Fish-belly sill concrete supporting structure of special-shaped foundation pit

Abstract

The utility model provides a special-shaped foundation pit fish belly sill concrete supporting structure which comprises a straight belly sill and a connecting sleeve, the connecting sleeve is arranged on the straight belly sill in an embedded mode, connecting shafts are installed on the two sides of the connecting sleeve in an embedded mode, an installation groove is formed in the middle of the connecting sleeve, fixing bolts are arranged at the two ends of the connecting sleeve, and limiting blocks are arranged at the two ends of the connecting sleeve. And the limiting block is in embedded installation connection with the connecting sleeve through a fixing bolt. Angle adjustment and supporting distance expansion and contraction are carried out on the supporting rods on the connecting sleeves, the supporting plates and the side wall of the foundation pit are fixed, then the vertical supporting strength and stability are improved through the supporting rods, and then expansion and contraction distance adjustment and fixation are carried out on the straight web girders through the connecting sleeves. And meanwhile, the fixing bolts are installed in the fixing holes in the inclined web girders in a penetrating mode, the limiting blocks are clamped in the I-shaped grooves of the inclined web girders, and therefore the inclined web girders and the connecting sleeves can be conveniently installed and used.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure installation, in particular to a fish belly beam concrete supporting structure of a special-shaped foundation pit. Background Art

[0002] Irregular-shaped foundation pit refers to a foundation pit with an irregular shape or a more complex geometric shape. The fish belly beam concrete support structure is a support structure used to support the slope and side walls of the irregular-shaped foundation pit to ensure the stability of the foundation pit and the safety of construction. The fish belly beam support structure is mostly composed of I-beam diagonal bars or trusses, which can effectively bear and support external loads. The beam body is in the form of a fish belly, and the strength of the steel beam is used to bear the foundation pit soil pressure, thereby supporting the foundation pit side walls. The fish belly beam concrete support structure is widely used in irregular-shaped foundation pit projects.

[0003] The "fish belly beam support structure with adjustable strut height" described in patent application number "CN202322704631.9" adopts the form of upper and lower two-section spliced ​​components to form a height-adjustable vertical main strut structure. The size of the cable tension and its distribution on the strut can be changed by changing the length of the main strut, so as to efficiently adjust the stress and better compensate for the stress loss of the steel strand. The combination of inner steel pipe and concrete can not only reduce the amount of concrete and reduce the deadweight, but also effectively increase the stiffness of the structure itself, coordinate the front and rear forces, and resist the deformation of the structure. Prefabricated components are used to make on-site construction simple and economical, and can be recycled, energy-saving and environmentally friendly, and reduce construction costs.

[0004] However, the applicant believes that the device has the following problems when in use. Due to the different shapes and sizes of foundation pits, it is necessary to frequently replace inclined beams and straight beams of different lengths to support the surrounding beams between the foundation pit walls for foundation pits of different sizes. This not only increases the construction cost, but also affects the construction efficiency. When the foundation pit is larger, the required support length of the fish belly beam also increases accordingly, thereby reducing the support effect.

[0005] To this end, we provide a fish belly beam concrete support structure for special-shaped foundation pits. Utility Model Content

[0006] The main purpose of the utility model is to provide a fish belly beam concrete support structure for special-shaped foundation pits, which can effectively solve the problem proposed in the background technology that for foundation pits of different sizes, inclined beams and straight beams of different lengths need to be frequently replaced to support the surrounding beams between the foundation pit walls.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A fishbelly beam concrete support structure for a special-shaped foundation pit, comprising a straight-belly beam and a connecting sleeve, wherein the connecting sleeve is embedded on the straight-belly beam, connecting shafts are embedded on both sides of the connecting sleeve, a mounting groove is provided in the middle of the connecting sleeve, fixing bolts are provided at both ends of the connecting sleeve, limit blocks are provided at both ends of the connecting sleeve, and the limit blocks are embedded and installed with the connecting sleeve through fixing bolts, a support rod is provided on one side of the connecting sleeve, connecting heads are fixedly installed at both ends of the support rod, and the support rod is embedded and installed with the connecting shaft through the connecting head, a support plate is provided at one end of the support rod, and the support plate is embedded and installed with the support rod through the connecting head.

[0009] In the above scheme, preferably, both left and right ends of the connecting sleeve are provided with oblique belly beams, and both sides of the oblique belly beams are provided with fixing holes, the fixing holes are embedded with fixing bolts, and the oblique belly beams are embedded and docked with limit blocks through fixing bolts.

[0010] In the above scheme, preferably, fixing holes are penetrated through the inner sides of the support rod and the support plate, a telescopic plug is embedded in the fixing hole on the inner side of the support rod, and a fixing anchor bolt is embedded in the fixing hole on the inner side of the support plate.

[0011] In the above scheme, preferably, a fixing groove is provided on one side of the straight web beam, and fixing holes are equidistantly provided on the straight web beam, and a surrounding beam is fixedly installed on the other side of the straight web beam, and the surrounding beam is anchored to the foundation pit wall.

[0012] In the above scheme, preferably, triangular connectors are fixedly installed on both sides of the surrounding beam, anchors are provided on the inner sides of the triangular connectors, and the anchors are fixedly connected to the surrounding beam.

[0013] In the above scheme, preferably, a steel strand is embedded and installed on the inner side of the fixing groove, and the steel strand is embedded and wound with the anchor.

[0014] In the above scheme, preferably, a bridge is installed on the upper pipe of the straight web beam, and the straight web beam, the oblique web beam and the bridge are all arranged in an I-shape.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the fish belly beam concrete support structure of the special-shaped foundation pit is equipped with a connecting sleeve, a support plate and a support rod, and the support rod is used to adjust the angle and expand and contract the support distance on the connecting sleeve, and is fixed to the side wall of the foundation pit through the support plate, thereby improving the vertical support strength and stability through the support rod, and secondly, the telescopic distance is adjusted and fixed on the straight web beam through the connecting sleeve, thereby improving the lateral support distance and support strength of the oblique web beam to the surrounding beam, and at the same time, the fixing bolts are passed through the fixing holes installed on the oblique web beam, and are clamped in the I-shaped groove of the oblique web beam through the limit block, thereby facilitating the installation and use of the oblique web beam and the connecting sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the local structure of the support rod of the utility model.

[0019] Figure 3 It is a schematic diagram of the split structure of the inclined web beam and the connecting sleeve of the utility model.

[0020] Figure 4 It is a schematic diagram of the local structure of the connecting sleeve of the utility model.

[0021] Figure 1-Figure 4 In the middle: 1. surrounding beam; 2. straight web beam; 201. fixing groove; 3. oblique web beam; 4. connecting sleeve; 401. connecting shaft; 402. installation groove; 403. limit block; 404. fixing bolt; 5. bridge frame; 6. steel strand; 7. triangular connector; 8. support rod; 801. connector; 802. support plate; 9. anchor; 10. fixing hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 4 As shown, in this embodiment, a fish belly beam concrete support structure of a special-shaped foundation pit includes a straight belly beam 2 and a connecting sleeve 4, the connecting sleeve 4 is embedded on the straight belly beam 2, both sides of the connecting sleeve 4 are embedded with connecting shafts 401, the middle of the connecting sleeve 4 is provided with a mounting groove 402, both ends of the connecting sleeve 4 are provided with fixing bolts 404, both ends of the connecting sleeve 4 are provided with limit blocks 403, and the limit blocks 403 are embedded and installed with the connecting sleeve 4 through the fixing bolts 404, one side of the connecting sleeve 4 is provided with a support rod 8, both ends of the support rod 8 are fixedly installed with connecting heads 801, and the support rod 8 is embedded and installed with the connecting shaft 401 through the connecting head 801, one end of the support rod 8 is provided with a support plate 802, and the support plate 802 is embedded and installed with the support rod 8 through the connecting head 801;

[0024] Specifically, through this arrangement, the support rod 8 is installed and used through the connecting shaft 401, and the straight web beam 2 is embedded and fixedly installed through the installation groove 402. When in use, the angle is adjusted and the support distance is extended and retracted on the connecting sleeve 4 through the support rod 8, and it is fixed to the side wall of the foundation pit through the support plate 802, and then the straight web beam 2, the diagonal web beam 3 and the connecting sleeve 4 are supported by the support rod 8 to improve the vertical support strength and stability. Secondly, the telescopic distance is adjusted and fixed on the straight web beam 2 through the connecting sleeve 4. At this time, the support and fixing distance of the diagonal web beam 3 on the surrounding beam 1 will also change, thereby improving the lateral support distance and support strength of the diagonal web beam 3 to the surrounding beam 1.

[0025] like Figure 1-Figure 4 As shown, in this embodiment, the left and right ends of the connecting sleeve 4 are provided with oblique belly beams 3, and both sides of the oblique belly beams 3 are provided with fixing holes 10, the fixing holes 10 are embedded with the fixing bolts 404, and the oblique belly beams 3 are embedded and docked with the limit blocks 403 through the fixing bolts 404, the inner sides of the support rods 8 and the support plates 802 are penetrated with fixing holes 10, the fixing holes 10 on the inner side of the support rods 8 are embedded with telescopic plugs, and the fixing holes 10 on the inner side of the support plates 802 are embedded with fixing anchor bolts, and the upper pipes of the straight belly beams 2 are installed with bridges 5, and the straight belly beams 2, the oblique belly beams 3 and the bridges 5 are all arranged in an I-shape;

[0026] Specifically, through this arrangement, when in use, the fixing bolt 404 is passed through the fixing hole 10 installed on the diagonal web beam 3, and is clamped in the I-shaped groove of the diagonal web beam 3 through the limit block 403, so that the diagonal web beam 3 and the connecting sleeve 4 are installed and used, and the connecting head 801 is used to facilitate the active connection between the support rod 8 and the connecting sleeve 4 and the support plate 802. Secondly, the fixing hole 10 and the telescopic plug on the inner side of the support rod 8 are used to facilitate the telescopic use of the support rod 8. At the same time, the fixing hole 10 and the fixing anchor bolt on the inner side of the support plate 802 are used to facilitate the fixed installation of the support plate 802 and the side wall of the foundation pit.

[0027] like Figure 1-Figure 2 As shown, in this embodiment, a fixing groove 201 is provided on one side of the straight web beam 2, and fixing holes 10 are equidistantly provided on the straight web beam 2, a surrounding beam 1 is fixedly installed on the other side of the straight web beam 2, and the surrounding beam 1 is anchored to the foundation pit wall, triangular connectors 7 are fixedly installed on both sides of the surrounding beam 1, an anchor 9 is provided on the inner side of the triangular connector 7, and the anchor 9 is fixedly connected to the surrounding beam 1, a steel strand 6 is embedded and installed on the inner side of the fixing groove 201, and the steel strand 6 is embedded and wound with the anchor 9;

[0028] Specifically, through this arrangement, the surrounding beam 1 is fixedly installed on the side wall of the foundation pit, and the straight web beam 2 is fixedly installed and connected to the surrounding beam 1 for installation and use. When in use, the steel strands 6 and the anchors 9 on the left and right sides of the surrounding beam 1 are installed in a limited manner through the fixing grooves 201, and the bearing capacity of the fish belly beam is increased through the steel strands 6. Secondly, the overall stiffness and stability of the fish belly beam are improved through the triangular connector 7.

[0029] It should be noted that when the utility model is used as a fish belly beam concrete support structure of a special-shaped foundation pit, the surrounding beam 1 is first fixedly installed on the side wall of the foundation pit, and the straight web beam 2 is fixedly installed and connected to the surrounding beam 1 for installation and use. When in use, the inclined web beam 3 is installed and used with the connecting sleeve 4, and the supporting rod 8 is telescopically used through the fixing hole 10 and the telescopic plug on the inner side of the support plate 8. At the same time, the supporting plate 802 is fixedly installed on the side wall of the foundation pit through the fixing hole 10 and the fixing anchor bolt on the inner side of the support plate 802. The angle is adjusted and the support distance is telescoped on the connecting sleeve 4 by the support rod 8, and the support plate 802 is fixed to the side wall of the foundation pit by the support plate 802, thereby improving the vertical support strength and stability through the support rod 8. Secondly, the telescopic distance is adjusted and fixed on the straight web beam 2 by the connecting sleeve 4, thereby improving the lateral support distance and support strength of the inclined web beam 3 on the surrounding beam 1.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. The utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A fish-belly beam concrete support structure for a special-shaped foundation pit, comprising a straight-belly beam (2) and a connecting sleeve (4), wherein the connecting sleeve (4) is embedded on the straight-belly beam (2), and is characterized in that: A connecting shaft (401) is mounted on both sides of the connecting sleeve (4), a mounting groove (402) is provided in the middle of the connecting sleeve (4), fixing bolts (404) are provided on both ends of the connecting sleeve (4), limiting blocks (403) are provided on both ends of the connecting sleeve (4), and the limiting blocks (403) are mounted and connected to the connecting sleeve (4) through the fixing bolts (404), a support rod (8) is provided on one side of the connecting sleeve (4), connecting heads (801) are fixedly mounted on both ends of the support rod (8), and the support rod (8) is mounted and connected to the connecting shaft (401) through the connecting head (801), and a support plate (802) is provided at one end of the support rod (8), and the support plate (802) is mounted and connected to the support rod (8) through the connecting head (801).

2. The fish belly beam concrete support structure of a special-shaped foundation pit according to claim 1 is characterized in that: The left and right ends of the connecting sleeve (4) are both provided with an oblique web beam (3), and both sides of the oblique web beam (3) are both provided with fixing holes (10), the fixing holes (10) are engaged with fixing bolts (404), and the oblique web beam (3) is engaged and docked with a limit block (403) via the fixing bolts (404).

3. The fish belly beam concrete support structure of a special-shaped foundation pit according to claim 1 is characterized in that: The inner sides of the support rod (8) and the support plate (802) are penetrated by fixing holes (10), the fixing holes (10) on the inner side of the support rod (8) are embedded with telescopic plugs, and the fixing holes (10) on the inner side of the support plate (802) are embedded with fixing anchor bolts.

4. The fish belly beam concrete support structure of a special-shaped foundation pit according to claim 1, characterized in that: A fixing groove (201) is provided on one side of the straight web beam (2), and fixing holes (10) are equidistantly provided on the straight web beam (2). A surrounding beam (1) is fixedly installed on the other side of the straight web beam (2), and the surrounding beam (1) is anchored to the foundation pit wall.

5. The fish belly beam concrete support structure of a special-shaped foundation pit according to claim 4, characterized in that: Triangular connectors (7) are fixedly installed on both sides of the surrounding beam (1), and anchors (9) are provided inside the triangular connectors (7), and the anchors (9) are fixedly connected to the surrounding beam (1).

6. The fish belly beam concrete support structure of a special-shaped foundation pit according to claim 4, characterized in that: A steel strand (6) is embedded and installed inside the fixing groove (201), and the steel strand (6) and the anchor (9) are embedded and wound together.

7. The fish belly beam concrete support structure of a special-shaped foundation pit according to claim 1, characterized in that: A bridge frame (5) is installed on the pipe above the straight web beam (2), and the straight web beam (2), the oblique web beam (3) and the bridge frame (5) are all arranged in an I-shape.

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