Steel structure support changing connecting device

Abstract

The utility model discloses a steel structure support changing connecting device, and particularly relates to the field of constructional engineering, the steel structure support changing connecting device comprises I-shaped steel, the bottom end of the I-shaped steel is fixedly connected with a supporting mechanism, the supporting mechanism comprises a connecting plate, the upper end of the connecting plate is provided with a welding groove, and the bottom end of the connecting plate is fixedly connected with a first fixing claw. A second fixing claw is movably connected to the outer wall of the first fixing claw, and a fixing assembly is connected to the interior of the second fixing claw in a penetrating mode. The supporting mechanism is convenient to recycle, the steel structure supporting size is fixed, construction is convenient, the device can be suitable for foundation pit engineering under various conditions, the steel structure support changing stability is high, the shear capacity is high, the force load transferring effect is good, meanwhile, the foundation pit monitoring precision can be high through the fixing assembly, the steel structure support changing and dismounting are convenient, and the construction cost is low. And the material utilization rate is increased, green construction and resource recycling are achieved, and the stability of the foundation pit in the basement construction stage is improved.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, and more specifically, to a steel structure replacement bracing connection device. Background Art

[0002] With the continuous development of the construction industry, the depth and area of foundation pits are getting larger and larger, and the requirements for the stability and support methods of foundation pits are also getting higher and higher. At the same time, there are more and more internal support methods and more and more buildings in cities. Deciding the internal support form according to the project characteristics and geological exploration report is the core.

[0003] After retrieval, the existing patent (publication number: CN219033234U) discloses a terrain-restricted deep foundation pit reverse steel inclined bracing support system belonging to the technical field of foundation pit support. In this system, the inclined bracing reaction device is arranged in the foundation pit. The bottom of the inclined bracing is connected to the top of the inclined bracing reaction device. The inner side of the top of the retaining structure is provided with a collar beam, and the top of the inclined bracing is connected to the collar beam. The replacement bracing force transmission belt is connected between the outer wall of the basement and the inner side of the retaining structure, and the elevation of the replacement bracing force transmission belt is the same as that of the basement floor slab. The floor slab force transmission belt is connected between the basement floor slab and the inner side of the retaining structure, and the elevation of the floor slab force transmission belt is the same as that of the basement floor slab. The replacement bracing force transmission belt and the floor slab force transmission belt are used to transfer the soil lateral pressure received by the retaining structure to the newly built structure of the basement, creating conditions for removing the steel inclined bracing. The replacement bracing force transmission belt and the floor slab force transmission belt are removed after the newly built structure of the basement is completed and the backfill soil in the basement fat pocket is compacted, so as to prevent the steel inclined bracing from occupying the building space and affecting the use function. The inventor found the following problems in the process of implementing the present utility model:

[0004] The existing replacement bracing technology is to set reaction piers and concrete replacement bracings between the basement floor slab and the capping beam. The use of concrete replacement bracings is applicable to the construction condition at the foundation stage when the outer wall of the basement has not been constructed yet. However, its construction period is long, the measure cost is high, and the concrete support needs to be cut after replacement bracing and cannot be reused. Therefore, a support mechanism is needed for recycling; at the same time, the above-cited patent document also does not propose a relevant solution to solve the recycling problem in construction engineering.

[0005] Therefore, a steel structure replacement bracing connection device is proposed for the above problems. Summary of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a steel structure replacement bracing connection device to solve the problems raised in the above background art.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a steel structure bracing replacement connection device, comprising an I-beam, wherein the bottom end of the I-beam is fixedly connected to a support mechanism, wherein the support mechanism comprises a connecting plate, wherein the upper end of the connecting plate is provided with a welding groove, the bottom end of the connecting plate is fixedly connected to a first fixing claw, and the outer wall of the first fixing claw is movably connected to a second fixing claw;

[0008] A fixing assembly is connected through the interior of the second fixing claw, the bottom end of the second fixing claw is fixedly connected to a limit plate, the bottom end of the limit plate is fixedly connected to a diagonal brace, and the connecting plate and the I-beam are welded.

[0009] Preferably, the bottom end of the I-beam is movably connected to a bottom plate, the top of the bottom plate is fixedly connected to a side plate, the inner wall of the side plate is fixedly connected to a crossbeam steel bar, the outer wall of the crossbeam steel bar is fixedly connected to a vertical beam steel bar, and the inner wall of the I-beam is fixedly connected to a reinforced plate.

[0010] Preferably, the fixing assembly includes a fixing shaft, and a stress sensor is fixedly connected to the upper surface of the fixing shaft.

[0011] Preferably, a threaded hole is formed at one end of the fixed shaft, and a bolt is threadedly connected to the inner wall of the threaded hole.

[0012] Preferably, the bolt passes through the interior of the cover plate, and the cover plate is movably mounted on the outer wall of the second fixing claw.

[0013] Preferably, the bottom end of the I-beam and the upper end of the connecting plate are welded together via a welding groove, and the size of the weld foot at the welding groove is not less than 50 mm.

[0014] Preferably, the diameter of the diagonal brace is 600 mm, and the length of the diagonal brace is 30 m.

[0015] Preferably, the thickness of the stiffening plate is 30 mm, and the stiffening plate is welded to both sides of the I-beam.

[0016] The technical effects and advantages of this utility model are:

[0017] 1. Compared with the existing technology, this steel structure support replacement connection device is easy to recycle through the support mechanism, the steel structure support size is fixed, the construction is convenient, and it can be applied to foundation pit projects under various conditions. The steel structure support replacement has high stability, strong shear resistance, and excellent load transmission effect. At the same time, the fixed components can monitor the foundation pit with high accuracy. At the same time, the steel structure support replacement is easy to dismantle and can be used for the next step of turnover, thereby improving material utilization, playing a role in green construction and resource recycling, improving the stability of the foundation pit during the basement construction stage, and saving materials and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the support mechanism structure of the utility model.

[0020] Figure 3 This is a schematic diagram of the connection structure between the I-beam and the connecting plate of the utility model.

[0021] Figure 4 This is a schematic diagram of the fixing component structure of the utility model.

[0022] The reference numerals are: 1, I-beam; 2, support mechanism; 3, stiffening plate; 4, bottom plate; 5, cross beam steel bar; 6, vertical beam steel bar; 7, side plate; 201, connecting plate; 202, welding groove; 203, first fixing claw; 204, second fixing claw; 205, fixing component; 206, limiting plate; 207, diagonal brace; 2051, fixing shaft; 2052, stress sensor; 2053, threaded hole; 2054, bolt; 2055, cover plate. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As shown in the attached Figure 1 and Figure 2 A steel structure replacement bracing connection device, including an I-beam 1, the bottom end of the I-beam 1 is fixedly connected with a support mechanism 2, the support mechanism 2 includes a connecting plate 201, a welding groove 202 is opened at the upper end of the connecting plate 201, the bottom end of the connecting plate 201 is fixedly connected with a first fixing claw 203, and the outer wall of the first fixing claw 203 is movably connected with a second fixing claw 204;

[0026] A fixing component 205 penetrates through the inside of the second fixing claw 204, the bottom end of the second fixing claw 204 is fixedly connected with a limiting plate 206, the bottom end of the limiting plate 206 is fixedly connected with a diagonal brace 207, and the connecting plate 201 and the I-beam 1 are connected by welding.

[0027] Among them: The steel structure support has a fixed size, is convenient for construction, and can be applied to foundation pit projects under various conditions. The steel structure replacement support has high stability, strong shear resistance, excellent load transfer effect. At the same time, the fixing component 205 can achieve high precision for foundation pit monitoring. Meanwhile, the steel structure replacement support is convenient to demolish, can be recycled for the next step, improves the material utilization rate, realizes green construction and resource recycling, improves the stability of the foundation pit during the basement construction stage, and can save materials and protect the environment.

[0028] Embodiment 2

[0029] Based on Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods, as Figures 1 to 4 shown, and the details are described below:

[0030] As a preferred implementation method, the bottom end of the I-beam 1 is movably connected to the bottom plate 4, the upper surface of the bottom plate 4 is fixedly connected to the side plate 7, the inner wall of the side plate 7 is fixedly connected to the cross beam steel bar 5, the outer wall of the cross beam steel bar 5 is fixedly connected to the vertical beam steel bar 6, and the inner wall of the I-beam 1 is fixedly connected to the stiffening plate 3; further, first, the I-beam 1 is embedded in the bottom plate 4, then the stiffening plate 3 is welded inside the I-beam 1, then the cross beam steel bar 5 is welded to the stiffening plate 3, and the other end is welded to the side plate 7, and then the vertical beam steel bar 6 is tied to the vertical beam steel bar 6.

[0031] As a preferred implementation method, the fixing component 205 includes a fixing shaft 2051, and a stress sensor 2052 is fixedly connected to the upper surface of the fixing shaft 2051; further, the fixing shaft 2051 passes through the inside of the second fixing claw 204 and the first fixing claw 203 to fix the first fixing claw 203 and the second fixing claw 204, and at the same time, the welding groove 202 can detect the stress generated by the first fixing claw 203 and the second fixing claw 204.

[0032] As a preferred implementation method, a threaded hole 2053 is opened at one end of the fixing shaft 2051, and a bolt 2054 is threadedly connected to the inner wall of the threaded hole 2053; further, the bolt 2054 can be connected to the threaded hole 2053 for fixation.

[0033] As a preferred implementation method, the bolt 2054 passes through the inside of the cover plate 2055, and the cover plate 2055 is movably installed on the outer wall of the second fixing claw 204; further, the cover plate 2055 can limit the fixing shaft 2051 and can provide protection at the same time.

[0034] As a preferred embodiment, the bottom end of the I-beam 1 and the upper end of the connecting plate 201 are welded and connected through a welding groove 202, and the fillet weld size at the welding groove 202 is not less than 50 mm; further, the I-beam 1 and the connecting plate 201 can be welded together at the welding groove 202, and a fillet weld greater than 50 mm can provide a more stable connection.

[0035] As a preferred embodiment, the diameter of the diagonal brace 207 is 600 mm, and the length of the diagonal brace 207 is 30 m; further, the diagonal brace 207 is more stable during support and can bear more force.

[0036] As a preferred embodiment, the thickness of the stiffening plate 3 is 30 mm, and the stiffening plate 3 is welded to both sides of the I-beam 1; further, the stiffening plate 3 can support the I-beam 1 between the I-beams 1, preventing the I-beam 1 from deforming due to excessive stress and making the I-beam 1 more stable during use.

[0037] The working process of the present utility model is as follows: First, the I-beam 1 is embedded in the bottom plate 4, then the stiffening plate 3 is welded inside the I-beam 1, then the cross beam steel bar 5 is welded to the stiffening plate 3, and the other end is welded to the side plate 7. Then, the vertical beam steel bar 6 is tied to the vertical beam steel bar 6. After that, the connecting plate 201 is installed at the bottom of the I-beam 1, and then welding is carried out at the welding groove 202 to fix the I-beam 1 and the connecting plate 201 together. Then, pouring is carried out into the side plate 7. After pouring, the second fixing claw 204 and the first fixing claw 203 are placed crosswise, and then the fixing shaft 2051 is passed through the first fixing claw 203 and the second fixing claw 204. After that, the bolt 2054 is passed through the cover plate 2055 and the threaded hole 2053 for fixation. Then, the direction of the diagonal brace 207 can be adjusted for support, and during support, the stress sensor 2052 will detect the stress borne in real time. The above is the working principle of this steel structure replacement bracing connection device.

[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A steel structure replacement bracing connection device, comprising an I-beam (1), characterized in that: The bottom end of the I-beam (1) is fixedly connected with a support mechanism (2). The support mechanism (2) includes a connecting plate (201). A welding groove (202) is formed at the upper end of the connecting plate (201). The bottom end of the connecting plate (201) is fixedly connected with a first fixing claw (203). The outer wall of the first fixing claw (203) is movably connected with a second fixing claw (204). A fixing component (205) is connected through the interior of the second fixing claw (204). The bottom end of the second fixing claw (204) is fixedly connected with a limiting plate (206). The bottom end of the limiting plate (206) is fixedly connected with a diagonal brace (207). The connecting plate (201) and the I-beam (1) are connected by welding.

2. The steel structure replacement bracing connection device according to claim 1, characterized in that: The bottom end of the I-beam (1) is movably connected with a bottom plate (4). A side plate (7) is fixedly connected to the upper surface of the bottom plate (4). A cross beam steel bar (5) is fixedly connected to the inner wall of the side plate (7). A vertical beam steel bar (6) is fixedly connected to the outer wall of the cross beam steel bar (5). A stiffening plate (3) is fixedly connected to the inner wall of the I-beam (1).

3. The steel structure replacement bracing connection device according to claim 1, characterized in that: The fixing component (205) includes a fixing shaft (2051). A stress sensor (2052) is fixedly connected to the upper surface of the fixing shaft (2051).

4. The steel structure replacement bracing connection device according to claim 3, wherein: A threaded hole (2053) is formed at one end of the fixing shaft (2051). A bolt (2054) is threadedly connected to the inner wall of the threaded hole (2053).

5. The steel structure replacement bracing connection device according to claim 4, characterized in that: The bolt (2054) passes through the interior of a cover plate (2055). The cover plate (2055) is movably installed on the outer wall of the second fixing claw (204).

6. The steel structure replacement bracing connection device according to claim 5, wherein: The bottom end of the I-beam (1) and the upper end of the connecting plate (201) are connected by welding through the welding groove (202). The weld leg size at the welding groove (202) is not less than 50 mm.

7. A steel structure replacement bracing connection device according to claim 1, characterized in that: The diameter of the diagonal brace (207) is 600 mm, and the length of the diagonal brace (207) is 30 m.

8. The steel structure replacement bracing connection device according to claim 2, wherein: The thickness of the stiffening plate (3) is 30 mm, and the stiffening plate (3) is welded on both sides of the I-beam (1).

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