Segmented opposite-pulling-free single-side formwork erecting structure of steel-wood composite tripod

Abstract

The utility model discloses a segmented opposite-pulling-free single-side formwork erecting structure of a steel-wood composite tripod, and belongs to the field of building construction. The structure is specifically characterized in that the bottom of the tie piece is pre-buried in a bottom plate structure. And a plurality of shaped tripods are arranged above the bottom plate structure in parallel at intervals. The connecting beams are arranged along the arrangement direction of the shaped tripods in a full-length mode, and the connecting pull rods penetrate through the connecting beams to fixedly connect the shaped tripods with the pre-buried tying pieces. A template is vertically arranged on the upturning section of the bottom plate structure, and a first supporting piece is arranged on the outer side. A hole is formed in the first supporting piece. One end of the L-shaped screw rod is inserted into a hole formed in the template, and the other end of the L-shaped screw rod is provided with an E-shaped clamping piece for fixedly arranging the connecting steel pipe on the outer side of the first supporting piece. And one end of the J-shaped screw rod hooks the connecting steel pipe, and the other end of the J-shaped screw rod is fixedly connected with the side edge of the shaped tripod through a base plate and a matched nut. And an adjusting bolt for adjusting the vertical angle of the shaped tripod is also arranged at the bottom of the shaped tripod.

Description

A steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure Technical Field

[0001] This utility model belongs to the field of building construction, specifically relating to a steel-wood composite triangular frame segmented single-sided formwork support structure without tie rods. Background Technology

[0002] In the field of building construction, single-sided formwork technology plays an important role in specific engineering scenarios, primarily applicable to structural projects with limited working space or high waterproofing requirements. For example, in linear underground structures such as subway stations and tunnels, traditional double-sided formwork methods are often difficult to implement due to the limitations of underground space, while single-sided formwork technology can effectively solve this problem. In deep foundation pit projects near existing buildings in urban core areas, considering the impact on surrounding existing buildings and the stringent requirements for the waterproofing performance of the formwork structure, single-sided formwork technology also has unique advantages.

[0003] Currently, there are two main structural forms of single-sided formwork systems. One is the steel pipe scaffolding support system, which typically consists of a diagonal bracing frame system made of wooden formwork, timber, and steel pipe scaffolding. In actual construction, to ensure stability, tie rods penetrating the structure are required to connect it to the external envelope. However, this process can damage the building's external waterproofing layer, affecting the overall quality and lifespan of the project, limiting its application in projects with extremely high waterproofing requirements. The other is the standardized triangular frame support system. This system uses steel formwork and steel back bracing components, combined with prefabricated triangular support frames, eliminating the need for penetrating tie rods and achieving stability primarily through ground anchoring. However, this system has high material costs and poor overall economic efficiency, hindering large-scale application in engineering practice. Therefore, there is an urgent need to develop a new type of single-sided formwork system. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a segmented, tension-free, single-sided formwork structure for a steel-wood composite triangular frame.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] This utility model provides a segmented, tie-free, single-sided formwork structure for a steel-wood composite triangular frame, including tie members, connecting rods, connecting beams, a standardized triangular frame, templates, L-shaped connectors, and J-shaped connectors;

[0007] The bottom of the tie member is pre-embedded in the base plate structure, and the top is exposed with an arc-shaped part for connecting with the connecting rod; several standardized triangular frames are arranged parallel to each other above the base plate structure, and a second support member is arranged between the bottom of the standardized triangular frames and the base plate structure; the connecting beam is arranged along the arrangement direction of the standardized triangular frames at the right angle, and the connecting rod passes through the connecting beam to fix the standardized triangular frames to the pre-embedded tie members;

[0008] The upper section of the base plate structure is vertically equipped with a template for pouring the wall to be poured, and a first support is set on the outside of the template. The first support has several holes spaced along the height direction for setting L-shaped connectors. One end of the L-shaped screw in the L-shaped connector is inserted into the hole in the template, and the other end is equipped with a mountain-shaped clip to fix the connecting steel pipe on the outside of the first support. The J-shaped connector includes a J-shaped screw and a pad, wherein one end of the J-shaped screw hooks the connecting steel pipe, and the other end is fixedly connected to the side of the standardized tripod through the pad and a matching nut. The bottom of the standardized tripod is also equipped with an adjusting bolt for adjusting its vertical angle.

[0009] Preferably, the tie member is a steel bar tie ring.

[0010] Preferably, the connecting rod is an integral structure with a screw and double lugs. The double lugs are fixed to the exposed arc-shaped part of the tie member by bolt connection, and the screw is fixedly connected to the connecting beam by bolt connection.

[0011] Preferably, the connecting beam is made of double channel steel symmetrically spliced.

[0012] Preferably, both the first and second support members are made of timber.

[0013] Preferably, the template is made of wood.

[0014] Preferably, a steel pipe for connecting several standardized tripods is fixed on the hypotenuse of the standardized tripod, and the steel pipe is arranged along the entire length of the standardized tripod.

[0015] Preferably, a waterstop plate is pre-embedded in the upward section of the base plate structure.

[0016] Furthermore, the waterstop plate is made of steel plate.

[0017] Preferably, an operating platform is fixedly installed on the upper part of the standardized tripod.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] This invention, based on existing systems, organically combines a steel pipe scaffolding formwork support system with a standardized triangular frame steel formwork support system. Furthermore, it innovatively develops new connection nodes between the steel pipe scaffolding and formwork structure, and between the standardized triangular frame and the steel pipe, effectively ensuring the integrity of the support structure. This solution reduces construction costs while ensuring structural safety. In addition, by optimizing the inclined anchor nodes between the standardized triangular frame and the structure, replacing traditional inclined anchor rods with inclined tie rings, flexible angle adjustments can be made during the installation of the standardized triangular frame, greatly simplifying the installation process and improving construction efficiency. Attached Figure Description

[0020] Figure 1 is a side view of the installation of the single-sided formwork structure provided in this embodiment;

[0021] Figure 2 is a magnified view of a portion of Figure 1;

[0022] Figure 3 is a schematic cross-sectional view of the installation of the single-sided formwork structure provided in this embodiment;

[0023] Figure 4 is a magnified view of a portion of Figure 3;

[0024] Figure 5 is a schematic diagram of the standardized tripod provided in this embodiment;

[0025] Figure 6 is a schematic diagram of the adjustment bolt arrangement of the standardized tripod in this embodiment;

[0026] Figure 7 is a schematic diagram of the connecting rod provided in this embodiment, where (a) is the front view and (b) is the side view;

[0027] Figure 8 is a schematic diagram of the L-shaped connector provided in this embodiment;

[0028] Figure 9 is a schematic diagram of the J-type connector provided in this embodiment;

[0029] In the diagram: 1. Base plate structure, 101. Upward section, 2. Enclosure structure, 3. Waterproof mortar layer, 4. Waterstop plate, 5. Tie rod, 6. Connecting beam, 7. Standardized triangular frame, 8. Template, 9. First support component, 10. Connecting steel pipe, 11. L-shaped connector, 12. L-shaped screw, 121. Mountain-shaped clamp, 122. J-shaped connecting screw, 13. J-shaped screw, 131. Pad, 132. Adjusting bolt, 14. Operating platform, 15. Wall to be poured, 16. Second support component, 17. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. Technical features in various embodiments of this utility model can be combined appropriately without conflict.

[0031] In the description of this utility model, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features.

[0032] As shown in Figures 1 and 3, as a preferred embodiment of this utility model, this embodiment provides a segmented, tension-free, single-sided formwork structure for a steel-wood composite triangular frame. This single-sided formwork structure is installed on the outside of the wall 16 to be poured in the underground structure. Since the other side of the wall 16 has already been poured with the existing structural wall, only a single-sided formwork structure can be used to support the wall 16. An enclosure structure 2 is installed on the outside of the existing structural wall, and the surface of the enclosure structure 2 is leveled by spraying a waterproof mortar layer 3 and then covered with a reverse-adhesive waterproof material.

[0033] The single-sided formwork structure provided in this embodiment uses tie rods 5, connecting rods 6, connecting beams 7, standardized triangular frames 8, templates 9, first support members 10, L-shaped connectors 12, J-shaped connectors 13, and second support members 17. The standardized triangular frame 8 provided in this embodiment is shown in Figure 5. It should be noted that standardized triangular frames are common formwork structures in the construction field. This utility model does not limit the specific configuration of the standardized triangular frame; those skilled in the art can design suitable standardized triangular frames according to actual working conditions. The standardized triangular frame in this embodiment is formed by welding channel steel and square steel tubes. The side view of the triangular frame is a right-angled triangle, with the right-angled side symmetrically spliced ​​from double channel steel, and the remaining parts connected by welding square steel. The spacing between the double channel steels is controlled according to design parameters.

[0034] As shown in Figure 2, the bottom of the tie member 5 is pre-embedded in the base plate structure 1. In this embodiment, the tie member 5 is a steel bar tie ring, with its top exposed in an arc-shaped portion for connection with the connecting rod 6. Several standardized triangular frames 8 are arranged parallel to each other above the base plate structure 1, and a second support member 17 is provided between the bottom of the standardized triangular frames 8 and the base plate structure 1. The connecting beam 7 is arranged along the entire length of the standardized triangular frames 8 at the right angle, and the connecting rod 6 passes through the connecting beam 7 to fix the standardized triangular frames 8 to the pre-embedded tie member 5. In this embodiment, the connecting beam 7 is made of double channel steel symmetrically spliced.

[0035] The connecting rod 6 provided in this embodiment is shown in Figure 7, including a screw and double-sided lugs. The double-sided lugs are fixed to the exposed arc-shaped portion of the tie member 5 by bolt connection, and the screw is fixedly connected to the connecting beam 7 by bolt connection. This utility model uses inclined embedded steel bar pull rings, which allows for angle adjustment within a certain range when installing the standardized tripod, making the installation flexible.

[0036] In the construction of certain special parts of a building, an upturned section is installed above the concrete base slab structure. This upturned concrete structure primarily serves to block and restrain water flow, preventing it from entering the interior, while also enhancing the local stiffness and stability of the structure. In this embodiment, an upturned section 101 is installed near the existing structural wall of the base slab structure 1, and the upturned section 101 and the base slab structure 1 are poured together. Before the concrete of the upturned section 101 and the base slab structure 1 reaches its final set, a waterstop plate 4 is precisely embedded at the centerline of the upturned section 101. The waterstop plate 4 can be made of steel.

[0037] In this embodiment, a template 9 for pouring the wall 16 to be poured is vertically installed on the upward section 101 structure, and a first support member 10 is installed on the outside of the template 9. The template 9 is made of wood, and the first support member 10 is made of timber. Several holes for installing L-shaped connectors 12 are opened at intervals along the height direction on the first support member 10.

[0038] The L-shaped connector 12 provided in this embodiment, as shown in Figure 8, includes an L-shaped screw 121 and a U-shaped clamp 122. The L-shaped screw 121 includes two mutually perpendicular rod sections, one of which is used to mount the U-shaped clamp 122 and has external threads on its periphery, while the other section is inserted into a hole opened on the first support member 10. The U-shaped clamp 122 and the nut cooperate to fix the double-row connecting steel pipes 11 to the outside of the first support member 10.

[0039] As shown in Figure 4, in this embodiment, the right-angled side of the standardized tripod 8 is fixedly connected to the double-row connecting steel pipes 11 via a J-type connector 13. As shown in Figure 9, the J-type connector 13 provided in this embodiment includes a J-type screw 131 and a pad 132, wherein one end of the J-type screw 131 hooks onto the connecting steel pipe 11, and the other end is fixedly connected to the right-angled side of the standardized tripod 8 via the pad 132 and a matching nut.

[0040] In this embodiment, the bottom of the standardized tripod 8 is also equipped with an adjusting bolt 14, as shown in Figure 6. During the process of pouring concrete into the inside of the template 9, the pouring pressure of the concrete may cause the template 9 to tilt outward. Therefore, when setting up the standardized tripod 8, the angle of the standardized tripod 8 can be adjusted by using the adjusting bolt 14 to make it tilt slightly inward, thereby balancing the pouring pressure and preventing the template 9 from deforming.

[0041] To reinforce the connection of several standardized tripods 8, steel pipes are fixedly installed on the hypotenuses of the standardized tripods 8, and the steel pipes run the entire length of the standardized tripods 8. Several standardized tripods 8 are connected together by steel pipes. An operating platform 15 is also fixedly installed on the upper part of the standardized tripods 8 to facilitate the operation of construction personnel.

[0042] The embodiments described above are merely preferred solutions of this utility model, and are not intended to limit the scope of this utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this utility model. Therefore, all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A segmented, tension-free, single-sided formwork structure for a steel-wood composite triangular frame, characterized in that, The structure includes tie members (5), connecting rods (6), connecting beams (7), standardized tripods (8), templates (9), L-shaped connectors (12), and J-shaped connectors (13). The bottom of the tie member (5) is pre-embedded in the base plate structure (1), and the top is exposed in an arc-shaped part for connecting with the connecting rods (6). Several standardized tripods (8) are arranged parallel to each other above the base plate structure (1), and a second support member (17) is set between the bottom of the standardized tripods (8) and the base plate structure (1). The connecting beams (7) are arranged along the arrangement direction of the standardized tripods (8) at the right angles of the standardized tripods (8), and the connecting rods (6) pass through the connecting beams (7) to fix the standardized tripods (8) to the pre-embedded tie members (5). The upper section (101) of the base plate structure (1) is vertically set for pouring the concrete to be poured. The template (9) for pouring the wall (16) is provided with a first support member (10) on the outside of the template (9); the first support member (10) has several holes for setting L-shaped connectors (12) at intervals along the height direction; one end of the L-shaped screw (121) in the L-shaped connector (12) is inserted into the hole on the template (9), and the other end is provided with a mountain-shaped clip (122) to fix the connecting steel pipe (11) on the outside of the first support member (10); the J-shaped connector (13) includes a J-shaped screw (131) and a pad (132), wherein one end of the J-shaped screw (131) hooks the connecting steel pipe (11), and the other end is fixedly connected to the side of the standardized tripod (8) through the pad (132) and a matching nut; the bottom of the standardized tripod (8) is also provided with an adjusting bolt (14) for adjusting its vertical angle.

2. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 1, characterized in that, The tie member (5) is a steel bar tie ring.

3. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 1, characterized in that, The connecting rod (6) is an integral structure with a screw and double ear plates. The double ear plates are fixed to the exposed arc-shaped part of the tie member (5) by bolt connection, and the screw is fixedly connected to the connecting beam (7) by bolt connection.

4. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 1, characterized in that, The connecting beam (7) is made of double channel steel symmetrical splicing.

5. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 1, characterized in that, Both the first support member (10) and the second support member (17) are made of timber.

6. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 1, characterized in that, The template (9) is made of wood.

7. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 1, characterized in that, The standardized tripod (8) has a steel pipe fixed on its hypotenuse for connecting several standardized tripods (8), and the steel pipe is set along the entire length of the standardized tripod (8).

8. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 1, characterized in that, The top section (101) of the base plate structure (1) is pre-embedded with a waterstop plate (4).

9. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 8, characterized in that, The waterstop plate (4) is made of steel plate.

10. The steel-wood composite triangular frame segmented, tension-free, single-sided formwork structure according to claim 1, characterized in that, The standardized tripod (8) has an operating platform (15) fixedly installed on its upper part.

Images