Basement top plate back-jacking structure and mounting method thereof

Abstract

The invention discloses a basement roof back-jacking structure and an installation method thereof.The basement roof back-jacking structure comprises vertical supports, the vertical supports are stacked and linearly arranged to form supporting assemblies, and the supporting assemblies are symmetrically arranged on the ground of the position where installation is needed; a movable base is arranged at the bottom of the supporting assembly, a top plate is arranged on the outer side of the lower end of the supporting assembly, and a jack is vertically arranged at the bottom of the top plate. The multiple horizontal supports are transversely arranged on the upper sides of the supporting assemblies to connect the two supporting assemblies; the vertical support and the horizontal support are the same in structure and comprise profile steel, and connecting plates are arranged at the two ends of the profile steel. The problems that when an all-round scaffold is adopted below an existing basement top plate for back-jacking supporting, a scaffold erecting area cannot be dismantled for a long time, passing in a basement is hindered, and construction operation is affected can be solved.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a basement top plate return structure and an installation method thereof. Background Art

[0002] During the construction phase, the construction site has limited space available for construction work. In order to meet the construction needs, it is often necessary to use the basement roof area to lay out temporary transportation roads, material yards and processing plants. Sometimes, it is even necessary to provide operating conditions for large mechanical equipment. The loads generated by these construction contents often seriously exceed the design load limit of the basement roof structure. In order to ensure the stability and safety of the basement structure, the site often uses full-height scaffolding to be erected under the basement roof in the affected range for top reinforcement. These full-height frames are continuously erected over a large area, occupying a large space in the basement, and cannot be dismantled for a long time, which is unfavorable to the dynamic management of the construction plane. Due to changes in on-site construction conditions or construction needs, it is inevitable to organize construction work on the basement roof and in the basement at the same time. Therefore, the use of conventional full-height frames as a support system can no longer meet the needs of on-site construction. The two cannot be achieved at the same time. Therefore, a new top-return structure is designed to meet the current usage needs. Summary of the invention

[0003] The invention provides a basement top plate return structure and an installation method thereof, which can solve the problem that when a full-floor scaffold is used for return support under the existing basement top plate, the scaffold erection area cannot be dismantled for a long time, which hinders the passage in the basement and affects the construction work.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a basement roof return structure and an installation method thereof, comprising vertical supports, which are stacked and arranged in a straight line to form a support assembly, and the support assembly is symmetrically arranged on the ground at the location where it needs to be installed; a movable base is arranged at the bottom of the support assembly, a top plate is arranged on the outer side of the lower end of the support assembly, and a jack is vertically arranged at the bottom of the top plate; horizontal supports are arranged in multiple lateral directions on the upper side of the support assembly to connect two groups of support assemblies; the vertical supports and the horizontal supports have the same structure and both include steel sections, and connecting plates are arranged at both ends of the steel sections, which are easy to assemble, do not occupy the internal space of the basement, and are conducive to other construction operations.

[0005] Preferably, bolts are passed through two adjacent connecting plates, and nuts are provided at the ends of the bolts, which has a simple structure, is easy to install, and saves time and labor.

[0006] Preferably, the movable base includes a screw rod connected to the connecting plate, and a pad is provided at the bottom of the screw rod, so that the structure has good stability.

[0007] Preferably, threaded sleeves are welded side by side on the upper side of the pad, one end of the screw is connected to the threaded sleeve, and the other end of the screw is connected to the connecting plate, which has a simple structure, is easy to install, and saves time and labor.

[0008] Preferably, reinforcing ribs are arranged side by side on the upper side of the top plate, and the reinforcing ribs are connected to the steel section, so that the structure has good stability.

[0009] Preferably, a pressure gauge is provided on the jack, and whether the top is fully returned is determined based on the pressure gauge.

[0010] The present invention also provides a method for installing a basement top plate return structure, and the specific steps are as follows:

[0011] S1. Install the support components on both sides, determine the installation height of the return structure according to the basement floor height, determine the installation position of the return structure, place multiple vertical supports on the ground at the location where they need to be installed, and install multiple vertical supports to a suitable height. Perform temporary support during the sectioning process to prevent the vertical supports from tipping over. Similarly, install the vertical supports on the other side and the adjacent vertical supports in front and behind to the same height to complete the assembly of the support components;

[0012] S2. Install horizontal supports at the top of vertical supports, add sections to the vertical supports on the other side one by one, adjust the position of the vertical supports on that side and firmly connect the standard sections of horizontal supports with the vertical supports to form the first portal frame. Similarly, install the adjacent portal frames, and firmly connect the adjacent portal frames with the longitudinal standard sections of horizontal supports. At this time, remove the temporary supports.

[0013] S3. Place a jack with a pressure gauge under the top plate, use the jack to lift the vertical support, so that the horizontal support above the vertical support is against the basement top plate, and judge whether the top is in place according to the jack pressure gauge;

[0014] S4. Place the movable base at the bottom of the lowest vertical support, place the pad on the ground directly below, lay it flat, insert the screw from above the bolt hole of the connecting plate, and then screw the nut from bottom to top into the lower half of the screw, the nut abuts the connecting plate, and then screw the lower end of the screw into the threaded sleeve on the lower pad, adjust the appropriate position, screw the nut into the upper end of the screw, and tighten the connecting plate with the nuts on the upper and lower sides of the connecting plate to fix the movable base to the top vertical support, and the jack can be removed;

[0015] S5. After use, remove the top structure for next use.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The structure is simple, the operation is convenient, the materials are easy to obtain, the rigidity and strength are large after installation, the support system is stable, the bearing capacity is large, the vertical displacement is small, it can be assembled and disassembled in sections, the adjustment is convenient and flexible, the turnover utilization rate is high, the applicability is strong, the use site is less restricted, and the return structure occupies a small space in the basement. After installation, it does not affect the construction activities within the range, which is convenient for the plane management of the construction site. It can solve the problem that when a full-height scaffolding is used for return support under the existing basement top plate, the scaffolding erection area cannot be dismantled for a long time, which hinders the passage in the basement and affects the construction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation structure of the jack of the present invention;

[0020] Figure 3 A top view of the top plate and reinforcing ribs of the present invention;

[0021] Figure 4 A side view of the top plate and reinforcing ribs of the present invention;

[0022] Figure 5 It is an exploded view of the movable base of the present invention.

[0023] Reference numerals:

[0024] 1. Jack, 101. Pressure gauge, 2. Movable base, 3. Screw, 4. Support assembly, 5. Top plate, 6. Reinforcement ribs, 7. Connecting plate, 8. Bolts, 9. Nuts, 10. Vertical support, 11. Horizontal support, 12. Pad, 13. Threaded sleeve, 14. Steel section. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] like Figure 1-5As shown, the present invention solves the problem that when a full-floor scaffold is used for the return support under the existing basement roof, the scaffold erection area cannot be dismantled for a long time, which hinders the passage in the basement and affects the construction work. The present invention provides the following technical solutions: a basement roof return structure and an installation method thereof, comprising vertical supports 10, the vertical supports 10 are stacked and arranged in a straight line to form a support assembly 4, the support assembly 4 is symmetrically arranged on the ground at the required installation position; a movable base 2 is arranged at the bottom of the support assembly 4, a top plate 5 is arranged on the outer side of the lower end of the support assembly 4, and a jack 1 is vertically arranged at the bottom of the top plate 5; horizontal supports 11 are arranged in multiple lateral directions on the upper side of the support assembly 4 to connect two groups of support assemblies 4; the vertical supports 10 and the horizontal supports 11 have the same structure and both include steel sections 14, and connecting plates 7 are arranged at both ends of the steel sections 14, which are easy to assemble, do not occupy the internal space of the basement, and are conducive to other construction work.

[0027] In this embodiment, if Figure 1 As shown, bolts 8 are passed through two adjacent connecting plates 7, and nuts 9 are provided at the ends of the bolts 8. The structure is simple, the installation is easy, and time and labor are saved.

[0028] In this embodiment, if Figure 2 As shown, the movable base 2 includes a screw rod 3 connected to the connecting plate 7, and a pad 12 is provided at the bottom of the screw rod 3, so the structure has good stability.

[0029] In this embodiment, if Figure 5 As shown, threaded sleeves 13 are welded side by side on the upper side of the pad 12, one end of the screw 3 is connected to the threaded sleeve 13, and the other end of the screw 3 is connected to the connecting plate 7, which has a simple structure and is easy to install, saving time and labor.

[0030] In this embodiment, if Figure 3 As shown, reinforcing ribs 6 are arranged side by side on the upper side of the top plate 5 , and the reinforcing ribs 6 are connected to the steel section 14 , so the structure has good stability.

[0031] In this embodiment, if Figure 2 As shown, the jack 1 is provided with a pressure gauge 101, and the pressure gauge 101 is used to judge whether the top return is in place.

[0032] In this embodiment, if Figure 1 As shown, a method for installing a basement top plate return structure, the specific steps are as follows:

[0033] S1. Install the support components 4 on both sides, determine the installation height of the return structure according to the basement floor height, determine the installation position of the return structure, place multiple vertical supports 10 on the ground at the location where they need to be installed, and install multiple vertical supports 10 to a suitable height. Perform temporary support during the sectioning process to prevent the vertical supports 10 from tipping over. Similarly, install the vertical supports 10 on the other side and the adjacent vertical supports 10 in front and behind to the same height to complete the assembly of the support components 4.

[0034] S2, install the horizontal support 11 at the top of the vertical support 10, add sections to the vertical support 10 on the other side one by one, adjust the position of the vertical support 10 on this side and firmly connect the standard section of the horizontal support 11 with its vertical support 10 to form the first gantry. Similarly, after installing the adjacent gantry, use the longitudinal standard section of the horizontal support 11 to firmly connect the adjacent gantry. At this time, remove the temporary support;

[0035] S3, place the jack 1 with the pressure gauge 101 under the top plate 5, use the jack 1 to lift the vertical support 10, so that the horizontal support 11 on the upper part of the vertical support 10 is against the basement top plate, and judge whether the top is in place according to the pressure gauge 101 of the jack 1;

[0036] S4. Place the movable base 2 at the bottom of the lowest vertical support 10, place the pad 12 on the ground directly below, lay it flat, insert the screw 3 from above the bolt hole of the connecting plate 7, and then screw the nut 9 into the lower half of the screw 3 from bottom to top, the nut 9 abuts the connecting plate 7, and then screw the lower end of the screw 3 into the threaded sleeve 13 on the pad 12 below, adjust the appropriate position, screw the nut 9 into the upper end of the screw 3, and the nuts 9 on the upper and lower sides of the connecting plate 7 tighten the connecting plate 7, so that the movable base 2 is fixed to the top vertical support 10, and the jack 1 can be removed;

[0037] S5. After use, remove the top structure for next use.

[0038] In this embodiment, if Figure 2 As shown, the steel 14 of the vertical support 10 is made of I-steel, the pad 12 and the connecting plate 7 are made of ordinary steel plates, the connecting plate 7 is welded and fixed to the steel 14, and the top plate 5 and the reinforcing ribs 6 are welded and fixed to the steel 14.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A basement roof return structure, characterized in that: include: Vertical supports (10), the vertical supports (10) are stacked and arranged in a straight line to form a support assembly (4), and the support assembly (4) is symmetrically arranged on the ground at a location to be installed; A movable base (2) is provided at the bottom of the support assembly (4), a top plate (5) is provided on the outer side of the lower end of the support assembly (4), and a jack (1) is vertically provided at the bottom of the top plate (5); A plurality of horizontal supports (11) are arranged transversely on the upper side of the support assembly (4) to connect the two groups of support assemblies (4); The vertical support (10) and the horizontal support (11) have the same structure and both include a steel section (14). Both ends of the steel section (14) are provided with connecting plates (7).

2. The basement roof return structure according to claim 1, characterized in that: Bolts (8) are passed through two adjacent connecting plates (7), and nuts (9) are provided at the ends of the bolts (8).

3. The basement roof return structure according to claim 1, characterized in that: The movable base (2) comprises a screw rod (3) connected to the connecting plate (7), and a pad (12) is provided at the bottom of the screw rod (3).

4. The basement roof return structure according to claim 3, characterized in that: Threaded sleeves (13) are welded side by side on the upper side of the pad (12); one end of the screw rod (3) is connected to the threaded sleeve (13); and the other end of the screw rod (3) is connected to the connecting plate (7).

5. The basement roof return structure according to claim 1, characterized in that: Reinforcing ribs (6) are arranged side by side on the upper side of the top plate (5), and the reinforcing ribs (6) are connected to the section steel (14).

6. The basement roof return structure according to claim 1, characterized in that: The jack (1) is provided with a pressure gauge (101).

7. The method for installing the basement top plate recovery structure according to any one of claims 1 to 6, characterized in that: The specific steps are as follows: S1, installing the support components (4) on both sides, determining the installation height of the return structure according to the basement floor height, determining the installation position of the return structure, placing multiple vertical supports (10) on the ground at the location to be installed, and stacking and installing multiple vertical supports (10) to a suitable height. During the sectioning process, temporary support is provided to prevent the vertical supports (10) from tipping over. Similarly, installing the vertical supports (10) on the other side and the vertical supports (10) adjacent to each other in front and behind to the same height, and completing the assembly of the support components (4); S2, install the horizontal support (11) at the top of the vertical support (10), add sections to the vertical support (10) on the other side, adjust the position of the vertical support (10) on this side and connect the standard section of the horizontal support (11) to the vertical support (10) firmly to form the first portal frame. Similarly, after installing the adjacent portal frames, use the longitudinal standard section of the horizontal support (11) to connect the adjacent portal frames firmly. At this time, remove the temporary support; S3, placing a jack (1) with a pressure gauge (101) below the top plate (5), using the jack (1) to lift the vertical support (10), so that the horizontal support (11) above the vertical support (10) is against the basement top plate, and judging whether the top is in place according to the pressure gauge (101) of the jack (1); S4. Place the movable base (2) at the bottom of the lowest vertical support (10), place the pad (12) on the ground directly below, lay it flat, insert the screw (3) from above the bolt hole of the connecting plate (7), and then screw the nut (9) from bottom to top into the lower half of the screw (3), so that the nut (9) abuts against the connecting plate (7), and then screw the lower end of the screw (3) into the threaded sleeve (13) on the pad (12) below, adjust the appropriate position, screw the nut (9) into the upper end of the screw (3), and tighten the connecting plate (7) with the nuts (9) on the upper and lower sides of the connecting plate (7) to fix the movable base (2) to the top vertical support (10), and the jack (1) can be removed; S5. After use, remove the top structure for next use.

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