A diagonal bracing of lattice column in advance

Abstract

This utility model discloses an advanced lattice column diagonal brace, relating to the field of building construction technology. It includes several L-shaped angle steel plates, each with a chamfered outer wall and two slots (one and two) on each side. Each slot has several threaded holes that penetrate the L-shaped angle steel plate. A splicing component is positioned between two slots (one) and within each slot (two). Each splicing component includes a retaining plate and several fastening bolts. Through the cooperation of slots (one and two) with splicing components (one and two), and the threaded connection between the fastening bolts (one and two) and the threaded holes, the traditional through-type screw fixing is replaced. Disassembly only requires removing the bolts. When splicing components (one and two) are damaged, they can be disassembled and replaced individually without requiring complete removal.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to an advanced lattice column diagonal brace. Background Technology

[0002] With the continuous development of urban underground space, deep foundation pit projects are increasing, placing higher demands on the safety, stability, and construction efficiency of foundation pit support systems. As a key technology to ensure the safety of foundation pit excavation and the stability of the surrounding environment, foundation pit support is constantly evolving in terms of structural forms and construction techniques.

[0003] Traditional foundation pit support methods typically employ pile banks with internal bracing, anchor bolt support, sheet piles, and SMW (Surface Mount Welded) piles. While these methods can meet support requirements to some extent, they still present numerous problems in complex geological conditions, soft soil layers, areas with abundant groundwater, or sensitive surrounding environments. For example, insufficient support stiffness and anchor bolt anchoring force can lead to excessive surface settlement; long installation cycles for support components can affect construction progress; and unstable joint connections can cause safety hazards.

[0004] In recent years, the combination of lattice columns and inclined bracing has been gradually applied in practical engineering. By setting inclined bracing with a certain angle, the lateral earth pressure on the support structure is effectively transferred to the stable soil layer inside the foundation pit, thereby improving the bearing capacity and stability of the overall support system. However, the connection between the inclined bracing and the main structure in the existing technology is relatively complex, and the construction process is easily affected by factors such as construction sequence and site limitations, making it difficult to achieve a fast, efficient and stable support effect.

[0005] In addition, in some deep and large foundation pits or soft soil foundations, conventional support methods (such as piles with inclined bracing and piles with anchor cables) often cannot effectively control the deformation of the foundation pit. Especially in the early stage of foundation pit excavation, when the retaining structure has not yet formed a complete support system, large displacement or even instability is likely to occur. Therefore, there is an urgent need for a new type of support structure that can play a role in advance before foundation pit excavation, has high rigidity and bearing capacity, and is easy to construct and install.

[0006] To address the aforementioned problems, this invention proposes a foundation pit support system based on advanced lattice column inclined bracing. This structure pre-forms a rigid support system with a certain inclination angle by pre-setting inclined piles with lattice column structures inside the foundation pit. This allows the support structure to bear part of the soil pressure in the early stages of foundation pit excavation, effectively controlling ground deformation and improving the overall stability of the foundation pit. Furthermore, this structure features convenient construction, strong adaptability, and reasonable stress distribution, making it suitable for the application needs of deep foundation pit support projects under various complex geological conditions.

[0007] Chinese patent CN217629833U discloses a high-strength steel lattice inclined pile, comprising a lattice inclined pile, wherein the lattice inclined pile includes four L-shaped steel plates, and multiple fixed steel plates are provided on the outer side between each pair of the four L-shaped steel plates. The L-shaped steel plates include a base layer, a reinforcing layer fixedly provided at the upper end of the base layer, and a compressive strength layer fixedly provided at the lower end of the base layer.

[0008] When local components of the steel inclined piles in this utility model and existing technologies are damaged, individual components cannot be repaired or replaced independently, resulting in a waste of steel resources and not in line with the concept of green construction. At the same time, the welded steel plates are set on the outer wall of the L-shaped angle steel plates, making the construction more complicated. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides an advanced lattice column diagonal brace to overcome the aforementioned technical problems in existing related technologies.

[0010] An advanced lattice column brace includes several L-shaped angle steel plates. Each L-shaped angle steel plate has a chamfered outer wall and two slots (one and two) on each side. Each slot has several threaded holes that penetrate the L-shaped angle steel plate. A splicing component (one) is positioned between two slots (one), and a splicing component (two) is positioned within each slot (two). The splicing component (one) includes a retaining plate (one) and several fastening bolts (one). The fastening bolts (one) are threadedly connected to the threaded holes on one side of the retaining plate (one) and the slot (one). The splicing component (two) includes a retaining plate (two) and several fastening bolts (two). The fastening bolts (two) are threadedly connected to the threaded holes on one side of the retaining plate (two) and the slot (two).

[0011] Preferably, the splicing component one further includes a filling plate one, which is fixedly connected to the card plate one.

[0012] Preferably, the splicing assembly one further includes a plurality of fastening nuts one, which are threaded onto a plurality of fastening bolts one, and one end of each fastening nut one is attached to two of the L-shaped angle steel plates. The two sides of the filling plate one are attached to the two L-shaped angle steel plates respectively, and the clamping plate one is attached to the inner wall of the clamping groove one.

[0013] Preferably, the splicing component two further includes a filling plate two, which is fixedly connected to the card plate two.

[0014] Preferably, the splicing component two further includes a plurality of fastening nuts two, which are threaded onto a plurality of fastening bolts two, and one end of each fastening nut two is attached to two of the L-shaped angle steel plates. The two sides of the filling plate two are attached to the two L-shaped angle steel plates respectively. The clamping plate two is attached to the inner wall of the clamping groove two. The L-shaped angle steel plates, the clamping plate one, the filling plate one, the clamping plate two, and the filling plate two are all made of steel.

[0015] Preferably, both the first and second clamping plates have several mounting slots on one side, and several fastening bolts are respectively arranged in the mounting slots.

[0016] Preferably, a concrete block is provided at the bottom of several of the L-shaped angle steel plates.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] This utility model provides an advanced lattice column diagonal brace that replaces the traditional through-bolt fixing method by using the cooperation of slot one and slot two with splicing components one and two, and the threaded connection of fastening bolts one and two with the mating bolt holes. Disassembly is simple; only the bolts need to be removed for easy disassembly and recycling. When splicing components one and two are damaged, they can be disassembled and replaced individually without the need for complete disassembly.

[0019] This utility model provides an advanced lattice column diagonal brace, which, through the cooperation of filling plate one and filling plate two with clamping plate one and clamping plate two, seals the joint gap of L-shaped angle steel plates, prevents water, soil and corrosive media from intruding, improves the sealing performance of the structure, and sets mounting grooves for bolts, thereby improving the overall structural strength and extending the service life of the structure. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a three-dimensional structural diagram of some parts of the present invention.

[0022] Figure 3 This is a schematic cross-sectional view of the L-shaped angle steel plate in this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of splicing component one and splicing component two in this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the card plate one in this utility model.

[0025] In the picture:

[0026] 1. Concrete block; 2. L-shaped angle steel plate; 200. Chamfer; 201. Slot 1; 202. Slot 2; 203. Butt bolt hole; 3. Splicing component 1; 301. Clamping plate 1; 302. Filler plate 1; 303. Fastening bolt 1; 304. Fastening nut 1; 305. Mounting groove; 4. Splicing component 2; 401. Clamping plate 2; 402. Filler plate 2; 403. Fastening bolt 2; 404. Fastening nut 2. Detailed Implementation

[0027] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0028] like Figure 1-5 As shown, this utility model provides an advanced lattice column diagonal brace, including several L-shaped angle steel plates 2. The outer walls of each L-shaped angle steel plate 2 are chamfered 200, and two slots, a first slot 201 and a second slot 202, are respectively provided on both sides. Several connecting screw holes 203 are provided in both slots 201 and 202, penetrating the L-shaped angle steel plates 2. A splicing component 3 is provided between two slots 201, and a splicing assembly 3 is provided in each of the two slots 202. The second component 4 is connected to the first component 3, which includes a clamping plate 301 and several fastening bolts 303. The fastening bolts 303 are threadedly connected to the mating screw holes 203 on one side of the clamping plate 301 and the slot 201. The second component 4 includes a clamping plate 401 and several fastening bolts 403. The fastening bolts 403 are threadedly connected to the mating screw holes 203 on one side of the clamping plate 401 and the slot 202. Concrete blocks 1 are provided at the bottom of several L-shaped angle steel plates 2.

[0029] When the basement structure construction is completed and the lattice column inclined piles need to be recycled, the workers first cut and remove the lattice column inclined piles, and then use electrical control equipment to disassemble several fastening bolts 303 and 403. This allows several clamping plates 301 and 401 to be removed from the outer wall of several L-shaped angle steel plates 2. The clamping plates 301 and 401 are then stacked together, and the materials can be transported together. The disassembly method is simple, and when a single clamping plate 301 or 401 is damaged, it can be removed and replaced with a new material without replacing the entire structure. It has strong applicability.

[0030] The 200° chamfer reduces the risk of injury to workers from the corners of the L-shaped angle steel plate during equipment handling, further improving its applicability.

[0031] like Figure 4In one embodiment, the splicing assembly 3 further includes a filling plate 302, which is fixedly connected to the clamping plate 301. The splicing assembly 3 also includes several fastening nuts 304, which are threaded onto several fastening bolts 303, with one end respectively attached to two L-shaped angle steel plates 2. Both ends of the filling plate 302 are respectively attached to the two L-shaped angle steel plates 2. The clamping plate 301 is attached to the inner wall of the clamping groove 201. The splicing assembly 4 further includes a filling plate 402. The splicing assembly 24 is fixedly connected to the card plate 2 401. It also includes several fastening nuts 2 404, which are threaded onto several fastening bolts 2 403 respectively. One end of each fastening nut 2 404 is attached to two L-shaped angle steel plates 2. The two sides of the filling plate 2 402 are attached to the two L-shaped angle steel plates 2 respectively. The card plate 2 401 is attached to the inner wall of the card slot 2 202. The L-shaped angle steel plate 2, card plate 1 301, filling plate 1 302, card plate 2 401 and filling plate 2 402 are all made of steel.

[0032] The filler plate 302 and the clamping plate 301 cooperate to seal the gap between the two L-shaped angle steel plates 2. The clamping plate 301 seals the two clamping slots 201. The filler plate 402 and the clamping plate 401 cooperate to seal the gap between the two L-shaped angle steel plates 2. The clamping plate 401 seals the two clamping slots 202. The filler plate 302 and the filler plate 402 can effectively improve the sealing performance of the installation of several L-shaped angle steel plates 2, thereby improving the stability of the entire structure and extending the service life of the structure. At the same time, the design of the clamping slots 201 and 202 can reduce the protruding structure and reduce the probability of the structure being damaged by collisions with the outside world, further extending the service life of the equipment.

[0033] like Figure 5 As shown, in one embodiment, a plurality of mounting grooves 305 are provided on one side of both the first mounting plate 301 and the second mounting plate 401, and a plurality of fastening bolts 303 and 403 are respectively disposed in the plurality of mounting grooves 305.

[0034] The mounting groove 305 can protect the fastening bolt 303 and the fastening bolt 403, preventing them from being easily touched and loosened due to their external location, thus further improving the structural stability.

[0035] The working principle of this advanced lattice column diagonal bracing will be explained in detail below:

[0036] The inclined piles of the lattice column form a spatial force-bearing system by connecting with the waler components. They are set up in advance before the foundation pit is excavated, playing the role of "advanced support". This effectively reduces the displacement and settlement of the surrounding soil during the foundation pit excavation process and protects the safety of adjacent buildings and underground pipelines.

[0037] The arrangement angle (40°~60°) and position of the inclined piles in the lattice column can be optimized according to the shape of the foundation pit, geological conditions, and stress characteristics, so as to more effectively distribute the soil pressure borne by the retaining wall and improve the overall support efficiency. At the same time, due to its high structural rigidity, it can also inhibit the deformation development of the support structure to a certain extent, and enhance the safety during the foundation pit construction process.

[0038] When the basement structure construction is completed and the inclined piles of the lattice columns need to be recycled, the workers first cut and remove the inclined piles of the lattice columns. Then, using electrical control equipment, they disassemble several fastening bolts 303 and 403, which allows them to remove several clamping plates 301 and 401 from the outer wall of several L-shaped angle steel plates 2. The clamping plates 301 and 401 are then stacked together, and the materials can be transported together. The disassembly method is simple, and if a single clamping plate 301 or 401 is damaged, it can be removed and replaced with a new material without replacing the entire structure. It is highly applicable. At the same time, the filling plates 302 and 402 can effectively improve the sealing of the installation of several L-shaped angle steel plates 2. The bolts are equipped with installation grooves, which improves the stability of the entire structure and extends the service life of the structure.

[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A type of advanced lattice column diagonal bracing, comprising several L-shaped angle steel plates (2), characterized in that: The outer walls of several L-shaped angle steel plates (2) are all chamfered (200), and slot 1 (201) and slot 2 (202) are respectively provided on both sides. Several butt screw holes (203) are provided in both slot 1 (201) and slot 2 (202). The butt screw holes (203) penetrate the L-shaped angle steel plate (2). A splicing component 1 (3) is provided between two slots 1 (201), and a splicing component 2 (4) is provided in two slots 2 (202). Component 1 (3) includes a clamping plate 1 (301) and several fastening bolts 1 (303), the fastening bolts 1 (303) being threadedly connected to the mating screw holes (203) on one side of the clamping plate 1 (301) and the clamping groove 1 (201). The splicing component 2 (4) includes a clamping plate 2 (401) and several fastening bolts 2 (403), the fastening bolts 2 (403) being threadedly connected to the mating screw holes (203) on one side of the clamping plate 2 (401) and the clamping groove 2 (202).

2. The advanced lattice column bracing according to claim 1, characterized in that: The splicing component (3) further includes a filling plate (302), which is fixedly connected to the card plate (301).

3. The advanced lattice column bracing according to claim 2, characterized in that: The splicing component 1 (3) also includes several fastening nuts 1 (304), which are threaded onto several fastening bolts 1 (303) respectively, and one end of each fastening nut 1 (304) is attached to two of the L-shaped angle steel plates (2). The two ends of the filling plate 1 (302) are attached to the two L-shaped angle steel plates (2) respectively. The clamping plate 1 (301) is attached to the inner wall of the clamping groove 1 (201).

4. The advanced lattice column bracing according to claim 3, characterized in that: The splicing component two (4) also includes a filling plate two (402), which is fixedly connected to the card plate two (401).

5. The advanced lattice column bracing according to claim 4, characterized in that: The splicing component two (4) also includes several fastening nuts two (404), which are threaded onto several fastening bolts two (403), and one end of each fastening nut two (404) is attached to two of the L-shaped angle steel plates (2). The two ends of the filling plate two (402) are attached to the two L-shaped angle steel plates (2). The clamping plate two (401) is attached to the inner wall of the clamping groove two (202). The L-shaped angle steel plate (2), the clamping plate one (301), the filling plate one (302), the clamping plate two (401), and the filling plate two (402) are all made of steel.

6. The advanced lattice column bracing according to claim 5, characterized in that: The first card plate (301) and the second card plate (401) are provided with a plurality of mounting slots (305) on one side, and a plurality of fastening bolts one (303) and fastening bolts two (403) are respectively arranged in the plurality of mounting slots (305).

7. The advanced lattice column bracing according to claim 1, characterized in that: A concrete block (1) is provided at the bottom of several of the L-shaped angle steel plates (2).

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