Overweight load basement top plate back-jacking supporting structure

Abstract

The utility model discloses an overweight load basement top plate back-jacking supporting structure which comprises a bottom distribution beam, a stand column and a top distribution beam, the bottom distribution beam is arranged at the bottom of a basement, and the top distribution beam is arranged at the plate bottom of the top of the basement corresponding to the bottom distribution beam. The stand columns are evenly arranged between the bottom distribution beam and the top distribution beam at intervals. The supporting system structure with the stand columns and the distribution beams is adopted for back-jacking supporting and reinforcing of the basement roof, the structure is high in load bearing capacity and convenient to construct, and the construction problems that when an existing basement roof is used in an overload mode, deflection deformation of the roof is large, structural stress is complex, and safety risks are high are solved.

Description

Technical Field

[0001] The utility model belongs to the field of building construction, and in particular relates to an overload basement top plate return support structure. Background Art

[0002] In the construction of basement projects, vertical cross-construction is often unavoidable on the construction site. When the basement top plate is loaded with materials or heavy machinery is used, excessive construction loads will cause irreparable damage to the basement structure, causing cracks or even fractures in the basement structural plates, affecting the use function of the basement structure while posing a huge hidden danger to construction safety.

[0003] The existing technology usually adopts a disc-shaped support system to provide back support for the basement roof part that will generate construction loads; however, the disc-shaped support system has limited load-bearing capacity. When the load on the upper part of the roof exceeds its bearing limit, the disc-shaped support system is prone to overturning or collapse; secondly, the height of the disc-shaped uprights is usually a standard module, and it is difficult to adjust the floor height when encountering non-standard floor heights; and the disc-shaped support system has many stress nodes and the erection process is relatively complicated. Workers are prone to cause the overall frame to become unstable due to negligence of a certain stress node. Summary of the invention

[0004] The purpose of the utility model is to provide an overloaded basement roof return support structure, which has a strong load-bearing capacity and is convenient to construct, and solves the construction problems of large deflection and deformation of the existing basement roof when it is overloaded, complex structural force, and high safety risks.

[0005] The technical solution adopted by the utility model is a super-heavy-load basement top plate return support structure, including a bottom distribution beam, columns and a top distribution beam. The bottom distribution beam is arranged at the bottom of the basement, and the top distribution beam is arranged at the bottom of the plate at the top of the basement corresponding to the bottom distribution beam. A plurality of columns are evenly spaced and arranged between the bottom distribution beam and the top distribution beam.

[0006] Preferably, the specification of the above-mentioned columns is D630*10mm, and the installation spacing is 4m.

[0007] Preferably, the above-mentioned columns include a first section of columns, a second section of columns and a third section of columns. The bottom end of the first section of columns is bolted to the bottom distribution beam through a flange, and the top end is bolted to the bottom end of the second section of columns through a flange, the top end of the second section of columns is bolted to the third section of columns through a flange, and the top end of the third section of columns is connected to the top distribution beam.

[0008] Preferably, the top and bottom of the adjacent second-section columns are horizontally connected by a top support and a bottom support respectively, and the top and bottom of the adjacent second-section columns are cross-connected by an oblique support.

[0009] Preferably, the top support, bottom support and diagonal support are all made of angle steel with a specification of 110*7mm.

[0010] Preferably, the top distribution beam adopts a double-jointed 63C distribution beam, and the bottom distribution beam adopts a quad-jointed 63C distribution beam.

[0011] Preferably, the top distribution beam is provided with a lifting lug.

[0012] Compared with the existing technology, the beneficial effect of the utility model is that the basement top plate is supported and reinforced by adopting a support system structure of columns + distribution beams. The structure has strong load-bearing capacity and convenient construction. It solves the construction problems of large deflection and deformation of the top plate when the existing basement top plate is overloaded, complex structural force, and high safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the basement top slab return support structure;

[0014] Figure 2 This is the main view of the basement top slab support structure;

[0015] Figure 3 This is a side view of the basement top slab support structure;

[0016] Figure 4 This is the construction structural drawing of the basement top slab support structure. DETAILED DESCRIPTION

[0017] The present invention will be further explained below in conjunction with the accompanying drawings to facilitate better understanding by those skilled in the art.

[0018] Example 1

[0019] A super-heavy-load basement top plate return support structure includes a bottom distribution beam 1, a column 2 and a top distribution beam 3. The bottom distribution beam 1 is arranged at the bottom of the basement, the top distribution beam 3 is arranged at the bottom of the plate at the top of the basement corresponding to the bottom distribution beam 1, and a plurality of columns 2 are evenly spaced and arranged between the bottom distribution beam 1 and the top distribution beam 3. The bottom distribution beam 1, the column 2 and the top distribution beam 3 are assembled and connected to form a support system structure to perform return support reinforcement on the basement top plate.

[0020] In order to strengthen the load-bearing capacity of the basement top slab return support structure, the top distribution beam 3 adopts a double-jointed 63C (630×180×17mm) distribution beam, and the bottom distribution beam 1 adopts a four-jointed 63C (630×180×17mm) distribution beam.

[0021] The specification of the above-mentioned column 2 is D630*10mm, and the installation spacing is 4m. The column 2 includes a first section column 21, a second section column 22 and a third section column 23. The bottom end of the first section column 21 is bolted to the bottom distribution beam 1 through a flange, the top end of the first section column 21 is bolted to the bottom end of the second section column 22 through a flange, the top end of the second section column 22 is bolted to the third section column 23 through a flange, and the top end of the third section column 23 is connected to the top distribution beam 3, and the top distribution beam 3 is provided with a lifting lug. By splitting the column 2 into three sections for installation, on the one hand, it is easy to install, and on the other hand, it is conducive to ensuring the stability and balance between the column 2 and the top distribution beam 3.

[0022] The top and bottom of the adjacent second-stage columns 22 are horizontally connected with a top support 5 and a bottom support 6, respectively, and the top and bottom of the adjacent second-stage columns 22 are cross-connected with an oblique support 4. Among them, the top support 5, the bottom support 6 and the oblique support 4 are all made of angle steel with a specification of 110*7mm.

[0023] The basement top slab is reinforced by back-supporting by adopting a supporting system structure of columns + distribution beams. This structure has strong load-bearing capacity and is easy to construct. It solves the construction problems of large deflection and deformation of the existing basement top slab under overload, complex structural force, and high safety risks.

[0024] Process flow: First, refer to the construction plan to lay out the bottom distribution beam 1, use a forklift to place the bottom distribution beam 1 in the corresponding position, then make a temporary lattice support frame and place the lattice support frame on the bottom distribution beam 1; place and install a lifting platform on the lattice support frame, place the top distribution beam 3 on the lifting platform, and carry out jacking construction under the premise of ensuring the stability and balance of the distribution amount, and jack the top distribution beam 3 to the bottom of the top plate of the basement; use the lifting lugs set on the beam section, use a forklift and a fall chain to install the columns 2 in sections, and each column 2 is installed in three sections. To ensure the overall balance, the columns 2 on both sides of the lattice support frame need to be constructed at the same time; finally, dismantle the lattice support frame and the lifting platform, and carry out the welding construction of the inter-column support. At this point, the installation construction of the top support reinforcement structure is completed.

[0025] The above-mentioned embodiments are only for describing the preferred implementation of the utility model, and are not intended to limit the scope of the utility model. Without departing from the design spirit and principle of the utility model, various modifications and improvements made by those skilled in the art to the technical solution of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. An overload basement roof return support structure, characterized in that: The invention comprises a bottom distribution beam (1), columns (2) and a top distribution beam (3), wherein the bottom distribution beam (1) is arranged at the bottom of the basement, the top distribution beam (3) is arranged at the bottom of the slab at the top of the basement corresponding to the bottom distribution beam (1), and a plurality of columns (2) are evenly spaced and arranged between the bottom distribution beam (1) and the top distribution beam (3).

2. The super-heavy-load basement top slab return support structure according to claim 1 is characterized in that: The specification of the columns (2) is D630*10mm, and the installation spacing is 4m.

3. The super-heavy-load basement top slab return support structure according to claim 1 is characterized in that: The column (2) comprises a first column section (21), a second column section (22) and a third column section (23); the bottom end of the first column section (21) is bolted to the bottom distribution beam (1) via a flange, the top end is bolted to the bottom end of the second column section (22) via a flange, the top end of the second column section (22) is bolted to the third column section (23) via a flange, and the top end of the third column section (23) is connected to the top distribution beam (3).

4. The super-heavy-load basement top slab return support structure according to claim 3 is characterized in that: A top support (5) and a bottom support (6) are horizontally connected between the top and bottom of the adjacent second-stage columns (22), respectively, and an oblique support (4) is cross-connected between the top and bottom of the adjacent second-stage columns (22).

5. The super-heavy-load basement top slab return support structure according to claim 4 is characterized in that: The top support (5), the bottom support (6) and the diagonal support (4) are all made of angle steel with a specification of 110*7 mm.

6. The super-heavy-load basement roof return support structure according to claim 1 is characterized in that: The top distribution beam (3) adopts a double-jointed 63C distribution beam, and the bottom distribution beam adopts a quad-jointed 63C distribution beam.

7. The super-heavy-load basement top slab return support structure according to claim 1 is characterized in that: The top distribution beam (3) is provided with a lifting lug.

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