A foundation pit steel enclosing purlin support structure

Abstract

The application belongs to the technical field of foundation pit support and provides a foundation pit steel enclosing purlin support structure, which comprises: an angle brace installed on a continuous wall and horizontally distributed along the extension direction of the continuous wall, the angle brace comprising: a horizontal support plate, a vertical support plate and a reinforcing plate, a steel enclosing purlin being located above the horizontal support plate, a front end of the horizontal support plate vertically extending upward with a side support plate, the side support plate being close to the front side of the steel enclosing purlin, the top of the vertical support plate being butt-jointed at the rear end of the horizontal support plate and fixing the vertical support plate with the continuous wall, and the reinforcing plate being obliquely arranged between the horizontal support plate and the vertical support plate; a hanging plate comprising: a hook plate and a supporting plate, the hook plate being hooked on the front side of the steel enclosing purlin, and the supporting plate being horizontally butt-jointed at the bottom of the hook plate for bearing the steel support. The application improves the angle brace and the hanging plate structure, so that the angle brace and the hanging plate structure can be associated with each other, greatly improving the bearing capacity of the hanging plate, and further making the overall support performance of the steel enclosing purlin stronger, thereby avoiding safety hazards of the support structure.

Description

Technical Field

[0001] This application relates to the field of foundation pit support technology, and in particular to a steel waler support structure for foundation pits. Background Technology

[0002] Steel walers, also known as steel fencing or steel retaining walls, are typically constructed by splicing together two or more steel sections of the same type and length. During splicing, it is crucial to ensure quality and that all steel sections share the load. Steel walers connect the supports and retaining piles; the gaps between them are filled with fine aggregate concrete to secure the steel supports and transfer loads.

[0003] Currently, the commonly used steel waler support structure in foundation pit support is the corner brace. The corner brace utilizes the principle of triangle stability to provide stable support for the steel waler. However, in actual operation, the steel support is not directly supported by the steel waler, but rather placed horizontally in the middle of the foundation pit. Usually, the ends of the steel support are supported by hanging plates, which are hooked onto the steel waler. The steel support maintains its stability by applying axial support force to the steel waler. Therefore, while the corner brace supports the steel waler, it also indirectly enhances the stability of the steel support. However, the hanging plate has limited load-bearing capacity, and after long-term use, it is inevitably affected by material aging or stress concentration, resulting in performance degradation and potential safety hazards. Furthermore, the cover plate and the corner brace are independent entities with no interaction between them, resulting in poor overall support performance and making it difficult to eliminate safety hazards.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this application is to provide a steel waler support structure for foundation pits, so as to solve or alleviate the problem that traditional steel waler support structures have a single function and cannot be coordinated with other structures to enhance the overall stability of the structure and eliminate safety hazards.

[0006] To achieve the above objectives, this application provides the following technical solution: This application provides a steel waler support structure for a foundation pit, comprising: corner braces installed on a continuous wall, with multiple corner braces horizontally distributed along the extension direction of the continuous wall; each corner brace includes a horizontal brace plate, a vertical brace plate, and a reinforcing plate; the steel waler is located above the horizontal brace plate; a side support plate extends vertically upward from the front end of the horizontal brace plate, the side support plate being in close contact with the front side of the steel waler; the top of the vertical brace plate is connected to the rear end of the horizontal brace plate, fixing the vertical brace plate to the continuous wall; and a reinforcing plate is obliquely disposed between the horizontal brace plate and the vertical brace plate; the hanging plate includes a hook plate and a support plate; the hook plate is hooked to the front side of the steel waler; the support plate is horizontally connected to the bottom of the hook plate for bearing the steel support; and an oblique support arm is provided between the bottom of the support plate and the reinforcing plates of the adjacent corner braces on both sides, thereby enhancing the vertical bearing capacity of the support plate.

[0007] Preferably, the corner brace is arranged at the lower center of the hanging plate, and the corner brace below the hanging plate is not provided with the side support plate.

[0008] Preferably, the front end of the cross brace of the corner brace below the hanging plate extends to the bottom of the support plate.

[0009] Preferably, both ends of the reinforcing plate are provided with connecting plates, and the width of the connecting plate is consistent with the width of the horizontal or vertical support plate.

[0010] Preferably, the connecting plate has wing plates on both sides, and the wing plates are attached to the side of the horizontal support plate or the vertical support plate.

[0011] Preferably, the inclined arm is telescopic.

[0012] Preferably, the inclined support arm consists of a threaded rod and a pair of sleeves; The two sleeves are respectively threaded onto both ends of the threaded rod.

[0013] Preferably, a pair of ear plates are provided at intervals on the front side of the lower plate of the support plate and the middle of the side plate of the reinforcing plate, and a hinge space is formed between the two ear plates; The two ends of the inclined support arm extend into the hinge space and are fixed to the ear plate by pins.

[0014] Preferably, baffles are provided on both sides of the upper surface of the support plate.

[0015] Preferably, a pillow plate is provided on the front side of the upper plate of the support plate to fill the space between the baffle and the steel support.

[0016] Compared with the closest prior art, the technical solution of this application has the following beneficial effects: This application improves the corner brace and hanging plate structure, enabling the corner brace and hanging plate structure to be interconnected, greatly enhancing the load-bearing capacity of the hanging plate, thereby making the overall support performance of the steel waler stronger and avoiding safety hazards in the support structure. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein: Figure 1 This is a schematic diagram of the front view of this application; Figure 2 This is a side view of the present application; Figure 3 This is a schematic diagram of the overall structure in actual application of this application.

[0018] In the diagram: 1. Horizontal brace; 2. Vertical brace; 3. Reinforcing plate; 4. Side support plate; 5. Hook plate; 6. Support plate; 7. Diagonal support arm; 701. Threaded rod; 702. Sleeve; 8. Connecting plate; 9. Wing plate; 10. Ear plate; 11. Baffle plate; 12. Pillow plate. Detailed Implementation

[0019] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0020] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to limit this disclosure.

[0022] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] This embodiment aims to provide a steel waler support structure for foundation pits. Its main function is to connect the corner braces and the hanging plate structure together to enhance the stability of the overall steel waler support structure and avoid potential safety hazards.

[0024] Reference Figures 1-3 The system includes: corner braces and hanging plates. The corner braces are installed on the continuous wall, and multiple corner braces are horizontally distributed along the extension direction of the continuous wall. The corner braces include: horizontal brace 1, vertical brace 2, and reinforcing plate 3. The steel waler is placed above the horizontal brace 1. The steel waler is composed of two or more I-beams. The front end of the horizontal brace 1 is vertically welded with a side support plate 4, and the side support plate 4 is in close contact with the front side of the steel waler. The top of the vertical brace 2 is welded to the rear end of the horizontal brace 1 and fixed to the continuous wall by expansion bolts. The reinforcing plate 3 is obliquely placed between the horizontal brace 1 and the vertical brace 2, and both ends of the reinforcing plate 3 are welded to the lower surface of the horizontal brace 1 and the front side of the vertical brace 2, respectively.

[0025] The hanging plate includes a hook plate 5 and a support plate 6. The hook plate 5 is L-shaped to hook onto the front side of the steel waler. The support plate 6 is horizontally welded to the bottom of the hook plate 5 to support the steel support. Triangular baffles 11 are welded to both sides of the upper plate surface of the support plate 6 to stabilize the position of the steel support on the support plate 6. A pillow plate 12 is welded to the front side of the upper plate surface of the support plate 6 to fill the space between the baffles 11 and the steel support. The support surface of the support plate 6 can be expanded by the pillow plate 12. The top of the pillow plate 12 has an arc-shaped groove that matches the shape of the steel support so that the steel support can be placed in the arc-shaped groove.

[0026] An inclined support arm 7 is provided between the bottom of the support plate 6 and the reinforcing plates 3 of the adjacent corner braces on both sides. The inclined support arm 7 enhances the vertical load-bearing capacity of the support plate 6. Specifically, a pair of ear plates 10 are welded at intervals on the front side of the lower plate of the support plate 6 and the middle of the side plate of the reinforcing plate 3. A hinge space is formed between the two ear plates 10. The two ends of the inclined support arm 7 extend into the hinge space and are fixed to the ear plates 10 by pins so that the inclined support arm 7 can be disassembled.

[0027] In this embodiment, a corner brace is also arranged in the lower middle part of the hanging plate, but the side support plate 4 is not provided on the horizontal support plate 1 of the corner brace to avoid interference with the hanging plate structure. The front end of the horizontal support plate 1 of the corner brace must extend to the bottom of the support plate 6 so that the corner brace can enhance the load-bearing capacity of the hanging plate.

[0028] In this embodiment, connecting plates 8 are welded to both ends of the reinforcing plate 3. The width of the connecting plate 8 is consistent with the width of the horizontal support plate 1 or the vertical support plate 2. Wing plates 9 are provided on both sides of the connecting plate 8. The wing plates 9 are attached to the side of the horizontal support plate 1 or the vertical support plate 2 to weld the wing plates 9 to the side of the horizontal support plate 1 or the vertical support plate 2. Alternatively, bolts can be used to connect the wing plates 9 and the horizontal support plate 1 or the vertical support plate 2 in series. By setting the wing plates 9, the strength of the reinforcing plate 3 in resisting lateral stress can be enhanced. Correspondingly, the side support plate 4 can also enhance the strength of the corner brace in resisting lateral stress. When the reinforcing plate 3 is subjected to lateral stress transmitted from the diagonal support arm 7, it will be transmitted to the corner brace itself. Thus, the side support plate 4 can indirectly ensure the stability of the diagonal support arm 7, thereby further enhancing the load-bearing capacity of the supporting plate 6 through the diagonal support arm 7, and avoiding the decline in the support performance or the breakage of the connection point of the hanging plate structure under long-term use.

[0029] In this embodiment, the inclined support arm 7 is telescopic. The inclined support arm 7 is composed of a threaded rod 701 and a pair of sleeves 702. The two sleeves 702 are respectively threaded onto the two ends of the threaded rod 701. When the inclined support arm 7 is telescopic, it is more convenient for the end of the inclined support arm 7 to extend into the corresponding hinge space, which facilitates the installation of the inclined support arm 7.

[0030] The steel waler support structure provided in this embodiment improves the corner brace and hanging plate structure, enabling the corner brace and hanging plate structure to be interconnected, greatly enhancing the load-bearing capacity of the hanging plate, thereby making the overall support performance of the steel waler stronger and avoiding safety hazards in the support structure.

[0031] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A steel waler support structure for a foundation pit, characterized in that, include: Angle bracing is installed on a continuous wall, and multiple angle bracings are horizontally distributed along the extension direction of the continuous wall. The angle bracing includes: a horizontal bracing plate, a vertical bracing plate, and a reinforcing plate. A steel waler is located above the horizontal bracing plate. A side support plate extends vertically upward from the front end of the horizontal bracing plate and is in close contact with the front side of the steel waler. The top of the vertical bracing plate is connected to the rear end of the horizontal bracing plate and the vertical bracing plate is fixed to the continuous wall. The reinforcing plate is obliquely arranged between the horizontal bracing plate and the vertical bracing plate. The hanging plate includes a hook plate and a support plate. The hook plate is hooked to the front side of the steel waler, and the support plate is horizontally connected to the bottom of the hook plate to support the steel support. The bottom of the support plate is provided with diagonal arms between it and the reinforcing plates of the adjacent corner braces on both sides, and the diagonal arms enhance the vertical load-bearing capacity of the support plate.

2. The foundation pit steel waler support structure according to claim 1, characterized in that, The corner brace is arranged at the lower center of the hanging plate, and the corner brace below the hanging plate is not provided with the side support plate.

3. The foundation pit steel waler support structure according to claim 2, characterized in that, The front end of the cross brace of the corner brace below the hanging plate extends to the bottom of the support plate.

4. The foundation pit steel waler support structure according to claim 1, characterized in that, Both ends of the reinforcing plate are provided with connecting plates, and the width of the connecting plate is consistent with the width of the horizontal or vertical support plate.

5. The foundation pit steel waler support structure according to claim 4, characterized in that, Both sides of the connecting plate are provided with wing plates, which are attached to the side of the horizontal support plate or the vertical support plate.

6. The foundation pit steel waler support structure according to claim 1, characterized in that, The inclined arm is telescopic.

7. The foundation pit steel waler support structure according to claim 6, characterized in that, The inclined support arm consists of a threaded rod and a pair of sleeves; The two sleeves are respectively threaded onto both ends of the threaded rod.

8. The foundation pit steel waler support structure according to claim 1, characterized in that, A pair of ear plates are provided at intervals on the front side of the lower plate of the support plate and the middle of the side plate of the reinforcing plate, and a hinge space is formed between the two ear plates. The two ends of the inclined support arm extend into the hinge space and are fixed to the ear plate by pins.

9. The foundation pit steel waler support structure according to claim 1, characterized in that, Both sides of the upper surface of the support plate are provided with baffles.

10. The foundation pit steel waler support structure according to claim 9, characterized in that, A pillow plate is provided on the front side of the upper plate of the support plate to fill the space between the baffle and the steel support.

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