Fabricated concrete filled steel tubular column-double steel plate combined anti-explosion wall and construction method thereof

Abstract

The invention discloses a fabricated concrete-filled steel tubular column-double steel plate combined anti-explosion wall and a construction method thereof.The fabricated concrete-filled steel tubular column-double steel plate combined anti-explosion wall comprises a double steel plate combined wall body, the double steel plate combined wall body comprises a set of oppositely-arranged outer layer steel plates and a set of oppositely-arranged partition plates; the partition plate divides the outer-layer steel plate into a wall body plate and a connecting plate, and the wall body plate and the partition plate define a first cavity used for being filled with concrete; the steel pipe concrete column comprises a steel pipe used for being filled with concrete and a short-limb steel plate connected with the steel pipe, and the short-limb steel plate and the connecting plate are connected and define a second cavity used for being filled with grouting materials. According to the invention, a novel shearing force connection form and an edge constraint component are provided, so that the purpose of rapid construction in wartime can be achieved while the requirements of high lateral force resistance and stronger out-of-plane impact shear resistance of a protection project are met.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of protective engineering, and particularly relates to a fabricated steel pipe concrete column-double steel plate composite blast wall and a construction method thereof. BACKGROUND

[0002] The double-layer steel plate concrete composite wall has the advantages of high bearing capacity, high ductility and light weight, and has been widely used in building engineering. The common shear key form of the double-layer steel plate concrete composite wall is mainly shear bolt. However, the shear bolt can only better transfer the in-plane shear force received by the composite wall; for the blast wall mainly bearing out-of-plane explosion impact load, the shear bolt is difficult to play a good role. In addition, although the existing double-layer steel plate concrete composite wall reduces the steel binding and formwork process during on-site construction, it still needs to be cast on site on a large scale, and the amount of on-site wet work is large, and the construction period is long.

[0003] Therefore, in order to speed up the construction speed of the double-layer steel plate concrete composite wall and improve the out-of-plane blast and impact resistance of the double-layer steel plate concrete composite wall, it is necessary to study a new double-steel plate composite blast wall. SUMMARY

[0004] In order to solve the problems in the prior art, the present application provides a fabricated steel pipe concrete column-double steel plate composite blast wall and a construction method thereof, which has a new type of shear connection form and an edge restraint component. The new type of shear connection form can enhance the out-of-plane blast and impact resistance of the structure, and the edge restraint component can further improve the bending bearing capacity of the double-steel plate composite wall. More importantly, the new double-steel plate composite blast wall proposed by the present application can achieve the purpose of rapid construction in wartime while having good mechanical properties.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is:

[0006] In a first aspect, a fabricated steel pipe concrete column-double steel plate composite blast wall is provided, comprising: a double-steel plate composite wall, the double-steel plate composite wall comprising a set of oppositely arranged outer steel plates and a set of oppositely arranged partition plates, the partition plates separating the outer steel plates into wall plates and connecting plates, the wall plates and the partition plates enclosing a cavity one for filling concrete; a steel pipe concrete column, the steel pipe concrete column comprising a steel pipe for filling concrete and a short-limb steel plate connected with the steel pipe, the short-limb steel plate being connected with the connecting plates and enclosing a cavity two for filling grouting material.

[0007] Further, a plurality of L-shaped tension steel plates are longitudinally spaced apart on the side of the wall plate facing the cavity one.

[0008] Further, the free ends of the L-shaped tensioned steel plates on the two wall panels are staggered and arranged.

[0009] Further, a plurality of shear studs are arranged on the side of the partition panel away from the cavity one.

[0010] A plurality of shear studs are arranged on the side of the cavity two.

[0011] Further, the spacing of the shear studs is determined according to the following formula:

[0012] ;

[0013] Wherein, s is the spacing of the shear studs; f y is the yield strength of the steel material; t is the thickness of the single-layer steel plate.

[0014] Further, the connecting plate of the short-leg steel plate and the double-steel plate composite wall arranged on the concrete-filled steel tubular column is connected by a tensioned bolt.

[0015] Further, the short-leg steel plate and the connecting plate are provided with anchor holes for mounting the tensioned bolt.

[0016] Further, the partition panel is welded to the outer steel plate; and the short-leg steel plate is welded to the steel pipe.

[0017] In a second aspect, a construction method of the prefabricated concrete-filled steel tubular column-double-steel plate composite blast-resistant wall is provided, including: manufacturing the double-steel plate composite wall; manufacturing the concrete-filled steel tubular column; connecting the manufactured double-steel plate composite wall and the concrete-filled steel tubular column through the short-leg steel plate and the connecting plate, filling the grouting material in the cavity two surrounded by the short-leg steel plate and the connecting plate, and completing the construction of the prefabricated concrete-filled steel tubular column-double-steel plate composite blast-resistant wall.

[0018] Further, the manufacturing of the double-steel plate composite wall includes: welding the L-shaped tensioned steel plate to the outer steel plate; welding the shear stud to the partition panel; welding the outer steel plate with the welded L-shaped tensioned steel plate and the partition panel with the welded shear stud to form the cavity one, and pouring the concrete in the cavity one; the manufacturing of the concrete-filled steel tubular column includes: pouring the concrete in the steel pipe and welding the short-leg steel plate and the shear stud to the steel pipe.

[0019] Compared with the prior art, the present application has the beneficial effects: the present application sets up a double-steel-plate composite wall and a steel pipe concrete column, the double-steel-plate composite wall comprises a set of oppositely arranged outer steel plates and a set of oppositely arranged partition plates, the partition plates separate the outer steel plates into wall plates and connecting plates, the wall plates and the partition plates enclose a cavity one for filling concrete, the steel pipe concrete column comprises a steel pipe for filling concrete and a short-limb steel plate connected with the steel pipe, the short-limb steel plate is connected with the connecting plates and encloses a cavity two for filling grouting material, the steel pipe filled with concrete constitutes an edge constraint member of the double-steel-plate composite wall, which can further improve the bending and shearing resistance of the wall, and the cavity two filled with grouting material can realize effective connection between the double-steel-plate composite wall and the steel pipe concrete column. The edge constraint member in the present application has excellent mechanical properties and good workability, which can meet the high lateral force resistance requirement of the protective engineering and achieve the purpose of rapid construction in wartime. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a transverse sectional view of a fabricated steel pipe concrete column-double-steel-plate composite blast-resistant wall provided by the embodiment of the present application;

[0021] Figure 2 is an elevation view of a fabricated steel pipe concrete column-double-steel-plate composite blast-resistant wall provided by the embodiment of the present application;

[0022] Figure 3 is a schematic view of the connection relationship between the L-shaped tension steel plate and the outer steel plate in the embodiment of the present application;

[0023] Figure 4 is a schematic view of the connection relationship between the outer steel plate, the partition plate, the L-shaped tension steel plate and the shear bolt in the embodiment of the present application;

[0024] Figure 5 is a schematic view of the sectional structure of the double-steel-plate composite wall in the embodiment of the present application;

[0025] Figure 6 is a schematic view of the connection relationship between the steel pipe, the short-limb steel plate and the shear bolt in the embodiment of the present application;

[0026] Figure 7 is a schematic view of the sectional structure of the steel pipe concrete column in the embodiment of the present application;

[0027] Figure 8 is a schematic view of the connection relationship between the double-steel-plate composite wall and the steel pipe concrete column in the embodiment of the present application;

[0028] In the figure: 1, outer steel plate; 11, wall plate; 12, connecting plate; 2, partition plate; 3, L-shaped tension steel plate; 4, shear bolt; 5, concrete; 6, steel pipe; 7, short-limb steel plate; 8, tension bolt; 9, grouting material. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0030] Example 1

[0031] like Figures 1-8 As shown, a prefabricated steel-concrete composite column-double steel plate blast-resistant wall includes a double steel plate composite wall and a steel-concrete composite column. The double steel plate composite wall includes a set of oppositely arranged outer steel plates 1 and a set of oppositely arranged partitions 2. The partitions 2 divide the outer steel plates 1 into wall panels 11 and connecting plates 12. The wall panels 11 and the partitions 2 form a cavity one for filling concrete 5. The steel-concrete composite column includes a steel pipe 6 for filling concrete 5 and short-limb steel plates 7 connected to the steel pipe 6. The short-limb steel plates 7 are connected to the connecting plates 12 and form a cavity two for filling grout 9.

[0032] like Figures 1-4 As shown, several L-shaped tie plates 3 are provided on the side of the wall panel 11 facing the cavity. The L-shaped tie plates 3 are vertically spaced and welded to opposite sides of the wall panel 11; the free ends of the L-shaped tie plates 3 on the two wall panels 11 are staggered and stacked. Two rectangular partitions 2 are respectively welded to the inner side of the outer steel plate 1, and several shear studs 4 are provided on the side of the partition 2 away from the cavity; the shear studs 4 are vertically spaced and arranged on the outer side of the rectangular partition 2.

[0033] like Figure 5 As shown, concrete 5 is poured into cavity 1 to complete the construction of the double steel plate composite wall.

[0034] like Figure 6 As shown, a short-limb steel plate 7 and shear studs 4 are welded to one side of the rectangular steel pipe 6. The shear studs 4 are arranged vertically at intervals on one side of the rectangular steel pipe 6 located in cavity two.

[0035] In this invention, the spacing of the shear studs 4 is determined according to the following formula:

[0036] ;

[0037] Where s is the shear stud spacing; f y t represents the yield strength of the steel; t represents the thickness of a single layer of steel plate.

[0038] like Figure 7 As shown, concrete 5 is poured into the rectangular steel pipe 6 to complete the construction of the steel-concrete composite column.

[0039] like Figure 8As shown, anchor holes for installing the tie bolts 8 are arranged on the short limb steel plate 7 and the connecting plate 12. The short limb steel plate 7 and the connecting plate 12 are connected and enclose a cavity two for filling the grouting material 9, and the tie bolts 8 are temporarily fixed by penetrating the anchor holes; then, the cavity two is filled with the grouting material 9 to form a closure; the double-steel-plate composite wall and the concrete-filled steel tubular column are anchored and connected by the tie bolts 8.

[0040] In the application, the outer steel plate can constrain the deformation of the concrete, and improve the anti-blast performance of the blast-resistant wall, and the concrete-filled steel tubular column can further improve the lateral performance of the double-steel-plate wall; the double-steel-plate composite wall and the concrete-filled steel tubular column involved in the application can be manufactured and poured in the factory, and meet the characteristics of industrialization and standardization, so that the anti-blast performance of the protective structure is improved, and the construction speed of the protective engineering is also significantly accelerated, thereby meeting the demand for rapidly constructing the protective engineering in wartime.

[0041] Embodiment two

[0042] Based on the double-steel-plate composite blast-resistant wall of the application, the application provides a construction method of the double-steel-plate composite blast-resistant wall, which comprises the following steps: manufacturing the double-steel-plate composite wall; manufacturing the concrete-filled steel tubular column; connecting the manufactured double-steel-plate composite wall and the concrete-filled steel tubular column through the short limb steel plate 7 and the connecting plate 12, filling the grouting material 9 in the cavity two enclosed by the short limb steel plate 7 and the connecting plate 12, and completing the construction of the double-steel-plate composite blast-resistant wall.

[0043] The double-steel-plate composite wall is manufactured, which comprises the following steps: welding the L-shaped tie plate 3 on the outer steel plate 1; welding the shear bolt 4 on the partition plate 2; welding the outer steel plate 1 with the welded L-shaped tie plate 3 and the partition plate 2 with the welded shear bolt 4 to form a cavity one, and pouring the concrete 5 in the cavity one; the concrete-filled steel tubular column is manufactured, which comprises the following steps: pouring the concrete 5 in the steel pipe 6 and welding the short limb steel plate 7 and the shear bolt 4 on the steel pipe 6.

[0044] The above only describes the preferred embodiments of the application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the application, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the application.

Claims

1. A fabricated steel pipe concrete column-dual steel plate composite blast wall, characterized in that, Comprise: A double-steel-plate composite wall, comprising a set of oppositely arranged outer steel plates (1) and a set of oppositely arranged partition plates (2), the partition plates (2) separating the outer steel plates (1) into wall plates (11) and connecting plates (12), the wall plates (11) and the partition plates (2) enclosing a cavity one for filling concrete (5); A steel pipe concrete column, comprising a steel pipe (6) for filling concrete (5) and a short-limb steel plate (7) connected with the steel pipe (6), the short-limb steel plate (7) being connected with the connecting plate (12) and enclosing a cavity two for filling grouting material (9). 2.The fabricated steel tube concrete column-dual steel plate composite blast wall according to claim 1, characterized in that, A plurality of L-shaped tensioning steel plates (3) are longitudinally spaced on the side of the wall plates (11) facing the cavity one. 3.The fabricated steel tube concrete column-dual steel plate composite blast wall according to claim 2, characterized in that, The free ends of the L-shaped tensioning steel plates (3) on the two wall plates (11) are arranged in an interleaved manner. 4.The fabricated steel tube concrete column-dual steel plate composite blast wall of claim 1, wherein, A plurality of shear studs (4) are arranged on the side of the partition plates (2) away from the cavity one; A plurality of shear studs (4) are arranged on the side of the steel pipe (6) located in the cavity two. 5.The fabricated steel tube concrete column-dual steel plate composite blast wall according to claim 4, characterized in that, The spacing of the shear studs (4) is determined according to the following formula: ； where s is the shear stud spacing; f y is the yield strength of the steel; and t is the thickness of the single steel plate. 6.The fabricated steel tube concrete column-dual steel plate composite blast wall of claim 1, wherein The short-limb steel plate (7) arranged on the steel pipe concrete column is connected with the connecting plate (12) of the double-steel-plate composite wall through a tensioning bolt (8).

7. The fabricated steel tube column-concrete composite wall of claim 6, wherein, Anchor holes for installing the tensioning bolt (8) are arranged on the short-limb steel plate (7) and the connecting plate (12). 8.The fabricated steel tube concrete column-dual steel plate composite blast wall of claim 1, wherein, The partition plates (2) are welded with the outer steel plates (1); the short-limb steel plate (7) is welded on the steel pipe (6).

9. The construction method of the fabricated steel pipe concrete column-dual steel plate composite blast wall according to any one of claims 1-8, characterized in that, Comprise: Manufacturing a double-steel-plate composite wall; Manufacturing a steel pipe concrete column; Connecting the manufactured double-steel-plate composite wall with the steel pipe concrete column through the short-limb steel plate (7) and the connecting plate (12), filling the grouting material (9) in the cavity two enclosed by the short-limb steel plate (7) and the connecting plate (12), and completing the construction of the fabricated steel pipe concrete column-double-steel-plate composite blast-resistant wall.

10. The construction method of the fabricated steel pipe concrete column-double-steel-plate composite blast-resistant wall according to claim 9, characterized in that, Manufacturing a double-steel-plate composite wall comprises: Welding L-shaped tensioning steel plates (3) on the outer steel plates (1); Welding shear studs (4) on the partition plates (2); Welding the outer steel plates (1) with the welded L-shaped tensioning steel plates (3) with the partition plates (2) with the welded shear studs (4), forming a cavity one, and pouring concrete (5) in the cavity one; Manufacturing a steel pipe concrete column comprises pouring concrete (5) in the steel pipe (6) and welding a short-limb steel plate (7) and a shear stud (4) on the steel pipe (6).

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