Fabricated energy-dissipation self-resetting beam column splicing structure

Abstract

The utility model discloses an assembly type energy dissipation self-resetting beam column splicing structure which comprises a concrete upper column, a concrete lower column, a concrete beam and a steel connecting device, the steel connecting device is arranged between the concrete upper column and the concrete lower column, and two pieces of I-shaped steel arranged in parallel are pre-buried in the concrete beam. The steel connecting device comprises a steel sleeve and an energy dissipation device, the steel sleeve comprises a first steel section, a first empty groove is formed in the first steel section, a steel connecting piece is arranged on the side, close to the concrete beam, of the first steel section, the steel connecting piece is fixedly connected with the I-shaped steel, and second steel sections are arranged at the top and the bottom of the first steel section. The two second steel sections are fixed in the upper concrete column and the lower concrete column correspondingly, and the energy consumption device is located in the first empty groove. The vertical bearing capacity and the horizontal shearing force resistance of the structure are enhanced, meanwhile, displacement of the upper concrete column, the lower concrete column, the end of the concrete beam and an internal energy consumption device is restrained, and the overall stability of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled building structures, in particular to an assembled energy-consuming self-resetting beam-column splicing structure. Background Art

[0002] With the increase in the amount of construction projects and the improvement of quality requirements, the bearing performance, seismic performance and service life of beam-column splicing structures are increasingly valued in the design and construction of frame structures. The assembled energy-absorbing beam-column splicing structure includes a concrete upper column, a concrete lower column, a concrete beam, a steel connection device, a connecting steel pipe, a reinforcement block, etc. Through modular design and assembly construction, steel, high-damping rubber, connecting steel pipes and reinforcement blocks are assembled into an energy-absorbing device of a beam-column splicing structure, which can meet the requirements of building bearing, shear resistance and seismic resistance, and the components are easy to replace and have a long service life.

[0003] At present, most beam-column structures in my country use cast-in-place nodes, but this structure has certain defects. It ensures the vertical bearing capacity, but cannot meet the seismic requirements of the structure, and its service life is relatively short. In terms of structural force and seismic performance, the rigid connection between beams and columns in cast-in-place nodes is prone to brittle failure and torsional failure under earthquakes, causing the beam to sink and separate from the column, resulting in cracks and posing a safety hazard. In terms of construction, cast-in-place nodes are time-consuming and labor-intensive, and are prone to problems such as poor quality of cast-in-place concrete and waste of construction resources, which does not meet the requirements of my country's construction industrialization. Utility Model Content

[0004] The purpose of the utility model is to provide an assembled energy-absorbing self-resetting beam-column splicing structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides an assembled energy-absorbing self-resetting beam-column splicing structure, comprising: a concrete upper column, a concrete lower column, a concrete beam and a steel connecting device, characterized in that: the steel connecting device is arranged between the concrete upper column and the concrete lower column, the concrete beam is arranged on one side of the steel connecting device, and two parallel I-beams are pre-embedded in the concrete beam. The steel connecting device comprises a steel sleeve and an energy-absorbing device. The steel sleeve comprises a first steel section, a first empty groove is opened inside the first steel section, a steel connecting plate is arranged on one side of the first steel section close to the concrete beam, the steel connecting plate is fixedly connected to the I-beam, second steel sections are arranged on the top and bottom of the first steel section, the two second steel sections are respectively fixed in the concrete upper column and the concrete lower column, and the energy-absorbing device is located in the first empty groove.

[0006] In a preferred embodiment, the energy dissipation device includes a steel connecting layer and a high-damping rubber layer, the high-damping rubber layer is located between two identical steel connecting layers, the steel connecting layer includes a steel outer frame, the steel outer frame is a rectangular frame, and structural blocks are arranged at the four corners inside the steel outer frame. Steel connecting pieces are respectively connected between two adjacent structural blocks, and the outsides of two groups of mutually perpendicular steel connecting pieces are respectively provided with a first high-damping rubber block and a second high-damping rubber block.

[0007] In a preferred embodiment, the structural block includes a steel block, a first high damping rubber pad and a second high damping rubber pad. The two first high damping rubber pads and the two second high damping rubber pads are respectively arranged on the left and right sides and the upper and lower sides of the steel block, and are spliced ​​with the steel block by mortise and tenon joints. A first reserved hole is arranged on the steel block.

[0008] In a preferred embodiment, it also includes a connecting steel pipe, and a second reserved hole corresponding to the first reserved hole is arranged on the high damping rubber layer. The connecting steel pipe vertically passes through the first reserved hole and the second reserved hole, and the two ends are respectively located in the concrete upper column and the concrete lower column.

[0009] In a preferred embodiment, it also includes a reinforcement block, on which a plurality of third reserved holes are arranged at intervals, on the I-beam a plurality of fourth reserved holes are arranged, and on the steel connecting plate a plurality of fifth reserved holes are arranged, and the third reserved holes, the fourth reserved holes and the fifth reserved holes are all the same in shape and size, and their positions correspond one to one.

[0010] In a preferred embodiment, the steel connecting piece is arranged at the bottom of the I-beam, the reinforcing block is arranged at the bottom of the steel connecting piece, and the reinforcing block, the steel connecting piece and the I-beam are anchored and connected by high-strength bolts.

[0011] In a preferred embodiment, connecting protrusions are respectively provided on the front and rear sides and the left and right sides of the steel block, and the two oppositely arranged connecting protrusions are respectively connected to the steel outer frame and the steel connecting piece.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: a steel connecting device is provided between the concrete upper column and the concrete lower column of the utility model, the steel connecting device includes a steel sleeve and an energy dissipation device, the two ends of the steel sleeve are respectively fixed inside the concrete upper column and the concrete lower column, and the energy dissipation device is arranged inside the steel sleeve. The design of the steel sleeve enhances the vertical bearing capacity and the performance of resisting horizontal shear force of the structure, and at the same time constrains the displacement of the concrete upper column, the concrete lower column, the end of the concrete beam and the internal energy dissipation device, thereby improving the overall stability of the structure.

[0013] The utility model is also provided with a vertical connecting steel pipe. When the structure is subjected to horizontal disturbance loads, the steel connection device and the connecting steel pipe can strengthen the performance of the component to resist shear force, improve the phenomenon that the traditional cast-in-place component has weak shear resistance, and greatly improve the safety performance of the structure. The I-beam of the concrete beam, the steel connecting piece of the steel sleeve, and the reinforcing block are anchored and connected to the corresponding holes through high-strength bolts. The seismic resistance and shear resistance of the beam-column structure can be improved by increasing the strength of the high-strength bolts and increasing the number and thickness of the reinforcing blocks. When the structure is damaged, only the reinforcing blocks and high-strength bolts need to be replaced, which protects the steel sleeve and the concrete beam and is easy to replace.

[0014] The energy dissipation device of the utility model is composed of two materials, steel and high damping rubber, which are spliced ​​with mortise and tenon joints for many times, and the combination of the two materials works. When the structure is subjected to earthquake loads, the steel and high damping rubber inside the energy dissipation device have different stiffnesses, and relative displacement will occur between the steel and the high damping rubber, so that the energy dissipation device and the steel sleeve are squeezed to a certain extent, thereby consuming part of the squeezing force and avoiding the structure from being squeezed and deformed, thereby increasing the consumption of earthquake energy. At the same time, relative displacement will also occur inside the steel connection device, gradually transmitting and multiple weakening the force from the upper layer. When the vertical load disappears, the structure will reset itself, thereby achieving energy dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the steel sleeve of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the energy dissipation device of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the steel connecting layer component of the present invention;

[0019] Figure 5 It is a schematic diagram of assembling the building blocks of the present invention;

[0020] Figure 6 It is a schematic structural diagram of the reinforcing block of the present invention.

[0021] Description of reference numerals:

[0022] 1. Concrete upper column; 2. Concrete lower column; 3. Concrete beam; 301. I-beam; 302. Fourth hole; 4. Steel connection device; 401. Steel sleeve; 4011. Steel connection piece; 4012. Second empty slot; 4013. First empty slot; 4014. Fifth reserved hole; 4015. Second steel section; 4016. First steel section; 402. Energy dissipation device; 403. Steel connection layer; 4031. Construction block ; 4032, steel connecting piece; 4033, first high damping rubber block; 4034, second high damping rubber block; 4035, steel outer frame; 4036, steel block; 4037, first high damping rubber pad; 4038, second high damping rubber pad; 4039, first reserved hole; 404, high damping rubber layer; 4041, second reserved hole; 5, connecting steel pipe; 6, reinforcement block; 601, third reserved hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model are described clearly and completely below. The embodiments of the utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figures 1 to 6 As shown, the assembled energy-absorbing self-resetting beam-column splicing structure of the preferred embodiment of the utility model comprises: a concrete upper column 1, a concrete lower column 2, a concrete beam 3, a steel connection device 4, a connecting steel pipe 5 and a reinforcing block 6. The steel connection device 4 is arranged between the concrete upper column 1 and the concrete lower column 2, and the concrete beam 3 is arranged on one side of the steel connection device 4. Two parallel I-beams 301 are embedded in the concrete beam 3. The steel connection device 4 comprises a steel sleeve 401 and an energy-absorbing device 402. The steel sleeve 401 comprises a first steel section 4016. A first empty slot 4013 is provided inside the first steel section 4016. The energy-absorbing device 402 is located in the first empty slot 4013. A steel connection piece 4011 is horizontally arranged on one side of the first steel section 4016 close to the concrete beam 3. The steel connection piece 4011 is fixedly connected to the I-beam 301. The second steel section 4015 is arranged at the top and bottom of the first steel section 4016, and a second slot 4012 is opened in the second steel section 4015. The second slot 4012 and the first slot 4013 are both rectangular, and the width of the first slot 4013 is smaller than the width of the second slot 4012. The two second steel sections 4015 are respectively fixed in the concrete upper column 1 and the concrete lower column 2.

[0026] Furthermore, the energy dissipation device 402 includes a steel connection layer 403 and a high damping rubber layer 404, and the high damping rubber layer 404 is located between two identical upper and lower steel connection layers 403. The outer end surfaces of the steel connection layer 403 and the high damping rubber layer 404 are flush. The steel connection layer 403 includes a steel outer frame 4035, which is a rectangular frame, and the four corners of the steel outer frame 4035 are provided with structural blocks 4031, and steel connectors 4032 are respectively connected between two adjacent structural blocks 4031, and the first high damping rubber block 4033 and the second high damping rubber block 4034 are respectively sleeved on the outside of two sets of mutually perpendicular steel connectors 4032. The first high damping rubber block 4033 and the second high damping rubber block 4034 are both hollow rectangular parallelepiped structures, and the upper surfaces and lower surfaces of the steel outer frame 4035, the structural block 4031, the first high damping rubber block 4033 and the second high damping rubber block 4034 are flush respectively.

[0027] Furthermore, the structural block 4031 includes a steel block 4036, a first high damping rubber pad 4037 and a second high damping rubber pad 4038. The two first high damping rubber pads 4037 and the two second high damping rubber pads 4038 are respectively arranged on the left and right sides and the upper and lower sides of the steel block 4036, and are mortise and tenon spliced ​​with the steel block 4036. The steel block 4036, the first high damping rubber pad 4037 and the second high damping rubber pad 4038 form a rectangular parallelepiped structure, two sets of oppositely arranged connecting protrusions are arranged on the rectangular parallelepiped structure, and a first reserved hole 4039 is arranged at the center of the steel block 4036.

[0028] Furthermore, a second reserved hole 4041 corresponding to the first reserved hole 4039 is provided on the high damping rubber layer 404, and the connecting steel pipe 5 vertically passes through the first reserved hole 4039 and the second reserved hole 4041, and the two ends are respectively located in the concrete upper column 1 and the concrete lower column 2.

[0029] Further, a plurality of third reserved holes 601 are arranged at intervals on the reinforcing block 6, a plurality of fourth reserved holes 302 are arranged on the I-beam 301, and a plurality of fifth reserved holes 4014 are arranged on the steel connecting piece 4011. The third reserved holes 601, the fourth reserved holes 302 and the fifth reserved holes 4014 are all of the same shape and size, and the positions correspond one to one. The steel connecting piece 4011 is arranged at the bottom of the I-beam 301, the reinforcing block 6 is arranged at the bottom of the steel connecting piece 4011, and the reinforcing block 6, the steel connecting piece 4011 and the I-beam 301 are anchored and connected by high-strength bolts.

[0030] Further, specifically, the front and rear sides and the left and right sides of the steel block 4036 are respectively provided with connecting protrusions, and the two oppositely arranged connecting protrusions are respectively connected to the steel outer frame 4035 and the steel connecting piece 4032. The two connecting protrusions on the left and right sides respectively pass through the first high damping rubber pads 4037 on the left and right sides, and extend to the outside of the first high damping rubber pads 4037. The two first high damping rubber pads 4037 and the two second high damping rubber pads 4038 are spliced ​​with the steel block 4036 by mortise and tenon joints, and the steel block 4036 and the first high damping rubber pads 4037 and the second high damping rubber pads 4038 form a rectangular parallelepiped structure, and two sets of opposite connecting protrusions are arranged on the rectangular parallelepiped structure, and the first reserved holes 4039 are correspondingly arranged at the center positions of the top and bottom of the steel block 4036. The two ends of the steel connecting piece 4032 are respectively provided with cylindrical connecting parts, and the cylindrical connecting parts are plug-connected with the connecting protrusions.

[0031] Example 2

[0032] This embodiment provides a method for construction using the above-mentioned assembled energy-absorbing self-resetting beam-column splicing structure, comprising the following steps:

[0033] Step S1: manufacturing a steel sleeve 401, a steel connector 4032, a first high damping rubber block 4033, a second high damping rubber block 4034, a steel outer frame 4035, a steel block 4036, a first high damping rubber pad 4037, and a second high damping rubber pad 4038, and completing the splicing of the relevant components of the steel connection device 4;

[0034] Step S2: making a concrete upper column 1, a concrete lower column 2, a concrete beam 3, a connecting steel pipe 5, and a reinforcing block 6;

[0035] Step S3: Complete the splicing between the concrete upper column 1, the concrete lower column 2, the concrete beam 3, the connecting steel pipe 5, the reinforcing block 6 and the steel connecting device 4. The connecting steel pipe 5 passes through the energy dissipation device 402, and the two ends are respectively located in the concrete upper column 1 and the concrete lower column 2. The reinforcing block 6 is anchored and connected with the I-beam 301 and the steel connecting plate 4011 of the concrete beam 3 by high-strength bolts.

[0036] Specifically, a steel connection device 4 and a connecting steel pipe 5 are provided between the concrete upper column 1 and the concrete lower column 2. The steel connection device 4 includes a steel sleeve 401 and an energy dissipation device 402. The two ends of the steel sleeve 401 are respectively fixed to the inside of the concrete upper column 1 and the concrete lower column 2. The design of the steel sleeve 401 enhances the vertical bearing capacity of the structure and the performance of resisting horizontal shear force, and at the same time constrains the displacement of the ends of the concrete upper column 1, the concrete lower column 2, the concrete beam 3 and the internal energy dissipation device, thereby improving the overall stability of the structure. The energy dissipation device 402 is composed of two materials, steel and high damping rubber, which are spliced ​​with mortise and tenon joints for many times, and the combination of the two materials plays a role. When the structure is subjected to earthquake loads, the steel and high damping rubber in the energy dissipation device 402 have different stiffness, and relative displacement will occur between the steel and the high damping rubber, so that the energy dissipation device 402 and the steel sleeve 401 are squeezed to a certain extent, thereby consuming part of the squeezing force, avoiding the structure from being squeezed and deformed, thereby improving the consumption of earthquake energy. At the same time, relative displacement will also occur inside the steel connection device 4, which will gradually transmit and multiple weaken the force from the upper layer. When the vertical load disappears, the structure will self-reset, thereby achieving energy dissipation.

[0037] When the structure is subjected to horizontal disturbance load, the steel connection device 4 and the connecting steel pipe 5 can strengthen the performance of the component to resist shear force, improve the phenomenon that the traditional cast-in-place component has weak shear resistance, and greatly improve the safety performance of the structure. The I-beam 301 of the concrete beam 3, the steel connection piece 4011 of the steel sleeve 401, and the reinforcing block 6 are anchored and connected to the corresponding holes through high-strength bolts, and the seismic resistance and shear resistance of the beam-column structure can be improved by increasing the strength of the high-strength bolts and increasing the number and thickness of the reinforcing blocks 6. When the structure is damaged, only the reinforcing blocks 6 and high-strength bolts need to be replaced, which protects the steel sleeve 401 and the concrete beam 3 and is easy to replace.

[0038] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled energy-absorbing self-resetting beam-column splicing structure, comprising: A concrete upper column (1), a concrete lower column (2), a concrete beam (3) and a steel connection device (4), characterized in that: the steel connection device (4) is arranged between the concrete upper column (1) and the concrete lower column (2), the concrete beam (3) is arranged on one side of the steel connection device (4), two parallel I-beams (301) are embedded in the concrete beam (3), the steel connection device (4) comprises a steel sleeve (401) and an energy dissipation device (402), the steel sleeve (401) comprises a first steel section (4016), the A first empty slot (4013) is provided inside the first steel section (4016); a steel connecting piece (4011) is provided on a side of the first steel section (4016) close to the concrete beam (3); the steel connecting piece (4011) is fixedly connected to the I-beam (301); second steel sections (4015) are provided on the top and bottom of the first steel section (4016); the two second steel sections (4015) are respectively fixed in the concrete upper column (1) and the concrete lower column (2); and the energy dissipation device (402) is located in the first empty slot (4013).

2. The assembled energy-absorbing self-resetting beam-column splicing structure according to claim 1 is characterized in that: The energy dissipation device (402) comprises a steel connection layer (403) and a high damping rubber layer (404), wherein the high damping rubber layer (404) is located between two identical steel connection layers (403), wherein the steel connection layer (403) comprises a steel outer frame (4035), wherein the steel outer frame (4035) is a rectangular frame, wherein four corners inside the steel outer frame (4035) are each provided with a structural block (4031), and steel connecting pieces (4032) are respectively connected between two adjacent structural blocks (4031), and the outsides of two groups of mutually perpendicular steel connecting pieces (4032) are respectively provided with a first high damping rubber block (4033) and a second high damping rubber block (4034).

3. The assembled energy-absorbing self-resetting beam-column splicing structure according to claim 2 is characterized in that: The structural block (4031) comprises a steel block (4036), a first high-damping rubber pad (4037) and a second high-damping rubber pad (4038); the two first high-damping rubber pads (4037) and the two second high-damping rubber pads (4038) are respectively arranged on the left and right sides and the upper and lower sides of the steel block (4036), and are spliced ​​with the steel block (4036) by mortise and tenon joints; and the steel block (4036) is provided with a first reserved hole (4039).

4. The assembled energy-absorbing self-resetting beam-column splicing structure according to claim 3 is characterized in that: It also includes a connecting steel pipe (5), wherein the high damping rubber layer (404) is provided with a second reserved hole (4041) corresponding to the first reserved hole (4039), and the connecting steel pipe (5) vertically passes through the first reserved hole (4039) and the second reserved hole (4041), and the two ends are respectively located in the concrete upper column (1) and the concrete lower column (2).

5. The assembled energy-absorbing self-resetting beam-column splicing structure according to claim 1 is characterized in that: The invention also comprises a reinforcing block (6), wherein a plurality of third reserved holes (601) are arranged at intervals on the reinforcing block (6), a plurality of fourth reserved holes (302) are arranged on the I-beam (301), and a plurality of fifth reserved holes (4014) are arranged on the steel connecting piece (4011), wherein the third reserved holes (601), the fourth reserved holes (302) and the fifth reserved holes (4014) are all of the same shape and size and have positions corresponding to each other.

6. The assembled energy-absorbing self-resetting beam-column splicing structure according to claim 5 is characterized in that: The steel connecting piece (4011) is arranged at the bottom of the I-beam (301), the reinforcing block (6) is arranged at the bottom of the steel connecting piece (4011), and the reinforcing block (6), the steel connecting piece (4011) and the I-beam (301) are anchored and connected by high-strength bolts.

7. The assembled energy-absorbing self-resetting beam-column splicing structure according to claim 3 is characterized in that: The front and rear sides and the left and right sides of the steel block (4036) are respectively provided with connecting protrusions, and the two oppositely arranged connecting protrusions are respectively connected to the steel outer frame (4035) and the steel connecting piece (4032).

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