Fabricated steel structure frame and application thereof

Abstract

The invention belongs to the technical field of steel structure frames, and particularly relates to an assembly type steel structure frame and application thereof.The assembly type steel structure frame comprises a steel column and a cross beam, the cross beam is connected with the steel column through a connecting plate, a bearing assembly is installed on the steel column, the bearing assembly comprises a bearing plate, and a buffering assembly is installed on the bearing plate. When an earthquake occurs, the cross beam sinks under the action of a superstructure, the cross beam presses the side pressing rods on the two sides of the three-head hydraulic cylinder at the same time, liquid in the three-head hydraulic cylinder converges towards the center position of the three-head hydraulic cylinder and pushes the longitudinal rod to move upwards, the longitudinal rod upwards jacks the pressure bearing seat and the longitudinal rod, and sinking of the cross beam is restrained. In the process that the cross beam is pressed to sink, the cross beam drives the pressure-bearing seat to synchronously move downwards, under the cooperation of the top slopes of the double-face inclined blocks and the slope damping pads, the slope damping pads on the two sides of the pressure-bearing seat are extruded by the double-face inclined blocks, at the moment, damping of the slope damping pads is increased, vibration of the cross beam is relieved, and damage caused by vibration of the cross beam to nodes is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel structure frames, and in particular relates to an assembled steel structure frame and an application thereof. Background Art

[0002] Prefabricated steel structure frame is a building structure that is assembled on site from factory-prefabricated steel components (such as beams, columns, supports, etc.). This structural form can significantly improve construction efficiency, reduce on-site work and environmental pollution.

[0003] The steel columns and beams in the current steel structure frame are directly connected by bolts. When an earthquake occurs, the connection node between the beam and the steel column is easily affected by the earthquake and causes the following situation.

[0004] First, when an earthquake occurs, the shear force transmitted by the beam acts on the connection nodes of the steel columns, causing the node bolts to twist off.

[0005] Second, when an earthquake occurs, the superstructure sinks, which increases the pressure of the superstructure on the beams, easily causing the bolts at the node locations to break under compression; at the same time, when an earthquake occurs, the building vibrates, and this vibration will be transmitted to the beams, thereby aggravating the stress on the nodes. Summary of the invention

[0006] The purpose of the present invention is to provide a prefabricated steel structure frame and its application to solve the technical problems in the prior art in view of the shortcomings of the prior art.

[0007] The purpose of the present invention can be achieved through the following technical solutions: an assembled steel structure frame, which includes steel columns and cross beams, the cross beams are connected to the steel columns through connecting plates, and a supporting assembly is installed on the steel columns, the supporting assembly includes a lower casing, a lower connecting rod and a pressure plate, a lower casing is installed on the steel column, the lower casing is connected to the pressure plate through a lower connecting rod, a buffer assembly is installed on the pressure plate, and the connecting plate connects the cross beam and the buffer assembly; the buffer assembly includes a pressure seat, the pressure seat is installed in the pressure plate, the cross beam and the pressure seat are connected by bolts, a three-head hydraulic cylinder is installed inside the pressure plate, oblique pressure chambers are installed on both sides of the three-head hydraulic cylinder, a side pressure rod is slidably installed in the oblique pressure chamber, the side pressure rod contacts with the bottom of the pressure seat through a pressure roller, a longitudinal rod is slidably installed at the longitudinal output end of the three-head hydraulic cylinder, and a gap is reserved between the longitudinal rod and the pressure seat.

[0008] Preferably, inclined damping pads are fixedly installed on both sides of the pressure-bearing seat, double-sided inclined blocks are slidably installed on the side walls of the pressure plate, the top inclined surfaces of the double-sided inclined blocks are in contact with the inclined surfaces of the inclined damping pads, and a transverse rod is slidably installed on the transverse output end of the three-head hydraulic cylinder, a single-sided inclined block is installed on the transverse rod, and the single-sided inclined block is in contact with the bottom inclined surfaces of the double-sided inclined block.

[0009] Preferably, a guide groove is provided on the side wall of the pressure plate, a guide block is installed on the double-sided inclined block, and the guide block is slidably installed in the guide groove.

[0010] Preferably, the pressure-bearing seat is connected to the pressure-bearing plate via a disc spring.

[0011] Preferably, a pulling assembly is installed on the steel column, and the connecting plate connects the crossbeam and the pulling assembly.

[0012] Preferably, the pulling assembly includes an upper sleeve, the upper sleeve is connected to the steel column, the upper sleeve is connected to the pull plate through an upper connecting rod, and the pull plate is connected to the cross beam and the pull plate through a column bolt.

[0013] Preferably, folding baffles are installed on both sides of the pressure plate, and the crossbeam presses the folding baffles to fold.

[0014] Preferably, the present invention provides the use of the above-mentioned prefabricated steel structure frame in residential buildings, for example, using the prefabricated steel structure frame in multi-story residential buildings.

[0015] Beneficial effects of the present invention: (1) When an earthquake occurs, the crossbeam generates shear force on the connection node. The crossbeam applies pressure to the side pressure rod on one side of the three-head hydraulic cylinder through the pressure seat. At this time, the side pressure rod pushes the liquid inside the three-head hydraulic cylinder in the corresponding direction. As the liquid is compressed, the liquid pushes the corresponding transverse rod and the single-sided inclined block to move. With the cooperation of the single-sided inclined block and the bottom inclined surface of the double-sided inclined block, the single-sided inclined block pushes the double-sided inclined block upward. With the cooperation of the inclined damping pad and the top inclined surface of the double-sided inclined block, the double-sided inclined block is inserted into the gap between the inclined damping pad and the inner wall of the pressure plate and compresses the inclined damping pad, thereby suppressing the torsion shear of the crossbeam in this direction and reducing the crossbeam from transmitting the shear force to the node position, thereby effectively protecting the connection node between the steel column and the crossbeam.

[0016] (2) When an earthquake occurs, the beam sinks under the action of the superstructure. The beam presses the side pressure rods on both sides of the three-head hydraulic cylinder at the same time, so that the liquid inside the three-head hydraulic cylinder converges to the center of the three-head hydraulic cylinder and pushes the longitudinal rod upward, so that the longitudinal rod pushes the pressure seat and the longitudinal rod upward to inhibit the sinking of the beam. In the process of the beam sinking under pressure, the beam drives the pressure seat to move downward synchronously. With the cooperation of the top inclined surface of the double-sided inclined block and the inclined damping pad, the inclined damping pads on both sides of the pressure seat are squeezed by the double-sided inclined block. At this time, the damping of the inclined damping pad increases, thereby slowing down the vibration of the beam and reducing the damage caused by the vibration of the beam to the node. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a front view of the overall structure of the present invention.

[0019] Figure 2It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the connection structure of the supporting component, the pulling component and the beam.

[0021] Figure 4 It is a schematic diagram of the overall structure of the pulling component.

[0022] Figure 5 This is a schematic diagram of the connection structure between the buffer component and the crossbeam.

[0023] Figure 6 Schematic diagram of the internal structure of the pressure plate.

[0024] Figure 7 It is a schematic diagram of the internal structure of the three-head hydraulic cylinder.

[0025] Figure 8 This is the diagram of the beam under shear condition.

[0026] Fig. 9 This is the diagram of the beam under compression.

[0027] In the figure, it is marked as follows: 1. Steel column; 2. Crossbeam; 3. Supporting assembly; 301. Lower casing; 302. Lower connecting rod; 303. Pressure plate; 4. Pulling assembly; 401. Upper casing; 402. Upper connecting rod; 403. Pull plate; 404. Column bolt; 5. Connecting plate; 6. Buffer assembly; 601. Folding baffle; 602. Pressure seat; 603. Inclined damping pad; 604. Double-sided inclined block; 605. Guide groove; 606. Guide block; 607. Three-head hydraulic cylinder; 608. Transverse rod; 609. Oblique pressure chamber; 610. Single-sided inclined block; 611. Side pressure rod; 612. Longitudinal rod; 613. Pressure roller; 7. Disc spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 7A prefabricated steel structure frame includes a steel column 1 and a crossbeam 2, the crossbeam 2 is connected to the steel column 1 through a connecting plate 5, a supporting assembly 3 is installed on the steel column 1, and the supporting assembly 3 includes a lower sleeve 301, a lower connecting rod 302 and a pressure plate 303, a lower sleeve 301 is installed on the steel column 1, and the lower sleeve 301 is connected to the pressure plate 303 through the lower connecting rod 302, and a buffer assembly 6 is installed on the pressure plate 303, and the connecting plate 5 connects the crossbeam 2 and the buffer assembly 6; the buffer assembly 6 includes a pressure seat 60 2. The pressure seat 602 is installed in the pressure plate 303. The crossbeam 2 and the pressure seat 602 are connected by bolts. A three-head hydraulic cylinder 607 is installed inside the pressure plate 303. Oblique pressure chambers 609 are installed on both sides of the three-head hydraulic cylinder 607. A side pressure rod 611 is slidably installed in the oblique pressure chamber 609. The side pressure rod 611 contacts the bottom of the pressure seat 602 through a pressure roller 613. A longitudinal rod 612 is slidably installed at the longitudinal output end of the three-head hydraulic cylinder 607. A gap is reserved between the longitudinal rod 612 and the pressure seat 602.

[0030] Specifically, the inclined damping pads 603 are fixedly installed on both sides of the pressure-bearing seat 602, and the double-sided inclined blocks 604 are slidably installed on the side walls of the pressure plate 303. The top inclined surface of the double-sided inclined block 604 contacts the inclined surface of the inclined damping pad 603. The transverse output end of the three-head hydraulic cylinder 607 is slidably installed with a transverse rod 608, and a single-sided inclined block 610 is installed on the transverse rod 608. The single-sided inclined block 610 contacts the bottom inclined surface of the double-sided inclined block 604.

[0031] Specifically, the pressure bearing seat 602 is connected to the pressure bearing plate 303 via a disc spring 7 .

[0032] It should be noted that, during installation, the steel column 1 is first installed on the corresponding foundation, and then the lower casing 301 is installed on the steel column 1. The cross beam 2 is hoisted by a crane, and the cross beam 2 is connected to the steel column 1 through the connecting plate 5. The upper casing 401 is fixedly installed on the steel column 1, and then the pull plate 403, the cross beam 2 and the connecting plate 5 are connected through the column bolt 404, and finally the connecting plate 5, the cross beam 2 and the pressure bearing seat 602 are connected by bolts.

[0033] When an earthquake occurs, beam 2 generates shear force on the connection node, see Figure 8As shown, the beam 2 applies pressure to the side pressure rod 611 on one side of the three-head hydraulic cylinder 607 through the pressure seat 602. At this time, the side pressure rod 611 pushes the liquid inside the three-head hydraulic cylinder 607 to the corresponding direction. As the liquid is compressed, the liquid pushes the corresponding transverse rod 608 and the single-sided inclined block 610 to move. With the cooperation of the single-sided inclined block 610 and the bottom inclined surface of the double-sided inclined block 604, the single-sided inclined block 610 pushes the double-sided inclined block 604 to move upward. With the cooperation of the inclined damping pad 603 and the top inclined surface of the double-sided inclined block 604, the double-sided inclined block 604 is inserted into the gap between the inclined damping pad 603 and the inner wall of the pressure plate 303 and compresses the inclined damping pad 603, thereby suppressing the torsion shear of the beam 2 in this direction and reducing the shear force transmitted to the node position by the beam 2, thereby effectively protecting the connection node between the steel column 1 and the beam 2.

[0034] When an earthquake occurs, the superstructure sinks, which increases the pressure of the superstructure on the cross beam 2, and the building transmits vibration to the cross beam 2. Based on this, the present invention solves the problem through the following solution.

[0035] First, the present invention forms a firm triangular structure on both sides of the beam 2 through the supporting assembly 3 and the pulling assembly 4, thereby improving the stability and earthquake resistance of the beam 2; second, the disc spring 7 between the pressure bearing seat 602 and the pressure bearing plate 303 provides a buffer for the beam 2 to avoid the rigid fracture of the node bolts. Fig. 9 , during the sinking process of the cross beam 2, the cross beam 2 simultaneously presses the side pressure rods 611 on both sides of the three-head hydraulic cylinder 607, so that the liquid inside the three-head hydraulic cylinder 607 converges to the center of the three-head hydraulic cylinder 607 and pushes the longitudinal rod 612 upward, so that the longitudinal rod 612 pushes the pressure seat 602 and the longitudinal rod 612 upward to inhibit the sinking of the cross beam 2. Fourth, during the sinking process of the cross beam 2 under pressure, the cross beam 2 drives the pressure seat 602 to move downward synchronously, and under the cooperation of the top inclined surface of the double-sided inclined block 604 and the inclined surface damping pad 603, see Fig. 9 The inclined damping pads 603 on both sides of the pressure-bearing seat 602 are squeezed by the double-sided inclined blocks 604. At this time, the damping of the inclined damping pads 603 is increased, thereby slowing down the vibration of the beam 2 and reducing the damage to the node caused by the vibration of the beam 2.

[0036] See also Figure 6 The side wall of the pressure plate 303 is provided with a guide groove 605 , and a guide block 606 is installed on the double-sided inclined block 604 , and the guide block 606 is slidably installed in the guide groove 605 .

[0037] It should be noted that the double-sided inclined block 604 is set with upper and lower double inclined surfaces, and the top inclined surface of the double-sided inclined block 604 is in contact with the inclined damping pad 603, so that when the beam 2 moves downward under pressure, the inclined damping pads 603 on both sides of the pressure seat 602 can be squeezed by the double-sided inclined block 604, thereby increasing the damping of the inclined damping pad 603 and reducing the vibration of the beam 2.

[0038] See also Figure 3-Figure 4 A pulling assembly 4 is installed on the steel column 1 , and the connecting plate 5 connects the cross beam 2 and the pulling assembly 4 .

[0039] Specifically, the pulling assembly 4 includes an upper sleeve 401 , which is connected to the steel column 1 , and the upper sleeve 401 is connected to a pull plate 403 through an upper connecting rod 402 , and the pull plate 403 is connected to the cross beam 2 and the pull plate 403 through a column bolt 404 .

[0040] It should be noted that when the cross beam 2 is pressed and moves downward, the pressure plate 303 can support the cross beam 2, and the pull plate 403 can pull the cross beam 2, further improving the stability of the connection node between the cross beam 2 and the steel column 1.

[0041] See also Figure 5 Folding baffles 601 are installed on both sides of the pressure plate 303, and the crossbeam 2 presses the folding baffles 601 to fold.

[0042] It should be noted that the main function of the folding baffle 601 is to isolate dust and prevent dust from falling into the pressure plate 303.

[0043] The present invention provides an application of an assembled steel structure frame in a residential building, for example, the assembled steel structure frame is used in a multi-story residential building.

[0044] The implementation principle of the present invention is: During installation, the present invention first installs the steel column 1 on the corresponding foundation, and then installs the lower casing 301 on the steel column 1. The cross beam 2 is hoisted by a crane, and the cross beam 2 is connected to the steel column 1 through the connecting plate 5. The upper casing 401 is fixedly installed on the steel column 1, and then the pull plate 403, the cross beam 2 and the connecting plate 5 are connected through the column bolt 404, and finally the connecting plate 5, the cross beam 2 and the pressure bearing seat 602 are connected by bolts.

[0045] When an earthquake occurs, beam 2 generates shear force on the connection node, see Figure 8 As shown, the beam 2 applies pressure to the side pressure rod 611 on one side of the three-head hydraulic cylinder 607 through the pressure seat 602. At this time, the side pressure rod 611 pushes the liquid inside the three-head hydraulic cylinder 607 to the corresponding direction. As the liquid is compressed, the liquid pushes the corresponding transverse rod 608 and the single-sided inclined block 610 to move. With the cooperation of the single-sided inclined block 610 and the bottom inclined surface of the double-sided inclined block 604, the single-sided inclined block 610 pushes the double-sided inclined block 604 to move upward. With the cooperation of the inclined damping pad 603 and the top inclined surface of the double-sided inclined block 604, the double-sided inclined block 604 is inserted into the gap between the inclined damping pad 603 and the inner wall of the pressure plate 303 and compresses the inclined damping pad 603, thereby suppressing the torsion shear of the beam 2 in this direction and reducing the shear force transmitted to the node position by the beam 2, thereby effectively protecting the connection node between the steel column 1 and the beam 2.

[0046] When an earthquake occurs, the superstructure sinks, increasing the pressure of the superstructure on the beam 2, and the building transmits vibration to the beam 2. Based on this, the present invention first forms a firm triangular structure on both sides of the beam 2 through the supporting assembly 3 and the pulling assembly 4 to improve the stability and earthquake resistance of the beam 2.

[0047] For details, see Fig. 9 When the beam 2 is sinking, the beam 2 simultaneously presses the side pressure rods 611 on both sides of the three-head hydraulic cylinder 607, so that the liquid inside the three-head hydraulic cylinder 607 converges to the center of the three-head hydraulic cylinder 607 and pushes the longitudinal rod 612 upward, so that the longitudinal rod 612 pushes the pressure seat 602 and the longitudinal rod 612 upward to inhibit the sinking of the beam 2. When the beam 2 is under pressure and sinks, the beam 2 drives the pressure seat 602 to move downward synchronously. With the cooperation of the top inclined surface of the double-sided inclined block 604 and the inclined damping pad 603, see Fig. 9 The inclined damping pads 603 on both sides of the pressure-bearing seat 602 are squeezed by the double-sided inclined blocks 604. At this time, the damping of the inclined damping pads 603 is increased, thereby slowing down the vibration of the beam 2 and reducing the damage to the node caused by the vibration of the beam 2.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An assembled steel structure frame, characterized in that: The invention comprises a steel column (1) and a crossbeam (2), wherein the crossbeam (2) is connected to the steel column (1) via a connecting plate (5), a supporting assembly (3) is installed on the steel column (1), and the supporting assembly (3) comprises a lower sleeve (301), a lower connecting rod (302) and a pressure plate (303), the lower sleeve (301) is installed on the steel column (1), the lower sleeve (301) is connected to the pressure plate (303) via the lower connecting rod (302), a buffer assembly (6) is installed on the pressure plate (303), and the connecting plate (5) connects the crossbeam (2) and the buffer assembly (6); The buffer assembly (6) comprises a pressure-bearing seat (602), the pressure-bearing seat (602) being installed in the pressure-bearing plate (303), the crossbeam (2) and the pressure-bearing seat (602) being connected by bolts, a three-head hydraulic cylinder (607) being installed inside the pressure-bearing plate (303), oblique pressure chambers (609) being installed on both sides of the three-head hydraulic cylinder (607), a side pressure rod (611) being slidably installed in the oblique pressure chamber (609), the side pressure rod (611) being in contact with the bottom of the pressure-bearing seat (602) via a pressure roller (613), a longitudinal rod (612) being slidably installed at the longitudinal output end of the three-head hydraulic cylinder (607), and a gap being reserved between the longitudinal rod (612) and the pressure-bearing seat (602).

2. The assembled steel structure frame according to claim 1, characterized in that: Inclined damping pads (603) are fixedly installed on both sides of the pressure-bearing seat (602); a double-sided inclined block (604) is slidably installed on the side wall of the pressure-bearing plate (303); the top inclined surface of the double-sided inclined block (604) contacts the inclined surface of the inclined damping pad (603); a transverse rod (608) is slidably installed on the transverse output end of the three-head hydraulic cylinder (607); a single-sided inclined block (610) is installed on the transverse rod (608); and the single-sided inclined block (610) contacts the bottom inclined surface of the double-sided inclined block (604).

3. The assembled steel structure frame according to claim 2, characterized in that: A guide groove (605) is provided on the side wall of the pressure bearing plate (303), a guide block (606) is installed on the double-sided inclined block (604), and the guide block (606) is slidably installed in the guide groove (605).

4. The assembled steel structure frame according to claim 1, characterized in that: The pressure bearing seat (602) is connected to the pressure bearing plate (303) via a disc spring (7).

5. The assembled steel structure frame according to claim 1, characterized in that: A pulling assembly (4) is installed on the steel column (1), and the connecting plate (5) connects the crossbeam (2) and the pulling assembly (4).

6. The assembled steel structure frame according to claim 5, characterized in that: The pulling assembly (4) comprises an upper sleeve (401), the upper sleeve (401) being connected to the steel column (1), the upper sleeve (401) being connected to a pull plate (403) via an upper connecting rod (402), and the pull plate (403) being connected to the crossbeam (2) and the pull plate (403) via a column bolt (404).

7. The assembled steel structure frame according to claim 1, characterized in that: Folding baffles (601) are installed on both sides of the pressure-bearing plate (303), and the crossbeam (2) presses the folding baffles (601) to fold.

8. Application of the assembled steel structure frame according to any one of claims 1 to 2 in residential buildings, characterized in that: The assembled steel structure frame is used for multi-story residential buildings.

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