A basement structure roofing device

Abstract

This application discloses a basement structure backfilling device, belonging to the field of construction, used to solve the problem of how to improve the support quality and safety of basement structures. The basement structure backfilling device includes: a steel column, a support plate, a hydraulic jack, expansion bolts, and U-shaped reinforcing bars; the bottom of the steel column is used to connect to the bottom of the basement structure, and its top is fixedly connected to the support plate; the support plate is horizontally set, and the hydraulic jack is fixedly installed on the upper end of the support plate, with its plunger set vertically and fixedly connected to a connecting plate, which is fixedly connected to the top of the basement structure by expansion bolts; at least two U-shaped reinforcing bars are evenly arranged around the hydraulic jack, each including two parallel and vertically arranged vertical reinforcing bars, and a transverse reinforcing bar connected to the bottom of the two vertical reinforcing bars, the transverse reinforcing bar being welded to the support plate.

Description

Technical Field

[0001] This application relates to the field of construction, and in particular to a basement structure backfilling device. Background Technology

[0002] In the construction industry, with the continuous development of urban construction and the diversified needs of building functions, the business types and planning requirements of high-rise buildings often change. When the number of floors or functional layout of the upper high-rise structure needs to be adjusted, the existing basement structure connected to it often cannot meet the new load-bearing and usage requirements, so it must be reinforced and renovated. Among them, adding cast-in-place piles is a common reinforcement method. By adding cast-in-place piles under the basement floor slab, the load-bearing capacity and stability of the basement structure can be effectively improved.

[0003] Rotary drilling rigs play a crucial role in the construction of additional cast-in-place piles. However, due to site constraints, the rigs need to travel above the basement roof slab and, with the aid of a support platform, pass through two basement levels before finally penetrating to the bottom of the slab for pile foundation construction. This process poses a significant challenge to the safety and stability of the basement roof structure, and also places high demands on the safety of the rotary drilling rigs.

[0004] To protect the basement roof structure from damage during the movement and construction of rotary drilling rigs, and to ensure the safety of rotary drilling rig operations, effective support for the basement structure is essential. Currently, steel pipe jacks are a commonly used support tool for basement structures. However, in practical applications, steel pipe jacks present several problems. Firstly, steel pipe jacks are generally non-standard components, typically fabricated on-site by workers, resulting in poor structural strength and inadequate support quality for the basement structure, thus leading to safety issues.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This application provides a basement structure backfilling device, which can solve the problem of how to improve the support quality and safety of basement structures in the prior art.

[0008] (II) Technical Solution

[0009] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0010] A basement structure backfilling device is provided, which includes: a steel pipe column, a support plate, a hydraulic jack, expansion bolts, and U-shaped steel bars;

[0011] The bottom of the column steel pipe is used to connect to the bottom of the basement structure, and its top is fixedly connected to the support plate;

[0012] The support plate is horizontally set, and the hydraulic jack is fixedly installed on the upper end of the support plate. Its plunger is vertically set and fixedly connected to a connecting plate. The connecting plate is fixedly connected to the top of the basement structure by the expansion bolts.

[0013] At least two U-shaped reinforcing bars are evenly arranged around the periphery of the hydraulic jack. Each U-shaped reinforcing bar consists of two parallel and vertically arranged vertical reinforcing bars and a horizontal reinforcing bar connected to the bottom of the two vertical reinforcing bars. The horizontal reinforcing bar is welded to the support plate.

[0014] In some embodiments, the column steel pipe is a hot-rolled seamless steel pipe.

[0015] In some embodiments, the hot-rolled seamless steel pipe is made of Q235B steel.

[0016] In some embodiments, the hydraulic jack is a 50t hydraulic jack.

[0017] In some embodiments, the support plate is a steel plate made of Q235B material with a thickness of 20mm.

[0018] In some embodiments, the diameter of the expansion bolt is 8 mm.

[0019] In some embodiments, the bottom of the hydraulic jack is limited between the transverse reinforcing bars, and the middle portion is limited between the vertical reinforcing bars.

[0020] In some embodiments, the height H between the basement structural floors, and the length h of the column steel pipe are defined as H - 3 support plate thicknesses - hydraulic jack height - reserved extension value, wherein the reserved extension value is 50mm.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the beneficial effects of the technical solution provided in this application include at least the following:

[0023] The basement structure jacking device of this application supports the basement structure sequentially through steel pipe columns, support plates, and hydraulic jacks. The support plates provide a flat installation base for the hydraulic jacks, improving their stability. Connecting plates are installed on the plugs of the hydraulic jacks to increase the connection area with the basement ceiling, and expansion bolts enhance the connection strength between the connecting plates and the basement ceiling. Simultaneously, the transverse reinforcing bars of the U-shaped steel bars are fixed to the support plates, improving the structural strength of the support plates and serving as a limiting structure for the hydraulic jacks, assisting in their fixation. The vertical reinforcing bars of the U-shaped steel bars limit the movement of the hydraulic jacks, thus preventing uneven initial stress and fall, improving safety performance. It can be seen that the basement structure jacking device of this application can improve the support quality and safety of the basement structure through steel pipe columns, support plates, hydraulic jacks, expansion bolts, and U-shaped steel bars. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the basement structure backfill device in the embodiments of this application;

[0026] Figure 2 This is a perspective view of the basement structure roofing device in the embodiments of this application.

[0027] Attached reference numerals: 1. Column steel pipe; 2. Support plate; 3. Hydraulic jack; 4. Expansion bolt; 5. U-shaped steel bar; 11. Steel pad; 31. Piston; 32. Connecting plate; 51. Vertical steel bar; 52. Horizontal steel bar.

[0028] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0030] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] The existing basement structure jacking system uses steel pipe jacks, which are generally non-standard components and are usually fabricated on-site by workers. These jacks have poor structural strength and poor support for the basement structure, which leads to safety problems.

[0032] To address the aforementioned technical problems, this embodiment provides a basement structure backfilling device.

[0033] The basement structure backfilling device includes: 1. upright steel pipe, 2. support plate, 3. hydraulic jack, 4. expansion bolt, and 5. U-shaped steel bar.

[0034] The bottom of the column steel pipe 1 is used to connect to the bottom of the basement structure, and its top is fixedly connected to the support plate 2. In some embodiments, the column steel pipe 1 is a hot-rolled seamless steel pipe made of Q235B steel. Hot-rolled seamless steel pipes have high strength and good toughness, and can withstand greater pressure. When selecting hot-rolled seamless steel pipes, appropriate pipe specifications, such as outer diameter and wall thickness, are determined based on the load requirements and support height of the basement structure. For example, for a basement structure of typical size, a hot-rolled seamless steel pipe with an outer diameter of 180mm and a wall thickness of 8mm can be selected.

[0035] The support plate 2 is horizontally positioned. In some embodiments, the support plate 2 is a 20mm thick Q235B steel plate. The Q235B steel plate has good strength and toughness, capable of withstanding the pressure transmitted by the hydraulic jack 3. During the fabrication of the support plate 2, the steel plate is cut and drilled according to the specifications of the column steel pipe 1 and the installation dimensions of the hydraulic jack 3. After processing, the surface of the support plate 2 undergoes rust removal and anti-corrosion treatment to improve its corrosion resistance.

[0036] The hydraulic jack 3 is fixedly installed on the upper end of the support plate 2. Its plunger 31 is vertically positioned and fixedly connected to a connecting plate 32. The connecting plate 32 is fixedly connected to the top of the basement structure via expansion bolts 4, i.e., fixedly connected to the floor slab. In some embodiments, the hydraulic jack 3 is a 50t hydraulic jack. A 50t hydraulic jack has a large lifting force, which can meet the needs of supporting the backfill of the basement structure. When selecting the hydraulic jack 3, its appearance quality should be checked to ensure that there is no damage or deformation. At the same time, the performance of the hydraulic jack 3 should be tested, such as lifting speed and pressure adjustment range, to ensure that its performance meets the requirements.

[0037] In some implementations, the expansion bolt 4 has a diameter of 8mm. An 8mm diameter expansion bolt 4 provides sufficient connection strength to ensure a secure connection between the connecting plate 32 and the top of the basement structure. When selecting the expansion bolt 4, its appearance quality should be checked to ensure there are no cracks, deformations, or other defects. Simultaneously, based on the material and thickness of the basement structure's top, an appropriate length of expansion bolt 4 should be selected to ensure it is firmly fixed to the basement structure's top.

[0038] At least two U-shaped steel bars 5 are evenly provided around the hydraulic jack 3. They include two vertical steel bars 51 that are parallel to each other and vertically arranged, and a horizontal steel bar 52 connected to the bottom of the two vertical steel bars 51. The horizontal steel bar 52 is welded to the support plate 2.

[0039] In some embodiments, the bottom of the hydraulic jack 3 is limited between the horizontal reinforcing bars 52, and its middle portion is limited between the vertical reinforcing bars 51. This arrangement allows for precise adjustment of the positions of the vertical and horizontal reinforcing bars 51 during the installation of the U-shaped reinforcing bar 5, ensuring the hydraulic jack 3 is accurately installed within the limited space of the U-shaped reinforcing bar 5. During operation, the horizontal and vertical reinforcing bars 52 and 51 of the U-shaped reinforcing bar 5 effectively restrict the displacement of the hydraulic jack 3, preventing it from swaying or tilting, thus improving the stability and safety of the device. Even if the hydraulic jack 3 detaches from the support plate 2, it will not fall.

[0040] When backfilling is required for the basement structure, pressure is applied to the plunger 31 via the hydraulic system of the hydraulic jack 3. The plunger 31 moves upward, pushing the connecting plate 32 and the top of the basement structure, thereby applying an upward supporting force to the basement structure. During the support process, components such as the column steel pipe 1, support plate 2, and U-shaped steel bar 5 work together to bear the pressure transmitted by the hydraulic jack 3, ensuring the stability and safety of the entire device.

[0041] The installation of the basement structure backfill device of this application includes the following steps:

[0042] 1. Based on the construction site conditions, determine the plane center of the steel pipe 1 and use a chalk line to mark the position of the steel pad 11 at the bottom of the pipe for placing the steel pipe 1. 2. At the layout point, use a laser rangefinder to measure the height H between floors, confirming the length h of the steel pipe 1 = height H - thickness of 3 support plates 2 (3*20mm) - height of hydraulic jack 3 (350mm) - reserved extension value (50mm) = H - 460mm. The allowable deviation is +20mm to -50mm. 3. Cut the steel pipe 1 according to the measured length. When cutting the steel pipe 1, ensure that both cut surfaces are on the same plane. Therefore, first draw the cutting line with a pen, then cut the steel pipe 1 using a plasma cutter. Then, fully weld the ends of the steel pipe 1 to the support plate 2 and the steel pad 11. Control the cutting of the butt joint of the steel pipe 1 to be flush, align and weld on a specially made butt joint mold to ensure the butt joint of the steel pipe 1 is aligned. 4. Use a forklift to transport the upright steel pipe 1 to the installation point and place it in the designated position. The support plate 2 should overlap with the layout position. The installation sequence is from bottom to top. The upper and lower parts must be arranged on the same plane, and the allowable deviation of the center should not exceed 5cm. After the hydraulic jack 3 is placed, weld U-shaped steel bars 5 around the support plate 2 to prevent uneven initial stress applied by the jack 3 from causing it to fall off; drive one Ф8 expansion bolt 4 on each of the four sides of the connecting plate 32 to prevent the top steel plate from falling off under the influence of the upper live load. 5. Gently rock the hydraulic jack 3 until it is firmly against the floor slab, then slowly rock it 5 times to ensure it is firmly against the floor slab.

[0043] The basement structure backfilling device of this application supports the basement structure sequentially through a steel pipe column 1, a support plate 2, and a hydraulic jack 3, possessing significant technical advantages: First, enhanced support stability: The support plate 2 provides a flat installation base for the hydraulic jack 3, effectively improving its stability and preventing it from swaying or tilting under heavy pressure. Second, improved connection strength: A connecting plate 32 is installed on the piston rod of the hydraulic jack 3, increasing the contact area with the basement roof slab. Simultaneously, expansion bolts 4 are used for fixing, greatly enhancing the connection strength between the connecting plate 32 and the basement roof slab, effectively preventing loosening or detachment of the hydraulic jack 3 from the roof slab. Equally important, improved structural strength and limiting protection: The transverse reinforcing bars 52 of the U-shaped steel bar 5 are fixed to the support plate 2, not only improving the structural strength of the support plate 2, enabling it to better withstand the pressure transmitted by the hydraulic jack 3, but also serving as a limiting structure for the hydraulic jack 3, assisting in fixing the hydraulic jack 3 and preventing it from shifting during operation. The vertical reinforcing bars 51 of the U-shaped steel bar 5 further limit the hydraulic jack 3, effectively avoiding the problem of falling off due to uneven initial stress applied by the hydraulic jack 3, and significantly improving the safety performance of the device.

[0044] In summary, the basement structure backfilling device of this application effectively improves the support quality of the basement structure through the synergistic effect of the column steel pipe 1, support plate 2, hydraulic jack 3, expansion bolt 4 and U-shaped steel bar 5. Its support stability, connection strength and safety performance are significantly improved, providing a strong guarantee for the safe construction and use of the basement structure.

[0045] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A basement structure jacking apparatus, characterized by, The utility model relates to a basement structure supporting device, which comprises: a vertical steel pipe, a support plate, a hydraulic jack, an expansion bolt and a U-shaped steel bar; the bottom of the vertical steel pipe is used for connecting the bottom of a basement structure, and the top is fixedly connected with the support plate; the support plate is horizontally arranged, the hydraulic jack is fixedly installed at the upper end of the support plate, the plunger of the hydraulic jack is vertically arranged, and a connecting plate is fixedly connected with the plunger, the connecting plate is fixedly connected with the top of the basement structure through the expansion bolt; at least two U-shaped steel bars are uniformly arranged around the hydraulic jack, each U-shaped steel bar comprises two vertical steel bars which are parallel to each other and vertically arranged, and a horizontal steel bar which is connected at the bottom of the two vertical steel bars, and the horizontal steel bar is welded on the support plate.

2. The basement structure kick-out device of claim 1, wherein, The vertical steel pipe is a hot-rolled seamless steel pipe.

3. The basement structure kickout device of claim 2, wherein, The material of the hot-rolled seamless steel pipe is Q235B steel.

4. The basement structure kickout device of claim 1, wherein, The hydraulic jack is a 50t hydraulic jack.

5. The basement structure racking device of claim 1, wherein, The support plate is a steel plate with Q235B material and a thickness of 20mm.

6. The basement structure racking device of claim 1, wherein, The diameter of the expansion bolt is 8mm.

7. The basement structure racking device of claim 1, wherein, The bottom of the hydraulic jack is limited between each horizontal steel bar, and the middle part of the hydraulic jack is limited between each vertical steel bar.

8. The basement structure racking device of claim 1, wherein, The height H between floors of the basement structure, the length h of the vertical steel pipe is H-3 times the thickness of the support plate- the height of the hydraulic jack- a reserved extension value, and the reserved extension value is 50mm.

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