Truss reinforcement structure of diaphragm wall reinforcement cage and intercity railway diaphragm wall

Abstract

The utility model discloses a truss reinforcement of diaphragm wall reinforcement cage and intercity railway diaphragm wall relates to diaphragm wall technical field, through setting up reinforcing part and two connecting components, when using, the installation position is formed respectively at the both ends of reinforcing part, and two connecting components connect an installation position respectively, and connecting component can be connected with the main reinforcement of diaphragm wall reinforcement cage, to make reinforcing part and reinforcement cage connect, and then make the utility model discloses can connect the main reinforcement on reinforcement cage through the reinforcing part set up respectively, make truss reinforcement and reinforcement cage connect without using the method of welding to connect, avoid the damage of welding to reinforcement cage, improve the security of reinforcement cage, guarantee the installation efficiency simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm wall technology, and in particular to a truss reinforcement structure for a diaphragm wall steel cage and an intercity railway diaphragm wall. Background Technology

[0002] In recent years, with the rapid development of urban rail transit and intercity railway construction, the overall stability requirements for the reinforcing cage of diaphragm walls, as a key structure for foundation pit support, have been increasing. In the field of reinforcing cage manufacturing technology, traditional reinforcement methods mostly rely on the arrangement of transverse tie bars to enhance the overall stiffness of the reinforcing cage by strengthening transverse constraints. This technical approach has evolved from simple binding to welding fixation, aiming to meet the needs of deep foundation engineering for the deformation resistance of reinforcing cages.

[0003] Currently, the reinforcement technology for diaphragm wall steel cages in intercity railways mainly adopts welding to fix the transverse tie bars. Specifically, during construction, the transverse tie bars need to be connected to the main reinforcement bars of the steel cage on site by welding, and the weld seam is used to form a rigid node, thereby ensuring the structural stability of the steel cage during hoisting and concrete pouring.

[0004] In the current technology for manufacturing diaphragm wall reinforcement cages, transverse tie bars are usually set to fix the reinforcement cage. However, when setting transverse tie bars, welding is usually used for fixing. Although welding can fix transverse tie bars, it carries the risk of damaging the reinforcement cage and has low installation efficiency. Utility Model Content

[0005] The main purpose of this utility model is to propose a truss reinforcement structure for a diaphragm wall steel cage and a diaphragm wall for intercity railways. It aims to solve the technical problems of the existing technology, which usually sets transverse tie bars to fix the steel cage when manufacturing diaphragm wall steel cages. However, when setting transverse tie bars, welding is usually used for fixing. Although welding can fix transverse tie bars, it poses a risk of damaging the steel cage and has low installation efficiency.

[0006] To achieve the above objectives, in a first aspect, this utility model proposes a truss reinforcement structure for a diaphragm wall steel cage, wherein the truss reinforcement structure is installed inside the diaphragm wall steel cage. Truss reinforcement structures include: A reinforcing component, wherein mounting positions are respectively formed at both ends of the reinforcing component; and, Two connecting components are provided, each connecting component being connected to one of the installation positions. The connecting components can be connected to the main reinforcement bars of the diaphragm wall reinforcement cage, so that the reinforcing component is connected to the reinforcement cage.

[0007] In one embodiment, the connecting component includes: A connecting assembly, the connecting assembly being detachably connected to the main reinforcing bar; and, A clamping assembly is disposed around the outer periphery of the connecting assembly to fix the connecting assembly to the main reinforcing bar.

[0008] In one embodiment, the connecting component includes a first snap-fit ​​half-ring and a second snap-fit ​​half-ring, wherein the first snap-fit ​​half-ring and the second snap-fit ​​half-ring interlock and can surround the outer periphery of the main reinforcing bar.

[0009] In one embodiment, the inner wall of the first snap-fit ​​half ring and / or the second snap-fit ​​half ring is provided with a compression friction layer, which frictionally engages with the main rib.

[0010] In one embodiment, one end of the first connecting half-ring along the axial direction is formed with a first slot that extends through the axial direction, and the other end is formed with a first engaging protrusion that extends through the axial direction. The second connecting half-ring has a second snap-fit ​​protrusion at one end along the axial direction that can be adapted to the first snap-fit ​​protrusion, and a second snap-fit ​​groove at the other end that can be adapted to the first snap-fit ​​protrusion.

[0011] In one embodiment, both the first and second snap-fit ​​half-rings are provided with a connecting ear, which are distributed opposite to each other and snapped together to form a connector.

[0012] In one embodiment, the clamping assembly includes a clamping ring and a locking member. The clamping ring surrounds the outer periphery of the first and second engaging half-rings. The outer wall of the clamping ring has a toothed groove extending along its length. The locking member is installed at one end of the clamping ring, and the other end of the clamping ring can pass through the locking member so that the locking member can lock the first and second engaging half-rings.

[0013] In one embodiment, the reinforcing component includes a transverse connecting rib and two connecting sleeves, the two connecting sleeves being respectively connected to both ends of the transverse connecting rib, and the two connecting sleeves being able to fasten one of the connecting members respectively to reinforce the steel cage.

[0014] In one embodiment, the truss reinforcement structure has multiple structures, which are spaced apart within the steel cage.

[0015] Based on the same technical concept, in a second aspect, this utility model also proposes an intercity railway diaphragm wall, including the truss reinforcement structure of the diaphragm wall steel cage described in the first aspect.

[0016] The technical solution of this utility model, by setting up a reinforcing component and two connecting components, forms installation positions at both ends of the reinforcing component during use. The two connecting components are each connected to one installation position, and the connecting components can be connected to the main reinforcement bars of the diaphragm wall reinforcement cage, so that the reinforcing component is connected to the reinforcement cage. This allows the utility model to connect the main reinforcement bars on the reinforcement cage through the set reinforcing components, so that the truss reinforcement structure is connected to the reinforcement cage without the need for welding, avoiding damage to the reinforcement cage caused by welding, improving the safety of the reinforcement cage, and ensuring installation efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the truss reinforcement structure provided by this utility model; Figure 2 A schematic diagram of the connecting component provided by this utility model; Figure 3 This is a schematic diagram of the structure of the diaphragm wall reinforcement cage, which is an example of this utility model.

[0019] Explanation of icon numbers: 100. Diaphragm wall reinforcement cage; 200. Reinforcing component; 300. Connecting component; 310. Connecting assembly; 320. Hooping assembly; 311. First snap-fit ​​half ring; 312. Second snap-fit ​​half ring; 313. Extrusion friction layer; 314. First slot; 315. First snap-fit ​​protrusion; 316. Second snap-fit ​​protrusion; 317. Second slot; 318. Connector; 321. Hooping ring; 322. Locking component; 210. Transverse connecting bar; 220. Connecting sleeve.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that if the embodiments of this utility model 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. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model 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 use of "and / or" or "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 simultaneously. Furthermore, 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, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] In existing technologies, the reinforcement of diaphragm wall steel cages in intercity railways mainly relies on the welding and fixing of transverse tie bars. During construction, the transverse tie bars and main reinforcement bars need to be rigidly connected on-site by welding. While this method can improve the overall stiffness of the steel cage, the welding operation carries the risk of heat-affected zone degradation of the steel reinforcement material. Furthermore, the welding process is time-consuming, affecting construction efficiency. Especially in large-scale steel cage manufacturing scenarios, frequent welding operations can easily cause surface damage to the main reinforcement bars, reducing structural durability.

[0025] This utility model proposes a truss reinforcement structure for a diaphragm wall steel cage and a diaphragm wall for intercity railways.

[0026] Please see Figures 1 to 3 For ease of understanding, this is a truss reinforcement structure for a diaphragm wall steel cage, which is installed inside the diaphragm wall steel cage 100. The truss reinforcement structure includes a reinforcing member 200 and two connecting members 300. The two ends of the reinforcing member 200 form installation positions, and the two connecting members 300 are connected to one installation position respectively. The connecting members 300 can be connected to the main reinforcement of the diaphragm wall reinforcement cage 100 so that the reinforcing member 200 is connected to the reinforcement cage.

[0027] Specifically, the reinforcing member 200 is arranged laterally inside the reinforcing cage, and its two ends are mechanically connected to the main reinforcement bars via connecting members 300. The connecting member 300 adopts a split structure and is fixed to the surface of the main reinforcement bars by fastening or clamping, achieving rigid constraint without welding. During installation, the connecting member 300 is assembled to the installation position of the reinforcing member 200 and then fixed to the main reinforcement bars by a mechanical locking device, forming a stable triangular truss structure. This structure can be arranged at intervals along the length of the reinforcing cage to form a multi-point support system.

[0028] In this embodiment, the risk of heat impact is avoided through mechanical connection. In the prior art, transverse tie rods require point-by-point welding, and construction efficiency is limited by the welding process. This solution uses prefabricated connecting components 300, enabling rapid assembly. Furthermore, the position of the welded and fixed transverse tie rods is difficult to adjust; the detachable structure of this solution allows for positional correction of the reinforcing components 200 during construction.

[0029] In this embodiment, by setting a reinforcing component 200 and two connecting components 300, installation positions are formed at both ends of the reinforcing component 200 during use, and the two connecting components 300 are respectively connected to one installation position. The connecting components 300 can be connected to the main reinforcement bars of the diaphragm wall steel cage 100, so that the reinforcing component 200 is connected to the steel cage. This allows the present invention to connect the main reinforcement bars on the steel cage through the set reinforcing components 200, so that the truss reinforcement structure is connected to the steel cage without the need for welding, avoiding damage to the steel cage caused by welding, improving the safety of the steel cage, and ensuring installation efficiency.

[0030] In one embodiment, the connecting component 300 includes a connecting assembly 310 and a clamping assembly 320. The connecting assembly 310 is detachably connected to the main reinforcement bar, and the clamping assembly 320 surrounds the outer periphery of the connecting assembly 310 to fix the connecting assembly 310 to the main reinforcement bar.

[0031] Specifically, after the connecting component 310 is installed on the surface of the main reinforcement, the clamping component 320 surrounds the connecting component 310 and applies clamping force, thereby forming a stable mechanical connection between the connecting component 310 and the main reinforcement. For example, when the connecting component 310 adopts a split interlocking semi-ring structure, the two interlocking semi-rings cover the main reinforcement and are fixed by the clamping component 320, thereby achieving the connection between the transverse stiffener and the main reinforcement without welding.

[0032] In this embodiment, a non-destructive connection is achieved through mechanical fastening and clamping, which avoids damage to the steel reinforcement performance by the heat-affected zone and improves installation efficiency.

[0033] In one embodiment, the connecting component 310 includes a first snap-fit ​​half-ring 311 and a second snap-fit ​​half-ring 312, wherein the first snap-fit ​​half-ring 311 and the second snap-fit ​​half-ring 312 snap together and can surround the outer periphery of the main reinforcement.

[0034] Specifically, during installation, the first snap-fit ​​semi-ring 311 and the second snap-fit ​​semi-ring 312 are placed on both sides of the main rib, respectively. Then, axial sliding is used to allow the snap-fit ​​protrusions of both to engage with the corresponding slots, completing the snap-fit ​​action. The resulting annular structure is further secured by the clamping assembly 320, thus avoiding welding. For example, one end of the first snap-fit ​​semi-ring 311 can be provided with an extension with a slot, and the other end can be provided with a snap-fit ​​protrusion. The corresponding end of the second snap-fit ​​semi-ring 312 is designed as a complementary structure, thereby achieving rapid alignment and locking.

[0035] In one embodiment, the inner wall of the first snap-fit ​​semi-ring 311 and / or the second snap-fit ​​semi-ring 312 is provided with a compression friction layer 313, which is in frictional engagement with the main rib.

[0036] Specifically, when the snap-fit ​​semi-ring is assembled to the main reinforcement, the extrusion friction layer 313 directly contacts the outer surface of the main reinforcement. When the clamping assembly 320 applies radial pressure, the friction material layer undergoes elastic deformation under pressure, thereby forming a tight fit with the main reinforcement. This structure allows the snap-fit ​​semi-ring to be fixed by friction without welding, avoiding damage to the coating on the surface of the reinforcement caused by the high temperature of welding, and simplifying the installation process.

[0037] In this embodiment, a physical friction locking mechanism is employed, which preserves the structural integrity of the main ribs while avoiding material performance degradation caused by welding. Furthermore, the elastic properties of the extruded friction layer 313 can adapt to the assembly requirements of main ribs with different diameters, offering wider application adaptability compared to welding.

[0038] In one embodiment, one end of the first connecting half-ring along the axial direction is formed with a first slot 314 extending through the axial direction, and the other end is formed with a first engaging protrusion 315 extending through the axial direction; one end of the second connecting half-ring along the axial direction is formed with a second engaging protrusion 316 that can be adapted to the first slot 314, and the other end is formed with a second slot 317 that can be adapted to the first engaging protrusion 315.

[0039] Specifically, the first and second connecting half-rings are axially aligned and interlocked. When the first interlocking protrusion 315 is inserted into the second interlocking groove 317, the second interlocking protrusion 316 simultaneously engages with the first interlocking groove 314, forming a bidirectional interlocking structure. This structure restricts the axial displacement of the two half-rings through the interlocking of the protrusions and grooves, while simultaneously achieving circumferential constraint through the friction of the contact surfaces. During installation, the operator only needs to axially align the two half-rings and apply a pushing force to complete the connection, without the need for welding or bolt tightening.

[0040] In this embodiment, a mechanical snap-fit ​​structure is adopted, which achieves connection through the physical interlocking of protrusions and grooves, avoiding damage to the material from the heat-affected zone. Furthermore, the welding process in existing technologies is time-consuming, while the snap-fit ​​structure of this solution enables rapid assembly, significantly improving construction efficiency.

[0041] In one embodiment, a connecting ear is provided on both the first snap-fit ​​half ring 311 and the second snap-fit ​​half ring 312, and the connecting ears are distributed opposite to each other and snap-fit ​​to form a connector 318.

[0042] Specifically, during installation, after the first snap-fit ​​semi-ring 311 and the second snap-fit ​​semi-ring 312 are enclosed around the outer periphery of the main reinforcement through a snap-fit ​​structure, the connecting ears on their outer walls are aligned and snapped together to form a fixed node for connecting the reinforcing component 200. For example, the connecting ears can be designed as plate-like structures with through holes, and bolts are used to pass through the through holes of the two connecting ears to achieve locking, thereby fixing the connecting sleeves 220 at both ends of the reinforcing component 200 to the connecting member 318. Thus, the transverse connecting reinforcement 210 forms a rigid connection with the connecting ears on the snap-fit ​​semi-rings through the connecting sleeves 220 at both ends, thereby enhancing the overall rigidity of the reinforcing cage.

[0043] In this embodiment, a non-welded connection is achieved by connecting the connecting lugs to form the connector 318, which avoids damage to the steel cage caused by high-temperature operations and simplifies the installation steps.

[0044] In one embodiment, the clamping assembly 320 includes a clamping ring 321 and a locking member 322. The clamping ring 321 surrounds the outer periphery of the first engaging half-ring 311 and the second engaging half-ring 312. The outer wall of the clamping ring 321 is formed with a toothed groove extending along its length. The locking member 322 is installed at one end of the clamping ring 321, and the other end of the clamping ring 321 can pass through the locking member 322 so that the locking member 322 can lock the first engaging half-ring 311 and the second engaging half-ring 312.

[0045] Specifically, during installation, after the first and second interlocking half-rings 311 and 312 are interlocked with the main reinforcement, the clamping ring 321 is wrapped around the outer circumference of the interlocking half-rings, and one end of the clamping ring 321 is inserted into the locking member 322. By pulling the free end of the clamping ring 321 through the locking member 322, the locking teeth inside the locking member 322 engage with the grooves of the clamping ring 321, forming a one-way lock. As the clamping ring 321 continues to tighten, the interlocking half-rings are pressed against the surface of the main reinforcement by the radial pressure applied by the clamping ring 321, thereby eliminating the gap between the interlocking half-rings and the main reinforcement and achieving a rigid connection.

[0046] In this embodiment, a mechanical locking structure is used, which allows installation to be completed without a heat source, avoiding potential damage to the reinforcing cage caused by welding. Furthermore, the engagement of the clamping ring 321 and the locking element 322 enables rapid fastening, significantly reducing construction time compared to welding.

[0047] In one embodiment, the reinforcing member 200 includes a transverse connecting rib 210 and two connecting sleeves 220. The two connecting sleeves 220 are respectively connected to both ends of the transverse connecting rib 210, and the two connecting sleeves 220 can respectively fasten a connector 318 to reinforce the steel cage.

[0048] Specifically, during installation, the inner diameter of the connecting sleeve 220 is designed to be slightly larger than the outer diameter of the connector 318, for example, the inner diameter can be set to 50-60 mm, so that the connecting sleeve 220 can completely enclose the connector 318. When the connecting sleeve 220 is fastened to the connector 318, the inner wall of the connecting sleeve 220 and the outer wall of the connector 318 form surface contact. At this time, the bolts are tightened by passing through the through holes on the connecting lugs, thus achieving a rigid connection between the transverse connecting rib 210 and the main rib. This structure eliminates the need for welding when installing the transverse connecting rib 210, and the fastening method between the connecting sleeve 220 and the connector 318 can accommodate minor deviations in the diameter of the main rib.

[0049] In this embodiment, the combination of mechanical fastening and bolt locking avoids the generation of heat-affected zones and achieves the function of detachable reuse.

[0050] In one embodiment, there are multiple truss reinforcement structures, which are spaced apart within the steel cage.

[0051] Specifically, multiple truss reinforcement structures are evenly arranged along the longitudinal axis of the steel cage, and each structure is detachably connected to the main reinforcement through connecting components 300. The spacing between adjacent structures can be set according to the length of the steel cage, the diameter of the main reinforcement, and the construction load; for example, the spacing can be set to 1.5 meters to 3 meters. The transverse connecting bars 210 of each structure form rigid nodes with the main reinforcement through connecting sleeves 220, thereby forming a continuous reinforcement network inside the steel cage.

[0052] In this embodiment, the load is distributed longitudinally along the steel cage by arranging multiple sets of independent reinforcing structures at intervals. At the same time, the detachable connection method avoids the heat effect of welding and reduces the risk of damage to the main reinforcement.

[0053] Based on the same technical concept, in a second aspect, this utility model also proposes an intercity railway diaphragm wall, including the truss reinforcement structure of the diaphragm wall steel cage 100 of the first aspect.

[0054] Specifically, during the construction of the diaphragm wall in the intercity railway, the truss reinforcement structure is non-weldedly connected to the main reinforcement bars of the steel cage via connecting component 300. The snap-fit ​​semi-ring in connecting component 300 is snapped onto the outer periphery of the main reinforcement bar, and radial pressure is applied by the clamping ring 321, generating friction between the snap-fit ​​semi-ring and the main reinforcement bar, thereby fixing the reinforcement component 200 in a predetermined position. The transverse connecting bars 210 in the reinforcement component 200 are snapped onto the connecting member 318 formed by the snap-fit ​​semi-ring via connecting sleeve 220, forming a transverse constraint, thereby enhancing the deformation resistance of the steel cage.

[0055] In this embodiment, a detachable mechanical connection method is adopted, which avoids the damage to the steel reinforcement material caused by high-temperature welding, while simplifying the installation process and shortening the construction cycle.

[0056] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. A truss reinforcement structure for a diaphragm wall steel cage, characterized in that, The truss reinforcement structure is installed inside the diaphragm wall reinforcement cage; Truss reinforcement structures include: A reinforcing component, wherein mounting positions are respectively formed at both ends of the reinforcing component; and, Two connecting components are provided, each connecting component being connected to one of the installation positions. The connecting components can be connected to the main reinforcement bars of the diaphragm wall reinforcement cage, so that the reinforcing component is connected to the reinforcement cage.

2. The truss reinforcement structure of the diaphragm wall steel cage as described in claim 1, characterized in that, The connecting component includes: A connecting assembly, the connecting assembly being detachably connected to the main reinforcing bar; and, A clamping assembly is disposed around the outer periphery of the connecting assembly to fix the connecting assembly to the main reinforcing bar.

3. The truss reinforcement structure of the diaphragm wall steel cage as described in claim 2, characterized in that, The connecting component includes a first snap-fit ​​half-ring and a second snap-fit ​​half-ring, wherein the first snap-fit ​​half-ring and the second snap-fit ​​half-ring interlock and can surround the outer periphery of the main reinforcing bar.

4. The truss reinforcement structure of the diaphragm wall steel cage as described in claim 3, characterized in that, The inner wall of the first snap-fit ​​half ring and / or the second snap-fit ​​half ring is provided with a compression friction layer, which is in frictional engagement with the main rib.

5. The truss reinforcement structure of the diaphragm wall steel cage as described in claim 4, characterized in that, One end of the first snap-fit ​​half ring along the axial direction is formed with a first slot that extends through the axial direction, and the other end is formed with a first snap-fit ​​protrusion that extends through the axial direction. The second snap-fit ​​half-ring has a second snap-fit ​​protrusion at one end along the axial direction that can be adapted to the first snap-fit ​​groove, and a second snap-fit ​​groove at the other end that can be adapted to the first snap-fit ​​protrusion.

6. The truss reinforcement structure of the diaphragm wall steel cage as described in claim 5, characterized in that, Both the first and second snap-fit ​​half-rings are provided with a connecting ear, which are distributed opposite to each other and snapped together to form a connector.

7. The truss reinforcement structure of the diaphragm wall steel cage as described in claim 3, characterized in that, The clamping assembly includes a clamping ring and a locking member. The clamping ring surrounds the outer periphery of the first and second snap-fit ​​half-rings. The outer wall of the clamping ring has a toothed groove extending along its length. The locking member is installed at one end of the clamping ring, and the other end of the clamping ring can pass through the locking member so that the locking member can lock the first and second snap-fit ​​half-rings.

8. The truss reinforcement structure of the diaphragm wall steel cage as described in claim 6, characterized in that, The reinforcing component includes a transverse connecting rib and two connecting sleeves. The two connecting sleeves are respectively connected to both ends of the transverse connecting rib, and the two connecting sleeves can respectively fasten one of the connecting pieces to strengthen the steel cage.

9. The truss reinforcement structure of the diaphragm wall steel cage as described in any one of claims 1 to 8, characterized in that, The truss reinforcement structure is multiple, and the multiple truss reinforcement structures are distributed at intervals within the steel cage.

10. A diaphragm wall for intercity railways, characterized in that, The truss reinforcement structure includes the diaphragm wall reinforcement cage as described in any one of claims 1 to 9.

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