A temporary consolidation system for continuous beam bridge piers, continuous beam bridge and construction method

Abstract

The present invention discloses a temporary consolidation system for continuous beam bridge piers, a continuous beam bridge and a construction method, which relate to the technical field of bridge construction, and include a prestressed cable and a temporary support. The two ends of the prestressed cable are respectively used to be fixed to the main beam and the pier. The temporary support is used to be arranged between the main beam and the pier. The height of the temporary support matches the spacing between the main beam and the pier. The temporary support includes two fitted support seats. The fitted sides of the two support seats are both provided with strip grooves, and the strip grooves on the two support seats are combined to form a through hole for accommodating the prestressed cable. The present invention can provide a better temporary consolidation effect of the piers and beams, and is easy to install and remove.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a temporary consolidation system for continuous beam piers, a continuous beam bridge and a construction method. Background Art

[0002] When a continuous beam bridge is under cantilever construction, as the length of the cantilever section continues to increase, an unbalanced moment (overturning bending moment) may be generated, causing the main beam to overturn. In order to solve the unbalanced moment problem during the cantilever construction of the continuous beam main beam, the project usually adopts the method of setting up temporary column brackets next to the pier or temporarily consolidating the pier beam on the pier top.

[0003] Temporary column brackets beside piers usually use steel tube concrete columns supported on the pedestal, which have good mechanical properties and can withstand large pressure. However, the cost of steel tube concrete is very high, it is difficult to dismantle, large-scale mechanical equipment is required, the construction period is very long, and there are also disadvantages such as the cut materials cannot be circulated and recycled and the economic performance is poor.

[0004] The method for temporary consolidation of pier beams at the pier top is to set up temporary supports for pier beam consolidation. The temporary supports for pier beam consolidation are generally arranged on both sides of the supports at the pier top along the bridge direction to resist unbalanced moments.

[0005] Temporary bearings can be divided into plain concrete bearings, reinforced concrete bearings, concrete sulfur mortar bearings and concrete-filled steel tube bearings.

[0006] Among them, plain concrete bearings and reinforced concrete bearings have good compressive performance; however, the construction period of concrete bearings and reinforced concrete bearings is long, the dismantling is difficult and the efficiency is low, and the use of mechanical demolition is likely to cause damage to the permanent bearings, beam structures or pier top structures, affecting the appearance or performance of the main structure. At the same time, the temporary bearings that are cut off and demolished cannot be recycled or reused, which will cause great waste.

[0007] Concrete sulfur mortar supports are pre-configured with sulfur mortar. When dismantling, the sulfur mortar layer is usually melted by electric melting or a blowtorch to achieve removal. However, due to factors such as the mix ratio of sulfur mortar, the fragility of the resistance wire, and the aging of temporary supports, the electric melting effect is not ideal. There are also problems such as fragility of the resistance wire, unsatisfactory melting effect, and environmental pollution.

[0008] Steel tube concrete bearings have good compressive resistance, but similar to temporary column brackets beside piers, they have disadvantages such as high cost, difficulty in dismantling, long construction period, and waste of materials. Summary of the invention

[0009] In view of the defects existing in the prior art, the purpose of the present invention is to provide a temporary consolidation system for piers and beams of a continuous beam bridge, a continuous beam bridge and a construction method, which can provide better temporary consolidation effect of piers and beams and facilitate installation and dismantling.

[0010] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0011] In a first aspect, a temporary consolidation system for a continuous beam bridge pier is provided, comprising:

[0012] Prestressed cables, two ends of which are respectively used to be fixed to the main beam and the pier;

[0013] A temporary support is used to be arranged between the main beam and the pier. The height of the temporary support matches the spacing between the main beam and the pier. The temporary support includes two fitted support seats. One side of the two fitted support seats is provided with a strip groove, and the strip grooves on the two support seats are combined to form a through hole for accommodating the prestressed cable.

[0014] On the basis of the above technical solution, a beam end anchoring system is provided at one end of the prestressed cable, and the beam end anchoring system includes an anchor plate and a first anchor clamp. The anchor plate is used to be buried on the side of the main beam away from the temporary support, and the first anchor clamp is arranged on one side of the anchor plate. A first through hole is provided on the anchor plate, and the prestressed cable passes through the first through hole and is fixed to the first anchor clamp.

[0015] Based on the above technical solution, the beam end anchoring system also includes a first spiral reinforcement, which is sleeved on the prestressed cable, close to and arranged on the side of the anchor plate away from the first anchor clamp, and is used to be buried in the main beam.

[0016] On the basis of the above technical solution, a pier end anchoring system is provided at one end of the prestressed cable, and the pier end anchoring system includes a second anchor clamp, which is fixed to the prestressed cable and is used to be pre-buried in the bridge pier.

[0017] On the basis of the above technical solution, the pier end anchoring system further includes a second spiral reinforcement, the second spiral reinforcement is sleeved on the prestressed cable, and the second spiral reinforcement is used to be buried in the bridge pier.

[0018] On the basis of the above technical solution, the pier-beam temporary consolidation system also includes a temporary support positioning system, which includes a first embedded part and a second embedded part, the first embedded part is provided with a second through hole, the second embedded part is provided with a third through hole, the prestressed cable passes through the second through hole and the third through hole, the first embedded part is partially embedded in the pier, the second embedded part is partially embedded in the main beam, and the first embedded part and the second embedded part are respectively fixed to both ends of the temporary support.

[0019] On the basis of the above technical solution, the prestressed cable includes a plurality of prestressed tendon bundles.

[0020] On the basis of the above technical solution, the pier-beam temporary consolidation system further includes a plurality of prestressed pipes, the prestressed pipes are sleeved on the prestressed tendons, and the prestressed pipes are used to be buried in the main beam.

[0021] In a second aspect, a continuous beam bridge is also provided, comprising:

[0022] bridge piers;

[0023] A plurality of bridge supports, wherein the bridge supports are arranged on the bridge piers;

[0024] A main beam, wherein the main beam is arranged on a plurality of the bridge supports;

[0025] In the above-mentioned pier-beam temporary consolidation system, the temporary support is arranged between the main beam and the pier, and the two ends of the prestressed cable are respectively fixed to the main beam and the pier.

[0026] In a third aspect, a construction method using the above-mentioned pier-beam temporary consolidation system is also provided, which specifically comprises the following steps:

[0027] Preburying one end of the prestressed cable in the bridge pier;

[0028] Placing the temporary support at the position where the prestressed cable is embedded in the pier;

[0029] The other end of the prestressed cable is passed through the through hole and fixed to the main beam.

[0030] Compared with the prior art, the advantages of the present invention are:

[0031] (1) The temporary consolidation system for continuous beam bridge piers and the continuous beam bridge of the present invention can provide bidirectional tension and compression constraints by means of prestressed cables and temporary supports, and can provide better temporary consolidation effect of piers and beams than the existing single supports. At the same time, the temporary supports can be removed and the prestressed cables between the main beam and the piers can be cut off by fitting two supporting seats, without causing damage to the bridge supports, beam structure or pier top structure, and the system has the characteristic of easy dismantling.

[0032] (2) The construction method of the present invention adopts a temporary consolidation system for continuous beam bridge piers and beams. By fixing the two ends of the prestressed cable on the pier and the main beam respectively, a tensile constraint can be provided. By setting a temporary support between the pier and the main beam, a compressive constraint can be provided. Through the cooperation of the prestressed cable and the temporary support, a tensile and compressive bidirectional constraint can be provided simultaneously in the same vertical direction of the pier and the main beam, which can achieve a better temporary consolidation effect of the piers and beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the transverse structure of a continuous beam bridge in an embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of the longitudinal structure of a continuous beam bridge in an embodiment of the present invention;

[0035] Figure 3 It is a structural schematic diagram of a temporary support in an embodiment of the present invention;

[0036] Figure 4 Schematic diagram of the structure of the support base in an embodiment of the present invention.

[0037] In the figure: 1-prestressed cable, 11-prestressed tendon bundle, 12-third spiral tendon, 2-temporary support, 21-support seat, 22 strip groove, 23-through hole, 3-beam end anchoring system, 31-anchor plate, 32-first anchor clamp, 33-first spiral tendon, 4-pier end anchoring system, 41-second anchor clamp, 42-second spiral tendon, 5-prestressed pipe, 6-temporary support positioning system, 61-first embedded part, 62-second embedded part, 7-bridge pier, 8-main beam, 9-bridge support. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0039] See also Figure 1 , Figure 3 and Figure 4 As shown, an embodiment of the present invention provides a temporary consolidation system for a continuous beam bridge pier, including a prestressed cable 1 and a temporary support 2, wherein the two ends of the prestressed cable 1 are respectively used to fix to the main beam 8 and the pier 7, and the temporary support 2 is used to be arranged between the main beam 8 and the pier 7, and the height of the temporary support 2 matches the spacing between the main beam 8 and the pier 7. Furthermore, the temporary support 2 is manufactured by welding multiple layers of square (or circular) steel plates, and the slopes of the upper and lower surfaces of the temporary support 2 match the top of the pier 7 and the lower edge of the main beam 8, that is, the specifications and size design of the temporary support 2 should take into account the spatial relationship of the arrangement position, and the temporary support 2 includes two fitted support seats 21, and a strip groove 22 is provided on one side of the two support seats 21, and the strip grooves 22 on the two support seats 21 are combined to form a through hole 23 for accommodating the prestressed cable 1.

[0040] By combining the prestressed cable 1 and the temporary support 2, a bidirectional tension and compression constraint can be provided, and the force is clear. The temporary support 2 is compressive and the prestressed cable 1 is tensile, and they jointly resist the unbalanced bending moment (overturning moment) during the cantilever construction of the continuous beam. Compared with the existing single support, it can provide a better temporary consolidation effect of the pier and beam; at the same time, when demolition is required, the two fitted support seats 21 are first removed, and then the prestressed cable 1 between the main beam 8 and the pier 7 is cut off, that is, the temporary support 2 can be removed by the two fitted support seats 21, thereby reserving space for cutting the prestressed cable 1 between the main beam 8 and the pier 7, ensuring the subsequent cutting operation of the prestressed cable 1 between the main beam 8 and the pier 7, wherein the removal of the temporary support 2 and the cutting operation of the prestressed cable 1 will not cause damage to the bridge support, the beam structure or the pier top structure, and has the characteristic of simple demolition.

[0041] A beam end anchoring system 3 is provided at one end of the prestressed cable 1, and the beam end anchoring system 3 includes an anchor plate 31 and a first anchor clamp 32. The anchor plate 31 is used to be buried on the side of the main beam 8 away from the temporary support 2. The first anchor clamp 32 is arranged on one side of the anchor plate 31. A first through hole is provided on the anchor plate 31. The prestressed cable 1 passes through the first through hole and is fixed to the first anchor clamp 32. Through the setting of the beam end anchoring system 3, one end of the prestressed cable 1 can be fixed on the main beam 8, ensuring that the prestressed cable 1 can act on the main beam 8, thereby achieving a tensile effect on the main beam 8.

[0042] See also Figure 1 and Figure 2 As shown, the beam end anchoring system 3 also includes a first spiral reinforcement 33, which is sleeved on the prestressed cable 1, and is close to and arranged on the side of the anchor plate 31 away from the first anchor clamp 32, and the first spiral reinforcement 33 is used to be buried in the main beam 8. Through the arrangement of the first spiral reinforcement 33, the local stress concentration of concrete at the anchor plate 31 caused by the subsequent tensioning of the prestressed cable 1 can be avoided, thereby avoiding damage.

[0043] A pier end anchoring system 4 is provided at one end of the prestressed cable 1. The pier end anchoring system 4 includes a second anchor clamp 41. The second anchor clamp 41 is fixed to the prestressed cable 1. The second anchor clamp 41 is used to be pre-buried in the pier 7. By setting the pier end anchoring system 4, one end of the prestressed cable 1 can be fixed on the pier 7, ensuring that the prestressed cable 1 can act on the pier 7, thereby achieving a tensile effect on the pier 7.

[0044] The pier end anchoring system 4 also includes a second spiral reinforcement 42, which is sleeved on the prestressed cable 1 and is used to be buried in the pier 7. Through the arrangement of the second spiral reinforcement 42, the local stress concentration of concrete at the second anchor clamp 41 caused by the subsequent tensioning of the prestressed cable 1 can be avoided, resulting in damage.

[0045] Furthermore, the types of the first anchor clamp 32 and the second anchor clamp 41 should be selected according to the type of the prestressed tendon 11. Common first anchor clamps 32 and second anchor clamps 41 include screw end rod anchors, bar anchors, swaged head anchors, tapered screw anchors, clip-type anchors, grip-type anchors, etc.

[0046] The pier-beam temporary consolidation system also includes a temporary support positioning system 6, which includes a first embedded part 61 and a second embedded part 62. The first embedded part 61 is provided with a second through hole, and the second embedded part 62 is provided with a third through hole. The prestressed cable 1 passes through the second through hole and the third through hole. The first embedded part 61 is partially embedded in the pier 7, and the second embedded part 62 is partially embedded in the main beam 8. The first embedded part 61 and the second embedded part 62 are respectively fixed to the two ends of the temporary support 2. Through the arrangement of the first embedded part 61 and the second embedded part 62, the temporary support 2 can be fixed to the pier 7 and the main beam 8, ensuring that the temporary support 2 will not slide out of the area between the pier 7 and the main beam 8 when completing the compressive constraint, thereby effectively completing the compressive constraint of the continuous beam bridge.

[0047] The temporary support 2 and the temporary support positioning system 6 are both made of welded steel plates. The temporary support 2 is fixedly connected to the first embedded part 61, and can adapt to the situation where the top surface of the pier 7 is not horizontal. The temporary support 2 is fixedly connected to the second embedded part 62, and can adapt to the situation where the bottom surface of the main beam 8 is not horizontal, so that it has better compressive resistance and can ensure uniform force.

[0048] The temporary support 2 and the temporary support positioning system 6 can also be connected by welding connecting steel plates and other connecting parts on the temporary support positioning system 6, mainly to prevent the temporary support 2 from shifting due to the uneven top surface of the bridge or the bottom surface of the main beam after being subjected to force.

[0049] Among them, when the temporary support 2 is fixed to the first embedded part 61 and the second embedded part 62 respectively, they are fixed by reinforcement parts. When the system is converted after the main beam construction is completed, it is only necessary to remove the reinforcement parts and pull out the temporary support 2. It has the characteristics of simple and quick dismantling, short construction period, recyclable materials and good economic performance.

[0050] Furthermore, when the first embedded part 61 and the second embedded part 62 are respectively embedded in the pier 7 and the main beam 8, positioning embedded parts are provided on one side of the first embedded part 61 and the second embedded part 62 close to the pier 7 and the main beam 8, respectively, to ensure that the first embedded part 61 and the second embedded part 62 can be stably fixed on the pier 7 and the main beam 8 when one side of the first embedded part 61 and the second embedded part 62 is exposed from the pier 7 and the main beam 8, respectively.

[0051] The first embedded part 61 is welded by steel plates and threaded steel embedded parts. The threaded steel embedded parts are embedded in the top of the pier 7. The temporary support 2 and the first embedded part 61 are provided with circular holes for the prestressed tendons 11 to pass through. The first embedded part 61 should be accurately positioned when embedded. When the temporary support 2 is installed, it should be aligned with the circular hole reserved on the first embedded part 61 to ensure that each group of temporary supports 2 can provide the main beam 8 with the same, symmetrical and balanced support.

[0052] The prestressed cable 1 includes a plurality of prestressed tendons 11. The number and arrangement of the prestressed tendons 11 are flexible and can be adapted to different continuous beams. The pier-beam temporary consolidation system also includes a plurality of prestressed pipes 5. The prestressed pipes 5 are sleeved on the prestressed tendons 11, and the prestressed pipes 5 are used to be buried in the main beam 8. The arrangement of the prestressed pipes 5 facilitates the prestressed tendons 11 to pass through the main beam 8 and be fixed to the beam end anchoring system 3. After the prestressed tendons 11 are tensioned, the prestressed pipes 5 are cast and sealed on the upper side of the main beam 8. Furthermore, grouting holes are reserved on the main beam 8, and the grouting holes are connected to the prestressed pipes 5 and the outside atmosphere. After the prestressed tendons 11 are tensioned, the casting operation of the prestressed pipes 5 is completed through the grouting holes.

[0053] Among them, the prestressed tendon bundle 11 can be made of steel wire, steel strand, ordinary coarse steel bar or fine-rolled threaded steel bar, preferably steel wire or steel strand. The embodiment of the present invention takes steel strand as an example. The specific selection scheme of the prestressed tendon bundle 11 and the anchorage length and tensioning force of the prestressed tendon bundle 11 should take into account the maximum overturning force of the main beam 8 construction to ensure that the prestressed tendon bundle 11 is still effective under the most unfavorable working conditions, that is, the tensioning force should be controlled during the entire cantilever construction period and before the temporary consolidation system of the pier beam is released. It will not be completely offset or tensioned beyond the design strength. The range. Furthermore, the tensioning force of the prestressed tendon bundle 11 should not exceed 60% of the design strength of the material.

[0054] The arrangement positions of the prestressed tendons 11 and the prestressed pipes 5 should refer to the specifications and structural forms of the main beam 8 to avoid collision between the prestressed tendons 11 and the prestressed pipes 5 .

[0055] The forming methods of the prestressed pipe 5 include the buried pipe method and the extraction hole method. The prestressed pipe 5 includes a seamless steel pipe, an inflatable (water) hose or a corrugated pipe. Considering that the main beam 8 of the continuous beam bridge has a large beam height, there is a large buoyancy and impact force when pouring concrete. In order to ensure the accurate positioning of the prestressed pipe 5 and ensure that the prestressed tendon bundle 11 can pass smoothly, hard pipes such as seamless steel pipes should be used preferentially.

[0056] The pier-beam temporary consolidation system also includes a third spiral reinforcement 12, which is sleeved on the prestressed cable 1, arranged close to the temporary support 2, and is used to be buried in the main beam 8. Through the arrangement of the third spiral reinforcement 12, it is possible to avoid the subsequent tensioning of the prestressed cable 1 causing local stress concentration in the concrete of the main beam 8 close to the temporary support 2 and causing damage.

[0057] Among them, the first spiral rib 33, the second spiral rib 42 and the third spiral rib 12 are all arranged in conjunction with the steel mesh, mainly to prevent cracking or damage to the structure caused by local stress concentration at the locations of the first spiral rib 33, the second spiral rib 42 and the third spiral rib 12.

[0058] See also Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a continuous beam bridge, including piers 7, main beams 8, multiple bridge supports 9 and multiple pier-beam temporary consolidation systems mentioned above, the bridge supports 9 are arranged on the piers 7, the main beams 8 are arranged on multiple bridge supports 9, the temporary supports 2 are arranged between the main beams 8 and the piers 7, and the two ends of the prestressed cable 1 are respectively fixed to the main beams 8 and the piers 7. Furthermore, the pier-beam temporary consolidation system is symmetrical about the main beam 8 along the bridge centerline and the pier 7 transverse to the bridge centerline, the temporary supports 2 and the arrangement position should be as far away from the boundary of the pier 7 as possible to prevent the pier 7 from being split and damaged due to excessive force after the main beam 8 is cast.

[0059] When constructing a continuous beam with a hanging basket cantilever, after the continuous beam is connected, the temporary support 2 is cut off symmetrically and synchronously. The temporary support 2 can be removed by flame cutting, mechanical cutting and other methods. When flame cutting is used, effective insulation measures should be taken to prevent the bridge support 9 (permanent support) from being damaged by heat. After removing the temporary support 2, the part of the prestressed cable 1 other than the main beam 8 and the pier 7 is cut off, thereby releasing the temporary consolidation and realizing the conversion from the temporary consolidation system and the bridge support 9 being jointly stressed to the bridge support 9 being stressed alone.

[0060] See also Figure 1 and Figure 2 As shown, the present invention also provides a construction method using the above-mentioned pier-beam temporary consolidation system, which specifically includes the following steps:

[0061] Embed one end of the prestressed cable 1 in the bridge pier 7;

[0062] Placing the temporary support 2 at the position where the prestressed cable 1 is embedded in the pier 7;

[0063] The other end of the prestressed cable 1 passes through the through hole 23 and is fixed to the main beam 8 .

[0064] The detailed steps for installing the temporary consolidation system of piers and beams and completing the construction of continuous beams are as follows:

[0065] Before pouring concrete of the pier 7, the specification, quantity and anchorage depth of the prestressed tendons 11 are determined based on the maximum anchorage force calculation;

[0066] Customize the temporary support 2 and the temporary support positioning system 6 according to the specifications of the main beam 8 and the pier 7, the distance between the bottom surface of the main beam 8 and the top surface of the pier 7, the slope and other parameters;

[0067] Determine the position of the prestressed pipe 5 according to the specifications and structural form of the main beam 8 and the distribution of the prestressed steel strands 11 on the main beam 8;

[0068] The reinforcement of the bridge pier 7 is tied, and the pier end anchoring system and the first embedded part 61, the bridge support 9, and the second spiral reinforcement 42 are embedded at the position determined by the design plan, wherein the prestressed tendon 11 is fixed to the pier end anchoring system;

[0069] Support the formwork of pier 7, pour the pier concrete and cure it to the designed strength;

[0070] After the temporary support 2 is accurately positioned, the temporary support 2 and the first embedded part 61 of the temporary support positioning system 6 are welded together, and the bridge support 9 is installed;

[0071] Build the bottom formwork of the main beam 8, tie the steel bars of the main beam 8, install the prestressed pipe 5 inside the main beam 8, install the third spiral reinforcement 12 and the second embedded part 62 at the bottom plate of the main beam 8, install the prestressed pipe 5 and thread the bundle according to the design requirements, and install the beam end anchoring system 3 at the tensioning end of the main beam 8.

[0072] Set up the side formwork of the main beam 8, pour the concrete of the main beam 8 and cure it to the designed strength;

[0073] Uniformly and symmetrically tension the prestressed tendons 11 of the beam end anchoring system 3 to the designed tension and anchor them, inject grout into the prestressed pipe 5, and maintain them to the designed strength;

[0074] The hanging basket cantilever construction continuous beam, after the continuous beam is closed, the temporary support 2 is cut off symmetrically and synchronously, and the prestressed tendons 11 are cut off and cut off outside the main beam 8 and the bridge pier 7 to release the temporary consolidation and realize the conversion from the pier-beam temporary consolidation system and the bridge support 9 being jointly stressed to the bridge support 9 being stressed alone;

[0075] Complete the subsequent work after releasing the temporary consolidation of piers and beams.

[0076] Among them, a groove is provided on the upper side of the main beam 8, and the beam end anchoring system 3 is anchored in the groove. After the grouting operation of the prestressed pipe 5 is completed, the groove is filled by pouring concrete. Furthermore, the prestressed tendon bundle 11 is passed through the bundle and tensioned on the top of the main beam 8, which can provide a larger operating space.

[0077] The temporary support 2, the second embedded part 62, and the prestressed tendon 11 should be arranged on the web part of the main beam 8, so that the temporary support 2 and the prestressed tendon 11 act on the web area of ​​the main beam 8, thereby avoiding damage to the structure of the main beam 8; the tensioning of the prestressed tendon 11 should be symmetrical and uniform, usually using an electric high-pressure oil pump, and should be used in conjunction with the anchor system.

[0078] The present invention is not limited to the above-mentioned embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A temporary consolidation system for continuous beam piers, characterized in that: include: A prestressed cable (1), wherein two ends of the prestressed cable (1) are respectively used to be fixed to a main beam (8) and a bridge pier (7); A temporary support (2), the temporary support (2) being used to be arranged between the main beam (8) and the bridge pier (7), the height of the temporary support (2) matching the spacing between the main beam (8) and the bridge pier (7), the temporary support (2) comprising two fitted support seats (21), a strip groove (22) being provided on one side of the two fitted support seats (21), and the strip grooves (22) on the two support seats (21) are combined to form a through hole (23) for accommodating the prestressed cable (1); A beam end anchoring system (3) is provided at one end of the prestressed cable (1), and the beam end anchoring system (3) comprises an anchor pad (31) and a first anchor clamp (32), wherein the anchor pad (31) is used to be buried on a side of the main beam (8) away from the temporary support (2), and the first anchor clamp (32) is provided on one side of the anchor pad (31), and a first through hole is provided on the anchor pad (31), and the prestressed cable (1) passes through the first through hole and is fixed to the first anchor clamp (32); One end of the prestressed cable (1) is provided with a pier end anchoring system (4), the pier end anchoring system (4) comprising a second anchor clamp (41), the second anchor clamp (41) being fixed to the prestressed cable (1), and the second anchor clamp (41) being used for being pre-buried in the bridge pier (7); The pier-beam temporary consolidation system also includes a temporary support positioning system (6), which includes a first embedded part (61) and a second embedded part (62), the first embedded part (61) is provided with a second through hole, the second embedded part (62) is provided with a third through hole, the prestressed cable (1) passes through the second through hole and the third through hole, the first embedded part (61) is partially embedded in the pier (7), the second embedded part (62) is partially embedded in the main beam (8), and the first embedded part (61) and the second embedded part (62) are respectively fixed to two ends of the temporary support (2).

2. A temporary consolidation system for continuous beam bridge piers as claimed in claim 1, characterized in that: The beam end anchoring system (3) further comprises a first spiral rib (33), wherein the first spiral rib (33) is sleeved on the prestressed cable (1), the first spiral rib (33) is close to and arranged on a side of the anchor pad (31) away from the first anchor clamp (32), and the first spiral rib (33) is used to be buried in the main beam (8).

3. A temporary consolidation system for continuous beam piers as claimed in claim 1, characterized in that: The pier end anchoring system (4) further comprises a second spiral tendon (42), wherein the second spiral tendon (42) is sleeved on the prestressed cable (1), and the second spiral tendon (42) is used to be buried in the pier (7).

4. A temporary consolidation system for continuous beam bridge piers as claimed in claim 1, characterized in that: The prestressed cable (1) comprises a plurality of prestressed tendon bundles (11).

5. A temporary consolidation system for continuous beam bridge piers as claimed in claim 4, characterized in that: The pier-beam temporary consolidation system further comprises a plurality of prestressed pipes (5), wherein the prestressed pipes (5) are sleeved on the prestressed tendon bundles (11), and the prestressed pipes (5) are used to be buried in the main beam (8).

6. A continuous beam bridge, characterized in that: include: Bridge piers (7); A plurality of bridge supports (9), wherein the bridge supports (9) are arranged on the bridge piers (7); A main beam (8), wherein the main beam (8) is arranged on a plurality of bridge supports (9); A plurality of pier-beam temporary consolidation systems according to any one of claims 1 to 5, wherein the temporary support (2) is arranged between the main beam (8) and the pier (7), and the two ends of the prestressed cable (1) are respectively fixed to the main beam (8) and the pier (7).

7. A construction method using the pier-beam temporary consolidation system as claimed in claim 1, characterized in that: The specific steps include: Pre-burying one end of the prestressed cable (1) in a bridge pier (7); Placing the temporary support (2) at the position where the prestressed cable (1) is embedded in the pier (7); The other end of the prestressed cable (1) is passed through the through hole (23) and fixed to the main beam (8).

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