Semi-pre-buried split type steel structure anchor bolt component and installation method thereof

Abstract

This invention discloses a semi-embedded split-type steel structure anchor bolt component and its construction method. The component includes a directly embedded anchor bolt anchor and an adjustable post-embedded threaded rod disposed on the directly embedded anchor bolt anchor. The directly embedded anchor bolt anchor is generally "J" shaped. The upper section of the directly embedded anchor bolt anchor is a hollow structure. An iron plug for temporarily sealing the hollow structure is installed on the top of the directly embedded anchor bolt anchor. A crescent-shaped threaded pad is provided between the directly embedded anchor bolt anchor and the post-embedded threaded rod for adjusting the pre-embedded size deviation of the directly embedded anchor bolt anchor. By pre-embedding the directly embedded anchor bolt anchor during concrete pouring, and connecting the adjustable post-embedded threaded rod to the directly embedded anchor bolt anchor after the concrete pouring is completed, the position of the anchor bolt is precisely controlled by adjusting the size deviation through the crescent-shaped threaded pad.

Description

Technical Field

[0001] This invention belongs to the field of steel structure fixing technology, and more specifically, relates to a semi-embedded split steel structure anchor bolt component and its installation method. Background Technology

[0002] In steel structure construction, foundation engineering mainly refers to the installation of embedded bolts in the steel structure foundation. Embedding bolts is the first and crucial step in on-site construction of steel structure projects. The methods for embedding anchor bolts are divided into direct embedding and post-embedding, depending on their sequence with the foundation concrete construction. Direct embedding involves positioning the bolts before pouring concrete, and then embedding them after the concrete has set. Post-embedding involves pre-drilling bolt holes during concrete pouring, inserting the bolts after the concrete has reached a certain strength, and then pouring concrete again. Due to construction organization and cost considerations, most projects use the direct embedding method (pre-embedding) for steel structure foundation bolts, usually completed by the civil engineering unit. However, the civil engineering unit often cannot effectively control the elevation and axis of the embedded anchor bolts. When deviations are significant, deviation correction measures are needed to meet installation requirements, which is time-consuming and labor-intensive. The main measures to address anchor bolt deviations include: adjusting the position of the bolt holes in the column base plate or drilling (cutting) holes, setting up a transition steel frame, etc., to adjust the plane position deviation of the anchor bolts; and adding steel shims, extending bolts, etc., to adjust the elevation deviation.

[0003] To address the aforementioned issues, existing technologies employ a novel support unit within the steel column frame to effectively control the verticality, horizontality, and exposed thread consistency of multiple anchor bolts in the steel column. However, this process is cumbersome, requiring custom-made components, making it less cost-effective. Another existing technology involves installing support plates, positioning plates, and reinforcing column bases together, then using a rotating mechanism to drive the reinforcing column bases to rotate within the pouring layer while concrete is poured. As the reinforcing column bases rotate, the impact force of the concrete is distributed across its perimeter, reducing the likelihood of bending on one side. Simultaneously, the rotation of the reinforcing column bases allows for a tighter fit between the concrete and the base. The upper and lower ends of the reinforcing column bases rotate and pass through the positioning plate and frame, respectively, further reducing the possibility of horizontal movement and thus accurately positioning the planar position and elevation of the pre-embedded anchor bolts. This construction method is essentially a post-embedding construction, further increasing the installation accuracy of the planar position and elevation of the post-embedded components through the device, while minimizing the impact of concrete re-opening. However, this method does not overcome the drawbacks of secondary construction inherent in the post-embedding method. The process is relatively complex, the construction time is long, and some positioning components are poured into the concrete along with the concrete, resulting in higher costs. Another existing technology involves grouping anchor bolts according to the actual site conditions and customizing positioning molds separately. This can easily, quickly, and with high quality complete the high-precision pre-embedding process of anchor bolts in concrete foundations; however, the workload in the construction preparation stage is large, the requirements for construction technicians are high, and the actual implementation is more difficult.

[0004] Therefore, there is an urgent need for an anchor bolt and its construction method that can achieve good anchoring effect after the steel structure anchor bolt is installed, as well as accurate positioning, strong integrity, and high shear strength. Summary of the Invention

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a semi-embedded split-type steel structure anchor bolt component and its installation method. The anchor bolt is designed as a split component, featuring a direct-embedded part and an adjustable post-embedded connector. A crescent-shaped threaded pad is provided between the direct-embedded anchor bolt and the post-embedded threaded rod to adjust for pre-embedded dimensional deviations of the direct-embedded anchor bolt. The direct-embedded part is pre-embedded during concrete pouring, and the adjustable post-embedded connector is connected to the direct-embedded part after concrete pouring to complete the split-type anchor bolt installation. Through its unique split-type design, it not only accommodates dimensional deviations during construction but also significantly improves the construction quality, efficiency, and anchoring effect of steel structure anchor bolts. It combines the advantages of strong integrity and high shear strength of direct-embedded anchor bolts with the accurate positioning of post-embedded anchor bolts.

[0006] To achieve the above objectives, one aspect of the present invention provides a semi-embedded, split-type steel structure anchor bolt component, comprising a directly embedded anchor bolt anchor and an adjustable, post-embedded threaded rod disposed on the directly embedded anchor bolt anchor; wherein...

[0007] The direct-buried anchor bolt is J-shaped; the upper section of the direct-buried anchor bolt is hollow.

[0008] The top of the direct-buried anchor bolt is fitted with an iron plug for temporarily sealing the hollow structure;

[0009] A crescent-shaped threaded pad is provided between the direct-buried anchor bolt and the post-buried threaded rod to adjust the pre-embedded size deviation of the direct-buried anchor bolt;

[0010] By pre-embedding the direct-buried anchor bolts during concrete pouring, and connecting the adjustable post-embedded threaded rod to the direct-buried anchor bolts after concrete pouring, the split-type anchor bolt installation can be completed, which can accommodate dimensional deviations during the construction of the direct-buried anchor bolts; the position of the anchor bolts can be precisely controlled by adjusting the dimensional deviations through the crescent-shaped threaded pad.

[0011] Furthermore, the direct-buried anchor bolt includes a J-shaped lower section anchor and a columnar upper section anchor disposed on the J-shaped lower section anchor; the J-shaped lower section anchor and the columnar upper section anchor are integrally formed.

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

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

[0014] A step is formed on the outer surface of the junction between the J-shaped lower section anchor and the columnar upper section anchor.

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

[0016] Furthermore, the crescent-shaped threaded pad is prefabricated in various models with different thicknesses according to the deviation of the embedded part; the appropriate thickness specification or combination of different thicknesses is selected according to the deviation of the embedded part.

[0017] Furthermore, the side of the crescent-shaped threaded pad is inverted "L" shape, including a crescent-shaped retaining plate and an arc-shaped pad vertically disposed at the bottom of the crescent-shaped retaining plate;

[0018] The arc-shaped pad and the crescent-shaped card plate are integrally molded.

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

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

[0021] The curvature of the inner curved end of the crescent-shaped card plate and the arc-shaped end of the arc-shaped 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 post-buried threaded rod.

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

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

[0024] The outer convex arc surface of the arc-shaped pad is provided with an external thread that matches the first internal thread of the hollow sleeve inner wall of the direct-buried anchor bolt.

[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;

[0027] S2: Position and install the direct-buried anchor bolts according to the conventional anchor bolt installation process, ensuring that the top of the direct-buried anchor bolts is at the same elevation as the concrete surface.

[0028] S3: Pour foundation concrete onto the directly buried anchor bolts;

[0029] S4: After the foundation concrete reaches the installation conditions for the embedded threaded rod, remove the iron plate plug and install crescent threaded pads on the direct-buried anchor bolt according to the size deviation of the direct-buried anchor bolt.

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

[0031] Further, step S4 includes: verifying the dimensional deviations of the pre-embedded direct-buried anchor bolts and obtaining the verification results;

[0032] After the concrete strength reaches the bolt installation conditions, remove the iron plate plug. Based on the verification results, select the appropriate crescent threaded pad and place it into the hollow sleeve of the direct-buried anchor bolt. Align the external thread of the crescent threaded pad with the first internal thread of the direct-buried anchor bolt. Spot weld the upper part of the crescent threaded pad to the top of the direct-buried anchor bolt.

[0033] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0034] (1) The present invention discloses a semi-embedded split-type steel structure anchor bolt component and its construction method. The anchor bolt is designed in a split-type manner, with a direct-embedded part and an adjustable post-embedded connector. The direct-embedded part is pre-embedded during concrete pouring, and the adjustable post-embedded connector is connected to the direct-embedded part after the concrete is poured to complete the split-type anchor bolt installation. This method can adapt to dimensional deviations during construction. By adjusting the crescent-shaped threaded pad, the position of the anchor bolt can be controlled more precisely, which can improve the construction quality. The installation and adjustment of the anchor bolt after concrete pouring reduces the waiting time during construction and improves construction efficiency. The present invention can ensure good anchoring effect and accurate positioning of the steel structure anchor bolt after construction. The present invention can avoid the force concentration phenomenon caused by the decrease in 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 direct-embedded anchor bolts, as well as the advantages of accurate positioning of post-embedded anchor bolts. 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 present invention provides a semi-embedded split steel structure anchor bolt component and its construction method. By using a split design for the anchor bolt, which is not complicated, the invention solves the problem of poor overall integrity caused by using complex component design and too many connections. It achieves the technical effect of making the component meet the requirements of strength and function while being easy to process and produce.

[0036] (3) The present invention provides a semi-embedded split steel structure anchor bolt component and its construction method. By improving the structure of traditional anchor bolts rather than making significant modifications to the process, it solves the problem that complex construction methods require high technical skills from workers and achieves the technical effect that workers can operate the equipment with simple instructions.

[0037] (4) The present invention provides a semi-embedded split steel structure anchor bolt component and its construction method. By selecting different types of crescent thread pads to adjust the bolt installation deviation, the requirements for pre-embedded accuracy are low, and there is a large tolerance space. This solves the problem of high difficulty in adjusting the deviation of traditional pre-embedded parts and produces the technical effect of improving construction quality. Attached Figure Description

[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 This is a partially 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 This is a schematic diagram of the installation of the iron plate plug of a semi-embedded split steel structure anchor bolt component according to an embodiment of the present invention;

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

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

[0043] Figure 6 This is a top view schematic diagram of the crescent-threaded 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 top view of a semi-embedded split steel structure anchor bolt component after construction, according to an embodiment of the present invention.

[0045] Figure 8 This is a schematic flowchart illustrating 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 accompanying drawings, the same reference numerals indicate the same technical features, specifically: 1-directly buried anchor bolt, 11-J-shaped lower section anchor, 12-column-shaped upper section anchor, 2-iron sheet plug, 3-crescent threaded pad, 31-crescent clamping plate, 32-arc-shaped pad, 4-rear-buried threaded rod. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, when an element is referred to as "fixed to," "set on," or "provided on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element. The terms "mounted," "connected," "linked," and "provided with" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] like Figures 1-7As shown, one aspect of the present invention provides a semi-embedded split-type steel structure anchor bolt component, comprising a directly embedded anchor bolt anchor 1 and an adjustable post-embedded threaded rod 4 disposed on the directly embedded anchor bolt anchor 1; the directly embedded anchor bolt anchor 1 is pre-embedded during concrete pouring to ensure that its position and elevation meet design requirements; the post-embedded threaded rod 4 is connected to the directly embedded anchor bolt anchor 1 after concrete pouring to complete the split-type anchor bolt installation; the directly embedded anchor bolt anchor 1 is generally "J" shaped; the upper section of the directly embedded anchor bolt anchor 1 is a hollow structure; an iron plug 2 for temporarily sealing the hollow structure is installed on the top of the directly embedded anchor bolt anchor 1; and the direct embedded anchor bolt anchor 1 and the post-embedded threaded rod 4 are connected... The invention includes a crescent-threaded pad 3 for adjusting the pre-embedded dimensional deviation of the directly buried anchor bolt 1. Structurally, the anchor bolt is designed as a split unit, comprising a directly embedded component and an adjustable post-embedded connector. The directly embedded component is pre-embedded during concrete pouring, and the adjustable post-embedded connector connects to the directly embedded component after concrete pouring, thus completing the split-type anchor bolt installation and accommodating dimensional deviations during construction. Adjustment of the crescent-threaded pad 3 allows for more precise control of the anchor bolt position, improving construction quality. The split design allows for anchor bolt installation and adjustment after concrete pouring, reducing waiting time and improving construction efficiency. This invention combines the advantages of directly buried anchor bolts (high integrity and shear strength) with the accurate positioning of post-embedded anchor bolts.

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

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

[0053] Furthermore, such as Figures 1-7 As shown, the crescent-shaped threaded pad 3 has an inverted "L" shape on its side, including a crescent-shaped retaining plate 31 and an arc-shaped pad 32 vertically disposed at the bottom of the crescent-shaped retaining plate 31; the arc-shaped pad 32 and the crescent-shaped retaining plate 31 are integrally formed; the crescent-shaped threaded pad 3 is prefabricated in various models with different thicknesses according to the deviation of the direct-buried parts; the appropriate thickness specification or combination of different thicknesses is selected according to the deviation of the direct-buried parts; the crescent-shaped threaded pad 3 is used to connect the direct-buried anchor bolt 1 and the post-buried threaded rod 4, and is used to adjust the dimensional deviation of the direct-buried anchor bolt 1 during pre-embedding; the design of the crescent-shaped threaded pad 3 can improve the flexibility and accuracy of anchor bolt installation; when the crescent-shaped threaded pad 3 is connected to the direct-buried anchor bolt 1, the inverted "L" shape hooks onto the top of the direct-buried anchor bolt 1 and is connected by spot welding; the design of the crescent-shaped threaded pad 3 can improve the flexibility and accuracy of anchor bolt installation.

[0054] Furthermore, such as Figures 1-7 As shown, the inner curved end of the crescent-shaped clamping plate 31 is connected to the arc-shaped end of the arc-shaped pad 32; the length and curvature of the inner curved end of the crescent-shaped clamping plate 31 and the arc-shaped end of the arc-shaped pad 32 are the same; the curvature of the inner curved end of the crescent-shaped clamping plate 31 and the arc-shaped end of the arc-shaped 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 post-buried threaded rod 4; the concave arc surface of the arc-shaped pad 32 is provided with a second internal thread that matches the outer wall thread of the post-buried threaded rod 4; the convex arc surface of the arc-shaped pad 32 is provided with an external thread that matches 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-shaped clamping plate 31 is connected to the top of the direct-buried anchor bolt anchor 1; the crescent-shaped threaded pad 3 can be flexibly selected or combined according to the specific deviation in actual construction, which can achieve the best adjustment effect and ensure the accurate installation of the anchor bolt and the stability of the structure.

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

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

[0057] S2: Position and install the direct-buried anchor bolt 1 according to the conventional anchor bolt embedding process, ensuring that the top of the direct-buried anchor bolt 1 is at the same elevation as the top surface of the concrete foundation.

[0058] S3: Pour foundation concrete on the directly buried anchor bolt 1; This step is a conventional anchor bolt installation process. It should be noted that technical measures should be taken to prevent the concrete from directly impacting the embedded parts from a height during pouring, so as to avoid excessive displacement of the directly buried anchor bolt 1.

[0059] S4: After the foundation concrete reaches the installation conditions for the embedded threaded rod 4, remove the iron plate plug 2, and install the crescent threaded pad 3 on the direct-buried anchor bolt 1 according to the dimensional deviation of the direct-buried anchor bolt 1; specifically, check the dimensional deviation of the pre-embedded direct-buried anchor bolt 1, remove the iron plate plug 2 after the concrete strength reaches the bolt installation conditions, select the corresponding crescent threaded pad 3 according to the check result and place it into the hollow sleeve of the direct-buried anchor bolt 1, align the external thread of the crescent threaded pad 3 with the first internal thread of the direct-buried anchor bolt 1, and spot weld the upper part of the crescent threaded pad 3 to the top of the direct-buried anchor bolt 1;

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

[0061] The semi-embedded split-type steel structure anchor bolts provided by this invention allow for precise adjustment of the anchor bolts after concrete pouring, thereby improving the installation accuracy and overall stability of the steel structure. In addition, the split design facilitates later maintenance and replacement. In actual construction, each step needs to be strictly implemented in accordance with technical requirements to ensure construction quality and safety.

[0062] The following example uses anchor bolts in the steel column foundation of a steel structure project. 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 drawings, the anchor bolts are designed as separate units. 1-The diameter of the directly buried anchor bolt anchor 1 is 16mm, with internal threading on the installation bolt section, a length of 330mm, an inner diameter of 20mm, and an outer diameter of 36mm. The iron plug 2 is a 36mm diameter iron sheet with a thickness of 2mm. The crescent-shaped threaded pad 3 has an inverted "L" shape on its side, a length of 80mm, and its crescent structure in the top view matches the installation bolt section of the directly buried anchor bolt anchor 1. The post-buried threaded rod 4 has a diameter of 16mm and a length of 320mm.

[0063] According to the method for semi-embedded split steel structure anchor bolts of the present invention, the installation of the anchor bolts is achieved through the following specific steps:

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

[0065] After spot welding the iron plug 1 onto 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 must be consistent with the concrete surface elevation.

[0066] S2. Pouring foundation concrete

[0067] This step is a standard anchor bolt installation process. It's important to note that technical measures should be taken to prevent direct impact from concrete pouring from a height on the embedded parts, thus avoiding excessive displacement. The finished pouring result is as follows. Figure 3 As shown.

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

[0069] The dimensional deviations of the embedded parts are checked. After the concrete strength reaches the bolt installation conditions, the iron plate plug 2 is removed. According to the check results, the corresponding crescent thread pad 3 is selected and the upper part is spot welded to the anchor 1 of the direct-buried anchor bolt.

[0070] S4. Install the threaded rod after installation.

[0071] After the crescent-shaped threaded pad 3 is installed in place, screw in the embedded threaded rod 4, adjust it to the appropriate height, and then weld the perimeter of the threaded rod to fix it, completing the installation; Figure 1 , Figure 7 As shown.

[0072] This invention solves the problem of poor overall integrity caused by complex component designs and excessive connections by using a simple split design for anchor bolts. It achieves the technical effect of enabling components to meet strength and function requirements while being easy to process and produce. By improving the structure of traditional anchor bolts rather than making significant modifications to the process, it solves the problem of high skill requirements for workers in complex construction methods, achieving the technical effect of allowing workers to operate the equipment with simple instructions. The technique of adjusting bolt installation deviations by using different types of crescent-threaded washers lowers the requirements for pre-embedding accuracy, provides greater tolerance, and solves the problem of high difficulty in adjusting deviations of traditional pre-embedded parts, resulting in improved construction quality. This invention combines the advantages of strong integrity and high shear strength of directly buried anchor bolts with the advantages of accurate positioning of post-buried anchor bolts. It can solve the problem of good anchoring effect but low installation accuracy in the direct burial method of steel structure anchor bolt construction.

[0073] Those skilled in the art will readily understand that the above description is merely 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 within the scope of protection of the present invention.

Claims

1. A semi-embedded, split-type steel structure anchor bolt component, characterized in that: Includes a direct-buried anchor bolt (1) and a post-buried threaded rod (4) that is adjustable and positioned on the direct-buried anchor bolt (1); wherein, The direct-buried anchor bolt (1) is J-shaped in general; the upper section of the direct-buried anchor bolt (1) is a hollow structure; The top of the direct-buried anchor bolt (1) is equipped with an iron plug (2) for temporary sealing of the hollow structure; the iron plug (2) matches the top of the direct-buried anchor bolt (1) and is connected by spot welding, so as to achieve complete sealing during the concrete pouring process and prevent concrete from entering the interior of the hollow structure. Between the direct-buried anchor bolt (1) and the post-buried threaded rod (4), a crescent-shaped threaded pad (3) is provided for adjusting the pre-embedded size deviation of the direct-buried anchor bolt (1); the side of the crescent-shaped threaded pad (3) is inverted "L" shape, including a crescent-shaped clamping plate (31) and an arc-shaped pad (32) vertically set at the bottom of the crescent-shaped clamping plate (31). The concave arc surface of the arc-shaped pad (32) is provided with a second internal thread that matches the outer wall thread of the post-buried threaded rod (4), and the convex arc surface is provided with an external thread that matches the first internal thread of the hollow sleeve of the direct-buried anchor bolt (1). The crescent-shaped threaded pad (3) is prefabricated with various models of different thicknesses according to the deviation of the direct-buried parts, and multi-dimensional size deviation adjustment can be achieved by a single model or a combination of different models. By pre-embedding the direct-buried anchor bolt (1) during concrete pouring, and connecting the adjustable post-embedded threaded rod (4) to the direct-buried anchor bolt (1) after concrete pouring, the split-type anchor bolt installation can be completed. This can adapt to the dimensional deviations during the construction of the direct-buried anchor bolt (1). By adjusting the dimensional deviations through the crescent threaded pad (3), the position of the anchor bolt can be precisely controlled, ensuring the accurate connection of the steel structure installation.

2. The semi-embedded split-type steel structure anchor bolt component according to claim 1, characterized in that: The direct-buried anchor bolt (1) includes a J-shaped lower section anchor (11) and a columnar upper section anchor (12) disposed on the J-shaped lower section anchor (11); the J-shaped lower section anchor (11) and the columnar upper section anchor (12) are integrally formed.

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

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

5. A semi-embedded split-type steel structure anchor bolt component according to any one of claims 1-3, characterized in that: Select appropriate thickness specifications or crescent thread pads (3) of different thicknesses according to the deviation of the direct-embedded parts.

6. A semi-embedded split-type steel structure anchor bolt component according to any one of claims 1-3, characterized in that: The arc-shaped pad (32) and the crescent-shaped card plate (31) are integrally formed.

7. A semi-embedded split-type steel structure anchor bolt component according to claim 6, characterized in that: The inner curved end of the crescent-shaped card plate (31) is connected to the arc-shaped end of the arc-shaped pad plate (32); The inner curved end of the crescent-shaped card plate (31) and the arc-shaped end of the arc-shaped pad plate (32) have the same length and curvature; The curvature of the inner curved end of the crescent plate (31) and the arc 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 (1) and the curvature of the outer wall of the post-buried threaded rod (4). The bottom of the crescent-shaped card plate (31) is connected to the top of the direct-buried anchor bolt (1).

8. A construction method for a semi-embedded split-type steel structure anchor bolt component, characterized in that, The method for installing a semi-embedded split-type steel structure anchor bolt component as described in any one of claims 1-7 includes the following steps: S1: Weld the iron sheet plug (2) to the top of the direct-buried anchor bolt (1); S2: The anchor bolt (1) is positioned and installed according to the conventional anchor bolt installation process to ensure that the top of the anchor bolt (1) is at the same elevation as the concrete surface. S3: Pour foundation concrete on the directly buried anchor bolt (1); S4: After the foundation concrete reaches the installation conditions of the embedded threaded rod (4), remove the iron plate plug (2) and install the crescent threaded pad (3) on the anchor bolt (1) according to the size deviation of the anchor bolt (1). S5: After the crescent threaded pad (3) is installed in place, the post-embedded threaded rod (4) is screwed between the crescent threaded pad (3) and the direct-buried anchor bolt (1). After the post-embedded threaded rod (4) is adjusted to an appropriate height, the periphery of the post-embedded threaded rod (4) is welded and fixed to complete the installation.

9. A construction method for a semi-embedded split-type steel structure anchor bolt component according to claim 8, characterized in that, Step S4 includes: verifying the dimensional deviation of the pre-embedded direct-buried anchor bolts (1) and obtaining the verification results; After the concrete strength reaches the bolt installation conditions, remove the iron plate plug (2), select the corresponding crescent threaded pad (3) according to the verification results, and place it into the hollow sleeve of the direct-buried anchor bolt (1) so that the external thread of the crescent threaded pad (3) is aligned with the first internal thread of the direct-buried anchor bolt (1), and spot weld the upper part of the crescent threaded pad (3) to the top of the direct-buried anchor bolt (1).

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