Method and device for installing and reinforcing inner formwork of large-inclination high tower

Abstract

The application discloses a large-inclination high-tower inner mold installation and reinforcement method and device, and the method comprises the following steps: pre-burying a climbing cone and constructing a first tower column; installing a counter-pulling base, a counter-supporting base and a construction platform on the first tower column through the climbing cone; installing a longitudinal upward mold plate and positioning and reinforcing the mold plate through a counter-supporting rod and a counter-pulling screw rod; installing a longitudinal downward mold plate and positioning and reinforcing the mold plate through a counter-pulling rod and a counter-pulling screw rod; installing a horizontal mold plate, positioning and reinforcing the mold plate through a longitudinal counter-supporting rod and a counter-pulling screw rod, inserting a chamfer mold plate, and completing the installation and reinforcement of the whole inner mold system; and pouring tower body concrete; after the reinforcement installation is completed, the mold plate is connected with a last poured tower body through a counter-pulling structure and a counter-supporting structure, an adjustable bottom support and a fastener are adjusted, the position of the bridge tower inner mold is fixed, the mold plate is directly stressed on the solid concrete, the fixing position effect is good, and the safety and quality of the bridge tower construction are improved.

Description

Technical Field

[0001] This invention relates to the field of building internal formwork construction technology, and in particular to a method and device for installing and reinforcing the internal formwork of a high tower with a large inclination angle. Background Technology

[0002] In recent years, my country's bridge construction has developed rapidly, with a large number of bridges featuring novel structures, advanced technology, and challenging design and construction techniques being completed. China's bridge construction level has reached the international advanced level, and is developing towards large spans, new types, lightweight, and aesthetically pleasing designs.

[0003] As the main load-bearing structure of long-span bridges, bridge towers present significant challenges in construction, particularly in controlling the dimensions and planar position of the formwork. These challenges include the ease of misalignment, difficulty in reinforcement, and the common problems of formwork deformation and deflection. While mature hydraulic climbing formwork technology is used for external formwork construction, specific measures are lacking for internal formwork construction. Relying on conventional bracing methods for external formwork reinforcement yields poor results, impacting the safety and quality of the bridge tower. Summary of the Invention

[0004] The main objective of this invention is to provide a method and apparatus for installing and reinforcing the inner formwork of a high tower with a large tilt angle, in order to solve existing technical problems.

[0005] To achieve the above objectives, the present invention provides a method for reinforcing the inner formwork of a high-inclination tower, comprising:

[0006] Pre-embed climbing cones and construct the first section of the tower column;

[0007] The tie rod base, brace base and construction platform are installed on the first tower section using climbing cones;

[0008] Install the longitudinal overhead formwork and reinforce it by positioning and fixing it with struts and tie rods;

[0009] Install the longitudinal planar template and reinforce it by positioning with tie rods and tie bolts;

[0010] Install the horizontal template, reinforce the template by positioning it with longitudinal bracing and tie rods, insert the chamfered template, and complete the installation and reinforcement of the entire internal formwork system;

[0011] Pour concrete for the tower body;

[0012] After the tower concrete has hardened, the inner formwork system is removed, and the next tower segment is constructed in a cycle.

[0013] Furthermore, the specific steps for installing the longitudinal overhead template are as follows:

[0014] Install the longitudinal upright template and install the bracing rods between the bracing base and the top pad;

[0015] The tie rods pass through the tie rod holes on the longitudinal overhead template to connect and fix the inner and outer templates;

[0016] Adjust the adjustable base of the support rod to position the longitudinal upright template.

[0017] Furthermore, a top pad is provided on the longitudinal upright template steel back rib, which is at a 90-degree angle to the direction of the support, and the support rod is provided with an adjustable bottom support to adjust the support length of the support structure.

[0018] Furthermore, the specific steps for installing the longitudinal planar template are as follows:

[0019] Install the longitudinal top-side template, pass the tie rod through the tie rod hole on the longitudinal top-side template to connect and fix the inner and outer templates, install the tie rod and fastener, align the end ring of the tie rod with the hole of the top connecting block, insert the pin to connect, hang the fastener on the fixing pin of the tie rod base, adjust the fastener, and position the longitudinal top-side template.

[0020] The top connecting block is fixed to the longitudinal downward template steel back rib, and the tie rod connects the top connecting block and the fastener.

[0021] Furthermore, the specific steps for installing the horizontal template are as follows:

[0022] Install the horizontal template, and use tie rods to connect and fix the inner and outer templates by passing the tie rod holes on the horizontal template. The two ends of the longitudinal support rods are pressed against the back ribs of the horizontal template. The two horizontal templates are reinforced by adjusting the adjustable bottom supports at both ends. Finally, the chamfered template is inserted into the chamfered position and reinforced with tie rods.

[0023] Furthermore, the pull base is provided with a fixed pin, and the force-bearing surface of the support base is perpendicular to the support direction.

[0024] Furthermore, the steps prior to pouring the tower body concrete also include,

[0025] Install climbing cones on the longitudinal overhead template and the longitudinal downward template, and fix the climbing cones with screws through the climbing cone holes on the longitudinal overhead template and the longitudinal downward template.

[0026] Furthermore, the specific steps for installing the tie rod base, brace base, and construction platform on the first tower section are as follows:

[0027] First, install the construction platform;

[0028] On the construction platform, screws are used to connect the tie base and the support base to the climbing cone in the cast tower body, and the tie base and the support base are installed tightly against the inner wall of the tower body.

[0029] Furthermore, the longitudinal overhead template, longitudinal downward template, and transverse template are made of wood, while the chamfered template is made of steel.

[0030] A reinforcement device for the inner formwork of a high-inclination tower includes longitudinal upward formwork, longitudinal downward formwork, and transverse formwork arranged around the tower body. The inner and outer longitudinal upward formwork, longitudinal downward formwork, and transverse formwork are all connected by tie rods. The longitudinal downward formwork between adjacent first tower sections is positioned by tie rods, the longitudinal upward formwork between adjacent first tower sections is positioned by struts, and the transverse formwork between adjacent first tower sections is positioned by longitudinal bracing.

[0031] The beneficial effects of this invention are reflected in:

[0032] In this invention, after the steel reinforcement is installed, the template is connected to the previous section of the cast tower body through the tie structure and the bracing structure. The adjustable base and fastener are adjusted to fix the inner formwork of the bridge tower. The template is directly subjected to the solid concrete, and the fixing effect is better, which improves the safety and quality of bridge tower construction. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the installation and reinforcement method of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the present invention;

[0035] Figure 3 This is a top view of the structure of the present invention;

[0036] Figure 4 This is a top view schematic diagram of the structure of the present invention from another perspective;

[0037] Figure 5 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0038] Figure 6 For the present invention Figure 2 Enlarged structural diagram of section B in the middle;

[0039] Figure 7 For the present invention Figure 2 Enlarged structural diagram of the structure at point C;

[0040] Figure 8 For the present invention Figure 2 Enlarged structural diagram of the structure at point D;

[0041] Figure 9 This is a schematic diagram of the longitudinal overhead template structure of the present invention;

[0042] Figure 10 This is a schematic diagram of the longitudinal top-view template structure of the present invention;

[0043] Figure 11 This is a schematic diagram of the horizontal template structure of the present invention.

[0044] Explanation of reference numerals in the attached figures:

[0045] 11. Longitudinal overhead formwork; 12. Longitudinal downward formwork; 13. Transverse formwork; 14. Chamfered formwork; 21. Tie rod; 31. Tie bar; 32. Fastener; 33. Top connecting block; 34. Tie bar base; 41. Top pad; 42. Support rod; 43. Support base; 44. Adjustable base; 51. Longitudinal support; 61. Climbing cone; 71. Climbing cone hole; 72. Tie rod hole; 81. Tower body; 91. Construction platform. Detailed Implementation

[0046] 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 a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0047] Please see Figure 1 and 2 This invention provides a method for reinforcing the inner formwork of a high-inclination tower, comprising:

[0048] The first segment of the climbing cone is pre-embedded through the climbing cone hole 71 opened on the template, and the tower body 81 is completed.

[0049] The construction platform is installed by bolting the wall-mounted bracket onto the pre-embedded climbing cone 61 in the upper section of the cast tower body 81, and the bottom beam and panel of the construction platform 91 are laid.

[0050] On the construction platform 91, the bracing base 43 and the tie base 34 are connected to the climbing cone 61 in the tower body 81 by bolts.

[0051] Install the longitudinal upward template 11, install the support rod 42 to support it between the support base 43 and the top pad 41, and pass the tie rod 21 through the tie rod hole 72 on the longitudinal upward template 11 to connect and fix the inner and outer templates. Adjust the adjustable bottom support of the support rod 42 to make the longitudinal upward template 11 accurately positioned to the design position.

[0052] Install the longitudinal top template 12, and pass the tie rod 21 through the tie rod hole 72 on the longitudinal top template 12 to connect and fix the inner and outer templates. Install the tie rod 31 and the fastener 32, align the end ring of the tie rod 31 with the hole of the top connecting block 33, insert the pin to connect, and hang the fastener 32 on the fixing pin of the tie base 34. Adjust the fastener 32 to position the longitudinal top template 12.

[0053] Install the horizontal template 13, and use tie rods 21 to connect and fix the inner and outer templates by passing through the tie rod holes 72 on the horizontal template 13. The two ends of the support rod 42 are pressed against the back rib of the horizontal template 13. The two horizontal templates 13 are reinforced by adjusting the adjustable bottom supports 44 at both ends. Finally, the chamfer template 14 is inserted into the chamfer position and reinforced by tie rods 21.

[0054] Install the pre-embedded climbing cone 61, use bolts to install and position it through the climbing cone hole 71, and pour the tower body concrete.

[0055] After the concrete pouring is completed and reaches the demolding strength, adjust the adjustable base support 44 to remove the support rods 42 and support bases 43, loosen the fasteners 32 to remove the tie rods 31 and tie bases 34, adjust the adjustable base support 44 of the longitudinal support 51 to remove the longitudinal support 51, remove the tie rods 21 in sequence, remove the longitudinal overhead formwork 11, longitudinal downward formwork 12, transverse formwork 13 and chamfered formwork 14, and finally remove the construction platform 91, and start the next segment of bridge tower construction.

[0056] After the steel reinforcement is installed, the present invention connects the template to the previous section of the cast tower body through a tie structure and a bracing structure. By adjusting the adjustable base and fasteners, the inner formwork of the bridge tower is fixed in place. The template is directly subjected to the solid concrete, and the fixing effect is better, which improves the safety and quality of bridge tower construction.

[0057] In one embodiment, please refer to Figure 6 and Figure 8 The specific installation steps for the longitudinal overhead template 11 are as follows:

[0058] Install the longitudinal upright template 11, and install the support rod 42 to support the support base 43 and the top pad 41;

[0059] The tie rod 21 passes through the tie rod hole 72 on the longitudinal overhead template 11 to connect and fix the inner and outer templates;

[0060] Adjust the adjustable base 44 at the bottom of the support rod 42 to position the longitudinal upright template 11.

[0061] In one embodiment, please refer to Figure 6 and Figure 9 A top pad 41 is installed on the steel back rib of the longitudinal upright template 11, which is at a 90-degree angle to the direction of the support. An adjustable bottom support 44 is installed on the support rod 42 to adjust the support length of the support structure.

[0062] In one embodiment, please refer to Figure 7 and Figure 10 The specific installation steps for the longitudinal top-mounted template 12 are as follows:

[0063] Install the longitudinal top template 12, and pass the tie rod 21 through the tie rod hole 72 on the longitudinal top template 12 to connect and fix the inner and outer templates. Install the tie rod 31 and the fastener 32. Align the end ring of the tie rod 31 with the hole of the top connecting block 33, insert the pin to connect, and hang the fastener 32 on the fixing pin of the tie base 34. Adjust the fastener 32 to position the longitudinal top template 12.

[0064] The top connecting block 33 is fixed to the steel back rib of the longitudinal top template 12, and the tie rod 31 connects the top connecting block 33 and the fastener 32.

[0065] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 11 The specific installation steps for the horizontal template 13 are as follows:

[0066] Install the horizontal template 13, and use tie rods 21 to connect and fix the inner and outer templates by passing through the tie rod holes 72 on the horizontal template 13. The two ends of the longitudinal bracing rod 51 are pressed against the back rib of the horizontal template 13. The two horizontal templates 13 are reinforced by adjusting the adjustable bottom supports 44 at both ends. Finally, the chamfered template 14 is inserted into the chamfered position and reinforced by tie rods 21.

[0067] In one embodiment, the pull base 34 is provided with a fixed pin, and the force-bearing surface of the support base 43 is at a 90-degree angle to the support direction.

[0068] In one embodiment, please refer to Figure 5 The steps before pouring the 81 concrete for the tower body also include,

[0069] Install climbing cones 61 on the longitudinal overhead template 11 and the longitudinal downward template 12, and fix the climbing cones 61 with screws through the climbing cone holes 71 on the longitudinal overhead template 11 and the longitudinal downward template 12.

[0070] In one embodiment, please refer to Figure 5 The specific steps for installing the tie rod base 34, the brace base 43, and the construction platform 91 on the first tower section 81 are as follows:

[0071] First, install the construction platform 91;

[0072] On the construction platform 91, screws are used to connect the tie base 34 and the support base 43 to the climbing cone 61 in the already poured tower body 81, and the tie base 34 and the support base 43 are installed tightly against the inner wall of the tower body 81.

[0073] The longitudinal overhead template 11, the longitudinal downward template 12, and the transverse template 13 are wooden templates, while the chamfered template 14 is a steel template.

[0074] The present invention also provides a method for dismantling the internal formwork system, specifically as follows: after the concrete pouring is completed and the formwork is demolded, the adjustable base support 44 is adjusted to dismantle the support rods 42 and support bases 43, the fasteners 32 are loosened to dismantle the tie rods 31 and tie bases 34, the longitudinal support rods 42 and adjustable base support 44 are adjusted to dismantle the longitudinal support 51, the tie rods 21 are dismantled in sequence, the longitudinal overhead formwork 11, the longitudinal downward formwork 12, the transverse formwork 13 and the chamfered formwork 14 are dismantled, and finally the construction platform 91 is dismantled.

[0075] A reinforcement device for the inner formwork of a high tower with a large inclination angle includes a longitudinal upward formwork 11, a longitudinal downward formwork 12, and a transverse formwork 13 arranged around the tower body 81. The inner and outer longitudinal upward formwork 11, longitudinal downward formwork 12, and transverse formwork 13 are all connected by tie rods 21. The longitudinal downward formwork 12 between adjacent first tower sections 81 is positioned by tie rods 31, the longitudinal upward formwork 11 between adjacent first tower sections 81 is positioned by bracing rods 42, and the transverse formwork 13 between adjacent first tower sections 81 is positioned by longitudinal bracing 51.

[0076] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0077] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for installing and reinforcing the inner formwork of a high tower with a large inclination angle, characterized in that... ,include: Pre-embed climbing cone (61) and construct the first tower column; A tie rod base (34), a bracing base (43), and a construction platform (91) are installed on the first tower section (81) via a climbing cone (61). Install the longitudinal overhead template (11), and reinforce the template by positioning the support rods (42) and tie rods (21); Install the longitudinal top-mounted template (12), and reinforce the template by positioning it with tie rods (31) and tie screws (21); Install the horizontal template (13), position and reinforce the template by longitudinal bracing (51) and tie rods (21), insert the chamfered template (14), and complete the installation and reinforcement of the entire inner mold system; Pour concrete for the tower body (81); After the concrete of the tower body (81) has hardened, the inner formwork system is removed, and the next section of the tower body (81) is constructed in a cycle.

2. The method for installing and reinforcing the inner formwork of a high tower with a large inclination angle as described in claim 1, characterized in that: The specific installation steps for the longitudinal overhead template (11) are as follows: Install the longitudinal upright template (11), and install the support rod (42) between the support base (43) and the top pad (41); The tie rod (21) passes through the tie rod hole (72) on the longitudinal overhead template (11) to connect and fix the inner and outer templates; Adjust the adjustable base (44) at the bottom of the support rod (42) to position the longitudinal upright template (11).

3. The method for installing and reinforcing the inner formwork of a high tower with a large inclination angle as described in claim 2, characterized in that: The longitudinal upright template (11) is provided with a top pad (41) on the steel back rib, which is 90 degrees to the direction of the support. The support rod (42) is provided with an adjustable bottom support (44) to adjust the support length of the support rod (42).

4. The method for installing and reinforcing the inner formwork of a high tower with a large inclination angle as described in claim 1, characterized in that: The specific installation steps for the longitudinal planar template (12) are as follows: Install the longitudinal planar template (12), and pass the tie rod (21) through the tie rod hole (72) on the longitudinal planar template (12) to connect and fix the inner and outer templates. Install the tie rod (31) and fastener (32). Align the end ring of the tie rod (31) with the hole of the top connecting block (33), insert the pin to connect, and hang the fastener (32) on the fixing pin of the tie base (34). Adjust the fastener (32) to position the longitudinal planar template (12). The top connecting block (33) is fixed on the steel back rib of the longitudinal top template (12), and the tie rod (31) connects the top connecting block (33) and the fastener (32).

5. The method for installing and reinforcing the inner formwork of a high tower with a large inclination angle as described in claim 1, characterized in that: The specific installation steps for the horizontal template (13) are as follows: Install the transverse template (13), and pass the tie rod (21) through the tie rod hole (72) on the transverse template (13) to connect and fix the inner and outer templates. The two ends of the longitudinal support (51) rod are pressed against the back rib of the transverse template (13). By adjusting the adjustable bottom support (44) at both ends, the two transverse templates (13) are reinforced. Finally, the chamfer template (14) is inserted into the chamfer position and reinforced by the tie rod (21).

6. The method for installing and reinforcing the inner formwork of a high tower with a large inclination angle as described in claim 1, characterized in that: The pull base (34) is provided with a fixed pin, and the force-bearing surface of the support base (43) is at a 90-degree angle to the support direction.

7. A method for installing and reinforcing the inner formwork of a high tower with a large inclination angle as described in any one of claims 1-6, characterized in that: The steps prior to pouring the concrete for the tower body (81) also include, Install climbing cones (61) on the longitudinal overhead template (11) and the longitudinal downward template (12), and fix the climbing cones (61) with screws through the climbing cone holes (71) on the longitudinal overhead template (11) and the longitudinal downward template (12).

8. The method for installing and reinforcing the inner formwork of a high tower with a large inclination angle as described in claim 1, characterized in that: The specific steps for installing the tie rod base (34), the brace base (43), and the construction platform (91) on the first tower section (81) are as follows: First, install the construction platform (91); On the construction platform (91), screws are used to connect the tie base (34) and the support base (43) to the climbing cone (61) in the cast tower body (81), and the tie base (34) and the support base (43) are installed close to the inner wall of the tower body (81).

9. The method for installing and reinforcing the inner formwork of a high tower with a large inclination angle as described in claim 1, characterized in that: The longitudinal overhead template (11), longitudinal downward template (12), and transverse template (13) are wooden templates, while the chamfered template (14) is a steel template.

10. A reinforcement device for the inner formwork of a high-inclination tower, employing the reinforcement method for the inner formwork of a high-inclination tower as described in claim 1, comprising a longitudinal upward-facing template (11), a longitudinal downward-facing template (12), and a transverse template (13) arranged around the tower body (81), characterized in that: The longitudinal overhead template (11), longitudinal downward template (12), and transverse template (13) are all connected by tie rods (21). The longitudinal downward template (12) between adjacent first tower sections (81) is positioned by tie rods (31), the longitudinal overhead template (11) between adjacent first tower sections (81) is positioned by bracing rods (42), and the transverse template (13) between adjacent first tower sections (81) is positioned by longitudinal bracing (51).

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