Bridge pylon construction method
The bridge tower design, which uses inclined, curved tower columns and anchor cables, solves the problem of insufficient wind resistance and load-bearing capacity of existing towers, achieving higher stability and load-bearing capacity, and providing a convenient construction method.
Patent Information
- Application Number
- CN202611229849.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-13
- Publication Date
- 2026-11-03
AI Technical Summary
Existing bridge tower structures have limited wind resistance and load-bearing capacity, making them prone to swaying under wind force and lacking sufficient load-bearing capacity.
The structure employs an inclined, curved tower column, which is divided into upper, middle, and lower sections and connected by anchor cables and rigid connecting rods. Combined with a hollow structure and maintenance ladder design, the stability and connection strength of the tower column are enhanced, and the construction is carried out using a mold combination casting technology.
It improves the wind resistance and load-bearing capacity of bridge towers, while enhancing the convenience and safety of construction, and ensuring the stability and durability of the towers.
Smart Images
Figure CN123027799A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bridge construction technology, and in particular to a method for constructing bridge pylons. Background Technology
[0002] In the construction of existing bridges (such as viaducts), there are two methods for supporting the bridge deck. One method is to support the cap beams through piers, with both ends of the bridge deck supported by the cap beams. The other method is to construct cable towers, which, together with cables, fix the bridge deck in place. Existing cable towers have vertical columns, with two columns connected by horizontal beams. This type of cable tower has poor wind resistance (it is more susceptible to swaying in the wind) and low load-bearing capacity. Summary of the Invention
[0003] The present invention aims to provide a bridge pylon construction method that is convenient to construct and has good load-bearing and wind resistance, thus solving the problem that existing pylons have low wind resistance and low load capacity.
[0004] To achieve the above objectives, the present invention employs the following technology: a bridge pylon construction method, wherein the pylon includes a pylon foundation, a pylon beam built on the pylon foundation, and a pylon body connected to the pylon beam. The pylon body includes two pylon columns distributed along the transverse direction of the bridge. Each pylon column is fixed to one end of a plurality of anchor cables. The ends of the anchor cables connected to the pylon columns are distributed along the extension direction of the pylon columns. The lower sections of the anchor cables are fixed to the bridge deck. The lower ends of the anchor cables are distributed along the longitudinal direction of the bridge. The characteristic feature is that the portions of the two pylon columns located above the pylon beam face the centerline of the bridge. The structure is a tilted, curved structure with the upper ends of two tower beams cast together. The orthographic projection of the two towers along the longitudinal direction of the bridge lies on an ellipse, while the orthographic projection of the tower column along the transverse direction is a straight structure extending vertically. The tower column is divided into an upper section, a middle section, and a lower section, with anchor cables only connected to the middle section. The specific construction process is as follows: A) Constructing the tower foundation; B) Constructing the tower beams; C) Constructing the lower and middle sections of the tower column sequentially using prefabricated molds that can move along the extension direction of the tower column; D) Constructing the upper section of the tower column using on-site erected molds. This design ensures good load-bearing capacity of the tower at the construction site.
[0005] Preferably, the tower column has a hollow structure, and the internal space of the tower column forms a pedestrian passage. A maintenance ladder extending along the extension direction of the tower column is installed within the pedestrian passage. This increases the cross-sectional area of the tower column, improving stability while preventing excessive weight. The maintenance ladder facilitates maintenance of the cable tower, and its access from inside the tower column ensures safety.
[0006] Preferably, the lower section and middle section of the tower column are each cast with several rows of internally threaded pipes distributed along the extension direction of the tower body on two side walls distributed in the transverse direction. The precast mold includes two mold groups distributed in the transverse direction. Each mold group includes an inner mold, a mounting frame, a mold frame that is vertically connected to the mounting frame via a lifting mechanism, and an outer mold connected to the mold frame. The mounting frame is provided with a row of lower screw holes and a row of middle screw holes distributed in the longitudinal direction. The middle section of the middle frame is provided with a lower working platform, a vertical slide bar, and a support groove located outside the vertical slide bar. The mold frame includes a mold support platform and an upper working platform connected to the mold support platform via a support frame. The lower side of the mold support platform... The mold support platform has a row of screw holes arranged longitudinally. A vertical sliding sleeve fitted onto the vertical sliding rod and a limiting vertical rod passing through the support groove are fixed to the bottom of the mold support platform. The outer mold is connected to the mold support platform via a mold adjustment frame. Step C's specific process is as follows: C1 First, the tower column is poured to a height suitable for installing the mold assembly. C2 Then, the mold assembly is used for pouring. The specific process of C2 is as follows: C21, the telescopic mechanism of one mold assembly is retracted; C22, the mold frame is fixed to the poured part of the tower column by connecting the upper fixing bolt through the upper screw hole to the internal threaded pipe, and then connected to the internal threaded pipe by connecting the middle fixing bolt through the middle screw hole and the lower fixing bolt through the lower screw hole. C23. Connect the mounting bracket to the internal threaded pipe and fix it to the cast section of the tower column. Adjust the movable bracket to the position of the outer mold to meet the requirements, and fix the inner mold so that a cavity is formed between the inner and outer molds; C24. Pour concrete into the cavity and let it solidify to form half of a tower column section; C25. Remove the upper fixing bolt, and use the lifting mechanism to lift the mold frame to the position of the outer mold adjacent to the cast tower column section to be poured. Connect the upper fixing bolt through the upper bolt hole to the internal threaded pipe to fix the mold frame to the cast section of the tower column. Remove the lower fixing bolt and the upper fixing bolt; C26. The lifting mechanism retracts and resets to lift the mounting bracket, and connect it to the internal threaded pipe through the middle fixing bolt through the middle screw hole. The mounting bracket is fixed to the cast section of the tower column by connecting the internally threaded pipe and the lower fixing bolt through the lower screw hole. The movable bracket is adjusted to the required position on the outer mold, and the inner mold is fixed to form a cavity between the inner and outer molds. Following methods C21 to C23, the other half of one section of the tower column is cast using another mold set, thus completing one section of the tower column. Following method C23, the other half of the tower column is cast using one mold set. Following methods C24 and C25, the other mold set is moved, and following method C23, the other half of the tower column is cast using another mold set, thus completing the other section of the tower column. This process is repeated to cast the lower section and the middle section of the tower column. This method facilitates the installation and movement of the molds.
[0007] Preferably, the mold assembly further includes a reinforcing rod whose upper end is connected to the mold support platform, and whose lower end is detachably connected to the vertical slide rod. When the lifting mechanism extends, the reinforcing rod disengages from the vertical slide rod; when the lifting mechanism retracts, the reinforcing rod is connected to the vertical slide rod. This provides good structural strength.
[0008] Preferably, the mold adjustment frame includes a movable platform mounted on a mold support platform, a mold support frame hinged to the movable platform via a first hinge shaft extending longitudinally from the lower end, and a telescopic rod hinged to the upper end of the mold support frame via a second hinge shaft. The outer mold is connected to the side of the mold support frame away from the telescopic rod. The lower section of the telescopic rod is hinged to the movable platform via a third hinge shaft. The outer mold, mold support platform, and telescopic rod are distributed along the transverse direction. Different molds are required for different sections of the hinged column to adapt to changes in the column's curvature. During use, the movable platform is moved to adjust the lower end of the outer mold to the required position, and then the length of the telescopic rod is changed to adjust the upper end of the outer mold to the required position. Once the upper and lower ends of the outer mold are in the required positions, the overall position is correct. This makes mold adjustment convenient.
[0009] Preferably, the mobile platform is equipped with wheels, and a rack extending along the transverse direction is provided on the lower surface of the mobile platform. A drive gear meshes with the rack, and the drive gear is connected to a drive motor fixed on the mold support platform. This reduces the effort required to move the mobile platform.
[0010] Preferably, the two tower columns are connected together by a plurality of rigid connecting rods distributed along the vertical direction. The rigid connecting rods include an upper rigid connecting rod, a middle rigid connecting rod, and a lower rigid connecting rod. The upper rigid connecting rod connects to the upper section and the middle section of the tower column, the middle rigid connecting rod connects to the middle part of the middle section of the tower column, and the lower rigid connecting rod connects to the middle section and the lower section of the tower column. This improves the resistance to the closure of the two tower columns.
[0011] Preferably, the rigid connecting rod is a hollow structure, with tensioned steel cables threaded inside. The two ends of each cable are connected to the two tower columns. When the two tower columns separate, the steel cables provide resistance. Tensile and compressive resistance are achieved through different components, resulting in good performance. This configuration is compact.
[0012] Preferably, the system also includes a tethering rope with one end fixed to the tower support, and the other end of the tethering rope passing through the interiors of the two tower columns and then fixed to the tower support. The tethering rope is under tension, and the steel cable is fixed to the tethering rope and thus to the tower column. When the steel cable is pulled, it drives the tethering rope to compress the tower column as a whole, resulting in good tensile strength and avoiding the problem of detachment at the connection point that is easily caused by the steel cable being directly fixed to the tower column.
[0013] Preferably, the end faces of the tower column at both ends along the longitudinal direction of the bridge include an outer inclined surface and an inner inclined surface distributed along the transverse direction of the bridge. One side of the outer inclined surface is connected to the outer surface of the tower column, and the other side is connected to one side of the inner inclined surface. The other side of the inner inclined surface is connected to the inner surface of the tower column. A flange extending along the extension direction of the tower column is formed between the inner and outer inclined surfaces. This enhances the wind resistance of the tower body.
[0014] Preferably, the anchor cables on both sides of the tower are connected one-to-one. The connection force between the anchor cables and the tower only needs to balance the difference in force on both sides. This force is usually small, thus allowing the anchor cables to be connected to the tower more easily and reliably.
[0015] Preferably, the aligned anchor cables on both sides of the tower are integrally formed. The connection between the anchor cables is reliable.
[0016] Beneficial effects: Good wind resistance and good load capacity for the same cross-sectional area. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the longitudinal bridge view during the construction of this invention. Only one mold group located on the inner side is shown on one tower column. Figure 2 This is a schematic diagram of the present invention when viewed along the transverse direction of the bridge; Figure 3 for Figure 1 A magnified view of a portion of point A; Figure 4 for Figure 1 A magnified view of a portion of point B; Figure 5 for Figure 4 A partial schematic diagram at point C; Figure 6 This is a schematic diagram of the cross-section of the tower column.
[0018] In the diagram: 1. Tower foundation; 2. Tower beam; 3. Tower body; 4. Tower column; 5. Anchor cable; 6. Upper section of tower column; 7. Middle section of tower column; 8. Lower section of tower column; 9. Internal space of tower column; 10. Upper rigid connecting rod; 11. Middle rigid connecting rod; 12. Lower rigid connecting rod; 13. Steel cable; 14. Tie rope; 15. Outer inclined surface; 16. Inner inclined surface; 17. Outer surface of tower column; 18. Inner surface of tower column; 19. Flange; 20. Internally threaded pipe; 21. Mold assembly; 22. Mounting frame; 23. Lifting mechanism; 24. Mold frame. 25. Outer mold, 26. Lower working platform, 27. Vertical slide bar, 28. Support slide groove, 29. Mold support platform, 30. Support frame, 31. Upper working platform, 32. Vertical slide sleeve, 33. Limiting vertical bar, 34. Upper fixing bolt, 35. Middle fixing bolt, 36. Lower fixing bolt, 37. Reinforcing rod, 38. Moving platform, 39. First hinge shaft, 40. Mold support frame, 41. Second hinge shaft, 42. Telescopic rod, 43. Third hinge shaft, 44. Walking wheel, 45. Rack, 46. Drive gear, 47. On-site mold assembly. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] See Figures 1 to 6A method for constructing a bridge pylon, comprising a pylon foundation 1, a pylon beam 2 built on the pylon foundation, and a pylon body 3 connected to the pylon beam. Each pylon body includes two columns 4 distributed transversely along the bridge, with one end of each column fixed to several anchor cables 5. The ends of the anchor cables connected to the columns extend along the column's direction, and the lower sections of the anchor cables are fixed to the bridge deck, with the lower ends of the anchor cables extending longitudinally along the bridge. The portions of the two columns above the pylon beam are curved structures inclined towards the bridge's centerline. The upper ends of the two pylon beams are cast together. The orthographic projections of the two pylon bodies along the longitudinal direction lie on an ellipse, while the orthographic projections of the columns along the transverse direction are straight structures extending vertically. Each column is divided into an upper section 6, a middle section 7, and a lower section 8, with anchor cables only connected to the middle section. The columns are hollow structures, with the internal space 9 forming a pedestrian walkway. Maintenance ladders extending along the column's direction are installed within the pedestrian walkway. Two tower columns are connected by a series of rigid connecting rods distributed vertically. These rigid connecting rods include an upper rigid connecting rod 10, a middle rigid connecting rod 11, and a lower rigid connecting rod 12. The upper rigid connecting rod connects to the upper and middle sections of the tower column, the middle rigid connecting rod connects to the middle part of the middle section, and the lower rigid connecting rod connects to the middle and lower sections of the tower column. The rigid connecting rods are hollow, and tensioned steel cables 13 are threaded through them. Both ends of the steel cables are connected to the two tower columns. A tethering rope 14, with one end fixed to the tower foundation, is also included. The other end of the tethering rope passes through the interior of the two tower columns and is then fixed to the tower foundation. The tethering rope is tensioned, and the steel cable is fixed to the tethering rope and thus to the tower column. The tower column has two end faces along the longitudinal direction of the bridge, each including an outer inclined surface 15 and an inner inclined surface 16 distributed along the transverse direction. One side of the outer inclined surface is connected to the outer surface 17 of the tower column, and the other side is connected to one side of the inner inclined surface. The other side of the inner inclined surface is connected to the inner surface 18 of the tower column. A flange 19 extending along the extension direction of the tower column is formed between the inner and outer inclined surfaces. The anchor cables on both sides of the tower column are connected together in a corresponding manner. Specifically, the aligned anchor cables on both sides of the tower column are integrally formed together.
[0021] The specific construction process is as follows: A. Constructing the tower foundation; B. Constructing the tower pier beam; C. Constructing the lower and middle sections of the tower column sequentially using precast molds that can move along the extension direction of the tower column; D. Constructing the upper section of the tower column using on-site erected molds. This ensures that the tower has good load-bearing capacity at the construction site.
[0022] On the two side walls of the lower section and middle section of the tower column, distributed along the transverse bridge direction, several rows of internally threaded pipes 20 are cast, distributed along the extension direction of the tower body. The precast mold includes two mold groups 21 distributed along the transverse bridge direction. The mold group includes an inner mold (installed inside the tower column), a mounting frame 22, a mold frame 24 that is vertically connected to the mounting frame via a lifting mechanism 23 (a hydraulic cylinder), and an outer mold 25 connected to the mold frame. The mounting frame has a row of lower screw holes and a row of middle screw holes distributed along the longitudinal bridge direction. The middle of the middle frame has a lower working platform 26, a vertical slide bar 27, and a support slide groove 28 located outside the vertical slide bar. The mold frame includes a mold support platform 29 and an upper working platform connected to the mold support platform via a support frame 30. Platform 31, the lower side of the mold support platform is provided with a row of upper screw holes distributed longitudinally. The bottom of the mold support platform is fixed with a vertical sliding sleeve 32 sleeved on the vertical sliding rod and a limiting vertical rod 33 passing through the support sliding groove. The outer mold is connected to the mold support platform through a mold adjustment frame. The specific process of step C is as follows: C1 first pour the tower column to the height that can install the mold assembly, C2 pour the mold assembly. The specific process of C2 is as follows: C21, make the telescopic mechanism of one mold assembly retracted; C22, fix the mold frame to the poured part of the tower column by passing the upper fixing bolt 34 through the upper screw hole and connecting it to the internal threaded pipe, and fix the mold frame to the cast part of the tower column by passing the middle fixing bolt 35 through the middle screw hole and connecting it to the internal threaded pipe and the lower fixing bolt. The fixing bolt 36 passes through the lower screw hole and connects to the internal threaded pipe to fix the mounting bracket to the cast-in-place section of the tower column. Adjust the movable bracket to the position of the outer mold to meet the requirements, and fix the inner mold to form a cavity between the inner and outer molds; C23, pour concrete into the cavity and let it solidify to form half of a tower column section; C24, remove the upper fixing bolt, and use the lifting mechanism to lift the mold frame to the position of the outer mold adjacent to the cast-in-place tower column section, and connect the upper fixing bolt through the upper bolt hole to the internal threaded pipe to fix the mold frame to the cast-in-place section of the tower column. Remove the lower fixing bolt and the upper fixing bolt; C25, the lifting mechanism retracts and resets to lift the mounting bracket, and the middle fixing bolt passes through the middle... The mounting bracket is fixed to the cast section of the tower column by connecting the screw hole inside the internal threaded pipe and by passing the lower fixing bolt through the screw hole inside the internal threaded pipe. The movable bracket is adjusted to the position of the outer mold to meet the requirements, and the inner mold is fixed so that a cavity is formed between the inner and outer molds. Following methods C21 to C23, the other half of a section of the tower column is cast using another mold set to enclose one section of the tower column. Following method C23, the other half of the tower column section is cast using one mold set. Following methods C24 and C25, the other mold set is moved, and following method C23, the other half of the tower column section is cast using another mold set to enclose the other section of the tower column. This process is repeated to cast the lower section and the middle section of the tower column. The mold set also includes a reinforcing rod 37 whose upper end is connected to the mold support platform, and the lower end of the reinforcing rod is detachably connected to the vertical sliding rod.When the lifting mechanism extends, the reinforcing rod disengages from the vertical sliding rod; when the lifting mechanism retracts, the reinforcing rod connects to the vertical sliding rod. The mold adjustment frame includes a movable platform 38 mounted on the mold support platform, a mold support frame 40 hinged to the movable platform via a first hinge shaft 39 extending longitudinally, and a telescopic rod 42 hinged to the upper end of the mold support frame via a second hinge shaft 41. The outer mold is connected to the mold support frame on the side away from the telescopic rod. The lower section of the telescopic rod is hinged to the movable platform via a third hinge shaft 43. The outer mold, mold support platform, and telescopic rod are distributed along the transverse bridge direction. The movable platform is equipped with wheels 44, and a rack 45 extending transversely is provided on the lower surface of the movable platform. A drive gear 46 meshes with the rack, and the drive gear is connected to a drive motor fixed to the mold support platform.
[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A method for constructing a bridge pylon, the pylon comprising a pylon foundation, a pylon beam built on the pylon foundation, and a pylon body connected to the pylon beam, wherein the pylon body comprises two pylon columns distributed along the transverse direction of the bridge, each of the pylon columns being fixed to one end of a plurality of anchor cables on each side in the longitudinal direction of the bridge, the ends of the anchor cables connected to the pylon columns being distributed along the extension direction of the pylon columns, the lower sections of the anchor cables being fixed to the bridge deck, and the lower ends of the anchor cables being distributed along the longitudinal direction of the bridge, characterized in that... The portions of the two tower columns above the tower pier beams are curved structures inclined towards the centerline of the bridge. The upper ends of the two tower pier beams are cast together. The orthographic projections of the two tower bodies along the longitudinal direction of the bridge lie on an ellipse. The orthographic projections of the tower columns along the transverse direction of the bridge are straight structures extending vertically. The tower columns are divided into upper, middle, and lower sections. The anchor cables are only connected to the middle section of the tower columns. The specific construction process is as follows: A. Constructing the tower foundation; B. Constructing the tower pier beams; C. Constructing the lower and middle sections of the tower columns sequentially using prefabricated molds that can move along the extension direction of the tower columns. D. The upper section of the tower column is constructed using on-site molds.
2. The bridge pylon construction method according to claim 1, characterized in that, The tower column has a hollow structure, and its internal space forms a pedestrian walkway. An inspection ladder extending along the tower column's extension direction is installed within this walkway. This design increases the tower column's cross-sectional area, enhancing stability while preventing excessive weight.
3. The bridge pylon construction method according to claim 2, characterized in that, On the lower section and middle section of the tower column, several rows of internally threaded pipes distributed along the extension direction of the tower body are cast on two side walls distributed along the transverse bridge direction. The precast mold includes two mold groups distributed along the transverse bridge direction. The mold group includes an inner mold, a mounting frame, a mold frame that is vertically connected to the mounting frame via a lifting mechanism, and an outer mold connected to the mold frame. The mounting frame has a row of lower screw holes and a row of middle screw holes distributed along the longitudinal bridge direction. The middle of the middle frame has a lower working platform, a vertical slide rod, and a support slide groove located outside the vertical slide rod. The mold frame includes a mold support platform and an upper working platform connected to the mold support platform via a support frame. The lower side of the mold support platform has a longitudinal bridge. A row of screw holes are distributed on the bottom of the mold support platform. A vertical sliding sleeve fitted on the vertical sliding rod and a limiting vertical rod passing through the support groove are fixed to the bottom of the mold support platform. The outer mold is connected to the mold support platform through a mold adjustment frame. The specific process of step C is as follows: C1 First, the tower column is poured to a height that can accommodate the mold assembly. C2 The mold assembly is used for pouring. The specific process of C2 is as follows: C21, the telescopic mechanism of one mold assembly is in retraction; C22, the mold frame is fixed to the poured part of the tower column by connecting the upper fixing bolt through the upper screw hole to the internal threaded pipe, and the middle fixing bolt is connected to the internal threaded pipe through the middle screw hole and the lower fixing bolt is connected to the inner threaded pipe through the lower screw hole. C23. Fix the mounting bracket to the cast section of the tower column inside the internal threaded pipe. Adjust the movable bracket to the position of the outer mold to meet the requirements, and fix the inner mold to form a cavity between the inner and outer molds; C24. Pour concrete into the cavity and let it solidify to form half of a tower column section; C25. Remove the upper fixing bolt, and use the lifting mechanism to lift the mold frame to the position of the outer mold adjacent to the cast tower column section to be poured. Connect the upper fixing bolt through the upper bolt hole to the internal threaded pipe to fix the mold frame to the cast section of the tower column. Remove the lower fixing bolt and the upper fixing bolt; C26. Retract and reset the lifting mechanism to raise the mounting bracket, and connect it to the inner threaded pipe through the middle fixing bolt through the middle screw hole. The mounting bracket is fixed to the cast section of the tower column by connecting the threaded pipe and the lower fixing bolt through the lower screw hole. The movable bracket is adjusted to meet the requirements of the outer mold, and the inner mold is fixed so that a cavity is formed between the inner and outer molds. The other half of a section of the tower column is cast using another mold group according to methods C21 to C23, thus enclosing one section of the tower column. The other half of the tower column is cast using one mold group according to method C23. The other mold group is moved according to methods C24 and C25, and the other half of the tower column is cast using another mold group according to method C23, thus enclosing the other section of the tower column. This process is repeated to cast the lower section and the middle section of the tower column.
4. The bridge pylon construction method according to claim 3, characterized in that, The mold assembly also includes a reinforcing rod whose upper end is connected to the mold support platform, and the lower end of the reinforcing rod is detachably connected to the vertical sliding rod.
5. A bridge pylon construction method according to claim 3 or 4, characterized in that, The mold adjustment frame includes a movable platform mounted on a mold support platform, a mold support frame hinged to the movable platform via a first hinge shaft extending longitudinally from the lower end, and a telescopic rod hinged to the upper end of the mold support frame via a second hinge shaft. The outer mold is connected to the side of the mold support frame away from the telescopic rod. The lower section of the telescopic rod is hinged to the movable platform via a third hinge shaft. The outer mold, the mold support platform, and the telescopic rod are distributed along the transverse direction of the bridge.
6. A bridge pylon construction method according to claim 5, characterized in that, The mobile platform is equipped with wheels, and a rack extending in the transverse direction is provided on the lower surface of the mobile platform. A drive gear meshes on the rack, and the drive gear is connected to a drive motor fixed on the mold support platform.
7. A bridge pylon construction method according to claim 1 or 2, characterized in that, The two tower columns are connected together by a number of rigid connecting rods distributed in the vertical direction. The rigid connecting rods include an upper rigid connecting rod, a middle rigid connecting rod, and a lower rigid connecting rod. The upper rigid connecting rod is connected at the connection between the upper section and the middle section of the tower column, the middle rigid connecting rod is connected at the middle part of the middle section of the tower column, and the lower rigid connecting rod is connected at the connection between the middle section and the lower section of the tower column.
8. A bridge pylon construction method according to claim 7, characterized in that, The rigid connecting rod is a hollow structure, and a tensioned steel cable runs through it. The two ends of the steel cable are connected to the two tower columns in a one-to-one correspondence. When the two tower columns separate, the steel cable provides resistance.
9. A bridge pylon construction method according to claim 8, characterized in that, It also includes a tethering rope with one end fixed to the tower support, and the other end of the tethering rope passes through the inside of the two tower columns in sequence and is fixed to the tower support. The tethering rope is in a taut state, and the steel cable is fixed to the tethering rope and fixed to the tower column.
10. A bridge pylon construction method according to claim 1 or 2, characterized in that, The end faces of the tower column at both ends along the longitudinal direction of the bridge include an outer inclined surface and an inner inclined surface distributed along the transverse direction of the bridge. One side of the outer inclined surface is connected to the outer surface of the tower column, and the other side is connected to one side of the inner inclined surface. The other side of the inner inclined surface is connected to the inner surface of the tower column. A flange extending along the extension direction of the tower column is formed between the inner and outer inclined surfaces.