A three-side supporting structure for basement outer wall reinforcement construction
By designing a three-sided support structure, utilizing three-sided supporting steel plate walls and diagonal reinforcement supports, combined with groove and convex strip designs, the problem of slow construction of traditional four-sided support structures is solved, achieving high efficiency and safety in the construction of basement exterior wall reinforcement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional basement exterior wall support structures require four-sided enclosure, and the concrete strength increases slowly, which cannot meet the needs of rapid construction and lacks reusability and safety.
The structure adopts a three-sided support structure, including the first support structure and the standard section. It uses three-sided supporting steel plate walls and diagonal reinforcement supports, combined with groove and convex strip design to form a stable support. The structural stability and safety are improved by bolt connection and waterproof rubber strip.
It achieves the safety and stability of the three-sided support structure, improves the efficiency and safety of basement exterior wall reinforcement construction, and is easy to process and install, making it suitable for local reinforcement needs.
Smart Images

Figure CN224338683U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building construction, specifically to a three-sided support structure for the reinforcement of basement exterior walls. Background Technology
[0002] With the deepening of urban renewal, renovation and reinforcement projects are showing an increasing trend. For the reinforcement of basement exterior walls, the traditional support structure adopts the inverted well wall method. The well wall needs to be sealed on all four sides, and the concrete strength increases slowly. It is necessary to wait for the process to be interrupted before the next section of earthwork can be excavated. There is a need to develop a new type of support structure. The new support structure needs to have the characteristics of reusability, safety, and structural stability. Utility Model Content
[0003] The purpose of this utility model is to provide a three-sided support structure for the construction of basement exterior wall reinforcement. Based on the characteristics of discontinuous and localized reinforcement of basement exterior wall reinforcement components, a reusable steel structure support structure is developed.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A three-sided support structure for basement exterior wall reinforcement construction is characterized by comprising a first support structure and several standard support structure sections sequentially stacked on the first support structure from bottom to top. Both the first support structure and the standard support structure sections include a main support structure. The main support structure includes three-sided supporting steel plate walls and diagonal reinforcing supports for stabilizing the three-sided supporting steel plate walls. The three-sided supporting steel plate walls are U-shaped in shape, with the U-shaped grooves facing the basement exterior wall, and the enclosed space is the operating space for construction personnel. The bottom surface of the side plates of the three-sided supporting steel plate walls of the first support structure is provided with cutting edges. The plate edges of the standard support structure sections opposite to the side plates of the first support structure are respectively provided with grooves and protrusions, and the protrusions are embedded in the grooves to form stable supports.
[0006] More preferably, the protrusions and grooves are provided along the entire length of the end faces of the three supporting steel plate walls, and a waterproof rubber strip is provided in the grooves.
[0007] Furthermore, the inside corner where the left and right side plates of the three-sided supporting steel plate wall connect with the front side plate is also provided with connecting angle steel. The connecting angle steel is attached to the two side plates and then connected by bolts. A waterproof rubber strip is also provided between the connecting angle steel and the two side plates.
[0008] Furthermore, the oblique reinforcing support is located between the left and right side plates and the front side plate, and includes a main support rod and connecting plates located on both sides of the main support rod. The connecting plates are connected to the side plates by bolts.
[0009] Furthermore, the left and right side plates and the front side plate of the three-sided supporting steel plate wall have the same structure, each including inner and outer steel plates and ribs provided in the interlayer between the inner and outer steel plates, and several threaded holes are reserved on the side plates.
[0010] Furthermore, the ribs are formed by cutting steel pipes.
[0011] Furthermore, the groove is a channel steel disposed between the inner and outer steel plates, and the protrusion is a square steel disposed between the inner and outer steel plates, the volume of the square steel being adapted to the internal volume of the channel steel.
[0012] Furthermore, the cutting edge is formed by angle steel with the corner facing downwards, and the two sides of the angle steel are welded and fixed to the inner and outer steel plates on both sides.
[0013] In addition, lifting holes are welded and fixed on the outer side of the three-sided supporting steel plate wall.
[0014] More preferably, the height of the first section of the support structure and the standard section of the support structure are both 1~1.2m.
[0015] Compared with the prior art, this utility model has the following features and beneficial effects:
[0016] Existing publicly available technologies employ four-sided support structures, which cannot provide a reinforcement working surface. This application presents a three-sided support structure, which is safe, stable, and highly practical, especially suitable for reinforcing components of basement exterior walls. This application is lightweight, easy to process and hoist, and highly practical, significantly improving the efficiency of trench excavation and support for basement exterior walls during application. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of the first section of the support structure involved in this application;
[0018] Figure 2 This is a structural schematic diagram of the first section of the support structure involved in this application;
[0019] Figure 3 This is a schematic diagram of the main support structure involved in this application.
[0020] Reference numerals: 1-First section of support structure; 2-Standard section of support structure; 11-Three-sided supporting steel plate wall; 12-Diagonal reinforcing support; 13-Cutting edge; 14-Groove; 15-Raised strip; 16-Connecting angle steel; 17-Connecting plate. Detailed Implementation
[0021] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.
[0022] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.
[0023] Example 1
[0024] A three-sided support structure for basement exterior wall reinforcement construction, such as Figures 1-3 As shown, the structure includes a first support structure 1 and several standard support structure sections 2 stacked sequentially on top of the first support structure 1 from bottom to top. Both the first support structure 1 and the standard support structure sections 2 include a main support structure, which includes three-sided supporting steel plate walls 11 and diagonal reinforcing supports 12 for stabilizing the three-sided supporting steel plate walls 11. The three-sided supporting steel plate walls 11 are U-shaped in shape, with the U-shaped groove facing the outer wall of the basement. The space enclosed by them is the operating space for construction personnel. The bottom surface of the side plates of the three-sided supporting steel plate walls 11 of the first support structure 1 is provided with cutting edges 13 for subsequent excavation. For soil cutting, the standard section 2 of the support structure and the side plate of the first section of the support structure 1 are stacked vertically. The opposite edges of the plate are respectively provided with grooves 14 and protrusions 15. The protrusions 15 are embedded in the grooves 14 to form stable support. The bottom groove of the subsequent standard section falls on the protrusion of the previous section. The height of the three-sided support structure is preferably 1 meter. After the soil in the trench is excavated to 1 meter, the first section is hoisted into the trench. After the subsequent standard sections are installed to the first section, manual excavation and soil removal work continues until the bottom of the trench is reached. The external wall reinforcement work is completed. One section of steel pipe support and connecting angle steel is removed, one section of maintenance structure is recovered, and one section is backfilled until the backfilling is completed.
[0025] The protruding strip 15 and the groove 14 are set along the end face of the three-sided supporting steel plate wall 11. The groove 14 is equipped with a waterproof rubber strip. The inside corner where the left and right side plates of the three-sided supporting steel plate wall 11 connect with the front side plate is also equipped with a connecting angle steel 16. The connecting angle steel 16 is attached to the two side plates and then connected by bolts. A waterproof rubber strip is also provided between the connecting angle steel 16 and the two side plates. The diagonal reinforcing support 12 is set between the left and right side plates and the front side plate, including the main support rod and the connecting plates 17 set on both sides of the main support rod. The connecting plates 17 are connected to the side plates by bolts. The connecting plates are welded to the side plates as a whole during factory prefabrication. On site, they are installed to the combined steel plate wall with screws to reinforce the three-sided maintenance structure and form a stable structure. The connecting plates 17 are made of 10mm thick steel plate.
[0026] Example 2
[0027] Based on Embodiment 1, the left and right side plates and the front side plate of the three-sided supporting steel plate wall 11 have the same structure, all including inner and outer steel plates and ribs in the interlayer between the inner and outer steel plates. Several threaded holes are reserved on the side plates. The ribs are made by cutting steel pipes and mainly serve to support the steel plates on both sides. The groove 14 is a channel steel set between the inner and outer steel plates. The protrusion 15 is a square steel set between the inner and outer steel plates. The volume of the square steel is adapted to the internal volume of the channel steel. The square steel can be embedded in the channel steel to form a mortise and tenon connection structure. The cutting edge 13 is made of angle steel with the corner facing down. The two sides of the angle steel are welded and fixed to the inner and outer steel plates on both sides. Lifting holes are welded and fixed on the outer side plate surface of the three-sided supporting steel plate wall 11. The height of the first section of the support structure 1 and the standard section of the support structure 2 is 1~1.2m. The inner and outer steel plates can be made of square steel plates with a thickness of 8mm and a length and width of 1m. The rib steel pipe support can be made of DN60 steel pipes. The bolts are of M12-M15 specifications.
[0028] The parts not covered in this utility model are the same as or can be implemented using existing technologies.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A three-sided support structure for basement exterior wall reinforcement construction, characterized by: The structure includes a first section of support structure (1) and several standard support structure sections (2) stacked sequentially on the first section of support structure (1) from bottom to top. Both the first section of support structure (1) and the standard support structure sections (2) include a main support structure. The main support structure includes a three-sided support steel plate wall (11) and an oblique reinforcing support (12) for stabilizing the three-sided support steel plate wall (11). The three-sided support steel plate wall (11) is U-shaped, and the U-shaped groove faces the outer wall of the basement. The enclosed space is the operating space for construction personnel. The bottom surface of the side plate of the three-sided support steel plate wall (11) of the first section of support structure (1) is provided with a cutting edge (13). The plate edges of the standard support structure sections (2) opposite to the side plate of the first section of support structure (1) are respectively provided with grooves (14) and protrusions (15). The protrusions (15) are embedded in the grooves (14) to form a stable support.
2. The three-sided support structure for basement exterior wall reinforcement construction according to claim 1, characterized in that: The protrusion (15) and groove (14) are arranged along the end face of the three-sided supporting steel plate wall (11), and a waterproof rubber strip is provided in the groove (14).
3. The three-sided support structure for basement exterior wall reinforcement construction according to claim 1, characterized in that: The three-sided supporting steel plate wall (11) is provided with connecting angle steel (16) at the inside corner where the left and right side plates are connected to the front side plate. The connecting angle steel (16) is attached to the two side plates and then connected by bolts. A waterproof rubber strip is also provided between the connecting angle steel (16) and the two side plates.
4. The three-sided support structure for basement exterior wall reinforcement construction according to claim 1, characterized in that: The oblique reinforcing support (12) is located between the left and right side plates and the front side plate, and includes a main support rod and connecting plates (17) located on both sides of the main support rod. The connecting plates (17) are connected to the side plates by bolts.
5. The three-sided support structure for basement exterior wall reinforcement construction according to claim 1, characterized in that: The left and right side plates and the front side plate of the three-sided supporting steel plate wall (11) have the same structure, including inner and outer steel plates and ribs in the interlayer between the inner and outer steel plates. Several threaded holes are reserved on the side plates.
6. The three-sided support structure for basement exterior wall reinforcement construction according to claim 5, characterized in that: The ribs are made by cutting steel pipes.
7. The three-sided support structure for basement exterior wall reinforcement construction according to claim 5, characterized in that: The groove (14) is a channel steel located between the inner and outer steel plates, and the protrusion (15) is a square steel located between the inner and outer steel plates. The volume of the square steel is adapted to the internal volume of the channel steel.
8. The three-sided support structure for basement exterior wall reinforcement construction according to claim 5, characterized in that: The cutting edge (13) is made of angle steel with the corner facing down, and the two sides of the angle steel are welded and fixed to the inner and outer steel plates on both sides.
9. The three-sided support structure for basement exterior wall reinforcement construction according to claim 5, characterized in that: Lifting holes are welded and fixed on the outer side of the three-sided supporting steel plate wall (11).
10. The three-side supporting structure for basement outer wall reinforcement construction according to any one of claims 1 to 9, characterized in that: The height of the first section of the support structure (1) and the standard section of the support structure (2) is 1~1.2m.