A detachable diaphragm wall diagonal bracing device

Abstract

This utility model relates to a detachable diaphragm wall diagonal bracing device, comprising a diaphragm wall and a steel support, connected by a steel shoe; the steel shoe includes a pre-embedded component and a detachable component; wherein, the pre-embedded component includes a first steel plate, several shear supports, and several anchor bars, the first steel plate being pre-embedded on the surface of the diaphragm wall, and the first steel plate being welded to several shear supports and several anchor bars cast in the diaphragm wall; the detachable component includes a second steel plate, the first steel plate and the second steel plate being detachably connected by several bolts, and the steel support being installed on the detachable component; the detachable diaphragm wall diagonal bracing device of this utility model has at least the following beneficial effects: no construction gaps are generated between the steel shoe structure and the diaphragm wall, so that the axial force of the support can be effectively and evenly transmitted to the diaphragm wall; at the same time, the connection between the steel shoe and the diaphragm wall is reliable and stable, and the installation and disassembly of the steel shoe are convenient, improving construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of construction, and more specifically, to a detachable diaphragm wall diagonal bracing device. Background Technology

[0002] In current urban rail transit construction, the station structure using a diaphragm wall + steel support system is widely used. Existing construction methods typically involve welding steel walers onto steel plates pre-reserved within the diaphragm wall to distribute the axial force of the steel support and ensure that the shear resistance of the diaphragm wall meets design requirements. However, this method also has the following drawbacks: I. Regarding construction quality, it is difficult to fully control the precision of on-site construction. Construction gaps of varying widths often appear between the steel walers and the diaphragm wall. Even if materials such as cement grout are used to fill the gaps, it is difficult to ensure that the supporting axial force can be effectively and evenly transmitted to the diaphragm wall.

[0003] Second, in terms of construction efficiency, the installation process of steel walers has obvious drawbacks. Due to the large size and heavy weight of the steel walers themselves, it is extremely inconvenient to move and position them on the construction site. The on-site welding work between steel walers is not only complicated, but also requires a lot of manpower and time, which seriously affects the construction progress.

[0004] The aforementioned traditional support methods have obvious structural risks. Because the reliability of the connection between the steel waler and the diaphragm wall is difficult to guarantee, the support system is prone to instability in the event of sudden changes in construction load or geological conditions, posing a potential risk to the safety of the entire station structure. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings mentioned in the background art and provide a detachable ground-connected wall diagonal bracing force-bearing device.

[0006] The objective of this utility model is achieved through the following technical solution: A detachable diaphragm wall diagonal bracing device includes a diaphragm wall and a steel support, which are connected by a steel shoe. The steel boot includes a pre-embedded component and a detachable component; wherein, the pre-embedded component includes a first steel plate, several shear supports and several anchor bars, the first steel plate is pre-embedded on the surface of the diaphragm wall, and the first steel plate is welded to several shear supports and several anchor bars cast in the diaphragm wall. The detachable component includes a second steel plate, and the first and second steel plates are detachably connected by several bolts. A steel support is installed on the detachable component.

[0007] The detachable diaphragm wall diagonal bracing device of this utility model has at least the following beneficial effects: By replacing the traditional steel waler structure in the industry with steel boots, the first steel plate in the steel boot is pre-embedded in the diaphragm wall. The first and second steel plates are positioned and fastened by bolts, which can realize the assembly of the steel boot. This ensures that there are no construction gaps between the steel boot structure and the diaphragm wall, and that the supporting axial force can be effectively and evenly transmitted to the diaphragm wall.

[0008] In addition, since the first steel plate and shear support have been pre-embedded in the diaphragm wall, only the second steel plate and other remaining parts need to be installed during the installation of the steel shoe, reducing the workload; and the second steel plate and the first steel plate are positioned and fastened with bolts, ensuring reliable connection while making installation and disassembly convenient and improving construction efficiency.

[0009] In addition, the first steel plate is securely pre-embedded in the diaphragm wall by several shear bars and several anchor bars, and the connection between the steel shoe and the diaphragm wall is reliable and stable.

[0010] Furthermore, several anti-shear stools are vertically and spaced apart within the diaphragm wall on the back of the first steel plate, ensuring that the first steel plate is firmly connected to the diaphragm wall at all points.

[0011] Furthermore, several anchor bars are pre-embedded in the diaphragm walls on both the upper and lower sides of each set of shear benches to improve the uniformity of the distribution of anchor bars and shear benches.

[0012] Furthermore, the shear support includes two sets of third steel plates arranged vertically. Both sets of third steel plates are welded obliquely to the back of the first steel plate, and the free ends of the two sets of third steel plates are welded together to increase the contact and stress area between the shear support and the diaphragm wall during pouring, thereby further increasing the reliability of the steel shoe installation.

[0013] Furthermore, the detachable component also includes a bracing base welded to a second steel plate, with steel supports mounted on the bracing base, the bracing base being adapted to the tilt angle of the steel supports.

[0014] Furthermore, the diagonal brace base includes two sets of fourth steel plates welded to the second steel plate, with the free ends of the two sets of fourth steel plates welded together. Steel ribs are also welded to the area enclosed between the second steel plate and the two sets of fourth steel plates to improve the structural strength and stability of the diagonal brace base. Among the two sets of fourth steel plates, the upper set of fourth steel plates is supported at the lower end of the steel support. Furthermore, several bolts are arranged on the first steel plates on the upper and lower sides of the diagonal brace base.

[0015] Furthermore, an anti-slip rib is also provided below the diagonal brace base. The anti-slip rib is welded to the second steel plate to improve the reliability of the entire steel shoe installation structure and reduce the risk of instability of the steel shoe support system.

[0016] Furthermore, the upper contour of the anti-slip rib plate is adapted to the lower contour of the brace base, and the upper contour of the anti-slip rib plate is welded to the lower contour of the brace base.

[0017] Furthermore, the two sets of fourth steel plates within the diagonal brace base are welded together perpendicularly to each other. Attached Figure Description

[0018] Figure 1 This is a front view of the detachable diaphragm wall diagonal bracing force-bearing device in an embodiment of this utility model; Figure 2 for Figure 1 A cross-sectional view of the diaphragm wall diagonal bracing device under plane AA; Figure 3 This is an unfolded view of the steel boot structure in an embodiment of this utility model; The attached diagram lists the components represented by each number as follows: 1. Diaphragm wall; 2. Steel support; 3. Steel shoe; 30. Embedded component; 300. First steel plate; 301. Shear support; 3010. Third steel plate; 302. Anchor bar; 31. Demountable component; 310. Second steel plate; 311. Diagonal brace base; 3110. Fourth steel plate; 3111. Steel rib; 32. Bolt; 33. Anti-slip rib. Detailed Implementation

[0019] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] Reference Figures 1 to 3 This utility model discloses a detachable diaphragm wall diagonal bracing device, including a diaphragm wall 1, a steel support 2 and a steel shoe 3, wherein the diaphragm wall 1 and the steel support 2 are detachably connected by the steel shoe 3.

[0021] The steel shoe 3 includes two main parts: a pre-embedded component 30 and a detachable component 31. The pre-embedded component 30 is integrally cast and connected to the diaphragm wall 1. The detachable component 31 is used to install the steel support 2. The detachable component 31 and the pre-embedded component 30 are detachably connected by several bolts 32.

[0022] Specifically, refer to Figure 1 and Figure 3The embedded component 30 includes a first steel plate 300, a plurality of shear supports 301 and a plurality of anchor bars 302. The first steel plate 300 is embedded in the surface of the diaphragm wall 1, and the plurality of shear supports 301 and anchor bars 302 are cast in the diaphragm wall 1. The first steel plate 300 is welded to the plurality of shear supports 301 and anchor bars 302. That is, the embedded component 30 consisting of the first steel plate 300, the plurality of shear supports 301 and the plurality of anchor bars 302 is first welded into a whole, and then the shear supports 301 and anchor bars 302 of the embedded component 30 are fixed into the casting template of the diaphragm wall 1 before the diaphragm wall 1 is cast, so that the embedded component 30 and the diaphragm wall 1 form a whole.

[0023] Reference Figure 3 The detachable component 31 includes a second steel plate 310 and a diagonal brace base 311. The first steel plate 300 and the second steel plate 310 are detachably connected by a number of bolts 32. During the assembly of the detachable component 31 with the pre-embedded component 30, the bolts 32 serve both positioning and fastening functions. The diagonal brace base 311 is welded to the second steel plate 310, and the steel support 2 is installed on the diagonal brace base 311.

[0024] In this utility model, the first steel plate 300 is securely installed on the diaphragm wall 1 by using a combination of shear-resistant stool 301 and anchor bar 302. Compared with the method of fixing the first steel plate 300 only with anchor bar 302, the combination of shear-resistant stool 301 and anchor bar 302 can significantly improve the contact and connection area between the entire embedded component 30 and the diaphragm wall 1 during pouring, and increase the reliability of the connection between the embedded component 30 and the diaphragm wall 1.

[0025] In addition, the first steel plate 300 of the steel shoe 3 is embedded in the diaphragm wall 1. The first steel plate 300 and the second steel plate 310 are positioned and fastened by bolts 32, so that the steel shoe 3 can be assembled. In this way, no construction gap will be generated between the steel shoe 3 structure and the diaphragm wall 1, and the supporting axial force can be effectively and evenly transmitted to the diaphragm wall 1.

[0026] In addition, since the first steel plate 300 and the shear support 301 and other pre-embedded components 30 have been pre-embedded in the diaphragm wall 1, only the detachable components 31 and other parts need to be installed when the steel shoe 3 is installed, reducing the amount of work; and the second steel plate 310 and the first steel plate 300 are positioned and fastened by bolts 32, ensuring reliable connection while making installation and disassembly convenient and improving construction efficiency.

[0027] In addition, during actual construction, multiple sets of the aforementioned steel shoe 3 and steel support 2 can be installed on the diaphragm wall 1. The coordinated working mode of multiple sets of force-bearing devices makes the force evenly distributed.

[0028] In addition, the detachable components 31 in the steel support 2 and steel shoe 3 of the above-mentioned force-bearing device can be disassembled and reused, which significantly improves resource utilization while ensuring construction quality, reflects the concept of green construction, and effectively solves the problem of resource waste.

[0029] Reference Figure 2 The area of ​​the first steel plate 300 is significantly larger than that of the second steel plate 310, which facilitates the installation and positioning of the detachable component 31.

[0030] Reference Figure 3 In the pre-embedded component 30, a number of anti-shear stools 301 are vertically and spacedly embedded in the diaphragm wall 1 on the back of the first steel plate 300, so that the first steel plate 300 can be firmly connected to the diaphragm wall 1 at all points; a number of anchor bars 302 are pre-embedded in the diaphragm wall 1 on both the upper and lower sides of each group of anti-shear stools 301, which improves the uniformity of the distribution of anchor bars 302 and anti-shear stools 301 and improves the reliability of the connection between the pre-embedded component 30 and the diaphragm wall 1.

[0031] The anti-shear bench 301 is composed of several welded steel plates, and the surface of the steel plates forms the contact surface with the concrete in the diaphragm wall 1.

[0032] In one embodiment, reference is made to Figure 3 The shear support stool 301 includes two sets of third steel plates 3010 arranged vertically. Both sets of third steel plates 3010 are welded obliquely to the back of the first steel plate 300, and the free ends of the two sets of third steel plates 3010 are welded together, so that the two sets of third steel plates 3010 in the shear support stool 301 form a V-shaped connection structure, which increases the contact and stress area between the shear support stool 301 and the diaphragm wall 1 during pouring, so as to further increase the reliability of the steel shoe 3 installation.

[0033] Among them, the inclined base 311 is adapted to the tilt angle of the steel support 2, that is, the contact surface of the inclined base 311 supporting the steel support 2 is inclined.

[0034] Reference Figure 3 In one embodiment, the diagonal brace base 311 includes two sets of fourth steel plates 3110 welded to the second steel plate 310, and the free ends of the two sets of fourth steel plates 3110 are welded together to form a V-shaped connection structure.

[0035] Among them, the two sets of fourth steel plates 3110 inside the diagonal brace base 311 are welded together perpendicularly to each other.

[0036] In addition, steel ribs 3111 are welded to the area enclosed by the two sets of second steel plates 310 and the two sets of fourth steel plates 3110, as shown in the reference. Figure 2 In the diagonal bracing base 311, two sets of steel ribs 3111 are arranged in parallel to enhance the structural strength and stability of the diagonal bracing base 311.

[0037] Reference Figure 1 In order to achieve the diagonal bracing of the steel support 2, in the two sets of fourth steel plates 3110 of the diagonal bracing base 311, the upper set of fourth steel plates 3110 is supported at the lower end of the steel support 2.

[0038] The steel shoe 3 needs to bear the load from the steel support 2. The diagonal brace base 311 supporting the steel support 2 transmits the above load. Therefore, several bolts 32 are arranged on the first steel plate 300 on the upper and lower sides of the diagonal brace base 311 so that the load transmitted by the diagonal brace base 311 can be transmitted to the embedded component 30 and the diaphragm wall 1 through several bolts 32.

[0039] In addition, refer to Figure 1 and Figure 2 Below the diagonal brace base 311, there is also an anti-slip rib 33, which is welded to the second steel plate 310 to improve the reliability of the entire steel shoe 3 installation structure and reduce the risk of instability of the steel shoe 3 support system.

[0040] Among them, reference Figure 3 The upper contour of the anti-slip rib 33 is adapted to the lower contour of the bracing base 311. The upper end of the anti-slip rib 33 has a set of inclined surfaces that match the slope of the fourth steel plate 3110 on the lower side inside the bracing base 311. The upper inclined surface of the anti-slip rib 33 is welded to the fourth steel plate 3110 at the lower end of the bracing base 311.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A detachable diaphragm wall diagonal bracing device, comprising a diaphragm wall and a steel support, wherein the diaphragm wall and the steel support are connected by a steel shoe, characterized in that: The steel boot includes an embedded component and a detachable component; wherein, the embedded component includes a first steel plate, a plurality of shear supports and a plurality of anchor bars, the first steel plate is embedded in the surface of the diaphragm wall, and the first steel plate is welded to the plurality of shear supports and the plurality of anchor bars cast in the diaphragm wall; the detachable component includes a second steel plate, the first steel plate and the second steel plate are detachably connected by a plurality of bolts, and the steel support is installed on the detachable component.

2. The detachable diaphragm wall diagonal bracing device according to claim 1, characterized in that, Several of the shear-resistant stools are vertically and spaced apart within the diaphragm wall on the back of the first steel plate.

3. The detachable diaphragm wall diagonal bracing device according to claim 2, characterized in that, Several anchor bars are pre-embedded in the diaphragm walls on both sides of each set of shear-resistant stools.

4. The detachable diaphragm wall diagonal bracing device according to claim 1, characterized in that, The anti-shear stool includes two sets of third steel plates arranged vertically. Both sets of third steel plates are welded obliquely to the back of the first steel plate, and the free ends of the two sets of third steel plates are welded together.

5. The detachable diaphragm wall diagonal bracing device according to any one of claims 1 to 4, characterized in that, The detachable assembly also includes a diagonal brace base welded to the second steel plate, and the steel support is disposed on the diagonal brace base.

6. The detachable diaphragm wall diagonal bracing device according to claim 5, characterized in that, The inclined support base includes two sets of fourth steel plates welded to the second steel plate. The free ends of the two sets of fourth steel plates are welded together. A steel rib plate is also welded to the area enclosed between the second steel plate and the two sets of fourth steel plates. In the two sets of the fourth steel plates, the upper set of the fourth steel plates is supported at the lower end of the steel support.

7. The detachable diaphragm wall diagonal bracing device according to claim 5, characterized in that, Several of the bolts are arranged on the first steel plates on the upper and lower sides of the diagonal brace base.

8. The detachable diaphragm wall diagonal bracing device according to claim 5, characterized in that, The diagonal brace base is further supported by an anti-slip rib, which is welded to the second steel plate.

9. The detachable diaphragm wall diagonal bracing device according to claim 8, characterized in that, The upper contour of the anti-slip rib plate is adapted to the lower contour of the inclined base, and the upper contour of the anti-slip rib plate is welded to the lower contour of the inclined base.

10. The detachable diaphragm wall diagonal bracing device according to claim 6, characterized in that, The two sets of fourth steel plates within the diagonal brace base are welded together perpendicularly to each other.

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