Supporting beam for supporting foundation pit fender post

Abstract

The utility model provides a supporting beam for supporting a foundation pit fender post. The supporting beam comprises a connecting piece, an angle brace and a hyperbolic arched beam. The connecting pieces are fixed to the foundation pit fender posts, the foundation pit fender posts on one side of a foundation pit are integrated through the connecting pieces, and the bearing capacity of the fender posts connected into a whole is enhanced through the connecting pieces. The connecting pieces are connected to form a rectangular structure, and the connecting pieces in the front-back direction and the connecting pieces in the left-right direction support each other. The angle braces are located in the right angles of the rectangular structure formed by the connecting pieces, are of isosceles triangle structures and support the connecting pieces so as to improve the stability of the rectangular structure. A hyperbolic arched girder is arranged between every two angle braces, and the two ends of the hyperbolic arched girders are connected to the angle braces so as to mutually provide supporting force in the horizontal direction; the hyperbolic arched beams are arched in the horizontal direction and the vertical direction, so that the bearing capacity is improved. A string beam is arranged between every two angle braces, and the string beams provide supporting force for the angle braces and the hyperbolic arched beams.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundation pit enclosure, in particular to a support beam used for supporting foundation pit enclosure piles. Background Art

[0002] The support beam of the foundation pit retaining piles is the structure that supports the retaining piles inside the foundation pit. It is used to prevent the soil at the edge of the foundation pit from deforming or even collapsing, ensure construction safety, and reduce the impact on buildings around the foundation pit.

[0003] The support beams of the foundation pit retaining piles are constructed by concrete casting or steel structure assembly. The support beams of the foundation pit retaining piles span the foundation pit. The large-span support beams require additional support structures to balance the shear force. The additional support structures affect the efficiency of construction operations such as foundation pit excavation. Utility Model Content

[0004] The purpose of the utility model is to provide a support beam for supporting foundation pit retaining piles, aiming to solve the problem in the prior art that the support structure of the additional support beam affects the efficiency of construction operations such as foundation pit excavation. To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A support beam for supporting foundation pit retaining piles, comprising a frame and a hyperbolic arch beam; the frame is located inside the foundation pit retaining piles, and the frame is fixedly connected to the foundation pit retaining piles to connect the foundation pit retaining piles into a whole; the hyperbolic arch beam is located inside the frame, and the hyperbolic arch beam is an arch structure in both horizontal and vertical directions, and the arch structures of the hyperbolic arch beam in both horizontal and vertical directions face the frame.

[0006] Preferably, the frame includes connecting pieces; there are four connecting pieces, which are fixed to the inner sides of the foundation pit retaining piles, and are connected end to end to form a rectangular structure; the connecting pieces are fixedly connected to the foundation pit retaining piles to connect the foundation pit retaining piles into a whole.

[0007] Preferably, corner braces are provided in the right angles of the rectangular structure composed of the connecting members, and the corner braces are isosceles right triangle structures, and flat plates perpendicular to the right angle sides are provided at the two base angles of the isosceles right triangle; the corner braces are fixedly connected to the ends of two adjacent connecting members through the flat plates.

[0008] Preferably, a hyperbolic arch beam is arranged between every two angle braces; a square block is arranged at the top corner of the angle brace, and a slot is arranged along the right-angle side of the square block; mounting plates are arranged at both ends of the hyperbolic arch beam, and the mounting plates can be detachably installed in the slot.

[0009] Preferably, a chord beam is arranged between every two corner supports, and two ends of the chord beam respectively abut against the square blocks of the two corner supports.

[0010] Preferably, a support member is provided between the hyperbolic arch beam and the connecting member, and a plurality of the support members are linearly distributed along the connecting member.

[0011] The beneficial effects are: 1. Through the hyperbolic arch beam, the good bending resistance of the arch structure is utilized to improve the bearing capacity of the support beam, reduce the use of additional support structures to balance the shear force in the support beam, increase the excavation space, and improve construction efficiency.

[0012] 2. By setting up a frame, the foundation pit retaining piles are connected into a whole to improve the bearing capacity of the retaining piles themselves. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure viewed from above in a specific embodiment of the utility model;

[0015] Figure 3 In the specific embodiment of the utility model Figure 2 Section view along AA;

[0016] Figure 4 In the specific embodiment of the utility model Figure 3 A schematic diagram of the structure at X is enlarged;

[0017] Figure 5 In the specific embodiment of the utility model Figure 1 Schematic diagram of the structure after removing the foundation pit retaining piles;

[0018] Figure 6 It is a structural schematic diagram of a corner brace in a specific embodiment of the utility model.

[0019] In the figure: 100, foundation pit retaining piles; 210, frame; 211, connecting piece; 220, angle brace; 230, hyperbolic arch beam; 240, chord beam; 250, supporting piece. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 6 As shown, a support beam for supporting foundation pit retaining piles includes a frame 210 and a hyperbolic arch beam 230.

[0022] The frame 210 is located inside the foundation pit retaining pile 100; the frame 210 includes four connecting members 211, which are connected end to end to form a rectangle, and the connecting members 211 are fixed to the foundation pit retaining pile 100 to connect the foundation pit retaining pile 100 into a whole. The pressure generated by the soil on a foundation pit retaining pile 100 is borne jointly by all the foundation pit retaining piles 100 on one side of the foundation pit where the foundation pit retaining pile 100 is located under the action of the connecting members 211.

[0023] In this embodiment, corner braces 220 are provided in the right angles of the rectangular structure formed by the connecting members 211. The corner braces 220 are isosceles right triangle structures. The two base angles of the isosceles right triangle are provided with a flat plate, and the flat plate is perpendicular to the right angle side of the isosceles triangle. The corner brace 220 is fixedly connected to the ends of two adjacent connecting members 211 through the flat plate. A square block is provided at the top corner of the corner brace 220, and a slot is opened on the square block along the right angle side of the isosceles right triangle, and the slot is used to connect the hyperbolic arch beam 230.

[0024] In this embodiment, the hyperbolic arch beam 230 is located on the inner side of the frame 210, and mounting plates are provided at both ends of the hyperbolic arch beam 230. A hyperbolic arch beam 230 is provided between every two angle braces 220, and the mounting plates at both ends of the hyperbolic arch beam 230 are respectively installed in the slots of the corresponding angle braces 220; the hyperbolic arch beam 230 is arched in both the horizontal and vertical directions, and the arched structures of the hyperbolic arch beam 230 in the horizontal and vertical directions are both facing the frame 210; when the arched structure of the hyperbolic arch beam 230 is under pressure, the part of the arched structure under pressure transfers the pressure to the adjacent part perpendicular to the pressure direction, and the various parts of the arched structure squeeze each other, and the arched structure can disperse the pressure to the supporting points on both sides, so as to reduce the local stress concentration of the arched structure and improve the bearing capacity of the horizontal and vertical surfaces of the hyperbolic arch beam 230.

[0025] In this embodiment, a chord beam 240 is disposed between every two angle braces 220, and bosses are disposed at both ends of the chord beam 240, through which the chord beam 240 is bolted to the end faces of the square blocks of the angle braces 220. The chord beam 240 provides horizontal support for the angle braces 220 and the hyperbolic arch beam 230.

[0026] In this embodiment, a support member 250 is provided between the hyperbolic arch beam 230 and the connecting member 211 ; a plurality of support members 250 are linearly distributed along the connecting member 211 , and the connecting member 211 is subjected to soil pressure, which is then transmitted to the hyperbolic arch beam 230 through the support member 250 .

[0027] Working process: Since the connecting piece 211 connects the foundation pit retaining piles 100 on one side of the foundation pit into a whole, the pressure generated by the soil on one foundation pit retaining pile 100 is borne by all the foundation pit retaining piles 100 on one side, thereby improving the bearing capacity of the foundation pit retaining piles 100 themselves.

[0028] The pressure borne by the foundation pit maintenance pile 100 is directly transmitted to the connecting piece 211. The corner brace 220 supports the ends of the adjacent connecting pieces 211 through the flat plate at the bottom angle. After the front-to-back connecting piece 211 transmits the pressure to the corner brace 220, the corner brace 220 transmits the pressure in the front-to-back direction to the ends of the connecting piece 211 in the left-to-right direction; the ends of the adjacent connecting pieces 211 provide support force to each other through the corner brace 220.

[0029] The shear force in the middle of the connecting member 211 is transmitted to the hyperbolic arch beam 230 through the support member 250 in the form of pressure. After the hyperbolic arch beam 230 in the front-to-back direction is subjected to the pressure, the hyperbolic arch beam 230 in the front-to-back direction exerts pressure in the left-to-right direction on the diagonal brace 220 at the front and rear ends, as well as pressure in the front-to-back direction caused by the slight deformation of the hyperbolic arch beam 230. The diagonal brace 220 converts the pressure transmitted by the hyperbolic arch beam 230 in the front-to-back direction into a supporting force for the hyperbolic arch beam 230 in the left-to-right direction in the corresponding direction through the slot. Based on this, the hyperbolic arch beam 230 in the front-to-back direction and the hyperbolic arch beam 230 in the left-to-right direction provide supporting force to each other.

[0030] The chord beam 240 is used to support the hyperbolic arch beam 230 and the angle brace 220. The chord beam 240 shares the pressure borne by the hyperbolic arch beam 230 and the angle brace 220 to prevent the slot from being deformed due to excessive pressure, so as to improve the bearing capacity and stability of the supporting structure.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A support beam for supporting foundation pit retaining piles, characterized by: It includes a frame (210) and a hyperbolic arch beam (230); The frame (210) is located inside the foundation pit retaining pile (100), and the frame (210) is fixedly connected to the foundation pit retaining pile (100) to connect the foundation pit retaining pile (100) into a whole; The hyperbolic arch beam (230) is located inside the frame (210); the hyperbolic arch beam (230) is an arch structure in both the horizontal and vertical directions; and the arch structures of the hyperbolic arch beam (230) in both the horizontal and vertical directions face the frame (210).

2. A support beam for supporting foundation pit retaining piles according to claim 1, characterized in that: The frame (210) comprises connecting pieces (211); there are four connecting pieces (211), the connecting pieces (211) are fixed to the inner side of the foundation pit retaining piles (100), and the connecting pieces (211) are connected end to end to form a rectangular structure; the connecting pieces (211) are fixedly connected to the foundation pit retaining piles (100) to connect the foundation pit retaining piles (100) into a whole.

3. The support beam for supporting foundation pit retaining piles according to claim 2 is characterized in that: Corner braces (220) are provided in the right angles of the rectangular structure formed by the connecting members (211); the corner braces (220) are isosceles right triangle structures; two base angles of the isosceles right triangle are provided with flat plates perpendicular to the right angle sides; the corner braces (220) are fixedly connected to the ends of two adjacent connecting members (211) via the flat plates.

4. The support beam for supporting foundation pit retaining piles according to claim 3 is characterized in that: A hyperbolic arch beam (230) is arranged between every two corner braces (220); a square block is arranged at the top corner of the corner brace (220), and a clamping groove is arranged in the direction of the right-angle side of the square block; and mounting plates are arranged at both ends of the hyperbolic arch beam (230), and the mounting plates can be detachably mounted in the clamping groove.

5. The support beam for supporting foundation pit retaining piles according to claim 3 is characterized in that: A chord beam (240) is arranged between every two corner supports (220), and two ends of the chord beam (240) respectively abut against the square blocks of the corresponding corner supports (220).

6. The support beam for supporting foundation pit retaining piles according to claim 2, characterized in that: A support member (250) is provided between the hyperbolic arch beam (230) and the connecting member (211), and a plurality of support members (250) are linearly distributed along the connecting member (211).

Images