Thin-wall steel and concrete combined building structure and construction method thereof

Abstract

The invention provides a thin-wall steel and concrete combined building structure and a construction method thereof, and is characterized in that the structure sequentially comprises a concrete protection layer, a thin-wall steel frame and a concrete pouring body from outside to inside, the thin-wall steel frame is formed by assembling a thin-wall steel combination column, a thin-wall steel combination beam and a thin-wall steel combination plate, the thin-wall steel combination column, the thin-wall steel combination beam and the thin-wall steel combination plate are all made of thin-wall steel, concrete formwork installation holes and concrete circulation holes are formed in the surface of the thin-wall steel in order, and the concrete formwork installation holes are used for fixing a concrete pouring formwork. The concrete circulation holes are mainly used for facilitating flowing of poured concrete, and the concrete protection layer and the concrete pouring body are integrally connected through the concrete circulation holes. Under the condition of improving the fireproof thermal insulation performance, standard modular construction is adopted, the site labor use amount can be reduced, the manufacturing cost investment is saved, and the civil construction and equipment pipeline installation period is shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure and concrete structure, and particularly relates to a building structure combining thin-walled steel and concrete and a construction method thereof. BACKGROUND

[0002] Although the traditional multi-story steel structure system has a fast construction speed, the comprehensive cost is high, and the fireproof performance is poor. The traditional concrete structure has good fireproof performance, but the construction speed is slow, and the amount of on-site labor is large, which is not conducive to long-term cost control. With the development of the real estate industry into the stock competition stage, the requirements for saving construction cost investment, reducing construction period and improving fireproof and thermal insulation performance are increasing. Therefore, it is an urgent industry consensus to find a building structure system which is convenient to construct, has high fireproof and thermal insulation performance and controllable cost. SUMMARY

[0003] In order to solve the defects of complex structure and high cost of the traditional steel structure and concrete system, the present application provides a building structure combining thin-walled steel and concrete. The building structure is characterized by a concrete protective layer, a thin-walled steel frame and a concrete pouring body from outside to inside. The thin-walled steel frame is assembled by a thin-walled steel composite column, a thin-walled steel composite beam and a thin-walled steel composite plate. The manufacturing materials of the thin-walled steel composite column, the thin-walled steel composite beam and the thin-walled steel composite plate are all thin-walled steel. The surface of the thin-walled steel is provided with regularly arranged concrete formwork mounting holes and concrete flow-through holes. The concrete formwork mounting holes are used to fix the concrete pouring formwork. The main function of the concrete flow-through holes is to facilitate the flow of the poured concrete. The concrete protective layer and the concrete pouring body are integrally connected through the concrete flow-through holes.

[0004] The thin-walled steel composite column is further provided with additional tensioned steel bars and additional shear-resistant bars.

[0005] The thin-walled steel column is further divided into an L-shaped column, a T-shaped column and a Z-shaped column.

[0006] The concrete flow-through holes and the concrete formwork mounting holes are circular, rectangular or a combination of one or more other geometric shapes.

[0007] The concrete formwork mounting holes are further used to set shear-resistant keys, exhaust holes and temporary fixing members.

[0008] The present application further discloses the following construction steps:

[0009] Step 1, thin-walled steel prefabrication: the thin-walled steel used in the thin-walled steel composite column, the thin-walled steel composite beam and the thin-walled steel composite plate is all modularly manufactured in a factory.

[0010] Step 2, line positioning: the installation position of the thin-walled steel composite column is positioned and calibrated on the site foundation.

[0011] Step 3, field assembly: sequentially install the thin-walled steel composite column, thin-walled steel composite beam and thin-walled steel composite plate on the basis of the field to form a thin-walled steel frame.

[0012] Step 4, steel bar construction: according to the design requirements, add additional tensile steel bars and additional shear bars at the required nodes of the thin-walled steel frame.

[0013] Step 5, pipeline pre-burying: according to the design requirements, pre-bury pipelines or line boxes in the cavity of the thin-walled steel frame.

[0014] Step 6, formwork assembly: after the inspection of the node main material and steel bars is completed, assemble the concrete pouring formwork to attach and install the concrete pouring formwork on the thin-walled steel frame.

[0015] Step 7, pouring concrete: pour concrete and vibrate to make the concrete pouring dense to form the concrete protective layer 1 and the concrete pouring body.

[0016] Step 8, formwork removal: after the concrete curing is completed, remove the formwork, check the surface integrity of the concrete, and seal the bolt hole position.

[0017] The present application has the following advantages:

[0018] 1. Simple structure, quick installation and cost saving.

[0019] 2. The thin-walled steel of the main components of the thin-walled steel frame is modularly designed and processed in the factory. The thin-walled steel of the main structural components of the thin-walled steel frame can form a structural load-bearing system, and the frame can be quickly installed on the construction site. The thin-walled steel frame can be attached to the thin-walled steel for pouring concrete formwork installation, and temporary supports or top supports can not be used. The cavity of the thin-walled steel frame can improve the accuracy of pipeline installation, and the on-site pipeline construction is more convenient. The modular design and construction of the thin-walled steel belong to a form of building prefabrication, which improves the construction efficiency while reducing the construction cost. The main components of the thin-walled steel frame have a concrete protective layer on the surface, which has good fireproof performance.

[0020] 3. Under the condition of improving the fireproof and thermal insulation performance, the present application uses standard modular construction to reduce the use of labor, save cost investment, shorten the construction period of civil engineering and equipment pipeline installation, and has high economic benefits. DETAILED DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic view of the present application.

[0022] Figure 2 It is a schematic view of the thin-walled steel structure of the present application.

[0023] Figure 3 This is a schematic cross-sectional view of the thin-walled steel frame assembly structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the L-shaped column cross-section of the present invention.

[0025] Figure 5 This is a schematic diagram of the T-shaped column cross-section of the present invention.

[0026] Figure 6 This is a schematic diagram of the Z-shaped column cross-section of the present invention.

[0027] Figure 7 This is a schematic diagram of the cross-section of the thin-walled steel composite column and thin-walled steel composite beam of the present invention.

[0028] Figure 8 This is a schematic diagram of the cross-section of the thin-walled steel composite plate of the present invention.

[0029] Attached image labels:

[0030] 1. Concrete protective layer; 2. Thin-walled steel frame; 3. Concrete casting body.

[0031] 4. Thin-walled steel composite columns; 5. Thin-walled steel composite beams; 6. Thin-walled steel composite panels.

[0032] 7. Thin-walled steel; 8. Concrete flow hole; 9. Concrete formwork installation hole.

[0033] 10. Additional tensile reinforcement; 11. Additional shear reinforcement

[0034] 4-1, L-shaped column; 4-2, T-shaped column; 4-3, Z-shaped column Detailed implementation method:

[0035] like Figures 1 to 8 As shown, this invention provides a building structure combining thin-walled steel and concrete, characterized in that, from the outside to the inside, it consists of a concrete protective layer 1, a thin-walled steel frame 2, and a concrete casting body 3. The thin-walled steel frame 2 is assembled from thin-walled steel composite columns 4, thin-walled steel composite beams 5, and thin-walled steel composite plates 6. The thin-walled steel composite columns 4, thin-walled steel composite beams 5, and thin-walled steel composite plates 6 are all made of thin-walled steel 7. The surface of the thin-walled steel 7 is provided with neatly arranged concrete formwork installation holes 9 and concrete flow holes 8. The concrete formwork installation holes 9 are used to fix the concrete casting formwork, and the concrete flow holes 8 are used to facilitate the flow of the poured concrete. The concrete protective layer 1 and the concrete casting body 3 are integrally connected through the concrete flow holes 8.

[0036] The thin-walled steel composite column 4 is also provided with additional tensile reinforcement 10 and additional shear reinforcement 11.

[0037] The thin-walled steel composite column 4 is further divided into L-shaped column 4-1, T-shaped column 4-2 and Z-shaped column 4-3.

[0038] The concrete flow hole 8 and the concrete formwork mounting hole 9 are circular, rectangular or a combination of one or more of other geometric shapes.

[0039] The concrete formwork mounting hole 9 is also used to set up a shear key, set up an exhaust hole and set up a temporary fixing member.

[0040] The construction steps of the present application are as follows:

[0041] Step 1, thin-walled steel 7 prefabrication: the thin-walled steel 7 used in the thin-walled steel composite column 4, thin-walled steel composite beam 5 and thin-walled steel composite plate 6 is modularly manufactured in the factory.

[0042] Step 2, line positioning: positioning and calibrating the installation position of the thin-walled steel composite column 4 on the basis of the site.

[0043] Step 3, on-site assembly: sequentially installing the thin-walled steel composite column 4, thin-walled steel composite beam 5 and thin-walled steel composite plate 6 on the basis of the site to form a thin-walled steel frame 2.

[0044] Step 4, steel bar construction: according to the design requirements, adding additional tension steel bars 10 and additional shear bars 11 at the required joints on the thin-walled steel frame 2.

[0045] Step 5, pipeline pre-burying: according to the design requirements, pre-burying pipelines or line boxes in the cavities of the thin-walled steel frame 2.

[0046] Step 6, formwork assembly: after the inspection of the node main material and steel bar is completed, assembling the concrete pouring formwork to attach and install the concrete pouring formwork on the thin-walled steel frame 2.

[0047] Step 7, pouring concrete: pouring concrete and vibrating to make the concrete pouring compact to form the concrete protective layer 1 and the concrete pouring body 3.

[0048] Step 8, formwork removal: after the completion of the concrete curing, removing the formwork, checking the surface integrity of the concrete and plugging the bolt hole position.

[0049] In the description of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, the terms such as "setting", "connecting" should be understood in a broad sense, for example, "connecting" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be point connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] The above is only one embodiment of the present application, which is described in more detail and in more detail, but cannot be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A thin-walled steel-concrete composite building structure, characterized by, From outside to inside, it is concrete protection layer (1), thin-walled steel frame (2) and concrete pouring body (3) in turn, the thin-walled steel frame (2) is assembled by thin-walled steel combined column (4), thin-walled steel combined beam (5) and thin-walled steel combined plate (6), the manufacturing material of thin-walled steel combined column (4), thin-walled steel combined beam (5) and thin-walled steel combined plate (6) is thin-walled steel (7), the surface of thin-walled steel (7) is provided with orderly arranged concrete formwork mounting hole (9) and concrete flow hole (8), the function of concrete formwork mounting hole (9) is to fix concrete pouring formwork, the main function of concrete flow hole (8) is to facilitate the flow of pouring concrete, the concrete protection layer (1) is integrally connected with the concrete pouring body (3) through the concrete flow hole (8).

2. The thin-walled steel-concrete composite building structure according to claim 1, wherein The thin-walled steel combined column (4) is further provided with additional tensioned steel bars (10) and additional shear bars (11).

3. The thin-walled steel-concrete composite building structure according to claim 1, wherein The thin-walled steel combined column (4) is further divided into L-shaped column (4-1), T-shaped column (4-2) and Z-shaped column (4-3).

4. The thin-walled steel-concrete composite building structure according to claim 1, wherein The concrete flow hole (8) and the concrete formwork mounting hole (9) are circular, rectangular or a combination of one or more of other geometric shapes.

5. The thin-walled steel-concrete composite building structure according to claim 1, wherein The concrete formwork mounting hole (9) is also used to set shear keys, set exhaust holes and set temporary fixing members.

6. The thin-walled steel and concrete composite building structure according to claim 1, wherein The construction method comprises the following steps: Step 1, thin-walled steel (7) prefabrication: the thin-walled steel (7) used for the thin-walled steel combined column (4), thin-walled steel combined beam (5) and thin-walled steel combined plate (6) is all modularly manufactured in the factory. Step 2, line positioning: positioning and calibrating the installation position of the thin-walled steel combined column (4) on the basis of the site. Step 3, on-site assembly: sequentially installing the thin-walled steel combined column (4), thin-walled steel combined beam (5) and thin-walled steel combined plate (6) on the basis of the site to form the thin-walled steel frame (2). Step 4, steel bar construction: according to the design requirements, adding additional tensioned steel bars (10) and additional shear bars (11) at the required nodes of the thin-walled steel frame (2). Step 5, pipeline pre-burying: according to the design requirements, pre-burying pipelines or line boxes in the cavities of the thin-walled steel frame (2). Step 6, formwork assembly: after the inspection of node main materials and steel bars is completed, assembling the concrete pouring formwork to attach and install the concrete pouring formwork on the thin-walled steel frame (2). Step 7, pouring concrete: pouring concrete and vibrating to make the concrete pouring compact to form the concrete protection layer (1) and the concrete pouring body (3). Step 8, formwork removal: after the completion of concrete curing, removing the formwork, checking the surface integrity of the concrete and plugging the bolt hole positions.

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