A temporary underpinning steel support structure for a demolition and reconstruction project

Abstract

The utility model provides a kind of temporary underpinning steel support structure of demolition reconstruction project, belong to building engineering technical field, its structure includes: support column, the top of support column is equipped with angle adjusting mechanism;The angle adjusting mechanism includes fixed seat, the fixed seat is symmetrically arranged, and bottom is fixedly installed on the upper surface of support groove, fixed seat is symmetrically provided with fixed hole, fixed hole is fixedly connected with respective connecting shaft, the other end of connecting shaft is fixedly connected with respective sliding bearing, sliding bearing is slidably connected with circular arc sliding groove, circular arc sliding groove is mirror image type and set in the inside of rotary adjusting plate, ensure that supporting point force is uniform, avoid local stress concentration, greatly improve the stability and carrying capacity of support structure, reduce the risk of structural instability, ensure the safe operation of demolition reconstruction project.

Description

Technical Field

[0001] This utility model relates to a temporary steel support structure for demolition and renovation projects, belonging to the field of building engineering technology. Background Technology

[0002] In the ongoing process of urban construction, the scale and number of building demolition and renovation projects have shown a significant growth trend. On the one hand, existing buildings, due to their age, increasingly exhibit problems such as structural aging and unreasonable functional layout, making it difficult to meet the requirements of modern society for building safety, functionality, and comfort, thus urgently requiring demolition and renovation. On the other hand, adjustments to urban planning, efficient use of land resources, and the upgrading of architectural styles have also prompted a large number of buildings to be included in the ranks of demolition and renovation.

[0003] Traditional temporary steel support structures exhibit numerous limitations when facing demolition and renovation projects. Regarding the support plates, most traditional structures have fixed angles and lack effective adjustment mechanisms. In actual construction, the surface morphology, stress direction, and site conditions of the supported structure are often complex and variable. For example, when demolishing or renovating irregularly shaped buildings or old buildings that have undergone multiple renovations, achieving an ideal fit between the support structure and the supported structure is difficult. Fixed-angle support plates cannot adapt to such complex conditions, easily leading to uneven stress distribution at the support points and severe local stress concentration. This not only reduces the load-bearing efficiency of the support structure and increases the risk of structural instability but may also cause unnecessary damage to the supported structure, hindering the smooth progress of the demolition and renovation project.

[0004] Furthermore, during the installation of traditional support structures, if the angle of the support plate does not match the actual requirements, a significant amount of time and manpower is often required for on-site adjustments. This may even necessitate the reprocessing or replacement of parts of the structure, which undoubtedly greatly impacts construction progress and increases project costs. Moreover, as demolition and renovation work progresses during construction, the stress state of the structure continuously changes. Fixed-angle support plates cannot dynamically adjust their angles according to real-time working conditions, making it difficult to ensure the support structure remains in optimal working condition at all times. Utility Model Content

[0005] The purpose of this utility model is to provide a temporary steel support structure for demolition and renovation projects. By installing an angle adjustment mechanism with the support column, the temporary steel support structure has height and angle adjustment functions, thereby improving construction efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a temporary steel support structure for demolition and renovation projects, comprising:

[0007] A support column, the top of which is equipped with an angle adjustment mechanism;

[0008] The angle adjustment mechanism includes a fixed base, which is symmetrically arranged and its bottom is fixedly installed on the upper surface of the support groove. The fixed base is provided with symmetrical fixed holes, which are fixedly connected to their respective connecting shafts. The other end of the connecting shaft is fixedly connected to its respective sliding bearing. The sliding bearing is slidably connected to the arc-shaped sliding groove, which is mirror-shaped and arranged inside the rotating adjustment plate.

[0009] As a further technical solution of this utility model, two connecting plates are provided between the two rotating adjustment plates. The connecting plates are distributed vertically, with a joint bearing at the bottom of the upper connecting plate and a cylinder moving groove on the lower connecting plate.

[0010] As a further technical solution of this utility model, the top of the two rotating adjustment plates is provided with a support plate; the joint bearing is rotatably connected to the end of the telescopic cylinder, the bottom of the telescopic cylinder is fixedly connected to the second connecting plate, and the two ends of the second connecting plate are respectively connected to the fixed seats arranged symmetrically.

[0011] As a further technical solution of this utility model, the bottom of the support groove is fixedly connected to the fixing plate, the fixing plate is connected to the inner support column by fixing bolts, and the inner support column is provided with multiple positioning holes in a rectangular array.

[0012] As a further technical solution of this utility model, the inner support column and the outer support column are slidably connected, the upper end of the outer support column is provided with a fixing pin, the fixing pin is movably connected with the positioning hole through the opening left at the upper end of the outer support column, and the bottom of the outer support column is provided with multiple support feet.

[0013] The beneficial effects of this utility model are:

[0014] 1. In use, the angle adjustment mechanism achieves precise angle adjustment of the support plate through the coordinated work of components such as the telescopic cylinder, joint bearing, connecting plate, and rotating adjustment plate. When demolishing or renovating irregularly shaped buildings or existing buildings with uneven surfaces, it can ensure that the support plate fits tightly with the supported structure, ensuring uniform force distribution at the support points, avoiding local stress concentration, greatly improving the stability and load-bearing capacity of the support structure, reducing the risk of structural instability, and ensuring the safe progress of demolition and renovation projects.

[0015] 2. In this utility model, when adjusting the height, the inner support column and the outer support column cooperate with each other, and the setting of positioning holes and fixing pins allows the support column to flexibly adjust its height. It can be applied to building demolition and renovation projects with different floor heights. Compared with the traditional fixed height support structure, there is no need to carry out complicated cutting or welding on site to adapt to the height, saving construction time and labor costs and improving construction efficiency.

[0016] 3. In demolition and renovation projects, when facing the situation of supporting the top of a plane, the angle adjustment mechanism can be disassembled and separated from the support column. By using the support groove on the support column to fit against the top of the plane, the steel replacement operation on the top of the plane can be successfully completed.

[0017] It facilitates quick assembly and disassembly on the construction site, reducing project costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This utility model Figure 1 Top view.

[0020] Figure 3 This utility model Figure 2 A bottom view.

[0021] Figure 4 This utility model Figure 1 Front view.

[0022] Figure 5 This utility model Figure 4 Front view.

[0023] Figure 6 This utility model Figure 4 A magnified view of a portion of the image.

[0024] In the diagram: 1-support column, 2-angle adjustment mechanism;

[0025] 11-Support foot, 12-Outer support column, 13-Inner support column, 14-Fixing pin, 15-Positioning hole, 16-Fixing bolt, 17-Fixing plate, 18-Support groove;

[0026] 21-Fixed seat, 22-Fixed hole, 23-Connecting shaft, 24-Sliding bearing, 25-Circular arc groove, 26-Rotation adjustment plate, 27-Connecting plate one, 28-Cylinder moving groove, 29-Support plate, 210-Telescopic cylinder, 211-Connecting plate two, 212-Joint bearing. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 In this embodiment of the utility model, a temporary steel support structure for demolition and renovation projects includes a support column 1, and an angle adjustment mechanism 2 is installed on the top of the support column 1.

[0029] The angle adjustment mechanism 2 includes a fixed base 21, which is symmetrically arranged and its bottom is fixedly installed on the upper surface of the support groove 18. The fixed base 21 is symmetrically provided with fixed holes 22, which are fixedly connected to their respective connecting shafts 23. The other end of the connecting shafts 23 is fixedly connected to their respective sliding bearings 24. The sliding bearings 24 are slidably connected to the arc-shaped sliding grooves 25, which are mirror-shaped and arranged inside the rotating adjustment plate 26.

[0030] Two connecting plates 27 are provided between the two rotating adjustment plates 26. The connecting plates 27 are distributed vertically. The bottom of the upper connecting plate 27 is provided with a joint bearing 212, and the lower connecting plate 27 has a cylinder moving groove 28.

[0031] The top of the two rotating adjustment plates 26 is provided with a support plate 29; the joint bearing 212 is rotatably connected to the end of the telescopic cylinder 210, the bottom of the telescopic cylinder 210 is fixedly connected to the connecting plate 211, and the two ends of the connecting plate 211 are respectively connected to the fixed seats 21 arranged symmetrically.

[0032] By adopting the above technical solution, during use, the angle adjustment mechanism 2 achieves precise angle adjustment of the support plate 29 through the coordinated work of components such as the telescopic cylinder 210, the joint bearing 212, the connecting plate 27, and the rotating adjustment plate 26. When demolishing or renovating irregularly shaped buildings or existing buildings with uneven structural surfaces, the support plate 29 can be tightly fitted to the supported structure, ensuring uniform force distribution at the support points, avoiding local stress concentration, greatly improving the stability and load-bearing capacity of the support structure, reducing the risk of structural instability, and ensuring the safe progress of the demolition and renovation project.

[0033] In this embodiment, the bottom of the support groove 18 is fixedly connected to the fixing plate 17, and the fixing plate 17 is connected to the inner support column 13 by fixing bolts 16. The inner support column 13 is provided with multiple positioning holes 15 in a rectangular array.

[0034] The inner support column 13 is slidably connected to the outer support column 12. The upper end of the outer support column 12 is provided with a fixing pin 14. The fixing pin 14 is movably connected to the positioning hole 15 through the opening left at the upper end of the outer support column 12. The bottom of the outer support column 12 is provided with multiple support feet 11.

[0035] By adopting the above technical solution, when adjusting the height, the inner support column 13 and the outer support column 12 cooperate with each other, and the positioning hole 15 and the fixing pin 14 are set so that the support column 1 can flexibly adjust the height. It can be applied to building demolition and renovation projects with different floor heights. Compared with the traditional fixed height support structure, there is no need to carry out complicated cutting or welding on site to adapt to the height, which saves construction time and labor costs and improves construction efficiency.

[0036] In demolition and renovation projects, when facing the situation of supporting the top of the plane, the angle adjustment mechanism 2 can be disassembled and separated from the support column 1. The support groove 18 on the support column 1 can be used to fit with the top of the plane, so that the steel replacement operation of the top of the plane can be completed smoothly. This facilitates quick assembly and disassembly on the construction site and reduces project costs.

[0037] The working principle of this utility model is as follows: When the telescopic cylinder 210 is activated, its end is rotatably connected to the spherical bearing 212. When the telescopic cylinder 210 extends or retracts, it drives the spherical bearing 212 to move. Since the spherical bearing 212 is located at the bottom of the upper connecting plate 27, the upper connecting plate 27 moves. The two rotating adjustment plates 26 are connected by the two connecting plates 27 distributed vertically. Under this drive, the rotating adjustment plates 26 will rotate around the connecting shaft 23. The connecting shaft 23 is fixed to the fixing hole 22 on the fixed seat 21, and the other end is fixed to the sliding bearing 24. The sliding bearing 24 slides in the arc groove 25 on the inner side of the rotating adjustment plate 26, thereby ensuring that the rotating adjustment plate 26 rotates smoothly. The support plate 29 at the top of the two rotating adjustment plates 26 changes its angle accordingly to fit the different angle surfaces of the supported structure.

[0038] In use, the angle adjustment mechanism 2 achieves precise angle adjustment of the support plate 29 through the coordinated work of components such as the telescopic cylinder 210, the joint bearing 212, the connecting plate 27, and the rotating adjustment plate 26. When demolishing or renovating irregularly shaped buildings or existing buildings with uneven structural surfaces, it can ensure that the support plate 29 fits tightly with the supported structure, ensuring uniform force distribution at the support point, avoiding local stress concentration, greatly improving the stability and load-bearing capacity of the support structure, reducing the risk of structural instability, and ensuring the safe progress of the demolition and renovation project.

[0039] The inner support column 13 can slide up and down inside the outer support column 12. The upper end of the outer support column 12 is provided with a fixing pin 14. When the inner support column 13 is adjusted to a suitable height, the fixing pin 14 is passed through the opening on the outer support column 12 and cooperates with the positioning holes 15 distributed in a rectangular array on the inner support column 13 to fix the overall height of the support column, so as to adapt to the requirements of support height in different demolition and renovation scenarios.

[0040] When adjusting the height, the inner support column 13 and the outer support column 12 cooperate with each other, and the positioning hole 15 and the fixing pin 14 are set so that the support column 1 can flexibly adjust the height. It can be applied to building demolition and renovation projects with different floor heights. Compared with the traditional fixed height support structure, there is no need to carry out complicated cutting or welding on site to adapt to the height, which saves construction time and labor costs and improves construction efficiency.

[0041] In demolition and renovation projects, when facing the situation of supporting the top of the plane, the angle adjustment mechanism 2 can be disassembled and separated from the support column 1. The support groove 18 on the support column 1 can be used to fit with the top of the plane, so that the steel replacement operation of the top of the plane can be completed smoothly. This facilitates quick assembly and disassembly on the construction site and reduces project costs.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A temporary steel support structure for demolition and renovation projects, characterized in that: include: A support column, the top of which is equipped with an angle adjustment mechanism; The angle adjustment mechanism includes a fixed base, which is symmetrically arranged and its bottom is fixedly installed on the upper surface of the support groove. The fixed base is provided with symmetrical fixed holes, which are fixedly connected to their respective connecting shafts. The other end of the connecting shaft is fixedly connected to its respective sliding bearing. The sliding bearing is slidably connected to the arc-shaped sliding groove, which is mirror-shaped and arranged inside the rotating adjustment plate.

2. The temporary steel support structure for demolition and renovation projects according to claim 1, characterized in that: Two connecting plates are provided between the two rotating adjustment plates. The connecting plates are distributed vertically. The bottom of the upper connecting plate is provided with a joint bearing, and the lower connecting plate has a cylinder movement groove.

3. The temporary steel support structure for demolition and renovation projects according to claim 2, characterized in that: The top of the two rotating adjustment plates is provided with a support plate; the joint bearing is rotatably connected to the end of the telescopic cylinder, the bottom of the telescopic cylinder is fixedly connected to the second connecting plate, and the two ends of the second connecting plate are respectively connected to the fixed seats arranged symmetrically.

4. The temporary steel support structure for demolition and renovation projects according to claim 3, characterized in that: The bottom of the support groove is fixedly connected to the fixing plate, and the fixing plate is connected to the inner support column by fixing bolts. The inner support column is provided with multiple positioning holes in a rectangular array.

5. A temporary steel support structure for demolition and renovation projects according to claim 4, characterized in that... According to the plan, the inner support column and the outer support column are slidably connected. The upper end of the outer support column is provided with a fixing pin. The fixing pin is movably connected to the positioning hole through the opening left at the upper end of the outer support column. The bottom of the outer support column is provided with multiple support feet.

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