strand notches 8 are used to support the cables 11 of the main cable.

[0040] The width of the upper opening of the V-shaped concave structure is slightly larger than the diameter of the main cable before tightening, so the main cable can be placed in the V-shaped concave structure.

[0041] Multiple cable strands 11 are arranged in a hexagonal shape, and multiple strands 11 are arranged in a hexagonal shape to form a main cable. The strands 11 at the lower end of the main cable are placed in the strand grooves 8, which can evenly distribute the strands 11 and limit the lateral displacement of a single strand 11, thereby preventing the main cable from moving excessively laterally in the auxiliary saddle 4.

[0042] The primary function of the auxiliary saddle 4 is to support the main cable's overhanging position before tightening, preventing excessive tension in the main cable strands 11 during tightening, leading to local deformation or excessive gaps between strands 11. The strand notches 8 are designed to evenly distribute the strands 11 and limit lateral displacement of the main cable during loosening. However, during tightening, the strands 11 must converge inward. The strands 11 at the lower end of the main cable, restricted by the strand notches 8, cannot fully converge. Subsequently, when the main cable is placed within the lower saddle body 9 of the auxiliary saddle, the strands 11 undergo partial deformation, resulting in localized unevenness and overall out-of-roundness, affecting the overall stress response.

[0043] Therefore, in the preferred scheme, the cable supporting device 12 includes a base plate 1201, on which are provided a plurality of vertically parallel vertical plates 1202, with slide groove gaps between each vertical plate 1202, and a plurality of sliding supports 1203, the sliding supports 1203 being staggered and symmetrically arranged on the two inclined surfaces of each V-shaped supporting surface 1204, the sliding supports 1203 being provided with a lower inclined surface 1205 and a downwardly extending slide plate 1206, the lower inclined surface 1205 being inserted into the slide groove gap, the vertical plate 1202 being provided with a V-shaped supporting surface 1204, the downwardly extending slide plate 1206 being against the V-shaped supporting surface 1204 and sliding, the sliding support plate 1203 being provided with an inner inclined surface 1207, and the cable strand groove 8 being provided on the inner inclined surface 1207.

[0044] Different sliding pallets 1203 are inserted into different slots. The cable notches 8 of each sliding pallet 1203 are independently positioned at different locations on its inner inclined surface 1207. The staggered symmetrical arrangement of the sliding pallets 1203 means that the multiple sliding pallets 1203 are divided into two groups: one group is located on the left inclined surface of the V-shaped support surface 1204, and the other group is located on the right inclined surface. However, the two groups are staggered by one slot gap. Therefore, the sliding of the sliding pallets 1203 does not interfere with each other. When viewed from the side, the cable notches 8 form a V-shaped symmetrical arrangement.

[0045] When tightening the cable, the strand notches 8 are independently arranged and do not interfere with each other. The strands 11 at the lower end of the main cable can move freely laterally according to the tension of the main cable. The blocking pieces on both sides of the strand notches 8 can be made as thin as possible, so that the distance between the strands 11 can be minimized, almost to a completely fitted state.

[0046] In the preferred embodiment, multiple centering constraint groups are included, each centering constraint group includes at least two sliding pallets 1203, the cable grooves 8 on the sliding pallets 1203 in the same centering constraint group are arranged symmetrically about the center line of the base plate 1201, and a transmission assembly is provided between the sliding pallets 1203 in the same centering constraint group to enable the two sliding pallets 1203 to move synchronously in centering.

[0047] In the preferred embodiment, the centering constraint group includes a center constraint group and a side constraint group. The center constraint group includes a gear shaft 1211 rotatably connected to the base plate 1201, and a wide gear 1210 is sleeved on the gear shaft 1211. The lower extending slide 1206 of the sliding tray 1203 is provided with a rack 1209, and the two racks 1209 are respectively engaged with the same wide gear 1210; the side constraint group includes at least two gear shafts 1211 rotatably connected to the base plate 1201, and each gear shaft 1211 has a wide gear 1210 and a transmission wheel 1212 at both ends, and also includes a transmission belt 1213, and the two ends of the transmission belt 1213 are respectively connected to each transmission wheel 1212, and the lower extending slide 1206 of each sliding tray 1203 is provided with a rack 1209, and each rack 1209 is respectively engaged with each wide gear 1210.

[0048] In order to avoid interference between the transmission belts 1213 of each side constraint group, the diameter of the transmission wheels 1212 in each side constraint group close to the center constraint group is small, and the diameter of the transmission wheels 1212 farther away gradually increases.

[0049] Because the sliding supports 1203 in the same group move synchronously and in a centered manner, during cable tightening, the strands 11 at the auxiliary saddle 4 are driven by the strands 11 whose bottom ends are embedded in the strand notches 8, and are centered and tightened. This prevents free movement and uneven distribution of the main cable strands 11 after cable tightening. Furthermore, due to this centered tightening, the main cable position does not shift laterally before and after cable tightening, and the position of the auxiliary saddle's lower saddle body 9 does not need to be adjusted accordingly, reducing the difficulty of installation.

[0050] Because there are at least two auxiliary saddles 4, there are at least two cable support devices 12. Each cable strand 11 has at least one location on both sides of the auxiliary saddle lower saddle body 9 for insertion into the cable strand notch 8. Multiple cable support devices 12 can be placed side by side on a single auxiliary saddle 4. This means that each cable strand 11 has at least multiple insertion points on both ends of the auxiliary saddle lower saddle body 9, providing more reliable lateral restraint on the cable strands 11.

[0051] Since the sliding tray 1203 moves obliquely, the rack 1209 moves horizontally to engage with the wide gear 1210 while moving up or down along the tooth groove. Therefore, the wide gear 1210 needs to be a wider model, and a hollow portion 1208 needs to be opened on the side of the vertical plate 1202 to prevent the vertical plate 1202 from interfering with the rack 1209.

[0052] Since the main cable is heavy, it presses on the cable supporting device 12, which increases the friction between each sliding support plate 1203 and the vertical plate 1202, making it difficult for the sliding support plate 1203 to slide.

[0053] Since the cable strand 11 closest to the center has the smallest displacement, the sliding pallet 1203 supporting the cable strand 11 has the smallest movement amplitude. Therefore, each sliding pallet 1203 must be driven independently. However, due to the large number of sliding pallets 1203, the cost of independent drive configuration is huge.

[0054] Therefore, in the preferred solution, a first diversion block 13 is further provided on both sides of the cable support device 12, and a first diversion block main channel 1301 and a plurality of first diversion block diversion channels 1302 connected to the first diversion block main channel 1301 are provided in the first diversion block 13, and air or liquid is inletted at one end of the first diversion block main channel 1301, and a retractable sliding top rod 1303 is provided in each first diversion block diversion channel 1302, and the end of each sliding top rod 1303 abuts against each sliding support plate 1203.

[0055] Air pressure or hydraulic pressure is used to push the auxiliary sliding support plate 1203 inwardly to reduce the working resistance of the cable tightening device.

[0056] In the preferred embodiment, a second diverter block 14 is further provided, in which a second diverter block main channel 1401 and multiple second diverter block diverter channels 1402 connected to the second diverter block main channel 1401 are provided. Each second diverter block diverter channel 1402 is connected to one end of the first diverter block main channel 1301, and one end of the second diverter block main channel 1401 is for intake of air or liquid.

[0057] One end of the main channel 1301 of the first diverter block and the main channel 1401 of the second diverter block are blocked with plugs, and the air or liquid inlet of the main channel 1401 of the second diverter block is controlled by a control valve.

[0058] Taking air intake as an example, when the cable tightening equipment starts to tighten the cable, the sliding support plate 1203 on the cable supporting device 12 also needs to move, so the control is opened at this time, and the air enters the first diversion block main channel 1301 of the first diversion block 13 on both sides through the second diversion block main channel 1401 and the second diversion block diversion channel 1402, and squeezes each sliding push rod 1303 through the first diversion block diversion channel 1302, and the sliding push rod 1303 starts to push each sliding support plate 1203, so that each sliding support plate 1203 tends to be centered and close to each other.

[0059] When the sliding support plate 1203 supporting the middle strand 11 is pushed into place, the air pressure continues to push the other sliding push rods 1303, gradually pushing the outer strands 11 together one by one.

[0060] In a preferred solution, a plurality of folded edge structures 801 are provided in the cable strand notch 8 .

[0061] Since the cables of the strand 11 are arranged in a regular hexagon, the bottom end of the strand notch 8 adopts a hexagonal shape to better fit the outer wall of the strand 11 .

[0062] The preferred solution includes a construction method,

[0063] After the auxiliary tower 6 is built, the bracket bracket 5 is built along the side wall of the auxiliary tower 6 to form a working platform, and the auxiliary saddle 4 is assembled;

[0064] Pre-lift the main cable to the set height to complete the main cable installation and cable tightening operations;

[0065] The operator installs the auxiliary saddle lower saddle body 9;

[0066] By driving the hydraulic jack 7 of the auxiliary saddle 4, the side span main cable is lowered into the lower saddle body 9 of the auxiliary saddle and the auxiliary saddle 4 is separated from the main cable;

[0067] The operator installs the auxiliary saddle upper saddle body 10, fixes the auxiliary saddle upper saddle body 10 and the auxiliary saddle lower saddle body 9, and then removes the auxiliary saddle 4.

[0068] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A cable clamp-type main cable construction device at the auxiliary saddle, characterized by: The auxiliary saddle (3) includes an auxiliary saddle lower saddle body (9) and an auxiliary saddle upper saddle body (10), the auxiliary saddle lower saddle body (9) and the auxiliary saddle upper saddle body (10) are spliced to form a cable clamp structure to clamp the main cable, auxiliary saddles (4) are provided on both sides of the auxiliary saddle (3), the auxiliary saddle (4) is provided with a cable supporting device (12), the cable supporting device (12) supports the lower side of the outer wall of the main cable, a bracket bracket (5) is provided below the auxiliary saddle (4), the bracket bracket (5) is used to connect with the auxiliary tower (6), a hydraulic jack (7) is provided on the bracket bracket (5), and the hydraulic jack (7) is used to push the auxiliary saddle (4); The cable supporting device (12) is provided with a V-shaped concave structure, and a plurality of cable strand notches (8) are provided on the V-shaped concave structure. The cable strand notches (8) are used to support the cables (11) of the main cable. The cable supporting device (12) comprises a base plate (1201), wherein a plurality of vertically parallel vertical plates (1202) are provided on the base plate (1201), a chute gap is provided between each vertical plate (1202), and a plurality of sliding support plates (1203) are further provided, wherein the sliding support plates (1203) are symmetrically arranged on two inclined surfaces of each V-shaped supporting surface (1204), and the sliding support plates (1203) are provided with a lower inclined surface (1205) and a downwardly extending slide plate (1206), wherein the lower inclined surface (1205) is inserted into the chute gap, the vertical plate (1202) is provided with a V-shaped supporting surface (1204), and the downwardly extending slide plate (1206) slides against the V-shaped supporting surface (1204), and the sliding support plate (1203) is provided with an inner inclined surface (1207), and the cable strand notch (8) is provided on the inner inclined surface (1207).

2. The cable clamp-type secondary saddle main cable installation device according to claim 1, characterized in that: The invention comprises a plurality of centering constraint groups, each of which comprises at least two sliding pallets (1203), wherein the cable strand notches (8) on the sliding pallets (1203) in the same centering constraint group are symmetrically arranged about the center line of the base plate (1201), and a transmission assembly is provided between the sliding pallets (1203) in the same centering constraint group to enable the two sliding pallets (1203) to move synchronously and in a centering manner.

3. The cable clamp-type secondary saddle main cable installation device according to claim 2, characterized in that: The centering constraint group includes a center constraint group and a side constraint group. The center constraint group includes a gear shaft (1211) rotatably connected to the base plate (1201), a wide gear (1210) is sleeved on the gear shaft (1211), and a downwardly extending slide plate (1206) of the sliding support plate (1203) is provided with a rack (1209), and the two racks (1209) are respectively engaged with the same wide gear (1210); the side constraint group includes at least two gears connected to the base plate (1201). 1) A rotatably connected gear shaft (1211), wherein both ends of each gear shaft (1211) are respectively provided with a wide gear (1210) and a transmission wheel (1212), and further comprising a transmission belt (1213), wherein both ends of the transmission belt (1213) are respectively connected to each transmission wheel (1212), and a downwardly extending slide plate (1206) of each sliding support plate (1203) is provided with a rack (1209), and each rack (1209) is respectively engaged with each wide gear (1210).

4. The cable clamp-type main cable installation device at the secondary saddle according to claim 1 or 3, characterized in that: A first diversion block (13) is further provided on both sides of the cable supporting device (12). The first diversion block (13) is provided with a first diversion block main channel (1301) and a plurality of first diversion block diversion channels (1302) connected to the first diversion block main channel (1301). One end of the first diversion block main channel (1301) is for air or liquid intake. A retractable sliding push rod (1303) is provided in each first diversion block diversion channel (1302), and the end of each sliding push rod (1303) abuts against each sliding support plate (1203).

5. The cable clamp-type auxiliary saddle main cable installation device according to claim 4, characterized in that: A second diverter block (14) is further provided, wherein the second diverter block (14) is provided with a second diverter block main channel (1401) and a plurality of second diverter block diverter channels (1402) connected to the second diverter block main channel (1401), each second diverter block diverter channel (1402) being connected to one end of the first diverter block main channel (1301), and one end of the second diverter block main channel (1401) is for air or liquid intake.

6. The cable clamp-type auxiliary saddle main cable installation device according to claim 1, characterized in that: A plurality of folding edge structures (801) are provided in the cable strand notch (8).

7. The construction method of the cable clamp-type secondary saddle main cable installation device according to claim 1, characterized in that: After the auxiliary tower (6) is built, a bracket (5) is built along the side wall of the auxiliary tower (6) to form a working platform, and the auxiliary saddle (4) is assembled; Pre-lift the main cable to the set height to complete the main cable installation and cable tightening operations; The operator installs the lower saddle body (9) of the auxiliary saddle; By driving the hydraulic jack (7) of the auxiliary saddle (4), the side span main cable is lowered into the lower saddle body (9) of the auxiliary saddle and the auxiliary saddle (4) is separated from the main cable; The operator installs the auxiliary saddle upper saddle body (10), fixes the auxiliary saddle upper saddle body (10) and the auxiliary saddle lower saddle body (9), and then removes the auxiliary saddle (4).

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