A cable saddle review method and a cable saddle review device
The 'two-point one-line' principle with an extension tube for cable saddle verification addresses the measurement challenge of IP points, ensuring high accuracy and construction quality in cable-stayed bridges.
Patent Information
- Application Number
- CN202010437450.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-05-21
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2040-05-21
AI Technical Summary
The IP point of the cable saddle in cable-stayed bridges is difficult to measure due to obstructions during the casting process, making it challenging to verify the linear shape of the cable and ensuring construction quality.
A saddle verification method and device that utilize a 'two-point one-line' principle, using an extension tube connected to the wire distribution tube to verify the IP point, avoiding obstructions from the climbing formwork platform, and ensuring high accuracy through coordinate system establishment and calculation.
The method and device provide high verification accuracy for the cable saddle IP point, ensuring construction quality and controlling subsequent construction deviations, with efficient verification time and versatile application across different pipe diameters.
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Figure CN111485482B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of cable saddle construction equipment, and in particular relates to a cable saddle review method and a cable saddle review device. Background Art
[0002] The most critical process in the construction of cable-stayed bridges is the construction of cable-stayed cables, which is divided into three steps: pre-embedding, cable threading, and tensioning. The focus is on controlling the anchor point, cable pipeline coordinate elevation, and cable force. The cable force is reversible and can be adjusted, while pre-embedding is irreversible and requires a higher pre-embedding accuracy.
[0003] Cable saddle pre-embedded measurement control data. Due to the characteristics of some cable-stayed bridges, the cable is passed through the tower end and anchored at the beam end. The tower end cable saddle anchor point measurement data is mainly based on the beam end anchor point and IP point (tangent virtual intersection point) back-calculated. The cable saddle is positioned according to the back-calculated data and IP point control, but due to obstruction during the cable saddle casting process, the IP point becomes a blind spot for measurement, and its spatial coordinates cannot be directly re-measured, making it difficult to verify the linear shape of the cable. Summary of the invention
[0004] The present invention aims to provide a cable saddle verification method and a cable saddle verification device, which solves the problem that the IP point of the existing cable saddle is difficult to measure.
[0005] The technical solution adopted by the present invention is:
[0006] On the one hand, the technical solution provides a saddle review method, comprising the following steps:
[0007] S1: Casting of the cable saddle in the Nth segment;
[0008] S2: Casting of cable saddle in segment N+1;
[0009] S3: When the N+1 segment saddle is cast, the extension pipe is connected to the N segment saddle to verify the IP point of the N segment saddle.
[0010] This saddle verification method verifies the IP points, avoids the obstruction of the climbing formwork platform, realizes the verification of the IP points of the saddle, and ensures the construction quality of the saddle; utilizes the appearance characteristics of the saddle, verifies the IP points of the saddle in a two-point-one-line manner, and the verification accuracy is much higher than the repeated verification of single-point coordinates, and has the advantage of high verification accuracy.
[0011] Preferably, the cable saddle casting comprises the following steps:
[0012] A1: Wire tube bundling;
[0013] A2: Erection of climbing formwork platform;
[0014] A3: Pouring of filling materials;
[0015] A4: Maintenance of filling materials.
[0016] Preferably, in step S3, when the climbing formwork platform of the N+1th segment saddle is being erected, the IP point of the Nth segment saddle is reviewed.
[0017] Preferably, in the step S2, when the cable saddle of the N+1th segment is cast, the climbing formwork platform used for casting the cable saddle of the Nth segment is climbed and used for casting the cable saddle of the N+1th segment.
[0018] Preferably, in step S3, the IP point review includes the following steps:
[0019] S301: The extension tube is connected to the wire distribution tube;
[0020] S302: Coordinate system establishment;
[0021] S303: Determination of coordinate points;
[0022] S304: Calculation of IP points.
[0023] Preferably, in step S302, the coordinate system takes the anchor point at one end of the saddle as the origin;
[0024] In step S303, the coordinate points include the anchor points at both ends of the saddle, the end points of the extension tube and the IP point.
[0025] Preferably, the method for measuring the endpoint of the extension tube includes a reflective tape method.
[0026] Preferably, when the reflective tape method is used, the center point of the reflective tape is consistent with the center of the saddle.
[0027] On the other hand, the technical solution provides a cable saddle review device, comprising a cable saddle, a climbing formwork platform connected to the cable saddle, and an auxiliary device located on the climbing formwork platform;
[0028] The cable saddle includes a wire distribution tube, and the auxiliary device includes an extension tube for checking the IP point of the cable saddle, and the extension tube is detachably connected to the wire distribution tube;
[0029] The extension tube includes a left extension tube and a right extension tube respectively located at both ends of the wire distribution tube. The IP point is calculated by the connection line between the left extension tube and the left anchor point of the wire distribution tube and the connection line between the right extension tube and the right anchor point of the wire distribution tube.
[0030] The saddle verification device verifies the IP point of the saddle through the "two-point one-line" principle. The principle is simple and easy to master. The extension tube itself has high rigidity and high verification accuracy. The extension tube and the wire branch tube are easy to disassemble and assemble, and the verification time is short. The inner diameters of the wire branch tubes of the saddle are the same, the extension tube can be reused, and it has high versatility.
[0031] Preferably, the saddle further comprises a filling material, and the filling material solidifies after being poured.
[0032] Preferably, the wire distribution tube and the extension tube are connected by threads;
[0033] One end of the extension tube is a fixed end connected to the wire distribution tube, and the other end of the extension tube is a free end. The extension tube is used to verify the IP points of the saddles in different sections.
[0034] Preferably, the climbing formwork platform comprises a climbing formwork, a climbing frame and a climbing device;
[0035] The lower end of the climbing template is located on the saddle, the upper end of the climbing template is connected to the climbing frame, and the auxiliary device is located on the climbing template;
[0036] The climbing device is connected to the climbing frame and drives the climbing template and the climbing frame to climb.
[0037] The beneficial effects of the present invention are:
[0038] 1. As the process with high precision requirements in the main tower construction, the cable saddle installation can effectively verify the actual accuracy of the cable saddle after casting by using the extension pipe tooling, so as to effectively control the subsequent construction. The economic benefits are mainly reflected in the quality control.
[0039] 2. The extension tube can be used to effectively check the accuracy of the cable saddle after casting. Through subsequent construction control, it can effectively avoid the subsequent continuous deviation of the cable saddle and the replacement of the cable caused by the wear of the cable after the operation of the cable-stayed bridge. It can provide a reference for the construction of similar projects in the future and has good social benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, 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 disclosure 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 any creative work.
[0041] Figure 1 It is a structural diagram of the cable-saddle space structure;
[0042] Figure 2 It is a flow chart of a saddle review method;
[0043] Figure 3 It is a schematic diagram of the process of cable saddle casting;
[0044] Figure 4 It is a flowchart of IP point review;
[0045] Figure 5 This is a schematic diagram of the structure of the Nth segment saddle wire tube bundling;
[0046] Figure 6 This is the structural diagram of the erection of the cable saddle climbing formwork platform of the Nth segment;
[0047] Figure 7 It is a structural diagram of pouring the filling material of the cable saddle in the Nth segment;
[0048] Figure 8 This is a schematic diagram of the structure of the N+1 segment saddle wire tube bundling;
[0049] Fig. 9 This is a structural diagram of the IP point review of the Nth segment saddle;
[0050] Fig.10 It is a structural schematic diagram of a saddle recheck device;
[0051] Fig.11 It is a schematic diagram of the local enlarged structure at A;
[0052] Fig.12 It is a schematic diagram of the local enlarged structure at point B.
[0053] In the figure: 1-saddle; 11-wire distribution pipe group; 111-wire distribution pipe; 2-climbing formwork platform; 21-climbing formwork; 22-climbing frame; 23-climbing equipment; 31-extension pipe. DETAILED DESCRIPTION
[0054] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0055] Embodiment 1:
[0056] like Figures 1 to 9 As shown, a saddle review method of this embodiment includes the following steps:
[0057] S1: Casting of the cable saddle in the Nth segment;
[0058] S2: Casting of cable saddle in segment N+1;
[0059] S3: When the N+1th segment cable saddle is cast, the extension pipe 31 is connected to the Nth segment cable saddle to verify the IP point of the Nth segment cable saddle.
[0060] A cable-stayed bridge is a type of bridge that uses many cables to pull the main beam directly onto the bridge tower. It is a structural system composed of a pressure-bearing tower, tension-bearing cables, and a bending-bearing beam. It can be seen as a multi-span elastically supported continuous beam with cables replacing piers. It can reduce the bending moment in the beam body, lower the building height, reduce the structural weight, and save materials.
[0061] The cable-stayed cable is anchored at the beam end at the tower end. The measurement data of the cable saddle anchor point at the tower end is mainly calculated based on the beam end anchor point and the IP point (the virtual intersection of the tangent line), and then the cable line shape is verified to ensure that the construction of the cable-stayed bridge meets the use requirements.
[0062] In the existing casting process of the saddle 1, a climbing formwork platform 2 is generally used to assist in the casting of the saddle 1. In the process of casting the saddle 1 segment by segment from bottom to top, the IP point should be verified after the casting of the Nth segment saddle. However, due to the existence of the climbing formwork platform 2, the climbing formwork platform 2 blocks the saddle 1, which obstructs the staff's line of sight. At the same time, the anchor points at both ends of the saddle 1, that is, the anchorage of the beam end of the inclined cable at the tower end, have not been constructed, and it is impossible to locate the embedded accuracy of the saddle 1 through "two points and one line" and then verify the linear shape of the inclined cable. In order to reduce the difficulty of measuring the IP point of the saddle 1, a saddle verification method is designed. The IP point is verified by the saddle verification method, which avoids the obstruction of the climbing formwork platform 2, realizes the verification of the IP point of the saddle 1, and ensures the construction quality of the saddle 1; utilizing the appearance characteristics of the saddle 1, the IP point of the saddle 1 is verified in a two-point one-line manner, and the verification accuracy is much higher than the repeated verification of single-point coordinates, and has the advantage of high verification accuracy; adopting the "two-point one-line" principle, the positioning coordinate calculation is simple, which is conducive to shortening the verification time; the extension tube 31 and the wire distribution tube 111 are convenient to load and unload, which is conducive to shortening the time used for verification, and the extension tube 31 has the widest range of use and is applicable to all pipe diameters; the auxiliary device has good versatility and a wide range of application, and the production cost is low, which is conducive to promotion.
[0063] The cable saddle verification method is now explained in conjunction with the casting process of the cable saddle 1, wherein, after the casting of the Nth segment cable saddle, the climbing formwork platform 2 did not climb during the curing process of the filling material of the Nth segment cable saddle. The climbing formwork platform 2 ensures that the appearance of the Nth segment cable saddle meets the requirements while blocking the staff's line of sight, hindering the verification. In addition, the anchor point of the cable saddle 1 has not been constructed at this time, that is, the cable saddle anchor point at the tower end of the cable and the anchor point at the beam end are in a straight line in space without considering the verticality. During the construction of the cable-stayed bridge, the tower and the beam are constructed synchronously, and the construction speed of the main tower is often much faster than that of the main beam. Therefore, after the tower end cable saddle is installed and positioned, it cannot be jointly measured with the beam end anchor point, that is, it cannot be verified by the two-point one-line method, so the IP point of the Nth segment cable saddle 1 cannot be measured.
[0064] After the curing of the filling material of the Nth segment saddle is completed, the N+1th segment saddle is cast. The lower half of the climbing formwork platform 2 blocks the Nth segment saddle, which blocks the measurement angle. Therefore, the extension tube 31 is set to facilitate the verification of the Nth segment saddle, which is equivalent to adding a point on the straight line between the saddle anchor point and the beam end anchor point for the verification of the saddle, that is, the beam end anchor point, the tower end saddle anchor point and the extension tube end point. These three points are in a line, and then the IP point of the Nth segment saddle is verified, so that the casting of the N+1th segment saddle and the verification of the Nth segment saddle are carried out simultaneously, which improves the efficiency of the casting of the saddle 1, verifies the actual accuracy of the saddle 1 after the casting is completed, makes effective control over the subsequent construction, and improves the quality of the saddle 1.
[0065] The following is an explanation of the various steps of the saddle review method.
[0066] In a specific embodiment provided by the present disclosure, as an option, casting of the saddle 1 includes the following steps:
[0067] A1: wire tube 111 bundled;
[0068] A2: Erection of climbing formwork platform 2;
[0069] A3: Pouring of filling materials;
[0070] A4: Maintenance of filling materials.
[0071] Now the casting steps of the saddle 1 are supplemented, wherein the wire pipe 111 bears the tension and the filling material bears the pressure, and has the advantages of being strong, durable, having good fireproof performance, saving steel materials and having low cost compared with steel structure.
[0072] The climbing formwork platform 2 has the ability of self-climbing, so it does not need the lifting of lifting machinery, which reduces the lifting workload of transportation machinery during construction. Hanging scaffolds on the climbing formwork 21 can save the external scaffolding during the construction process. Therefore, the climbing formwork platform 2 can reduce the number of lifting machinery, speed up the construction speed, and has good economic benefits.
[0073] Specifically, concrete is generally used as the filling material.
[0074] In the specific implementation manner provided in the present disclosure, as an option, in the step S3, when the climbing formwork platform 2 is being erected, the IP point of the Nth segment saddle is reviewed.
[0075] Now, the IP point verification is supplemented. Specifically, the IP point verification time of the Nth segment saddle is explained. Combined with the saddle 1 casting steps mentioned above, A1: when the wire tube 111 is bundled, the climbing formwork platform 2 is located at the Nth segment saddle, and the IP point verification of the Nth segment saddle cannot be performed; A3: when the filling material is cast or A4: when the filling material is maintained, since the saddle 1 is installed upward segment by segment, and the climbing formwork platform 2 can only cover the saddle 1 of two segments, the lower half of the climbing formwork platform 2 covers the Nth segment saddle, which is convenient for the installation of the extension pipe 31, and the construction of the Nth segment saddle and the N+1th segment saddle can also be carried out simultaneously, saving construction time; at the same time, combined with the construction of the cable-stayed bridge, because the tower segment construction period is much longer than the IP point verification time of the saddle 1, the IP point verification of the saddle 1 should be carried out at the same time as the installation of the climbing formwork platform 2, so as to minimize the measurement errors caused by weather, earth curvature, atmospheric refraction, etc.
[0076] In a specific embodiment provided in the present disclosure, as an option, in the step S2, when the cable saddle of the N+1th segment is cast, the climbing formwork platform 2 used for casting the cable saddle of the Nth segment is climbed and used for casting the cable saddle of the N+1th segment.
[0077] Now the use of the climbing formwork platform 2 is supplemented. Specifically, the same climbing formwork platform 2 is used for casting the cable saddle 1 in different sections, which saves materials, effectively utilizes the versatility of the climbing formwork platform 2, and reduces production costs.
[0078] In the specific implementation provided by the present disclosure, as an option, in the step S3, the IP point review includes the following steps:
[0079] S301: The extension tube 31 is connected to the wire distribution tube 111;
[0080] S302: Coordinate system establishment;
[0081] S303: Determination of coordinate points;
[0082] S304: Calculation of IP points.
[0083] Now, the method of checking the IP point is explained, wherein the saddle 1 is arc-shaped, and there is a tangent at each of the anchoring points at both ends of the saddle 1, and the virtual intersection of the two tangents is the IP point of the saddle 1. The wire splitter 111 is a part of the saddle 1. After the saddle 1 is cast, the position of the end of the wire splitter 111, that is, the anchoring point of the saddle 1, is measurable; the two ends of the wire splitter 111 are respectively connected to an extension tube 31, and the end point of the extension tube 31 can be divided into a fixed end connected to the wire splitter 111 and a free end located on the opposite side of the fixed end, and the position of the free end of the extension tube 31 is also measurable.
[0084] By establishing a coordinate system, the positions of the end of the wire-dividing tube 111 and the free end of the extension tube 31 are coordinateized and digitized. At the same time, the extension tube 31 can be regarded as a ray starting from the end of the wire-dividing tube 111 and located on the tangent of the saddle 1. The specific coordinates of the virtual intersection between the two extension tubes 31 located above the saddle 1 can be obtained by calculation; since the extension tubes 31 are located on the tangent of the saddle 1, the virtual intersection of the extension tubes 31 is the IP point of the saddle 1, and the specific coordinates of the virtual intersection between the two extension tubes 31 located above the saddle 1 is the actual IP point of the saddle 1, which is then compared with the designed theoretical IP point of the saddle 1 to verify the actual accuracy of the saddle 1 after casting, and then verify the linear shape of the inclined cable, so as to make effective control over the subsequent construction.
[0085] In simple terms, the actual IP point of the saddle 1 is calculated by the principle of two points and one line, and the actual IP point is compared with the theoretical IP point, and corrected in time, so as to effectively control the subsequent construction and improve the construction quality.
[0086] Specifically, the extension tube 31 is a straight rod to ensure the accuracy of IP point verification.
[0087] Specifically, as an option, in step S302, the coordinate system takes the anchor point at one end of the saddle 1 as the origin;
[0088] In the step S303, the coordinate points include the anchor points at both ends of the saddle 1, the end points of the extension tube 31 and the IP point.
[0089] Now the IP point verification method is further supplemented, wherein the origin of the coordinate system can be the anchor point at one end of the saddle 1 or the midpoint of the saddle 1, as long as the anchor points at both ends of the saddle 1 and the end points of the extension tube 31 can be coordinated.
[0090] Specifically, as an option, the end point measurement method of the extension tube 31 includes a reflective tape method.
[0091] The IP point verification method is now further supplemented, wherein the method for measuring the coordinates of the free end of the extension tube 31 is now introduced. Specifically, the two end points of the extension tube 31 are measured by a total station to obtain the coordinates of the extension tube 31. Setting reflective tape on the extension tube 31 is beneficial to improving the accuracy of the total station measurement and reducing errors.
[0092] More specifically, the following are the precautions for measuring the coordinates of the free end of the extension tube 31 . When the reflective tape method is used, the center point of the reflective tape is consistent with the center of the saddle 1 .
[0093] Embodiment 2:
[0094] like Figure 10 to Figure 11As shown, this embodiment, based on the embodiment 1, describes the saddle review device used in the review of the saddle 1.
[0095] A cable saddle review device, comprising a cable saddle 1, a climbing formwork platform 2 connected to the cable saddle 1, and an auxiliary device located on the climbing formwork platform 2;
[0096] The cable saddle 1 includes a wire distribution tube 111, and the auxiliary device includes an extension tube 31 for checking the IP point of the cable saddle 1, and the extension tube 31 is detachably connected to the wire distribution tube 111;
[0097] The extension tube 31 includes a left extension tube and a right extension tube respectively located at the two ends of the wire branch tube 111. The IP point is calculated by the connection line between the left extension tube and the left anchor point of the wire branch tube 111 and the connection line between the right extension tube and the right anchor point of the wire branch tube 111.
[0098] The saddle verification method is described in Example 1. Now, the device used in the implementation of the saddle verification method is described. First, a construction platform is built, and a wire branching tube group 11 constituting the saddle 1 is placed between two relatively arranged climbing formwork platforms 2. At the same time, one of the wire branching tubes 111 is threaded, and the extension tube 31 is also threaded, so as to ensure that the extension tube 31 can be detachably connected to the wire branching tube 111.
[0099] After the construction platform is built, the filling material is poured, and the shape of the filling material is limited by the climbing formwork platform 2. The filling material is ensured to be formed through several days of maintenance. After the filling material is formed, the climbing formwork platform 2 climbs. At this time, the saddle 1 of the next section is not made, but the IP point of the saddle 1 is checked by the auxiliary device 3 located on the climbing formwork platform 2, that is, the extension tube 31 is connected to the branch wire tube 111 for measurement and verification, and then the IP point coordinates are checked. By using the spatial position of the free end of the extension tube 31 and the two ends of the saddle 1, a coordinate system is established, and the IP point (virtual intersection) of the branch wire tube 111 of the saddle 1 is calculated inversely using the principle of "two points and one line", and then the linear shape of the inclined cable is checked. After confirming that the saddle 1 meets the use requirements, the next section is made.
[0100] The auxiliary device for verifying the saddle 1 avoids the obstruction of the climbing formwork platform 2, realizes the verification of the IP point of the saddle 1, and ensures the construction quality of the saddle 1; utilizing the appearance characteristics of the saddle 1, the IP point of the saddle 1 is verified in a two-point one-line manner, and the verification accuracy is much higher than the repeated verification of single-point coordinates, and has the advantage of high verification accuracy; adopting the "two-point one-line" principle, the positioning coordinate calculation is simple, which is conducive to shortening the verification time; the extension tube 31 and the wire distribution tube 111 are easy to load and unload, which is conducive to shortening the time used for verification, and the extension tube 31 has the widest range of use and is applicable to all pipe diameters; the auxiliary device 3 has good versatility and a wide range of application, and at the same time, the production cost is low, which is conducive to promotion.
[0101] In the specific embodiment provided by the present disclosure, the cable saddle 1 can be constructed as any suitable structure. As an option, the cable saddle 1 also includes a filling material, and the filling material solidifies after being poured.
[0102] Now the structure of the saddle 1 is supplemented, wherein the saddle 1 includes two parts, a wire tube group 11 and a filling material. One saddle 1 includes several wire tube groups 11. The wire tube group 11 is constructed simultaneously with the climbing formwork platform 2 during the construction of the construction platform. The filling material solidifies and takes shape after pouring, thereby realizing the production of the saddle 1.
[0103] In the specific embodiment provided by the present disclosure, the wire-dividing tube 111 and the extension tube 31 can be constructed into any suitable structure. As an option, the wire-dividing tube 111 and the extension tube 31 are connected by threads;
[0104] One end of the extension tube 31 is a fixed end connected to the wire distribution tube 111, and the other end of the extension tube 31 is a free end. The extension tube 31 is used to verify the IP points of the saddle 1 in different sections.
[0105] The connection method between the wire branching tube 111 and the extension tube 31 is now explained. The extension tube 31 can be used multiple times to save cost, so the connection between the wire branching tube 111 and the extension tube 31 is a detachable connection. At the same time, due to the structural characteristics of the wire branching tube 111 and the extension tube 31, a detachable connection method of threaded connection is adopted.
[0106] Thread turning should be carried out in accordance with relevant specifications to ensure the correct pitch. After trial cutting the first spiral line and checking that the pitch is qualified, thread turning can be started. The major and minor diameters of the thread should be constructed in accordance with the specifications.
[0107] In the specific embodiment provided by the present disclosure, the climbing formwork platform 2 can be constructed as any suitable structure. As an option, the climbing formwork platform 2 includes a climbing formwork 21, a climbing frame 22 and a climbing device 23;
[0108] The lower end of the climbing template 21 is located on the saddle 1, the upper end of the climbing template 21 is connected to the climbing frame 22, and the auxiliary device is located on the climbing template 21;
[0109] The climbing device 23 is connected to the climbing frame 22 and drives the climbing template 21 and the climbing frame 22 to climb.
[0110] The structure of the climbing formwork platform 2 is now described, wherein the climbing formwork 21 plays a role of limiting during the pouring process of the cable saddle 1, ensuring that the shape of the cable saddle 1 meets the use requirements, and during the climbing process of the climbing formwork platform 2, the climbing formwork 21 also plays a supporting role, ensuring the rise of the climbing frame 22 and the climbing device 23. The climbing frame 22 connects the climbing formwork 21 and the climbing device 23, and the climbing device 23 provides a power source for the climbing of the climbing formwork platform 2.
[0111] Now we will add some precautions when using this saddle review device:
[0112] 1. The branching tube 111 and the extension tube 31 are connected by threaded sleeves. When connected, ensure that the installation is firm and no installation error occurs.
[0113] 2. Avoid bumping and damage to the extension tube 31 during rotation.
[0114] 3. The steel rod used for the extension tube 31 must have sufficient rigidity. Check it for any deformation such as bending before each use. If there is any deformation, replace it in time.
[0115] 4. Thread turning should be carried out in accordance with relevant specifications to ensure the correct pitch. Test cut the first spiral line and check that the pitch is qualified before starting thread turning. The major and minor diameters of the thread should be constructed in accordance with the specifications.
[0116] Specifically, an example is given of the size selection of the extension tube 31. Specifically, according to the inner diameter of the wire distribution tube 111, a Q235 solid steel rod of φ22 is selected as the extension tube 31, and the fixed end is threaded. The total length of the extension tube 31 is 2.1m, the wire head length is 60cm, the pitch is 2.5cm, the major diameter is 2.2cm, and the minor diameter is 1.9294cm; a reflective sticker is pasted at the free end.
[0117] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0118] 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 saddle review method, characterized in that: The following steps are involved: S1: Casting of the cable saddle in the Nth segment; S2: Casting of cable saddle in segment N+1; S3: When the N+1 segment cable saddle is cast, the extension pipe (31) is connected to the N segment cable saddle to verify the IP point of the N segment cable saddle; In the step S3, when the climbing formwork platform (2) is being erected, the IP point of the Nth segment saddle is checked; The IP point review includes the following steps: S301: The extension tube (31) is connected to the wire-dividing tube (111), and the extension tube comprises a left extension tube and a right extension tube respectively located at two ends of the wire-dividing tube; S302: Establishing a coordinate system: The coordinate system takes the anchor point at one end of the saddle (1) as the origin; S303: Determination of coordinate points: The coordinate points include the anchor points at both ends of the saddle (1), the end points of the extension tube (31) and the IP point. Since the extension tube (31) is located on the tangent line of the saddle, the virtual intersection point of the extension tube (31) is the IP point of the saddle; S304: Calculation of IP point: The specific coordinates of the virtual intersection point between the two extension tubes (31) located above the cable saddle are the actual IP point of the cable saddle, which is then compared with the theoretical IP point of the designed cable saddle to verify the actual accuracy of the cable saddle after casting, and then verify the linear shape of the inclined cable; The end point measurement method of the extension tube (31) includes a reflective sticker method; When the reflective tape method is used, the center point of the reflective tape is consistent with the center of the saddle (1).
2. The saddle review method according to claim 1, characterized in that: The pouring of the cable saddle (1) comprises the following steps: A1: bundling of the wire tube (111); A2: Setting up the climbing formwork platform (2); A3: Pouring of filling materials; A4: Maintenance of filling materials.
3. The saddle review method according to claim 1, characterized in that: In the step S2, when the cable saddle of the N+1th segment is cast, the climbing formwork platform (2) used for casting the cable saddle of the Nth segment is climbed and used for casting the cable saddle of the N+1th segment.
4. A saddle review device for use in any saddle review method of claims 1-3, characterized in that: It comprises a cable saddle (1), a climbing formwork platform (2) connected to the cable saddle (1), and an auxiliary device located on the climbing formwork platform (2); The cable saddle (1) comprises a wire distribution tube (111), and the auxiliary device comprises an extension tube (31) used for checking the IP point of the cable saddle (1), and the extension tube (31) is detachably connected to the wire distribution tube (111); The extension tube (31) comprises a left extension tube and a right extension tube respectively located at two ends of the wire branching tube (111), and the IP point is calculated by back-calculating the line connecting the left extension tube and the left anchor point of the wire branching tube (111) and the line connecting the right extension tube and the right anchor point of the wire branching tube (111); The cable saddle (1) further comprises a filling material, and the filling material solidifies after being poured; The wire distribution tube (111) and the extension tube (31) are connected via threads; One end of the extension tube (31) is a fixed end connected to the wire distribution tube (111), and the other end of the extension tube (31) is a free end. The extension tube (31) is used to check the IP points of the saddles (1) of different sections. The climbing formwork platform (2) comprises a climbing formwork (21), a climbing frame (22) and a climbing device (23); The lower end of the climbing template (21) is located on the saddle (1), the upper end of the climbing template (21) is connected to the climbing frame (22), and the auxiliary device is located on the climbing template (21); The climbing device (23) is connected to the climbing frame (22) and drives the climbing template (21) and the climbing frame (22) to climb.
