CN117780148A

CN117780148A - Emergency reinforcing core block, monomer and emergency density reinforcement reinforcing method for beam fracture

Info

Publication number: CN117780148A
Application number: CN202410163539.2A
Authority: CN
Inventors: 张雷; 付强; 李泓昊; 张中昊
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2024-02-05
Filing date: 2024-02-05
Publication date: 2024-03-29

Abstract

The invention relates to an emergency reinforcing core block, a single body and an emergency density reinforcement reinforcing method for beam fracture, which belong to the technical field of building structures, and when the beam member is subjected to heavy hanging load or the service function of the beam member is changed without design verification, emergency remedy lacking in beam reinforcement corresponds to a quantitative treatment mode; the top surface of the hollowed-out steel box is provided with two sockets, and the multi-position folded plate is obliquely arranged between the front broken line-shaped opening and the rear broken line-shaped opening; the emergency density reinforcement method is a quantitative configuration process for configuring the number of emergency reinforcement monomers, the number of rear reinforcing bars and the connection positions according to the width and the breaking depth dimension between two reinforcing bar broken ends in a beam body breaking part.

Description

Emergency reinforcing core block, monomer and emergency density reinforcement reinforcing method for beam fracture

Technical Field

The invention particularly relates to an emergency reinforcing core block for beam fracture, a single body and an emergency density reinforcement reinforcing method, and belongs to the technical field of building structures.

Background

Concrete beams are one of the common elements in a building, which function to bear the weight of the building and transfer it to a supporting structure. However, in the use process, the damage of the concrete beam often causes collapse of the building, resulting in significant loss. Therefore, the method has great significance for building safety by deeply analyzing the damage reason of the concrete beam. The basic principle of the concrete beam is that the concrete beam consists of concrete and steel bars. Concrete is a very strong material, but its tensile strength is relatively low, while steel bars have very high tensile strength. The concrete beam has the function that when being stressed, the concrete bears the compression force, the steel bars bear the tension force, and the concrete beam and the steel bars cooperate with each other to form the integral bearing capacity. The cause of the fracture of a concrete beam is generally caused by the following reasons:

1. the bending stress is overlarge, and the concrete beam can generate bending stress when being stressed in the using process of the building. If the bending stress is too great, it may cause breakage of the concrete beam. This typically occurs when the concrete beam spans a relatively large span, is loaded relatively heavy, and has a relatively small cross-sectional dimension.

2. The shear stress is too large, and besides the bending stress, the concrete beam can generate the shear stress when being stressed. If the shear stress is too great, it may cause breakage of the concrete beam. This typically occurs when the concrete beam is of a smaller cross-sectional size and is heavily loaded.

3. Poor concrete quality is one of the important factors affecting the performance of concrete beams. If the quality of the concrete is poor, it may cause breakage of the concrete beam. This is often the case when the concrete mix is not reasonable, curing is not proper, and the concrete contains a large amount of impurities.

4. The steel bar is rusted, and the steel bar is an important component part in the concrete beam, and if the steel bar is rusted, the concrete beam can be broken. This often occurs when the concrete beam is not cured properly, the service time is long, and the like.

When the cross section size, span, load and other parameter configurations of the concrete beam are unreasonable, the bending fracture of the concrete can be induced under the condition of overlarge bending stress and shearing stress. When the beam member receives heavy hanging load and the service function is changed after calculation and check due to the fact that a large-sized pendant lamp, an exhaust channel or other hanging external hanging objects are connected to the concrete beam in a rear mode, the problems that bending stress and shearing stress of the beam member are overlarge easily occur, and quick emergency treatment measures capable of corresponding adaptation are lacked once the concrete beam breaks. In addition, when the building suffers from external accidental impact or other emergency, the concrete is cracked, the reinforcing steel bar part is lost, the bending degree of other residual reinforcing steel bars is inconsistent, the emergency repair process is difficult to realize, the emergency repair of the invasive structure is required to be safely processed, and the emergency repair lacking beam reinforcement corresponds to a quantitative processing mode.

Disclosure of Invention

In order to overcome the defects existing in the prior art, an emergency reinforcing core block, a single body and an emergency density reinforcement reinforcing method for beam fracture are provided.

The emergency reinforcing core block for beam fracture comprises a hollow steel box, wherein the hollow steel box comprises a box body, a plurality of hollow holes matched with concrete pouring are formed in the box body, an arc-shaped strip-shaped opening is formed in the top of the hollow steel box, a concave arc-shaped piece is integrally connected to the arc-shaped strip-shaped opening, and the outer wall of the arc-shaped piece is an assembly wall; the top surface of the hollowed-out steel box is provided with two sockets which are respectively arranged at two sides of the arc-shaped strip-shaped opening, two side walls of the hollowed-out steel box are respectively provided with a front fold-line-shaped opening and a rear fold-line-shaped opening which are communicated with the sockets, a multi-position folded plate which is matched with the sockets in a one-to-one correspondence manner is arranged in the hollowed-out steel box, the multi-position folded plate is obliquely arranged between the front fold-line-shaped opening and the rear fold-line-shaped opening, and a multi-position inserting channel is formed among one side wall of the multi-position folded plate, the sockets, the front fold-line-shaped opening, the rear fold-line-shaped opening and the inner wall of the arc-shaped piece; the multi-position folded plate is formed by alternately connecting a plurality of first vertical plates and a plurality of first horizontal plates, and the shape of the inner wall of the arc-shaped sheet is matched with the shape of the multi-position folded plate.

The emergency reinforcing monomer for beam fracture is composed of emergency reinforcing core blocks according to the first, second, third, fourth or fifth specific embodiments, and is characterized in that: the emergency reinforcing core block is arranged in the -shaped supporting piece, the plurality of rear reinforcing bars are detachably connected in the emergency reinforcing core block, the end part of each rear reinforcing bar is a connecting end, and the connecting end of each rear reinforcing bar is connected with each reinforcing bar broken end of the beam body breaking part close to the connecting end;

the -shaped supporting piece comprises a bottom steel plate and two vertical steel plates, wherein the bottom steel plate and the two vertical steel plates are strip-shaped plate bodies, and two ends of the bottom steel plate are respectively integrally connected with one vertical steel plate;

each rear-mounted steel bar comprises a main steel bar body, a connecting clamping block and a plurality of counterweight sleeves, the connecting clamping block is fixedly sleeved on the main steel bar body, the main steel bar body is arranged in the multi-position inserting channel and/or the straight strip-shaped opening in a penetrating mode through the connecting clamping block, and each end of the main steel bar body is sleeved with the counterweight sleeves.

The emergency strengthening method for the beam fracture is realized according to the emergency strengthening monomers in the sixth, seventh, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteen, seventeen or eighteen embodiments, and is a process of assembling and strengthening by correspondingly selecting an adaptive number of emergency strengthening monomer assemblies according to the width and the length of the broken position of the beam fracture part and the broken degree of each steel bar; the emergency density reinforcement method comprises the following steps:

Pretreatment and cleaning: cleaning concrete fragments at the broken part of the beam body, and cleaning the concrete fragments generated by the breaking and the concrete fragments generated by cutting irregular concrete until the exposed length of each steel bar broken end in the broken part of the cleaned beam body is at least 15cm, so that the broken part of the beam body forms a regular wound;

counting and classifying: counting the number of broken ends of the steel bars, classifying the types of broken ends of the steel bars, and analyzing the reason of the broken ends of the original beam, wherein the process of classifying the broken ends of the steel bars is a process of dividing a plurality of rear steel bars into a group-type steel bar group, a straight-type steel bar group and a special-shaped single steel bar according to the bending degree and the aggregation density degree of the steel bars, wherein the group-type steel bar group is a steel bar group formed by broken ends of the steel bars with bending lengths occupying two thirds in at least three exposed lengths which are mutually closed, the group-type steel bar group is correspondingly connected with an emergency reinforcing core block with an extension strut or an emergency reinforcing core block with a counterweight sleeve, the straight-type steel bar group is a steel bar group formed by broken ends of the steel bars with at least three straight-type lengths occupying two thirds, and the special-shaped single steel bar is a steel bar broken end or a single straight bar with different deflection angle from other adjacent broken ends of the steel bars;

after the positions and the number of the group-shaped reinforcing steel bar groups, the straight reinforcing steel bar groups and the special-shaped monomer reinforcing steel bars are determined, cutting the broken ends of the reinforcing steel bars, wherein the included angle between the bending angle of the group-shaped reinforcing steel bar groups and the initial direction of the reinforcing steel bars is larger than 100 degrees, and the length of the broken ends is ensured to be exposed by at least 10 centimeters after cutting;

Measurement: measuring the final length and width of the beam body fracture parts after cleaning, classifying and cutting treatment;

and (3) matching connection: and (3) correspondingly matching the structural form and the number of the emergency reinforcing monomers according to the length and the width of the beam breaking part and the number of the group-shaped reinforcing steel bars, the straight reinforcing steel bars and the special-shaped monomer reinforcing steel bars:

determining the number of emergency reinforcing monomers according to the length of the beam body fracture part, and ensuring that the length of the beam body fracture part is smaller than the total width of a plurality of emergency reinforcing monomers by 5-10 cm;

for the group-shaped steel bar group, correspondingly matching emergency reinforcing core blocks with extension struts and/or emergency reinforcing core blocks with counterweight sleeves, ensuring that the total number of the group-shaped steel bar group, the straight-body steel bar group and the special-shaped single steel bars is matched with the number of the rear steel bars, correspondingly matching 1-3 rear steel bars with larger diameter length for encircling and wrapping, and fixedly connecting each steel bar broken end with the rear steel bars adjacent to the corresponding steel bar broken end;

and (3) formwork supporting and pouring: pouring the plurality of installed emergency reinforcing monomers to realize the pouring process after the connection of the reinforcing steel bars.

The invention has the beneficial effects that:

1. the invention is used for emergency reinforcement treatment under the condition of beam body fracture in the constructed building, is used for rapid emergency reinforcement treatment after various beam causes are broken, can be assembled and reinforced on site without structural modeling accounting, provides a favorable treatment mode for continuous use of the building beam body on the premise of ensuring the subsequent use safety performance, and improves a self-maintenance coping treatment mode when the building is used for emergency sudden damage. According to the emergency reinforcing core block, the box body is provided with the plurality of hollowed holes matched with concrete pouring, the hollowed holes are beneficial to providing space positions for subsequent concrete pouring, and the emergency reinforcing core block and the beam body fracture part are ensured to be combined rapidly and stably.

2. According to the emergency reinforcing monomer, the corresponding emergency reinforcing repair of the beam body fracture parts under different conditions can be realized through the emergency reinforcing monomer in various forms formed by mutually matching the -shaped supporting piece, the emergency reinforcing core block and the rear reinforcing steel bars. The emergency treatment is quick and can realize a stable reinforcement process, even if the real-time reinforcement process is implemented on site, the structural performance of the reinforced part of the emergency treatment for compression resistance and tensile resistance can be superior to that of the original beam body, the emergency treatment meets the specifications and construction requirements, the use safety and continuous stability of the building are ensured, and the high-strength weather-resistant continuous use performance of the reinforced building is improved.

3. According to the emergency density reinforcement method, one-to-one or one-to-many emergency reinforcement structures can be assembled and configured on site according to the actual breaking condition of the original beam body, the structures of the internal structures of the original beam body are repaired correspondingly at the breaking position of the original beam body, the adaptation process is fast, the pouring effect is more uniform, the post-assembly steel-concrete reinforcement process is realized, and the assembly reinforcement mode is ensured to be capable of coping with different breaking degrees and different numbers of steel reinforcement elbows caused by no external factors. The repair device can correspondingly repair the appearance states of the damaged top steel bars, the damaged steel bars on two sides, the damaged middle steel bars or the damaged bottom steel bars in the original beam body, provide comprehensive and rapid coping processing modes for emergency reinforcement, promote coping repairing functions of the building structure coping with sudden damage, and provide reasonable and safe configuration modes for rapid coping under the emergency sudden demand of the building.

Drawings

FIG. 1 is a schematic view of a first front view structure of a beam body in the prior art when the beam body has a beam body fracture site;

FIG. 2 is a schematic diagram of a second front view structure of a beam body in the prior art when the beam body has a beam body fracture site;

FIG. 3 is a schematic perspective view of the connection between an emergency reinforcing core block and a plurality of rear reinforcing bars;

FIG. 4 is a schematic perspective view of a plurality of emergency reinforcing pellets in an assembled state;

FIG. 5 is a schematic perspective view of an emergency reinforcing pellet;

FIG. 6 is a schematic view of the front view of an emergency reinforcing pellet;

fig. 7 is a schematic top view of a -shaped support;

FIG. 8 is a schematic diagram of a front view of an emergency reinforcing unit, wherein three emergency reinforcing core blocks are assembled and arranged in a -shaped support;

FIG. 9 is a schematic perspective view of an emergency reinforcing unit, wherein the emergency reinforcing core block is in a double-fixing structure;

FIG. 10 is a schematic perspective view of an emergency reinforcing unit, wherein the emergency reinforcing core block is in a two-degree-of-freedom structure, and the arrow direction in the figure is the moving direction of the emergency reinforcing core block;

fig. 11 is a schematic perspective view of an extension pole with a plurality of rear reinforcing bars removed;

FIG. 12 is a schematic top view of an emergency reinforcing unit;

Fig. 13 is a schematic diagram of a process of assembling an emergency reinforcing unit and a -shaped support piece to form an emergency reinforcing assembly piece, wherein rear reinforcing steel bars are not shown in the figure, and the direction of an arrow to the left in the figure indicates the insertion direction of a bottom plate;

fig. 14 is a schematic perspective view of an emergency reinforcing core, in which a plurality of vertical flat plates of rear reinforcing steel bars are arranged on one side of the emergency reinforcing core;

fig. 15 is a schematic perspective view of an emergency reinforcing core block, in which a plurality of vertical flat plates of rear reinforcing steel bars are arranged at two sides of the emergency reinforcing core block;

FIG. 16 is a schematic view of a three-dimensional structure of a plurality of emergency reinforcing pellets after splicing;

FIG. 17 is a first perspective view of a cross-shaped emergency reinforcing pellet, the emergency reinforcing pellet being a cross-shaped emergency reinforcing pellet;

FIG. 18 is a second perspective view of a cross-shaped emergency reinforcing pellet, the emergency reinforcing pellet being a cross-shaped emergency reinforcing pellet;

fig. 19 is a schematic perspective view of a connection relationship between a cross-shaped emergency reinforcing core block and a -shaped support member in a hollow structure form, wherein the emergency reinforcing core block is a hollow cross-shaped emergency reinforcing core block;

fig. 20 is a schematic perspective view of a rear reinforcement bar;

FIG. 21 is a schematic cross-sectional front view of a plurality of weight jackets in a first configuration;

FIG. 22 is a schematic cross-sectional front view of a plurality of weight jackets in a second configuration;

FIG. 23 is another schematic front view of a plurality of weight jackets in a second configuration;

FIG. 24 is a schematic view of a longitudinal cross-sectional structure of a reinforcing form;

FIG. 25 is a schematic view of a longitudinal cross-sectional structure of another form of reinforcement;

FIG. 26 is a view of the use of an emergency reinforcing monomer in an integrated configuration in combination with a beam break;

fig. 27 is a use state diagram of a broken part of an emergency reinforcing monomer matched beam body in a split assembly structure.

In the figure: a 1- -shaped support; 1-1-a bottom steel plate; 1-2-vertical steel plates; 2-emergency reinforcing core blocks; 3-post-reinforcing steel bars; 3-1-main tendons; 3-2-connecting a clamping block; 3-3-counterweight sleeve; 4-extending the struts; 4-1-cylinder; 4-2-hemispherical end blocks; 5-a second plug-in part; 6-a bottom plate; 7-a straight strip opening; 7-1-a longitudinal straight strip opening; 8-hollowed-out steel box; 8-1-arc strip-shaped openings; 8-2-arc-shaped sheets; 8-3-socket; 8-4-front fold-line-shaped openings; 8-5-rear fold-line-shaped openings; 9-multiple position flaps; 9-1-a first vertical plate; 9-2-a first horizontal plate; 10-emergency reinforcing monomers; 11-spherical hinge seats; 12-a vertical flat plate; 13-forming the strip-shaped composition blocks; 15-a flexible control zone; 18-a sliding part; 19-a first plug-in part; 20-a crisscross block; 20-1 hollow walls; 20-2-hollowed jacks; 20-3-lumen; 40-original beam body; 50-beam body fracture parts; 50-1-steel bar broken ends; 50-2-fracture; 80-hollowed holes; 82-fitting walls; 91-multibit jack channel.

Detailed Description

Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.

The first embodiment is as follows: referring to fig. 1 to 27, in this embodiment, a basic structural form of an emergency reinforcing core block 2 is a self-hollowed block, while supporting other components is achieved, the self-hollowed-out structural form is further provided, the hollow inside and the multi-position communicating structural feature can ensure that concrete or other high-strength pouring adhesive liquid can enter quickly, steel-concrete rapid fusion is achieved, secondary fracture after reinforcement is avoided when oversized single solid material is locally formed, emergency reinforcing quality is improved, the emergency reinforcing core block comprises a hollowed-out steel box 8, the hollowed-out steel box 8 comprises a box body, specifically a rectangular box body is provided with a plurality of hollowed-out holes 80 matched with concrete pouring, the hollowed-out holes 80 are multiple in structural form, the hollow-out steel box 8 can be provided with arc-shaped strip-shaped openings 8-1 in the top of the hollowed-out steel box 8, the arc-shaped strip-shaped openings 8-1 are integrally connected with the hollowed-out steel box 8, and the outer wall of the arc-shaped steel box 8-2 is provided with an assembly wall 82.

In this embodiment, the top surface processing of fretwork steel casing 8 has two sockets 8-3, two sockets 8-3 set up respectively in the both sides of arcuation bar opening 8-1, the both sides wall of fretwork steel casing 8 is processed respectively and is had preceding broken line opening 8-4 and back broken line opening 8-5 that are linked together with socket 8-3, be provided with in the fretwork steel casing 8 with socket 8-3 one-to-one complex multiposition folded plate 9, multiposition folded plate 9 slope sets up between preceding broken line opening 8-4 and back broken line opening 8-5, multiposition folded plate 9's a side wall, socket 8-3, preceding broken line opening 8-4, back broken line opening 8-5 and arcuation piece 8-2 enclose the seam and are formed with multiposition grafting passageway 91, multiposition grafting passageway 91 is a plurality of vertical slits and a plurality of horizontal slit slope and connects the formation in turn, the width of vertical slit is less than the width of horizontal slit, the mode that multiposition folded plate 9 is a plurality of first vertical plate 9-1 and a plurality of first horizontal plate 9-2 connect the form alternately, multiposition folded plate 9-2 sets up for a plurality of vertical slit 3, the corresponding position is placed to the position in the arc 3 relatively more than the position that can be placed to the position in the arc position, the position is placed to the position relatively, the position is placed in the position is more than the position of the arc position is left correspondingly, and the position is more than the position is placed.

Further, a plurality of holes can be formed in the plate thickness direction of the multi-position folded plate 9, so that the rear-position steel bar 3 can be supported, and meanwhile, the concrete slurry flowing on the multi-position folded plate 9 can be ensured to flow into the hollowed-out steel box 8.

The second embodiment is as follows: the present embodiment is further limited in the first embodiment, and the emergency reinforcing core block 2 may be used alone or in plurality, and the bottom of the hollowed-out steel box 8 is provided with the sliding portion 18, so that the horizontal position of the hollowed-out steel box 8 in the -shaped support member 1 can be slightly moved during single use, and the position of the hollowed-out steel box 8 is ensured to be in the reinforced dense area, so that dense reinforcement can be realized.

Further, the two ends of the hollowed steel box 8 are respectively provided with a first inserting part 19, the first inserting parts 19 are respectively provided with slots and protrusions, namely the two ends of the hollowed steel box 8 are respectively provided with slots and protrusions, and the first inserting parts are used for splicing the emergency reinforcing core blocks 2 and the -shaped supporting piece 1.

And a third specific embodiment: the present embodiment is further limited by the first or second embodiment, the assembly wall 82 is provided with an extension pillar 4 in a matching manner, the extension pillar 4 is a solid or hollow cylinder, the elongated shape of the extension pillar can effectively extend the transverse depth of intensive reinforcement, the effect of local transverse depth reinforcement is achieved, the corresponding treatment of different forms and different damaged reinforcing steel bars is facilitated, and the extension pillar 4 with a plurality of rear reinforcing steel bars 3 can be directly configured for local reinforcement particularly suitable for the reinforcing steel bar residual forms of local middle recess and periphery protrusion formed by the absence of the transverse reinforcing steel bars in the beam body fracture part 50.

Further, the number of the extension struts 4 is one or more, the adaptation is performed according to the number of the residual positions of the reinforcing steel bars, which are partially concave in the middle and convex around, formed by the absence of the transverse reinforcing steel bars in the beam body fracture part 50, and the bottom of each extension strut 4 is fixedly connected or hinged with the assembly wall 82, and the fixed connection mode is not high in flexibility during reinforcement, but stable in strength and guaranteed, as shown in fig. 11. As shown in fig. 10 and 13, in the case of hinged connection, fine adjustment may be performed to make yaw or pitch, specifically, the assembly wall 82 is provided with a spherical hinge seat 11, which is a conventional spherical hinge member. The outer wall of the extension strut 4 is provided with a spherical blind hole which is hinged with a spherical hinge seat 11. The rear reinforcing steel bars 3 and the reinforcing steel bar broken ends 50-1 arranged on the extension support columns 4 are suitable for one-to-one or one-to-one multi-ring encircling reinforcement process.

Further, the two sides of the assembly wall 82 are respectively processed with a side recess, the side recess is a strip notch recessed downwards along the side of the assembly wall 82, so that the wall surface of the assembly wall 82 is a curved surface with a convex middle part and concave two sides, the spherical hinge seat 11 is located at the convex middle part, and the assembly wall 82 can enable the extension support column 4 to have a larger pitch debugging space under the cooperation of the side recess.

The specific embodiment IV is as follows: when the emergency reinforcing core block 2 is replaced by a square steel plate, the square steel plate is an emergency reinforcing core block 2 in another structural form, the square steel plate is vertically arranged, two ends of the square steel plate are respectively dismounting ends, at least one straight strip-shaped opening 7 is processed on the top surface of the emergency reinforcing core block 2 along the height direction of the emergency reinforcing core block, and a plurality of rear reinforcing steel bars 3 are arranged in the straight strip-shaped opening 7. The square steel plate is a solid plate or a hollow plate and is used for configuring the rear reinforcing steel bars 3 in a straight structure form, and is suitable for reinforcing one-to-one reinforcing steel bars, namely, each rear reinforcing steel bar 3 corresponds to one reinforcing steel bar broken head 50-1.

Fifth embodiment: the present embodiment is further limited by the fourth embodiment, and the present invention can be applied to a reinforcing process of a plurality of steel bar broken ends 50-1 with small or dense broken Liang Tizhong in a small space area, wherein the form of arranging the rear steel bars on the square steel plate is in various matching modes, specifically:

referring to fig. 14, a square steel plate is a vertical flat plate 12, the vertical flat plate 12 is a narrow steel plate, a plurality of rear reinforcing steel bars 3 are arranged on one side of the vertical flat plate 12, the plurality of rear reinforcing steel bars 3 are divided into two groups, the two groups are respectively arranged towards two ends of the square steel plate, the square steel plate can be used as an independent side part of the -shaped support piece 1, and can also be used as a vertical narrow inner core body, so that the vertical narrow inner core body is suitable for repairing damages of the longitudinal narrow position in the original beam body 40. The square steel plate in the configuration structure has a thickness not exceeding 1 cm.

In combination with fig. 15, another configuration structure is that a square steel plate is a vertical flat plate 12, the vertical flat plate 12 is a thick steel plate and is used for an inner core, two sides of the square steel plate are respectively provided with a plurality of rear steel bars 3, the rear steel bars 3 on each side of the square steel plate are divided into two groups, the two groups are respectively arranged towards two ends of the square steel plate, a four-position bidirectional double-sided multi-joint reinforcing mode is realized, the square steel plate is used as a vertical narrow inner core body, and is suitable for being used at a longitudinal narrow position in an original beam body 40 and repaired under the condition of having a plurality of dense steel bar broken ends 50-1. The square steel plate with the configuration structure has the thickness of 2-3 cm.

Referring to fig. 16, the third configuration structure is a square steel plate, and is a combined steel plate, and the third configuration structure includes a plurality of elongated component blocks 13, where the plurality of elongated component blocks 13 are sequentially disposed from top to bottom, two adjacent elongated component blocks 13 are detachably connected, two rear reinforcing bars 3 are disposed on two sides of each elongated component block 13, and two rear reinforcing bars 3 on each side are disposed toward two ends of the elongated component block 13, respectively, to form a reinforcing monomer in a four-leg structure.

Further, the top surface of each elongated component 13 is processed with a plurality of first concave portions or first convex portions, the bottom surface of each elongated component 13 is processed with a second convex portion matched with the plurality of first concave portions, or the bottom surface of each elongated component 13 is processed with a second concave portion matched with the plurality of first convex portions.

Specific embodiment six: as shown in fig. 1 to 27, the emergency reinforcing unit 10 in this embodiment includes a -shaped support member 1, an emergency reinforcing core block 2, and a plurality of rear reinforcing bars 3, wherein the -shaped support member 1 is disposed in a beam body fracture site 50, the emergency reinforcing core block 2 is disposed in the -shaped support member 1, the plurality of rear reinforcing bars 3 are detachably connected in the emergency reinforcing core block 2, the end of each rear reinforcing bar 3 is a connection end, and the connection end of each rear reinforcing bar 3 is connected with each reinforcing bar fracture 50-1 of the beam body fracture site 50 adjacent to the connection end; the -shaped support piece 1 is a three-way enclosing support member, and is respectively supported at two sides and the bottom of the original beam body 40.

As shown in fig. 7, 12 and 19, the -shaped support member 1 can be an integral flat frame, an integral square wide frame body, and the side part of the square wide frame body can be a solid plate or a hollowed-out plate. And correspondingly selecting according to different repairing positions and repairing conditions. When a plurality of integrated flat frames are combined and spliced for use, a spliced square wide frame body can be formed.

When emergent reinforcing core block 2 is the fretwork block, the bottom processing of its fretwork steel case 8 has sliding part 18, specifically is the slider at the bottom body coupling of fretwork steel case 8, the horizontal position of fine motion in font support piece 1 when the purpose can singly use, the bottom steel sheet 1-1 top surface processing in font support piece 1 has the spout with slider matched with, the spout is the outer narrow inner wide cell body of preference, ensure that fretwork steel case 8 position is in the intensive region of reinforcing bar to can realize intensive reinforcement.

Further, the two ends of the hollowed steel box 8 are respectively provided with a first inserting part 19, the first inserting part 19 is respectively provided with a slot and a bulge, namely, the two ends of the hollowed steel box 8 are respectively provided with a slot and a bulge, which are used for splicing a plurality of emergency reinforcing core blocks 2 and splicing the emergency reinforcing core blocks 2 and -shaped supporting pieces 1, the inner walls of two vertical steel plates 1-2 in the -shaped supporting pieces 1 are respectively provided with a vertical slot and a vertical bulge which are matched with the first inserting part 19, the vertical slot is matched with the bulge of the hollowed steel box 8, the stable inserting process between one side of the -shaped supporting piece 1 and the adjacent emergency reinforcing core block 2 is realized, the vertical protrusions are matched with the protrusions of the hollowed-out steel box 8, a stable plugging process between the other side of the -shaped support piece 1 and one adjacent emergency reinforcing core block 2 is achieved, the plugging positions correspond to each other and are consistent in size, one, two or three emergency reinforcing core blocks 2 can be configured in the -shaped support piece 1, when three emergency reinforcing core blocks 2 are configured in the -shaped support piece 1, the three emergency reinforcing core blocks 2 are sequentially plugged to form a large core block, and two ends of the large core block are plugged to inner walls of two sides of the -shaped support piece 1 respectively, so that the assembly process of the emergency reinforcing core blocks 2 is achieved.

The two structural forms of the rear-mounted steel bar 3 are combined with the structural forms shown in fig. 3, 4, 9 and 20, one structural form of the rear-mounted steel bar 3 is a two-end joint type steel bar, and the rear-mounted steel bar comprises a main steel bar body 3-1, a connecting clamping block 3-2 and a plurality of counterweight sleeves 3-3, the connecting clamping block 3-2 is fixedly sleeved on the main steel bar body 3-1, the connecting clamping block 3-2 is sleeved in the middle part or other positions of the main steel bar body 3-1, and the fixing mode between the connecting clamping block 3-2 and the main steel bar body 3-1 can be a fixed sleeve or sliding sleeve type relation. The distance between the connecting clamping block 3-2 and the two ends of the main rib body 3-1 can be the same or different. The rear reinforcing bar 3 in this form of construction is adapted for use in its removable relationship with other components.

As shown in fig. 10, 11, 12, 14, 15, 16, 17 and 18, another structural form of the rear reinforcing steel bar 3 is an end-joint reinforcing steel bar, and includes a main reinforcing steel bar body 3-1 and a plurality of counterweight sleeves 3-3, one end of the main reinforcing steel bar body 3-1 is a fixed end fixedly connected with the adjacent emergency reinforcing core block 2, and the other end of the main reinforcing steel bar body 3-1 is a joint end sleeved with the plurality of counterweight sleeves 3-3. The rear reinforcement 3 in this form of construction is adapted for use in its fixed connection with other components, in particular with an elongate post 4, a cross-shaped block 20 or other components.

The rear reinforcing steel bars 3 with two structural forms can be used simultaneously, or alternatively can be used, and the rear reinforcing steel bars can be selected according to specific reinforcing requirements.

Further, when the rear reinforcing steel bar 3 is a two-end joint type reinforcing steel bar, the penetrating mode is multiple, one is that the main reinforcing steel bar 3-1 is penetrated in the multi-position inserting channel 91 through the connecting clamping block 3-2, the second is that the main reinforcing steel bar 3-1 is penetrated in the straight strip-shaped opening 7 through the connecting clamping block 3-2, the third is that the main reinforcing steel bar 3-1 is penetrated in the multi-position inserting channel 91 and the straight strip-shaped opening 7 through the connecting clamping block 3-2, and each end of the main reinforcing steel bar 3-1 is sleeved with a plurality of counterweight sleeves 3-3. In the configuration process of the rear-mounted steel bar 3, the position of the rear-mounted steel bar 3 with relatively smaller diameter is the position of the main steel bar body 3-1, the main steel bar body 3-1 passes through the vertical gap, the position of the rear-mounted steel bar 3 with relatively larger diameter is the position of the connecting clamping block 3-2, and the rear-mounted steel bar stays at the corresponding horizontal gap through the connecting clamping block 3-2.

The main reinforcement body 3-1 is an existing reinforcement body, and can be specifically configured into different specifications according to the type of the reinforcement arranged in the middle beam of the structural design. The connecting fixture block 3-2 is used for matching the main rib body 3-1 to realize connection with the emergency reinforcing core block 2 or other connecting members to provide a connection position, the connection mode between the connecting fixture block 3-2 and the main rib body 3-1 can ensure that two ends of the main rib body 3-1 have enough exposed length, the connecting fixture block is convenient to be connected with a plurality of steel bar broken heads 50-1 at the beam body fracture position 50, and meanwhile, the connecting fixture block 3-2 can be connected with the straight strip-shaped opening 7 in a hinged manner, so that the pitch and left-right swing micro-gesture adjusting process of the connecting fixture block 3-2 at the straight strip-shaped opening 7 is realized, and a root debugging mode for multi-gesture adjustment is provided for the main rib body 3-1.

The connecting fixture block 3-2 can be fixedly sleeved or slidingly sleeved at the middle part of the main reinforcement body 3-1 or at one end of the main reinforcement body 3-1, the sleeved positions of the connecting fixture block 3-2 are adjusted according to the lengths of a plurality of steel bar broken heads 50-1 respectively arranged at two ends of a regular wound in the beam body fracture part 50, so that the lengths of the rear steel bars 3 in the emergency reinforcing monomer 10 facing the two ends of the wound are the same or different, and the lengths of the rear steel bars are regular and regular or irregular according to the damaged degree and the angle trend of the plurality of steel bar broken heads 50-1 in the beam body fracture part 50.

The counterweight sleeve 3-3 in this embodiment is sleeved at the end of the main reinforcement body 3-1, the number of the sleeves is 3-6, the purpose of setting the counterweight sleeve 3-3 is to adjust the weight of the end of the main reinforcement body 3-1, meanwhile, the quick and stable emergency connection process with the plurality of steel bar broken heads 50-1 at the beam body breaking position 50 can be realized, the connection process of the main reinforcement body 3-1 and the steel bar broken heads 50-1 in a one-to-one or one-to-many connection state can be realized in a state with equal diameter length or a small diameter length difference, meanwhile, the subsequent pouring and filling of concrete can be facilitated, the multi-position omnibearing space is provided, the main reinforcement body 3-1 can realize secondary emergency connection under the micro adjustment angle of the steel bar broken heads 50-1 under the cooperation of the connection clamping blocks 3-2 and the plurality of counterweight sleeves 3-3, the scattered and disordered position postures of the matched steel bar broken heads 50-1 under the bending state can also be reduced and the performance damage to the steel bar broken heads 50-1 during normal adjustment can be reduced.

When the emergency reinforcing core block 2 is a square steel plate, the length direction of the emergency reinforcing core block 2 is in the same direction as the length direction of the underlying steel plate 1-1, at least one straight strip-shaped opening 7 is processed in the height direction of the emergency reinforcing core block 2, and a plurality of the underlying steel bars 3 are arranged in one straight strip-shaped opening 7. A plurality of rear reinforcing bars 3 are respectively arranged at two ends of the extension strut 4. The emergency reinforcing core block 2 is fixedly connected or in sliding fit with the underlying steel plate 1-1.

The number of the counterweight sleeves 3-3 sleeved at the end parts of the rear reinforcing steel bars 3 is adjustable, the end parts of the rear reinforcing steel bars 3 can be connected with a plurality of counterweight sleeves 3-3 in a threaded sleeved mode, external threads are machined at the end parts of the rear reinforcing steel bars 3, internal threads are machined on the inner walls of the counterweight sleeves 3-3, and the structure and the connection relation which are not mentioned in the embodiment are the same as those of the first, second, third, fourth or fifth embodiment.

Seventh embodiment: the present embodiment is further limited to the sixth embodiment, and two sides of the top of the -shaped support member 1 are connected to the original beam 40 by a plurality of penetrating bolts. The plurality of penetrating bolts are the existing connecting bolts or other connecting bolts.

Eighth embodiment: as shown in fig. 1 to 27, the emergency density reinforcement method in the present embodiment is a process of performing assembly reinforcement by selecting an appropriate number of emergency reinforcement monomers 10 according to the width and length of the broken position of the beam body breaking portion 50 and the penetration degree of the broken steel bars; cleaning concrete fragments at the beam body fracture part 50, classifying the types and the number of the steel bar broken heads 50-1: the method comprises the steps of cutting irregular concrete at a beam body fracture part 50, cleaning concrete fragments generated by fracture and concrete fragments generated by cutting until the exposed length of each steel bar fracture head 50-1 of the beam body fracture part 50 is at least 15cm, classifying the steel bar fracture heads 50-1 into a group-type steel bar group, a straight-body steel bar group and a special-shaped single steel bar according to the bending degree and the aggregation density degree of the steel bars, wherein the group-type steel bar group is a steel bar group formed by two-thirds of steel bar fracture heads 50-1 in at least three exposed lengths which are mutually close, the straight-body steel bar group is a steel bar group formed by two-thirds of steel bar fracture heads 50-1 in at least three straight-body lengths, and the special-shaped single steel bar is a steel bar fracture head with different deflection angles from other adjacent steel bar fracture heads 50-1;

After the positions and the number of the group-shaped reinforcing steel bars, the straight reinforcing steel bars and the special-shaped monomer reinforcing steel bars are determined, cutting the reinforcing steel bar broken ends 50-1 with the included angle between the bending angle in the group-shaped reinforcing steel bars and the initial direction of the reinforcing steel bars being larger than 100 degrees, wherein the length of the reinforcing steel bars after cutting is ensured to be exposed by at least 10 centimeters;

measurement: measuring the final length and width of the beam body fracture site 50 after cleaning, sorting and cutting;

and (3) matching connection: the process of correspondingly matching the structural form and the number of the emergency reinforcing monomers 10 according to the length and the width of the beam body fracture part 50 and the number of the group type reinforcing steel bars, the straight body reinforcing steel bars and the special-shaped monomer reinforcing steel bars:

determining the number of the emergency reinforcing monomers 10 according to the length of the beam body fracture parts 50, and ensuring that the length of the beam body fracture parts 50 is smaller than the total width of the emergency reinforcing monomers 10 by 5-10 cm;

for a group of reinforcing steel bars, correspondingly matching the emergency reinforcing core blocks 2 with the spherical hinging seats 11 or the emergency reinforcing core blocks 2 with the flexible position control belts 15, when the diameters of the rear reinforcing steel bars 3 and the reinforcing steel bar broken heads 50-1 are different, the rear reinforcing steel bars 3 are connected with the reinforcing steel bar broken heads 50-1 by using the emergency reinforcing core blocks 2 with the flexible position control belts 15, and when the number of the reinforcing steel bar broken heads 50-1 is concentrated, correspondingly matching the emergency reinforcing core blocks 2 with the spherical hinging seats 11; ensuring that the total number of the group-shaped reinforcing steel bar groups, the straight reinforcing steel bar groups and the special-shaped monomer reinforcing steel bars is matched with the number of the rear reinforcing steel bars 3, correspondingly matching 1-3 rear reinforcing steel bars 3 with larger diameter length of the reinforcing steel bar broken heads 50-1 to wrap the reinforcing steel bars, and fixedly connecting each reinforcing steel bar broken head 50-1 with the adjacent rear reinforcing steel bars 3 matched with the reinforcing steel bar broken heads;

And (3) formwork supporting and pouring: and pouring the plurality of installed emergency reinforcing monomers 10 to realize the pouring process after the connection of the reinforcing steel bars.

The invention can cope with several typical damage forms, and the reinforcing and repairing principle for the damage of the top steel bar in the original beam body 40 is as follows according to the density degree, the number, the damage positions and the different damage degree conditions of the steel bar broken heads 50-1:

counting the number of the top reinforcing steel bars in the original beam body 40, counting the number of the reinforcing steel bar broken heads 50-1, and the number of the group reinforcing steel bar groups formed by the abutting of the three reinforcing steel bar broken heads 50-1, ensuring that each group reinforcing steel bar group is correspondingly provided with an emergency reinforcing core block 2 with an extension strut 4, after the number of the emergency reinforcing core blocks 2 with the extension strut 4 is determined, inserting the determined number of the emergency reinforcing core blocks 2 with the extension strut 4 into the position of a beam body fracture part 50 after assembling with a -shaped support piece 1, welding the rear reinforcing steel bars 3 on the extension strut 4 with one group reinforcing steel bar group, or connecting two or three rear reinforcing steel bars 3 on the extension strut 4 with one reinforcing steel bar broken head 50-1 in the group reinforcing steel bar group, realizing surrounding a wrapped clamping connection process, and pouring concrete or pouring a concrete adhesive with high strength and water resistance by using a formwork, and filling slurry into the emergency reinforcing core blocks 2, and simultaneously filling the whole emergency reinforcing monomer 10.

The reinforcing and repairing principle of the invention for the damage of the reinforcing steel bars at the two sides of the original beam body 40 is as follows:

according to the broken thickness configuration vertical flat plates 12 of the reinforcing steel bars on two sides in the original beam body 40, each side of the -shaped supporting piece 1 is correspondingly provided with at least one vertical flat plate 12, a plurality of rear reinforcing steel bars 3 on each side of the square steel plate are respectively connected with corresponding reinforcing steel bar broken heads 50-1 in a two-way mode along the length direction of the original beam body 40, the method is suitable for forming an initial reinforcing steel bar broken repair suitable condition in a narrow area on two sides only in the original beam body 40, and then a formwork is subjected to concrete pouring or pouring, the formwork is composed of epoxy resin and hardening agent, a high-strength and water-resistant concrete adhesive is filled with pouring slurry into the emergency reinforcing core block 2, and meanwhile the whole emergency reinforcing monomer 10 is filled.

The reinforcing and repairing principle for the damage of the reinforcing steel bars in the middle of the original beam body 40 is as follows:

counting the number of the broken steel bars 50-1 in the middle part of the original beam body 40, when three broken steel bars 50-1 are attached to form groups of steel bars, determining the number of the emergency reinforcing core blocks 2 with extension struts 4 correspondingly arranged, ensuring that each group of the steel bars is correspondingly provided with one emergency reinforcing core block 2 with extension struts 4, as shown in fig. 9, the loosely arranged broken steel bars 50-1 are correspondingly provided with square plate bodies, the square plate bodies are provided with a plurality of rear steel bars 3 in the form of straight bar structures, the determined number of the square plate bodies with the emergency reinforcing core blocks 2 with the extension struts 4 and/or the rear steel bars 3 in the form of a plurality of straight bar structures are assembled with -shaped supporting pieces 1, inserting the square plate bodies into the positions of the broken beam bodies after assembly, welding the rear steel bars 3 on the extension struts 4 with the groups of steel bars one by one, or connecting two or three rear steel bars 3 with one broken steel bars 50-1 in the groups of the groups, pouring the emergency reinforcing core blocks with high-strength epoxy resin around the broken steel bars 50-1, and filling the emergency reinforcing core blocks with high-strength concrete, and filling the emergency reinforcing slurry into the emergency concrete, and pouring the emergency reinforcing slurry, and filling the emergency reinforcing slurry into the emergency reinforcing slurry.

Referring to fig. 24 and 25, the reinforcement and repair principle of the present invention for the through damage in the original beam 40, especially for inconsistent damage degree of the bottom steel bar, is as follows:

counting the number of the broken reinforcement heads 50-1 in the original beam body 40 from top to bottom, counting the number of the broken reinforcement heads 50-1, determining the number of the emergency reinforcing core blocks 2 with extension struts 4 correspondingly when the three broken reinforcement heads 50-1 are abutted against the formed group reinforcement groups, ensuring that each group reinforcement group is correspondingly provided with one emergency reinforcing core block 2 with extension struts 4, arranging the square plate bodies with a plurality of post-positioned reinforcement 3 in a straight bar structure form correspondingly to the loosely arranged broken reinforcement heads 50-1, arranging the determined number of the emergency reinforcing core blocks 2 with the extension struts 4 at the bottom of the -shaped support piece 1, arranging the square plate bodies with a plurality of post-positioned reinforcement 3 in a loose and scattered reinforcement broken heads 50-1, assembling the emergency reinforcing core blocks 2 in a square plate structure form and the emergency reinforcing core blocks 2 with extension struts 4 with the support piece 1, inserting the emergency reinforcing core blocks 2 into the beam body fracture parts 50, fully filling the emergency reinforcing core blocks with the extension struts 4 or the emergency reinforcing core blocks with the epoxy resin, and pouring the emergency reinforcing core blocks into the emergency reinforcing core blocks with the three reinforcement core blocks 4 or the three-shaped reinforcement groups, and sealing the emergency reinforcing core blocks with the epoxy resin, and filling the epoxy resin into the emergency reinforcing core blocks to form 10, and sealing the emergency reinforcing core blocks with the epoxy resin, and filling the epoxy resin, and sealing the epoxy resin. In the principle, the number of the corresponding emergency reinforcing monomers 10 can be configured according to the length of the crack 50-2 of the original beam body 40 in the beam body fracture part 50.

Detailed description nine: the present embodiment is further limited to the eighth embodiment, and the emergency reinforcing unit 10 in the present embodiment is mainly divided into two types of structural forms according to the assembly type, and one emergency reinforcing unit 10 is in an integral structural form, and is used for reinforcing the beam body fracture part 50 in the condition of neat structural form and larger breakage position. The other is an emergency reinforcing single body 10 in a split assembly structure, the emergency reinforcing single body 10 is assembled and used according to the width and the length of the damaged position of the beam body fracture part 50 and the number of the matched penetration degree of the damage of each reinforcing steel bar, the main body structure in a two-type structure is similar, the main body structure comprises a -shaped supporting piece 1, an emergency reinforcing core block 2 and a plurality of rear reinforcing steel bars 3, the -shaped supporting piece 1, the emergency reinforcing core block 2 and the rear reinforcing steel bars 3 are matched with each other to connect and fill the damaged surface of the beam body fracture part 50 from inside to outside and wrap the bottom and two sides of the beam body, an emergency reinforcing process is realized, the beam body fracture part 50 can be subjected to one-time all-round connection reinforcing process, the -shaped supporting piece 1 is arranged in the beam body fracture part 50, the -shaped supporting piece 1 is internally provided with the emergency reinforcing core block 2, the end of each rear reinforcing steel bar 3 is detachably connected in the emergency reinforcing core block 2, and the connecting end of each rear reinforcing steel bar 3 is connected with each reinforcing steel bar 1 close to the beam body fracture part 50. When font support piece 1 is the reinforcement monomer that fixed connection was made as an organic whole, specifically include bottom steel sheet 1-1 and two vertical steel sheets 1-2, bottom steel sheet 1-1 and vertical steel sheet 1-2 are rectangular shaped plate body, the width of bottom steel sheet 1-1 equals with the width of vertical steel sheet 1-2, the both ends of bottom steel sheet 1-1 are respectively an organic whole connected with a vertical steel sheet 1-2, bottom steel sheet 1-1 and two vertical steel sheets 1-2 enclose and form font supporting structure body, be used for enclosing in the bottom and the both sides of roof beam body fracture position 50, bottom steel sheet 1-1 is in the bottom surface of roof beam body fracture position 50, play bottom support reinforcement effect, every vertical steel sheet 1-2 is leaned on the lateral part of roof beam body fracture position 50 for play lateral part support reinforcement effect, an organic whole is connected on the top surface of bottom steel sheet 1-1, sliding fit or detachable are connected with emergent reinforcement core piece 2, several typical structural forms are:

First kind: as shown in fig. 11, the emergency reinforcing core block 2 is provided with an extension pillar 4 in a matched manner, the extension pillar 4 is a long cylindrical inner core structure body, the emergency reinforcing core block comprises a cylinder 4-1 and two hemispherical end blocks 4-2, two ends of the cylinder 4-1 are respectively integrally connected with one hemispherical end block 4-2, a plurality of rear reinforcing steel bars 3 are integrally connected to the hemispherical outer wall of each hemispherical end block 4-2, the length direction of the cylinder 4-1 is in the same direction as the cracking length direction of the beam body cracking part 50, the length of the cylinder 4-1 is matched with the cracking length of the beam body cracking part 50, the length of the cylinder 4-1 is greater than the width of a vertical steel plate 1-2, the long cylindrical inner core structure body formed by the cylinder 4-1 and the two hemispherical end blocks 4-2 is matched with the -shaped supporting piece 1 to form a narrow-supporting two-end extending reinforcing structure, the three-way stable supporting effect formed in the reinforcing steel bar 3 in the reinforcing process can be realized, the effect of further extending the length of the rear reinforcing steel bars 3 can be realized, the damage of concrete is reduced, and the reinforcing effect of the two ends of the reinforcing steel bars 40 is improved.

Further, the hemispherical outer wall of each hemispherical end block 4-2 is integrally connected with a plurality of rear reinforcing steel bars 3, namely, a plurality of rear reinforcing steel bars 3 are integrally branched from one hemispherical end block 4-2 to form a one-point multi-branch structure, so that the connection strength is ensured, and the connection with a plurality of reinforcing steel bar broken ends 50-1 at the beam body breaking parts 50 can be facilitated.

Further, the outer diameter of the cylinder 4-1 is smaller than the distance between the two vertical steel plates 1-2, so that a filling channel is formed between the inner wall of the vertical steel plate 1-2 and the outer circumferential wall of the cylinder 4-1, and a filling space is provided for filling and positioning the emergency reinforcing core blocks 2 and -shaped supporting pieces 1 in the emergency reinforcing single bodies 10 of the follow-up concrete and for packing and filling the emergency reinforcing core blocks 2.

Second kind: as shown in connection with fig. 9, the emergency reinforcing core block 2 is a rectangular block, in particular a rectangular or square block. The thickness of the emergency reinforcing core block 2 is equal to the width of the vertical steel plates 1-2, the length of the emergency reinforcing core block 2 is equal to the distance between the two vertical steel plates 1-2, a transverse and longitudinal sealing enclosing structure form is formed, and a -shaped supporting structure form formed by I-shaped matching supporting is formed.

Further, one connection mode of the rear reinforcing steel bars 3 and the emergency reinforcing core block 2 is that a plurality of rear reinforcing steel bars 3 are integrally connected to the emergency reinforcing core block 2, so that the integral structural strength of the single body is ensured to be large, the integral strength after reinforcement can be ensured, and the standard requirement is met.

Detailed description ten: in this embodiment, when the emergency reinforcing core 2 is a square steel plate, the length direction of the emergency reinforcing core 2 is the same as the length direction of the underlying steel plate 1-1, at least one straight strip-shaped opening 7 is processed in the height direction of the emergency reinforcing core 2, when the number of the straight strip-shaped openings 7 is one, a plurality of the post-reinforcing steel bars 3 are arranged in the straight strip-shaped opening 7, when the number of the straight strip-shaped openings 7 is a plurality of the straight strip-shaped openings 7, a plurality of the straight strip-shaped openings 7 are vertically arranged in parallel, a plurality of the post-reinforcing steel bars 3 are arranged in each straight strip-shaped opening 7, and the number of the post-reinforcing steel bars 3 arranged in each straight strip-shaped opening 7 is correspondingly arranged according to the structural reinforcing requirement and the structural judgment of the original beam body 40.

Eleventh embodiment: in this embodiment, when the emergency reinforcing core 2 is a rectangular block, the extension struts 4 are disposed in cooperation with the plurality of rear reinforcing bars 3, the extension struts 4 are cylindrical extension struts, the bottoms of the extension struts 4 are hinged with the straight strip-shaped openings 7, and the plurality of rear reinforcing bars 3 are disposed at two ends of the extension struts 4, wherein the structural form of the extension struts 4 is consistent with that of the long column-shaped inner core structure, the connection relationship between the extension struts 4 and the emergency reinforcing core 2 is that one extension strut 4 is disposed in each straight strip-shaped opening 7 of the emergency reinforcing core 2, the bottoms of the extension struts 4 are connected with the bottoms of the straight strip-shaped openings 7 through one spherical hinge seat 11, so that the emergency reinforcing monomers 10 can be adapted to the beam fracture site 50 after the beam fracture site 50 is realized, the positions of the plurality of fracture reinforcing bars 50-1 tend to be adjusted, the number of the extension struts 4 can be adjusted to be better than the original multi-directional support sites 50 of the multi-directional support beam fracture site 50, and the strength of the multi-directional support sites 4 can be adjusted to ensure that the strength of the original reinforcement site 50 can be better than the original strength can be ensured by adjusting the multi-directional support sites of the multi-directional support sites 4.

Twelve specific embodiments: as shown in fig. 5, 6 and 9, the straight strip-shaped opening 7 in the present embodiment is a longitudinal straight strip-shaped opening 7-1, and when the emergency reinforcing core block 2 is a rectangular block, the straight strip-shaped openings in different forms are adapted according to different adaptation requirements. The longitudinal straight strip-shaped openings 7-1 are formed by processing along the height direction of the emergency reinforcing core block 2, one or more longitudinal straight strip-shaped openings 7-1 are processed, the longitudinal straight strip-shaped openings 7-1 are used in parallel when in a plurality of longitudinal straight strip-shaped openings, the opening position of each straight strip-shaped opening 7 is in a structure form of an opening at the top of the straight strip-shaped opening, and two-side clamping positions are provided for the rear reinforcing steel bars 3.

When the straight strip-shaped notch 7 is replaced by a structure form that the multi-position inserting channel 91 and the assembling wall 82 are matched, the assembling wall 82 is internally matched and connected with the extension column 4, the multi-position inserting channel 91 is matched and provided with a plurality of rear reinforcing steel bars 3, and the multi-position inserting channel 91 and the assembling wall 82 are matched to enable the rear reinforcing steel bars 3 to form a plurality of reinforcing steel bar connecting parts with different angles at the same fixed position.

Thirteen specific embodiments: the present embodiment is further defined in the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh or twelfth embodiment, and the connection relationship between the emergency reinforcing core block 2 and the underlying steel plate 1-1 is mainly three:

First kind: the emergency reinforcing core block 2 is fixedly connected with the underlying steel plate 1-1, and an extension strut 4 is arranged in each straight strip-shaped opening 7 of the emergency reinforcing core block 2. Second kind: the emergency reinforcing core block 2 is in sliding fit with the underlying steel plate 1-1. Third kind: the emergency reinforcing core block 2 is in plug-in fit with the underlying steel plate 1-1.

Fourteen specific embodiments: the present embodiment is further defined by one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve or thirteen specific embodiments, and referring to fig. 21, the weight sleeve 3-3 is a fixed angle connecting sleeve, specifically, a plurality of equal diameter weight sleeves 3-3 are used in a matched manner, and referring to fig. 22 to 23, another structural form of the weight sleeve 3-3 is an unequal diameter weight sleeve 3-3, the arrangement mode of the unequal diameter weight sleeves 3-3 is that the diameters of the two ends are sequentially increased from the middle to the two ends, and a basic position control process is implemented before the unequal diameter weight sleeves 3-3 through the flexible position control belt 15, so that a stable alignment connection process is implemented between unequal diameter steel bar broken ends 50-1 with smaller difference.

The flexible position control belt 15 is an elastic metal strip, a plurality of sliding blocks are arranged towards the plurality of unequal diameter weight sleeves 3-3, arc-shaped strip-shaped sliding grooves are machined on each unequal diameter weight sleeve 3-3 and are in one-to-one corresponding insertion fit with the sliding blocks, each sliding block slides back and forth along the corresponding arc-shaped strip-shaped sliding groove, the flexible position control belt 15 is adapted to the staggered connection of the plurality of unequal diameter weight sleeves 3-3, and accordingly the butt joint process between the steel bar broken heads 50-1 and the main steel bar body 3-1 with different diameters is adapted.

Fifteen embodiments: the embodiment is further defined in the first, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth or fourteenth embodiment, the other assembly structure of the emergency reinforcing unit 10 in the embodiment is a multidirectional hollow reinforcing unit, the form is -shaped supporting piece 1, the emergency reinforcing core 2 and a plurality of rear reinforcing steel bars 3, -shaped supporting pieces 1, the emergency reinforcing core 2 and a plurality of rear reinforcing steel bars 3 are mutually matched and used for connecting and filling the damaged surface of the beam body fracture part 50 from inside to outside and wrapping the bottom and two sides of the beam body, an emergency reinforcing process is realized, the beam body fracture part 50 can be subjected to one-time omnibearing linking reinforcing process, wherein the -shaped supporting piece 1 is arranged in the beam body fracture part 50, the emergency reinforcing core 2 is arranged in the -shaped supporting piece 1, the end of each rear reinforcing steel bar 3 is a connecting end, and the connecting end of each rear reinforcing steel bar 3 is connected with each reinforcing steel bar 1 of the beam body fracture part 50 close to the connecting end of each rear reinforcing steel bar 3.

The other structural form of the two side wall emergency reinforcing core blocks 2 in the -shaped supporting piece 1 is a cross-shaped block 20, the cross-shaped block 20 is a self multi-position hollow block, a plurality of pouring entering positions are provided for subsequent concrete pouring, meanwhile, the adaptive -shaped supporting piece 1 is also in a two-side hollow structural form, the hollow positions are not only used for concrete pouring filling, but also used for providing a plurality of flexible emergency adaptive connecting positions for penetrating the rear reinforcing steel bars 3, and corresponding adjustment is carried out according to different reinforcing requirements and bending trend of each reinforcing steel bar broken head 50-1.

Further, the cross-shaped block 20 is specifically hollowed out, each outer wall of the cross-shaped block 20 is a hollowed-out wall 20-1, a plurality of hollowed-out jacks 20-2 are machined in the hollowed-out wall 20-1, an inner cavity 20-3 is machined in the cross-shaped block 20, the inner cavity 20-3 is a cross-shaped inner cavity, and the cross-shaped inner cavities are respectively communicated with the hollowed-out jacks 20-2.

Sixteen specific embodiments: referring to fig. 13, the emergency reinforcing assembly in this embodiment includes a base plate 6 and a plurality of emergency reinforcing units 10, wherein a second plugging portion 5 is disposed at the bottom of the support 1 in each emergency reinforcing unit 10, and the plurality of second plugging portions 5 are connected with each other by the base plate 6.

Further, the second plugging portion 5 is a slot, specifically a slot body with a narrow outer portion and a wide inner portion, and specifically an inverted T-shaped slot or a dovetail slot with a narrow notch and a wide slot bottom.

In this embodiment, the bottom plate 6 is a steel plate, and the steel plate is specifically a plugboard, and is used for connecting the emergency reinforcing monomers 10 in a plugging manner to form an assembled reinforcing structure.

In this embodiment, each emergency reinforcing unit 10 is an emergency rapid adapting reinforcing structure for a broken beam body, and the emergency reinforcing units 10 are mainly divided into two types of structural forms, and one type is an integral reinforcing unit for reinforcing the beam body at the broken position 50 in a neat structural form and with a larger broken position. The other is a reinforcing monomer in a split assembly structure, the reinforcing monomer is assembled and used according to the width and the length of the damaged position of the beam body fracture part 50 and the number of the matched penetration degree of the damage of each reinforcing steel bar, the main body structure in a two-type structure is similar, the main body structure comprises a -shaped supporting piece 1, an emergency reinforcing core block 2 and a plurality of rear reinforcing steel bars 3, the -shaped supporting piece 1, the emergency reinforcing core block 2 and the rear reinforcing steel bars 3 are matched with each other to connect and fill the damaged surface of the beam body fracture part 50 from inside to outside and wrap the bottom and two sides of the beam body, the emergency reinforcing process is realized, the beam body fracture part 50 can be subjected to one-time omnibearing connection reinforcing process, the -shaped supporting piece 1 is arranged in the beam body fracture part 50, the -shaped supporting piece 1 is internally provided with the emergency reinforcing core block 2, the end part of each rear reinforcing steel bar 3 is a connecting end, and the connecting end of each rear reinforcing steel bar 3 is connected with each reinforcing steel bar 50-1 close to the beam body fracture part 50.

Other structures and connection relationships not mentioned are the same as those of the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth or fifteenth embodiments.

The emergency density reinforcement method is realized by emergency reinforcement monomers, and is a quantitative configuration process for configuring the number of the emergency reinforcement monomers, the number of the rear-mounted reinforcing bars 3 and the connection positions according to the width and the fracture depth dimension between two reinforcing bar broken heads 50-1 in the beam body fracture part 50. The invention is suitable for the repairing and reinforcing process of the original beam body 40 with 7-50 steel bars.

The emergency density reinforcement method is a process of assembling and reinforcing by correspondingly selecting an adaptive number of emergency reinforcing monomers 10 according to the width and length of the broken position of the beam body breaking position 50 and the broken degree of each reinforcing steel bar; the emergency density reinforcement method comprises the following steps:

pretreatment and cleaning: cleaning concrete fragments at the beam body fracture part 50, and cleaning the concrete fragments generated by fracture and concrete fragments generated by cutting irregular concrete until the exposed length of each reinforcement broken head 50-1 in the cleaning beam body fracture part 50 is at least 15cm, so that the beam body fracture part 50 forms a regular wound;

Counting and classifying: counting the number of the steel bar broken heads 50-1, classifying the types of the steel bar broken heads 50-1, analyzing the fracture reasons of an original beam body, wherein the type process of the classified steel bar broken heads 50-1 is a process of dividing a plurality of rear steel bars 3 into a group-type steel bar group, a straight-type steel bar group and a special-shaped single steel bar according to the bending degree and the aggregation density degree of the steel bars, the group-type steel bar group is a steel bar group formed by two-thirds of the steel bar broken heads 50-1 in at least three exposed lengths which are mutually close, the group-type steel bar group is correspondingly connected with an emergency reinforcing core block 2 with an extension strut 4 or an emergency reinforcing core block 2 with a counterweight sleeve 3-3, the straight-type steel bar group is a steel bar group formed by two-thirds of the steel bar broken heads 50-1 with at least three straight-type lengths, and the special-shaped single steel bar is a steel bar broken head or a single straight bar with different deflection angles from other adjacent steel bar broken heads 50-1;

for the group of reinforcing steel bars, correspondingly matching the emergency reinforcing core blocks 2 with the extension struts 4 and/or the emergency reinforcing core blocks 2 with the counterweight sleeves 3-3, ensuring that the total number of the group of reinforcing steel bars, the straight reinforcing steel bars and the special-shaped single reinforcing steel bars is matched with the number of the rear reinforcing steel bars 3, correspondingly matching 1-3 rear reinforcing steel bars 3 for surrounding and wrapping the reinforcing steel bar broken ends 50-1 with larger diameter length, and fixedly connecting each reinforcing steel bar broken end 50-1 with the adjacent rear reinforcing steel bars 3 matched with the reinforcing steel bar broken ends;

The emergency reinforcing monomer 10 in the embodiment is a steel prefabricated part, the reinforced concrete combined reinforcing beam body formed by reinforcing the emergency sparse and dense reinforcement method through the emergency reinforcing monomers 10 is a reinforced concrete structural part, the emergency sparse and dense reinforcement method is suitable for on-site direct reinforcement, the assembly effect is quick and reliable, reinforcing resources are saved, and the working procedure is simplified.

The invention also carries out a quantitative comparison verification process on the reinforcement strength, and the concrete process is as follows:

in the verification process, a comparison verification mode is selected to verify the quantitative reinforcement effect of the invention, wherein the state before the single original beam body 40 is not damaged is taken as a research object, and the concrete of the original beam body 40 is as follows:

model C30 of concrete of the original beam body 40, and standard value of compressive strength of concrete cube in the original beam body 40 is f _cu,k The concrete axle center compressive strength design value of the original beam body 40 is f _c The design value of the tensile strength of the concrete of the original beam body 40 is f _t The bearing capacity of the concrete under pressure is f _ck 。f _ck The specific value of (2) is determined by the maximum pressure that can be sustained per unit area. The standard value of the tensile strength of the concrete axle center is f _tk The calculation results are that:

f _cu,k ＝30.00MPa，f _c ＝14.33MPa,f _t ＝1.43MPa,f _ck ＝20.06MPa,f _tk ＝2.01MPa；

when the steel bars in the original beam body 40 are in a tension state, tension steel bars are formed, and the steel bars pass through f _y And f _yc Expressing the tension and compression conditions of a tension bar, wherein f _y Representing the design value of the tensile strength of the steel bar; f (f) _yc Representing the yield strength of the steel bar; f (f) _y =360.00 MPa; when the steel bars in the original beam body 40 are in a pressed state, the steel bars are pressed: f (f) _yc ＝360.00MPa；

Section information of the original beam body 40: the height of the rectangular section is h=600.0 mm, and the width of the rectangular section is b=300.0 mm; distance a from resultant force point of tension steel bar to section edge _s ' =42.5 mm; distance a from resultant force point of pressed reinforcing steel bar to section edge _s ' =42.5 mm; calculating the span: l (L) ₀ ＝6000.00mm；

The calculation result of the original beam body 40 is: the bending moment design value is M, m=1000.00 kn×m; the design value of axial force pull is N, n=500.00 KN; the height of the relative limit compression zone is epsilon _cu The calculation process is as follows:

ε _cu ＝0.0033-(f _cuk -50)×10 ^-5 ＝0.0033-(30.0-50)×10-5>0.0033; taking epsilon _cu When=0.0033, β ₁ Refers to the ratio of the height of a concrete compression area to the height of a concrete compression area when the section of a concrete beam is subjected to bending moment. The numerical value is usually between 0.85 and 0.95, and the specific value needs to be adjusted according to factors such as the strength of concrete; es is the elastic modulus of the concrete;

the total section reinforcement ratio of the tension reinforcement is/>

Aspect ratio:minimum rate of reinforcement of pressed steel bar ρ' _min ；ρ' _min ＝0.002；

The cross-sectional area is a, and the calculation formula of the cross-sectional area a is a=bh=300.0×600.0= 180000.00mm ² ；

Bearing capacity vibration-resistant adjustment coefficient gamma _RE ＝0.85；

The bending moment design value is adjusted to be M=Mgamma _RE ×10 ⁶ ＝1000.00×0.85×10 ⁶ ＝850000000.00N*mm；

The design value of the axial force is adjusted to be N=Ngamma _RE ×10 ³ ＝500.00×0.85×10 ³ ＝425000.00N；

Eccentricity of e ₀ ：Eccentricity correction value e ^‘ ；

Judging the magnitude bias value as e:e<0 is calculated by large eccentric tension: design bending moment M _s N (-e) = 425000.00 × 1742.50 =740.56 kn×m maximum bending moment that concrete can withstand: m is M _cmax ＝α ₁ f _c ξ _b h ₀ b(h ₀ -0.5ξ _b h ₀ )＝1.00×14.33×0.52×557.5×300.0×(557.5-0.5×0.52×557.5)＝512.69kN*m；M _s >M _cmax The method comprises the steps of carrying out a first treatment on the surface of the The reinforcement area is A' _s The calculation formula of the reinforcement area is The cross-sectional areas of the longitudinal non-prestressed reinforcement of the As tension zone and the compression zone are calculated by the following formula:

take xi=ζ _b =0.52, the tensile bar full section reinforcement ratio; whether or not to consider double-row reinforcement

Double rows of ribs are adopted for re-calculation: judging the size bias:

bias valuee<0 is calculated as large eccentric tension. Bending moment is designed: m is M _s The maximum bending moment that can be borne by concrete of =n (-e) = 425000.00 × 1767.50 =751.19kn×m is M _cmax ，M _cmax The calculation formula of (2) is as follows:

M _cmax ＝α ₁ f _c ξ _b h ₀ b(h ₀ -0.5ξ _b h ₀ )＝1.00×14.33×0.52×532.5×300.0×(532.5-0.5×0.52×532.5)＝467.74kN*mM _s >M _cmax 。

reinforcement area:

take xi=ζ _b =0.52; whether double-row reinforcement is considered or not is the total section reinforcement ratio of the tension reinforcement: />

And (3) taking the minimum reinforcement ratio of the tension steel bars: ρ _min ＝0.0020；

Minimum reinforcement area of the tension steel bar: a is that _smin ＝ρA＝0.0020×180000.0＝360.00mm ² ；

Taking the maximum reinforcement ratio of the tension steel bars: ρ _max ＝0.0400；

Reinforcement ratio of pressed reinforcement:

minimum reinforcement ratio of pressed steel bars:

minimum reinforcement area of pressed steel bar: a's' _smin ＝ρ'A＝0.0020×180000.0＝360.00mm ² ；

A _s >A _smin The method comprises the steps of carrying out a first treatment on the surface of the Tensile reinforcement bar arrangement rate:

A' _s >A' _smin the method comprises the steps of carrying out a first treatment on the surface of the Reinforcement ratio of pressed reinforcement:

after the original beam body 40 is wounded and the breaking part 50 of the reinforced beam body appears, the related data of the reinforced concrete combined reinforced beam body formed by the reinforcement of a plurality of emergency reinforced monomers 10 by the emergency density reinforcement method of the invention are as follows:

section parameters of steel-concrete combined reinforced beam body: section information: the height of the rectangular section is h=600.0 mm, and the width of the rectangular section is b=300.0 mm; section steel flange thickness t _f 10.0mm, section steel flange width b _f 200.0mm, section steel web thickness t _w 10.0mm, profile steel web height h _w =300.0mm; distance a from resultant force point of upper longitudinal rib to section edge _s ' =42.5 mm; distance a from resultant force point of lower longitudinal rib to section edge _s ＝42.5mm；

Material information of steel-concrete combined reinforced beam body: the concrete model is C30, and the standard value of the compressive strength of the concrete cube in the steel-concrete combined reinforced beam body is f _cu,k The concrete axle center compressive strength design value of the steel-concrete combined reinforced beam body is f _c The design value of the tensile strength of the steel-concrete combined reinforced beam body concrete is f _t The bearing capacity of the steel-concrete combined reinforced beam body under pressure is f _ck ；f _y Representing the design value of the tensile strength of the steel bar; f (f) _yc Representing the yield strength of the steel bar; f (f) _a Carrying a pressure characteristic value for the modified profile steel;

f _cu,k ＝30.00MPa；f _c ＝14.33Mpa,f _t ＝1.43MPa,f _ck ＝20.06MPa,f _tk ＝2.01MPa；

longitudinal ribs: f (f) _y =360.00 MPa; section steel: f (f) _a ＝215.00MPa；

The calculation result of the steel-concrete combined reinforced beam body formed by the invention is as follows: alpha ₁ ＝1.00,β ₁ ＝0.80；ɑ ₁ The steel bar stress coefficient in the calculation of the bearing capacity of the section of the reinforced concrete composite reinforcement Liang Tizheng is represented; β1 is the calculated cross-sectional shear ratio;

steel-concrete composite reinforced beam relative limit compression zone height:

ε _b ＝0.0033-(f _cuk -50)×10 ^-5 ＝0.0033-(30.0-50)×10 ^-5 ＝0.54

bending moment design value: m=m×10 ⁶ ＝900.00×10 ⁶ ＝900000000.00N*mm；

Section steel flange center of gravity is apart from near edge moment of cross section:

d _a ＝0.5(h-h _w -t _f )＝0.5×(600.00-300.00-10.00)＝145.00mm；

minimum area of longitudinal tension steel bar: a is that _s ＝A _smin ＝540.00mm ² ；

Section steel tension flange and longitudinal tension steel bar joint force point to section near edge moment apart:

cross-sectional effective height: h is a ₀ ＝486.91mm；

Taking the height xi=xi of the section relative to the compressed area _b The maximum bending moment borne by the concrete obtained by the steel-concrete composite member is M _cmax The calculation formula is as follows:

M _cmax ＝α ₁ f _c ξ _b h ₀ h ₀ (1-0.5ξ _b )

＝1.00×14.33×300.00×0.54×486.91×486.91(1-0.5×0.54)

＝402213248.00N*mm

the web flange bears bending moment M _af ：M _af The calculation process of (1) is as follows:

M _af ＝f _a A _f (h ₀ -d _a )＝215.00×2000.00×(486.91-145.00)＝147022256.00N*mm；

the maximum bending moment borne by the web plate is M _awmax : maximum bending moment M borne by web _awmax The calculated results of (2) are:

M _awmax ＝69996992.00N*mm；

the maximum bending moment born by the section steel and the concrete is M _max ，M _max The calculation process of (1) is as follows:

M _max ＝M _awmax +M _af +M _cmax ＝619232512.00N*mm；M>M _max to be provided with pressed steel bars, the area of the pressed steel bars

Cross section relative to nip height: ζ=0.54;

area A of tension bar _s ＝5248.54mm ² ；

Recalculating the moment distance d from the joint force point of the section steel tension flange and the longitudinal tension steel bar to the near edge of the section _st : the calculation process is as follows:

recalculating the effective height of the section to be h ₀ ：h ₀ ＝538.50mm；

Taking the height xi=xi b of the section relative to the compressed area, wherein the maximum bending moment borne by the concrete obtained by the steel-concrete combined component is M _cmax The calculation formula is as follows:

M _cmax ＝α ₁ f _c ξ _b h ₀ h ₀ (1-0.5ξ _b )

＝1.00×14.33×300.00×0.54×538.50×538.50(1-0.5×0.54)＝491952288.00N*mm；

the bending moment born by the web flange is M _af The calculation formula is as follows:

M _af ＝f _a A _f (h ₀ -d _a )＝215.00×2000.00×(538.50-145.00)＝169204080.00N*mm；

the maximum bending moment borne by the web plate is M _awmax ＝105244416.00N*mm；

Maximum bending moment M borne by section steel and concrete _max The calculation process of (1) is as follows:

M _max ＝M _awmax +M _af +M _cmax ＝766400768.00N*mm；

M>M _max the pressed steel bar is required to be configured, and the area of the pressed steel bar is A _sc ：

The height of the cross section relative to the compressed area is ζ, ζ=0.54; the area of the tension steel bar is A _s ，A _s ＝4991.59mm ² ；A _s >A _smin 。

According to the comparison, when the original beam body 40 is suddenly damaged and needs to be subjected to rapid emergency response, the quantitative local emergency matching reinforcement process is stable and reliable in feasibility, the reinforced structure after emergency assembly reinforcement is excellent and reliable in performance, the coping repair function of the building structure to sudden damage is improved, and an effective configuration mode of rapid response is provided for rapid response under the emergency sudden demand of the building.

Claims

1. An emergency reinforcing pellet for beam breakage, characterized by: the steel box comprises a hollowed-out steel box (8), wherein the hollowed-out steel box (8) comprises a box body, a plurality of hollowed-out holes (80) matched with concrete pouring are formed in the box body, an arc-shaped strip-shaped opening (8-1) is formed in the top of the hollowed-out steel box (8), a concave arc-shaped piece (8-2) is integrally connected to the arc-shaped strip-shaped opening (8-1), and the outer wall of the arc-shaped piece (8-2) is an assembly wall (82);

the top surface of the hollowed-out steel box (8) is provided with two jacks (8-3), the two jacks (8-3) are respectively arranged at two sides of the arc-shaped strip-shaped notch (8-1), two side walls of the hollowed-out steel box (8) are respectively provided with a front fold-shaped notch (8-4) and a rear fold-shaped notch (8-5) which are communicated with the jacks (8-3), the hollowed-out steel box (8) is internally provided with a multi-position folded plate (9) which is in one-to-one correspondence with the jacks (8-3), the multi-position folded plate (9) is obliquely arranged between the front fold-shaped notch (8-4) and the rear fold-shaped notch (8-5), and a multi-position inserting channel (91) is formed among one side wall of the multi-position folded plate (9), the jacks (8-3), the front fold-shaped notch (8-4), the rear fold-shaped notch (8-5) and the inner wall of the arc-shaped piece (8-2); the multi-position folded plate (9) is formed by alternately connecting a plurality of first vertical plates (9-1) and a plurality of first horizontal plates (9-2), and the shape of the inner wall of the arc-shaped sheet (8-2) is matched with the shape of the multi-position folded plate (9).

2. The emergency reinforcing pellet of claim 1, wherein: the bottom of fretwork steel casing (8) is processed and is had sliding part (18), and the both ends of fretwork steel casing (8) are processed respectively and are had first grafting portion (19).

3. Emergency reinforcing pellet according to claim 1 or 2, characterized in that: the assembly wall (82) is provided with an extension strut (4) in a matched mode, and the bottom of the extension strut (4) is fixedly connected or hinged with the assembly wall (82).

4. The emergency reinforcing pellet of claim 1, wherein: when emergent reinforcing core piece is replaced for square steel sheet, square steel sheet is vertical to be set up, and square steel sheet's both ends are the dismantlement end respectively, and emergent reinforcing core piece's top surface has at least one straight strip shape opening (7) along its direction of height processing, is provided with a plurality of rearmounted reinforcing bars (3) in one straight strip shape opening (7).

5. An emergency reinforcing unit for beam breakage, consisting of the emergency reinforcing pellet according to claim 1, 2, 3 or 4, characterized in that: the emergency reinforcing core block comprises -shaped supporting pieces (1), emergency reinforcing core blocks (2) and a plurality of rear reinforcing steel bars (3), wherein the -shaped supporting pieces (1) are arranged in beam body fracture parts (50), the emergency reinforcing core blocks (2) are arranged in the -shaped supporting pieces (1), the rear reinforcing steel bars (3) are detachably connected in the emergency reinforcing core blocks (2), the end parts of the rear reinforcing steel bars (3) are connecting ends, and the connecting ends of the rear reinforcing steel bars (3) are connected with each reinforcing steel bar broken end (50-1) of the beam body fracture parts (50) close to the connecting ends;

-shaped supporting piece (1) comprises a bottom steel plate (1-1) and two vertical steel plates (1-2), wherein the bottom steel plate (1-1) and the two vertical steel plates (1-2) are strip-shaped plate bodies, and two ends of the bottom steel plate (1-1) are respectively and integrally connected with one vertical steel plate (1-2);

each rear-mounted steel bar (3) comprises a main steel bar body (3-1), a connecting clamping block (3-2) and a plurality of counterweight sleeves (3-3), the connecting clamping block (3-2) is fixedly sleeved on the main steel bar body (3-1), the main steel bar body (3-1) is arranged in the multi-position inserting channel (91) and/or the straight strip-shaped opening (7) in a penetrating mode through the connecting clamping block (3-2), and each end of the main steel bar body (3-1) is sleeved with the plurality of counterweight sleeves (3-3).

6. The emergency reinforcing monomer of claim 5, wherein: when emergent reinforcing core block (2) is square steel sheet, emergent reinforcing core block (2) length direction and the length direction syntropy of underlying steel sheet (1-1), emergent reinforcing core block (2) have at least one straight strip shape opening (7) along its direction of height processing, are provided with a plurality of in the straight strip shape opening (7) rearmounted reinforcing bar (3).

7. The emergency reinforcing monomer of claim 6, wherein: the emergency reinforcing core block (2) is provided with extension struts (4) in a matched mode, and two ends of each extension strut (4) are respectively provided with a plurality of rear reinforcing steel bars (3).

8. The emergency reinforcing monomer of claim 5, 6 or 7, wherein: the emergency reinforcing core block (2) is fixedly connected or in sliding fit with the bottom steel plate (1-1).

9. An emergency density reinforcement method for beam fracture, which is realized by using the emergency reinforcing monomer as claimed in claim 7 or 8, and is characterized in that: the emergency density reinforcement method is a process of assembling and reinforcing by correspondingly selecting an adaptive number of emergency reinforcing monomers (10) according to the width and the length of the broken position of the beam body (50) and the broken degree of each reinforcing steel bar; the emergency density reinforcement method comprises the following steps:

pretreatment and cleaning: cleaning concrete fragments at the beam body fracture part (50), and cleaning the concrete fragments generated by fracture and concrete fragments generated by cutting irregular concrete until the exposed length of each steel bar broken head (50-1) in the beam body fracture part (50) is at least 15cm, so that the beam body fracture part (50) forms a regular wound;

counting and classifying: counting the number of the steel bar broken ends (50-1), classifying the types of the steel bar broken ends (50-1), analyzing the fracture reasons of an original beam body, wherein the type process of the steel bar broken ends (50-1) is a process of dividing a plurality of rear steel bars (3) into a group-type steel bar group, a straight-type steel bar group and a special-shaped single steel bar according to the bending degree and the aggregation density degree of the steel bars, the group-type steel bar group is a steel bar group formed by the steel bar broken ends (50-1) with bending lengths accounting for two thirds in at least three exposed lengths which are mutually close, the group-type steel bar group is correspondingly connected with an emergency reinforcing core block (2) with an extension strut (4) or an emergency reinforcing core block (2) with a counterweight sleeve (3-3), the straight-type steel bar group is a steel bar group formed by the steel bar broken ends (50-1) with at least three straight-type lengths accounting for two thirds, and the special-shaped single steel bar is a steel bar broken end or a single straight bar with different deflection angle from other adjacent steel bar broken ends (50-1);

After the positions and the number of the group-shaped reinforcing steel bar groups, the straight reinforcing steel bar groups and the special-shaped monomer reinforcing steel bars are determined, cutting the reinforcing steel bar broken ends (50-1) with the included angle between the bending angle in the group-shaped reinforcing steel bar groups and the initial direction of the reinforcing steel bar broken ends being larger than 100 degrees, wherein the lengths of the reinforcing steel bar broken ends after cutting are ensured to be exposed by at least 10 centimeters;

measurement: measuring the final length and width of the beam body fracture part (50) after cleaning, classifying and cutting treatment;

and (3) matching connection: and (3) correspondingly matching the structural form and the number of the emergency reinforcing monomers (10) according to the length and the width of the beam body fracture part (50) and the number of the group-shaped reinforcing steel bar groups, the straight reinforcing steel bar groups and the special-shaped monomer reinforcing steel bars:

determining the number of the emergency reinforcing monomers (10) according to the length of the beam body fracture parts (50), and ensuring that the length of the beam body fracture parts (50) is smaller than the total width of the emergency reinforcing monomers (10) by 5-10 cm;

for the group of reinforcing steel bars, correspondingly matching the emergency reinforcing core blocks (2) with the extension struts (4) and/or the emergency reinforcing core blocks (2) with the counterweight sleeves (3-3), ensuring that the total number of the group of reinforcing steel bars, the straight reinforcing steel bars and the special-shaped single reinforcing steel bars is matched with the number of the rear reinforcing steel bars (3), correspondingly matching 1-3 rear reinforcing steel bars (3) for the reinforcing steel bar broken ends (50-1) with larger diameter length, wrapping, and fixedly connecting each reinforcing steel bar broken end (50-1) with the rear reinforcing steel bars (3) adjacent to the matching reinforcing steel bar broken ends;

And (3) formwork supporting and pouring: and pouring the plurality of installed emergency reinforcing monomers (10) to realize the pouring process after the connection of the reinforcing steel bars.