Building steel structure system and construction method thereof

Abstract

The present invention discloses a building steel structure system and a construction method thereof. The structural system includes a base column, an extension column, and a crossbeam. The bottom of the base column is fixedly connected to a fixed base plate. The base column and the extension column are vertically arranged. The top of the base column and the bottom of the extension column are both fixedly connected to a connecting plate. The extension column is arranged on the top of the base column. The extension column and the base column form a support column. The support columns are arranged in pairs. The crossbeam is arranged between the two extension columns. A suspension seat is fixedly connected to one side of the extension column. A suspension member is arranged between the suspension seat and the crossbeam. A first fastening bolt is arranged between the suspension member and the crossbeam. A second fastening bolt is arranged between the suspension member and the suspension seat. A support seat is arranged on one side of the extension column and below the suspension seat. The top of the support seat contacts the bottom of the crossbeam. The present invention relates to the field of steel structure technology. This building steel structure system and its construction method solve the problem of poor seismic resistance of existing steel structure systems.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structures, in particular to a building steel structure system and a construction method thereof. Background Art

[0002] Steel-structured buildings are a new type of building system, breaking down the boundaries between the real estate, construction, and metallurgical industries to form a new industrial system. Compared to traditional concrete buildings, steel-structured buildings use steel plates or steel sections instead of reinforced concrete, resulting in higher strength. Furthermore, because components can be factory-fabricated and installed on-site, construction time is significantly reduced.

[0003] The components of existing building steel structures are mostly rigidly connected. Once the building is subjected to a large external force and vibrates, the energy consumption of the steel structure mainly depends on the plastic deformation capacity of the components and nodes. The seismic resistance of the steel structure is still poor. Publication No.: CN113914495A discloses an earthquake-resistant building steel structure. By setting a first spring and a fifth spring, the up and down vibration of the connecting column is directly or indirectly suppressed, the vibration amplitude is reduced, and the seismic resistance is enhanced. However, this method is only applicable to light steel structures. When the overall weight presses the spring and there is no deformation space, the seismic effect will be greatly reduced. Therefore, we have made improvements to this and proposed a building steel structure system and a construction method. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a building steel structure system and a construction method thereof, which solves the problem of poor seismic resistance of the existing steel structure system.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a building steel structure system, including a base column, an extension column and a cross beam, the bottom of the base column is fixedly connected to a fixed base plate, the base column and the extension column are vertically arranged, the top of the base column and the bottom of the extension column are fixedly connected to a connecting plate, the extension column is arranged at the top of the base column, the extension column and the base column form a support column, the support column is arranged in pairs, the cross beam is arranged between the two extension columns, one side of the extension column is fixedly connected to a hanging seat, the hanging seat is provided with a hanging member between the cross beam, the hanging member is provided with two and distributed on both sides of the hanging seat, a first fastening bolt is provided between the hanging member and the cross beam, a second fastening bolt is provided between the hanging member and the hanging seat, the second fastening bolt is a low-strength bolt, a support seat is provided on one side of the extension column and located below the hanging seat, the top of the support seat contacts the bottom of the cross beam.

[0008] Preferably, the support seat includes a support plate, a groove is provided on the top of the support plate, the width of the groove is adapted to the width of the crossbeam, a first friction plate is provided on the top of the groove, a gap is provided between the top of the crossbeam and the bottom of the suspension seat, and the gap distance is greater than the depth of the groove.

[0009] Preferably, the suspension member includes a template, a pad is provided on one side of the middle part of the template, the thickness of the pad is smaller than the gap between the top of the beam and the bottom of the suspension seat, and the thickness of the pad is greater than the distance between the top of the first friction plate and the top of the support plate, a second friction plate is provided at the bottom of one side of the template, a first fixing hole is provided at the top of the template, and a second fixing hole is provided on the side of the template.

[0010] Preferably, a third fastening bolt is provided between the two connecting plates, a reinforcing plate is further provided between the base column and the extension column, and a fourth fastening bolt is provided between the reinforcing plate and the base column and the extension column.

[0011] Preferably, the reinforcing plate includes a plate body, a limiting cylinder is provided on one side of the plate body, a through hole adapted to the limiting cylinder is provided on the surface of the plate body, and a third fixing hole is further provided on the surface of the plate body.

[0012] Preferably, the surfaces of the base column and the extension column are provided with limiting holes adapted to the limiting cylinder.

[0013] Preferably, the bottom column, extension column and cross beam are made of H-shaped steel, and ribs are provided between the top of the fixed bottom plate and the side surface of the bottom column.

[0014] Preferably, when the support columns are arranged in multiple groups and arranged side by side, the bottom of the bottom column and the top of the extension column are fixedly connected with a stabilizing seat, a diagonal rod is provided between the stabilizing seat and the reinforcing plate, and a fifth fastening bolt is provided at the overlapping position of the two diagonal rods.

[0015] A construction method for a building steel structure system comprises the following steps:

[0016] Step 1: Weld the fixed bottom plate and rib plate to the bottom end of the bottom column, weld the connecting plate to the top end of the bottom column and one end of the extension column, and weld the suspension seat and support seat on one side of the extension column;

[0017] Step 2: Install the base column at the preset position, and then install the extension column;

[0018] Step 3: Use a crane to lift the beam and place it into the groove on the top of the support base;

[0019] Step 4: Install the suspension parts, insert the suspension parts from one side of the suspension base, use bolts to fix the suspension base on both sides of the beam, and then use bolts to fix the suspension base to each other.

[0020] Preferably, in step 2, if supporting columns are arranged side by side, stabilizing seats are installed on one side of the bottom column and one side of the extension column, and then the inclined tie rods are installed, and finally the tie rods are fastened with bolts at the overlapping parts.

[0021] (3) Beneficial effects

[0022] The present invention provides a building steel structure system having the following beneficial effects:

[0023] By setting a suspension seat and a support seat on one side of the extension column, the crossbeam is placed on the top of the support seat, and connected to the suspension seat by a suspension member. When vibration occurs, the second fastening bolt made of low-strength bolts breaks, and friction occurs between the suspension member and the suspension seat and between the crossbeam and the support seat, absorbing energy, and turning the original rigid connection into a flexible connection, avoiding plastic deformation at the connection and improving seismic resistance. During construction, the welding part is completed in the factory and fixed on site with bolts, which greatly improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the main view of the structure of the present invention;

[0025] Figure 2 It is a side view of the structure of the present invention;

[0026] Figure 3 For the present invention Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 For the present invention Figure 1 Enlarged view of point B in the middle;

[0028] Figure 5 It is a structural schematic diagram of the reinforcement plate of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the suspension member of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the support seat of the present invention.

[0031] In the figure: 1-base column, 2-extension column, 3-cross beam, 4-fixed base plate, 5-rib plate, 6-connecting plate, 7-third fastening bolt, 8-reinforcement plate, 81-plate body, 82-plate body, 83-third fixing hole, 9-fourth fastening bolt, 10-suspension seat, 11-suspension part, 111-type plate, 112-pad, 113-second friction plate, 114-first fixing hole, 115-second fixing hole, 12-first fastening bolt, 13-second fastening bolt, 14-stabilizing seat, 15-oblique tie rod, 16-fifth fastening bolt, 17-support seat, 171-support plate, 172-first friction plate. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-4 The present invention provides a technical solution: a building steel structure system, including a base column 1, an extension column 2 and a cross beam 3, the bottom of the base column 1 is fixedly connected with a fixed base plate 4, the base column 1, the extension column 2 and the cross beam 3 are made of H-shaped steel, and a rib 5 is arranged between the top of the fixed base plate 4 and the side of the base column 1.

[0034] The bottom column 1 and the extension column 2 are arranged vertically, and the top end of the bottom column 1 and the bottom end of the extension column 2 are fixedly connected with a connecting plate 6. The extension column 2 is arranged on the top of the bottom column 1. The extension column 2 and the bottom column 1 form a support column. According to different height requirements, multiple extension columns 2 can be set. The support columns are arranged in pairs. The cross beam 3 is arranged between the two extension columns 2. One side of the extension column 2 is fixedly connected with a suspension seat 10. A suspension member 11 is arranged between the suspension seat 10 and the cross beam 3. There are two suspension members 11 and they are distributed on both sides of the suspension seat 10. The suspension members 11 and the cross beam 3 are connected. A first fastening bolt 12 is arranged between the beams 3. The first fastening bolt 12 is a high-strength bolt, which can ensure a stable connection with the beam 3 even in the event of an earthquake. A second fastening bolt 13 is arranged between the hanger 11 and the suspension seat 10. The second fastening bolt 13 is a low-strength bolt. When a vibration occurs, the shear force causes the second fastening bolt 13 to break, and the hanger 11 is slidably connected to the suspension seat 10. A support seat 17 is arranged on one side of the extension column 2 and below the suspension seat 10. The top of the support seat 17 contacts the bottom of the beam 3.

[0035] The support seat 17 includes a support plate 171. A groove is provided on the top of the support plate 171. The width of the groove is adapted to the width of the crossbeam 3. A first friction plate 172 is provided on the top of the groove. A gap is provided between the top of the crossbeam 3 and the bottom of the suspension seat 10. The gap distance is greater than the depth of the groove, ensuring that the crossbeam 3 can be placed in the groove. The groove limits the crossbeam on both sides to prevent slipping.

[0036] The suspension member 11 includes a template 111. The template 111 has a structure as shown in the attached Figure 6As shown, a pad 112 is provided on one side of the middle part of the template 111, and the thickness of the pad 112 is smaller than the gap between the top of the beam 3 and the bottom of the suspension seat 10, and the thickness of the pad 112 is greater than the distance between the top of the first friction plate 172 and the top of the support plate 171. A second friction plate 113 is provided at the bottom of one side of the template 111, a first fixing hole 114 is provided at the top of the template 111, and a second fixing hole 115 is provided on the side of the template 111. When vibration occurs, the first friction plate 172 and the second friction plate 113 rub against the metal surface to absorb energy, so that the beam 3 and the support column are flexibly connected to avoid plastic deformation and improve the anti-seismic effect. The first friction plate 172 and the second friction plate 113 can be made of the same material as the brake pad to improve durability.

[0037] A third fastening bolt 7 is arranged between the two connecting plates 6, a reinforcing plate 8 is further arranged between the bottom column 1 and the extension column 2, and a fourth fastening bolt 9 is arranged between the reinforcing plate 8 and the bottom column 1 and the extension column 2. The third fastening bolt 7 and the fourth fastening bolt 9 are high-strength bolts to ensure the stability of the connection between the bottom column 1 and the extension column 2. Since a gap is provided between the top of the beam 3 and the bottom of the suspension seat 10, it can be used to absorb vibrations in the vertical direction. Since a pad 112 is provided, the beam 3 will not fall out of the groove when vibrations occur in the vertical direction, thereby ensuring the stability of the beam 3.

[0038] The reinforcing plate 8 includes a plate body 81, a limiting cylinder 82 is provided on one side of the plate body 81, a through hole adapted to the limiting cylinder 82 is provided on the surface of the plate body 81, a third fixing hole 83 is also provided on the surface of the plate body 81, and limiting holes adapted to the limiting cylinder 82 are provided on the surfaces of the base column 1 and the extension column 2. Through the cooperation between the limiting cylinder 82 and the limiting hole, the shear force borne by the fourth fastening bolt 9 is reduced, thereby ensuring the stability of the connection between the base column 1 and the extension column 2.

[0039] When multiple groups of support columns are arranged side by side, the bottom of one side of the base column 1 and the top of one side of the extension column 2 are fixedly connected with a stabilizing seat 14, and a diagonal tie rod 15 is provided between the stabilizing seat 14 and the reinforcing plate 8. A fifth fastening bolt 16 is provided at the overlapping position of the two diagonal tie rods 15, thereby improving the overall stability.

[0040] A construction method for a building steel structure system, characterized in that it comprises the following steps:

[0041] Step 1: Weld the fixed bottom plate and rib plate to the bottom end of the bottom column, weld the connecting plate to the top end of the bottom column and one end of the extension column, and weld the suspension seat and support seat on one side of the extension column;

[0042] Step 2: Install the base column at the preset position, and then install the extension column;

[0043] Step 3: Use a crane to lift the beam and place it into the groove on the top of the support base;

[0044] Step 4: Install the suspension parts, insert the suspension parts from one side of the suspension base, use bolts to fix the suspension base on both sides of the beam, and then use bolts to fix the suspension base to each other.

[0045] In step 2, if you set up side-by-side support columns, install the stabilizing base on one side of the base column and one side of the extension column, then install the diagonal tie rods, and finally fasten them with bolts at the overlapping points of the tie rods.

[0046] Step 1 can be welded directly in the factory. Before installing the bottom column, the concrete base needs to be prefabricated on site, which can be assembled quickly.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A building steel structure system, comprising a base column (1), an extension column (2) and a crossbeam (3), characterized in that: The bottom of the bottom column (1) is fixedly connected to a fixed bottom plate (4), the bottom column (1) and the extension column (2) are vertically arranged, the top end of the bottom column (1) and the bottom end of the extension column (2) are fixedly connected to a connecting plate (6), the extension column (2) is arranged on the top of the bottom column (1), the extension column (2) and the bottom column (1) form a support column, the support columns are arranged in pairs, the cross beam (3) is arranged between the two extension columns (2), one side of the extension column (2) is fixedly connected to a suspension seat (10), the suspension A suspension member (11) is provided between the base (10) and the crossbeam (3), two suspension members (11) are provided and distributed on both sides of the suspension base (10), a first fastening bolt (12) is provided between the suspension member (11) and the crossbeam (3), a second fastening bolt (13) is provided between the suspension member (11) and the suspension base (10), and the second fastening bolt (13) is a low-strength bolt, a support base (17) is provided on one side of the extension column (2) and below the suspension base (10), and the support base (17) is provided on the lower side of the extension column (2). The top of the support seat (17) contacts the bottom of the crossbeam (3), the support seat (17) includes a support plate (171), the top of the support plate (171) is provided with a groove, the width of the groove is adapted to the width of the crossbeam (3), the top of the groove is provided with a first friction plate (172), a gap is provided between the top of the crossbeam (3) and the bottom of the suspension seat (10), and the gap distance is greater than the depth of the groove; the suspension member (11) includes a template (111), the middle of the template (111) A pad (112) is provided on one side, the thickness of the pad (112) is smaller than the gap between the top of the crossbeam (3) and the bottom of the suspension seat (10), and the thickness of the pad (112) is greater than the distance between the top of the first friction plate (172) and the top of the support plate (171), a second friction plate (113) is provided at the bottom of one side of the template (111), a first fixing hole (114) is provided at the top of the template (111), and a second fixing hole (115) is provided on the side of the template (111).

2. A building steel structure system according to claim 1, characterized in that: A third fastening bolt (7) is provided between the two connecting plates (6), a reinforcing plate (8) is further provided between the base column (1) and the extension column (2), and a fourth fastening bolt (9) is provided between the reinforcing plate (8), the base column (1), and the extension column (2).

3. A building steel structure system according to claim 2, characterized in that: The reinforcing plate (8) comprises a plate body (81), a limiting cylinder (82) is provided on one side of the plate body (81), a through hole adapted to the limiting cylinder (82) is provided on the surface of the plate body (81), and a third fixing hole (83) is also provided on the surface of the plate body (81).

4. A building steel structure system according to claim 2, characterized in that: The surfaces of the base column (1) and the extension column (2) are provided with limiting holes adapted to the limiting cylinder (82).

5. The building steel structure system according to claim 1, characterized in that: The bottom column (1), the extension column (2) and the crossbeam (3) are made of H-shaped steel, and a rib plate (5) is provided between the top of the fixed bottom plate (4) and the side surface of the bottom column (1).

6. A building steel structure system according to claim 2, characterized in that: When the support columns are arranged in multiple groups and arranged side by side, the bottom of one side of the base column (1) and the top of one side of the extension column (2) are fixedly connected with a stabilizing seat (14), an inclined rod (15) is provided between the stabilizing seat (14) and the reinforcing plate (8), and a fifth fastening bolt (16) is provided at the overlapping position of the two inclined rods (15).

7. A construction method for a building steel structure system according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Weld the fixed bottom plate and rib plate to the bottom end of the bottom column, weld the connecting plate to the top end of the bottom column and one end of the extension column, and weld the suspension seat and support seat on one side of the extension column; Step 2: Install the base column at the preset position, and then install the extension column; Step 3: Use a crane to lift the beam and place it into the groove on the top of the support base; Step 4: Install the suspension parts, insert the suspension parts from one side of the suspension base, use bolts to fix the suspension base on both sides of the beam, and then use bolts to fix the suspension base to each other.

8. The construction method of a building steel structure system according to claim 7, characterized in that: In step 2, when setting up the support columns side by side, install the stabilizing base on one side of the base column and one side of the extension column, then install the diagonal tie rods, and finally fasten them with bolts at the overlapping points of the tie rods.

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