Large-span column-free arc-structure steel reinforced concrete structure of subway station

Abstract

The large-span column-free arc-shaped structural steel reinforced concrete structure comprises section steel columns and section steel beams, the section steel columns are arranged on the two sides of the bottom of the subway station and located on the inner sides of fender posts, the tops of the section steel columns are connected through the section steel beams, and the section steel beams are formed by transversely connecting a plurality of section steel beam components. Every two adjacent section steel beam components are connected through a first connecting plate and a second connecting plate, each section steel beam component is formed by longitudinally connecting a plurality of section steel beam assemblies, every two adjacent section steel beam assemblies are connected through a third connecting plate, each section steel beam assembly comprises two oppositely-arranged I-shaped steel, and first batten plates are installed in oppositely-arranged notches of the two I-shaped steel. Second batten plates are installed in the other notches of the two I-beams, and toggle pins are arranged on the upper wing plates and the lower wing plates of the I-beams. The utility model has the advantages that the section steel column and the section steel beam are formed, and the section steel beam adopts a split structure, so that the problems of hoisting and mounting of the section steel beam and the section steel column are solved, and the stability of the whole structure is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of subway stations, in particular to a large-span column-free arc-shaped structural steel-concrete structure of a subway station. Background Art

[0002] At present, the domestic research on steel-concrete has drawn the following conclusions: 1. Steel-concrete has excellent stress-bearing performance and is widely used in buildings with large spans and fewer columns; 2. In on-site construction, measures must be taken to integrate steel and concrete to give full play to the advantages of both; 3. Compared with steel structure buildings, steel-concrete has better overall stability, greater bending strength, good fire resistance, and low project cost; 4. Compared with reinforced concrete buildings, steel-concrete can withstand larger loads, has strong deformation resistance, and has better earthquake resistance; 5. Compared with traditional reinforced concrete structures, steel-concrete structures can also improve the space utilization rate of buildings and reduce building deformation. This structure has been widely used in buildings with large spans, fewer columns, and large upper loads.

[0003] During the construction of subway stations, the following difficulties are usually encountered: 1. The problem of lifting and installing steel beams and steel columns in deep foundation pits; 2. The problem of steel bar binding after the installation of steel beams and columns; 3. The problem of beam-column node installation and steel bar binding concrete pouring.

[0004] Therefore, there is a need for a large-span, column-free, curved steel-concrete structure for a subway station that can solve the above problems. Summary of the invention

[0005] The purpose of the utility model is to provide a large-span column-free arc-shaped steel-concrete structure of a subway station based on the above-mentioned deficiencies in the prior art, which is composed of steel columns and steel beams, and the steel beams adopt a split structure, which not only solves the problem of lifting and installing steel beams and steel columns, but also ensures the stability of the overall structure.

[0006] The purpose of this utility model is achieved by the following technical solutions:

[0007] A large-span column-free arc-shaped steel-concrete structure of a subway station, comprising steel columns and steel beams, wherein the steel columns are arranged on both sides of the bottom of the subway station and located on the inner side of the retaining piles, the tops of the steel columns are connected by the steel beams, the steel beams are formed by a plurality of steel beam components connected transversely, adjacent steel beam components are connected by a first connecting plate and a second connecting plate, the steel beam components are formed by a plurality of steel beam assemblies connected longitudinally, adjacent steel beam assemblies are connected by a third connecting plate, the steel beam assemblies comprise two oppositely arranged I-beams, first tie plates are installed in oppositely arranged notches of the two I-beams, second tie plates are installed in the other notches of the two I-beams, and bolts are provided on the upper wing plate and the lower wing plate of the I-beam.

[0008] The steel column is an I-beam structure, the steel beam is connected to the wing plate of the steel column, the steel column is anchored by the steel plate at its bottom, the bottom of the web of the steel column is provided with stiffening ribs, and the left wing plate and the right wing plate of the steel column are both provided with bolts.

[0009] The top of the steel column is sequentially installed with a first end plate, a second end plate and a third end plate, wherein the first end plate is installed at the very top of the steel column, the second end plate is positioned at the same height as the upper wing plate of the I-beam of the steel beam assembly, the third end plate is positioned at the same height as the lower wing plate of the I-beam of the steel beam assembly, and the second end plate and the third end plate are both installed in the groove of the steel column.

[0010] The first connecting plate is fixed to the upper wing plates of the I-beams of two adjacent steel beam components by bolts, and the second connecting plate is fixed to the web plates of the I-beams of two adjacent steel beam components by bolts.

[0011] The third connecting plate is fixed to the second connecting plates of two adjacent steel beam assemblies by bolts.

[0012] Steel bars are arranged around the steel columns and the steel beams, and the steel columns, the steel beams and the steel bars are all wrapped with concrete.

[0013] The utility model has the advantages that it is composed of a steel column and a steel beam, and the steel beam adopts a split structure, which not only solves the problem of hoisting and installing the steel beam and the steel column, but also ensures the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a cross-sectional view of a large-span column-free curved steel-concrete structure of a subway station of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection between the steel column and the steel beam of the utility model;

[0016] Figure 3 It is a side view of the utility model steel beam;

[0017] Figure 4 It is a cross-sectional view of the utility model steel beam;

[0018] Figure 5 It is a partial diagram of the utility model steel beam;

[0019] Figure 6 It is a structural schematic diagram of the utility model steel column. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0021] like Figures 1 to 6 As shown, the marks in the figure represent respectively:

[0022] Steel column 1, steel beam 2, retaining pile 3, I-beam 4, first gusset plate 5, second gusset plate 6, bolt 7, first connecting plate 8, second connecting plate 9, third connecting plate 10, steel plate 11, anchor bolt 12, stiffening rib 13, first end plate 14, second end plate 15, third end plate 16, steel bar 17.

[0023] Example: Figures 1 to 6 As shown, this embodiment relates to a large-span column-free arc-shaped steel-concrete structure of a subway station, which mainly includes steel columns 1, steel beams 2 and steel bars 17. The steel columns 1 are arranged on both sides of the bottom of the subway station and are located on the inner side of the retaining piles 3. The tops of the steel columns 1 are connected by steel beams 2. The steel bars 17 are arranged around the steel columns 1 and the steel beams 2. The steel columns 1, the steel beams 2 and the steel bars 17 are all wrapped with concrete to form a steel-concrete structure. The arc-shaped structure of the subway station is located above the steel-concrete structure.

[0024] like Figures 1 to 5As shown, the steel beam 2 adopts a split structure, which can be hoisted into the foundation pit and is convenient for subsequent assembly. In this embodiment, the steel beam 2 is formed by connecting three steel beam components horizontally, and each steel beam component is formed by connecting two steel beam components longitudinally. The steel beam component includes two oppositely arranged I-beams 4, and the first gussets 5 are installed in the oppositely arranged (facing each other) notches of the two I-beams 4. The first gussets 5 are fixedly connected with two wing plates and a web of the two I-beams 4. The other notches of the two I-beams are installed with second gussets 6. The second gussets 6 are fixedly connected with two wing plates and a web of the I-beams 4. The first gussets 5 and the second gussets 6 can strengthen the overall strength of the I-beam 4. Bolts 7 are welded on the upper and lower wing plates of the I-beam 4, and the bolts 7 are arranged along the length direction of the I-beam 4. Adjacent steel beam components are connected by a first connecting plate 8 and a second connecting plate 9, and adjacent steel beam assemblies are connected by a third connecting plate 10. The first connecting plate 8 is fixed to the upper wing plates of the I-beams 4 of two adjacent steel beam components by bolts, the second connecting plate 9 is fixed to the webs of the I-beams 4 of two adjacent steel beam components by bolts, and the third connecting plate 10 is fixed to the second connecting plate 6 of two adjacent steel beam assemblies by bolts.

[0025] like Figure 1 , Figure 2 as well as Figure 6 As shown, the steel column 1 is an I-beam structure, a steel plate 11 is welded at the bottom of the steel column 1, and the steel plate 11 is anchored by an anchor bolt 12, thereby realizing the anchoring of the steel column 1, and a stiffening rib 13 is provided at the bottom of the web of the steel column 1 to strengthen the bottom strength of the steel column 1. Bolts 7 are welded on the left and right wing plates of the steel column 1, and the bolts 7 are arranged along the height direction of the steel column 1. The steel beam 2 is connected to a wing plate of the same steel column 1, and the first end plate 14, the second end plate 15 and the third end plate 16 are installed on the top of the steel column 1 from top to bottom. The first end plate 14 is installed on the top of the steel column 1, the second end plate 15 is at the same height as the upper wing plate of the I-beam 4 of the steel beam assembly, and the third end plate 16 is at the same height as the lower wing plate of the I-beam 4 of the steel beam assembly. The second end plate 15 and the third end plate 16 are both installed in the groove of the steel column 1, and the second end plate 15 (the third end plate 16) is fixedly connected to the two wing plates and a web plate of the same steel column 1. The arrangement of the first end plate 14, the second end plate 15 and the third end plate 16 can strengthen the strength of the top of the steel column 1.

[0026] The beneficial technical effect of this embodiment is that it is composed of steel columns and steel beams, and the steel beams adopt a split structure, which not only solves the problem of lifting and installing the steel beams and steel columns, but also ensures the stability of the overall structure.

[0027] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A large-span column-free curved steel-concrete structure for a subway station, characterized in that: It includes steel columns and steel beams. The steel columns are arranged on both sides of the bottom of the subway station and located on the inner side of the retaining piles. The tops of the steel columns are connected by the steel beams. The steel beams are formed by a plurality of steel beam components connected transversely. Adjacent steel beam components are connected by a first connecting plate and a second connecting plate. The steel beam components are formed by a plurality of steel beam assemblies connected longitudinally. Adjacent steel beam assemblies are connected by a third connecting plate. The steel beam assemblies include two oppositely arranged I-beams. A first tie plate is installed in the oppositely arranged grooves of the two I-beams. A second tie plate is installed in the other grooves of the two I-beams. Bolts are provided on the upper wing plate and the lower wing plate of the I-beam.

2. A subway station large-span column-free curved steel-concrete structure as claimed in claim 1, characterized in that: The steel column is an I-beam structure, the steel beam is connected to the wing plate of the steel column, the steel column is anchored by the steel plate at its bottom, the bottom of the web of the steel column is provided with stiffening ribs, and the left wing plate and the right wing plate of the steel column are both provided with bolts.

3. A subway station large-span column-free curved structural steel-concrete structure as claimed in claim 2, characterized in that: The top of the steel column is sequentially installed with a first end plate, a second end plate and a third end plate, wherein the first end plate is installed at the very top of the steel column, the second end plate is positioned at the same height as the upper wing plate of the I-beam of the steel beam assembly, the third end plate is positioned at the same height as the lower wing plate of the I-beam of the steel beam assembly, and the second end plate and the third end plate are both installed in the groove of the steel column.

4. A subway station large-span column-free curved structural steel-concrete structure as claimed in claim 2, characterized in that: The first connecting plate is fixed to the upper wing plates of the I-beams of two adjacent steel beam components by bolts, and the second connecting plate is fixed to the web plates of the I-beams of two adjacent steel beam components by bolts.

5. The large-span column-free curved steel-concrete structure of a subway station as claimed in claim 1, characterized in that: The third connecting plate is fixed to the second connecting plates of two adjacent steel beam assemblies by bolts.

6. The large-span column-free curved steel-concrete structure of a subway station as claimed in claim 1, characterized in that: Steel bars are arranged around the steel columns and the steel beams, and the steel columns, the steel beams and the steel bars are wrapped with concrete.

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