Anti-seismic steel structure plant

Abstract

The utility model belongs to the technical field of steel structures, and particularly relates to an anti-seismic steel structure factory building which comprises stand columns, eave beams and purlines, the stand columns support the eave beams, and the purlines are transversely lapped on the eave beams. The eave beam is composed of two sections of symmetrical H-shaped steel, and a middle connecting plate and a side connecting plate are arranged at the two ends of the H-shaped steel respectively. The four corners of the middle connecting plate and the four corners of the side connecting plates are provided with a plurality of evenly-distributed kidney-shaped holes, and the kidney-shaped holes are matched with the bolt and nut assemblies so that the H-shaped steel can be connected with one another or connected with the stand columns. The purline is made of C-shaped steel, a through hole is formed in the purline, a brace is inserted into the through hole, and two limiting clamping blocks are installed on the two sides of the purline connecting position of the brace at the interval of more than 1 mm. The stand columns are installed on the bearing platform through bolts, and the bottom of the bearing platform is connected with concrete precast piles. The prefabricated concrete piles are used as foundations, the bolts limited to move are adopted at the connecting positions of the eave beams, the clamping blocks limited to move are adopted at the connecting positions of the purlines and the braces, and the anti-seismic performance can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure technology, specifically relating to an earthquake-resistant steel structure factory building. Background Technology

[0002] Steel structure workshops are widely used in industrial plants, logistics warehouses, and farmers' markets due to their high efficiency, economy, and environmental friendliness. Steel possesses high strength and toughness, and its load-bearing capacity per unit mass is superior to concrete. It is suitable for large-span and high-rise buildings, reducing construction time and improving production efficiency. Furthermore, the construction process generates less dust, noise, and construction waste, meeting environmental protection requirements. The steel used in construction is recyclable, aligning with green building principles.

[0003] For example, Chinese invention patent CN111719912B discloses a steel structure factory building where the main support columns are equipped with first and second reinforcing groups to increase strength and stabilize the first and second reinforcing groups, thus more effectively preventing swaying. However, its foundation and anti-sway rigid structure have insufficient seismic performance. Improving the seismic performance of steel structure factory buildings is crucial for ensuring personnel safety and reducing economic losses, especially in earthquake-prone areas.

[0004] If the factory foundation is soft while the superstructure is rigid, an earthquake may cause uneven settlement or tilting, leading to localized damage to the factory. In areas with loose, saturated sandy soil, earthquakes may cause soil liquefaction, reducing the foundation's bearing capacity and causing overall instability of the factory. Furthermore, steel-structured factory buildings, primarily connected by welding or riveting, are prone to failure after being subjected to seismic shear waves, resulting in the collapse of the entire structure. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this utility model aims to solve the problem that existing steel structure industrial plants suffer from insufficient seismic resistance due to structural or foundation issues, leading to personnel safety concerns and economic losses. The purpose of this utility model is to provide a seismically resistant steel structure industrial plant. It employs precast concrete piles as a foundation, enabling the pile foundation and steel structure to distribute and balance the load. Furthermore, it utilizes bolts with restricted movement at the connection points of the eaves beams (which serve as the main beams) and clamps with restricted movement at the connections between purlins and tie rods. These features absorb some seismic energy during vibrations, acting as a buffer, reducing stress concentration, and preventing brittle failure caused by excessive rigidity.

[0006] To achieve the above objectives, this utility model discloses an earthquake-resistant steel structure factory building, including columns, eaves beams, and purlins. The columns support the eaves beams, and the purlins are horizontally overlapped on the eaves beams.

[0007] The eaves beam consists of two symmetrical H-beams, with a middle connecting plate and a side connecting plate at each end of the H-beams. Multiple evenly spaced oblong holes are provided at the four corners of the middle and side connecting plates. These oblong holes, in conjunction with bolt and nut assemblies, allow the H-beams to connect to each other or to the columns.

[0008] The purlin is made of C-shaped steel and has through holes. A tie rod is inserted into the through holes, and two limit blocks with a spacing of more than 1 mm are installed on both sides of the tie rod at the purlin connection.

[0009] The column is bolted to the bearing platform, and the bottom of the bearing platform is connected to a precast concrete pile.

[0010] According to another embodiment of the present utility model or any of the foregoing embodiments, the steel structure workshop is provided, wherein the purlins are covered with a roof sandwich panel, the upper and lower layers of the roof sandwich panel are color steel plates with a thickness of 0.4mm or more, and the middle layer is a heat-insulating and fireproof sandwich panel.

[0011] According to another embodiment of the present invention or any of the foregoing embodiments, in the steel structure factory building, the columns are connected by horizontal bars, and scissor bracing is provided between the columns and the horizontal bars.

[0012] According to another embodiment of the present utility model or any of the foregoing embodiments, the steel structure workshop is provided in which the outer side of the column is covered with a wall sandwich panel, the upper and lower layers of the wall sandwich panel are color steel plates with a thickness of 0.4mm or more, and the middle layer is a heat-insulating and fireproof sandwich panel.

[0013] According to another embodiment of the present invention or any of the foregoing embodiments, in the steel structure workshop, each of the foundations is connected to four or more precast concrete piles at its bottom by a sleeve or end plate.

[0014] According to another embodiment of the present invention or any of the foregoing embodiments, the steel structure factory building has an inverted V-shaped roof beam and a drainage ditch is provided on the roof sandwich panel.

[0015] According to another embodiment of the present invention or any of the foregoing embodiments, the steel structure workshop is wherein the tie rod is a steel bar with a diameter of 5-12mm.

[0016] According to another embodiment of the present utility model or any of the foregoing embodiments, in the steel structure workshop, the bolts at the bottom of the column are screwed into the sleeves pre-embedded in the upper part of the bearing platform.

[0017] The beneficial effects of this utility model are:

[0018] 1. The earthquake-resistant steel structure factory building described in this utility model uses precast concrete piles as a foundation to transfer the load and seismic force of the superstructure to a stable foundation, which can disperse and balance the load, reduce the possibility of local settlement or tilting, and ensure the overall stability of the factory building.

[0019] 2. Restricted-movement bolts are used at the connection points of the eaves beams, which serve as the main beams, and restricted-movement clamps are used at the connections between purlins and tie rods. These measures absorb some of the seismic energy during vibrations, acting as a buffer, reducing stress concentration, and preventing brittle failure caused by excessive rigidity. The seismic deformation resistance of the connection points ensures reliability even under repeated earthquakes. Attached Figure Description

[0020] Figure 1 This is a schematic cross-sectional view of the middle steel frame of the earthquake-resistant steel structure factory building described in this utility model;

[0021] Figure 2 This is a schematic diagram of the roof purlin arrangement of the earthquake-resistant steel structure factory building described in this utility model;

[0022] Figure 3 for Figure 1 An enlarged schematic diagram of part A;

[0023] Figure 4 This is a schematic diagram of the bolt connection of the middle connecting plate and the side connecting plate of the earthquake-resistant steel structure workshop described in this utility model;

[0024] Figure 5 for Figure 1 An enlarged schematic diagram of part A;

[0025] In the diagram: 1. Roof sandwich panel; 2. Purlin; 3. Wall sandwich panel; 4. Eaves beam; 5. Intermediate connecting plate; 6. Bolt and nut assembly; 7. Column; 8. Foundation; 9. Side connecting plate; 10. Tie rod; 11. Limiting block; 12. Waist-shaped hole; 13. Precast concrete pile. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1:

[0028] like Figure 1 As shown, an earthquake-resistant steel structure factory building includes columns 7, eaves beams 4, and purlins 2. The columns 7 support the eaves beams 4, and the purlins 2 are horizontally overlapped on the eaves beams 4.

[0029] like Figure 1 , 3As shown in Figures 4 and 5, the eaves beam 4 is composed of two symmetrical H-beams. Each end of the H-beam has a middle connecting plate 5 and a side connecting plate 9. Multiple evenly arranged oblong holes 12 are provided at the four corners of the middle connecting plate 5 and the side connecting plate 9. These oblong holes 12 cooperate with bolt and nut assemblies 6 to connect the H-beams to each other or to the columns 7.

[0030] like Figure 1 , 2 As shown, the purlin 2 is made of C-shaped steel. The purlin 2 is provided with through holes, and a tie rod 10 is inserted into the through holes. Two limit blocks 11 with a spacing of more than 1 mm are installed on both sides of the tie rod 10 at the connection of the purlin 2.

[0031] like Figure 1 As shown, columns 7 are bolted to foundation 8, and precast concrete piles 13 are connected to the bottom of foundation 8. Horizontal bars connect the columns 7, and scissor bracing is installed between the columns 7 and the horizontal bars. The scissor bracing forms the lateral force resisting system of the steel structure. By forming stable triangular members, it effectively disperses and transfers seismic or wind loads, improving the overall lateral stiffness and stability of the structure. Under seismic loading, the scissor bracing can limit the displacement and torsion of the building, reduce stress concentration caused by local deformation, and lower the risk of localized damage. Each foundation 8 has at least four precast concrete piles 13 connected to its bottom via sleeves or end plates.

[0032] Example 2:

[0033] like Figure 1 As shown, an earthquake-resistant steel structure factory building includes columns 7, eaves beams 4, and purlins 2. The columns 7 support the eaves beams 4, and the purlins 2 are horizontally overlapped on the eaves beams 4.

[0034] like Figure 1 , 3 As shown in Figures 4 and 5, the eaves beam 4 is composed of two symmetrical H-beams. The two ends of the H-beams are respectively provided with a middle connecting plate 5 and a side connecting plate 9. Multiple evenly arranged waist-shaped holes 12 are provided at the four corners of the middle connecting plate 5 and the side connecting plate 9. The waist-shaped holes 12 cooperate with the bolt and nut assembly 6 to connect the H-beams to each other or to the column 7.

[0035] like Figure 1 , 2 As shown, purlin 2 is made of C-shaped steel, and through holes are provided on purlin 2. A tie rod 10 is inserted into the through holes. Two limiting blocks 11 with a spacing of more than 1 mm are installed on both sides of the tie rod 10 at the connection of purlin 2. The tie rod 10 is a steel bar with a diameter of 5-12 mm.

[0036] The columns 7 are bolted to the foundation 8. The bottom of the foundation is connected to a precast concrete pile 13. Horizontal bars connect the columns 7, and scissor braces are installed between the columns 7 and the horizontal bars. The bolts at the bottom of the columns 7 are screwed into sleeves pre-embedded in the upper part of the foundation 8.

[0037] like Figure 1 As shown, the purlin 2 is covered with a roof sandwich panel 1. The upper and lower layers of the roof sandwich panel 1 are color steel plates with a thickness of 0.4mm or more, and the middle layer is a heat-insulating and fireproof sandwich panel. The eaves beam 4 is inverted V-shaped, and a drainage ditch is provided on the roof sandwich panel 1.

[0038] The outer side of the column 7 is covered with a wall sandwich panel 3. The upper and lower layers of the wall sandwich panel 3 are color steel plates with a thickness of more than 0.4mm, and the middle layer is a heat-insulating and fireproof sandwich panel.

[0039] The working principle of this utility model:

[0040] To improve the seismic performance of steel structure workshops, this utility model adopts a two-section H-shaped eaves beam design for the main beam. The two eaves beams 4 are fixed together by an intermediate connecting plate 5, and the eaves beams 4 are fixed to the columns 7 by side connecting plates 9. The intermediate connecting plate 5 and the side connecting plates 9 are connected by bolt and nut assemblies 6 and slotted holes 12. The slotted hole design of the slotted hole 12 allows the connector to slip a certain amount during an earthquake. This small displacement can absorb some seismic energy during the vibration, playing a buffering role, reducing stress concentration, and preventing brittle failure caused by excessive rigidity. The slotted hole prevents the connection from being completely fixed, but provides a certain degree of flexibility when necessary. This flexible connection can effectively extend the deformation capacity of the structure. Compared with traditional welding connection methods, it makes the overall components of the steel structure workshop more resilient under seismic action, avoiding chain failure caused by local overload.

[0041] In this invention, the column 7 is installed on the foundation 8, and the bottom of the foundation 8 is provided with four or more precast concrete piles 13. The pile foundation, by penetrating deep into solid soil layers, transfers the loads and seismic forces of the superstructure to a stable foundation, avoiding the risk of settlement or liquefaction that may occur with shallow foundations due to soft soil, thus ensuring the overall stability of the building. During earthquakes, the unevenness of the foundation soil layers may cause differential settlement, while the pile foundation can disperse and balance the load, reducing the possibility of local settlement or tilting, thereby reducing secondary structural damage caused by uneven foundation.

[0042] The tie rod 10 of this utility model mainly serves to connect various structural components, firmly fixing the purlin 2, roof panel, and other components together to prevent displacement or detachment of components under external forces such as wind pressure and earthquakes. The purlin 2 is provided with through holes, and the tie rod 10 is made of steel bars with a diameter of 5-12mm. The tie rod 10 passes through the holes in the purlin 2. The tie rod 10 on both sides of the purlin 2 is provided with locking blocks to restrict and allow partial movement. While effectively suppressing the torsional and lateral deformation of local components, it can ensure that the roof and the entire factory structure maintain a consistent stress state and a certain displacement space under earthquake action, thus buffering and dissipating earthquake energy.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and characteristics of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A seismic-resistant steel structure factory building, comprising columns (7), eaves beams (4), and purlins (2), wherein the columns (7) support the eaves beams (4), and the purlins (2) are horizontally overlapped on the eaves beams (4). Its features are: The eaves beam (4) is composed of two symmetrical H-beams, with a middle connecting plate (5) and a side connecting plate (9) respectively provided at both ends of the H-beams; the middle connecting plate (5) and the side connecting plate (9) are provided with multiple evenly arranged waist-shaped holes (12) at the four corners, and the waist-shaped holes (12) cooperate with the bolt and nut assembly (6) to connect the H-beams to each other, or to the column (7). The purlin (2) is made of C-shaped steel. A through hole is provided on the purlin (2), and a tie rod (10) is inserted into the through hole. Two limit blocks (11) with a spacing of more than 1 mm are installed on both sides of the tie rod (10) at the connection of the purlin (2). The column (7) is bolted to the foundation (8), and the bottom of the foundation (8) is connected to a precast concrete pile (13).

2. The earthquake-resistant steel structure factory building according to claim 1, characterized in that: The purlin (2) is covered with a roof sandwich panel (1), the upper and lower layers of which are color steel plates with a thickness of 0.4mm or more, and the middle layer is a heat-insulating and fireproof sandwich panel.

3. The earthquake-resistant steel structure factory building according to claim 1, characterized in that: The columns (7) are connected by horizontal bars, and scissor braces are provided between the columns (7) and the horizontal bars.

4. A seismic-resistant steel structure factory building according to any one of claims 1 and 2, characterized in that: The outer side of the column (7) is covered with a wall sandwich panel (3). The upper and lower layers of the wall sandwich panel (3) are color steel plates with a thickness of more than 0.4mm, and the middle layer is a heat-insulating and fireproof sandwich panel.

5. The earthquake-resistant steel structure factory building according to claim 1, characterized in that: Each of the foundations (8) has four or more precast concrete piles (13) connected to its bottom by sleeves or end plates.

6. The earthquake-resistant steel structure factory building according to claim 2, characterized in that: The eaves beam (4) is inverted V-shaped, and a drainage ditch is provided on the roof sandwich panel (1).

7. The earthquake-resistant steel structure factory building according to claim 1, characterized in that: The tie rod (10) is a steel bar with a diameter of 5-12mm.

8. A seismic-resistant steel structure factory building according to claim 1 or 3, characterized in that: The bolts at the bottom of the column (7) are screwed into the sleeves pre-embedded in the upper part of the pier (8).

Images