Anchoring device for inclined structure end surface and anchoring method and installation method thereof

Abstract

The present invention relates to the field of prestressed construction technology of structures, and specifically to an anchoring device for the end face of an inclined structure and an anchoring method and an installation method thereof, wherein the anchoring device comprises: a connecting plate, an anchoring plate and a force transmission support; the connecting plate is used to be fixedly connected to one side of the end face of the inclined structure; the anchoring plate allows prestressed tendons to pass through and can anchor the prestressed tendons to its plate surface; one end of the force transmission support is perpendicular to the plate surface of the anchoring plate and is fixedly connected to the anchoring plate, and the other end of the force transmission support is rotatably connected to the connecting plate by a rotating screw, and the rotation of the rotating screw can drive the force transmission support to rotate, and then can drive the anchoring plate to deflect along the extension direction of the prestressed tendons, so that the plate surface of the anchoring plate is perpendicular to the prestressed tendons; the connecting plate is provided with a locking seat for locking the rotating screw. The present invention improves the safety of the building structure, cooperates with the stiffening structure to form a multiple rigid stiffening system, effectively limits the deformation under the anchor, reduces the prestress loss, and realizes safe and reliable prestressed anchoring.

Description

Technical Field

[0001] The invention relates to the technical field of prestressed construction of building structures, in particular to an anchoring device for an inclined structure end surface and an anchoring method and an installation method thereof. Background Art

[0002] The purpose of setting prestress in civil engineering is to improve the service performance of building structures. During the construction period, compressive stress is applied to the engineering structure in advance to fully or partially offset the tensile stress caused by the load during the use of the structure, avoid or delay structural cracking and damage, and improve the durability of the structure. The tensioning and anchoring technology of prestressed tendons mainly includes pre-tensioning and post-tensioning. The pre-tensioning method is to tension the prestressed tendons before pouring concrete, and temporarily anchor the tensioned prestressed tendons to the end face of the structure, and then pour concrete. After the concrete reaches the design strength, the prestressed tendons are relaxed (also called tensioning). With the help of the bonding between concrete and prestressed tendons, the prestress is applied to the structure; the post-tensioning method is to reserve the corresponding channels in the engineering structure. After the engineering structure is poured, the prestressed tendons are inserted into the reserved channels and tensioned, and then the prestressed tendons are anchored to the end face of the structure with anchors to achieve prestressing of the structure.

[0003] With the innovation and development of engineering technology, prestressing technology is increasingly being applied to various new types of steel-concrete composite structures to improve the structural bearing capacity and stiffness, and reduce the size and deadweight of the structure. In the post-tensioning method, the prestressed tendons can be flexibly turned and adjusted in the reserved channel before tensioning, and it is easy to inject concrete and anchor perpendicularly to the end face of the structure, so that the prestressed tendons and the end face of the structure can be anchored vertically. In the pre-tensioning method, the prestressed tendons are pre-tensioned and arranged in a straight line. Even if a steering device can be used to achieve folded line bundle arrangement, it is still difficult to turn or adjust the anchoring angle. In addition, the facade structure of the composite structure is rich in changes, and the prestressed line shape and the end face of the structure often inevitably appear oblique scenes. On the inclined end face of the structure, in addition to the normal force perpendicular to the end face of the structure, the anchoring force of the steel bundle will also generate a tangential force parallel to the end face of the structure, which poses a risk of tangential anchor slippage, causing prestress loss and even affecting the structural force safety. At present, most traditional prestressed anchoring forms are only suitable for scenarios where the steel bundle anchor angle is perpendicular to the structure end face. However, there is no experience to draw on for how to achieve safe and reliable prestressed anchoring in scenarios where the steel bundle line shape is oblique to the structure end face. It is urgent to explore a prestressed anchoring structure for inclined structure end faces to broaden the application scenarios of prestressed technology and promote structural form innovation. Summary of the invention

[0004] The purpose of the present invention is to provide an anchoring device for inclined structural end faces and its anchoring method and installation method to solve the prestressed anchoring problem caused by the angle of the prestressed tendons being not perpendicular to the structural end faces in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An anchoring device for the end face of an inclined structure comprises: a connecting plate, an anchoring plate and a force transmission support; the connecting plate is used to be fixedly connected to one side of the end face of the inclined structure; the anchoring plate allows prestressed tendons to pass through and can anchor the prestressed tendons to its plate surface; one end of the force transmission support is perpendicular to the plate surface of the anchoring plate and is fixedly connected to the anchoring plate, and the other end of the force transmission support is rotatably connected to the connecting plate by a rotating screw rod, and the rotation of the rotating screw rod can drive the force transmission support rod to rotate, thereby driving the anchoring plate to deflect along the extension direction of the prestressed tendons, so that the plate surface of the anchoring plate is perpendicular to the prestressed tendons; the connecting plate is provided with a locking seat for locking the rotating screw rod.

[0007] Since the prestressing technology of pre-tensioning method needs to temporarily anchor the prestressed tendons to the end face of the inclined structure, and the prestressed tendons at the end face of the inclined structure usually form a non-right angle with the end face of the inclined structure, the anchor cannot anchor the prestressed tendons perpendicular to the end face of the inclined structure; this scheme arranges a connecting plate, an anchor plate and a force transmission support, the connecting plate can be fixedly connected to the end face of the inclined structure, the anchor plate allows the prestressed tendons to pass through and can anchor the prestressed tendons to its plate surface, so that the temporary anchoring position of the prestressed tendons is improved to anchoring to the anchor plate, and then one end of the force transmission support is connected to the connecting plate by rotating the rotating screw. The rotation of the rotating screw can drive the force transmission support to rotate, and then drive the plate surface of the anchor plate to deflect along the extension direction of the prestressed tendons, and the rotating screw is locked by the locking seat. The surface of the anchor plate can be turned to be perpendicular to the prestressed tendons and locked, so that the anchor can anchor the prestressed tendons perpendicular to the surface of the anchor plate, eliminating the tangential tension force caused by the inclined structure end face as the anchoring surface, thereby reducing the risk of tangential slip of the anchor head along the inclined structure end, solving the anchoring problem of existing prestressed anchoring technology when the prestressed line shape and the structure end face are obliquely intersected, and improving the safety of the building structure; and, driven by the force transmission support, the anchor plate can deflect to a corresponding angle according to the different inclination angles of the prestressed tendons and the inclined structure, and can be locked at the corresponding deflection angle, so that the anchoring device can be used for inclined structure end faces with different inclination angles, making the anchoring device for inclined structure end faces strong in practicability and high in universality.

[0008] As a preferred solution of the present invention, the force transmission support comprises: a force transmission plate and a force transmission square tube, one end of the force transmission plate is fixedly connected to the rotating screw, and the other end of the force transmission plate is telescopically connected to the force transmission square tube; the force transmission square tube is perpendicular to the anchor plate and fixedly connected to the anchor plate; and a limit bolt for locking the relative position is provided between the force transmission plate and the force transmission square tube. In this preferred solution, by setting the force transmission support as a telescopically connected force transmission plate and a telescopically connected force transmission square tube, on the one hand, the plate-shaped force transmission support can enhance the axial compression stiffness of the anchoring device, which is beneficial for the force transmission support to be supported between the connecting plate and the anchor plate and stably transmit the tension reaction force; on the other hand, the other end of the force transmission plate is telescopically connected to the force transmission square tube, and can be relatively extended or shortened with the force transmission square tube, so that the distance between the anchor plate fixedly connected to the force transmission square tube and the connecting plate (inclined structure end face) is adjustable, that is, the prestressed tendons can be anchored at different distances from the inclined structure end face, and can adapt to the anchoring of prestressed tendons with different anchor head lengths, making the device more flexible to use and more practical.

[0009] As a preferred solution of the present invention, the force transmission plate is nested in the force transmission square tube, and the force transmission plate is provided with a limiting hole for bolt connection; the force transmission square tube is provided with a limiting slide corresponding to the limiting hole; and the limiting slide is provided for the bolt to slide vertically. This preferred solution enables the force transmission plate to be telescopic in the force transmission square tube by setting the force transmission square tube as the force transmission square tube, and the force transmission plate is nested in the force transmission square tube, and by providing a limiting hole for bolt connection on the force transmission plate, the force transmission plate can be moved vertically relative to the force transmission square tube through the preset limiting hole, and the force transmission square tube is provided with a limiting slide for bolts to slide vertically, and by loosening the bolts, the force transmission plate can be moved vertically relative to the force transmission square tube to achieve a telescopic connection, and the bolts are tightened so that the force transmission plate and the force transmission square tube are clamped by the bolts, thereby locking the relative position of the force transmission plate and the force transmission square tube.

[0010] As a preferred solution of the present invention, a first stiffening plate is further provided between the anchor plate and the force-transmitting square tube, and the first stiffening plate is fixedly connected to the force-transmitting square tube and the anchor plate respectively and perpendicular to each other. This preferred solution forms an orthogonal support structure with the force-transmitting square tube and the anchor plate by providing a stiffening plate between the anchor plate and the force-transmitting square tube, and the stiffening plate is fixedly connected to the force-transmitting square tube and the anchor plate respectively and perpendicular to each other, so as to enhance the bearing capacity of the anchor plate and the force-transmitting square tube, avoid the anchor plate from warping and deforming under the tensioning action of the prestressed tendons, thereby avoiding the force-transmitting square tube from axially compressing and becoming unstable under the action of prestress, and further improve the stability of the anchoring device.

[0011] As a preferred solution of this scheme, a stiffening rib is provided at the connection between the force transmission plate and the rotating screw; the stiffening rib is triangular in shape, and the bottom and side surfaces of the stiffening rib are welded to the rotating screw and the force transmission plate, respectively. This preferred solution, by providing a stiffening rib at the connection between the force transmission plate and the rotating screw, and the stiffening rib is triangular in shape, the connection between the force transmission plate and the rotating screw is not only an end connection, but also the side and bottom surfaces of the triangular stiffening rib are welded to the rotating screw and the force transmission plate, respectively, which strengthens the local force-bearing performance of the plate surface of the force transmission plate and the rotating screw, reduces the risk of the force transmission plate breaking from the rotating screw due to tension or compression, and thus further improves the safety of the use of the anchor device.

[0012] As a preferred solution of the present invention, the connecting plate includes two connecting plates respectively arranged on both sides of the prestressed tendons; and the force transmission supports include two connecting plates respectively matched with the two connecting plates. This preferred solution is achieved by setting the connecting plate as a double connecting plate located on both sides of the prestressed tendons, and setting two force transmission supports matched with the connecting plate, so that the two force transmission supports are respectively located on both sides of a row of prestressed tendons, and are both fixedly connected to the anchor plate, and the rotating screw is parallel to the arrangement direction of the stress tendons, so that the anchor plate can realize anchoring of a row of prestressed tendons, and the anchor plate can deflect in the direction of inclination of a row of prestressed tendons, so that on the basis of being able to realize anchoring of a row of prestressed tendons, the deflection of the anchor plate can be adjusted, and a row of prestressed tendons can be selected as the anchoring object according to the anchoring prestress required by the prestressed tendons, further enhancing the flexibility and practicality of the anchoring device for the end face of the inclined structure.

[0013] As a preferred embodiment of the present invention, the anchoring device for the end face of the inclined structure also includes: a stiffening structure that can be fixed to the end face of the inclined structure; the stiffening structure is fixed to the other side of the end face of the inclined structure opposite to the connection plate; the stiffening structure includes: two second stiffening plates and two third stiffening plates that are both perpendicular to the end face of the inclined structure; the two second stiffening plates and the two second stiffening plates are surrounded by the prestressed tendons, the second stiffening plates are perpendicular to the third stiffening plates, and the second stiffening plates and the third stiffening plates are both provided with pin holes for concrete injection. In this preferred solution, a stiffening structure that can be fixed on the other side of the end face of the inclined structure opposite to the connecting plate is provided, and two second stiffening plates are respectively provided on both sides of a prestressed tendon, and the two second stiffening plates are commonly connected to the third stiffening plate, so that the second stiffening plates and the third stiffening plates form a lattice member around a prestressed tendon, so that there is a reinforced support around each prestressed tendon, which can suppress the local deformation and instability of the end face of the inclined structure under the action of prestress, and further reduce the prestress loss caused by elastic compression of the end face of the inclined structure; and by respectively providing pin holes for concrete injection in the second stiffening plate and the third stiffening plate, the concrete inside the structure forms a pinning effect with the opening, and further strengthens the mutual connection between the stiffening structure and the concrete inside the building structure; and the stiffening structure is combined with the connecting plate, the force transmission support and the anchor plate on one side of the connecting plate provided on the end face of the inclined structure, so that a lattice-type multiple stiffening system can be formed on both sides of the end face of the inclined structure, which can effectively limit the deformation under the anchor, reduce the prestress loss, and realize safe and reliable prestressed anchoring.

[0014] As a preferred solution of the present invention, the connecting plate is provided with a locking seat, and the locking seat is provided with a clamping groove for the rotating screw to be connected; the inner wall of the clamping groove begins to have internal teeth; both ends of the rotating screw are provided with external teeth that can mesh with the inner rack, and the clamping groove is provided with a locking bolt, and the locking bolt can lock the clamping groove to make the rotating screw mesh with the clamping groove. This preferred solution can facilitate the fixing of the rotating screw to the locking seat by providing a locking seat on the connecting plate and the clamping groove on the locking seat. If the locking bolt does not lock the clamping groove, the rotating screw can rotate in the clamping groove. If the locking bolt locks the clamping groove, the rotating screw meshes with the clamping groove and cannot rotate relative to each other, thereby achieving locking and positioning of the rotating screw, and then achieving positioning of the force transmission support and the anchor plate; it is convenient to adjust the rotation angle of the rotating screw, and it is also convenient to lock the rotating screw, which further improves work efficiency.

[0015] As a preferred solution of the present invention, a flexible pad is provided at the gap between the rotating screw and the connecting plate; the flexible pad is provided with a groove matching the shape of the rotating screw. In this preferred solution, on the basis of setting the two ends of the rotating screw to be connected to the locking seat, by providing a flexible pad at the gap between the rotating screw and the connecting plate, the groove surface of the flexible pad can fit tightly with the rotating screw without affecting the rotation of the rotating screw. After locking the rotating screw, the flexible pad forms a surface support for the rotating screw, so that the stress of the rotating screw on the locking seat is dispersed to the surface support of the flexible pad, reducing local stress concentration, thereby reducing the risk of damage to the connecting plate and the end face of the inclined structure.

[0016] To achieve the above-mentioned purpose, the present invention also provides a prestressed anchoring method for the end face of an inclined structure using the pre-tensioning method. Using the anchoring device for the end face of an inclined structure, the method includes the following steps: dividing a plurality of prestressed tendons of the end face of the inclined structure into a plurality of anchoring units according to the distribution pattern of a plurality of prestressed tendons on the end face of the inclined structure; installing a plurality of anchoring devices for the end face of the inclined structure corresponding to the anchoring units on the outer side of the end face of the inclined structure; rotating the rotating screw to drive the force transmission support to deflect along the extension direction of the prestressed tendons, so that the force transmission support is parallel to the prestressed tendons and the locking seat is locked; according to the required prestress value of each anchoring unit, a preset prestress value is applied to the prestressed tendons of each anchoring unit, and each prestressed tendon is anchored to the anchor plate with an anchor.

[0017] This scheme divides a number of prestressed tendons on the end face of the inclined structure into a number of prestressed tendons divided into a number of anchoring units, and installs a number of anchoring devices corresponding to the anchoring units on the outer side of the end face of the inclined structure. On the one hand, a number of anchoring units are formed on the end face of the inclined structure per unit area, and the anchoring stress is dispersed in each anchoring unit, so that a number of anchoring reaction force action points are realized on the limited end face of the inclined structure, thereby enhancing the anchoring reverse force within the unit area and improving the anchoring reliability; on the other hand, the prestressed tendons are anchored in different areas according to the required prestress, so that each anchoring unit has relative independence and does not interfere with each other, and even if some prestressed anchoring fails, it will not affect the anchoring effect of other anchoring units. When the damaged anchoring unit is replaced or repaired, the other intact anchoring units can work normally; and each anchoring unit cooperates with the first stiffening plate, stiffening ribs and stiffening structure to form an internal and external lattice-type multiple rigid stiffening system of the structural end face, which can effectively limit the deformation under the anchor, reduce the prestress loss, and realize safe and reliable prestressed anchoring.

[0018] To achieve the above-mentioned purpose, the present invention also provides an installation method for an anchoring device for an inclined structure end face, and the installation of the anchoring device for an inclined structure end face includes the following steps: fixing the connecting plate to the inclined structure end face; welding a rotating screw to the force transmission plate, and the force transmission plate and the rotating screw are integrally connected to the connecting plate, so that the rotating screw is rotatably connected to the connecting plate; welding the anchoring plate and the force transmission square tube; connecting the force transmission square tube and the anchoring plate to the force transmission plate as a whole, so that the prestressed tendons pass through the anchoring plate; telescopically adjusting the relative position of the force transmission plate and the force transmission square tube, so that the anchoring plate is located at the position where the prestressed tendons are to be anchored, and locking the limit bolt to lock the position of the force transmission plate and the force transmission square tube; rotating the rotating screw to deflect the anchoring plate along the direction of the prestressed tendons to be perpendicular to the prestressed tendons, and locking the locking seat to lock the rotating screw.

[0019] The present invention is to weld the connecting plate to the end face of the inclined structure first, weld the rotating screw to the force transmission plate, assemble the rotating screw and rotatably connect to the connecting plate, so that the rotating screw and the force transmission plate structure are first fixed to the end face of the inclined structure, and then the welded anchor plate and the force transmission square tube are integrally connected to the force transmission plate, so that the anchor plate and the connecting plate can be connected and installed as two modules, which can facilitate the alignment of the anchor plate and the prestressed tendons to be passed through, and can facilitate the telescopic connection of the force transmission plate and the force transmission square tube, making the installation more convenient; after completing the alignment of the anchor plate and the connection of the force transmission square tube and the force transmission plate, the transmission plate can be adjusted by telescopic adjustment. The relative position of the force plate and the force transmission square tube ensures that there is no freedom of movement between the force transmission plate and the connecting plate, and between the force transmission square tube and the anchor plate in the extension and contraction direction of the force transmission square tube and the force transmission plate, thereby reducing the difficulty of adjusting the force transmission square tube into place by extension and contraction, and enabling the anchor plate to be adjusted to the position to be anchored of the prestressed tendons more quickly, thereby further improving the efficiency of installation; finally, the rotating screw is rotated to adjust the inclination angle of the anchor plate so that the plate surface of the anchor plate is perpendicular to the prestressed tendons, so that the anchor plate will not be deflected in other directions during the rotation of the rotating screw, thereby further improving the centration of the installation.

[0020] As a preferred embodiment of the present invention, the installation method of the anchoring device for the end face of the inclined structure also includes the following steps: installing a stiffening structure on the other side of the end face of the inclined structure opposite to the side where the connecting plate is set; providing a flexible pad at the bottom of the rotating screw; providing a first stiffening plate at the contact line between the force transmission square tube and the anchoring plate, installing the first stiffening plate, the force transmission square tube and the anchoring plate, and welding the first stiffening plate to the anchoring plate and the force transmission square tube.

[0021] The preferred solution installs a stiffening structure on the other side of the inclined structure opposite to the connecting plate, so that the end face of the inclined structure can be strengthened and supported, which can suppress the local deformation and instability of the end face of the inclined structure under the action of prestress, and further reduce the prestress loss caused by elastic compression on the end face of the inclined structure; by arranging a first stiffening plate at the contact line between the force-transmitting square tube and the anchor plate, the load-bearing performance of the anchor plate and the force-transmitting square tube can be enhanced, and the anchor plate can be prevented from tilting and deforming under the tensioning action of the prestressed tendons; by arranging a flexible pad at the bottom of the rotating screw, the groove surface of the flexible pad can fit tightly with the rotating screw without affecting the rotation of the rotating screw. After locking the rotating screw, the flexible pad forms a surface support for the rotating screw, so that the stress of the rotating screw on the locking seat is dispersed on the surface support of the flexible pad, thereby reducing local stress concentration and reducing the risk of damage to the connecting plate and the end face of the inclined structure.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. By setting a connecting plate, an anchor plate and a force transmission support, the connecting plate can be fixedly connected to the end face of the inclined structure, and the anchor plate allows the prestressed tendons to pass through and can anchor the prestressed tendons on its plate surface, so that the temporary anchoring position of the prestressed tendons is improved to be anchored on the anchor plate; then, by rotating one end of the force transmission support to the connecting plate by means of a rotating screw, the rotation of the rotating screw can drive the force transmission support to rotate, and the plate surface of the anchor plate can be turned to be perpendicular to the prestressed tendons and locked, so that the anchor can anchor the prestressed tendons perpendicular to the plate surface of the anchor plate, eliminating the tangential tension force due to the end face of the inclined structure as the anchoring surface, thereby reducing the risk of tangential slippage of the anchor head along the end of the inclined structure, solving the anchoring problem of the existing prestressed anchoring technology when the prestressed line shape and the end face of the structure are obliquely intersected, and improving the safety of the building structure;

[0024] 2. One end of the force transmission support is connected to the connecting plate by means of a rotating screw, and the rotation of the rotating screw can drive the force transmission support to rotate. Driven by the force transmission support, the anchor plate can deflect to a corresponding angle according to the different inclination angles of the prestressed tendons and the inclined structure, and can be locked at the corresponding deflection angle, so that the anchor device can be used for the end faces of inclined structures with different inclination angles, so that the anchor device for the end faces of inclined structures has strong practicality and high universality;

[0025] 3. By dividing the prestressed tendons of the inclined structure end face into several anchoring units, and installing several anchoring devices corresponding to the anchoring units on the outer side of the inclined structure end face, on the one hand, the anchoring reverse force per unit area can be enhanced, and the anchoring reliability can be improved; on the other hand, each anchoring unit is relatively independent and does not interfere with each other, and even if some prestressed anchoring fails, it will not affect the anchoring effect of other anchoring units. When the damaged anchoring unit is replaced or repaired, other intact anchoring units can work normally; and each anchoring unit cooperates with the first stiffening plate, stiffening ribs and stiffening structure to form an internal and external lattice-type multiple rigid stiffening system of the structure end face, which can effectively limit the deformation under the anchor, reduce the loss of prestress, and realize safe and reliable prestressed anchoring;

[0026] 4. The installation method of the anchor device for the end face of the inclined structure can facilitate the alignment of the anchor plate and the prestressed tendons to be passed through, and can facilitate the telescopic connection of the force transmission plate and the force transmission square tube, making the installation more convenient; after completing the alignment of the anchor plate and the connection of the force transmission square tube and the force transmission plate, the relative position of the force transmission plate and the force transmission square tube is adjusted by telescopic adjustment, which can reduce the difficulty of telescopically adjusting the force transmission square tube into place, thereby further improving the efficiency of the installation; finally, the rotating screw is rotated to adjust the inclination angle of the anchor plate, so that the anchor plate will not be deflected in other directions during the rotation of the rotating screw, thereby further improving the centering of the installation;

[0027] 5. The anchoring device for the end face of the inclined structure described in the present invention has a simple structure, is easy to install and disassemble, and can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the anchoring state of the anchoring device for the end face of the inclined structure of the present invention;

[0029] Figure 2 It is an exploded view of the anchoring device for the end face of an inclined structure of the present invention;

[0030] Figure 3 It is a structural diagram of the locking seat of the present invention;

[0031] Figure 4 It is a schematic diagram of the stiffening structure of the present invention;

[0032] Figure 5 is a side view of the anchoring state of multiple anchoring units of the present invention;

[0033] Figure 6 is an oblique view of the anchoring state of multiple anchoring units of the present invention;

[0034] Icons: 0-prestressed tendons; 1-connecting plate; 11-locking seat; 111-clamping groove; 112-locking bolt; 2-anchor plate; 21-first stiffening plate; 22-preset through hole; 3-force transmission support; 31-force transmission plate; 32-force transmission square tube; 33-limiting bolt; 4-rotating screw; 41-stiffening rib; 42-flexible pad; 421-groove; 5-stiffening structure; 51-second stiffening plate; 52-third stiffening plate; 53-pin hole; 6-anchor; 100-inclined structure end face; 200-anchor unit. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] Example 1

[0038] like Figure 1 As shown, Figure 1 The device is shown anchored to the prestressed tendon 0. Figure 1 The inclined structural end face 100 is an inclined surface. The anchoring device for the inclined structural end face provided by the present invention includes: a connecting plate 1, an anchoring plate 2 and a force transmission support 3; the connecting plate 1 is used to be fixedly connected to the inclined structural end face 100; the anchoring plate 2 allows the prestressed tendon 0 to pass through and can anchor the prestressed tendon 0 on its plate surface; one end of the force transmission support 3 is perpendicular to the plate surface of the anchoring plate 2 and is fixedly connected to the anchoring plate 2, and the other end of the force transmission support 3 is rotatably connected to the connecting plate 1 through a rotating screw 4. The rotation of the rotating screw 4 can drive the force transmission support 3 to rotate, and then can drive the anchoring plate 2 to deflect along the extension direction of the prestressed tendon 0, so that the plate surface of the anchoring plate 2 is perpendicular to the prestressed tendon 0; the connecting plate 1 is provided with a locking seat 11 for locking the rotating screw 4.

[0039] Preferably, the prestressed anchoring device for the inclined structure end surface of the present invention can form a prestressed anchoring system formed by a plurality of prestressed partitioned anchoring units 200, referring to Figure 4 As shown, the prestressed anchoring system includes: prestressed tendons 0 (prestressed steel strands), anchors 6 (prestressed anchors), a plurality of anchoring units 200 (prestressed partitioned anchoring modules), an inclined structure end face 100 (inclined structure front anchor face), and a stiffening structure 5 (lattice-type front anchor face stiffening structure). The prestressed partitioned anchoring units 200 and the lattice-type stiffening structure 5 together form a multiple rigid stiffening system of the inner and outer lattice-type of the structure end face, which can effectively limit deformation under the anchor, reduce prestress loss, and achieve safe and reliable prestressed anchoring.

[0040] It should be noted that the prestressed tendon 0 is understood to be a force-transmitting tendon arranged inside a building structure for tensioning to achieve prestress, usually a steel bar that can be buried in a reinforced concrete structure, that is, a steel bar or steel bar bundle that can achieve a prestressed construction effect.

[0041] It should be noted that the connecting plate 1 is used to be fixedly connected to the inclined structure end surface 100, which is a detachable fixed connection, which can be a bolt fastening connection, so that the connecting plate 1 is fixed to the inclined structure end surface 100, so that its position or itself does not move or rotate, preferably as follows Figure 1 As shown, the connecting plate 1 is fastened and connected to the inclined structure end face 100 by bolts. The connecting plate 1 is arranged parallel to the outer surface of the inclined structure end face 100 and fits tightly with the outer surface of the inclined structure end face 100. It is connected to the outer surface of the inclined structure end face 100 by anchor bolts.

[0042] It should be noted that the other end of the force transmission support member 3 is rotatably connected to the connecting plate 1 through a rotating screw 4. The rotating connection is understood as the rotating screw 4 being a rotatable rod, the force transmission support member 3 is fixed to the rotating screw 4, and the rotating screw 4 can be rotated on the connecting plate 1 through a rotating shaft or a bearing or a bearing seat, so that the rotating screw 4 can drive the force transmission support member 3 to rotate relative to the connecting plate 1 by rotating relative to the connecting plate 1. Preferably, as Figure 1 and Figure 4 As shown, preferably, the connecting plate 1 is provided with a locking seat 11, and the locking seat 11 is provided with a clamping groove 111 for rotating and connecting the rotating screw 4; the inner wall of the clamping groove 111 begins to have internal teeth; both ends of the rotating screw 4 are provided with external teeth that can mesh with the internal teeth, and the clamping groove 111 is provided with a locking bolt 112, and the locking bolt 112 can be locked on the locking seat 11 to make the rotating screw 4 mesh with the clamping groove 111; it should be noted that when the locking bolt 112 is in a loosened state, the outer teeth of the rotating screw 4 and the inner teeth of the clamping groove 111 are in a non-meshing state, the rotating screw 4 can rotate relative to the clamping groove 111, and the locking bolt 112 is in a tightening turntable, so that the locking seat 11 is clamped on the rotating screw 4, so that the outer teeth of the rotating screw 4 are meshed with the inner teeth of the clamping groove 111, so that the rotating screw 4 is locked, that is, the force transmission support 3 is locked.

[0043] Since both ends of the rotating screw 4 are connected to the locking seat 11, and the rotating screw 4 rotates relative to the plate surface of the connecting plate 1, a gap exists between the middle part of the rotating screw 4 and the connecting plate 1. After the rotating screw 4 is locked, the force transmission support 3 and the anchor plate 2 connected by the rotating screw 4 form a reaction seat for anchoring the prestressed tendon 0, which needs to bear the anchoring force of the anchor 6, so that the stress per unit area of ​​the locking seat 11 needs to be borne is greater than the periphery of the locking seat 11, which may easily cause the inclined structural end face 100 at the locking seat 11 to crack or be damaged due to excessive bearing stress. Preferably, a flexible pad 42 is provided at the gap between the rotating screw 4 and the connecting plate 1; the flexible pad 42 is provided with a groove 421 matching the shape of the rotating screw 4. The flexible pad 42 is a cushioning member that can form a flexible support for the rotating screw 4 without affecting the rotation of the rotating screw 4. Specifically, the flexible pad 42 can be preferably set as a rubber pad. The rubber pad can transform the force mode from the point support of the two locking seats 11 to the surface support composed of the locking seat 11 and the rubber pad, thereby significantly reducing local stress concentration and improving force safety.

[0044] It should be noted that the anchor plate 2 is deflected along the extension direction of the prestressed tendon 0. Even if the anchor plate 2 is rotated through the force transmission support 3 driven by the rotating screw 4, the anchor plate 2 is deflected so that the plate surface of the anchor plate 2 is perpendicular to the prestressed tendon 0. The extension direction of the prestressed tendon 0 is not a right angle to the inclined structure end face 100.

[0045] The force transmission support 3 is understood to be a force transmission support 3 that can connect the connecting plate 1 and the anchoring plate 2, and enable the anchoring stress of the anchor 6 carried on the anchoring plate 2 to be transmitted to the connecting plate 1. The present invention can preferably be as follows: Figure 1 As shown in or 2, the force transmission support 3 includes: a force transmission plate 31 and a force transmission square tube 32, one end of the force transmission plate 31 is fixedly connected to the rotating screw 4, and the other end of the force transmission plate 31 is telescopically connected to the force transmission square tube 32; the force transmission square tube 32 is perpendicular to the anchor plate 2 and fixedly connected to the anchor plate 2; a limit bolt 33 for locking the relative position is provided between the force transmission plate 31 and the force transmission square tube 32.

[0046] It should be noted that the telescopic connection is understood as the size of the force transmission plate 31 matching the size of the force transmission square tube 32, so that the force transmission plate 31 can be nested into the force transmission square tube 32, and the force transmission plate 31 can slide relative to the force transmission square tube 32, so that the length of the force transmission plate 31 extending into the force transmission square tube 32 increases, thereby shortening the force transmission support 3, and shortening the length of the force transmission plate 31 extending into the force transmission square tube 32, thereby extending the force transmission support 3. In this way, the telescopic connection realizes that the force transmission support 3 can support and transmit force between the connecting plate 1 and the anchor plate 2, and can also extend and lock the connection between the connecting plate 1 and the anchor plate 2. The spacing can be specifically preferred, the force transmission plate 31 is provided with a limiting hole for connection with the limiting bolt 33; the force transmission square tube 32 is provided with a limiting slide groove corresponding to the limiting hole; the limiting slide groove is for the limiting bolt 33 to slide vertically; so that the force transmission plate 31 can freely expand and contract in the force transmission square tube 32, and after the expansion and contraction adjustment is completed, the force transmission square tube 32 and the force transmission plate 31 are reliably connected through the limiting bolt 33 to achieve locking of the spacing between the anchor plate 2 and the connecting plate 1, that is, the anchor plate 2 can be located at a position where the prestressed tendon 0 extends out of a certain length of the inclined structure end face 100, which can conveniently adjust and determine the anchor position of the anchor plate 2.

[0047] Due to the tensioning of the prestressed tendon 0, the anchor 6 needs to provide anchoring support force. The anchoring force of the anchor 6 is transmitted from the anchor plate 2 to the force transmission support 3 and then to the connecting plate 1 and the inclined structure end face 100. There is a connecting structure at the connection between the anchor plate 2 and the force transmission square tube 32 of the force transmission support 3, which needs to bear stiffness. Therefore, in order to strengthen the structural stiffness, it is preferred that, as Figure 2 As shown, a first stiffening plate 21 is further provided between the anchor plate 2 and the force transmission square tube 32. The first stiffening plate 21 is respectively fixedly connected to the force transmission square tube 32 and the anchor plate 2 and is perpendicular to each other to form an orthogonal structure, which can enhance the bearing stiffness of the anchor plate 2 in the lateral deflection and vertical extrusion directions.

[0048] Similarly, preferably, a stiffening rib 41 is provided at the connection between the force transmission plate 31 and the rotating screw 4; the stiffening rib 41 is triangular in shape, and the bottom and side surfaces of the stiffening rib 41 are respectively welded to the rotating screw 4 and the force transmission plate 31; it is used to reduce the stress concentration when the prestress is transferred from the rectangular cross-section of the force transmission plate 31 to the circular cross-section of the rotating screw 4, and plays a role in transitional force transmission, while also playing a role in lateral shallow stiffening of the force transmission plate 31, thereby reducing the risk of instability of the force transmission plate 31 under axial pressure.

[0049] Since the prestressed tendons 0 need to pass between the connecting plate 1 and the anchoring plate 2, the present invention can preferably be as follows: Figure 2As shown, the connecting plate 1 includes two respectively arranged on both sides of the prestressed tendon 0; the force transmission support 3 includes two respectively matched with the two connecting plates 1; it is also preferred that a plurality of preset through holes 22 for a row of prestressed tendons 0 to pass through are opened in the middle of the anchor plate 2; so that a prestressed positioning gap is formed between the force transmission support 3 and between the two connecting plates 1, and by reasonably selecting the width size of the anchor plate 2 and adjusting the gap between the two connecting plates 1, it can adapt to the requirements of different prestressed diameters, quantities and positions of arranging the prestressed tendons 0.

[0050] The present invention is preferably, Figure 4 As shown, it also includes: it also includes: a stiffening structure 5 that can be fixed to the inclined structure end face 100; the stiffening structure 5 is fixed to the other side of the inclined structure end face 100 opposite to the setting of the connecting plate 1; the stiffening structure 5 includes: two second stiffening plates 51 and two third stiffening plates 52, both of which are perpendicular to the inclined structure end face 100; the two second stiffening plates 51 and the two third stiffening plates 52 are surrounded by the prestressed tendon 0, the second stiffening plates 51 are perpendicular to the third stiffening plates 52, and the second stiffening plates 51 and the third stiffening plates 52 are both provided with pin holes 53 for concrete injection; it should be noted that the stiffening structure 5 is fixed to the other side of the inclined structure end face 100 opposite to the setting of the connecting plate 1, which means that the stiffening structure 5 and the inclined structure end face 100 are respectively located on both sides of the inclined structure end face 100, that is, different sides, preferably, as Figure 4 As shown, the connecting plate 1 is arranged on the side (outside) of the inclined structure end face 100 away from the connected building (such as a bridge) structure, and the stiffening structure 5 is arranged on the side (inside) of the inclined structure end face 100 connected to the building (such as a bridge) structure. After the concrete of the building structure is poured, the stiffening structure 5 can be connected to the concrete of the building structure.

[0051] Preferably, Figure 4 As shown, the stiffening structure 5 is configured as a lattice-type front anchor surface stiffening device consisting of a second stiffening plate 51 and a third stiffening plate 52, which is arranged on the inner side of the structural end face 4 as a permanent component, and is used to stiffen the inclined front anchor surface 4 of the structure. The second stiffening plate 51 and the third stiffening plate 52 are orthogonally arranged in the plane of the structural end face, and the two can preferably be connected by welding, which can suppress the local deformation and instability of the structural end face under the action of prestress, and reduce the prestress loss caused by the pressure deformation of the structural end face.

[0052] Preferably, pin holes 53 are provided on the second stiffening plates 51 and the third stiffening plates 52 in the lattice stiffening structure 5. Preferably, the pin holes 53 are circular holes, so that after the concrete inside the structure solidifies, a plug effect can be formed in the pin holes 53, which is beneficial to the mutual connection between the lattice stiffening structure 5 and the concrete inside the structure.

[0053] Example 2

[0054] On the basis of Example 1, the present invention further provides a prestressed anchoring method for an inclined structure end face, using the above-mentioned anchoring device for the inclined structure end face, comprising the following steps: according to the distribution form of multiple prestressed tendons 0 on the inclined structure end face 100, a plurality of anchoring units 200 of the inclined structure end face 100 are arranged, and the anchoring units 200 can be a row with an equal number of prestressed tendons 0, or a row with unequal numbers of prestressed tendons 0. In order to facilitate the adjustment of the steering of the force transmission support 3, it is preferred to set the prestressed tendons 0 as a row of prestressed tendons 0 as an anchoring unit 200; it is also preferred that, as Figure 6 As shown, in order to facilitate the design of the anchoring device or the calculation of the applied prestress, the prestressed tendon 0 can be divided into a number of anchoring units 200 of equal number and the same arrangement; a number of anchoring devices for the inclined structure end face corresponding to the anchoring units 200 are installed on the outer side of the inclined structure end face 100; the rotating screw 4 is rotated to drive the force transmission support 3 to deflect along the extension direction of the prestressed tendon 0, so that the force transmission support 3 is parallel to the prestressed tendon 0, and the locking seat 11 is locked; according to the required prestress value of each anchoring unit 200, a tensioning force corresponding to the prestress value is applied to the prestressed tendon 0 of each anchoring unit 200, and each prestressed tendon 0 is anchored to the anchor plate 2 with an anchor 6; the state after anchoring is referenced Figure 5 and Figure 6 As shown, a plurality of anchoring units 200 are formed on the inclined structure end surface 100 .

[0055] Specifically, the anchoring area division: according to the distribution form of the prestressed steel strands on the end surface of the structure, the prestressed anchoring area is appropriately divided, and it is appropriate to anchor 1 to 8 prestressed steel strands in each area, and it is appropriate to arrange them in 1 to 2 rows. Adjust the prestressed anchoring angle: loosen the locking bolt 112, turn the rotating screw 4 to initially adjust the angle, so that the two force transmission plates 31 are roughly parallel to the prestressed tendons 0, and a row of prestressed tendons 0 are roughly parallel to the two force transmission plates 31. Put the force transmission square tube 32 and the anchor plate 2 as a whole on the top of the two force transmission plates 31, and fine-tune the rotation angle so that the prestressed tendons 0 pass through the preset through holes 22 of the rear anchor plate 2. During the fine-tuning process, the force transmission plate 31 can freely expand and contract in the force transmission square tube 32. When the prestressed tendons 0 pass through the preset through holes 22 without contact friction with the inner wall of the preset through holes 22, it is considered that the rear anchor plate 2 is perpendicular to the prestressed tendons 0. Then, the locking bolt 112 is tightened to achieve a tightening and locking effect on the rotating screw rod 4 , and the force transmission plate 31 and the force transmission square tube 32 are reliably connected by locking the locking seat 11 .

[0056] Preferably, in each anchoring unit 200, a stiffening structure 5 is provided corresponding to the inclined structural end face 100 and the other side where the connecting plate 1 is provided, so that each anchoring unit 200 and the stiffening structure 5 system forms a lattice-type multiple rigid stiffening system inside and outside the inclined structural end face 100, which can effectively limit deformation under the anchor, reduce prestress loss, and realize safe and reliable prestressed anchoring.

[0057] Prestressing release: The prestressed tendons 0 are tensioned in sections at the end faces of the inclined structure and anchored with prestressed anchors 6. After the concrete is poured into the structure and reaches the designed strength, the prestressed tendons 0 are cut off at the prestressed positioning gaps between the two connecting plates 1, the two force transfer plates 31, and the two force transfer square tubes 32 to complete the prestressing release, so that the prestressing force is transferred from the anchoring device to the concrete inside the structure, so as to achieve the effect of applying prestress to the concrete and improving the crack resistance and durability.

[0058] After the prestressing is completed, the connecting bolts of the connecting plate 1 can be unscrewed, and the anchoring device for the inclined structure end face can be removed as a whole, and then reused for the prestressing anchoring of other structure end faces.

[0059] Example 3

[0060] On the basis of Example 1 or 2, the present invention also provides an installation method for an anchoring device for an inclined structural end face, and the installation of the above-mentioned anchoring device for an inclined structural end face includes the following steps: fixing the connecting plate 1 to the inclined structural end face 100; welding the rotating screw 4 to the force transmission plate 31, the force transmission plate 31 and the rotating screw 4 are integrally connected to the connecting plate 1, so that the rotating screw 4 is rotatably connected to the connecting plate 1; welding the anchor plate 2 and the force transmission square tube 32; connecting the force transmission square tube 32 and the anchor plate 2 to the force transmission plate 31 as a whole, so that the prestressed tendon 0 passes through the anchor plate 2; telescopically adjusting the relative position of the force transmission plate 31 and the force transmission square tube 32, so that the anchor plate 2 is located at the position where the prestressed tendon 0 is to be anchored, locking the limit bolt 33, so that the position of the force transmission plate 31 and the force transmission square tube 32 is locked; rotating the rotating screw 4, so that the anchor plate 2 is deflected along the extension direction of the prestressed tendon 0 to be perpendicular to the prestressed tendon 0, and locking the locking seat 11 to lock the rotating screw 4.

[0061] Preferably, the installation method of the anchoring device for the end face of the inclined structure also includes the following steps: installing a stiffening structure 5 on the other side of the end face of the inclined structure 100 opposite to the connecting plate 1; providing a flexible pad 42 at the bottom of the rotating screw 4; providing a first stiffening plate 21 at the contact line between the force transmission square tube 32 and the anchor plate 2, installing the first stiffening plate 21, the force transmission square tube 32 and the anchor plate 2, and welding the first stiffening plate 21 to the anchor plate 2 and the force transmission square tube 32.

[0062] Specifically, a stiffening structure 5 is installed on the other side of the inclined structure end face 100 opposite to the connection plate 1. The stiffening structure 5 is configured to be a structure composed of plates that can enhance the rigidity of the inclined structure end face 100. Figure 4 As shown, the stiffening structure 5 forms a lattice-type rigid stiffening system; in order to provide a flexible pad 42 at the bottom of the rotating screw, specifically, a locking seat 11 (screw locker) is welded to the connecting plate 1 (front anchor surface support pad), and after the rotating screw 4 and the force transmission plate 31 are integrally inserted into the locking seat 11, a flexible pad 42 (rubber pad) is inserted into the bottom of the rotating screw 4, and then another locking seat 11 (screw locker) is put on and welded to the connecting plate 1, so as to achieve the purpose of providing a flexible pad 42 at the bottom of the rotating screw 4; it should be noted that the specific structure of the flexible pad 42 is a rubber pad, which can be preferably referred to Figure 3 As shown, the state after the flexible pad 42 is installed, the first stiffening plate 21 is installed on the force transmission square tube 32 and the anchor plate 2, so that the first stiffening plate 21 is welded to the anchor plate 2 and the force transmission square tube 32. The first stiffening plate 21 is a plate member that can strengthen the connection between the force transmission square tube 32 and the anchor plate 2. The preferred reference Figure 1 As shown, the first stiffening plate 21 is installed as shown in Figure 1 As shown, it is located at the connection line between the force transmission square tube 32 and the anchor plate 2.

[0063] It should be noted that the contact line between the force transmission square tube 32 and the anchor plate 2 is provided with a first stiffening plate 21, Figure 1 The “contact line” is understood to be that the force transmission square tube 32 is connected perpendicularly to the anchor plate 2, and the connection between the force transmission square tube 32 and the anchor plate 2 can be approximated as a line connection relative to the plate surface of the anchor plate 2, which is understood to be that a first stiffening plate 21 is provided at the connection.

[0064] Device disassembly: unscrew the connecting bolts of the connecting plate 1, remove the anchoring device for the inclined structure end face as a whole, and reuse it for the prestressed anchoring of other structure end faces.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anchoring device for the end face of an inclined structure, characterized in that: include: A connecting plate (1), an anchor plate (2) and a force transmission support member (3); the connecting plate (1) is used for being fixedly connected to the end surface (100) of the inclined structure; the anchor plate (2) allows the prestressed tendons (0) to pass through and can anchor the prestressed tendons (0) to its plate surface; one end of the force transmission support member (3) is perpendicular to the plate surface of the anchor plate (2) and is fixedly connected to the anchor plate (2); the other end of the force transmission support member (3) is rotatably connected to the connecting plate (1) via a rotating screw (4); the rotation of the rotating screw (4) can drive the force transmission support member (3) to rotate, thereby driving the anchor plate (2) to deflect along the extension direction of the prestressed tendons (0), so that the plate surface of the anchor plate (2) is perpendicular to the prestressed tendons (0); the connecting plate (1) is provided with a locking seat (11) for locking the rotating screw (4); The force transmission support member (3) comprises: a force transmission plate (31) and a force transmission square tube (32); one end of the force transmission plate (31) is fixedly connected to the rotating screw (4), and the other end of the force transmission plate (31) is telescopically connected to the force transmission square tube (32); the force transmission square tube (32) is perpendicular to the anchor plate (2) and fixedly connected to the anchor plate (2); a limit bolt (33) for locking the relative position is provided between the force transmission plate (31) and the force transmission square tube (32); The locking seat (11) is provided with a clamping groove (111) for rotationally connecting the rotating screw rod (4); the inner wall of the clamping groove (111) is provided with internal teeth; both ends of the rotating screw rod (4) are provided with external teeth that can mesh with the internal teeth; the clamping groove (111) is provided with a locking bolt (112); the locking bolt (112) can be locked to the locking seat (11) to make the rotating screw rod (4) mesh with the clamping groove (111).

2. The anchoring device for the end surface of an inclined structure according to claim 1, characterized in that: A first stiffening plate (21) is further provided between the anchor plate (2) and the force transmission square tube (32); the first stiffening plate (21) is fixedly connected to the force transmission square tube (32) and the anchor plate (2), respectively; the first stiffening plate (21) is perpendicular to the force transmission square tube (32) and the anchor plate (2); a stiffening rib (41) is provided at the connection between the force transmission plate (31) and the rotating screw (4); the stiffening rib (41) is triangular in shape, and the bottom surface and side surface of the stiffening rib (41) are respectively welded to the rotating screw (4) and the force transmission plate (31).

3. The anchoring device for the end surface of an inclined structure according to claim 1, characterized in that: The connecting plate (1) comprises two connecting plates respectively arranged on both sides of the prestressed tendon (0); and the force transmission support member (3) comprises two connecting plates respectively matched with the two connecting plates (1).

4. The anchoring device for the end surface of an inclined structure according to any one of claims 1 to 3, characterized in that: Also includes: A stiffening structure (5) capable of being fixed to an end face (100) of an inclined structure; the stiffening structure (5) is fixed to the other side of the end face (100) of the inclined structure opposite to the connection plate (1); the stiffening structure (5) comprises: two second stiffening plates (51) and two third stiffening plates (52) both perpendicular to the end face (100) of the inclined structure; the two second stiffening plates (51) and the two third stiffening plates are surrounded by a prestressed tendon (0), the second stiffening plates (51) are perpendicular to the third stiffening plates (52), and the second stiffening plates (51) and the third stiffening plates (52) are both provided with pin holes (53) for concrete injection.

5. The anchoring device for the end surface of an inclined structure according to claim 1, characterized in that: A flexible pad (42) is provided at the gap between the rotating screw (4) and the connecting plate (1); the flexible pad (42) is provided with a groove (421) matching the shape of the rotating screw (4).

6. A prestressed anchoring method for the end face of an inclined structure, characterized in that: The following steps are involved: According to the distribution form of the plurality of prestressed tendons (0) on the inclined structure end surface (100), the plurality of prestressed tendons (0) on the inclined structure end surface (100) are divided into a plurality of anchoring units (200); A plurality of anchoring devices for the inclined structure end face according to any one of claims 1 to 5 corresponding to the anchoring units (200) are installed on the outer side of the inclined structure end face (100); the rotating screw (4) is rotated to drive the force transmission support member (3) to deflect along the extension direction of the prestressed tendon (0), so that the force transmission support member (3) is parallel to the prestressed tendon (0), and the locking seat (11) is locked; According to the prestress value required by each anchoring unit (200), a preset prestress value is applied to the prestressed tendons (0) of each anchoring unit (200), and each prestressed tendon (0) is anchored to the anchor plate (2) using an anchor (6).

7. A method for installing an anchoring device for an inclined structure end surface, installing the anchoring device for an inclined structure end surface according to any one of claims 1 to 5, comprising the following steps: The connecting plate (1) is fixed to the end surface (100) of the inclined structure; the rotating screw (4) is welded to the force transmission plate (31), and the force transmission plate (31) and the rotating screw (4) are integrally connected to the connecting plate (1), so that the rotating screw (4) is rotatably connected to the connecting plate (1); The anchor plate (2) and the force transmission square tube (32) are welded; the force transmission square tube (32) and the anchor plate (2) are integrally connected to the force transmission plate (31) so that the prestressed tendons (0) pass through the anchor plate (2); The relative positions of the force transmission plate (31) and the force transmission square tube (32) are adjusted by telescoping so that the anchor plate (2) is located at the position where the prestressed tendon (0) is to be anchored, and the limit bolts (33) are tightened so that the positions of the force transmission plate (31) and the force transmission square tube (32) are locked; The rotating screw rod (4) is rotated to deflect the anchor plate (2) along the extension direction of the prestressed tendon (0) to be perpendicular to the prestressed tendon (0), and the locking seat (11) is locked to lock the rotating screw rod (4).

8. The method for installing an anchoring device for an inclined structure end surface according to claim 7, characterized in that: The following steps are also included: A stiffening structure (5) is installed on the other side of the inclined structure end face (100) opposite to the connection plate (1); a flexible pad (42) is provided at the bottom of the rotating screw (4); a first stiffening plate (21) is provided at the contact line between the force transmission square tube (32) and the anchor plate (2); the first stiffening plate (21) is installed with the force transmission square tube (32) and the anchor plate (2) so that the first stiffening plate (21) is welded to the anchor plate (2) and the force transmission square tube (32).

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