Connecting part of steel pipe steel rib coal gangue concrete column and section steel beam and construction method thereof

Abstract

The invention relates to a connection part of a steel pipe steel rib coal gangue concrete column and a section steel beam and a construction method thereof, which comprises a connection node of a built-in H-shaped steel pipe column with an upper end plate and a lower end plate and the section steel beam, a core coal gangue concrete column, a semicircular steel column with a bolt hole end plate and a reinforcing plate, and high-strength bolts of the reinforcing plate in the direction of the end plate and in the lateral direction. All the steel members are precisely machined in a machining factory. A small amount of welding and high-strength bolts are adopted for connecting and assembling on the construction site, and finally core coal gangue concrete is poured. According to the construction method, the complex construction environment and high-intensity labor are avoided, the light weight, high strength and energy dissipation capacity of the steel pipe concrete structure are brought into full play, and the excellent bearing capacity, rigidity and ductility of the steel reinforced concrete are utilized. Meanwhile, effective resource utilization of the coal gangue is achieved, and the requirements of modern large-span buildings are met. According to the connecting part, the engineering quality and efficiency are improved, the engineering cost is effectively reduced, and the applicability, safety and stability of the structure are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of building steel tube concrete structure engineering, in particular to a connection part between a steel tube steel frame coal gangue concrete column and a steel beam and a construction method thereof. Background Art

[0002] Gangue is one of the main by-products produced during coal mining and cleaning, usually accounting for 10% to 25% of the total weight of coal mining. During the coal mining process, a large amount of gangue is constantly piled up, which has a huge impact on people's production and life. These gangue piles form huge gangue mountains, occupying a large amount of available land and causing serious impacts on arable land. Spontaneous combustion produces dust and harmful gases. As rainwater pollutes groundwater, explosions, collapses and landslides will also occur, directly endangering people's lives, safety and health. Therefore, the resource utilization of gangue is an issue that needs to be solved urgently. In recent years, steel tube concrete structures have been widely used in the field of civil engineering, and they have good mechanical properties. The combination of external steel tubes, coal gangue concrete and internal I-beams can not only give full play to the characteristics of steel tube concrete structures, which are light and high-strength, but also take advantage of the advantages of steel concrete structures, such as large bearing capacity, high rigidity, ductility and strong resistance to continuous collapse. At the same time, this combination can also turn coal gangue resources into treasure, realize the effective utilization of resources, and also provide an effective new way for the widespread application of coal gangue concrete in the construction field. However, in the overall frame structure, the beam-column connection node plays a vital role and is the key connection point. In actual structures, the stability and safety of the frame structure largely depends on the design of the beam-column connection node. Therefore, for the H-shaped steel tube concrete structure with coal gangue concrete, how to optimize the design of the beam-column connection node to ensure the stability and safety of the overall structure is a problem worthy of in-depth study. Summary of the invention

[0003] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art and provide a connection portion between a steel tube steel frame coal gangue concrete column and a steel beam and a construction method thereof, so as to solve the stability and safety problems of the existing built-in H-shaped steel tube coal gangue concrete column in the overall frame structure.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] The connection parts of steel tube steel frame coal gangue concrete column and steel beam and their construction method include connection nodes of H-shaped steel tube column with upper and lower end plates and steel beam, core coal gangue concrete column, semicircular steel column with bolt hole end plate and reinforcement plate, high-strength bolts in the end plate direction and lateral reinforcement plate. The connection nodes of H-shaped steel tube column with upper and lower end plates and steel beam, semicircular steel column with bolt hole end plate and reinforcement plate, high-strength bolts in the end plate direction and lateral reinforcement plate are all precision-machined in a mechanical processing plant. The connection nodes of H-shaped steel tube column with upper and lower end plates and steel beam are connected longitudinally by welding and in plane direction by high-strength bolts.

[0006] The connection node between the built-in H-shaped steel pipe column with upper and lower end plates and the steel beam includes the built-in H-shaped steel column, the circular steel pipe column with upper and lower end plates, the steel beam, the vertical plate limiter set at the end of the built-in H-shaped steel column, the circular steel pipe reinforcement ring set outside the circular steel pipe column with upper and lower end plates, the stiffening ribs set near the reinforcement ring of the steel beam and the end plate added at the end, which are all connected by factory welding. The longitudinal connection of the built-in H-shaped steel column is positioned and connected by the vertical plate limiter set at the end of the built-in H-shaped steel column and the weld. The circular steel pipe column with upper and lower end plates is connected by high-strength bolts, and the end plates of the steel beam are connected using high-strength bolts.

[0007] The core coal gangue concrete, the connection nodes of the H-shaped steel pipe columns with upper and lower end plates and the steel beams, and the semicircular steel columns with bolt hole end plates and reinforcement plates are transported to the construction site and connected and assembled using welding and high-strength bolts in the end plate direction and lateral reinforcement plates. The core coal gangue concrete is cast with coal gangue commercial concrete.

[0008] The semicircular steel column with bolt hole end plates and reinforcement plates includes half end plates at both ends, reinforcement plates on both sides and a semicircular steel column. The semicircular steel column with bolt hole end plates and reinforcement plates are connected vertically and laterally by high-strength bolts.

[0009] The high-strength bolts in the end plate direction and the lateral reinforcement plate are positioned at the vertical plate limiter set at the end of the built-in H-shaped steel column and the weld is connected, and then the semi-circular steel column is connected vertically and laterally using high-strength bolts.

[0010] The beneficial effects of the present invention are:

[0011] 1. The connection part of the present invention consists of four parts: a connection node between an H-shaped steel pipe column with an upper and lower end plate and a steel beam, a core coal gangue concrete column, a semicircular steel column with an end plate and a reinforcement plate with bolt holes, and high-strength bolts in the direction of the end plate and the lateral reinforcement plate. Except for the weld connection of the built-in H-shaped steel column, the installation of other components is connected by high-strength bolts. Finally, the core coal gangue concrete is poured inside the structure to form a connection part between a steel pipe steel frame coal gangue concrete column and a steel beam. The formation of this connection part is relatively unique. It can not only give full play to the characteristics of the steel pipe concrete structure connection part with light weight, high strength and good energy consumption capacity, but also utilize the advantages of the steel concrete structure connection part with large bearing capacity, large rigidity, ductility and strong resistance to continuous collapse. At the same time, this connection part can also turn coal gangue resources into treasure and realize effective resource utilization.

[0012] 2. The present invention uses coal gangue to replace natural coarse aggregate to prepare concrete, which not only helps to solve the problem of large-scale occupation of arable land by coal gangue, but also can reduce the exploitation of natural sand and gravel raw material resources. It is in line with my country's green building and sustainable development strategy, meets social market demand, promotes the resource utilization of coal gangue, and provides an effective new way for the widespread application of coal gangue concrete in the construction field.

[0013] 3. The four parts of the present invention, namely, the connection node between the H-shaped steel pipe column with upper and lower end plates and the steel beam, the core coal gangue concrete column, the semicircular steel column with bolt hole end plates and reinforcement plates, and the high-strength bolts in the end plate direction and lateral reinforcement plates, are all mechanically designed and factory-produced. The components are relatively precise and accurate, with almost no processing errors. The work can be completed on site only by crane lifting, a small amount of welding, tightening of bolts and on-site commercial concrete pouring, which significantly reduces the work intensity and working environment of workers on the construction site, improves the project quality and work efficiency, shortens the project construction period and saves costs.

[0014] 4. Circular steel pipe reinforcement rings and stiffening ribs are locally provided at the connection parts of the present invention, which meet the design principle of strong nodes. Most of the components are connected by high-strength bolts to meet the structural and mechanical properties. The high-strength bolts can be disassembled or replaced. If the building needs to be disassembled when it reaches the service life, the structure can be dismantled in an orderly manner, and all components can be fully recycled or reused. If, as time goes by, some local components cannot meet the normal use requirements, the components can be quickly replaced to reduce the maintenance cost during the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention provides a schematic diagram of the exploded view of the connection between the steel tube steel frame coal gangue concrete column and the steel beam.

[0016] Figure 2 It is a three-dimensional schematic diagram of the general assembly of the connection parts of the steel tube steel frame coal gangue concrete column and the steel beam provided by the present invention.

[0017] Figure 3 It is an exploded top view of the connection part between the steel tube steel frame coal gangue concrete column and the steel beam provided by the present invention.

[0018] Figure 4 The invention provides a general top view of the connection between the steel tube steel frame coal gangue concrete column and the steel beam.

[0019] Figure 5 It is a left front view of the connection part between the steel tube steel frame coal gangue concrete column and the steel beam provided by the present invention.

[0020] in,

[0021] 1—Connection node between built-in H-shaped steel pipe column with upper and lower end plates and steel beam, 101—built-in H-shaped steel column, 102—circular steel pipe column with upper and lower end plates, 103—circular steel pipe reinforcement ring arranged outside the circular steel pipe column with upper and lower end plates, 104—steel beam perpendicular to the flange direction of built-in H-shaped steel column, 105—steel beam perpendicular to the web direction of built-in H-shaped steel column, 106—vertical plate stopper arranged at the end of built-in H-shaped steel column, 107—bolt hole arranged on the end plate of steel beam, 108—circular steel pipe reinforcement ring arranged outside the circular steel pipe column with upper and lower end plates, End plate with bolt holes at the end of the steel pipe column, 109—stiffening ribs set at the position of the steel beam near the reinforcement ring, 110—end plate set at the end of the steel beam, 2—core coal gangue concrete column, 3—semicircular steel column with end plate and reinforcement plate with bolt holes, 301—semicircular steel column, 302—reinforcement plates on both sides with bolt holes, 303—half end plates at both ends with bolt holes, 4—high-strength bolts in the direction of the end plate and the lateral reinforcement plate, 401—high-strength bolts in the direction of the end plate, 402—high-strength bolts for the lateral reinforcement plate. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and the construction process.

[0023] In order to solve the stability and safety problems of the existing built-in H-shaped steel tube coal gangue concrete columns in the overall frame structure, such as Figures 1 to 5 As shown, the connection part of the steel tube steel frame coal gangue concrete column and the steel beam and its construction method include a connection node (1) between the steel tube column with upper and lower end plates and the steel beam, a core coal gangue concrete column (2), a semicircular steel column (3) with bolt hole end plates and reinforcement plates, and high-strength bolts (4) in the direction of the end plate and the lateral reinforcement plates. The connection node (1) between the steel tube column with upper and lower end plates and the steel beam, the semicircular steel column (3) with bolt hole end plates and reinforcement plates, and the high-strength bolts (4) in the direction of the end plate and the lateral reinforcement plates are all precision-machined in a mechanical processing plant. The connection node (1) between the steel tube column with upper and lower end plates and the steel beam is connected longitudinally by welding and in the plane direction by high-strength bolts.

[0024] The connection node (1) of the built-in H-shaped steel pipe column with upper and lower end plates and the steel beam comprises a built-in H-shaped steel column (101), a circular steel pipe column (102) with upper and lower end plates, a steel beam (105) perpendicular to the flange direction (104) and the web direction of the built-in H-shaped steel column, a vertical plate stopper (106) arranged at the end of the built-in H-shaped steel column, a circular steel pipe reinforcement ring (103) arranged outside the circular steel pipe column with upper and lower end plates, a stiffening rib (109) arranged near the reinforcement ring position of the steel beam, and an end plate (110) added in the end direction, all of which are connected by factory welding. The built-in H-shaped steel column (101) is longitudinally connected by positioning the vertical plate stopper (106) and the weld provided at the end of the built-in H-shaped steel column, the circular steel pipe column (102) with upper and lower end plates is connected by high-strength bolts (401), and the steel beam end plate (110) is connected by high-strength bolts.

[0025] The core gangue concrete (2), the connection node (1) of the H-shaped steel pipe column with upper and lower end plates and the steel beam, and the semicircular steel column (3) with bolt hole end plates and reinforcement plates are transported to the construction site and connected and assembled using welding and high-strength bolts (4) in the end plate direction (303) and the lateral reinforcement plate (302). The core gangue concrete (2) is cast with gangue commercial concrete.

[0026] The semicircular steel column (3) with bolt hole end plates and reinforcement plates comprises half end plates (303) at both ends, reinforcement plates (302) at both sides and a semicircular steel column (301), and the semicircular steel column (3) with bolt hole end plates and reinforcement plates are connected vertically and laterally by high-strength bolts (4).

[0027] The high-strength bolts (4) in the end plate direction and the lateral reinforcement plate are positioned at the vertical plate limiter (106) and welded at the end of the built-in H-shaped steel column at the construction site, and then the semicircular steel column (3) is connected by using the high-strength bolts (4) vertically and laterally.

[0028] The construction process of the present invention comprises the following steps:

[0029] Step 1: According to the construction conditions and people's needs on site, the mechanical design company will accurately design each component, and then the mechanical processing plant will perform precision processing and transport it back to the construction site;

[0030] Step 2, at the construction site, a mechanical vehicle is used to hoist the circular steel pipe column (102) with the upper and lower end plates, accurately position it, and tighten the pre-tightening force of the high-strength bolts at the circular steel pipe column foot to make the circular steel pipe column (102) with the upper and lower end plates vertically fastened and stable;

[0031] Step 3, lifting the connection node (1) of the built-in H-shaped steel pipe column with upper and lower end plates and the steel beam, accurately positioning it with the vertical plate limiter (106) set at the end of the built-in H-shaped steel column, connecting the built-in H-shaped steel column (101) by welding, and then fixing the semicircular steel column (3) with the end plate with bolt holes and the reinforcement plate by high-strength bolts (3), and finally pouring the core coal gangue concrete to form the assembly of the connection part of the steel pipe steel frame coal gangue concrete column and the steel beam;

[0032] Step 4, repeating steps 2, 3, 4 and 5 to complete the assembly of the overall building frame with the connection parts of the steel tube steel frame coal gangue concrete column and the steel beam;

[0033] The above description is only an engineering example of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection part of a steel tube steel frame coal gangue concrete column and a steel beam and a construction method thereof, comprising a connection node (1) between a steel tube column with upper and lower end plates and an H-shaped steel beam, a core coal gangue concrete column (2), a semicircular steel column (3) with bolt hole end plates and a reinforcement plate, and high-strength bolts (4) in the direction of the end plate and the lateral reinforcement plate. The connection node (1) between the steel tube column with upper and lower end plates and an H-shaped steel beam, the semicircular steel column (3) with bolt hole end plates and a reinforcement plate, and high-strength bolts (4) in the direction of the end plate and the lateral reinforcement plate are all precisely processed in a mechanical processing plant. The connection node (1) between the steel tube column with upper and lower end plates and an H-shaped steel beam is connected longitudinally by welding and in plane direction by high-strength bolts.

2. The connection part between the steel tube steel frame coal gangue concrete column and the steel beam and the construction method thereof according to claim 1 is characterized in that A connection node (1) between an internal H-shaped steel pipe column with upper and lower end plates and a steel beam comprises an internal H-shaped steel column (101), a circular steel pipe column (102) with upper and lower end plates, a steel beam (105) perpendicular to the flange direction (104) and the web direction of the internal H-shaped steel column, a vertical plate stopper (106) arranged at the end of the internal H-shaped steel column, a circular steel pipe reinforcement ring (103) arranged outside the circular steel pipe column with upper and lower end plates, a stiffening rib (109) arranged near the reinforcement ring of the steel beam, and an end plate (110) added at the end, all of which are connected by factory welding. The internal H-shaped steel column (101) is longitudinally connected by positioning the vertical plate stopper (106) and welding seams arranged at the end of the internal H-shaped steel column, the circular steel pipe column (102) with upper and lower end plates is connected by high-strength bolts (401), and the steel beam end plate (110) is connected by high-strength bolts.

3. The connection part between the steel tube steel frame coal gangue concrete column and the steel beam and the construction method thereof according to claim 1 is characterized in that The core gangue concrete (2) is a connection node (1) between the H-shaped steel pipe column with upper and lower end plates and the steel beam, and the semicircular steel column (3) with bolt hole end plates and reinforcement plates. The semicircular steel column (3) is transported to the construction site and connected and assembled using welding and high-strength bolts (4) in the direction of the end plates (303) and the lateral reinforcement plates (302). The core gangue concrete (2) is cast using gangue commercial concrete.

4. The connection part between the steel tube steel frame coal gangue concrete column and the steel beam and the construction method thereof according to claim 1 is characterized in that A semicircular steel column (3) with bolt hole end plates and reinforcement plates comprises half end plates (303) at both ends, reinforcement plates (302) at both sides and a semicircular steel column (301), wherein the semicircular steel column (3) with bolt hole end plates and reinforcement plates are connected vertically and laterally by high-strength bolts (4).

5. The connection part between the steel tube steel frame coal gangue concrete column and the steel beam and the construction method thereof according to claim 1 is characterized in that The high-strength bolts (4) in the end plate direction and the lateral reinforcement plate are used to connect the semicircular steel column (3) by vertically and laterally using the high-strength bolts (4) after the vertical plate limiter (106) and the weld seam provided at the end of the built-in H-shaped steel column are positioned and connected.

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