Supporting structure replacing support construction device and construction method

Abstract

The application discloses a supporting structure replacement support construction device and a construction method. The construction device comprises a mounting plate, a support beam, a support plate, an adjustable support assembly, a surrounding clasp, an inclined support and a surrounding backing plate. The construction method comprises the following steps: mounting the mounting plate on an outer wall; connecting one end of the support beam with the mounting plate and connecting the other end of the support beam with the support plate; connecting the support plate with one end of the adjustable support assembly; adjusting the extension amount of the adjustable support assembly, supporting and fixing the other end of the adjustable support assembly on the surrounding structure through the surrounding clasp; adjusting the position of the inclined support hinged on both sides of the support beam, supporting and fixing the other end of the inclined support on the surrounding structure through the surrounding backing plate; and the adjustable support assembly and the inclined support jointly form a replacement support structure. The application has the advantages that: the on-site construction operation is facilitated, the labor amount is reduced, the whole device is flexible to disassemble and assemble, can be repeatedly used, can meet the support requirements when the replacement supports have different intervals, and the applicability of the device is improved.

Description

Technical Field

[0001] This invention belongs to the field of building foundation pit construction technology, specifically relating to a support structure replacement construction device and construction method. Background Technology

[0002] With the development of urban construction and the increase in the number and height of high-rise buildings, the requirement for foundation depth is also showing an increasingly deeper trend. However, in densely built-up urban areas, due to the influence of the surrounding environment and site limitations, it is impossible to slope the foundation pit during excavation. Under such circumstances, another foundation pit support method has emerged: reinforced concrete internal support beam foundation pit support. However, the methods for removing this type of internal support are not entirely the same. The more traditional approach is to use reinforced concrete replacement support beams as force transmission zones before removing the internal support. However, since the spacing between foundation pit support piles is mostly between 1m and 2m, using reinforced concrete replacement support beams as force transmission zones occupies a large space, resulting in too small gaps between support beams, which is not conducive to basement backfilling and cannot guarantee the construction quality of backfill soil. Furthermore, it cannot be disassembled and reused. Summary of the Invention

[0003] The purpose of this invention is to provide a support structure replacement construction device and method, which solves the problems of complex construction and non-reusability of existing support replacement methods.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A support structure replacement construction device includes a support beam, one end of which is provided with an installation plate, and the other end of which is provided with a support plate. The support plate is connected to one end of an adjustable support component, and the other end of the adjustable support component is provided with a retaining retaining ring. Both sides of the support beam are hinged to one end of a diagonal brace, and the other end of the diagonal brace is provided with a retaining pad.

[0006] Furthermore, the mounting plate is provided with bolt holes, and mounting bolts are installed in the bolt holes.

[0007] Furthermore, both the mounting plate and the support plate are rectangular plates, and the support beam is an I-beam.

[0008] Furthermore, the adjustable support assembly includes a telescopic sleeve and a telescopic rod. The telescopic sleeve is connected to the support plate, and the telescopic rod is telescopically fitted inside the telescopic sleeve and connected to the enclosure retaining ring.

[0009] Furthermore, the telescopic sleeve is provided with an adjusting thread, and an adjusting ring connected to the adjusting thread is fitted on the telescopic sleeve, with the adjusting ring engaging with the telescopic sleeve.

[0010] Furthermore, the enclosure retaining ring has a semi-circular structure.

[0011] Furthermore, hinge seats are provided on both sides of the support beam, and the hinge seats are hinged to the diagonal brace through hinge shafts.

[0012] Furthermore, the aforementioned diagonal brace is a straight rod.

[0013] A method for replacing supports in a support structure, using the aforementioned support replacement device, includes the following steps:

[0014] S01, Install the mounting plate on the exterior wall;

[0015] S02, connect one end of the support beam to the mounting plate and the other end of the support beam to the support plate;

[0016] S03, connect the support plate to one end of the adjustable support assembly;

[0017] S04, Adjust the extension and retraction of the adjustable support component, and fix the other end of the adjustable support component to the retaining structure at the edge of the pit through the retaining clip;

[0018] S05, adjust the position of the diagonal braces on both sides of the hinged support beam, and fix the other end of the diagonal brace to the enclosure structure through the enclosure pad plate;

[0019] S06, the adjustable support component in the middle and the diagonal braces on both sides together form a stable support structure.

[0020] Furthermore, in S02, the selection of the cross-sectional dimensions of the supporting beam I-beam is determined based on the distance between the retaining piles and the outer wall: if the distance is ≤2.5m, 30a# I-beams are used; if the distance is 2.5m ≤ distance ≤4.0m, 40a# I-beams are used; if the distance is >4.0m, 30a# double I-beams are used.

[0021] The beneficial effects of this invention are:

[0022] (1) Steel structure is used to replace traditional reinforced concrete structure. The steel structure replacement support construction device is designed and manufactured in advance. It only needs to be installed and fixed on site, which facilitates on-site construction and reduces labor.

[0023] (2) The support replacement construction device can be flexibly disassembled and reassembled, and can be reused, thereby improving the utilization rate of the device and reducing construction costs.

[0024] (3) The support span of the adjustable support component can be adjusted to meet the support requirements when changing supports at different intervals, thereby improving the applicability of the device.

[0025] The aforementioned main solution of the present invention and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed by the present invention; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding the solution of the present invention, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected by the present invention, and will not be exhaustively listed here. Attached Figure Description

[0026] Fig. 1 This is a three-dimensional structural view of the construction device of the present invention.

[0027] Fig. 2 This is a top view of the construction device of the present invention.

[0028] Fig. 3 This is a structural schematic diagram of the construction method of the present invention.

[0029] In the diagram: 1-Exterior wall, 2-Edge pit edge, 3-Enclosure structure, 4-Mounting plate, 5-Support beam, 6-Support plate, 7-Telescopic sleeve, 8-Telescopic rod, 9-Adjusting ring, 10-Enclosure retaining ring, 11-Mounting bolt, 12-Hinge seat, 13-Hinge shaft, 14-Diagonal brace, 15-Enclosure pad. Detailed Implementation

[0030] The following non-limiting examples are used to illustrate the present invention.

[0031] Example 1

[0032] refer to Figs. 1-3 As shown, a support structure replacement construction device includes an installation plate 4, a support beam 5, a support plate 6, an adjustable support assembly (telescopic sleeve 7, telescopic rod 8 and adjusting ring 9), a retaining retaining ring 10, an installation bolt 11, a hinge seat 12, a hinge shaft 13, a diagonal brace 14 and a retaining retaining pad 15.

[0033] Mounting plate 4 is a rectangular plate used to connect with support beam 5 to fix it to the exterior wall 1. Specifically, mounting plate 4 is provided with bolt holes, and mounting bolts 11 (expansion bolts) are installed in the bolt holes, so that mounting plate 4 can be firmly attached to exterior wall 1.

[0034] The support beam 5 is an I-beam, and its cross-sectional dimensions and shape are selected based on the support strength. A mounting plate 4 is welded to one end of the I-beam, and a support plate 6 is welded to the other end. The support plate 6 is a rectangular plate and serves as a transition connection between the support beam 5 and the adjustable support assembly.

[0035] The support plate 6 is connected to one end of the adjustable support assembly, which can adjust its support distance to ensure a tightening effect. Specifically, the adjustable support assembly includes a telescopic sleeve 7 and a telescopic rod 8. The telescopic sleeve 7 is welded to the support plate 6, and the telescopic rod 8 is telescopically fitted inside the telescopic sleeve 7. The telescopic rod 8 is welded to the retaining ring 10. That is, the support distance is adjusted through the telescopic movement of the telescopic sleeve 7 and the telescopic rod 8.

[0036] The telescopic sleeve 8 has an adjusting thread on its outer circumference. An adjusting ring 9 is fitted on the telescopic sleeve 8 and is threadedly connected to the adjusting thread. The adjusting ring 9 is engaged with the telescopic sleeve 7. By turning the adjusting ring 9, the position of the adjusting ring 9 on the telescopic sleeve 8 is changed, thereby changing the relative distance between the telescopic sleeve 7 and the telescopic sleeve 8.

[0037] The other end of the adjustable support component is provided with a retaining ring 10, which is preferably a semi-circular structure to achieve close support with the retaining structure 3 (retaining pile), ensuring that the adjustable support component does not shift when acting on a certain retaining pile, thus achieving stable support. Similarly, the retaining ring 10 can also be other shapes to match the retaining pile structure.

[0038] Both sides of the support beam 5 are hinged to one end of the diagonal brace 14. Specifically, each side of the support beam 5 is welded with a hinge seat 12, which is hinged to the diagonal brace 14 via a hinge shaft 13, enabling the diagonal brace 14 to hinge and rotate. The diagonal brace 14 is a straight rod, and the other end of the diagonal brace 14 is equipped with a protective pad 15. After the adjustable support assembly is stabilized, the diagonal brace 14 is flipped inward and tightened between the enclosure structure 3 and the support beam 5, forming a triangular support structure together with the adjustable support assembly, further improving the overall support stability.

[0039] The steel structure replacement support device should be installed after the main structure concrete of the replacement support layer has reached the design strength. After installation, the ring brace (the original support structure) should be removed. After the backfill soil in the trench reaches the bottom of the support beam (I-beam), the replacement support structure can be dismantled and the main construction can proceed.

[0040] Example 2

[0041] refer to Figs. 1-3 As shown, a method for replacing the support structure is adopted, using the support structure replacement construction device of Example 1, including the following steps: S01, using mounting bolts 11 (expansion bolts) to install the mounting plate 4 (6mm thick) on the outer wall 1.

[0042] S02, weld one end of the support beam 5 to the mounting plate 4, and weld the other end of the support beam 5 to the support plate 6. The support beam 5 (I-beam) is welded to the mounting plate 4 (steel plate) and the support plate 6 (steel plate) on all four sides. The fillet weld leg size should not be less than 6mm.

[0043] The selection of the cross-sectional dimensions of the supporting beam 5 I-beams is determined based on the distance between the retaining piles and the outer wall: if the distance is ≤2.5m, use 30a# I-beams; if the distance is ≤2.5m and ≤4.0m, use 40a# I-beams; if the distance is >4.0m, use 30a# double I-beams.

[0044] S03, weld the support plate 6 to one end of the adjustable support assembly (telescopic sleeve 7).

[0045] S04, adjust the extension and retraction of the adjustable support component (rotate the adjustment ring 9), and fix the other end of the adjustable support component (telescopic sleeve 8) to the retaining structure 3 at the edge of the pit 2 through the retaining ring 10.

[0046] S05, adjust the position of the inclined braces 14 on both sides of the support beam 5, push the inclined braces 14 inward, and fix the other end of the inclined braces 14 to the enclosure structure 3 through the enclosure pad 15.

[0047] S06, the adjustable support component in the middle and the diagonal braces 14 on both sides together form a stable support structure.

[0048] The foregoing basic examples and their further alternative examples of the present invention can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed by the present invention. In the present invention, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0049] 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 within the protection scope of the present invention.

Claims

1. A support structure replacement construction device, comprising a support beam (5), characterized in that: The support beam (5) is provided with a mounting plate (4) at one end and a support plate (6) at the other end. The support plate (6) is connected to one end of the adjustable support assembly. The other end of the adjustable support assembly is provided with a retaining ring (10). Both sides of the support beam (5) are hinged to one end of the diagonal brace (14). The other end of the diagonal brace (14) is provided with a retaining pad (15). The mounting plate (4) is provided with bolt holes, and mounting bolts (11) are provided in the bolt holes; The mounting plate (4) and the support plate (6) are both rectangular plates, and the support beam (5) is an I-beam; The adjustable support assembly includes a telescopic sleeve (7) and a telescopic rod (8). The telescopic sleeve (7) is connected to the support plate (6), and the telescopic rod (8) is telescopically fitted inside the telescopic sleeve (7). The telescopic rod (8) is connected to the enclosure retaining ring (10). The telescopic sleeve (8) is provided with an adjusting thread, and an adjusting ring (9) connected to the adjusting thread is sleeved on the telescopic sleeve (8). The adjusting ring (9) is engaged with the telescopic sleeve (7). The aforementioned enclosure ring (10) has a semi-circular structure; The support beam (5) is provided with hinge seats (12) on both sides, and the hinge seats (12) are hinged to the diagonal brace (14) through the hinge shaft (13); The aforementioned diagonal brace (14) is a straight rod.

2. A method for replacing supports in a support structure, using the support replacement construction device described in claim 1, characterized in that, The steps include the following: S01, install the mounting plate (4) on the outer wall (1); S02, connect one end of the support beam (5) to the mounting plate, and connect the other end of the support beam (5) to the support plate (6); S03, connect the support plate (6) to one end of the adjustable support assembly; S04, adjust the extension and retraction of the adjustable support component, and fix the other end of the adjustable support component to the retaining structure (3) at the edge (2) of the pit by means of the retaining ring (10); S05, adjust the position of the diagonal braces (14) hinged on both sides of the support beam (5), and fix the other end of the diagonal braces (14) to the enclosure structure (3) through the enclosure pad (15); S06, the adjustable support component in the middle and the diagonal braces (14) on both sides together form a stable support structure.

3. The method for replacing supports in a support structure according to claim 2, characterized in that: The selection of the cross-sectional dimensions of the S02 support beam (5) is determined according to the distance between the retaining pile and the outer wall: if the distance is ≤2.5m, use 30a# I-beam; if the distance is ≤2.5m and ≤4.0m, use 40a# I-beam; if the distance is >4.0m, use 30a# double I-beam.

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