A device for resetting the shape of a frame structure and a working method

Abstract

The application discloses a device and a working method for shape resetting of a frame structure, belongs to the technical field of beam-column joint angle resetting, and comprises a resetting structure design and a method for quickly resetting a beam-column joint. According to a measured value of an inclination sensor, a computer controls a hydraulic actuator to complete the resetting of a beam-column included angle. After installing a haunch plate and fixing, the hydraulic actuator is removed, and the resetting work of the beam-column included angle is completed. In a frame structure suffering from earthquake damage, the column end and the beam end of the beam-column joint will suffer from unrecoverable damage and plastic deformation, and a key measurement index is the change degree of the beam-column included angle to the orthogonal position. The application discloses a resetting device and three working methods for beam-column resetting, so as to perform post-earthquake beam-column shape resetting work of the frame structure.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of beam-column joint angle resetting, and particularly relates to a device for shape resetting of a frame structure and a working method. BACKGROUND

[0002] Frame structure is a common construction form in the field of building, and post-disaster repair represented by post-earthquake repair is a major technical issue in the field of building today and is one of the key technologies to realize sustainable development. At present, the repair of beams and columns in frame structures generally adopts methods such as steel bonding reinforcement, carbon fiber sheet reinforcement, and external steel reinforcement. Among them, steel bonding reinforcement uses building structural adhesive to bond steel plates to the concrete surface of beams and columns to improve the bearing capacity; carbon fiber reinforcement is to paste carbon fiber cloth on the concrete surface of beams and columns to form a unified whole with the carbon fiber cloth and the concrete; external steel reinforcement structure is composed of angle steels attached to the four corners of the column and horizontal panels connecting the angle steels, so that the angle steels and the column bear the load together.

[0003] The above three reinforcement methods use steel plates and carbon fiber sheets to bear the load together with the original frame beams and columns, but these three reinforcement methods do not restore the deformed beams and columns to the initial orthogonal position. After directly using the above methods, the stress performance of the frame structure is still difficult to completely restore to the normal state. SUMMARY

[0004] The present application aims to overcome the above-mentioned deficiencies and provide a device for shape resetting of a frame structure and a working method, which solves the problem that the deformed beam end and column end cannot be restored to the orthogonal position during the repair of the frame structure.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A device for shape resetting of a frame structure, comprising a beam end inclination sensor, a column end inclination sensor, a beam rigid block, a column rigid block, and a hydraulic actuator;

[0007] The beam end inclination sensor and the column end inclination sensor are respectively installed on the beam end and the column end to be reset, for measuring the angle change value of the beam relative to the horizontal direction and the angle change value of the column relative to the vertical direction, and transmitting the angle change values to the controller;

[0008] The column rigid block is installed on the beam end to be reset, the column rigid block is installed on the side wall of the column end to be reset, and the end of the beam rigid block close to the beam-column included angle is hinged to the end of the column rigid block close to the beam-column included angle; the hydraulic actuator is connected with the beam rigid block through a first hinged support and connected with the column rigid block through a second hinged support.

[0009] The column rigid block comprises a second bottom plate, and a column rigid block hinge track for hinging with the beam rigid block is arranged at the first end of the second bottom plate;

[0010] The second base plate has a second extension track on each of its two side walls, and a second armhole track on each of its two front sides. The inner sides of the two armhole tracks are provided with second hinged supports.

[0011] The rigid beam block includes a first base plate, a rigid beam block hinge member at the first end of the first base plate, rigid rods on both sides of the rigid beam block hinge member, first extension rails on both sides of the first base plate, and first haunch rails on both sides of the front of the first base plate; first hinge supports are provided on the inner sides of the two first haunch rails; after the reset device has reset the beam-column angle, haunch plates are inserted into the first and second haunch rails to fix the two right-angled sides.

[0012] Furthermore, the second bottom plate is provided with column rigid block bolts at the second end, and the second end of the beam rigid block is provided with two beam rigid block bolts.

[0013] Furthermore, a displacement sensor is installed on the hydraulic actuator to measure the displacement of the hydraulic rod during operation. The beam end tilt sensor, column end tilt sensor, and hydraulic actuator are all connected to the controller.

[0014] A method for operating a device for reshaping the shape of a frame structure includes the following steps:

[0015] Step 1: Install beam end tilt sensors and column end tilt sensors at the axial positions of the beam and column at each beam-column node. The beam end tilt sensor measures the angle change of the beam relative to the horizontal direction. A column tip tilt sensor is installed at a position perpendicular to the column tip's centerline to measure the change in the column's angle relative to the vertical direction. Based on the change in angle of the transmission beam relative to the horizontal direction The change in angle of the column relative to the vertical direction The transfer value is used to calculate the angular change of the included angle between the beam and the column. ;

[0016] Step 2: Install a rigid beam block at the beam end where the beam-column angle is an acute angle deformation, and install a rigid column block at the column end, ensuring that the hinged connection between the rigid column block and the rigid beam block is within the angle formed by the column end and the beam end; connect both ends of the hydraulic actuator to the rigid column block and the first hinged support and the second hinged support respectively, and connect the rigid bolt to the hinged joint and the first hinged support.

[0017] Step 3: Based on the change in the angle between the beam and the column. Based on the actual load borne by each column, determine the repair sequence, and repair the column ends using hydraulic actuators according to the repair sequence.

[0018] Further, step 3 includes the following steps:

[0019] Step 3.1, the angle change value of each beam-column included angle Sort from large to small, the largest change value of the included angle is recorded as α1;

[0020] Step 3.2, according to the angle change value of the beam-column joint , the geometric relationship between the beam rigid block and the column rigid block is calculated to calculate the displacement of the hydraulic actuator to be loaded, and the control computer issues an instruction to the corresponding hydraulic actuator to apply the displacement required to restore the beam-column to the orthogonal position;

[0021] Step 3.3, when the beam-column included angle α1 resets the angle change value of 60%, the beam-column included angle α1 is re-measured, and if the absolute value of the difference between the angle value of the beam-column included angle α1 and 90° is less than the allowable error , then the reset is complete; if the absolute value of the difference between the angle value of the beam-column included angle α1 and 90° is greater than the allowable error , then continue to control the hydraulic actuator to load; when the beam-column included angle α1 resets the angle change value of 80%, the angle value of the beam-column included angle α1 is re-measured, and if the absolute value of the difference between the angle value of the beam-column included angle α1 and 90° is less than the allowable error , then the reset is complete; if the absolute value of the difference between the angle value of the beam-column included angle α1 and 90° is greater than the allowable error , then continue to control the hydraulic actuator to load until the beam-column included angle α1 is reset;

[0022] Step 3.4, insert the haunch plate into the first haunch track and the second haunch track respectively to fix the orthogonal state of the beam-column included angle, and then fix the haunch plate between the column rigid block and the beam rigid block through the fixing plate, and remove the hydraulic actuator;

[0023] Step 3.5, re-measure the current angle change value of the other beam-column joints that have not been reset, and first record the largest change angle relative to 90° as α1, and repeat the above steps 3.2-3.5.

[0024] Further, step 3 includes the following steps:

[0025] Step 3.1, select the lowest floor to reset, among the columns on the same floor, calculate the actual load borne by each column according to the measured floor and roof loads and design drawings, sort the load borne by all columns that have undergone acute angle deformation from large to small, and preferentially reset the beam-column joint of the column that has undergone acute angle deformation and bears the largest load;

[0026] Step 3.2, according to the angle change value of the beam-column joint , the geometric relationship between the beam rigid block and the column rigid block is calculated to obtain the displacement that the hydraulic actuator should load, and the hydraulic actuator corresponding to the beam-column node is controlled to issue a command to exert the displacement required to restore the beam-column to the orthogonal position;

[0027] Step 3.3, when the beam-column angle of the node is reset to 60% of the loading displacement, the angle value of the beam-column angle of all nodes is re-measured, and if the absolute value of the difference between the angle value of the beam-column angle of the node and 90° is less than the allowable error , the resetting is completed; if the absolute value of the difference between the angle value of the beam-column angle of the node and 90° is greater than the allowable error , the corresponding hydraulic actuator is controlled to continue loading; when the beam-column angle that has been reset is reset to 80% of the angle change value , the angle value of the beam-column angle is re-measured, and if the absolute value of the difference between the angle value of the beam-column angle and 90° is less than the allowable error , the resetting is completed; if the absolute value of the difference between the angle value of the beam-column angle and 90° is still greater than the allowable error , the corresponding hydraulic actuator is controlled to continue loading until all beam-column angles are reset.

[0028] Step 3.3, the first and second haunch plates are inserted into the first and second haunch tracks respectively to fix the orthogonal state of the beam-column angle, and the haunch plates are fixed between the column rigid block and the beam rigid block through the fixing plate, and the hydraulic actuator is removed.

[0029] Step 3.4, the beam-column nodes of the same layer as the column that has undergone an acute angle change under the maximum load are sequentially reset according to the method of steps 3.2-3.3 in the order of step 3.1.

[0030] Step 3.5, other floors are reset according to the method of steps 3.1-3.4.

[0031] Further, step 3 includes the following steps:

[0032] Step 3.1, the lowest floor that has not been reset is selected for resetting, the geometric relationship between the beam rigid block and the column rigid block is calculated to obtain the displacement that the hydraulic actuator should load, and the displacement of the actuator corresponding to the angle that needs to be reset for each node is divided into equal parts according to the geometric relationship;

[0033] Step 3.2, the computer is controlled to issue a command to the hydraulic actuator set on the same layer to exert the displacement required by the corresponding node angle change value ; wherein n is the number of actions of the hydraulic actuator.

[0034] ​Step 3.3, issuing the instruction of the corresponding hydraulic actuator to the corresponding hydraulic actuator Step 3.2, issuing the instruction of the corresponding hydraulic actuator to the corresponding hydraulic actuator If the absolute value of the difference between the angle value of the beam-column joint angle and 90° is less than the allowable error after the reset , the beam-column joint angle after the reset meets the requirement; if the absolute value of the difference between the angle value of the beam-column joint angle and 90° is greater than the allowable error , the angle of the beam-column joint angle that needs to be reset is measured again, and the displacement of the corresponding hydraulic actuator of the last step is divided into n equal parts again;

[0035] Step 3.4, issuing the instruction of the corresponding hydraulic actuator to the corresponding hydraulic actuator to change the angle value of the corresponding joint angle

[0036] Step 3.5, issuing the instruction of the corresponding hydraulic actuator to the corresponding hydraulic actuator Step 3.4, judging the allowable error of the absolute value of the difference between the angle value of the beam-column joint angle and 90° , if the absolute value of the difference between the angle value of the beam-column joint angle and 90° is less than the allowable error after the reset , the beam-column joint angle after the reset meets the requirement; otherwise, the angle of the beam-column joint angle that needs to be reset is measured again, and the displacement of the corresponding hydraulic actuator of the last step is divided into n equal parts again, and the displacement of the corresponding hydraulic actuator of the last step is divided into n equal parts again.

[0037] Step 3.6, inserting the haunch plate into the first haunch track and the second haunch track respectively to fix the orthogonal state of the beam-column joint angle, and then fixing the haunch plate between the column rigid block and the beam rigid block through the fixing plate, and removing the hydraulic actuator;

[0038] Step 3.7, resetting other floors according to the method of steps 3.1-3.4.

[0039] Compared with the prior art, the present application has at least the following beneficial technical effects:

[0040] The reset device of the application comprises a beam rigid plate, a column rigid plate and a hydraulic actuator, the beam rigid plate, the column rigid plate and the hydraulic actuator are connected through hinging and can be applied to the beam end and the column end of the deformed beam-column joint, the hydraulic actuator is controlled to generate displacement according to the different deformation degrees of the beam-column joint, so that the beam end and the column end of the deformed beam-column joint are restored to the orthogonal position.

[0041] The method disclosed by the application is used for installing the reset device to the deformed beam-column included angle, controlling the hydraulic actuator to generate displacement, pushing the column rigid block and the beam rigid block by the hydraulic actuator to generate angle change, restoring the beam end and the column end of the deformed beam-column joint to the orthogonal position, enabling the reset beam-column joint to continue to bear and greatly improving the service life of the frame structure.

[0042] The method disclosed by the application solves the shape reset problem of the frame structure which cannot be realized by the traditional reinforcement method, and the three working methods provided by the application can be selected according to the actual situation of the construction site.

[0043] The method provided by the application can be used for the beam-column reset work before the steel reinforcement, the carbon reinforcement and the external steel reinforcement, can restore the beam end and the column end of the beam-column joint to the orthogonal position, and then the reset joint can be further reinforced, so that the reinforced joint is restored to the normal stress state. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is a schematic diagram of the installation of the reset device in the frame structure;

[0045] Figure 2 It is a schematic diagram of the installation of the reset device;

[0046] Figure 3 It is a front view of the column rigid block;

[0047] Figure 4 It is a top view of the column rigid block;

[0048] Figure 5 It is a top view of the beam rigid block;

[0049] Figure 6 It is a front view of the beam rigid block;

[0050] Figure 7 It is a detailed view of the detachable hydraulic actuator;

[0051] Figure 8 Figure 1 is a schematic diagram of the installation of the haunch plate;

[0052] Figure 9 Figure 2 is a schematic diagram of the fixing of the haunch plate;

[0053] Figure 10 Figure 3 is a schematic diagram of the flow of the reset work method 1;

[0054] Figure 11 Figure 4 is a schematic diagram of the flow of the reset work method 2;

[0055] Figure 12 Figure 5 is a schematic diagram of the flow of the reset work method 3;

[0056] Figure 13 Figure 6 is a schematic diagram of the selected part of the beam-column angle of the reset work method 3.

[0057] Wherein, 1-beam end inclination sensor, 2-column end inclination sensor, 3-beam rigid block, 4-column rigid block, 5-hydraulic actuator, 6-column end, 7-beam end, 8-column rigid block bolt, 9-beam rigid block bolt, 10-first hinged support, 11-second hinged support, 12-rigid bolt, 13-hydraulic source, 14-first haunch track, 15-first bottom plate, 16-beam rigid block hinged component, 17-rigid rod, 18-first expansion track, 19-column rigid block hinged track, 20-second haunch track, 21-second bottom plate, 22-second expansion track, 23-haunch plate, 24-fixing plate, 25-fixing nut, 26-hinged joint, 27-control valve, 28-oil cylinder.

[0058] Wherein, the hinged end of the beam rigid block and the column rigid block is the first end, and the other end of the beam rigid block and the column rigid block is the second end; the upper end of the hydraulic actuator is the first end, and the lower end is the second end; the front view of the column rigid block is the front of the column rigid block, and the front view of the beam rigid block is the front of the beam rigid block. DETAILED DESCRIPTION

[0059] In order to make the purpose and technical scheme of the present application more clear and convenient to understand. The present application is further described in detail below in combination with the drawings and examples, and the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0060] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. In the description of the present application, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] Referring to Figure 1 , this figure is a schematic diagram of the installation of the resetting device in the frame structure, the resetting device is installed diagonally in the "cross" beam-column joint, the resetting device is installed at the acute angle after the deformation of the "T" shaped beam-column joint after the earthquake, and the resetting device can be increased according to the actual deformation of the beam-column joint during operation. A device for resetting the shape of a frame structure, comprising a beam end inclination sensor 1, a column end inclination sensor 2, a beam rigid block 3, a column rigid block 4 and a hydraulic actuator 5. The beam end inclination sensor 1 and the column end inclination sensor 2 measure the angle change value of the beam-column joint in real time, and feed back the angle change value of the beam-column joint to the control computer, and then the control computer controls the control valve 27 to make the hydraulic actuator 5 generate corresponding displacement. The hydraulic actuator 5 pushes the beam rigid block 3 and the column rigid block 4 to generate angle change, so as to reset the beam-column included angle.

[0062] Referring to Figure 2 , this figure is a schematic diagram of the installation of the resetting device, including a column end inclination sensor 2, a beam end inclination sensor 1, a beam rigid block 3, a column rigid block 4, a hydraulic actuator 5, a hydraulic source 13 and a computer.

[0063] The beam end inclination sensor 1, the column end inclination sensor 2 and the hydraulic actuator 5 are connected with the control computer through wires respectively; the beam rigid block 3 is installed at the middle axis position of the beam end 7, the column rigid block 4 is fixedly installed on the side wall of the column end 6, the first end of the beam rigid block 3 and the first end of the column rigid block 4 are hingedly connected; the hydraulic actuator 5 is connected with the beam rigid block 3 through the first hinged support 10 and connected with the column rigid block 4 through the second hinged support 11; the hydraulic actuator 5 is connected with the hydraulic source 13 through a hydraulic pipe.

[0064] With reference to Figure 3 and Figure 4 , the column rigid block 4 comprises a second bottom plate 21, a column rigid block hinged track 19, a second hinged support 11, a second expansion track 22, a second add axillary track 20 and a column rigid block bolt 8.

[0065] The first end of the column rigid block 4 is provided with the column rigid block hinged track 19, the first end of the beam rigid block hinged component 16 is inserted into the column rigid block hinged track 19 through the opening structure, then the opening structure of the column rigid block hinged track 19 (the opening structure is at the middle position of the upper surface of the protruding part of the first end of the column rigid block 4) is welded with a steel plate to seal the opening, so that the beam rigid block 3 and the column rigid block 4 cannot fall off and can freely rotate, realizing the hinged connection of the beam rigid block 3 and the column rigid block 4, the two side walls of the second bottom plate 21 are respectively provided with the second expansion track 22, the front sides of the second bottom plate 21 are respectively provided with the second add axillary track 20, the inner sides of the two second add axillary tracks 20 are provided with the second hinged support 11, and the second ends of the column rigid block are respectively provided with the column rigid block bolt 8. The column rigid block bolt 8 is welded in advance at the second end of the column rigid block during prefabrication.

[0066] With reference to Figure 5 and Figure 6 , the beam rigid block 3 comprises a first bottom plate 15, a first hinged support 10, a first expansion track 18, a first add axillary track 14, a beam rigid block hinged component 16 and a beam rigid block bolt 9.

[0067] The first end of the first bottom plate 15 is provided with the beam rigid block hinged component 16, the two sides of the beam rigid block hinged component 16 are respectively provided with the rigid rod 17, the two side walls of the first bottom plate 15 are respectively provided with the first expansion track 18, and the front sides of the first bottom plate 15 are respectively provided with the first add axillary track 14. The inner sides of the two first add axillary tracks 14 are provided with the first hinged support 10, the second end of the beam rigid block is provided with the two beam rigid block bolts 9, and the beam rigid block bolt 9 is welded in advance at the second end of the beam rigid block during prefabrication.

[0068] With reference to Figure 7, the hydraulic actuator 5 includes a cylinder 28, a control valve 27, a hinged joint 26 and a hydraulic source 13. The hydraulic actuator 5 can select MTS actuator 244.22 or MTS actuator 244.41. The hydraulic rod of the hydraulic actuator 5 is a single head telescopic, and the reaction force of the hydraulic rod acts on the second end of the hydraulic actuator 5, so as to simultaneously adjust the column end 6 and the beam end 7, and the displacement of the hydraulic actuator 5 is calculated according to the angle change value of the beam-column included angle , the geometric relationship between the beam rigid block 3 and the column rigid block 4 is calculated to calculate the displacement of the hydraulic actuator 5 to be loaded, and the column end 6 and the beam end 7 are reset to the orthogonal position. The first end and the second end of the hydraulic actuator 5 are respectively provided with the hinged joint 26, which can be hinged with the first hinged support 10 and the second hinged support 11; the control valve 27 is connected with the computer, the cylinder 28 is externally provided with the hydraulic source 13, the cylinder 28 is connected with the hydraulic source 13 through the hydraulic pipe, and the control valve 27 controls the hydraulic source 13 to provide pressure for the cylinder 28 through the hydraulic pipe, so that the hydraulic actuator 5 generates displacement.

[0069] Referring to Figure 8 , the installation diagram of the add-on plate is shown, when the beam-column included angle is reset by the reset device, the first add-on track 14 of the beam rigid block 3 and the second add-on track 20 of the column rigid block 4 are inserted into the add-on plate 23 to fix the two right angle edges, so that the reset beam-column included angle is in the orthogonal state.

[0070] Referring to Figure 9 , the fixing diagram of the add-on plate is shown, when the add-on plate 23 is fixed, the add-on plate 23 is inserted into the first add-on track 14 and the second add-on track 20 to fix the two right angle edges, so that the orthogonal state of the beam-column included angle is fixed, and then the add-on plate 23 is fixed between the column rigid block 4 and the beam rigid block 3 through the fixing plate 24. The fixing plate 24 is anchored on the beam rigid block 3 by the beam rigid block bolt 9 through the fixing nut 25, and is anchored on the column rigid block 4 by the column rigid block bolt 8 through the fixing nut 25.

[0071] In use: the rigid rod 17 on the beam rigid block hinged member 16 is inserted into the column rigid block hinged track 19, the opening structure of the column rigid block hinged track 19 (the opening structure is in the middle position of the upper surface of the protruding part of the first end of the column rigid block 4) is welded by a steel plate to seal the opening, so as to ensure that the beam rigid block 3 and the column rigid block 4 cannot fall off and can freely rotate, realizing the hinged connection of the beam rigid block 3 and the column rigid block 4; because the width of the prefabricated rigid block in the factory cannot change with the width of the beam end 7, the first expansion track 18 at both ends of the beam rigid block is inserted into the expansion plate to expand the beam rigid block 3 to the same width as the deformed beam end 7; similarly, the width of the column rigid block is expanded to the same width as the column end.

[0072] The hydraulic actuator 5 is installed between the first hinged support 10 and the second hinged support 11, the first end of the hydraulic actuator 5 is inserted into the first hinged support 10 and the hinged joint 26 of the hydraulic actuator by the rigid bolt 12, the second end of the hydraulic actuator 5 is inserted into the second hinged support 11 and the hinged joint 26 of the hydraulic actuator by the rigid bolt 12, and the two positions form a hinged connection.

[0073] A working method of a device for resetting the shape of a frame structure comprises the following steps:

[0074] Step one, remove the decorative layer on the surface of all column ends 6 and beam ends 7, polish the surface of the column ends 6 and beam ends 7, and apply building structure glue on the surface of the column ends 6 and beam ends 7, so that the column rigid blocks 4 and the column ends 6 are glued together, and the beam rigid blocks 3 and the beam ends 7 are glued together. The column rigid block 4 is installed along the central axis of the column end 6 to the middle part of the column body, and then the column rigid block 4 is fixed at the central axis position of the column end 6 by building structure glue; the beam rigid block 3 is installed along the central axis of the top surface or bottom surface of the beam to the middle part of the beam body, and then the beam rigid block 3 is fixed at the central axis position of the beam end 7 by building structure glue. The hinged connection part of the column rigid block 4 and the beam rigid block 3 is adjacent to the included angle formed by the column end 6 and the beam end 7.

[0075] The beam end inclination sensor 1 and the column end inclination sensor 2 are respectively installed at the axial positions of the beam and the column of each beam-column joint, and the beam end inclination sensor 1 and the column end inclination sensor 2 are respectively connected with the control computer. The beam end inclination sensor 1 is installed along the axis of the beam end 7, and can measure the angle change of the beam relative to the horizontal direction The column end inclination sensor 2 is installed at the position perpendicular to the central axis of the column end 6, and can measure the angle change of the column relative to the vertical direction The angle change of the beam relative to the horizontal direction And the angle change of the column relative to the vertical direction are transmitted to the computer, and the computer calculates the angle change value of the beam-column included angle as All resetting devices in the present application are installed at the beam-column included angle positions after deformation.

[0076] Step two, install the hydraulic actuator 5, connect the hydraulic actuator 5 with the control computer, and connect the two ends of the hydraulic actuator 5 with the first hinged support 10 and the second hinged support 11 respectively, connect the hinged joint 26 and the first hinged support 10 by the rigid bolt 12 to form a hinged connection.

[0077] Step three, the inclination sensor measures the angle change value of each beam-column included angle in real time The angle change value of each beam-column included angle is fed back to the computer, and the control computer calculates the angle change value of each beam-column included angle The displacement information of the hydraulic actuator is calculated, and when the computer loads the instruction to the hydraulic actuator 5, the control valve 27 is opened; the displacement sensor integrated in the hydraulic actuator 5 measures the displacement value of the hydraulic actuator 5 and feeds back the displacement value to the computer in real time. The computer controls the hydraulic source 13 to respectively supply oil to the oil cylinder 28, so that the hydraulic actuator 5 generates the displacement to reset the beam-column joint. When the resetting device resets the beam-column included angle, the first and second add rib tracks 14 and 20 are inserted into the add rib plate 23 to fix the two right angle edges, so that the orthogonal state of the beam-column included angle is fixed, and then the add rib plate 23 is fixed between the column rigid block 4 and the beam rigid block 3 through the fixing plate 24, and the fixing plate 24 is anchored on the beam rigid block 3 by the beam rigid block bolt 9 through the fixing nut 25; the column rigid block bolt 8 is anchored on the column rigid block 4 through the fixing nut 25. When the displacement of the hydraulic rod measured by the displacement sensor integrated in the hydraulic actuator 5 reaches the loading displacement, the computer closes the control valve 27.

[0078] Referring to Figure 10 , 11 , 12, the three figures are respectively operation flow schematic diagrams of the resetting work method one, the work method two and the work method three.

[0079] Referring to Figure 13 , the figure is a schematic diagram of the beam-column included angle selected in the method three, in which , , , is the beam-column included angle which is an acute angle after the earthquake.

[0080] The following three work methods for resetting the shape of the frame structure are respectively given, including the following steps:

[0081] Method one: resetting in order according to the change of the beam end and column end included angle

[0082] Step one, removing the decoration layer on the surface of the column end 6 and the beam end 7, polishing the surface of the column end 6 and the beam end 7, and smearing the building structure glue on the surface of the column end 6 and the beam end 7, so that the column rigid block 4 and the column end 6 are glued together, and the beam rigid block 3 and the beam end 7 are glued together. The column rigid block 4 is installed and placed along the central axis of the column end 6 to the middle part of the column body, and then the column rigid block 4 is fixed at the central axis position of the column end 6 by the building structure glue; the beam rigid block 3 is installed and placed along the central axis of the top surface or bottom surface of the beam to the middle part of the beam body, and then the beam rigid block 3 is fixed at the central axis position of the beam end 7 by the building structure glue. The hinged connection position of the column rigid block 4 and the beam rigid block 3 is adjacent to the included angle formed by the column end 6 and the beam end 7. The beam end inclination sensor 1 and the column end inclination sensor 2 are respectively installed at the axis positions of the column end 6 and the beam end 7 of each beam-column included angle, and all the beam end inclination sensors 1 and the column end inclination sensors 2 are connected with the computer.

[0083] Step two, to reset the beam-column joint with the largest deformation, the beam inclination sensor 1 measures the angle change of the beam relative to the horizontal direction and transmits it to the computer, the column inclination sensor 2 measures the angle change of the column relative to the vertical direction and transmits it to the computer, the computer calculates the angle change value of each beam-column angle , sorts the angle change values of each beam-column angle from large to small, and records the angle with the largest angle change value relative to 90° as α1.

[0084] Step three, install the hydraulic actuator 5 at the angle α1, connect the hydraulic actuator 5 with the control computer, calculate the displacement that the hydraulic actuator 5 should load according to the angle change value of each beam-column angle , the geometric relationship between the beam rigid block 3 and the column rigid block 4, and the control computer issues an instruction to the corresponding hydraulic actuator 5 to apply the displacement required to restore the beam-column joint to the orthogonal position.

[0085] Step four, to avoid the displacement of the hydraulic rod of the hydraulic actuator 5 exceeding the loading displacement, the angle to be reset is reset three times. When the beam-column angle α1 is reset by 60% of the angle change in step one , re-measure the angle value of the beam-column angle α1, if the absolute value of the difference between the angle value of the beam-column angle α1 and 90° is less than the allowable error , the reset is complete; if the absolute value of the difference between the angle value of the beam-column angle α1 and 90° is greater than the allowable error , continue to control the hydraulic actuator 5 to load. When the angle value of the beam-column angle α1 is reset by 80% of the angle change in step one , re-measure the angle value of the beam-column angle α1, if the absolute value of the difference between the angle value of the beam-column angle α1 and 90° is less than the allowable error , the reset is complete; if the absolute value of the difference between the angle value of the beam-column angle α1 and 90° is greater than the allowable error , continue to control the hydraulic actuator 5 to load until the beam-column angle α1 is reset.

[0086] Step five, insert the gusset plate 23 into the first gusset track 14 and the second gusset track 20 respectively to fix the two right-angle sides, fix the orthogonal state of the beam-column angle, and then fix the gusset plate 23 between the column rigid block 4 and the beam rigid block 3 through the fixing plate 24, the beam rigid block bolt 9 is anchored to the beam rigid block 3 through the fixing nut 25, and the column rigid block bolt 8 is anchored to the column rigid block 4 through the fixing nut 25, and then the hydraulic actuator 5 is removed.

[0087] Step six, according to the real-time feedback of the beam inclination sensor 1​ and the real-time feedback of the column end inclination sensor 2 , recalculate the current angle change value of the other non-reset beam-column joint , first, the angle value of the beam-column included angle is renumbered as a1 relative to the maximum included angle of the 90° change value, and steps two to five are repeated.

[0088] Method two: reset in order of column load size

[0089] Step one, remove the decorative layer on the surface of the column end 6 and the beam end 7, polish the surface of the column end 6 and the beam end 7, and apply building structure glue on the surface of the column end 6 and the beam end 7 to cement the column rigid block 4 and the column end 6 together, and the beam rigid block 3 and the beam end 7 together. The column rigid block 4 is installed and placed along the central axis of the column end 6 to the middle of the column body, and then the column rigid block 4 is fixed at the central axis position of the column end 6 by building structure glue; the beam rigid block 3 is installed and placed along the central axis of the top surface or bottom surface of the beam to the middle of the beam body, and then the beam rigid block 3 is fixed at the central axis position of the beam end 7 by building structure glue. The hinged connection part of the column rigid block 4 and the beam rigid block 3 is adjacent to the included angle formed by the column end 6 and the beam end 7.

[0090] Step two, this method resets all columns in order of load from large to small, according to the measured floor and roof load and design drawings, the actual load of each column of the entire frame structure is obtained through structural analysis calculation, the load of all beam-column joints with acute angle deformation is sorted from large to small, and the beam-column joint with acute angle deformation of the column with the largest load is preferentially reset. Step three, install beam end inclination sensor 1 and column end inclination sensor 2 at the beam-column joints on both sides of the column with the largest load, install beam end inclination sensor 1 along the axis to the beam end 7, install column end inclination sensor 2 along the axis to the column end 6, and connect beam end inclination sensor 1 and column end inclination sensor 2 with the computer. Install hydraulic actuator 5 at the beam-column joint with acute angle deformation of the column with the largest load, connect hydraulic actuator 5 with the control computer, and transfer the angle change value of the beam relative to the horizontal direction measured by beam end inclination sensor 1 and the angle change value of the column relative to the vertical direction measured by column end inclination sensor 2 to the computer for calculation, and calculate the angle change value of each beam-column included angle by the computer. and the real-time feedback of the column end inclination sensor 2 transferred to the computer ( ), and then calculate the displacement that the hydraulic actuator 5 should load according to the angle change value of the beam-column included angle , the geometric relationship between the beam rigid block 3 and the column rigid block 4, and the control computer sends an instruction to the corresponding hydraulic actuator 5 to apply the displacement required to restore the beam-column joint to the orthogonal position.

[0091] Step four, to avoid the displacement of the hydraulic rod of the hydraulic actuator 5 exceeding the loading displacement, the angles of all nodes needing to be reset are reset three times. When the angle change of the beam-column angle of the node in step three is 60%, the angle value of the beam-column angle of all nodes is re-measured. If the absolute value of the difference between the angle value of the beam-column angle of the node and 90° is less than the allowable error, the resetting is completed. If the absolute value of the difference between the angle value of the beam-column angle of the node and 90° is greater than the allowable error, the corresponding hydraulic actuator 5 is controlled to continue loading. When the angle change of the beam-column angle in step three is 80%, the angle value of the beam-column angle is re-measured. If the absolute value of the difference between the angle value of the beam-column angle and 90° is less than the allowable error, the resetting is completed. If the absolute value of the difference between the angle value of the beam-column angle and 90° is still greater than the allowable error, the corresponding hydraulic actuator 5 is controlled to continue loading until all beam-column angles are reset.

[0092] Step five, the first and second haunch tracks 14 and 20 are inserted into the haunch plates 23 to fix the two right-angle sides, the orthogonal state of the beam-column angle is fixed, and then the haunch plates 23 are fixed between the column rigid blocks 4 and the beam rigid blocks 3 through the fixing plates 24. The fixing plates 24 are anchored to the beam rigid blocks 3 by the beam rigid block bolts 9 through the fixing nuts 25, and are anchored to the column rigid blocks 4 by the column rigid block bolts 8 through the fixing nuts 25. Then the hydraulic actuators 5 are removed.

[0093] Step six, the other columns not reset are sorted according to the load bearing from large to small in step two, and are sequentially reset according to steps three to five.

[0094] Method three: single-layer group column resetting

[0095] Step one, the decorative layer on the surface of all column ends 6 and beam ends 7 is removed, the surface of the column ends 6 and beam ends 7 is polished, and the column rigid blocks 4 and the beam rigid blocks 3 are glued together by applying building structural glue on the surface of the column ends 6 and beam ends 7. The column rigid blocks 4 are installed and placed along the central axis of the column ends 6 to the middle part of the column body, and are then fixed at the central axis position of the column ends 6 by building structural glue. The beam rigid blocks 3 are installed and placed along the central axis of the top surface or bottom surface of the beam to the middle part of the beam body, and are then fixed at the central axis position of the beam ends 7 by building structural glue. The hinge connection part of the column rigid blocks 4 and the beam rigid blocks 3 is adjacent to the angle formed by the column ends 6 and the beam ends 7.

[0096] ​​​​​​Step 2: This method starts with the lowest floor that has not been reset. At the axial positions of the column end 6 and beam end 7 of all beam-column nodes on the lowest floor that has not been reset, install beam end tilt sensor 1 and column end tilt sensor 2 respectively, and connect all beam end tilt sensor 1 and column end tilt sensor 2 to the computer.

[0097] Step 3: Install hydraulic actuators 5 at the angles of all beams and columns on the lowest floor where the post-earthquake angle deformation is acute. Connect all hydraulic actuators 5 to the control computer. The beam end tilt sensor 1 measures the angle. The data is then transmitted to the computer, where the column tip tilt sensor 2 measures the tilt angle. The data is then transmitted to a computer, which calculates the angular variation values ​​of the included angles between each beam and column. ( Then, the change in the angle between the beam and the column. The geometric relationship between beam rigid block 3 and column rigid block 4 is used to calculate the displacement that the hydraulic actuator 5 should be loaded with. The displacement of the actuator corresponding to the angle that each node needs to recover is evenly divided into... The displacement of the hydraulic actuator 5 is controlled by a step-by-step reset method, dividing the displacement into equal parts.

[0098] Step 4: The control computer sends a signal to the hydraulic actuator 5 to change the angle of the corresponding node. , , , The command to apply the required displacement. Among them, , , , For the appendix Figure 13 The angle between the beam and column after the moderate earthquake is an acute angle, and n is the number of times the hydraulic actuator operates.

[0099] Step 5: Send a signal to the corresponding hydraulic actuator 5 The instructions in step four are completed after... After this operation, if the absolute value of the difference between the included angle and 90° of all beams and columns after resetting is less than the allowable error... If the angle of the beam-column joint after resetting meets the requirements (because simultaneous operation on all nodes may not restore all nodes to their orthogonal positions, a final step size needs to be reserved for subsequent adjustments; the step-by-step resetting method used in this method does not perform the nth operation), then the angle of the beam-column joint will be reset. Then, measure the angle of the beam-column angle that has not been reset again, and divide the displacement of the hydraulic actuator 5 corresponding to the last step angle into n equal parts again.

[0100] Step Six: The control computer sends a signal to the corresponding hydraulic actuator 5 to change the angle of the corresponding node. , , , the instruction of the displacement required to be applied.

[0101] Step seven, the hydraulic actuators 5 corresponding to the beam-column joints are controlled to apply displacement according to the instruction of the displacement required to be applied. Step six, the instructions of the displacement required to be applied are again calculated according to the angle values of the beam-column joints after the n-1 times of operation. After the n-1 times of operation, if the absolute values of the differences between the angle values of the beam-column joints after the reset and 90° are all less than the allowable error , the beam-column joints after the reset meet the requirements (since all the joints are not necessarily restored to the orthogonal position when they are operated at the same time, a last step is required for subsequent adjustment, and the step-by-step reset method in this method does not perform the n times of operation). Otherwise, the angles of the beam-column joints that need to be reset are measured again, the displacement of the hydraulic actuators 5 corresponding to the last step is again divided into n equal parts, the step-by-step reset method is used to control the hydraulic actuators 5 to apply displacement, and the operation is repeated until the beam-column joints of the layer are reset.

[0102] Step eight, the gusset plates 23 are inserted into the first gusset track 14 and the second gusset track 20 respectively to fix the two right-angle edges, the orthogonal state of the beam-column joints is fixed, the gusset plates 23 are fixed between the column rigid blocks 4 and the beam rigid blocks 3 through the fixing plates 24, the fixing plates 24 are anchored to the beam rigid blocks 3 by the beam rigid block bolts 9 through the fixing nuts 25, and the column rigid block bolts 8 are anchored to the column rigid blocks 4 through the fixing nuts 25, and then all the hydraulic actuators 5 are removed.

[0103] Step nine, the steps two to eight are sequentially performed for the reset of the second layer to the highest layer.

[0104] The above content only illustrates the technical idea of the present application, and cannot limit the protection scope of the present application. Any modification made according to the technical idea of the present application on the basis of the technical solution falls within the protection scope of the claims of the present application.

Claims

1. A device for reshaping the shape of a frame structure, characterized in that, It includes a beam end tilt sensor (1), a column end tilt sensor (2), a beam rigid block (3), a column rigid block (4), and a hydraulic actuator (5); The beam end tilt sensor (1) and column end tilt sensor (2) are respectively installed on the beam end (7) and column end (6) to be reset, and are used to measure the angle change value of the beam relative to the horizontal direction and the angle change value of the column relative to the vertical direction, and transmit the angle change value to the controller. The column rigid block (4) is installed on the beam end (7) to be reset, the column rigid block (4) is installed on the side wall of the column end (6) to be reset, and the end of the beam rigid block (3) near the beam-column angle is hinged to the end of the column rigid block (4) near the beam-column angle; the hydraulic actuator (5) is connected to the beam rigid block (3) through the first hinge support (10) and to the column rigid block (4) through the second hinge support (11); The column rigid block (4) includes a second base plate (21), and the first end of the second base plate (21) is provided with a column rigid block hinge track (19) for hinged with the beam rigid block (3). The second base plate (21) has a second extension track (22) on each side wall, and a second armhole track (20) on each side of the front of the second base plate (21). A second hinge support (11) is provided on the inner side of the two second armhole tracks (20). The rigid beam block (3) includes a first base plate (15), a rigid beam block hinge member (16) is provided at the first end of the first base plate, rigid rods (17) are provided on both sides of the rigid beam block hinge member (16), a first extension track (18) is provided on each side wall of the first base plate, and a first haunch track (14) is provided on each side of the front of the first base plate (15); a first hinge support (10) is provided on the inner side of the two first haunch tracks (14); After the resetting device has finished resetting the beam-column angle, the haunch plate (23) is inserted into the first haunch rail (14) and the second haunch rail (20) to fix the two right-angled sides.

2. The device for reshaping the shape of a frame structure according to claim 1, characterized in that, The second bottom plate (21) is provided with column rigid block bolts (8) at the second end, and the beam rigid block (3) is provided with two beam rigid block bolts (9) at the second end.

3. The device for reshaping the shape of a frame structure according to claim 1, characterized in that, The hydraulic actuator (5) is equipped with a displacement sensor, which is used to measure the displacement of the hydraulic rod during operation. The beam end tilt sensor (1), the column end tilt sensor (2) and the hydraulic actuator (5) are all connected to the controller.

4. The operating method of the device for reshaping the shape of a frame structure as described in claim 1, characterized in that, Includes the following steps: Step 1: Install beam end tilt sensors (1) and column end tilt sensors (2) at the axial positions of the beam and column at each beam-column node. The beam end tilt sensor (1) measures the angle change of the beam relative to the horizontal direction. A column end tilt sensor (2) is installed at a position perpendicular to the centerline of the column end (6) to measure the angle change of the column relative to the vertical direction. Based on the change in angle of the transmission beam relative to the horizontal direction The change in angle of the column relative to the vertical direction The transfer value is used to calculate the angular change of the included angle between the beam and the column. ; Step 2: Install a beam rigid block (3) at the beam end (7) where the beam-column angle is an acute angle deformation, and install a column rigid block (4) at the column end (6), and make the hinge connection between the column rigid block (4) and the beam rigid block (3) located within the angle formed by the column end (6) and the beam end (7); connect the two ends of the hydraulic actuator (5) to the column rigid block (4) and the first hinge support (10) and the second hinge support (11) respectively, and connect the rigid bolt (12) to the hinge joint (26) and the first hinge support (10); Step 3: Based on the change in the angle between the beam and the column. Based on the actual load borne by each column, determine the repair sequence, and repair the column ends using a hydraulic actuator (5) according to the repair sequence.

5. The working method according to claim 4, characterized in that, Step 3 includes the following steps: Step 3.1: Calculate the angular variation values ​​of the included angles between each beam and column. Sort the angles from largest to smallest, and denote the angle with the largest change as α1; Step 3.2: Based on the angle variation value of the beam-column joint. The geometric relationship between the rigid beam block (3) and the rigid column block (4) is used to calculate the displacement that the hydraulic actuator (5) should load. The control computer sends a command to the corresponding hydraulic actuator (5) to apply the displacement required to restore the beam and column to the orthogonal position. Step 3.3: When the angle α1 between the beam and column has changed by 60% of its original value, remeasure the angle α1. If the absolute value of the difference between the angle α1 and 90° is less than the allowable error... Then the resetting is complete; if the absolute value of the difference between the angle α1 of the beam and column and 90° is greater than the allowable error... Then continue to control the hydraulic actuator (5) to load; when the angle α1 between the beam and column is 80% of the change value of the reset angle, remeasure the angle value of the angle α1 between the beam and column. If the absolute value of the difference between the angle value of the angle α1 between the beam and column and 90° is less than the allowable error Then the resetting is complete; if the absolute value of the difference between the angle α1 of the beam and column and 90° is greater than the allowable error... Then continue to control the hydraulic actuator (5) to load until the beam-column angle α1 is reset. Step 3.4: Insert the armature plate (23) into the first armature track (14) and the second armature track (20) respectively to fix the orthogonal state of the beam-column angle. Then fix the armature plate (23) between the column rigid block (4) and the beam rigid block (3) through the fixing plate (24). Remove the hydraulic actuator (5). Step 3.5: Remeasure the current angle change values ​​of other unreset beam-column nodes. First, record the angle with the largest change relative to 90° as α1, and repeat steps 3.2 to 3.5 above.

6. The working method according to claim 4, characterized in that, Step 3 includes the following steps: Step 3.1: Select the lowest floor that has not been reset and reset it. In the columns of the same floor, calculate the actual load borne by each column according to the measured floor and roof loads and design drawings. Sort the loads borne by all columns that have undergone acute angle deformation from large to small, and prioritize resetting the beam-column joints of the columns with the largest loads that have undergone acute angle changes. Step 3.2: Based on the angle variation value of the beam-column joint. The geometric relationship between the rigid beam block (3) and the rigid column block (4) is used to calculate the displacement that the hydraulic actuator (5) should load, and control the corresponding hydraulic actuator (5) to issue a command to apply the displacement required to restore the beam and column to their orthogonal positions. Step 3.3: When the beam-column angle at the node is reset to 60% of the loaded displacement, remeasure the angle values ​​of the beam-column angles at all nodes. If the absolute value of the difference between the beam-column angle value and 90° is less than the allowable error... Then the reset is complete; if the absolute value of the difference between the angle between the beam and column at a node and 90° is greater than the allowable error... Then control the corresponding hydraulic actuator (5) to continue loading; when the beam-column angle that has not been reset is reset to the angle change value. When the angle reaches 80%, remeasure the angle between the beam and column. If the absolute value of the difference between the angle and 90° is less than the allowable error... If the resetting is complete, then the absolute value of the difference between the angle between the beam and column and 90° still exists, and this difference exceeds the allowable error. If so, control the corresponding hydraulic actuator (5) to continue loading until all beam-column angles are reset; Step 3.3: Insert the armature plate (23) into the first armature track (14) and the second armature track (20) respectively to fix the orthogonal state of the beam-column angle. Then fix the armature plate (23) between the column rigid block (4) and the beam rigid block (3) through the fixing plate (24). Remove the hydraulic actuator (5). Step 3.4: Reset the beam-column nodes on the same floor as the beam-column node that changes acute angle with the column bearing the maximum load in accordance with the sorting in Step 3.1 and the methods in Steps 3.2 to 3.

3. Step 3.5: Reset the other floors according to the methods in steps 3.1 to 3.

4.

7. The working method according to claim 4, characterized in that, Step 3 includes the following steps: Step 3.1: Select the lowest floor that has not been reset and reset it, based on the angle change value of the beam-column joint. The displacement to be loaded by the hydraulic actuator (5) is calculated based on the geometric relationship between the rigid beam block (3) and the rigid column block (4). The actuator displacement loading value corresponding to the required reset angle of the node is calculated according to the geometric relationship. The displacement of the actuator corresponding to the required reset angle of each node is divided equally. Equal portions; Step 3.2: The control computer sends the value of the corresponding node angle change to the hydraulic actuator (5) set on the same floor. The command to apply the displacement; where n is the number of times the hydraulic actuator will operate; Step 3.3: Send a signal to the corresponding hydraulic actuator (5) The instructions in step 3.2, after completion During this operation, if the absolute value of the difference between the included angle of all beams and columns and 90° after resetting is less than the allowable error... If the angle of the beam-column joint after resetting meets the requirements, then the angle of the beam-column joint will be greater than the allowable error. Then measure the angle of the beam-column angle that has not been reset again, and divide the displacement of the hydraulic actuator (5) corresponding to the last step angle into n equal parts again. Step 3.4: Send the value that changes the angle of the corresponding node to the corresponding hydraulic actuator (5). The command to apply the required displacement; Step 3.5: Send a signal to the corresponding hydraulic actuator (5) The instruction in step 3.4 determines the allowable error of the sum of the absolute values ​​of the angle between the beam and column and the difference between 90° and the angle between the beam and column. Regarding the size relationship, if the absolute value of the difference between the included angle of all beams and columns and 90° after repositioning is less than the allowable error... If the reset beam-column joint meets the requirements, then the angle of the beam-column joint that has not been reset is measured again. Based on the angle change value of the beam-column joint and the geometric relationship between the rigid beam block (3) and the rigid column block (4), the displacement loading value of the hydraulic actuator (5) corresponding to the angle of the beam-column joint that needs to be reset is calculated. The displacement of the hydraulic actuator (5) corresponding to the last step angle is divided into n equal parts again. The step-by-step reset method is used again to control the hydraulic actuator (5) to apply displacement. This operation is repeated until the beam-column joint angle is reset. Step 3.6: Insert the armature plate (23) into the first armature track (14) and the second armature track (20) respectively to fix the orthogonal state of the beam-column angle. Then fix the armature plate (23) between the column rigid block (4) and the beam rigid block (3) through the fixing plate (24). Remove the hydraulic actuator (5). Step 3.7: Reset the other floors according to the methods in steps 3.1 to 3.4.

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