Semi-embedded split type steel structure foundation bolt component and mounting method thereof

Abstract

The invention discloses a semi-embedded split type steel structure foundation bolt component and a construction method. The semi-embedded split type steel structure foundation bolt component comprises a direct-buried foundation bolt anchoring part and a rear-buried threaded rod which is arranged on the direct-buried foundation bolt anchoring part and can be adjusted and positioned. The whole directly-buried foundation bolt anchoring part is J-shaped; the upper section of the directly-buried foundation bolt anchoring part is of a hollow structure; an iron sheet plug for temporarily plugging the hollow structure is mounted at the top of the direct-buried foundation bolt anchoring part; a crescent thread cushion block used for adjusting the pre-buried size deviation of the direct-buried foundation bolt anchoring part is arranged between the direct-buried foundation bolt anchoring part and the rear-buried threaded rod. The direct-buried anchor bolt anchoring part is pre-buried when concrete is poured, the adjustable post-buried threaded rod is connected with the direct-buried anchor bolt anchoring part after concrete pouring is completed, and accurate control over the position of the anchor bolt is achieved by adjusting the dimensional deviation through the crescent thread cushion block.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure fixing, and more specifically, relates to a semi-embedded split steel structure anchor bolt component and an installation method thereof. Background Art

[0002] In steel structure construction, foundation engineering mainly refers to the construction of embedded bolts for steel structure foundation. Embedded bolts are the first step in the on-site construction of steel structure projects, and they are also a very critical step. The method of embedding anchor bolts is divided into direct embedding and post-embedding according to the order of the foundation concrete construction. Direct embedding is to position the bolts before pouring concrete, and complete the bolt embedding after the concrete is poured; post-embedding is to reserve holes for embedded bolts when pouring concrete, insert the bolts after the concrete reaches a certain strength, and pour concrete for the second time. Based on construction organization and cost considerations, the steel structure foundation bolts of most projects adopt the direct embedding anchor bolt method (embedded), which is usually completed by civil engineering units. However, civil engineering units cannot effectively control the elevation, axis, etc. of embedded anchor bolts in most cases. When the deviation is large, deviation processing measures need to be taken to meet the installation requirements, which is time-consuming and labor-intensive. The main measures for dealing with anchor bolt deviation are: adjusting the bolt hole position of the column base plate or boring (cutting) holes, setting up a transition steel frame, etc. to adjust the plane position deviation of the anchor bolts, adding steel pads, extending bolts, etc. to adjust the elevation deviation.

[0003] In order to solve the above problems, there is an existing technology that effectively realizes the precise control of the verticality, horizontality and exposed thread consistency of multiple anchor bolts of steel structure columns by setting a new type of support unit in the steel structure column frame; but its process is cumbersome and the components need to be customized separately, which is not worth the cost. There is also an existing technology that drives the steel column foot to rotate in the casting layer through a rotating mechanism after the support plate, the positioning plate and the steel column foot are installed with each other, and at the same time, concrete is poured into the casting layer. When the steel column foot rotates, the impact force of the concrete on it is dispersed to various points on its surrounding side wall, thereby reducing the possibility of bending on one side of the steel column foot caused by the impact force of the concrete. At the same time, the rotation of the steel column foot can make the concrete fit more closely to it; the upper and lower ends of the steel column foot are rotated and penetrated on the positioning plate and the frame respectively, thereby reducing the possibility of horizontal movement of the steel column foot, and then accurately locating the plane position and elevation of the embedded column foot bolts; this construction method is essentially a post-embedded construction, and the installation accuracy of the plane position and elevation of the post-embedded component is further increased by the device, while reducing the impact caused by the reopening of the concrete. However, this method does not overcome the drawbacks of the post-embedded method, which has secondary construction. The process is relatively complicated, the construction takes a long time, and some positioning components are cast into the concrete together with the concrete, which is costly. There is also an existing technology that groups the anchor bolts according to the actual situation on site and customizes the positioning mold separately, which can complete the high-precision pre-embedded construction process of the anchor bolts in the concrete foundation simply, quickly and with high quality; however, the workload in the construction preparation stage is large, the construction technicians' ability requirements are high, and the actual implementation is difficult.

[0004] Therefore, there is an urgent need for an anchor bolt and a construction method thereof that can achieve good anchoring effect after the embedded parts of the steel structure anchor bolts are constructed, accurately position, have strong integrity and high shear strength. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a semi-embedded split steel structure anchor bolt component and an installation method thereof, wherein the anchor bolt is designed to be split, and a direct-embedded part and an adjustable post-embedded connecting part are provided, and a crescent threaded pad for adjusting the embedded size deviation of the direct-embedded anchor bolt anchor is provided between the direct-embedded anchor bolt and the post-embedded threaded rod; the direct-embedded part is embedded during concrete pouring, and the adjustable post-embedded connecting part is connected to the direct-embedded part after the concrete pouring is completed to complete the split anchor bolt embedding construction; through its unique split design, it can not only adapt to the size deviation during construction, but also significantly improve the construction quality, construction efficiency and anchoring effect of the steel structure anchor bolt; it has the advantages of strong integrity and high shear strength of the direct-embedded anchor bolt, and the advantage of accurate positioning of the post-embedded anchor bolt.

[0006] In order to achieve the above-mentioned object, one aspect of the present invention provides a semi-embedded split steel structure anchor bolt component, comprising a directly buried anchor bolt anchor and a rear-buried threaded rod which is adjustable and positioned on the directly buried anchor bolt anchor; wherein,

[0007] The directly buried anchor bolt anchor is in a "J" shape as a whole; the upper section of the directly buried anchor bolt anchor is a hollow structure;

[0008] An iron sheet plug for temporarily plugging the hollow structure is installed on the top of the direct-buried anchor bolt anchor;

[0009] A crescent threaded pad for adjusting the pre-embedded dimension deviation of the directly buried anchor bolt anchor is provided between the directly buried anchor bolt anchor and the post-embedded threaded rod;

[0010] By pre-embedding the direct-buried anchor bolt anchor during concrete pouring, and connecting the adjustable post-embedded threaded rod to the direct-buried anchor bolt anchor after concrete pouring is completed, the split-type anchor bolt embedding construction can be completed, which can adapt to the dimensional deviation in the construction of the direct-buried anchor bolt anchor; the dimensional deviation is adjusted by the crescent threaded pad to achieve precise control of the position of the anchor bolt.

[0011] Furthermore, the directly buried anchor bolt anchor comprises a J-shaped lower anchor and a columnar upper anchor provided on the J-shaped lower anchor; the J-shaped lower anchor and the columnar upper anchor are integrally formed.

[0012] Furthermore, the columnar upper anchor is a hollow sleeve structure with an open top; the inner wall of the hollow sleeve structure of the columnar upper anchor is provided with a first internal thread;

[0013] The top cross-sectional area of ​​the J-shaped lower anchor is smaller than the cross-sectional area of ​​the columnar upper anchor;

[0014] The outer surface of the junction between the J-shaped lower anchor and the columnar upper anchor forms a step.

[0015] Furthermore, the size of the iron sheet plug matches the top of the direct-buried anchor bolt anchor; when in use, it is placed on the top of the direct-buried anchor bolt anchor.

[0016] Furthermore, the crescent thread spacer is prefabricated in multiple models with different thicknesses according to the deviation of the direct-buried part; and the corresponding thickness specification or a combination of different thicknesses is selected according to the deviation of the direct-buried part.

[0017] Furthermore, the side surface of the crescent threaded spacer is in an inverted "L" shape, comprising a crescent clamping plate and an arc-shaped pad vertically arranged at the bottom of the crescent clamping plate;

[0018] The arc-shaped pad and the crescent clamp are integrally formed.

[0019] Furthermore, the inner curved end of the crescent clamp plate is connected to the arc-shaped end of the arc-shaped pad;

[0020] The inner curved end of the crescent clamp plate and the arc-shaped end of the arc-shaped pad plate have the same length and arc;

[0021] The curvature of the inner curved end of the crescent clamp plate and the curved end of the curved pad plate are consistent with the curvature of the inner wall of the hollow sleeve of the direct-buried anchor bolt and the curvature of the outer wall of the rear-buried threaded rod;

[0022] The bottom of the crescent clamp plate is connected to the top of the direct-buried anchor bolt.

[0023] Furthermore, the inner concave arc surface of the arc-shaped pad is provided with a second inner thread matched with the outer wall thread of the rear embedded threaded rod;

[0024] The outer convex arc surface of the arc-shaped pad is provided with an outer thread matched with the first inner thread of the inner wall of the hollow sleeve of the directly buried anchor bolt anchor.

[0025] A second aspect of the present invention provides a construction method for a semi-embedded split steel structure anchor bolt component, comprising the following steps:

[0026] S1: Weld the iron sheet plug to the top of the direct buried anchor bolt anchor;

[0027] S2: Position and install the direct-buried anchor bolt anchor according to the conventional anchor bolt embedding process to ensure that the top of the direct-buried anchor bolt anchor is consistent with the concrete surface elevation;

[0028] S3: pouring foundation concrete on the directly buried anchor bolt anchor;

[0029] S4: After the foundation concrete strength reaches the installation condition of the rear buried threaded rod, the iron sheet plug is removed, and a crescent thread pad is installed on the directly buried anchor bolt anchor according to the size deviation of the directly buried anchor bolt anchor;

[0030] S5: After the crescent threaded pad is installed in place, the rear embedded threaded rod is screwed in between the crescent threaded pad and the directly buried anchor bolt anchor. After the rear embedded threaded rod is adjusted to an appropriate height, the periphery of the rear embedded threaded rod is welded and fixed to complete the installation.

[0031] Further, step S4 includes: reviewing the size deviation of the pre-buried direct-buried anchor bolt anchor to obtain a review result;

[0032] After the concrete strength reaches the bolt installation conditions, remove the iron sheet plug, select the corresponding crescent thread pad according to the review result and insert it into the hollow sleeve of the direct-buried anchor bolt anchor, so that the external thread of the crescent thread pad is aligned with the first internal thread of the direct-buried anchor bolt anchor, and spot weld the upper part of the crescent thread pad to the top of the direct-buried anchor bolt anchor.

[0033] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0034] (1) A semi-embedded split steel structure anchor bolt component and a construction method thereof of the present invention, wherein the anchor bolt is designed to be split, and a direct-embedded part and an adjustable post-embedded connecting part are provided; the direct-embedded part is pre-embedded when pouring concrete, and the adjustable post-embedded connecting part is connected to the direct-embedded part after the concrete pouring is completed to complete the construction of the split anchor bolt embedding, which can adapt to the dimensional deviation in the construction; the position of the anchor bolt can be more accurately controlled by adjusting the crescent thread pad, which can improve the construction quality; the anchor bolt is installed and adjusted after the concrete is poured, which reduces the waiting time in the construction and can improve the construction efficiency; the present invention can make the steel structure anchor bolt embedding part have good anchoring effect and accurate positioning after the construction is completed. The present invention can avoid the force concentration phenomenon caused by the reduction of the contact area between the anchor bolt and the concrete structure, thereby improving the overall strength of the connection; the present invention has the advantages of strong integrity and high shear strength of the direct-embedded anchor bolt, and the advantage of accurate positioning of the post-embedded anchor bolt; it can solve the problem that the direct-embedded method of steel structure anchor bolt construction has good anchoring effect but low installation accuracy.

[0035] (2) The semi-embedded split steel structure anchor bolt component and its construction method of the present invention solve the problem of poor component integrity caused by too many connections when using complex component design through the uncomplicated split design of the anchor bolt, thereby achieving the technical effect of making the component meet the strength and function requirements while being easy to process and produce.

[0036] (3) The semi-embedded split steel structure anchor bolt component and its construction method of the present invention solve the problem that complex construction methods require high technical skills of workers by improving the structure of traditional anchor bolts rather than making major changes in the process, and achieves the technical effect of enabling workers to get started with the operation through simple instructions.

[0037] (4) The semi-embedded split steel structure anchor bolt component and its construction method of the present invention use a technical method of adjusting the bolt installation deviation by selecting different types of crescent threaded gaskets. It has a lower requirement for the embedding accuracy and a larger fault tolerance space, thus solving the problem of high difficulty in adjusting the deviation of traditional embedded parts and producing a technical effect of improving the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the installation structure of a semi-embedded split steel structure anchor bolt component according to an embodiment of the present invention;

[0039] Figure 2 It is a partial enlarged structural schematic diagram of a semi-embedded split steel structure anchor bolt component according to an embodiment of the present invention;

[0040] Figure 3 It is a schematic diagram of the installation of an iron sheet plug of a semi-embedded split steel structure anchor bolt component according to an embodiment of the present invention;

[0041] Figure 4 It is a schematic diagram of a top view of an iron sheet plug of a semi-embedded split steel structure anchor bolt component according to an embodiment of the present invention;

[0042] Figure 5 It is a schematic cross-sectional structure diagram of a crescent thread pad of a semi-embedded split steel structure anchor bolt component according to an embodiment of the present invention;

[0043] Figure 6 It is a schematic diagram of a top view of a crescent thread pad of a semi-embedded split steel structure anchor bolt component according to an embodiment of the present invention;

[0044] Figure 7 This is a schematic diagram of a top view of a semi-embedded split steel structure anchor bolt component after construction is completed according to an embodiment of the present invention;

[0045] Figure 8 The present invention is a flowchart of a construction method for a semi-embedded split steel structure anchor bolt component according to an embodiment of the present invention.

[0046] In all the drawings, the same figure marks represent the same technical features, specifically: 1-direct buried anchor bolt anchor, 11-J-shaped lower anchor, 12-columnar upper anchor, 2-iron sheet plug, 3-crescent threaded pad, 31-crescent clamp, 32-arc pad, 4-rear buried threaded rod. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, when an element is referred to as being "fixed to", "disposed on" or "provided on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element; the terms "installed", "connected", "connected" and "provided with" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0049] In addition, the terms "first", "second", etc. 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, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] like Figure 1-Figure 7As shown, one aspect of the present invention provides a semi-embedded split steel structure anchor bolt component including a directly buried anchor bolt anchor 1 and a post-embedded threaded rod 4 which is adjustable and positioned on the directly buried anchor bolt anchor 1; the directly buried anchor bolt anchor 1 is pre-embedded during concrete pouring to ensure that its position and elevation meet the design requirements; the post-embedded threaded rod 4 is connected to the directly buried anchor bolt anchor 1 after the concrete pouring is completed to complete the construction of the split anchor bolt embedding; the directly buried anchor bolt anchor 1 is in a "J" shape as a whole; the upper section of the directly buried anchor bolt anchor 1 is a hollow structure; an iron sheet plug 2 for temporarily blocking the hollow structure is installed on the top of the directly buried anchor bolt anchor 1; between the directly buried anchor bolt anchor 1 and the post-embedded threaded rod 4 A crescent threaded pad 3 is provided for adjusting the pre-embedded size deviation of the directly buried anchor bolt anchor 1; the present invention structurally designs the anchor bolt in a split type, and sets a directly buried part and an adjustable post-embedded connecting part; the directly buried part is pre-embedded when pouring concrete, and the adjustable post-embedded connecting part is connected with the directly buried part after the concrete pouring is completed to complete the split anchor bolt embedding construction, which can adapt to the size deviation during construction; through the adjustment of the crescent threaded pad 3, the position of the anchor bolt can be more accurately controlled, which can improve the construction quality; the split design allows the installation and adjustment of the anchor bolt after the concrete is poured, which reduces the waiting time during construction and improves the construction efficiency; the present invention has the advantages of strong integrity and high shear strength of the directly buried anchor bolt, and the advantage of accurate positioning of the post-buried anchor bolt.

[0051] Furthermore, if Figure 1-Figure 7 As shown, the direct-buried anchor bolt anchor 1 includes a J-shaped lower anchor 11 and a columnar upper anchor 12 arranged on the J-shaped lower anchor 11; the J-shaped lower anchor 11 and the columnar upper anchor 12 are integrally formed; the columnar upper anchor 12 is a hollow sleeve structure with an open top; the inner wall of the hollow sleeve structure of the columnar upper anchor 12 is provided with a first internal thread; the top cross-sectional area of ​​the J-shaped lower anchor 11 is smaller than the cross-sectional area of ​​the columnar upper anchor 12; a step is formed on the outer surface of the junction between the J-shaped lower anchor 11 and the columnar upper anchor 12; the "J" shape of the direct-buried anchor bolt anchor 1 is designed to help maintain stability in concrete; an iron sheet plug 2 is installed on the top of the direct-buried anchor bolt anchor 1, which is used to temporarily block the hollow structure when pouring concrete to prevent concrete from entering the hollow part.

[0052] Furthermore, if Figure 1-Figure 7As shown, the size of the iron sheet plug 2 matches the top of the direct-buried anchor bolt anchor 1; when in use, it is placed on the top of the direct-buried anchor bolt anchor 1, and the two are connected by spot welding; the iron sheet plug 2 is used to prevent concrete from entering the hollow sleeve structure of the direct-buried anchor bolt anchor 1 when the foundation is poured.

[0053] Furthermore, if Figure 1-Figure 7 As shown, the side of the crescent thread pad 3 is in an inverted "L" shape, including a crescent clamp 31 and an arc pad 32 vertically arranged at the bottom of the crescent clamp 31; the arc pad 32 and the crescent clamp 31 are integrally formed; the crescent thread pad 3 is prefabricated with multiple models of different thicknesses according to the deviation of the direct-buried parts; the corresponding thickness specifications or a combination of different thicknesses are selected according to the deviation of the direct-buried parts; the crescent thread pad 3 is used to connect the direct-buried anchor bolt anchor 1 and the post-buried threaded rod 4, and is used to adjust the dimensional deviation of the direct-buried anchor bolt anchor 1 when it is pre-buried; the design of the crescent thread pad 3 can improve the flexibility and accuracy of the installation of the anchor bolt; when the crescent thread pad 3 is connected to the direct-buried anchor bolt anchor 1, the inverted "L" shape is hooked on the top of the direct-buried anchor bolt anchor 1 and connected by spot welding; the design of the crescent thread pad 3 can improve the flexibility and accuracy of the installation of the anchor bolt.

[0054] Furthermore, if Figure 1-Figure 7 As shown, the inner curved end of the crescent clamp 31 is connected to the arc-shaped end of the arc pad 32; the inner curved end of the crescent clamp 31 and the arc-shaped end of the arc pad 32 have the same length and curvature; the inner curved end of the crescent clamp 31 and the arc-shaped end of the arc pad 32 are consistent with the curvature of the inner wall of the hollow sleeve of the direct-buried anchor bolt anchor 1 and the curvature of the outer wall of the rear-buried threaded rod 4; the inner concave arc surface of the arc pad 32 is provided with a second internal thread that is compatible with the outer wall thread of the rear-buried threaded rod 4; the outer convex arc surface of the arc pad 32 is provided with an external thread that is compatible with the first internal thread of the inner wall of the hollow sleeve of the direct-buried anchor bolt anchor 1; the bottom of the crescent clamp 31 is connected to the top of the direct-buried anchor bolt anchor 1; the crescent thread pad 3 can be flexibly selected or combined according to the specific deviation situation in actual construction, so as to achieve the best adjustment effect and ensure the precise installation of the anchor bolt and the stability of the structure.

[0055] like Figure 8 As shown, a construction method of a semi-embedded split steel structure anchor bolt component of the present invention comprises the following steps:

[0056] S1: Weld the iron sheet plug 2 to the top of the direct buried anchor bolt anchor 1;

[0057] S2: Position and install the direct-buried anchor bolt anchor 1 according to the conventional anchor bolt embedding process to ensure that the top of the direct-buried anchor bolt anchor 1 is consistent with the top surface elevation of the concrete cap;

[0058] S3: pouring foundation concrete on the direct-buried anchor bolt anchor 1; this step is a conventional anchor bolt embedding process. It should be noted that technical measures should be taken to prevent direct impact of the embedded parts from a high place during concrete pouring to avoid excessive deviation of the direct-buried anchor bolt anchor 1;

[0059] S4: After the foundation concrete strength reaches the installation condition of the post-buried threaded rod 4, the iron sheet plug 2 is removed, and a crescent thread pad 3 is installed on the direct-buried anchor bolt anchor 1 according to the size deviation of the direct-buried anchor bolt anchor 1; specifically, the size deviation of the pre-buried direct-buried anchor bolt anchor 1 is reviewed, and after the concrete strength reaches the bolt installation condition, the iron sheet plug 2 is removed, and the corresponding crescent thread pad 3 is selected according to the review result and inserted into the hollow sleeve of the direct-buried anchor bolt anchor 1, and the external thread of the crescent thread pad 3 is aligned with the first internal thread of the direct-buried anchor bolt anchor 1, and the upper part of the crescent thread pad 3 is spot-welded to the top of the direct-buried anchor bolt anchor 1;

[0060] S5: After the crescent threaded pad 3 is installed in place, the rear embedded threaded rod 4 is screwed in between the crescent threaded pad 3 and the directly buried anchor bolt anchor 1. After the rear embedded threaded rod 4 is adjusted to an appropriate height, the periphery of the rear embedded threaded rod 4 is welded and fixed to complete the installation.

[0061] The semi-embedded split steel structure anchor bolt provided by the present invention allows accurate adjustment of the anchor bolt after concrete pouring, thereby improving the installation accuracy and overall stability of the steel structure; in addition, the split design is also convenient for later maintenance and replacement; in actual construction, each step needs to be strictly performed in accordance with technical requirements to ensure construction quality and safety.

[0062] The following is an example of the construction of the steel column foundation of a steel structure project using anchor bolts. 4@Q235 L-type anchor bolts M16*500 are used, with a thread length of 160mm and a hook length of 100mm. According to the requirements of the drawings, the anchor bolts are designed in a split style. 1-The diameter of the direct-buried anchor bolt anchor 1 is 16mm, the internal thread of the installation screw section is 330mm long, the inner diameter of the installation screw section is 20mm, and the outer diameter is 36mm; the iron sheet plug 2 is an iron sheet with a diameter of 36mm and a thickness of 2mm; the side of the crescent thread pad 3 is an inverted "L" shape, with a length of 80mm, and the crescent structure in the top view matches the installation screw section of the direct-buried anchor bolt anchor 1; the rear buried threaded rod 4 has a diameter of 16mm and a length of 320mm.

[0063] According to the semi-embedded split steel structure anchor bolt method of the present invention, the installation of the anchor bolt is achieved, and the specific steps are as follows:

[0064] S1. Install the iron plug 2 and bury the direct-buried anchor bolt 1;

[0065] After spot welding the iron sheet plug 1 on the direct-buried anchor bolt 1, the direct-buried part is positioned and installed. The positioning and installation process is the same as the conventional anchor bolt embedding process; in particular, the top elevation of the direct-buried anchor bolt 1 needs to be consistent with the concrete surface elevation.

[0066] S2. Pouring foundation concrete

[0067] This step is a conventional anchor bolt embedding process. It should be noted that technical measures should be taken to prevent the embedded parts from being directly impacted from a high place during concrete pouring to avoid excessive offset. Figure 3 shown.

[0068] S3. Remove the iron plug 2 and install the crescent threaded spacer 3;

[0069] The dimensional deviation of the embedded parts is reviewed, and the iron sheet plug 2 is removed after the concrete strength reaches the bolt installation condition. The corresponding crescent thread pad 3 is selected according to the review result, and the upper part is spot welded to the direct-buried anchor bolt anchor 1.

[0070] S4. Install the buried threaded rod

[0071] After the crescent thread pad 3 is installed in place, screw in the rear buried thread rod 4, adjust it to an appropriate height, and weld the periphery of the screw to complete the installation; Figure 1 , Figure 7 shown.

[0072] The present invention solves the problem of poor component integrity due to too many connections when using complex component design through the split design of the anchor bolts, and achieves the technical effect of making the components meet the strength and function requirements while being easy to process and produce; by improving the structure of traditional anchor bolts rather than making major changes in the process, the problem of high technical requirements for workers in complex construction methods is solved, and the technical effect of allowing workers to get started with simple instructions is achieved; the technical means of adjusting the bolt installation deviation by selecting different types of crescent threaded pads has low requirements for pre-embedded accuracy and a larger fault tolerance space, which solves the problem of high difficulty in adjusting the deviation of traditional embedded parts and produces a technical effect of improving construction quality; the present invention has the advantages of strong integrity and high shear strength of direct-buried anchor bolts, as well as the advantage of accurate positioning of post-buried anchor bolts; it can solve the problem of good anchoring effect but low installation accuracy in the direct-buried method of anchor bolts for steel structures.

[0073] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A semi-embedded split steel structure anchor bolt component, characterized in that: It comprises a directly buried anchor bolt anchor (1) and a rear buried threaded rod (4) which is arranged on the directly buried anchor bolt anchor (1) and can be adjusted in position; wherein: The directly buried anchor bolt anchor (1) is in a "J" shape as a whole; the upper section of the directly buried anchor bolt anchor (1) is a hollow structure; An iron sheet plug (2) for temporarily plugging the hollow structure is installed on the top of the directly buried anchor bolt (1); A crescent threaded pad (3) for adjusting the pre-embedded dimension deviation of the directly buried anchor bolt anchor (1) is provided between the directly buried anchor bolt anchor (1) and the post-embedded threaded rod (4); The direct-buried anchor bolt anchor (1) is pre-buried during concrete pouring, and the adjustable post-buried threaded rod (4) is connected to the direct-buried anchor bolt anchor (1) after concrete pouring is completed, so that the split-type anchor bolt embedding construction can be completed, and the dimensional deviation of the direct-buried anchor bolt anchor (1) during construction can be accommodated; the dimensional deviation is adjusted by the crescent thread pad (3), so that the position of the anchor bolt can be accurately controlled.

2. A semi-embedded split steel structure anchor bolt member according to claim 1, characterized in that: The directly buried anchor bolt anchor (1) comprises a J-shaped lower anchor (11) and a columnar upper anchor (12) provided on the J-shaped lower anchor (11); the J-shaped lower anchor (11) and the columnar upper anchor (12) are integrally formed and manufactured.

3. A semi-embedded split steel structure anchor bolt member according to claim 2, characterized in that: The columnar upper anchor (12) is a hollow sleeve structure with an open top; the inner wall of the hollow sleeve structure of the columnar upper anchor (12) is provided with a first internal thread; The top cross-sectional area of ​​the J-shaped lower anchor (11) is smaller than the cross-sectional area of ​​the columnar upper anchor (12); A step is formed on the outer surface of the junction between the J-shaped lower anchor (11) and the columnar upper anchor (12).

4. A semi-embedded split steel structure anchor bolt member according to any one of claims 1 to 3, characterized in that: The size of the iron sheet plug (2) matches the top of the directly buried anchor bolt anchor (1); when in use, it is placed on the top of the directly buried anchor bolt anchor (1).

5. A semi-embedded split steel structure anchor bolt member according to any one of claims 1 to 3, characterized in that: The crescent thread pad (3) is prefabricated in multiple models with different thicknesses according to the deviation of the direct-buried part; and the corresponding thickness specification or a combination of different thicknesses is selected according to the deviation of the direct-buried part.

6. A semi-embedded split steel structure anchor bolt member according to any one of claims 1 to 3, characterized in that: The side surface of the crescent thread pad (3) is in an inverted "L" shape, comprising a crescent clamping plate (31) and an arc-shaped pad (32) vertically arranged at the bottom of the crescent clamping plate (31); The arc-shaped pad (32) and the crescent clamping plate (31) are integrally formed.

7. A semi-embedded split steel structure anchor bolt member according to claim 6, characterized in that: The inner curved end of the crescent clamping plate (31) is connected to the arc-shaped end of the arc-shaped pad (32); The inner curved end of the crescent clamping plate (31) and the arc-shaped end of the arc-shaped pad (32) are of the same length and arc; The curvature of the inner curved end of the crescent clamping plate (31) and the curvature of the curved end of the curved pad (32) are consistent with the curvature of the inner wall of the hollow sleeve of the directly buried anchor bolt (1) and the curvature of the outer wall of the rear buried threaded rod (4); The bottom of the crescent clamping plate (31) is connected to the top of the directly buried anchor bolt (1).

8. The semi-embedded split steel structure anchor bolt member according to claim 6, characterized in that: The inner concave arc surface of the arc-shaped pad (32) is provided with a second inner thread matched with the outer wall thread of the rear buried thread rod (4); The outer convex arc surface of the arc-shaped pad (32) is provided with an outer thread matched with the first inner thread of the inner wall of the hollow sleeve of the directly buried anchor bolt (1).

9. A construction method for a semi-embedded split steel structure anchor bolt component, characterized in that: The method for realizing the installation of a semi-embedded split steel structure anchor bolt component as claimed in any one of claims 1 to 8 comprises the following steps: S1: welding the iron sheet plug (2) to the top of the direct buried anchor bolt anchor (1); S2: Positioning and installing the direct-buried anchor bolt anchor (1) according to the conventional anchor bolt embedding process, ensuring that the top of the direct-buried anchor bolt anchor (1) is consistent with the concrete surface elevation; S3: pouring foundation concrete on the directly buried anchor bolt anchor (1); S4: After the foundation concrete strength reaches the installation condition of the rear buried threaded rod (4), the iron sheet plug (2) is removed, and a crescent threaded spacer (3) is installed on the directly buried anchor bolt anchor (1) according to the size deviation of the directly buried anchor bolt anchor (1); S5: After the crescent threaded pad (3) is installed in place, the rear embedded threaded rod (4) is screwed in between the crescent threaded pad (3) and the directly buried anchor bolt anchor (1). After the rear embedded threaded rod (4) is adjusted to an appropriate height, the periphery of the rear embedded threaded rod (4) is welded and fixed to complete the installation.

10. A construction method for a semi-embedded split steel structure anchor bolt member according to claim 9, characterized in that: Step S4 comprises: reviewing the dimensional deviation of the pre-buried direct-buried anchor bolt (1) to obtain a review result; After the concrete strength reaches the bolt installation condition, the iron sheet plug (2) is removed, and a corresponding crescent thread pad (3) is selected according to the review result and inserted into the hollow sleeve of the direct-buried anchor bolt anchor (1), so that the external thread of the crescent thread pad (3) and the first internal thread of the direct-buried anchor bolt anchor (1) are aligned and matched, and the upper part of the crescent thread pad (3) is spot-welded to the top of the direct-buried anchor bolt anchor (1).

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