Novel high-speed railway bridge ballastless track base plate construction template and supporting tool

Abstract

The application discloses a novel high-speed railway bridge ballastless track base plate construction formwork and supporting tool, the formwork supporting tool comprises a protective wall fixing part on a protective wall and a formwork fixing assembly, a locking supporting assembly for supporting the formwork fixing assembly is arranged between the protective wall fixing part and the formwork fixing assembly, and the formwork fixing assembly comprises: a horizontal rod arranged on one side of the protective wall; two formwork fixing profile steels vertically arranged on two sides of the bottom of the horizontal rod; and a pressing part arranged on the two formwork fixing profile steels, the pressing part supports the outer sides of the longitudinal formworks by rotating the formwork fixing bolt to drive the round shore to bear against the square steels, the two locking rods between the protective wall fixing part and one longitudinal formwork support the formwork fixing profile steels and the longitudinal formwork, the already constructed protective wall is used as the support, the two longitudinal formworks are reinforced without needing to punch holes, and the longitudinal formwork is prevented from appearing the formwork rising phenomenon in the concrete pouring process.

Description

Technical Field

[0001] This application relates to the field of railway bridge construction, and in particular to the construction template and support tooling for the ballastless track base plate of a new type of high-speed railway bridge. Background Technology

[0002] Ballastless track refers to a track structure that uses an integral foundation such as concrete or asphalt mixture to replace the loose crushed stone track bed. In the construction process of ballastless track, the construction of the base plate is one of the most critical steps. As the foundation of the track, the flatness and stability of the base plate directly affect the overall performance and safety of the track.

[0003] However, during the implementation of the relevant technical solutions, at least the following technical problems were found: Traditional base plate formwork reinforcement methods mostly use supports and tie rods to prevent the formwork from bulging during concrete pouring. When using tie rods, holes need to be drilled on the bridge beam surface. After drilling, the holes need to be sealed, and regular inspection and maintenance are required, which increases the maintenance cost of the bridge. Summary of the Invention

[0004] This application provides a new type of construction template and supporting fixture for the ballastless track base plate of high-speed railway bridges, which solves the problem of subsequent inspection and maintenance required after drilling holes in the bridge beam surface in the prior art, and achieves the effect of processing the bridge beam surface template without drilling.

[0005] This application provides a novel formwork support fixture for the construction of ballastless track base slabs for high-speed railway bridges, including a protective wall fixing component and a formwork fixing assembly on a protective wall. A locking support assembly for supporting the formwork fixing assembly is provided between the protective wall fixing component and the formwork fixing assembly. The formwork fixing assembly includes: a crossbar, disposed on one side of the protective wall; two formwork fixing steel sections, vertically disposed on both sides of the bottom of the crossbar; and a clamping component disposed on the two formwork fixing steel sections.

[0006] Furthermore, the clamping component includes: two template fixing bolts threadedly connected to the top and bottom of the template fixing steel; a circular foot support located at one end of the template fixing bolt near the middle of the crossbar; and a knob located at the other end of the template fixing bolt.

[0007] Furthermore, a square steel bar is provided on one side of the circular foot support near the middle of the crossbar, and the square steel bar is in contact with and connected to the circular foot support.

[0008] Furthermore, the protective wall fixing component has two fastening bolts threadedly connected on the side away from the crossbar, and one end of the two fastening bolts is in contact with the protective wall fixing component.

[0009] Furthermore, the locking support assembly includes: two locking rods, respectively disposed between the crossbar and the template fixing steel and the protective wall fixing component; two threaded posts, threadedly connected to both ends of the locking rods, with through grooves provided on the threaded posts; and a connecting component disposed on the crossbar, the template fixing steel and the protective wall fixing component, wherein the connecting component is used to fix the threaded posts on the two locking rods.

[0010] Furthermore, the connecting component includes: two first fixing seats, respectively disposed at the end of the crossbar and on the outer side of one of the template fixing steel near the protective wall fixing member, each of the two first fixing seats having a locking hole in the middle; a second fixing seat, disposed on the side of the protective wall fixing member near the protective wall, the second fixing seat having multiple locking holes in the middle; two threaded posts at both ends of the locking rod being disposed inside the first fixing seat and the second fixing seat respectively, and the through groove being aligned with the locking hole; a pin, disposed between the through groove and the locking hole; and a pin inserted into the pin.

[0011] This application provides a novel construction template for the ballastless track base plate of a high-speed railway bridge. The construction template includes two longitudinal templates. In the template support fixture, two template fixing steel sections are respectively set on the outer side of the two longitudinal templates, and the square steel on the template fixing steel section abuts against the outer side wall of the longitudinal template.

[0012] The technical solution provided in this application has at least the following technical effects or advantages:

[0013] The rotation of the template fixing bolts drives the circular foot brace to abut against the square steel to support the outer side of the longitudinal template. In conjunction with the protective wall fixing parts and the two locking rods between the longitudinal template and the template fixing steel, the longitudinal template is supported. Using the completed protective wall as support, the two longitudinal templates are reinforced without drilling, preventing the longitudinal template from bulging during the concrete pouring process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the planar structure of the construction template in the embodiments of this application;

[0015] Figure 2 This is a schematic diagram of the overall structure of the template support tooling in the embodiments of this application;

[0016] Figure 3 This is a schematic diagram of the planar structure of the template fixing component in the embodiments of this application;

[0017] Figure 4This is a schematic diagram of the locking support assembly in an embodiment of this application;

[0018] Figure 5 This is a schematic diagram of the locking rod in an embodiment of this application;

[0019] In the diagram: 10. Longitudinal template; 20. Protective wall; 30. Protective wall fastener; 40. Fastening bolt; 50. Template fixing assembly; 60. Locking support assembly; 51. Horizontal bar; 52. Template fixing steel; 53. Template fixing bolt; 54. Circular foot support; 55. Knob; 56. Square steel; 61. Locking rod; 62. Threaded post; 621. Through groove; 63. Connecting component; 631. First fixing seat; 632. Second fixing seat; 633. Locking hole; 634. Pin; 635. Dowel pin. Detailed Implementation

[0020] This application discloses a novel construction template and supporting fixture for the base plate of ballastless track for high-speed railway bridges. The rotation of the template fixing bolts 53 on the outer template fixing steel 52 of the two longitudinal templates 10 drives the circular foot brace 54 and square steel 56 to support the outer side of the longitudinal templates 10. In conjunction with the protective wall fixing component 30 and the two locking rods 61 at different angles between the longitudinal templates 10, the template fixing steel 52 and the longitudinal templates 10 are supported. The two longitudinal templates 10 are reinforced without the need for drilling, preventing the longitudinal templates 10 from bulging during concrete pouring.

[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0022] Example 1

[0023] Please refer to Figure 1 This embodiment provides a novel construction template for the base slab of ballastless track for high-speed railway bridges, including two longitudinal templates 10 on the top of the bridge. The two longitudinal templates 10 are set on both sides of the base slab after the reinforcement is tied, and placed on the template lines marked in advance. Protective walls 20 are set at the positions of the two longitudinal templates 10 near the sides of the bridge. The installation positions of the two longitudinal templates 10 are determined by the base slab after the reinforcement is tied and the template lines. After confirming the positions of the longitudinal templates 10 and checking that their geometric dimensions and elevations meet the design requirements, concrete is poured into the two longitudinal templates 10 to complete the construction of the double-block ballastless track base slab of the high-speed railway bridge.

[0024] Example 2

[0025] Please refer to Figure 2 and Figure 3This embodiment provides a novel formwork support fixture for the construction of ballastless track base plates for high-speed railway bridges. It includes a protective wall fixing component 30 at the top of a protective wall 20 and formwork fixing components 50 at the top of two longitudinal formworks 10. A locking support component 60 for supporting the formwork fixing components 50 is provided between the protective wall fixing component 30 and the formwork fixing components 50. The formwork fixing components 50 include a horizontal bar 51, formwork fixing steel sections 52, and clamping components. The horizontal bar 51 is located at the top of the two longitudinal formworks 10, and the horizontal bar 51 and the protective wall fixing component 30 are in the same plane. The two formwork fixing steel sections 52 are vertically arranged on both sides of the bottom of the horizontal bar 51, and are respectively located on the outer sides of the two longitudinal formworks 10. The clamping components are located on the two formwork fixing steel sections 52 and include formwork fixing bolts 53, circular foot supports 54, knobs 55, and square steel sections 56. The two formwork fixing bolts 53 are threadedly connected to the top and bottom of the formwork fixing steel sections 52. A circular foot brace 54 is located at one end of the template fixing bolt 53 near the two longitudinal templates 10. A knob 55 is located at the other end of the template fixing bolt 53. Two square steel bars 56 are located on the outside of the longitudinal templates 10. The two sides of the square steel bars 56 are respectively in contact with the longitudinal templates 10 and the circular foot brace 54. The crossbar 51 can be tilted to accommodate the two longitudinal templates 10 with different height differences. The square steel bars 56 can increase the contact range with the longitudinal templates 10, so that the tilted circular foot brace 54 can also provide good support for the longitudinal templates 10, thereby improving the support effect of the longitudinal templates 10 and effectively preventing damage to the longitudinal templates 10. The crossbar 51 and the two template fixing steel bars 52 can wrap around the two longitudinal templates 10. With the rotation of the template fixing bolt 53, the circular foot brace 54 pushes against the square steel bars 56, thereby limiting the longitudinal templates 10 on the outside and preventing the longitudinal templates 10 from bulging during concrete pouring.

[0026] Please refer to Figures 1-5The protective wall fixing component 30 has two fastening bolts 40 threadedly connected to the side away from the two longitudinal templates 10. One end of the two fastening bolts 40 contacts the protective wall fixing component 30. The protective wall 20 is covered with geotextile to protect it from damage caused by the fastening bolts 40. The locking support assembly 60 includes locking rods 61, threaded posts 62, and connecting parts 63. The two locking rods 61 are respectively located between the crossbar 51 and the template fixing steel 52 and the protective wall fixing component 30. The two threaded posts 62 are threadedly connected to the two ends of the locking rods 61. The threaded posts 62 have through grooves 621. The connecting parts 63 are located between the crossbar 51 and the template fixing steel 52. The connecting component 63 is used to fix the threaded post 62 on the two locking rods 61 on the protective wall fixing component 30. The protective wall fixing component 30 is fixedly installed on the protective wall 20 by rotating the fastening bolt 40 on the protective wall fixing component 30. The threaded connection of the two threaded posts 62 on the locking rod 61 can change the overall length of the locking rod 61 and the two threaded posts 62, improve the applicability of the locking support component 60, and also make both locking rods 61 tilted. The two locking rods 61 are tilted at different angles, so that the two locking rods 61 can support the crossbar 51 and the template fixing steel 52 in different positions, thereby improving the reinforcement effect of the longitudinal template 10.

[0027] Please refer to Figures 1-5 The connecting component 63 includes a first fixing seat 631, a second fixing seat 632, a pin 634, and a pin 635. The two first fixing seats 631 are respectively located at the ends of the crossbar 51 and on the outer side of a template fixing steel 52 near the protective wall fixing component 30. Each of the two first fixing seats 631 has a locking hole 633 in its center. The second fixing seat 632 is located on the side of the protective wall fixing component 30 near the protective wall 20. The second fixing seat 632 has multiple locking holes 633 in its center. Two threaded posts 62 at both ends of the locking rod 61 are respectively located inside the first fixing seat 631 and the second fixing seat 632, with the through groove 621 aligned with the locking hole 633. The pin 634 is located between the through groove 621 and the locking hole 633. 635 is inserted into the pin 634. By extending two threaded posts 62 near the longitudinal template 10 into the first fixing seat 631 on one side of the crossbar 51 and the side of the template fixing steel 52, and extending the other two threaded posts 62 into different locking holes 633 on the second fixing seat 632, the two locking rods 61 are set at an angle and in different directions. The pin 634 is inserted into the locking hole 633 and the through groove 621 on the threaded post 62 to fix the two locking rods 61. The two locking rods 61 can support the longitudinal template 10 in two different directions. Together with the circular foot brace 54, they hold the longitudinal template 10 against it, improving the reinforcement effect of the longitudinal template 10 and preventing the longitudinal template 10 from bulging during concrete pouring.

[0028] The functional principle of this application can be explained through the following methods:

[0029] In use, longitudinal templates 10 are installed on both sides of the plate after the base plate reinforcement is tied. The longitudinal templates 10 are placed on the template lines marked in advance and are perpendicular to the beam surface. The horizontal bar 51 is placed on the two longitudinal templates 10, and the horizontal bar 51 and the protective wall fixing component 30 are in the same plane. The square steel 56 is placed between the circular foot support 54 and the longitudinal template 10. The knob 55 is rotated so that the knob 55 drives the template fixing bolt 53 and the circular foot support 54 to rotate. The template fixing bolt 53, which is threaded to the template fixing steel 52, drives the circular foot support 54 to abut against the square steel 56, so that the square steel 56 is in close contact with the longitudinal template 10, limiting the outer side of the longitudinal template 10, and completing the installation of the template fixing component 50.

[0030] Cover the completed protective wall 20 with geotextile, place the protective wall fastener 30 on top of the geotextile on the protective wall 20, rotate the two fastening bolts 40 on the protective wall fastener 30 so that one end of the fastening bolt 40 abuts against the geotextile of the protective wall fastener 30, and fix the protective wall fastener 30 on the protective wall 20 to complete the installation of the protective wall fastener 30.

[0031] Place the threaded posts 62 on the two locking rods 61 into the two first fixing seats 631 at the end of the crossbar 51 and on the template fixing steel 52, respectively. Align the through groove 621 with the locking hole 633, insert the pin 634 into the locking hole 633 and the through groove 621, and then insert the pin 635 into the pin 634, thereby fixing one threaded post 62 inside the first fixing seat 631. Rotate the locking rod 61 and the other threaded post 62 to change the distance between the two threaded posts 62, so that the through groove 621 on the other end of the threaded post 62 aligns with the locking hole 633 and the locking hole 633. Align the locking holes 633 on the second fixing seat 632 and make the angles of the two locking rods 61 different. Then, insert the pin 634 into the through groove 621 to fix the threaded post 62. Insert the pin 635 into the pin 634 to fix the pin 634. This fixes the two locking rods 61 between the protective wall fixing member 30, the crossbar 51 and the template fixing steel 52, and supports the longitudinal template 10 in two different directions, thereby improving the reinforcement effect of the longitudinal template 10 and preventing the longitudinal template 10 from bulging during concrete pouring.

[0032] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0033] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A new type of formwork support tooling for the construction of ballastless track base slabs for high-speed railway bridges, characterized in that, The system includes a protective wall fastener (30) and a template fixing assembly (50) on the protective wall (20). A locking support assembly (60) for supporting the template fixing assembly (50) is provided between the protective wall fastener (30) and the template fixing assembly (50). The template fixing assembly (50) includes: A crossbar (51) is provided on one side of the protective wall (20); Two template fixing steel sections (52) are vertically set on both sides of the bottom of the crossbar (51); The clamping components are mounted on the two template fixing steel sections (52).

2. The novel high-speed railway bridge ballastless track base plate construction template support tooling as described in claim 1, characterized in that, The clamping component includes: Two template fixing bolts (53) are threadedly connected to the top and bottom of the template fixing steel (52); A circular foot support (54) is provided at one end of the template fixing bolt (53) near the middle of the crossbar (51); A knob (55) is located at the other end of the template fixing bolt (53).

3. The novel high-speed railway bridge ballastless track base plate construction template support tooling as described in claim 2, characterized in that, A square steel (56) is provided on one side of the circular foot support (54) near the middle of the crossbar (51), and the square steel (56) is in contact with the circular foot support (54).

4. The novel high-speed railway bridge ballastless track base plate construction formwork support tooling as described in claim 1, characterized in that, The protective wall fastener (30) has two fastening bolts (40) threadedly connected on the side away from the crossbar (51), and one end of the two fastening bolts (40) is in contact with the protective wall (20).

5. The novel high-speed railway bridge ballastless track base plate construction template support tooling as described in claim 1, characterized in that, The locking support assembly (60) includes: Two locking rods (61) are respectively installed between the crossbar (51) and the template fixing steel (52) and the protective wall fixing component (30); Two threaded posts (62) are threaded to both ends of the locking rod (61), and the threaded posts (62) are provided with through slots (621); A connecting component (63) is provided on the crossbar (51), the template fixing steel (52) and the protective wall fixing component (30), and the connecting component (63) is used to fix the threaded post (62) on the two locking rods (61).

6. The novel high-speed railway bridge ballastless track base plate construction template support tooling as described in claim 5, characterized in that, The connecting component (63) includes: Two first fixing seats (631) are respectively set at the end of the crossbar (51) and on the outside of a template fixing steel (52) near the protective wall fixing member (30). A locking hole (633) is provided in the middle of each of the two first fixing seats (631). The second fixing seat (632) is disposed on the side of the protective wall fixing member (30) near the protective wall (20). The second fixing seat (632) has a plurality of locking holes (633) in the middle. The two threaded posts (62) at both ends of the locking rod (61) are respectively disposed inside the first fixing seat (631) and the second fixing seat (632), and the through groove (621) is aligned with the locking holes (633). A pin (634) is disposed between the through groove (621) and the locking hole (633); A pin (635) is inserted into the pin (634).

7. A new type of construction formwork for the base plate of ballastless track for high-speed railway bridges, characterized in that, The construction template support fixture for the ballastless track base plate of the new high-speed railway bridge as described in any one of claims 1-6 is adopted. The construction template includes two longitudinal templates (10). Two template fixing steels (52) in the template support fixture are respectively set on the outside of the two longitudinal templates (10). The square steel (56) on the template fixing steel (52) abuts against the outer wall of the longitudinal template (10).

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