Assembly type steel inclined strut combined foundation pit support

Abstract

The utility model discloses an assembly type steel inclined strut combined foundation pit support and belongs to the technical field of building construction. The assembly type steel inclined strut combined foundation pit support comprises support piles, a top beam, inclined strut supports, steel inclined struts and support replacing belts. The supporting pile is located on one side of a basement structure, the top beam is in a bracket type and located at the top of the supporting pile, the inclined strut support is in an isosceles trapezoid shape and located at the position of a bottom plate of the basement structure, and anchor plates are embedded in the opposite faces of the top beam and the inclined strut support. The end sealing plates are arranged at the two ends of the steel inclined strut and connected with the anchor plate in a full welding mode. The foundation pit supporting structure with the stable height is formed by combining the supporting piles, the top beams, the inclined strut supports and the like, the resistance and stability of the whole structure are improved through the design of the bracket type top beams and the isosceles trapezoid inclined strut supports, the underground soil pressure is effectively resisted, and the safety of foundation pit construction is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a foundation pit support of an assembled steel diagonal brace combination. Background Art

[0002] After the excavation of the later area is completed, the construction of the later area basement structure begins. During the construction of the later area basement structure, a support belt is constructed between the basement structure and the supporting piles. The support belt is located at the basement floor and top plate. The thickness is consistent with the thickness of the floor structure at the support replacement location. It is cast and constructed at the same time as the support replacement location structure. At the connection between the support belt and the supporting pile, the surface concrete of the supporting pile should be chiseled off until the pile reinforcement is exposed.

[0003] During the construction of the main structure of the basement, a hole must be left where the steel diagonal brace passes through the basement roof. Steel mesh and water-stop steel plates are welded around the edges of the hole to seal it, so that the steel diagonal brace can be removed smoothly later. Summary of the invention

[0004] The utility model provides a foundation pit support with an assembled steel diagonal brace combination, which forms a highly stable foundation pit support structure through the combination of support piles, crown beams, diagonal brace supports, etc. The design of the corbel-type crown beam and the isosceles trapezoidal diagonal brace supports increases the resistance and stability of the overall structure, effectively resists the underground soil pressure, and ensures the safety of foundation pit construction.

[0005] In order to achieve the above purpose, the specific technical solution of this application is as follows:

[0006] A foundation pit support of assembled steel diagonal brace combination, comprising supporting piles, crown beams, diagonal brace supports, steel diagonal braces and replacement support belts; the supporting piles are located on one side of the basement structure, the crown beam is a corbel type, the crown beam is located on the top of the supporting piles, the diagonal brace supports are isosceles trapezoidal, the diagonal brace supports are located at the bottom plate position of the basement structure, and the opposite surfaces of the crown beam and the diagonal brace supports are pre-embedded with anchor plates; head plates are provided at both ends of the steel diagonal brace, and the head plates are fully welded to the anchor plates.

[0007] Based on the above technical features, further, the position where the steel diagonal brace passes through the top plate of the basement structure is a reserved hole, and wire mesh and water-stop steel plates are welded at the edges around the reserved hole to facilitate the smooth removal of the steel diagonal brace at a later time.

[0008] Based on the above technical features, preferably, the support replacement belt is located at the top plate and the bottom plate of the basement structure, and the thickness of the support replacement belt is consistent with the thickness of the top plate and the bottom plate of the basement structure.

[0009] Based on the above technical features, preferably, the anchor plate is evenly provided with a plurality of anchor bars, which are respectively oriented in a direction away from the steel brace to strengthen the connection with the brace support and the crown beam.

[0010] Based on the above technical features, preferably, a steel mesh is provided on the side of the supporting pile facing the basement structure, and concrete is sprayed, and the sprayed thickness of the concrete is 80mm-100mm.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] A highly stable foundation pit support structure is formed through the combination of supporting piles, crown beams, and diagonal bracing supports. The design of the corbel-type crown beam and isosceles trapezoidal diagonal bracing supports increases the resistance and stability of the overall structure, effectively resisting the underground soil pressure and ensuring the safety of foundation pit construction.

[0013] The steel diagonal brace passes through the top plate of the basement structure through the reserved hole. The edges of the reserved hole are welded with wire mesh and water-stop steel plates, so that the steel diagonal brace can be removed smoothly in the later stage, which reduces the construction difficulty and improves the construction efficiency of the project.

[0014] The reserved openings through which the steel diagonal braces pass through the basement structure are fixed with steel mesh and water-stopping steel plates, which can effectively prevent groundwater from entering the foundation pit through the openings and improve the water tightness of the basement.

[0015] The anchor bars evenly distributed on the anchor plate are oriented in the direction away from the steel diagonal brace, which strengthens the connection with the diagonal brace support and the crown beam, effectively disperses the force at the connection point, and improves the bearing capacity of the support system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a foundation pit support of an assembled steel diagonal brace combination according to the utility model;

[0017] Figure 2 It is a structural schematic diagram of a foundation pit support of an assembled steel diagonal brace combination according to the utility model;

[0018] List of Figure Symbols:

[0019] 1. Support piles; 2. Crown beam; 3. Diagonal brace support; 4. Steel diagonal brace; 5. Replacement brace belt; 6. Basement structure; 7. Top plate; 8. Bottom plate; 9. Reserved holes; 10. Waterstop steel plate; 11. Anchor plate; 12. Anchor bar; 13. Head plate; 14. Steel mesh. DETAILED DESCRIPTION

[0020] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0021] It should be noted that the words "up", "down", "left", "right", "front" and "rear" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] In the description of the present invention, "several" means two or more than two, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 As shown, an embodiment of a foundation pit support of an assembled steel diagonal brace combination includes a support pile 1, a crown beam 2, a diagonal brace support 3, a steel diagonal brace 4 and a brace replacement belt 5. The support pile 1 is located on one side of the basement structure 6, the crown beam 2 is a corbel type, the crown beam 2 is located on the top of the support pile 1, the diagonal brace support 3 is an isosceles trapezoid, the diagonal brace support 3 is located at the bottom plate 8 of the basement structure 6, and the opposite surfaces of the crown beam 2 and the diagonal brace support 3 are pre-buried with anchor plates 11; head plates 13 are provided at both ends of the steel diagonal brace 4, and the head plates 13 are fully welded to the anchor plates 11.

[0024] Furthermore, the position where the steel diagonal brace 4 passes through the top plate 7 of the basement structure is a reserved hole 9, and a wire mesh and a water-stop steel plate 10 are welded around the edges of the reserved hole 9 to facilitate the smooth removal of the steel diagonal brace at a later time.

[0025] Preferably, the support replacement belt 5 is located at the top plate 7 and the bottom plate 8 of the basement structure, and the thickness of the support replacement belt 5 is consistent with the thickness of the top plate and the bottom plate of the basement structure.

[0026] like Figure 2 As shown, preferably, the anchor plate 11 is evenly provided with a plurality of anchor bars 12, and the anchor bars 12 are respectively oriented in a direction away from the steel brace to strengthen the connection with the brace support and the crown beam.

[0027] Preferably, a steel mesh 14 is provided on the side of the support pile 1 facing the basement structure 6 and is sprayed with concrete, and the sprayed thickness of the concrete is 80 mm-100 mm.

[0028] It should be noted that the drawings only illustrate the technical ideas of the present invention, and the protection scope of the present invention cannot be limited by this shape. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. A foundation pit support composed of assembled steel diagonal braces, characterized in that: It includes supporting piles, crown beams, diagonal brace supports, steel diagonal braces and replacement brace belts; the supporting piles are located on one side of the basement structure, the crown beam is a corbel type, the crown beam is located on the top of the supporting piles, the diagonal brace supports are isosceles trapezoidal, the diagonal brace supports are located at the bottom plate position of the basement structure, and anchor plates are pre-buried on the opposite surfaces of the crown beam and the diagonal brace supports; head plates are provided at both ends of the steel diagonal brace, and the head plates are fully welded to the anchor plates; the top plate position where the steel diagonal brace passes through the basement structure is a reserved hole, and steel wire mesh and water-stop steel plates are welded at the edges around the reserved hole; the replacement brace belt is located at the top plate and bottom plate position of the basement structure, and the thickness of the replacement brace belt is consistent with the thickness of the top plate and bottom plate of the basement structure; the anchor plate is evenly provided with a number of anchor bars, and the anchor bars are respectively oriented in the direction away from the steel diagonal brace to strengthen the connection with the diagonal brace support and the crown beam.

2. The foundation pit support of the assembled steel diagonal brace combination according to claim 1 is characterized by: A steel mesh is provided on the side of the support pile facing the basement structure and is sprayed with concrete, and the sprayed thickness of the concrete is 80mm-100mm.

Images