Construction method of secondary embedding of structural embedded parts and installation structure

Abstract

The application discloses a construction method and an installation structure for secondary embedding of a structural embedded part, and the method comprises the following steps: bedding layer construction; vertically embedding first embedded steel bars around a region corresponding to a pre-installation position of the structural embedded part in the bedding layer, and vertically embedding second embedded steel bars in the region of the pre-installation position of the structural embedded part; pouring a concrete cushion layer on the bedding layer; binding structural steel bars on the concrete cushion layer, and welding and fixing the first embedded steel bars with the structural steel bars; embedding the structural embedded part in the structural steel bars, and welding and fixing steel bars at a lower end of the structural embedded part with the second embedded steel bars; and pouring structural steel concrete. The structural steel bars and the structural embedded part are welded with different embedded steel bars respectively, the embedded steel bars can be fixed and bear the load of the structural embedded part during construction, the load bearing capacity and the rigidity of a steel framework in a surrounding region of the structural embedded part are enhanced, the structural embedded part is protected from disturbance, and the spatial position of the structural embedded part is ensured to be accurate.

Description

Technical Field

[0001] This invention relates to the field of structural embedded parts construction technology, specifically to a secondary embedded part construction method and installation structure. Background Technology

[0002] Structural embedded parts are widely used in reinforced concrete structures for connecting and fixing curtain walls, canopies, and connecting and installing equipment. Currently, the existing practice is to weld and fix the structural embedded parts to the reinforcing steel after the steel reinforcement is installed, and then pour concrete. This method makes the embedded parts highly susceptible to disturbance and displacement during formwork sealing or concrete pouring, resulting in limited installation accuracy. While this method may be sufficient for ordinary curtain walls and canopies where high installation accuracy is not required, it is crucial for weighbridges and high-end information technology equipment (such as top-mounted vehicle inspection equipment and large H986 systems). The spatial accuracy of the embedded parts directly affects their normal operation, thus requiring higher installation precision that is difficult to achieve using conventional techniques.

[0003] To address the aforementioned technical problems, this invention proposes a secondary pre-embedding construction method and installation structure for structural pre-embedded parts that improves the stability and installation accuracy of the pre-embedded parts. Summary of the Invention

[0004] The purpose of this invention is to provide a secondary pre-embedded construction method and installation structure for structural embedded parts. This invention sets two types of pre-embedded steel bars in the concrete cushion layer, and welds the structural steel bars and structural embedded parts to different pre-embedded steel bars respectively. The pre-embedded steel bars can not only be fixed separately and bear the load on the structural embedded parts during construction, but also enhance the bearing capacity and rigidity of the steel skeleton around the structural embedded parts, protect the structural embedded parts from disturbance, and ensure the accuracy of their spatial position.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] On the one hand, the present invention provides a method for secondary pre-embedding of structural embedded parts, comprising the following steps:

[0007] The mattress layer shall be constructed in accordance with the design requirements;

[0008] A first embedded steel bar is vertically embedded around the area corresponding to the pre-installation position of the structural embedded part in the mattress layer, and a second embedded steel bar is vertically embedded in the area of ​​the pre-installation position of the structural embedded part, with the first embedded steel bar being higher than the second embedded steel bar.

[0009] A concrete cushion layer was poured on top of the mattress layer;

[0010] Structural steel bars are tied on the concrete cushion layer, with the first pre-embedded steel bar having the same height as the structural steel bar and the two being welded together.

[0011] A structural embedded part is inserted into the structural steel reinforcement, and the steel reinforcement at the lower end of the structural embedded part is welded and fixed to the second embedded steel reinforcement.

[0012] Structural reinforced concrete pouring.

[0013] Furthermore, the process before constructing the mattress layer also includes:

[0014] Excavation to the design elevation and inspection of the trench;

[0015] Mark the pre-installation positions of the embedded structural components.

[0016] Furthermore, the thickness of the area corresponding to the pre-installation position of the embedded structural component in the concrete cushion layer is greater than the thickness of the surrounding area.

[0017] Furthermore, the second embedded reinforcing bar includes a vertical long reinforcing bar and a horizontal short reinforcing bar perpendicular to the vertical long reinforcing bar. The horizontal short reinforcing bar is welded and fixed to the vertical long reinforcing bar and is embedded in the concrete cushion layer.

[0018] Furthermore, the upper and lower layers of structural steel bars are welded and fixed to the upper and middle ends of the first pre-embedded steel bars, respectively.

[0019] On the other hand, the present invention provides a structural embedded part installation structure, comprising:

[0020] mattress padding layer;

[0021] A concrete cushion layer is poured on top of the mattress layer;

[0022] The first embedded steel bar and the second embedded steel bar are both embedded in the mattress layer and the concrete pad layer, and the first embedded steel bar is higher than the second embedded steel bar.

[0023] Structural reinforcing bars are tied to the concrete cushion layer, and the middle and upper ends of the first pre-embedded reinforcing bar are welded and fixed to the structural reinforcing bars.

[0024] The structural embedded part is installed in the structural reinforcement. The reinforcement at the lower end of the structural embedded part is welded and fixed to the second embedded reinforcement. The first embedded reinforcement is located around the structural embedded part.

[0025] By adopting the above solution, the present invention has the following beneficial effects:

[0026] 1) The structural embedded parts are separated from the structural steel bars, and the disturbance of the structural steel bars will not affect the structural embedded parts.

[0027] 2) The structural embedded parts are fixed by a second embedded steel bar with a lower height, which has sufficient load-bearing capacity, is not easily disturbed, and ensures installation accuracy.

[0028] 3) The structural steel bars around the embedded parts are fixed by the first embedded steel bars with a higher height embedded in the concrete pad and mattress layer. They have a large bearing capacity and are not easily collapsed. They can share the loads acting on the embedded parts during construction and play a certain protective role.

[0029] 4) The concrete cushion layer within the scope of the structural embedded parts is relatively thick to ensure that the cushion layer has sufficient embedding and bearing capacity for the embedded steel bars. Attached Figure Description

[0030] Figure 1 This is a flowchart illustrating a secondary pre-embedding construction method for structural embedded parts according to an embodiment of the present invention;

[0031] Figure 2 This is a top view of a pre-embedded component installation structure according to an embodiment of the present invention;

[0032] Figure 3 for Figure 2 Section 1-1.

[0033] Label Explanation

[0034] 1. Mattress layer, 2. Concrete cushion layer, 3. First embedded steel bar, 4. Second embedded steel bar, 41. Vertical long steel bar, 42. Horizontal short steel bar, 6. Structural embedded part, 61. Steel plate and 62. Detailed Implementation

[0035] like Figure 1 As shown in the figure, an embodiment of the present invention discloses a method for secondary pre-embedding of structural embedded parts, the construction steps of which are as follows:

[0036] S1. Excavate the earthwork to the design elevation and inspect the trench.

[0037] S2. Mark the pre-installation positions of the embedded parts in the structure.

[0038] S3. Construct and inspect the mattress layer according to the design requirements. Mattress layer 1 is generally a mixed crushed stone mattress layer.

[0039] S4, such as Figure 2 and 3 As shown, the first embedded steel bar 3 is vertically embedded around the area corresponding to the pre-installation position of the structural embedded part 6 in the mattress layer 2, and the second embedded steel bar 4 is vertically embedded in the area of ​​the pre-installation position of the structural embedded part 6. The first embedded steel bar 3 is higher than the second embedded steel bar 4. Generally, the lower end of the first embedded steel bar 3 and the second embedded steel bar 4 can be embedded into the mattress layer 1 by tapping the first embedded steel bar 3 and the second embedded steel bar 4.

[0040] S5. A concrete cushion layer 2 is poured on the cushion layer 1, so that the first embedded steel bar 3 and the second embedded steel bar 4 can be simultaneously embedded in the cushion layer 1 and the concrete cushion layer 2. In order to make the concrete cushion layer 2 within the range of the structural embedded part 6 thicker, and to ensure that the concrete cushion layer 2 has sufficient embedding and bearing capacity for the first embedded steel bar 3 and the second embedded steel bar 4, in this preferred embodiment, the pouring thickness of the area of ​​the concrete cushion layer 2 corresponding to the pre-installation position of the structural embedded part 6 is greater than the pouring thickness of the surrounding area, and at the same time, the thickness of the cushion layer 1 in the area of ​​the pre-installation position of the structural embedded part 6 is less than the thickness of the surrounding area, so as to ensure that the top surface of the concrete cushion layer 2 can be flat after the construction of the cushion layer 1 and the concrete cushion layer 2.

[0041] S6. Structural reinforcing bars 5 are tied to the concrete cushion layer 2. The first embedded reinforcing bar 3 and the structural reinforcing bar 5 are at the same height and are welded together. Preferably, in this embodiment, the upper and lower layers of the structural reinforcing bars 5 are welded to the upper and middle ends of the first embedded reinforcing bars 3, respectively. The structural reinforcing bars 5 surrounding the structural embedded part 6 are fixed by the higher first embedded reinforcing bars 3 embedded in the concrete cushion layer and mattress layer. This provides greater load-bearing capacity, making them less prone to collapse, and can share the load acting on the structural embedded part during construction, thus providing a certain degree of protection.

[0042] S7. Insert the structural embedded part 6 into the structural steel bar 5, and weld the steel bar 62 at the lower end of the structural embedded part 6 to the second embedded steel bar 4. The structural embedded part 6 is generally composed of a steel plate 61 and a steel bar 62 welded together. When installing the structural embedded part 6, the steel plate 61 is arranged on the upper surface of the structural steel bar 5, while the steel bar 62 is inserted into the interior and welded to the second embedded steel bar 4 with a lower height. Before welding, the structural embedded part 6 needs to be composite positioned to avoid it deviating from the pre-installation position.

[0043] S8. After the steel reinforcement is inspected and accepted, the formwork is erected, and finally the concrete is poured for the structural steel reinforcement 5.

[0044] As a further preferred embodiment, the second embedded steel bar 4 is composed of a vertical long steel bar 41 and a horizontal short steel bar 42 perpendicular to the vertical long steel bar. The horizontal short steel bar 42 is welded and fixed to the vertical long steel bar 41, and the horizontal short steel bar 42 is embedded in the concrete cushion layer 2. The horizontal short steel bar 42 can further increase the embedding effect of the second embedded steel bar 4 in the concrete cushion layer 2.

[0045] like Figure 2 and 3As shown, this embodiment also discloses a structural embedded component installation structure based on the above construction method, including a mattress layer 1, a concrete cushion layer 2, a first embedded steel bar 3, a second embedded steel bar 4, a structural steel bar 5, and a structural embedded component 6; the concrete cushion layer 2 is poured on the mattress layer 1; the lower ends of the first embedded steel bar 3 and the second embedded steel bar 4 are both embedded in the mattress layer 1 and the concrete cushion layer 2, and the first embedded steel bar 3 is higher than the second embedded steel bar 4; the structural steel bar 5 is tied to the concrete cushion layer 2, and the middle and upper ends of the first embedded steel bar 3 are welded and fixed to the structural steel bar 5; the structural embedded component 6 is installed in the structural steel bar 5, and the steel bar 62 at the lower end of the structural embedded component 6 is welded and fixed to the second embedded steel bar 4, and the first embedded steel bar 3 is arranged around the structural embedded component 6.

[0046] The structural embedded parts installation structure obtained by using the above-mentioned secondary embedded parts construction method has the following characteristics:

[0047] 1. By setting the second embedded steel bar 4 in the concrete cushion layer 2, the structural embedded part 6 can be directly welded and fixed to the second embedded steel bar 4, avoiding unnecessary disturbance during the structural construction process caused by fixing it to the structural steel bar 5, which would affect the accuracy of the position of the structural embedded part 6.

[0048] Second, by setting the first embedded steel bar 3 in the concrete cushion layer 2, the structural steel bars 5 around the structural embedded part 6 are welded and fixed to the first embedded steel bar 3, which increases the rigidity of the steel bar skeleton around the structural embedded part 6, prevents it from being stepped on during construction, thereby avoiding disturbance to the structural embedded part and further ensuring the accuracy of the position of the structural embedded part.

[0049] The above description is merely an example of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for secondary pre-embedding of structural embedded parts, characterized in that... This includes the following steps: The mattress layer shall be constructed in accordance with the design requirements; A first embedded steel bar is vertically embedded around the area corresponding to the pre-installation position of the structural embedded part in the mattress layer, and a second embedded steel bar is vertically embedded in the area of ​​the pre-installation position of the structural embedded part, with the first embedded steel bar being higher than the second embedded steel bar. A concrete cushion layer is poured on the mattress layer, wherein the thickness of the area corresponding to the pre-installation position of the embedded structural component in the concrete cushion layer is greater than the thickness of the surrounding area. Structural steel bars are tied on the concrete cushion layer. The first pre-embedded steel bar and the structural steel bar are at the same height and are welded together. The upper and lower layers of the structural steel bar are welded to the upper and middle ends of the first pre-embedded steel bar, respectively. A structural embedded part is inserted into the structural steel reinforcement, and the steel reinforcement at the lower end of the structural embedded part is welded and fixed to the second embedded steel reinforcement. The second embedded steel reinforcement includes a vertical long steel reinforcement and a horizontal short steel reinforcement perpendicular to the vertical long steel reinforcement. The horizontal short steel reinforcement is welded and fixed to the vertical long steel reinforcement, and the horizontal short steel reinforcement is embedded in the concrete cushion layer. Structural reinforced concrete pouring.

2. The secondary pre-embedding construction method for structural embedded parts as described in claim 1, characterized in that, The steps preceding the construction of the mattress layer also include: Excavation to the design elevation and inspection of the trench; Mark the pre-installation positions of the embedded structural components.

3. A structural embedded component installation structure, characterized in that... include: mattress padding layer; A concrete cushion layer is poured on top of the mattress layer; The first embedded steel bar and the second embedded steel bar are both embedded in the mattress layer and the concrete pad layer, and the first embedded steel bar is higher than the second embedded steel bar. Structural reinforcing bars are tied to the concrete cushion layer, and the middle and upper ends of the first pre-embedded reinforcing bar are welded and fixed to the structural reinforcing bars. The structural embedded part is installed in the structural reinforcement. The reinforcement at the lower end of the structural embedded part is welded and fixed to the second embedded reinforcement. The first embedded reinforcement is located around the structural embedded part.

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