Combined detachable waist rail
By designing a combined detachable waist beam, using the combined structure of channel steel plates and webs, the number of channels steel plates is adjusted according to different construction conditions, the problems of material waste and support failure when the waist beam increases strength in the prior art are solved, and efficient load-bearing capacity and reusable effect are achieved.
Patent Information
- Application Number
- CN202421193140.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-29
AI Technical Summary
When existing waist beams increase strength to resist bending moment, they will cause waste of material and occupy the internal space of the foundation pit wall by increasing the number of anchors, which will lead to support failure in severe cases.
A combined detachable waist beam is designed. By setting channels and webs on the foundation pit wall, different numbers of channels and anchors are used to ensure the bearing capacity of the waist beam according to different areas and soil layer pressures, and an assembleable and disassembled structure is used to improve anchoring performance.
It effectively avoids waste of materials and the use of internal space of foundation pit walls, improves the bearing capacity and anchoring performance of waist beams, and can be reused, reducing construction costs and resource waste.
Smart Images
Figure CN222614232U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a combined detachable waist beam. Background Art
[0002] The waist beam is used on the retaining wall. A horizontal beam is set at the middle height of the retaining wall. One end of the diagonal brace supporting the retaining wall can be fixed on the waist beam. In this way, the support of the diagonal brace to the retaining wall can be changed from a point to a line, thereby improving the stability of the retaining wall.
[0003] In the prior art, the waist beam is mostly a simple anchor rod anchoring structure, and the various parts are subjected to uneven force. The anchor rod connection part is subjected to a large shear force, and the pile and beam connection part is subjected to a large bending moment. In order to increase the strength to resist the large bending moment, support is usually carried out by increasing the number of anchor rods. However, this not only causes a waste of materials, but also occupies the internal cotton knots of the foundation pit slope, which may cause support failure in severe cases. In addition, after the foundation pit construction is completed, a large amount of steel materials are permanently buried underground, resulting in a waste of resources and environmental pollution. When there is a problem with the support, the damage to the waist beam cannot be repaired. Utility Model Content
[0004] The utility model provides a combined detachable waist beam, which is used to solve the problem that the waist beam in the prior art increases the strength to resist a large bending moment by increasing the number of anchor rods for support, which not only causes a waste of materials, but also occupies the internal area of the foundation pit slope, which may lead to the defect of support failure in severe cases. The utility model realizes the construction of foundation pits of different areas and different soil layer pressures, and adopts different numbers of trough steels to ensure the overall bearing capacity.
[0005] The utility model provides a combined detachable waist beam for supporting a foundation pit wall, wherein a first anchor hole and at least one first mounting hole are arranged on the foundation pit wall, comprising:
[0006] At least two channel steel plates, distributed up and down;
[0007] A web is provided on the side of the channel steel plate facing the foundation pit wall; a second anchor hole and at least one second mounting hole are provided on the web; the second anchor hole and the first anchor hole are provided correspondingly, and the first mounting hole and the second mounting hole are provided correspondingly;
[0008] The second anchor rod hole and the first anchor rod hole are used to penetrate the anchor rod; the second mounting hole and the first mounting hole are used to penetrate the fastener.
[0009] According to a combined detachable waist beam provided by the utility model, the channel steel plates include three, and the second mounting holes are arranged on the topmost and bottommost channel steel plates, and the second anchor rod holes are arranged on the middle channel steel plate.
[0010] According to a combined detachable waist beam provided by the utility model, a heat-insulating layer is arranged inside the first mounting hole at one end facing the web.
[0011] According to the combined detachable waist beam provided by the utility model, the fasteners include steel nails.
[0012] According to the combined detachable waist beam provided by the utility model, the supporting strength of the anchor rod is greater than that of the steel nail.
[0013] According to the combined detachable waist beam provided by the utility model, the channel steel plate is a channel steel with a uniform cross-section.
[0014] According to a combined detachable waist beam provided by the utility model, a reinforcing rib is arranged on the opening side of the channel steel plate.
[0015] According to a combined detachable waist beam provided by the utility model, the reinforcing ribs include a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at equal intervals.
[0016] According to a combined detachable waist beam provided by the utility model, the anchor rod comprises:
[0017] An anchor rod body, passing through the second anchor rod hole and the first anchor rod hole;
[0018] An anchor head is integrally connected with the anchor rod body, and the anchor head is located on a side of the channel steel plate facing away from the web.
[0019] According to a combined detachable waist beam provided by the utility model, the web plate, the steel plate and the wooden board are stacked.
[0020] The combined detachable waist beam provided by the utility model is provided with a first anchor hole and at least one first mounting hole on the foundation pit wall, comprises at least two channel steel plates, a web plate is provided on the side of the channel steel plate facing the foundation pit wall, a second anchor hole and at least one second mounting hole are opened on the web plate, the second anchor hole and the first anchor hole are provided correspondingly, the first mounting hole and the second mounting hole are provided correspondingly, the second anchor hole and the first anchor hole are used for the anchor to pass through, and the second mounting hole and the first mounting hole are used for the fastener to pass through. For the construction of foundation pits with different areas and different soil layer pressures, different numbers of channel steel plates can be used to correspondingly ensure the overall bearing capacity of the waist beam, and it is beneficial to fully utilize the area of the foundation pit wall and avoid unnecessary waste of materials, and it has high versatility. Moreover, an assembleable and detachable structure is adopted between the waist beam and the anchor rod, which effectively improves the anchoring performance, and the waist beam can be repeatedly used, which is beneficial to reduce construction costs and save materials, and also provides favorable conditions for reuse after disassembly and repair. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 It is a cross-sectional view of a combined detachable waist beam provided by the utility model.
[0023] Figure 2 This is a schematic diagram of the structure of the combined detachable waist beam provided by the utility model
[0024] Reference numerals:
[0025] 1. channel steel plate; 2. web plate; 3. insulation layer; 4. anchor rod; 5. fastener; 6. reinforcing rib; 41. anchor rod body; 42. anchor head; 21. steel plate; 22. wooden board; 10. first anchor rod hole; 20. first mounting hole. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] Combine the following Figure 1-Figure 2 The utility model describes a combined detachable waist beam.
[0028] like Figure 1 As shown, an embodiment of the utility model provides a combined detachable waist beam for supporting a foundation pit wall, on which a first anchor hole 10 and at least one first mounting hole 20 are provided, and the beam includes at least two channel steel plates 1 and a web plate 2.
[0029] At least two channel steel plates 1 are distributed up and down; the web 2 is arranged on the side of the channel steel plate 1 facing the foundation pit wall; and the web 2 is provided with a second anchor hole and at least one second mounting hole; and the second anchor hole and the first anchor hole 10 are arranged correspondingly, and the first mounting hole 20 and the second mounting hole are arranged correspondingly; the second anchor hole and the first anchor hole 10 are used to penetrate the anchor 4; the second mounting hole and the first mounting hole 20 are used to penetrate the fastener 5, that is, the waist beam and the foundation pit wall are connected and fixed by the anchor 4 and the fastener 5 to achieve support. The channel steel plate 1 mainly bears the horizontal transverse shear force, and the web 2 is located in the bending zone of the structure and mainly bears the bending moment.
[0030] The combined detachable waist beam provided by the utility model can adopt different numbers of channel steel plates 1 for the construction of foundation pits of different areas and different soil layer pressures to ensure the overall bearing capacity of the waist beam accordingly, and is conducive to making full use of the wall area of the foundation pit and avoiding unnecessary waste of materials, and has high versatility.
[0031] Moreover, the waist beam and the anchor rod 4 are of an assembleable and disassembleable structure, which effectively improves the anchoring performance, and the waist beam can be used repeatedly, which is beneficial to reducing construction costs and saving materials.
[0032] In addition, while improving the bearing capacity of the waist beam, the external pressure on the anchor rod 4 can be reduced accordingly, protecting the waist beam from deformation due to temperature, and also helping to protect the integrity of the soil around the construction site.
[0033] Finally, the modular structure of the waist beam also provides favorable conditions for reuse after disassembly and repair.
[0034] In a feasible embodiment of the utility model, the channel steel plates include three, and the topmost and bottommost channel steel plates 1 are connected to the foundation pit wall through fasteners 5, and the middle channel steel plates 1 are connected to the foundation pit wall through anchor rods 4. The middle channel steel plates 1 bear a larger bearing capacity, and the topmost and bottommost channel steel plates 1 bear auxiliary bearing capacity.
[0035] The installation process is to drill the first anchor hole 10 and the first mounting hole 20 on the foundation pit wall. Then, the channel steel plate 1 and the web plate 2 are combined into a waist beam structure, and the waist beam is placed at an appropriate position on the foundation pit wall. Next, the anchor rod 4 is inserted into the first anchor hole 10 and the second anchor hole, and the anchor rod 4 is fixed using appropriate tools (such as anchoring agents). Finally, fasteners 5, such as bolts or pins, are inserted through the first mounting hole 20 and the second mounting hole to further fix the connection between the waist beam and the foundation pit wall.
[0036] The installed waist beam structure can effectively support the foundation pit wall to prevent the collapse and displacement of soil or rock. Through the joint action of the anchor rod 4 and the fastener 5, the waist beam can withstand the lateral pressure and soil pressure from the foundation pit wall to ensure the safety and stability of the foundation pit.
[0037] Furthermore, in order to effectively deal with the problem that the anchoring component and the hole cannot be aligned due to construction errors, the first anchor hole 10, the first mounting hole 20, the second anchor hole, and the second mounting hole can be set as an elliptical through hole structure.
[0038] In a feasible embodiment of the utility model, a heat-insulating layer 3 is provided inside the first mounting hole at one end facing the web 2. The heat-insulating layer 3 can prevent the transfer of external heat, such as resisting low temperature and high temperature, and reducing energy loss, and can protect the fastener 5 from rusting and achieve an anti-corrosion effect. In addition, before the fastener 5 is installed on the web 2, the heat-insulating layer 3 is pre-filled in the first mounting hole 20, and then the fastener 5 is screwed to tightly combine the heat-insulating layer 3 and the fastener 5 together.
[0039] In a feasible embodiment of the present invention, the fastener 5 includes a steel nail. The fastener 5 can also adopt fasteners of other structural forms. The steel nail provides additional fixing force for the connection between the waist beam and the foundation pit wall. The length and diameter of the steel nail should be selected according to actual needs to ensure the firmness of the connection.
[0040] In a feasible embodiment of the present invention, the support strength of the anchor rod 4 is greater than that of the steel nail. The anchor rod 4 provides the main support for the foundation pit wall, while the steel nail provides auxiliary support for the foundation pit wall. The anchor rod 4 is usually made of high-strength and high-elastic modulus steel or other metal materials, and the material of the anchor rod 4 makes it have higher strength and durability. Although the steel nail is also made of steel, it is usually used for fixing or temporary support in a smaller range, and its strength and durability are relatively low.
[0041] In a feasible embodiment of the utility model, the channel steel plate 1 is a channel steel with a uniform cross-section, and the channel steel with a uniform cross-section has a U-shaped inner groove, and a plurality of vertically arranged reinforcing ribs 6 are arranged in the groove, and the opening side of the channel steel plate 1 is provided with reinforcing ribs 6. The uniform cross-section channel steel is located in the shearing area of the supporting structure, and mainly bears the horizontal transverse shear force. The web 2 is located in the bending area of the structure, and mainly bears the bending moment.
[0042] In a feasible embodiment of the present invention, the reinforcing ribs 6 include a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at equal intervals. The arrangement of the reinforcing ribs 6 can increase the bearing strength of the channel steel plate 1 .
[0043] like Figure 2As shown, in a feasible embodiment of the utility model, the anchor rod 4 includes an anchor rod body 41 and an anchor head 42, the anchor rod body 41 passes through the second anchor rod hole and the first anchor rod hole 10; the anchor head 42 is integrally connected to the anchor rod body 41, and the anchor head 42 is located on the side of the channel steel plate 1 facing away from the web 2, that is, the anchor head 42 is located inside the U-shaped groove of the uniform cross-section channel steel.
[0044] In a feasible embodiment of the present invention, the web 2 includes a steel plate 21 and a wooden board 22, and the steel plate 21 and the wooden board 22 are stacked and arranged. The steel plate 21 and the wooden board 22 can be pre-bonded with latex to facilitate fixing of other components.
[0045] like Figure 1-2 As shown, three rows of combined detachable waist beams are used, and second mounting holes are respectively opened on the webs 2 of the top and bottom layers corresponding to each row of channel steel plates 1, and second anchor holes are opened on the middle webs 2 to be installed and connected with the anchoring device. Among them, the anchor head 42 is located inside the U-shaped groove of the channel steel plate 1.
[0046] During installation, put the insulation layer 3 into the second mounting hole, then hoist the groove steel plate 1, use the anchoring effect of the anchor rod 4 to pass through the anchoring positions of the steel plate 21 and the wooden board 22, and screw the fastener 5 into the second mounting hole. At this time, the insulation layer 3 acts on the fastener 5 to further lock it.
[0047] When the waist beam needs to be disassembled, just follow the above steps in reverse.
[0048] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.
[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A combined detachable waist beam for supporting foundation pit walls, characterized in that: The foundation pit wall is provided with a first anchor hole (10) and at least one first mounting hole (20), comprising: At least two channel steel plates (1), distributed vertically; A web (2) is arranged on the side of the channel steel plate (1) facing the foundation pit wall; a second anchor hole and at least one second mounting hole are provided on the web (2); the second anchor hole and the first anchor hole are arranged correspondingly, and the first mounting hole and the second mounting hole are arranged correspondingly; The second anchor rod hole and the first anchor rod hole (10) are used to penetrate the anchor rod (4); the second mounting hole and the first mounting hole (20) are used to penetrate the fastener (5).
2. The combined detachable waist beam according to claim 1, characterized in that: The channel steel plates (1) include three, and the topmost and bottommost channel steel plates (1) are connected to the foundation pit wall via the fasteners (5), and the middle channel steel plate (1) is connected to the foundation pit wall via the anchor rods (4).
3. The combined detachable waist beam according to claim 1, characterized in that: A heat-insulating layer (3) is provided inside the first mounting hole (20) at one end facing the web (2).
4. The combined detachable waist beam according to claim 1, characterized in that: The fastener (5) comprises a steel nail.
5. The combined detachable waist beam according to claim 4, characterized in that: The supporting strength of the anchor rod (4) is greater than that of the steel nail.
6. The combined detachable waist beam according to claim 1, characterized in that: The channel steel plate (1) is a channel steel with a uniform cross-section.
7. The combined detachable waist beam according to claim 6, characterized in that: A reinforcing rib (6) is provided on the opening side of the channel steel plate (1).
8. The combined detachable waist beam according to claim 7, characterized in that: The reinforcing ribs (6) include a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at equal intervals.
9. The combined detachable waist beam according to claim 1, characterized in that: The anchor rod (4) comprises: An anchor rod body (41) passing through the second anchor rod hole and the first anchor rod hole; The anchor head (42) is integrally connected to the anchor rod body (41), and the anchor head (42) is located on a side of the channel steel plate (1) facing away from the web (2).
10. The combined detachable waist beam according to claim 1, characterized in that: The web (2) comprises a steel plate (21) and a wooden board (22), and the steel plate (21) and the wooden board (22) are arranged in a stacked manner.