Welding-free rapid assembly angle self-adaptive inclined strut system and construction method thereof

Abstract

The invention provides a welding-free rapid assembly angle self-adaption inclined strut system. The inclined strut system is characterized in that a pair of brackets are welded to steel enclosing purlins on the two sides of the corner of a foundation pit correspondingly; the inclined supporting rod comprises a first section and a second section connected with one end of the first section, and the other end of the second section is hinged to a bracket through a ball head. The servo system comprises a hydraulic cylinder, one end of the hydraulic cylinder is connected with the other end of the first section, and the other end of the hydraulic cylinder is hinged to the other bracket through a ball head. One end of the inclined supporting rod is in spherical hinge connection with the bracket, so that the inclined supporting rod and the bracket are quickly mounted, the connection is reliable, and the angle is self-adaptive; the other end of the inclined supporting rod is hinged to the other bracket ball head through a servo system, fine adjustment of the connecting position is achieved, the position distance between the inclined supporting rod and the surrounding purlin does not need to be repeatedly corrected, and the effectiveness and reliability of the inclined supporting system are effectively improved; and meanwhile, stress self-adaption is achieved in the supporting process, the problem that construction procedures of the enclosing purlins and the inclined struts are mutually restricted is effectively solved, the construction progress is prevented from being affected, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit support, and in particular to a welding-free, fast-assembly angle-adaptive diagonal bracing system and a construction method thereof. Background Art

[0002] The deep foundation pit engineering support system can retain soil, intercept water, ensure the stability of the foundation pit, bear the necessary construction loads, and ensure the smooth construction of underground structure projects.

[0003] At present, the construction method of steel diagonal braces and purlins is commonly used. Among them, the corner support of the foundation pit usually adopts the method of welding the diagonal braces to the steel purlins or the steel plate embedded parts of the concrete purlins through the corbels. However, there are construction errors in the welding of the corbels or the positions of the embedded parts, which may cause the installation position of the diagonal brace corbels to be offset and the angle of the diagonal brace to be deflected, making it impossible to install smoothly. Subsequent re-welding may easily make the purlins brittle and damage the purlins. At the same time, the use of traditional steel diagonal braces has complicated processes and long waiting times between processes.

[0004] Therefore, how to improve the effectiveness and reliability of the steel support system while reducing the construction time is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide a welding-free, quick-assembly angle-adaptive diagonal bracing system and a construction method thereof, which can improve the effectiveness and reliability of the steel support system and reduce the construction time.

[0006] In order to solve the above technical problems, the present invention provides a welding-free fast assembly angle-adaptive diagonal brace system, and the welding-free fast assembly angle-adaptive diagonal brace system comprises:

[0007] A pair of corbels are welded to the steel purlins on both sides of the corners of the foundation pit;

[0008] The diagonal brace comprises: a first section and a second section connected to one end thereof, wherein the other end of the second section is hinged to a ball head between a corbel;

[0009] The servo system comprises: a hydraulic cylinder, one end of which is connected to the other end of the first section, and the other end is hinged to the ball head between the other bull leg.

[0010] Optionally, in the welding-free quick-assembly angle-adaptive bracing system, each bracket includes: a ball seat.

[0011] Optionally, in the welding-free quick assembly angle-adaptive diagonal brace system, the ball seat includes: a connecting seat and a cover plate.

[0012] Optionally, in the welding-free quick assembly angle adaptive diagonal brace system, both ends of the first section are connected to the second section and the hydraulic cylinder through flange joints and bolts.

[0013] Optionally, in the welding-free quick assembly angle-adaptive brace system, one end of the second section is connected to one end of the first section via a flange joint with bolts, and the other end is connected to the ball head.

[0014] Optionally, in the welding-free quick assembly angle-adaptive diagonal bracing system, the first section of the diagonal bracing rod is a steel pipe.

[0015] Optionally, in the welding-free quick assembly angle-adaptive diagonal bracing system, the second section of the diagonal bracing rod is a steel pipe.

[0016] The present invention also provides a construction method for a welding-free, fast-assembly angle-adaptive diagonal brace system, the construction method for a welding-free, fast-assembly angle-adaptive diagonal brace system comprising:

[0017] Weld a pair of corbels horizontally to both sides of the corners of the steel purlin, and install the steel purlin at the corners of the foundation pit;

[0018] After the diagonal brace is installed and connected with the servo system, it is hoisted near the corbel. First, the second section of the diagonal brace is hinged to a corbel ball head, and then the servo system is adjusted so that the other end of the first section of the diagonal brace is hinged to another corbel ball head through the servo system.

[0019] Optionally, the construction method of the welding-free rapid assembly angle-adaptive bracing system further includes:

[0020] A pair of corbels are welded or embedded at predetermined intervals on both sides of the corners of the steel purlin.

[0021] In the welding-free fast assembly angle-adaptive diagonal brace system and its construction method provided by the present invention, the welding-free fast assembly angle-adaptive diagonal brace system includes: a pair of corbels, which are respectively welded to the steel purlins on both sides of the corner of the foundation pit; the diagonal brace rod includes: a first section and a second section connected to one end thereof, and the other end of the second section is hinged with a ball head between a corbel; the servo system includes: a hydraulic cylinder, one end of which is connected to the other end of the first section, and the other end is hinged with a ball head between another corbel. By connecting one end of the diagonal brace rod with the corbel ball hinge, the diagonal brace rod and the corbel can be quickly installed, reliably connected, and the angle is adaptive; the other end of the diagonal brace rod is hinged with the ball head of another corbel through the servo system, and the connection position is fine-tuned, without repeatedly correcting the position spacing between the diagonal brace and the purlin, effectively improving the effectiveness and reliability of the diagonal brace system; at the same time, stress adaptation is achieved during the support process, effectively solving the problem of mutual restriction between the construction procedures of the purlin and the diagonal brace, avoiding affecting the construction progress, and improving the construction efficiency.

[0022] On the other hand, the diagonal braces are assembled by connecting steel pipes. They have a simple structure, uniform force, simple assembly, and convenient transportation. They can be used in different foundation pit retaining projects to reduce costs and increase efficiency.

[0023] On the other hand, the diagonal bracing system of the present invention can be applied to different foundation pit support forms such as concrete purlins and steel purlins, and can also be applied to steel support systems of irregular ground walls. It has a wide range of application scenarios and reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of a welding-free rapid assembly angle-adaptive diagonal brace system in one embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the enlarged local structure of the connection between the corbel and the second section of the diagonal brace in an embodiment of the present invention.

[0027] In the figure:

[0028] 1- diagonal brace; 11- second section; 111- ball head; 12- first section;

[0029] 2-Servo system;

[0030] 3-bracket; 31-ball seat; 311-connecting seat; 312-cover plate; 313-bolt;

[0031] 4-Steel purlin. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the welding-free quick assembly angle adaptive bracing system and its construction method proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0034] In the description of the invention, it is necessary to understand that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to the specific circumstances.

[0037] Please refer to Figure 1 The welding-free quick assembly angle adaptive diagonal bracing system includes: a pair of corbels 3, which are respectively welded to the steel purlins 4 on both sides of the corner of the foundation pit; a diagonal bracing rod 1, including: a first section 12 and a second section 11 connected to one end thereof, and the other end of the second section 11 is articulated with a ball head between a corbel 3; a servo system 2, including: a hydraulic cylinder, one end of which is connected to the other end of the first section, and the other end is articulated with a ball head between another corbel 3. The spherical articulation is achieved through the contact between the ball head and the ball seat. Due to the spherical symmetry of its structure, the ball head can rotate and tilt freely inside the ball seat, thereby satisfying the angle adaptive connection between the corbel and the second section 11 and the hydraulic cylinder.

[0038] The hydraulic cylinder serves as the actuator of the servo system 2, one end of which is a flange joint, and the extension rod of the hydraulic cylinder is in the form of a ball head. Through the extension and retraction of the hydraulic cylinder, the length of the diagonal support rod 1 is adjusted during the lifting process, so that its end can be installed and connected with the corbel 3 on the steel purlin 4, and active deformation control of the ground wall is realized during the construction process.

[0039] Among them, Figure 2As shown, each bracket 3 includes a ball seat 31, and the ball seat 31 includes a connecting seat 311 and a cover plate 312. The connecting seat 311 provides a space for the ball head at the end of the second section 11 of the diagonal brace 1 or the ball head at the end of the servo system 2 to rotate arbitrarily, and the cover plate 312 is installed on the connecting seat 311 by bolts 313 to prevent the ball head at the end of the second section 11 of the diagonal brace 1 or the ball head at the end of the servo system 2 from detaching from the ball seat 31.

[0040] Further, such as Figure 1 As shown, the two ends of the first section 12 are connected to the second section 11 and the hydraulic cylinder through flange joints and bolts; Figure 2 As shown, one end of the second section 11 is connected to one end of the first section 12 through a flange joint with bolts 313, and the other end is connected to the ball head 111. Preferably, the first section 12 of the diagonal brace 1 is a steel pipe, and the second section 11 is a steel pipe. It can be understood that by adjusting the number of first sections 12 in a diagonal brace 1 or adopting the length specification of the first section 12, different diagonal brace lengths can be used to cope with different working conditions in different projects.

[0041] Accordingly, this embodiment also provides a construction method for a welding-free, fast-assembly angle-adaptive bracing system. Figure 1 and Figure 2 The construction method of the welding-free rapid assembly angle-adaptive diagonal brace system described in this embodiment is described in detail.

[0042] First, perform step S1, horizontally weld a pair of corbels 3 to both sides of the corners of the steel purlin 4, and install the steel purlin 4 at the corners of the foundation pit;

[0043] Specifically, in this embodiment, only two diagonal bracing systems are used as an illustration. In fact, multiple diagonal bracing systems will be arranged at the corners of each steel purlin 4. Here, a pair of corbels 3 need to be welded or embedded at predetermined intervals on both sides of the corners of the steel purlin 4, and the remaining components of the corresponding diagonal bracing system need to be adaptively matched. Only the length of the diagonal bracing rods used is different, and the structures are the same, so no excessive elaboration will be made here.

[0044] Next, execute step S2, after the diagonal brace 1 is installed and connected with the servo system 2, it is hoisted near the corbel 3, and the second section 11 of the diagonal brace 1 is first hinged with the ball head of a corbel 3, and then the servo system 2 is adjusted so that the other end of the first section 12 of the diagonal brace 1 is hinged with the ball head of another corbel 3 through the servo system 2, that is, the servo system 2 matches the entire diagonal brace 1 to the installation position of the corbel 3 to complete the assembly; in the subsequent construction process, manual operation is removed, and the servo system 2 can be autonomously fine-tuned at any time according to the stress conditions, so that the entire diagonal brace system can be adaptive, forming a stable and reliable diagonal brace system.

[0045] After the foundation pit construction is completed, the disassembly process of the diagonal bracing system is as follows: first, the diagonal bracing rod 1 is lifted off, and the first section 12 and the second section 11 of the diagonal bracing rod 1 and the servo system 2 are disassembled, and they are collected and transported to the next project for recycling. Here, the corbel 3 on the steel purlin 4 is not disassembled.

[0046] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0047] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0048] The present invention has the following advantages:

[0049] 1) By connecting one end of the diagonal brace with the corbel ball joint, the diagonal brace and the corbel can be quickly installed, reliably connected, and the angle can be self-adaptive.

[0050] 2) The other end of the diagonal brace is hinged to the other corbel ball head through the servo system, and the connection position can be fine-tuned, without repeatedly correcting the position spacing between the diagonal brace and the purlin, effectively improving the effectiveness and reliability of the diagonal brace system; at the same time, stress adaptation is achieved during the support process, effectively solving the problem of mutual constraints between the construction procedures of the purlin and the diagonal brace, avoiding affecting the construction progress and improving construction efficiency.

[0051] 3) The diagonal braces are assembled by connecting steel pipes. They have a simple structure, uniform force, simple assembly, and convenient transportation. They can be used in different foundation pit retaining projects to reduce costs and increase efficiency.

[0052] 4) The diagonal bracing system of the present invention can be applied to different foundation pit support forms such as concrete purlins and steel purlins, and can also be applied to steel support systems of irregular ground walls. It has a wide range of application scenarios and reduces construction costs.

[0053] 5) The diagonal bracing system of the present invention does not require welding during the construction and installation process, and has strong adaptability; it also does not require open flame cutting during dismantling, thus reducing the installation and dismantling construction period.

[0054] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A welding-free, quick-assembly angle-adaptive bracing system, characterized in that: include: A pair of corbels (3) are respectively welded to the steel purlins (4) on both sides of the corner of the foundation pit; The diagonal brace (1) comprises: a first section (12) and a second section (11) connected to one end thereof, wherein the other end of the second section (11) is hingedly connected to a corbel (3) by a ball head; The servo system (2) comprises a hydraulic cylinder, one end of which is connected to the other end of the first section (12), and the other end of which is articulated with a ball head between another bull leg (3).

2. The welding-free rapid assembly angle adaptive bracing system according to claim 1 is characterized in that: Each of the brackets (3) comprises a ball seat (31).

3. The welding-free rapid assembly angle adaptive bracing system according to claim 2 is characterized in that: The ball seat (31) comprises: a connecting seat (311) and a cover plate (312).

4. The welding-free rapid assembly angle adaptive bracing system according to claim 1 is characterized in that: The two ends of the first section (12) are respectively connected to the second section (11) and the hydraulic cylinder through flange joints and bolts.

5. The welding-free rapid assembly angle adaptive bracing system according to any one of claims 1 to 4, characterized in that: One end of the second section (11) is connected to one end of the first section (12) via a flange joint and bolts (313), and the other end is connected to the ball head (111).

6. The welding-free rapid assembly angle adaptive bracing system according to any one of claims 1 to 4, characterized in that: The first section (12) of the diagonal brace (1) is a steel pipe.

7. The welding-free rapid assembly angle adaptive bracing system according to any one of claims 1 to 4, characterized in that: The second section (11) of the diagonal brace (1) is a steel pipe.

8. A construction method for a welding-free, rapid assembly of an angle-adaptive bracing system, characterized in that: include: A pair of corbels (3) are horizontally welded to both sides of the corners of the steel purlin (4), and the steel purlin (4) is installed at the corners of the foundation pit; After the diagonal support rod (1) and the servo system (2) are installed and connected, they are hoisted near the corbels (3), and the second section (11) of the diagonal support rod (1) is first hinged to the ball head of one corbel (3), and then the servo system (2) is adjusted so that the other end of the first section (12) of the diagonal support rod (1) is hinged to the ball head of another corbel (3) through the servo system (2).

9. The construction method of the welding-free rapid assembly angle adaptive diagonal bracing system according to claim 8, characterized in that: Also includes: A pair of corbels (3) are welded or pre-buried at predetermined intervals on both sides of the corners of the steel perimeter purlin (4).

Images