Component with replaceable connecting joints

Abstract

The utility model relates to the technical field of civil engineering damping equipment, in particular to a component with a replaceable connecting node. An upper column hinge and a lower column hinge are arranged at the upper end and the lower end of the prefabricated column respectively, the upper column hinge or the lower column hinge is fixedly connected with the left beam hinge, a right beam hinge is arranged on the side portion of the prefabricated beam, the prefabricated column is connected with the prefabricated beam in a combined mode through insertion of the left beam hinge and the right beam hinge, and the prefabricated plate covers the prefabricated beam to form the beam-plate-column joint. A left beam hinge C-shaped baffle is arranged on the left beam hinge, a right beam hinge U-shaped baffle is arranged on the right beam hinge, and the arc-shaped section of the left beam hinge C-shaped baffle and the arc-shaped section of the right beam hinge U-shaped baffle are attached to each other. A column hinge and a beam hinge are designed, the bearing capacity of the beam hinge is lower than that of the column hinge, it can be guaranteed that the beam hinge yields earlier than that of the column hinge, the bearing capacity of the beam hinge and that of the column hinge are both smaller than that of a prefabricated part connected with the beam hinge and the column hinge, it is guaranteed that structural damage is generated at the expected position and sequence, and accurate damage controllability of the structure can be achieved; wide application and popularization are easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to civil engineering damping equipment technical field, especially a connecting node replaceable component. BACKGROUND

[0002] The infrastructure construction of our country has spread from the east coast to the west mountainous area, and the civil and commercial buildings are also breaking through to higher targets, but at the same time, a difficult problem is also faced - anti-seismic. Important structures need to be designed with higher requirements for anti-seismic to ensure the safety of the structures under the action of earthquakes, so as to protect the safety of people's lives and property. Similarly, for other countries with frequent earthquakes, structural anti-seismic is also a huge problem. Although the traditional assembled anti-seismic structure has sufficient anti-seismic and ductility performance, the structure mainly relies on the damage of materials to dissipate energy during the earthquake process, and the structure has large residual deformation after the earthquake, is difficult to repair, has poor economy, etc. It cannot meet the requirements of the current high-rise building assembled structure, and has poor durability, inconvenient replacement, etc. Therefore, taking the connection of the assembled structure as an opportunity, a type steel mixed connection structure with simple design, reasonable stress, convenient installation and repair, superior anti-seismic ability is designed, which effectively solves the local or overall deficiency of the traditional assembled structure, and achieves the structure repair function requirement taking the connection as the control point. The replaceable type steel mixed connection fully considers the deformation and energy dissipation performance in the structure, dissipates energy in the epicenter and concentrates the plastic deformation of the structure, and after the earthquake, the damaged energy dissipation component can be replaced to realize the toughness recovery of the structure function. A kind of assembled anti-buckling replaceable beam-plate-column node with excellent anti-seismic performance, modularization easy to split combination, simple structure, reasonable stress, easy to repair function after the earthquake has significance for the popularization and application of assembled structure.

[0003] The prior art discloses an assembled self-locking high-strength steel pipe column and composite beam node, application number 202111251329.1, which comprises a high-strength steel pipe column and an H-shaped beam, and a high-strength cross-shaped stiffening rib is arranged in the high-strength steel pipe column; a T-shaped piece and an energy dissipation T-shaped piece are fixedly connected to the high-strength steel pipe column; the flanges of the T-shaped piece and the energy dissipation T-shaped piece are fixedly connected with the high-strength cross-shaped stiffening rib arranged in the high-strength steel pipe column through high-strength bolts; the upper and lower flanges of the H-shaped beam are connected with the web of the T-shaped piece and the web of the energy dissipation T-shaped piece respectively, and the reinforced concrete floor and the upper flange of the H-shaped beam are connected through high-strength bolts to form a composite beam. Under the action of an earthquake, the inelastic deformation of the node is concentrated on the energy dissipation T-shaped piece, the beam, the column and other components remain elastic in a major earthquake, and the energy dissipation T-shaped piece plays the role of a fuse, so that only the damaged energy dissipation T-shaped piece needs to be replaced in the post-earthquake repair; the embedded high-strength steel cross-shaped stiffening rib replaces the role of the nut, has the performance of anti-loosening, and improves the pull-out resistance of the bolt. However, the above-mentioned disclosed technology still has the problems of easy deformation of the assembled frame structure during an earthquake, easy damage of the material, difficulty in post-earthquake repair, difficulty in component replacement, and poor energy dissipation capacity. The utility model provides an assembled anti-buckling replaceable beam-slab-column node assembly and a use method thereof to solve the above-mentioned problems. Utility model content

[0004] In view of the prior art, the utility model aims to provide an assembled anti-buckling replaceable beam-slab-column node and a construction step, so as to solve the problems of easy deformation of the assembled frame structure during an earthquake, easy damage of the material, difficulty in post-earthquake repair, difficulty in component replacement, and poor energy dissipation capacity in the prior art, and achieve the design purpose of easy replacement and easy repair of the structure after an earthquake.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A connecting node replaceable component comprises an upper column hinge, a lower column hinge, a prefabricated column, a left beam hinge, a right beam hinge, a prefabricated beam and a prefabricated slab, the upper and lower ends of the prefabricated column are respectively provided with the upper column hinge and the lower column hinge, the upper column hinge or the lower column hinge is fixedly connected with the left beam hinge, the side of the prefabricated beam is provided with the right beam hinge, the prefabricated column is combined and connected with the prefabricated beam through the left beam hinge and the right beam hinge, and the prefabricated beam is covered with the prefabricated slab to form a beam-slab-column node; a left beam hinge C-shaped baffle is arranged on the left beam hinge, a right beam hinge U-shaped baffle is arranged on the right beam hinge, and the arc segments of the left beam hinge C-shaped baffle and the right beam hinge U-shaped baffle are mutually attached.

[0007] A beam energy dissipation plate is connected between the left beam hinge and the right beam hinge, and the beam energy dissipation plate is located at the side, the upper part or the lower part of the C-shaped baffle and the right beam hinge U-shaped baffle.

[0008] The left beam hinge is divided into a left beam hinge piece, a left beam hinge C-shaped baffle, a left beam hinge horizontal stiffening rib plate, a left beam hinge flange plate limiting hole and a left beam hinge baffle limiting hole; the right beam hinge is divided into a right beam hinge piece, a right beam hinge U-shaped baffle, a right beam hinge flange plate limiting hole and a right beam hinge baffle limiting hole; the left beam hinge piece and the right beam hinge piece are inserted, the left beam hinge C-shaped baffle and the right beam hinge U-shaped baffle arc-shaped section are in contact, the left beam hinge baffle limiting hole is arranged on the left beam hinge C-shaped baffle, the right beam hinge baffle limiting hole is arranged on the right beam hinge U-shaped baffle, the left beam hinge baffle limiting hole is a circular hole, the right beam hinge baffle limiting hole is a strip-shaped hole, the left beam hinge is fixedly connected with the right beam hinge through the left beam hinge baffle limiting hole and the right beam hinge baffle limiting hole, and the left beam hinge and the right beam hinge are bonded with the buffer rubber inserts at the joint gap.

[0009] Two beam energy consumption plates are arranged between the left beam hinge and the right beam hinge and are located at the two side portions or upper and lower portions of the C-shaped baffle and the right beam hinge U-shaped baffle.

[0010] The upper column hinge is composed of an upper column hinge square steel pipe, an upper column hinge T-shaped side plate and an upper column hinge baffle, the upper column hinge square steel pipe is provided with the upper column hinge T-shaped side plate on the peripheral wall, and the end of the upper column hinge square steel pipe is provided with the upper column hinge baffle; the lower column hinge is composed of a lower column hinge square steel pipe, a lower column hinge T-shaped side plate and a lower column hinge baffle, the lower column hinge square steel pipe is provided with the lower column hinge T-shaped side plate on the peripheral wall, and the end of the lower column hinge square steel pipe is provided with the lower column hinge baffle, the upper column hinge baffle and the lower column hinge baffle are arranged in an inclined manner, and the upper column hinge and the lower column hinge are inserted into the upper column hinge baffle and the lower column hinge baffle to be in contact with each other. Further, the beam column and the column hinge are in contact at the joint, so that the column can be vertically erected without support during installation of the structure, and the beam can be directly inserted horizontally to be installed without support during installation of the beam.

[0011] The upper column hinge T-shaped side plate is provided with an upper column hinge limiting hole, the lower column hinge T-shaped side plate is provided with a lower column hinge limiting hole, the column energy consumption plate is inserted between the upper column hinge T-shaped side plate and the lower column hinge T-shaped side plate, and the upper column hinge and the lower column hinge are fixedly connected through the upper column hinge limiting hole and the lower column hinge limiting hole.

[0012] The column energy consumption plate is composed of a column energy consumption rubber and a column energy consumption steel plate, the beam energy consumption plate is composed of a beam energy consumption rubber and a beam energy consumption steel plate, and the column energy consumption steel plate and the beam energy consumption steel plate are made of Q235.

[0013] The prefabricated beam comprises an I-shaped steel, a C-shaped stirrup, a longitudinal steel bar, a fireproof foam block and a concrete layer, a pre-embedded hole is arranged on the prefabricated plate, a bolt is fixedly arranged on the I-shaped steel and connected with the pre-embedded hole of the prefabricated plate through the bolt, the fireproof foam block is bonded between the middle portion of the web plate of the I-shaped steel and the C-shaped stirrup, the longitudinal steel bar is bound in the gap between the C-shaped stirrups, the height of the fireproof foam block is flush with the inner side of the C-shaped stirrup, and the C-shaped stirrup is fixed between the fireproof foam block and the upper and lower edges of the I-shaped steel and poured with the concrete layer.

[0014] Further, the beam hinge and column hinge energy dissipation plate are respectively installed by bolts and pegs. Once the energy dissipation plate is damaged or destroyed, the energy dissipation can be replaced by continuing to disassemble the bolts and pegs. According to the needs of structural performance, the energy dissipation plate with different materials, different cross-sectional forms and different thicknesses can be directly used to improve or improve the structural performance. In particular, the existing technology beam and column installation are often designed to be installed at 90° or a specific angle. However, the installation is often affected by the ground pit or slope, which will affect the on-site installation. After the gradual assembly of multiple components, size deviation or subsequent docking failure may occur. In the existing technology, the hammering, cutting and re-design replacement of components are often used. Not only the local strength and integrity are damaged, but also time and effort are wasted. The structure of the case has an adjusting function, which can adjust the angle node by node, effectively overcoming the size adjustment problem in the existing technology. In addition, the right beam hinge baffle limiting hole is a strip-shaped hole. When a huge bearing impact is received, it can rotate from the limiting position along the strip-shaped hole and cooperate with the arc contact surface to release the impact force. Q235 soft steel with good ductility and rubber are used. While providing sufficient bearing capacity and energy dissipation capacity for the structure, it also provides superior ductility for the structure. The beam hinge and column hinge are inserted and cooperate with the energy dissipation plate to generate local friction for friction energy dissipation. Limiting bolts are arranged between the beam hinge and the column hinge connection to ensure that the connection does not deform too much under the action of an earthquake.

[0015] The structure is connected by mechanical connection, and if a component is damaged locally after an earthquake, the component can be easily replaced; the beam hinge energy dissipation plate and the column hinge energy dissipation plate can be replaced and repaired, thereby greatly reducing the post-earthquake repair workload of the structure, and the damage position of the structure is preset, so that the damage of the structure is controllable. The right beam hinge U-shaped baffle is designed, so that the connection is convenient to manufacture, and mechanical engagement force can be formed during installation, thereby avoiding the erection of installation supports; secondly, the connection of the beam hinge and the column hinge decouples the shear and bending of the traditional joint, and mechanical engagement is established when an earthquake occurs, so that the bending moment is mainly borne by the energy dissipation plate, and the connection strength can be effectively controlled; in addition, the arc surface fitting provides sufficient and flexible rotation capacity; the energy dissipation plates of the beam hinge and the column hinge are installed around the connection by bolts and pegs, and the energy dissipation plates can be replaced by only removing the bolts and pegs when damage occurs; when the performance of the structure needs to be adjusted, the thickness, shape and material of the energy dissipation plate can be replaced to change the performance of the structure, for example, the energy dissipation plate is replaced by a memory alloy plate, and the beam hinge and the column hinge are both changed into self-resetting joints; the assembled anti-buckling replaceable beam-plate-column joint has three lines of defense: the energy dissipation plate is the first line of defense of the structure and mainly provides lateral stiffness for the structure; the limiting bolts and pegs between the beam hinge and the column hinge connection are the second line of defense, which can effectively control the rotation of the connection when the energy dissipation plate is damaged; the grooves and protrusions of the beam hinge and the column hinge are the third line of defense, and the arc fitting and hinge engagement force of the right beam hinge U-shaped baffle can prevent the structure from falling out; compared with the traditional assembled reinforced concrete structure, the structure is convenient to assemble because there is no wet work on the construction site; the replaceable energy dissipation plate is used to concentrate the main deformation of the structure, and the structure can be repaired in a ductile manner by only replacing the energy dissipation plate after an earthquake; the assembled anti-buckling replaceable beam-plate-column joint has simple structure, reasonable stress and can effectively avoid the installation precision of the assembled structure; compared with the traditional same type component, the use of the welding connection mode is reduced, the main force connecting pieces are all connected by bolts and pegs, and the residual stress caused by welding is avoided; the damage position of the traditional assembled structure is difficult to control, the column hinge and the beam hinge are designed, the bearing capacity of the beam hinge is lower than that of the column hinge, the beam hinge can yield before the column hinge, and the bearing capacity of the beam hinge and the column hinge is smaller than that of the prefabricated component connected thereto, so that the structure damage occurs in the expected position and sequence, the structure damage can be precisely controlled, and the structure is easy to widely apply and promote.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] The utility model relates to an assembly type buckling-restrained replaceable beam-plate-column joint and construction steps thereof, the buckling-restrained column hinge and the buckling-restrained beam hinge can bear the bending moment and have the characteristics of flexible rotation according to the "plastic hinge", the buckling-restrained column hinge and the buckling-restrained beam hinge can flexibly rotate when bearing the bending moment, and the structure keeps elasticity under the action of small earthquakes. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is assembly type buckling-restrained replaceable beam-plate-column joint schematic drawing for the utility model described in the utility model;

[0019] Figure 2 It is column hinge structure schematic drawing for the utility model;

[0020] Figure 3 It is beam hinge structure schematic drawing for the utility model;

[0021] Figure 4a It is upper column hinge structure schematic drawing; Figure 4b It is upper column hinge side view;

[0022] Figure 5a It is lower column hinge structure schematic drawing; Figure 5b It is lower column hinge side view;

[0023] Figure 6 It is column energy dissipation plate structure schematic drawing;

[0024] Figure 7a It is prefabricated column structure schematic drawing; Figure 7b It is prefabricated column side view;

[0025] Figure 8 It is left beam hinge structure schematic drawing;

[0026] Figure 9 It is right beam hinge structure schematic view;

[0027] Figure 10 It is beam energy dissipation plate structure schematic view;

[0028] Figure 11 It is prefabricated beam structure schematic view;

[0029] Figure 12 It is prefabricated plate structure schematic view;

[0030] Figure 13 It is the buffer rubber insert and beam energy dissipation plate combined connection structure schematic view of the utility model;

[0031] Figure 14 It is the mechanical property schematic view of energy dissipation plate of the utility model;

[0032] Figure 15 It is the equivalent stress analysis diagram of node yield state;

[0033] Figure 16 It is the beam node hysteretic curve contrastive drawing;

[0034] Figure 17 It is the column node hysteretic curve contrastive drawing;

[0035] Figure 18 It is the bearing capacity contrastive drawing;

[0036] Figure 19 It is the concrete compression damage contrastive drawing;

[0037] Wherein, upper column hinge 1, lower column hinge 2, column energy dissipation plate 3, prefabricated column 4, left beam hinge 5, right beam hinge 6, beam energy dissipation plate 7, prefabricated beam 8, prefabricated plate 9, buffer rubber insert 10;Upper column hinge square steel pipe 011, upper column hinge dry letter type side plate 012, upper column hinge limiting hole 013, upper column hinge baffle 014, lower column hinge square steel pipe 021, lower column hinge dry letter type side plate 022, lower column hinge limiting hole 023, lower column hinge baffle 024, column energy dissipation rubber 031, column energy dissipation steel plate 032, left beam hinge piece 051, left beam hinge C-shaped baffle 052, left beam hinge horizontal stiffening rib plate 053, left beam hinge flange plate limiting hole 054, left beam hinge baffle limiting hole 055, right beam hinge piece 061, right beam hinge U-shaped baffle 062, right beam hinge flange plate limiting hole 063, right beam hinge baffle limiting hole 064, beam energy dissipation rubber 071, beam energy dissipation steel plate 072, I-shaped steel 081, C-shaped stirrup 082, longitudinal reinforcement 083, fire-retardant foam block 084, concrete layer 085, pre-buried hole 091. DETAILED DESCRIPTION

[0038] A component with a replaceable connection node includes an upper column hinge 1, a lower column hinge 2, a prefabricated column 4, a left beam hinge 5, a right beam hinge 6, a prefabricated beam 8 and a prefabricated plate 9. The upper and lower ends of the prefabricated column 4 are respectively provided with an upper column hinge 1 and a lower column hinge 2. The upper column hinge 1 or the lower column hinge 2 is fixedly connected to the left beam hinge 5. The side of the prefabricated beam 8 is provided with a right beam hinge 6. The prefabricated column 4 is connected to the prefabricated beam 8 by plugging the left beam hinge 5 and the right beam hinge 6. The prefabricated beam 8 is covered with a prefabricated plate 9 to form a beam-plate-column node; the left beam hinge 5 is provided with a left beam hinge C-shaped baffle 052, and the right beam hinge 6 is provided with a right beam hinge U-shaped baffle 062. The arc section of the left beam hinge C-shaped baffle 052 and the arc section of the right beam hinge U-shaped baffle 062 fit together.

[0039] A beam energy absorbing plate 7 is connected between the left beam hinge 5 and the right beam hinge 6 . The beam energy absorbing plate 7 is located on the side, upper part or lower part of the C-shaped baffle 052 and the right beam hinge U-shaped baffle 062 .

[0040] The left beam hinge 5 is divided into a left beam hinge 051, a left beam hinge C-shaped baffle 052, a left beam hinge horizontal stiffening rib 053, a left beam hinge flange plate limiting hole 054 and a left beam hinge baffle limiting hole 055; the right beam hinge 6 is divided into a right beam hinge 061, a right beam hinge U-shaped baffle 062, a right beam hinge flange plate limiting hole 063 and a right beam hinge baffle limiting hole 064; the left beam hinge 051 and the right beam hinge 061 are plugged in, the left beam hinge C-shaped baffle 052 and the right beam hinge U-shaped baffle 062 are plugged in, and the left beam hinge C-shaped baffle 052 and the right beam hinge U-shaped baffle 062 are plugged in. The arc segments are in fit contact, a left beam hinge baffle limiting hole 055 is provided on the left beam hinge C-shaped baffle 052, and a right beam hinge baffle limiting hole 064 is provided on the right beam hinge U-shaped baffle 062. The left beam hinge baffle limiting hole 055 is a circular hole, and the right beam hinge baffle limiting hole 064 is a strip hole. Bolts pass through the left beam hinge baffle limiting hole 055 and the right beam hinge baffle limiting hole 064 to fix the left beam hinge 5 and the right beam hinge 6. A buffer rubber plug-in 10 is bonded to the gap between the left beam hinge 5 and the right beam hinge 6.

[0041] There are two beam energy absorbing plates 7 between the left beam hinge 5 and the right beam hinge 6, which are respectively located on the two sides or upper and lower parts of the C-shaped baffle 052 and the right beam hinge U-shaped baffle 062. Figure 1 and 13 As shown, four beam energy absorbing plates 7 can be provided between the left beam hinge 5 and the right beam hinge 6, and are respectively located on both sides and the upper and lower parts of the joint between the C-shaped baffle 052 and the right beam hinge U-shaped baffle 062.

[0042] The upper column hinge 1 is composed of an upper column hinge square steel pipe 011, an upper column hinge H-shaped side plate 012 and an upper column hinge baffle 014. The upper column hinge square steel pipe 011 is provided with the upper column hinge H-shaped side plate 012 on the wall thereof, and the upper column hinge baffle 014 is arranged at the end of the upper column hinge square steel pipe 011. The lower column hinge 2 is composed of a lower column hinge square steel pipe 021, a lower column hinge H-shaped side plate 022 and a lower column hinge baffle 024. The lower column hinge square steel pipe 021 is provided with the lower column hinge H-shaped side plate 022 on the wall thereof, and the lower column hinge baffle 024 is arranged at the end of the lower column hinge square steel pipe 021. The upper column hinge baffle 014 and the lower column hinge baffle 024 are arranged in an inclined manner, and the upper column hinge 1 and the lower column hinge 2 are inserted into the upper column hinge baffle 014 and the lower column hinge baffle 024 to be attached to each other.

[0043] The upper column hinge H-shaped side plate 012 is provided with an upper column hinge limiting hole 013, and the lower column hinge H-shaped side plate 022 is provided with a lower column hinge limiting hole 023. The column energy dissipation plate 3 is inserted between the upper column hinge H-shaped side plate 012 and the lower column hinge H-shaped side plate 022. The upper column hinge 1 and the lower column hinge 2 are fixedly connected by the bolts passing through the upper column hinge limiting hole 013 and the lower column hinge limiting hole 023.

[0044] The column energy dissipation plate 3 is composed of a column energy dissipation rubber 031 and a column energy dissipation steel plate 032. The beam energy dissipation plate 7 is composed of a beam energy dissipation rubber 071 and a beam energy dissipation steel plate 072. The column energy dissipation steel plate 032 and the beam energy dissipation steel plate 072 are made of Q235.

[0045] The prefabricated beam 8 includes an I-shaped steel 081, a C-shaped stirrup 082, a longitudinal steel bar 083, a fireproof foam block 084 and a concrete layer 085. The prefabricated plate 9 is provided with a pre-buried hole 091. The I-shaped steel 081 is fixedly provided with a bolt, and is connected to the pre-buried hole 091 of the prefabricated plate 9 by the bolt. The fireproof foam block 084 is bonded between the middle part of the web of the I-shaped steel 081 and the C-shaped stirrup 082. The longitudinal steel bar 083 is bound in the gap of the C-shaped stirrup 082. The height of the fireproof foam block 084 is flush with the inner side of the C-shaped stirrup 082. The C-shaped stirrup 082 is fixed between the fireproof foam block 084 and the upper and lower edges of the I-shaped steel 081, and the concrete layer 085 is poured.

[0046] A mounting method of a connecting node replaceable component includes the following steps:

[0047] S1, a group of prefabricated columns 4 are pre-buried in the foundation. The column energy dissipation plate 3 is inserted between the lower column hinge H-shaped side plate 022 of the prefabricated column 4. The column energy dissipation plate 3 is connected to the prefabricated column 4. The other group of prefabricated columns 4 are inserted into the upper column hinge 1 and the lower column hinge 2 of the pre-buried prefabricated column 4. The left beam hinge 5 of the upper column hinge 1 or the lower column hinge 2 is inserted into the right beam hinge 6 of the prefabricated beam 8.

[0048] S2, the left beam hinge C-shaped baffle 052 of the left beam hinge 5 and the right beam hinge U-shaped baffle 062 of the right beam hinge 6 are fitted, and the angle and bearing stress are adjusted by the arc segment fitting contact of the left beam hinge C-shaped baffle 052 and the right beam hinge U-shaped baffle 062, the left beam hinge 5 and the right beam hinge 6 are fixedly connected through the bolt passing through the left beam hinge baffle limiting hole 055 and the right beam hinge baffle limiting hole 064, the upper column hinge 1 and the lower column hinge 2 are inserted into the upper column hinge baffle 014 and the lower column hinge baffle 024 and are mutually fitted, and the upper column hinge 1 and the lower column hinge 2 are fixedly connected through the bolt passing through the upper column hinge limiting hole 013 and the lower column hinge limiting hole 023; the first layer beam column installation is completed;

[0049] S3, the prefabricated plate 9 is combined and connected with the prefabricated beam 8 through the embedded hole 091, and the first layer beam plate column installation is completed;

[0050] S4, repeat the above steps, and complete the assembly of the assembly type by layer beam plate column splicing.

[0051] Further illustrated in combination with specific implementation cases as follows:

[0052] The upper column hinge is composed of a square steel tube, an upper column hinge bottom plate, an upper column hinge I-shaped side plate, and an upper column hinge baffle. The upper column hinge I-shaped side plate is formed by cutting a T-shaped side plate from a web of an I-shaped steel in the middle, then welding two ear plates on both sides of the web at a distance of 5mm from the horizontal plate of the T-shaped side plate, and the total thickness of the two ear plates and the web is equal to the length of the horizontal plate of the T-shaped side plate. A right triangle is cut on the web from the cutting position of the web to the ear plate, the long leg of the triangle is along the cutting line of the web, and the short leg is the height of the web. The length of the ear plate is 25mm, which is used to weld the upper column hinge baffle. The horizontal plate of the T-shaped side plate is cut into a convex shape with a length of 97mm and a width of 70mm. Finally, four identical upper column hinge I-shaped side plates are welded on the longitudinal center lines of the four sides of the square steel tube by the middle cutting line of the web. The upper column hinge baffle is symmetrically and perpendicularly welded on the web with the bevel of the upper column hinge I-shaped side plate. The upper column hinge bottom plate is welded on the bottom of the square steel tube and the square steel tube is filled with concrete.

[0053] The buckling-restrained replaceable beam joint comprises a left beam hinge, a right beam hinge and a energy dissipation plate. The left beam hinge is composed of an I-shaped steel and a left beam hinge baffle. Two ear plates are welded on both sides of the web plate of the I-shaped steel at a distance of 5mm from the inner side of the upper and lower flange plates on the side close to the lower column hinge. The total thickness of the two ear plates and the web plate is equal to the width of the flange plate of the I-shaped steel of the left beam hinge, and the length is less than 60mm of the flange plate. Then the web plate of the I-shaped steel away from the lower column hinge side is cut into a C shape and welded with the left beam hinge baffle. The left beam hinge baffle is welded on the web plate along the central axis, and the flange plate of the I-shaped steel away from the lower column hinge side is cut into a convex shape with a length of 100mm and a width of 90mm. Finally, a stiffening rib is welded at the connection between the left side 1 / 3 point of the web plate and the lower column hinge. The right beam hinge is composed of an I-shaped steel and a right beam hinge baffle. Two ear plates are welded on both sides of the web plate of the I-shaped steel at a distance of 5mm from the inner side of the upper and lower flange plates on the side close to the prefabricated beam. The total thickness of the two ear plates and the web plate is equal to the width of the flange plate of the I-shaped steel of the left beam hinge, and the length is less than 60mm of the flange plate. Then the web plate of the I-shaped steel away from the prefabricated beam is cut into a U shape and the excess part is cut off. The right beam hinge baffle is welded on the web plate along the central axis, and the flange plate of the I-shaped steel away from the prefabricated beam side is cut into a groove shape with a length of 100mm and a width of 90mm. The U-shaped baffle is cut in half from the body of a round steel pipe. The left beam hinge and the right beam hinge U-shaped baffle are pre-buried with four limiting holes at the corresponding position. The hole positions are symmetrical up and down and left and right, the horizontal distance between the two hole positions is 90mm, and the vertical distance is 116mm.

[0054] The energy dissipation plate is made of rectangular Q235 soft steel and rubber; the bolt pin is used to arrange the beam energy dissipation plate on the upper and lower sides of the left beam hinge and the right beam hinge, so as to assemble the anti-buckling replaceable beam joint; the bolt pin is used to arrange the column energy dissipation plate on the four side edges of the upper column hinge and the lower column hinge, so as to assemble the anti-buckling replaceable column joint; the prefabricated prefabricated beam comprises an I-shaped steel, a C-shaped stirrup, longitudinal steel bars, fireproof foam blocks, bolts, bolt pins and concrete; a bolt pin is welded on the middle axis of the transverse plate on both sides of the inner web of the I-shaped steel every 33 mm, the first interval of the transverse plate on both sides of the I-shaped steel is 100 mm at the position of 34 mm away from the middle axis of the outer transverse plate, and then a bolt is welded every 200 mm to connect the prefabricated plate, the fireproof foam is bonded between the C-shaped stirrup and the middle part of the web by using glue, then the steel bars are bound in the gap between the C-shaped stirrup, the height of the fireproof foam is flush with the inner side of the C-shaped stirrup, the C-shaped stirrup is fixed between the fireproof foam and the upper and lower edges of the I-shaped steel and the concrete is poured; the column energy dissipation plate is completely clamped in the gap between the I-shaped side plates on both sides of the upper column hinge and the lower column hinge, so as to provide lateral bearing capacity and bending bearing capacity for the structure, and the bending and lateral stiffness of the column can be adjusted due to the adjustable thickness of the steel plate of the column energy dissipation plate; the T-shaped side plates of the upper column hinge and the lower column hinge facilitate the splicing of the upper column hinge and the lower column hinge, and provide lateral bearing capacity and bending bearing capacity for the structure; the cross section of the left beam hinge baffle is C-shaped, the cross section of the right beam hinge baffle is semicircular, and the difference between the two is the thickness of one baffle, so as to facilitate the connection of the two; the left beam hinge baffle and the right beam hinge baffle are provided with limiting holes at the same position of the cross section, the bolts are connected to generate rotational friction to consume energy, and the structure is provided with shear bearing capacity to limit the rotation angle of the beam joint; the limiting holes are provided at the same position of the cross section of the I-shaped side plates on both sides of the upper column hinge and the lower column hinge, so as to provide shear bearing capacity for the structure while limiting the rotation angle of the column joint; the beam energy dissipation plate is completely clamped in the gap between the I-shaped side plates on both sides of the left beam hinge and the right beam hinge, so as to provide lateral bearing capacity and bending bearing capacity for the structure, and the bending and lateral stiffness of the beam can be adjusted due to the adjustable thickness of the steel plate of the beam energy dissipation plate; the transverse plate of the T-shaped side plate of the upper column hinge is cut into a convex shape, and the transverse plate of the T-shaped side plate of the lower column hinge is cut into a concave shape, so as to facilitate the connection of the upper column hinge and the lower column hinge and provide lateral bearing capacity and bending bearing capacity for the structure; a stiffening rib is welded at the position of 1 / 3 of the connection between the left beam hinge close to the lower column hinge and the lower column hinge, so as to strengthen the connection of the left beam hinge and the lower column hinge and provide bending bearing capacity for the beam; the middle part of the web of the prefabricated beam adopts fireproof foam blocks, so as to reduce the dead weight and increase the bending bearing capacity.

[0055] The bolt pins are welded on the middle axis of the transverse plate on both sides of the inner web of the I-shaped steel, so as to strengthen the connection of the I-shaped steel and the concrete and the fireproof foam block; the bolts are welded on the transverse plate on both sides of the I-shaped steel at the position of 34 mm away from the middle axis of the outer transverse plate, so as to strengthen the connection with the prefabricated plate; the limiting holes are provided at the corresponding positions of the prefabricated plate, so as to strengthen the connection with the beam; the foaming fireproof foam glue is injected into the connection gap between the beam and the prefabricated plate, so as to make the structure more beautiful and strengthen the connection between the beam and the prefabricated plate.

[0056] The utility model is further explained and demonstrated in combination with the accompanying drawings and specific embodiments, and it should be noted that the utility model is not limited to the following specific embodiments, and equivalent transformations made on the basis of the technical solutions of the application all fall within the protection scope of the utility model. Figures 1-12 The utility model discloses a kind of assembled buckling-restrained replaceable beam-slab-column nodes and its construction steps, it is characterized in that, including upper column hinge 1, lower column hinge 2, column energy dissipation plate 3, prefabricated column 4, left beam hinge 5, right beam hinge 6, beam energy dissipation plate 7, prefabricated beam 8, prefabricated slab 9;Buckling-restrained replaceable beam hinge left beam hinge 5 one end is welded on buckling-restrained replaceable lower column hinge 2, buckling-restrained replaceable beam hinge right beam hinge 6 is welded on prefabricated beam 8;Structural upper column hinge 1 and lower column hinge 2 are assembled by peg and column energy dissipation plate 3, column component is connected into a whole, left beam hinge 5 and right beam hinge 6 are assembled by bolt and beam energy dissipation plate 7, and beam component is connected on column component to form frame structure.

[0057] Figures 1-12 Upper column hinge 1 includes upper column hinge square steel pipe 011, upper column hinge T-shaped side plate 012, upper column hinge limiting hole 013, upper column hinge baffle 014;Upper column hinge square steel pipe 011 is a length of square steel pipe;Upper column hinge T-shaped side plate 012 is formed T-shaped side plate by I-shaped steel from web middle truncation, then two pieces of lug plate are welded on the both sides of T-shaped side plate, and a right triangle is cut on the web from the truncation of web to lug plate, and upper column hinge limiting hole 013 is arranged on flange;Upper column hinge baffle 014 is made of square steel plate;Four upper column hinge T-shaped side plates 012 of same size are symmetrically welded on the symmetry axes of four surfaces of upper column hinge square steel pipe 011, and finally upper column hinge baffle 014 is symmetrically and perpendicularly welded on the web with bevel of upper column hinge T-shaped side plate 012.

[0058] Lower column hinge 2 includes lower column hinge square steel pipe 021, lower column hinge T-shaped side plate 022, lower column hinge limiting hole 023, lower column hinge baffle 024;Lower column hinge square steel pipe 021 is a length of square steel pipe;Lower column hinge T-shaped side plate 022 is formed T-shaped side plate by I-shaped steel from web middle truncation, then two pieces of lug plate are welded on the both sides of T-shaped side plate, and a right triangle is cut on the web from the truncation of web to lug plate, and lower column hinge limiting hole 023 is arranged on flange;Lower column hinge baffle 024 is made of square steel plate;Four lower column hinge T-shaped side plates 022 of same size are symmetrically welded on the symmetry axes of four surfaces of lower column hinge square steel pipe 021, and finally lower column hinge baffle 024 is symmetrically and perpendicularly welded on the web with bevel of lower column hinge T-shaped side plate 022.

[0059] Lower column hinge 2 includes lower column hinge square steel pipe 021, lower column hinge T-shaped side plate 022, lower column hinge limiting hole 023, lower column hinge baffle 024;Lower column hinge square steel pipe 021 is a length of square steel pipe;Lower column hinge T-shaped side plate 022 is formed T-shaped side plate by I-shaped steel from web middle truncation, then two pieces of lug plate are welded on the both sides of T-shaped side plate, and a right triangle is cut on the web from the truncation of web to lug plate, and lower column hinge limiting hole 023 is arranged on flange;Lower column hinge baffle 024 is made of square steel plate;Four lower column hinge T-shaped side plates 022 of same size are symmetrically welded on the symmetry axes of four surfaces of lower column hinge square steel pipe 021, and finally lower column hinge baffle 024 is symmetrically and perpendicularly welded on the web with bevel of lower column hinge T-shaped side plate 022.

[0060] ​The column energy dissipation plate 3 is made of rubber 031 and rectangular Q235 soft steel 032; the stud passes through the column energy dissipation plate mounting hole 033 to install the column energy dissipation plate on the four sides of the upper column hinge and the lower column hinge, thereby assembling the buckling-restrained replaceable column joint;

[0061] The prefabricated column 4 is a prefabricated steel reinforced concrete column; the left beam hinge 5 includes a left beam hinge piece 051, a left beam hinge C-shaped baffle 052, a left beam hinge horizontal stiffening rib plate 053, a left beam hinge flange plate limiting hole 054 and a left beam hinge baffle limiting hole 055; the left beam hinge piece 051 is made by welding two ear plates on both sides of the inner web plate of the I-shaped steel near the upper and lower flange plates on the column side, then cutting the web plate away from the column side into a C shape, and opening the left beam hinge flange plate limiting hole 054 on the upper surface; the left beam hinge C-shaped baffle 052 is made by bending a square steel plate according to the shape of the slot on the web plate away from the column side of the left beam hinge, and symmetrically opening four left beam hinge baffle limiting holes 055 in the middle plate; the left beam hinge horizontal stiffening rib plate 053 is made by cutting a square steel plate; the left beam hinge baffle 052 is welded on the web plate along the central axis, and the flange plate of the I-shaped steel is cut into a convex shape, and finally the stiffening rib plate 053 is welded at the connection between the web plate near the column side and the lower column hinge to strengthen the compression resistance of the left beam hinge 5; the right beam hinge 6 includes a right beam hinge piece 061, a right beam hinge U-shaped baffle 062, a right beam hinge flange plate limiting hole 063 and a right beam hinge baffle limiting hole 064; the right beam hinge piece 061 is made by welding two ear plates on both sides of the inner web plate of the I-shaped steel near the upper and lower flange plates on the beam side, then cutting the web plate between the two ear plates away from the beam side into a U shape and removing the excess part, and opening the right beam hinge flange plate limiting hole 063 on the upper surface; the right beam hinge U-shaped baffle 062 is made by bending a square steel plate according to the shape of the slot on the web plate of the right beam hinge, and symmetrically opening four right beam hinge limiting holes 064 in the middle plate; the right beam hinge U-shaped baffle 064 is welded on the web plate along the central axis, and the flange plate of the I-shaped steel is cut into a groove shape. The beam energy dissipation plate 7 is made of rubber 071 and rectangular Q235 soft steel 072; the stud passes through the beam energy dissipation plate mounting hole 073 to install the beam energy dissipation plate on the upper and lower edges of the left beam hinge and the right beam hinge, thereby assembling the buckling-restrained replaceable beam joint;

[0062] The prefabricated beam 8 includes an I-shaped steel 081, a C-shaped stirrup 082, a longitudinal steel bar 083, a fire-retardant foam block 084 and concrete 085; studs are welded on the central axis of the transverse plates on both sides of the inner web plate of the I-shaped steel 081, bolts are welded on both sides of the transverse plates outside the I-shaped steel 081 to connect with the prefabricated plate 9, the fire-retardant foam block 084 is bonded between the C-shaped stirrup 082 and the middle part of the web plate by using glue, then the longitudinal steel bar 083 is bound in the gap between the C-shaped stirrup 082, the height of the fire-retardant foam block 084 is flush with the inner side of the C-shaped stirrup 082, the C-shaped stirrup 082 is fixed between the fire-retardant foam block 084 and the upper and lower edges of the I-shaped steel 081 and the concrete 085 is poured; corresponding clamping grooves are opened on the prefabricated plate 9 and corresponding holes 091 are embedded at corresponding positions to connect with the beam by bolts.

[0063] The working mechanism of the structure and the analysis of application effect are as follows:

[0064] The column energy dissipation plate 3 is installed on the beam joint, and the beam energy dissipation plate 7 is installed on the column joint. According to the design criterion of the seismic specification “strong shear and weak bending”, the beam joint and the column joint need to meet the design criterion of the seismic specification “strong shear and weak bending”. However, during an earthquake, the column serves as the main lateral force resisting member, and it is necessary to avoid large deformation of the column joint. Therefore, the beam energy dissipation plate 7 requires high strength and ductile steel and rubber in the design. The column energy dissipation plate 3 is installed in the plastic hinge region of the beam, and it needs to yield before the column joint during an earthquake, thereby increasing the deformation capacity of the structure and dissipating seismic energy. Therefore, the column energy dissipation plate 3 is designed to use Q235 soft steel.

[0065] The mechanical properties of the energy dissipation plate are shown in FIG. 1. Figure 14 At the initial loading stage of the bionic steel hinge, both the tensile and compressive energy dissipation plates are in the elastic state. Therefore, these plates can be considered as elastic springs. As the rotation angle of the bionic hinge increases, the compressive side energy dissipation plate will initially experience out-of-plane deformation. Although both sides are equipped with buckling-restrained plates and rubber supports to control the deformation, the rotation of the femur and tibia connection widens the gap between the energy dissipation plate and the rubber block. This causes the out-of-plane deformation of the energy dissipation plate to be smaller than the gap width. As the load increases, the compressive side energy dissipation plate experiences greater out-of-plane deformation compared to the gap. Therefore, this deformation triggers the compression of the energy dissipation plate against the rubber, thereby initiating the role of the rubber in providing lateral support to mitigate further out-of-plane deformation. When the elastic force provided by the compression of the rubber is not enough to counteract the lateral support force required for the out-of-plane buckling of the energy dissipation plate, out-of-plane instability occurs. Otherwise, the compression side of the energy dissipation plate will continue to experience out-of-plane buckling deformation. Eventually, the tear failure occurs in the weakened region of the energy dissipation plate. As the loading time increases, the plate withstands more than 30-40 repeated tensile and compressive cycles, resulting in plastic damage mainly accumulating in its weakened region.

[0066] The whole working process of RBHC can be divided into three stages according to the working state of the energy dissipation steel plate: elastic stage, yield stage and failure stage. 1) In the initial stage, the energy dissipation steel plates around the RBHC are in the elastic stage. The bending capacity of the RBHC increases sharply with the displacement of the load in a linear manner. At the same time, the surrounding energy dissipation steel plates provide sufficient lateral stiffness for the structure to withstand external loads. The second stage: yield stage: as the displacement increases, the energy dissipation steel plate on the compression side will first deform out of the plane and reach the compression yield. Subsequently, the energy dissipation steel plate on the tension side reaches the tensile yield stress due to significant deformation. When both sides of the energy dissipation steel plate reach the compression and tensile yield stress, the front and back steel plates are in a tensile state, and the stress distribution is roughly triangular. At this point, the load enters the yield platform, and the node begins to exhibit plastic deformation. The third stage: failure stage: as the displacement load amplitude further increases, the plastic deformation of the energy dissipation steel plate continues to increase. In addition, the rate of increase exceeds the rate of load, resulting in a gradual decrease in the load-carrying capacity of the node.

[0067] During the whole working process of RBHC, the load-carrying capacity of the node is mainly shared by two parts: one part is the energy dissipation steel plate, and the other part is the interaction of the femoral shoe and the tibial shoe connected by the replaceable bionic hinge under the action of vertical force. Although these two parts share the load, the deformation of the node is mainly provided by the energy dissipation steel plate. The equivalent stress analysis diagram of the node in the yield state is shown in Figure 15 Therefore, the following assumptions are made for the analysis of load-carrying capacity and deformation:

[0068] Stage 1: RBHC is composed of prefabricated reinforced concrete members, femoral shoes and tibial shoes. During the calculation process, these components can be considered as rigid bodies due to their relatively small deformation. In addition, the relative slip between the concrete members and the steel members is not considered.

[0069] Stage 2: The center of rotation of the node is located at point O on the tibial shoe.

[0070] Stage 3: In the analysis and design of RBHC (RBHC), it is assumed that the strain distribution on the cross section satisfies the plane section assumption in material mechanics.

[0071] 3. Test and finite element results

[0072] (1) Beam

[0073] From the failure states of beam joint seismic tests, it can be seen that the specimen assembly and energy dissipation plate have the same geometry and material, except that specimen 1 has an added buckling-restrained energy dissipation plate. From the failure states of the two, it can be seen that the failure of the joint is located on the energy dissipation plate, and the damage location of the joint can be controlled; in addition, almost all other components of the joint have no obvious deformation and are in an elastic state, indicating that the joint can achieve ductility repair performance, and only the replacement of the energy dissipation plate can be achieved by removing the bolts on the energy dissipation plate. From the hysteresis curves of the two joints, it can be seen that the hysteresis curves are obviously stable and symmetrical. It is worth noting that compared with specimen 2, the hysteresis curve of specimen 1 with only rubber is significantly increased in fullness, and the yield load of specimen 2 (92.45 kN) is 46.00% higher than that of specimen 1. Rubber can significantly improve the load-carrying capacity of the thin plate during buckling. Installing buckling-restrained components on both sides of the energy dissipation plate is an effective strategy to improve the energy dissipation capacity of RBHJ.

[0074] (2) Column

[0075] The specimen is labeled APHF-2-300. Based on the finite element method of specimen APHF-2-300, a column joint is added to specimen APHF-2-300, which is designated as specimen RBHC-2-300. The hysteresis performance and failure mode of APHF-2-300 and RBHC-2-300 specimens are analyzed and compared. The hysteresis curves of APHF-2-300 and RBHC-2-300 specimens are shown in Figure 16 . The hysteresis curve of specimen RBHC-2-300 is typical “Z” shape. Compared with APHF-2-300 specimen, the yield strength and ultimate load of RBHC-2-300 specimen are increased by 36.64% and 21.3%, respectively. As Figure 17 shown in, the load-carrying capacity of RBHC-2-300 specimen gradually decreases after reaching the peak load-carrying capacity. When the displacement amplitude reaches 72 mm, the load of APHF-2-300 specimen decreases by 34.43% compared with the peak load, while the load of RBHC-2-300 specimen decreases by only 9.03%. This observation shows that the specimen equipped with RBHC exhibits better ductility compared with the reinforced concrete column footing specimen.

[0076] The compression damage distribution of concrete in the final state is shown in Figure 19 . It can be inferred that the APHF-2-300 specimen experiences severe compression damage at the column base, which eventually leads to compression failure at this location. In contrast, the RBHC-2-300 specimen is equipped with RBHC devices at the column base, effectively controlling the plastic damage to concentrate on the energy dissipation thin plate of RBHC. The compression damage observed in the column base concrete is minimal. Therefore, RBHC can effectively concentrate plastic deformation on the energy dissipation thin plate, solving the problem of column base compression failure. After the earthquake, the function of the structure can be restored by replacing the energy dissipation thin plate.

Claims

1. A connecting node replaceable component, characterized in that The utility model relates to a kind of beam-slab-column joint, including upper column hinge (1), lower column hinge (2), prefabricated column (4), left beam hinge (5), right beam hinge (6), prefabricated beam (8) and prefabricated slab (9), prefabricated column (4) upper and lower ends are respectively equipped with upper column hinge (1) and lower column hinge (2), upper column hinge (1) or lower column hinge (2) is fixedly connected with left beam hinge (5), prefabricated beam (8) side is equipped with right beam hinge (6), prefabricated column (4) is combinedly connected with prefabricated beam (8) by left beam hinge (5) and right beam hinge (6) insertion, prefabricated beam (8) is overlaid prefabricated slab (9) and forms beam-slab-column joint;Left beam hinge (5) is equipped with left beam hinge C-shaped baffle (052), right beam hinge (6) is equipped with right beam hinge U-shaped baffle (062), the arc section of left beam hinge C-shaped baffle (052) and the arc section of right beam hinge U-shaped baffle (062) are mutually pasted;Beam energy dissipation plate (7) is connected between the left beam hinge (5) and right beam hinge (6), and the beam energy dissipation plate (7) is located at the side, upper portion or lower portion of C-shaped baffle (052) and right beam hinge U-shaped baffle (062).

2. The replaceable component of claim 1, wherein The left beam hinge (5) is divided into left beam hinge piece (051), left beam hinge C-shaped baffle (052), left beam hinge horizontal stiffening rib plate (053), left beam hinge flange plate limiting hole (054) and left beam hinge baffle limiting hole (055);Right beam hinge (6) is divided into right beam hinge piece (061), right beam hinge U-shaped baffle (062), right beam hinge flange plate limiting hole (063) and right beam hinge baffle limiting hole (064);Left beam hinge piece (051) and right beam hinge piece (061) are inserted, the arc section of left beam hinge C-shaped baffle (052) and the arc section of right beam hinge U-shaped baffle (062) are pasted contact, left beam hinge baffle limiting hole (055) is set on left beam hinge C-shaped baffle (052), right beam hinge baffle limiting hole (064) is set on right beam hinge U-shaped baffle (062), left beam hinge baffle limiting hole (055) is circular hole, right beam hinge baffle limiting hole (064) is strip hole, bolt is fixedly connected left beam hinge (5) with right beam hinge (6) by left beam hinge baffle limiting hole (055) and right beam hinge baffle limiting hole (064), and the gap of left beam hinge (5) and right beam hinge (6) is bonded with buffer rubber insert (10).

3. The replaceable component of claim 2, wherein Two beam energy dissipation plates (7) are arranged between the left beam hinge (5) and the right beam hinge (6), and are located at the two side portions or upper and lower portions of the C-shaped baffle (052) and the right beam hinge U-shaped baffle (062).

4. The replaceable component of claim 2, wherein The upper column hinge (1) is composed of an upper column hinge square steel pipe (011), an upper column hinge T-shaped side plate (012) and an upper column hinge baffle (014), the upper column hinge square steel pipe (011) is provided with the upper column hinge T-shaped side plate (012) on the wall of the pipe, and the upper column hinge baffle (014) is arranged on the end of the upper column hinge square steel pipe (011); the lower column hinge (2) is composed of a lower column hinge square steel pipe (021), a lower column hinge T-shaped side plate (022) and a lower column hinge baffle (024), the lower column hinge square steel pipe (021) is provided with the lower column hinge T-shaped side plate (022) on the wall of the pipe, and the lower column hinge baffle (024) is arranged on the end of the lower column hinge square steel pipe (021), the upper column hinge baffle (014) and the lower column hinge baffle (024) are arranged in an inclined manner, and the upper column hinge (1) and the lower column hinge (2) are inserted into the upper column hinge baffle (014) and the lower column hinge baffle (024) to be attached to each other.

5. The replaceable component of claim 4, wherein The upper column hinge T-shaped side plate (012) is provided with an upper column hinge limiting hole (013), the lower column hinge T-shaped side plate (022) is provided with a lower column hinge limiting hole (023), the column energy consumption plate (3) is inserted between the upper column hinge T-shaped side plate (012) and the lower column hinge T-shaped side plate (022), and the upper column hinge (1) and the lower column hinge (2) are fixedly connected by bolts through the upper column hinge limiting hole (013) and the lower column hinge limiting hole (023).

6. The replaceable component of claim 5, wherein The column energy consumption plate (3) is composed of a column energy consumption rubber (031) and a column energy consumption steel plate (032), and the beam energy consumption plate (7) is composed of a beam energy consumption rubber (071) and a beam energy consumption steel plate (072), and the column energy consumption steel plate (032) and the beam energy consumption steel plate (072) are made of Q235.

7. The replaceable component of claim 1, wherein The prefabricated beam (8) comprises an I-shaped steel (081), a C-shaped stirrup (082), a longitudinal steel bar (083), a fireproof foam block (084) and a concrete layer (085), the prefabricated plate (9) is provided with a pre-buried hole (091), the I-shaped steel (081) is fixedly provided with a bolt, and the bolt is connected with the pre-buried hole (091) of the prefabricated plate (9), the fireproof foam block (084) is bonded between the middle part of the web of the I-shaped steel (081) and the C-shaped stirrup (082), the longitudinal steel bar (083) is bound in the gap of the C-shaped stirrup (082), the height of the fireproof foam block (084) is flush with the inner side of the C-shaped stirrup (082), the C-shaped stirrup (082) is fixed between the fireproof foam block (084) and the upper and lower edges of the I-shaped steel (081) and pours the concrete layer (085).

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