A method for detecting the connection firmness of steel structure connection nodes

Abstract

The present invention relates to a method for detecting the connection firmness of steel structure connection nodes, the method for detecting the connection firmness of steel structure connection nodes adopts the following steel structure node firmness detection device, the steel structure node firmness detection device comprises an arc frame, a support plate, a side support plate, a locking bolt, a locking plate and a detection mechanism; the method for detecting the connection firmness of steel structure connection nodes using the above-mentioned steel structure node firmness detection device comprises the following steps: S1, positioning of the arc frame; S2, locking of the arc frame; S3, adjustment of detection force; S4, comprehensive detection of column firmness. The present invention can solve the problems existing in the existing firmness detection of columns on steel structure beams: the connection stability between the test machine and the steel structure beam is poor, resulting in poor detection effect of the firmness of the columns, and the hammer force adjustment of the test machine on the steel structure columns is cumbersome, thereby affecting the efficiency of the column stability detection.

Description

Technical Field

[0001] The invention relates to the technical field of steel structures, and in particular to a method for detecting the connection firmness of connection nodes of steel structures. Background Art

[0002] Steel structure engineering is a structure made mainly of steel, mainly composed of steel beams, steel columns, steel trusses and other components made of steel and steel plates. The components or parts are usually connected by welds, bolts or rivets. It is one of the main types of building structures. Structural connection nodes refer to the connection and intersection between steel structures, such as the connection of columns on beams. The beams of steel structures are usually I-beams or H-beams.

[0003] After the connection of the columns on the beam is completed, the firmness of the columns needs to be tested. When testing the columns, the testing machine is generally locked on the beam, and the columns are tested for firmness by knocking or hammering. The existing problems in testing the firmness of the columns on the steel structure beam are as follows:

[0004] 1. The connection stability between the test machine and the steel structure beam is poor, which makes the column firmness detection effect poor. The hammer force adjustment of the steel structure column by the test machine is relatively cumbersome, thus affecting the efficiency of the column stability detection;

[0005] 2. The testing machine cannot freely hammer the steel structure columns at different positions, and the detection force on both sides of the column corresponding to the length direction of the beam cannot be kept consistent, resulting in low detection accuracy of the column. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a method for detecting the connection firmness of a steel structure connection node, the method for detecting the connection firmness of a steel structure connection node adopts the following steel structure node firmness detection device, the steel structure node firmness detection device comprises an arc frame, a support plate, a side support plate, a locking bolt, a locking plate and a detection mechanism, the number of the arc frames is two, the two arc frames are spliced ​​to form an annular structure, the upper side surface of the arc frame is provided with a sliding groove along its arc structure, the sliding groove runs through the outer end of the arc frame, the cross-section of the sliding groove is a T-shaped structure, a support plate is provided on the lower side surface of the middle part of the arc frame, and two side support plates are symmetrically provided on the bottom of the support plate along its width direction, each side support plate is connected to a locking bolt by threaded cooperation, and locking plates are installed on the opposite ends of the locking bolts through bearings, and the locking plates A limited sliding column is arranged on the opposite side of the column, and the limited sliding column passes through the side support plate. The limited sliding column can limit the movement of the locking plate, thereby increasing the movement accuracy of the locking plate. The detection mechanism is installed on the upper end of the arc frame on one side. The present invention can use the crossbeam of the steel structure as a support to lock the position, and test the firmness of the column connected to the crossbeam by hammering. First, the arc frame is placed on both sides of the column, and the free ends of the arc frame can be connected, and the support plate is arranged parallel to the crossbeam. By screwing the locking bolt, the inner side surface of the locking plate is locked on the middle side surface of the crossbeam, and the upper end of the locking plate is against the lower side surface of the upper end of the crossbeam. The locking of the locking plate can increase the stability of the present invention and prevent the present invention from shaking, which affects the accuracy of the column firmness detection. The firmness of the column on the crossbeam can be detected by the detection mechanism.

[0007] The detection mechanism comprises an arc-shaped slider connected to the sliding groove by a sliding fit, the arc-shaped slider can slide in the sliding groove, so that the arc-shaped slider can drive the detection mechanism to adjust its position in the structure composed of two arc-shaped frames, a detection support plate is installed on the top of the arc-shaped slider, an adjustment slide groove is arranged in the middle of the upper side surface of the detection support plate along its length direction, a vertically arranged test vertical plate is arranged above the adjustment slide groove, a slider slidingly matched with the adjustment slide groove is arranged on the bottom of the test vertical plate, the side of the test vertical plate away from the arc frame spliced ​​into a ring structure is connected to one end of the adjustment bolt through a bearing, the other end of the adjustment bolt is connected to the adjustment vertical plate by a threaded fit, and the bottom of the adjustment vertical plate is connected to the top of the detection support plate;

[0008] Two telescopic columns are installed on the side of the detection support plate close to the arc frame spliced ​​into a ring structure, the telescopic columns are arranged up and down, and an elastic plate is installed on the end of each telescopic column. A hammer block is set on the side of the elastic plate away from the telescopic column. During specific operation, the detection mechanism can detect the firmness of the column on the crossbeam, slide the arc slider to the middle of the arc frame and lock its position, and drive the test plate to adjust its position by turning the adjusting bolt, so that the distance between the hammer block on the elastic plate and the column is adjusted, thereby adjusting the hammering force of the column by the hammer block. When it is necessary to perform a hammer test on the column, the two telescopic columns are controlled to perform synchronous contraction movement, and the hammer block can be driven to hammer the column through the restoring force of the telescopic column. The firmness of the column can be judged by observing the shaking degree of the column or whether the column can touch the contact plate through manual observation or placing a contact plate on the opposite side of the hammering of the column.

[0009] The method for detecting the connection firmness of a steel structure connection node using the above-mentioned steel structure node firmness detection device comprises the following steps:

[0010] S1. Positioning of the arc frame: First, place the arc frame on both sides of the column connected to the steel structure beam, so that the support plate can be placed parallel to the top of the beam, and the opposite ends of the two arc frames are connected;

[0011] S2. Arc frame locking: By turning the locking bolt, the locking plate can be driven to move inward, so that the inner side of the locking plate can be against the side of the middle part of the beam, and the top of the locking plate can be against the lower side of the upper end of the beam to prevent the arc frame from shaking;

[0012] S3. Testing force adjustment: After the arc frame is locked, the test plate can be driven to slide by turning the adjustment bolt, so that the distance between the test plate and the column on the beam can be adjusted. The telescopic column is pulled outward to make it in a retracted state, and then the telescopic column is loosened to make the hammer block on the elastic plate hammer one side of the column. The deflection of the column is manually observed to judge the firmness of the column;

[0013] S4. Comprehensive inspection of the firmness of the column: After the firmness inspection of one side of the column is completed, the inspection mechanism is slid to the middle of the arc frame on the other side through the arc-shaped slider so that the inspection mechanism can inspect the firmness of the other side of the column.

[0014] As a preferred technical solution of the present invention, the inner side surface of the upper end of the locking plate is an arc-shaped structure, and a supporting cross plate is arranged on the top of the locking plate. Since the steel structure beam is an I-beam or H-beam, the arc-shaped structure of the inner side surface of the upper end of the locking plate can not hinder the inner side surface of the I-beam from fitting to the middle side surface of the I-beam. The supporting cross plate can increase the supporting area of ​​the locking plate on the upper lower side surface of the beam, thereby increasing the stability of the present invention.

[0015] As a preferred technical solution of the present invention, a T-slot is provided on the lower side of the support plate along its length direction, the T-slot passes through the outer side of the support plate, a T-shaped bonding plate is inserted in the T-slot, and an anti-slip pad is provided on the lower side of the bonding plate. The anti-slip pad on the lower side of the bonding plate can increase the stability of the bonding plate, and the bonding plate can be replaced with different thickness models so that the upper side of the supporting cross plate can be against the lower side of the upper end of the beam.

[0016] As a preferred technical solution of the present invention, the end faces of the two arc frames are respectively provided with plug rods and slots that plug into each other. The plug rods and slots cooperate with each other to limit the splicing position of the two arc frames so that the two arc frames can be accurately docked, preventing the detection mechanism from being unable to slide smoothly due to deviation in the docking position of the two arc frames.

[0017] As a preferred technical solution of the present invention, a hydraulic cylinder is distributed between the two telescopic columns, and the fixed end of the hydraulic cylinder is installed on the side of the test vertical plate. A push-pull body is installed on the telescopic end of the hydraulic cylinder. A linkage block of the telescopic structure is arranged at the upper and lower ends of the push-pull body. The positions of the linkage blocks are symmetrically arranged. The linkage blocks are of a trapezoidal structure, and the outer end of the linkage block away from the side of the test vertical plate is an inclined surface. The opposite ends of the two elastic plates and the side close to the test vertical plate are provided with oblique grooves matching the linkage blocks. The two ends of the linkage block are symmetrically provided with folding blocks. The folding blocks are of a triangular structure. The folding blocks pass through the elastic plate. Guide frames are symmetrically provided on both sides of the hydraulic cylinder corresponding to the width direction of the detection support plate. Two guide columns are provided on the end surface of the guide frame close to the elastic plate. The ends of the guide columns It is arranged tilted outward. During operation, the hydraulic cylinder is controlled to perform an extension movement. When the linkage block on the push-pull body contacts the inclined groove on the elastic plate, it can drive the linkage block to retract so that the push-pull body can move to the inner side of the elastic plate. When the linkage block is separated from the elastic plate, it can automatically pop out under the action of its restoring force. Then the hydraulic cylinder is controlled to perform a retraction movement. The linkage block can drive the elastic plate to move outward and retract the telescopic column. When the push-pull body contacts the guide column, the guide column can drive the linkage block to retract through the retraction block. When the push-pull body moves to the middle of the guide column, the linkage block is separated from the elastic plate. Under the action of the telescopic column, the elastic plate drives the hammer block to perform a synchronous hammering action on the column. Through this control method, the present invention can automatically perform a cyclic hammering action on the column.

[0018] As a preferred technical solution of the present invention, a positioning groove is provided on the outer side surface of the upper end of the arc-shaped slider, and a positioning vertical plate is provided at the end of the top of each support plate that is away from the arc frame spliced ​​into a ring structure. The upper part of the positioning vertical plate is connected to the positioning spring column by a sliding fit, and a positioning block that is plug-in fit with the positioning groove is provided at the end of the positioning spring column close to the arc frame. The positioning block can lock the position of the arc-shaped slider under the action of the positioning spring column. When the position of the arc-shaped slider needs to be adjusted, the positioning spring column is pulled outward to move the positioning block out of the positioning groove, so that the position of the arc-shaped slider can be adjusted.

[0019] As a preferred technical solution of the present invention, a scale rod is provided on the inner side surface of the middle part of the arc frame, the inner end of the scale rod is a telescopic structure, and the upper side surface of the telescopic structure of the scale rod is provided with a scale mark, and the scale rod can limit the initial position of the arc frame so that the arc frame can be symmetrically distributed on both sides of the column, and when the arc frames are docked, the telescopic ends on the scale rod are kept at the same scale.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention can be positioned and locked on the crossbeam of the steel structure, and the position is locked by using the crossbeam as a fixed point. The firmness of the column is detected by cyclically hammering the column on the crossbeam. The present invention can adjust the hammering force of the column to prevent the connection of the column from being affected due to excessive hammering force. The present invention can also hammer the column at different positions to increase the effect of the present invention on the firmness detection of the column;

[0022] Second, the laminated plates of the present invention can be replaced with different thicknesses so that the upper side of the supporting horizontal plate can be against the lower side of the upper end of the beam, thereby increasing the stability of the present invention when locked on the beam;

[0023] 3. The ruler rod of the present invention can limit the initial position of the arc frame, so that the arc frame can be symmetrically distributed on both sides of the column. When the arc frame is docked, the telescopic ends on the ruler rod are kept at the same scale;

[0024] Fourth, the present invention controls the telescopic movement of the hydraulic cylinder to drive the linkage block on the push-pull body to control the elastic plate to contract, so that the elastic plate drives the hammer block to perform synchronous hammering action on the column under the action of the telescopic column. Through this control method, the present invention can automatically perform cyclic hammering action on the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a process flow chart of the present invention;

[0027] Figure 2 is a first structural schematic diagram of the present invention;

[0028] Figure 3 is a second structural schematic diagram of the present invention (viewed from right to left);

[0029] Figure 4 It is a schematic diagram of the structure of the arc frame, the support plate, the side support plate, the locking bolt, the locking plate, the arc slide block and the detection support plate of the present invention;

[0030] Figure 5 It is a schematic diagram of the first structure of the detection mechanism of the present invention after the arc-shaped slider is removed;

[0031] Figure 6 It is a second structural schematic diagram of the detection mechanism of the present invention after the arc-shaped slider is removed;

[0032] Figure 7 It is a structural schematic diagram of the present invention when testing the firmness of a steel structure column. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0034] like Figures 2 to 7As shown, a method for detecting the connection firmness of a steel structure connection node is adopted. The method for detecting the connection firmness of a steel structure connection node adopts the following steel structure node firmness detection device, which comprises an arc frame 1, a support plate 2, a side support plate 3, a locking bolt 4, a locking plate 5 and a detection mechanism 6. The number of the arc frames 1 is two, and two arc frames 1 are spliced ​​to form an annular structure. The upper side surface of the arc frame 1 is provided with a sliding groove 11 along its arc structure. The sliding groove 11 runs through the outer end of the arc frame 1, and the cross-section of the sliding groove 11 is a T-shaped structure. A support plate 2 is provided on the lower side surface of the middle part of the arc frame 1, and two side support plates 3 are symmetrically provided along the width direction of the bottom of the support plate 2. The upper side of each side support plate 3 is connected to a locking bolt 4 by threaded cooperation, and the opposite ends of the locking bolt 4 are installed with locking plates 5 through bearings. A limited sliding column 51 is set on the side, and the limited sliding column 51 passes through the side support plate 3. The limited sliding column 51 can limit the movement of the locking plate 5, thereby increasing the movement accuracy of the locking plate 5. The detection mechanism 6 is installed on the upper end of the arc frame 1 on one side. The present invention can use the crossbeam of the steel structure as a support to lock the position, and test the firmness of the column connected to the crossbeam by hammering. First, the arc frame 1 is placed on both sides of the column, and the free ends of the arc frame 1 can be connected, and the support plate 2 is arranged parallel to the crossbeam. By tightening the locking bolt 4, the inner side surface of the locking plate 5 is locked on the middle side surface of the crossbeam, and the upper end of the locking plate 5 is against the lower side surface of the upper end of the crossbeam. The locking of the locking plate 5 can increase the stability of the present invention, prevent the present invention from shaking and affect the accuracy of the column firmness detection, and the column on the beam can be tested for firmness through the detection mechanism 6.

[0035] The end faces of the two arc frames 1 are respectively provided with plug rods 12 and slots 13 that are plugged into each other. The plug rods 12 and slots 13 cooperate with each other to limit the splicing position of the two arc frames 1 so that the two arc frames 1 can be accurately docked, preventing the docking position deviation of the two arc frames 1 from causing the detection mechanism 6 to be unable to slide smoothly.

[0036] A scale rod 14 is provided on the inner side surface of the middle part of the arc frame 1, the inner end of the scale rod 14 is a telescopic structure, and a scale mark is provided on the upper side surface of the telescopic structure of the scale rod 14. The scale rod 14 can limit the initial position of the arc frame 1, so that the arc frame 1 can be symmetrically distributed on both sides of the column. When the arc frame 1 is docked, the telescopic ends on the scale rod 14 are kept at the same scale.

[0037] The lower side surface of the support plate 2 is provided with a T-slot 21 along its length direction, and the T-slot 21 passes through the outer side surface of the support plate 2. A T-shaped bonding plate 22 is inserted in the T-slot 21, and an anti-slip pad is provided on the lower side surface of the bonding plate 22. The anti-slip pad on the lower side surface of the bonding plate 22 can increase the stability of the bonding plate 22. The bonding plate 22 can be replaced with different thickness models so that the upper side surface of the supporting cross plate 52 can be against the lower side surface of the upper end of the beam.

[0038] The inner side surface of the upper end of the locking plate 5 is an arc-shaped structure, and a supporting cross plate 52 is arranged on the top of the locking plate 5. Since the steel structure beam is an I-beam or H-beam, the arc-shaped structure of the inner side surface of the upper end of the locking plate 5 can not hinder the inner side surface of the I-beam from fitting to the middle side surface of the I-beam. The supporting cross plate 52 can increase the supporting area of ​​the locking plate 5 on the upper and lower side surfaces of the beam, thereby increasing the stability of the present invention.

[0039] The detection mechanism 6 includes an arc-shaped slider 61 connected to the sliding groove 11 by a sliding fit, and the arc-shaped slider 61 can slide in the sliding groove 11, so that the arc-shaped slider 61 can drive the detection mechanism 6 to adjust its position in the structure composed of the two arc-shaped frames 1, and a detection support plate 62 is installed on the top of the arc-shaped slider 61, and an adjustment slide groove 63 is arranged in the middle of the upper side surface of the detection support plate 62 along its length direction, and a vertically arranged test vertical plate 64 is arranged above the adjustment slide groove 63, and a slider that slides with the adjustment slide groove 63 is arranged on the bottom of the test vertical plate 64, and the side of the test vertical plate 64 away from the arc frame 1 is connected to one end of the adjustment bolt 65 through a bearing, and the other end of the adjustment bolt 65 is connected to the adjustment vertical plate 66 by a threaded fit, and the bottom of the adjustment vertical plate 66 is connected to the top of the detection support plate 62;

[0040] The detection support plate 62 is provided with two telescopic columns 67 on the side of the arc frame 1 spliced ​​into a ring structure. The telescopic columns 67 are arranged up and down. A spring plate 68 is installed on the end of each telescopic column 67. A hammer block 69 is provided on the side of the spring plate 68 away from the telescopic column 67. When working, the detection mechanism 6 can detect the firmness of the column on the beam, slide the arc slider 61 to the middle of the arc frame 1 and lock its position, and drive the test plate 6 by turning the adjusting bolt 65. 4 is used to adjust the position so that the distance between the hammer block 69 on the elastic plate 68 and the column is adjusted, so that the hammering force of the hammer block 69 on the column is adjusted. When it is necessary to perform a hammer test on the column, the two telescopic columns 67 are controlled to perform synchronous contraction movement, and the hammer block 69 can be driven to hammer the column through the restoring force of the telescopic columns 67. The firmness of the column can be judged by manual observation or placing a contact plate on the opposite side of the column to be hammered, observing the shaking degree of the column or whether the column can touch the contact plate.

[0041] A positioning groove is provided on the outer side surface of the upper end of the arc-shaped sliding block 61, and a positioning vertical plate 23 is provided at the end of the top of each support plate 2 that is spliced ​​into a ring structure away from the arc frame 1. The upper part of the positioning vertical plate 23 is connected to the positioning spring column 24 by a sliding fit. The end of the positioning spring column 24 close to the arc frame 1 is provided with a positioning block 25 that is plugged into the positioning groove. The positioning block 25 can lock the position of the arc-shaped sliding block 61 under the action of the positioning spring column 24. When the position of the arc-shaped sliding block 61 needs to be adjusted, the positioning spring column 24 is pulled outward to move the positioning block 25 out of the positioning groove, so that the position of the arc-shaped sliding block 61 can be adjusted.

[0042] A hydraulic cylinder 641 is distributed between the two telescopic columns 67, and the fixed end of the hydraulic cylinder 641 is installed on the side of the test vertical plate 64. A push-pull body 642 is installed on the telescopic end of the hydraulic cylinder 641. A linkage block 643 of a telescopic structure is provided at the upper and lower ends of the push-pull body 642. The positions of the linkage blocks 643 are symmetrically arranged. The linkage block 643 is a trapezoidal structure, and the outer end of the linkage block 643 away from the test vertical plate 64 is an inclined surface. The opposite ends of the two elastic plates 68 and the side close to the test vertical plate 64 are provided with an inclined groove 644 that matches the linkage block 643. The two ends of the linkage block 643 are symmetrically provided with a folding block 645, which is a triangular structure. The folding block 645 passes through the elastic plate 68. The hydraulic cylinder 641 is symmetrically provided with a guide frame 646 on both sides of the width direction of the corresponding detection support plate 62. Two guide columns 647 are provided on the end surface of the guide frame 646 close to the elastic plate 68, and the end of the guide column 647 is inclined outward. When the push-pull body 642 is in contact with the guide column 647, the guide column 647 can drive the linkage block 643 to retract through the retraction block 645. When the push-pull body 642 is in contact with the inclined groove 644 on the elastic plate 68, the linkage block 643 can be driven to retract, so that the push-pull body 642 can move to the inner side of the elastic plate 68. When the linkage block 643 is separated from the elastic plate 68, it can automatically pop out under the action of its restoring force. Then the hydraulic cylinder 641 is controlled to retract, and the linkage block 643 can drive the elastic plate 68 to move outward and retract the telescopic column 67. When the push-pull body 642 is in contact with the guide column 647, the guide column 647 can drive the linkage block 643 to retract through the retraction block 645. When the push-pull body 642 moves to the middle part of the guide column 647, the linkage block 643 is separated from the elastic plate 68. Under the action of the telescopic column 67, the elastic plate 68 drives the hammer block 69 to perform synchronous hammering action on the column. Through this control method, the present invention can automatically perform cyclic hammering action on the column.

[0043] like Figure 1 As shown, the method for detecting the connection firmness of the steel structure connection node using the above-mentioned steel structure node firmness detection device comprises the following steps:

[0044] S1. Positioning of the arc frame 1: First, place the arc frame 1 on both sides of the column connected to the steel structure beam, so that the support plate 2 can be placed parallel to the top of the beam, and the opposite ends of the two arc frames 1 are connected to each other. The insertion rod 12 and the slot 13 cooperate to make the two arc frames 1 accurately docked, and at this time, keep the telescopic ends on the ruler rod 14 at the same scale;

[0045] S2. Locking the arc frame 1: By turning the locking bolt 4, the locking plate 5 can be driven to move inward, so that the inner side of the locking plate 5 can be against the side of the middle part of the beam, and the laminating plate 22 can be replaced with different thicknesses, so that the upper side of the supporting horizontal plate 52 can be against the lower side of the upper end of the beam to prevent the arc frame 1 from shaking;

[0046] S3, test force adjustment: after the arc frame 1 is locked, the test stand 64 can be driven to slide by turning the adjustment bolt 65, so that the distance between the test stand 64 and the column on the beam can be adjusted, and the telescopic column 67 is pulled outward to make it in a retracted state, and then the telescopic column 67 is loosened to make the hammer block 69 on the elastic plate 68 hammer one side of the column, and the deflection of the column is manually observed to judge the firmness of the column. When it is necessary to automatically perform a cyclic hammer test on the column, the hydraulic cylinder 641 is controlled to perform a hammer test. The push-pull body 642 stretches so that the push-pull body 642 can move to the inner side of the elastic plate 68, and then the hydraulic cylinder 641 is controlled to retract. The linkage block 643 can drive the elastic plate 68 to move outward and make the telescopic column 67 retract. When the push-pull body 642 contacts the guide column 647, the guide column 647 can drive the linkage block 643 to retract through the retracting block 645. When the push-pull body 642 moves to the middle of the guide column 647, the elastic plate 68 drives the hammer block 69 to perform synchronous hammering action on the column under the action of the telescopic column 67.

[0047] S4. Comprehensive inspection of the firmness of the column: After the firmness inspection of one side of the column is completed, pull the positioning spring 24 outward to move the positioning block 25 out of the positioning groove, so that the arc-shaped slider 61 can be adjusted in position, and the detection mechanism 6 is slid to the middle of the arc frame 1 on the other side through the arc-shaped slider 61, and the position of the arc-shaped slider 61 is locked through the positioning block 25 on the other side, so that the detection mechanism 6 can detect the firmness of the other side of the column.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for detecting the connection firmness of a steel structure connection node, the method for detecting the connection firmness of a steel structure connection node adopts the following steel structure node firmness detection device, the steel structure node firmness detection device comprises an arc frame (1), a support plate (2), a side support plate (3), a locking bolt (4), a locking plate (5) and a detection mechanism (6), characterized in that: The number of the arc frames (1) is two, and the two arc frames (1) are spliced ​​to form an annular structure. The upper side surface of the arc frame (1) is provided with a sliding groove (11) along its arc structure, and the sliding groove (11) passes through the outer end of the arc frame (1). The cross section of the sliding groove (11) is a T-shaped structure. A support plate (2) is provided on the lower side surface of the middle part of the arc frame (1), and two side support plates (3) are symmetrically provided at the bottom of the support plate (2) along its width direction. The upper part of each side support plate (3) is connected to a locking bolt (4) by threaded matching. The opposite ends of the locking bolt (4) are provided with locking plates (5) through bearings. A limited sliding column (51) is provided on the opposite side of the locking plate (5), and the limited sliding column (51) passes through the side support plate (3). The detection mechanism (6) is installed on the upper end of the arc frame (1) on one side; wherein: The detection mechanism (6) comprises an arc-shaped slider (61) connected to the sliding groove (11) by a sliding fit, a detection support plate (62) is installed on the top of the arc-shaped slider (61), an adjustment slide groove (63) is arranged in the middle of the upper side surface of the detection support plate (62) along its length direction, a vertically arranged test stand (64) is arranged above the adjustment slide groove (63), a slider slidingly matched with the adjustment slide groove (63) is arranged on the bottom of the test stand (64), the side of the test stand (64) away from the arc frame (1) spliced ​​into a ring structure is connected to one end of the adjustment bolt (65) through a bearing, the other end of the adjustment bolt (65) is connected to the adjustment stand (66) by a threaded fit, and the bottom of the adjustment stand (66) is connected to the top of the detection support plate (62); Two telescopic columns (67) are installed on the side of the detection support plate (62) close to the arc frame (1) spliced ​​into a ring structure. The telescopic columns (67) are arranged up and down. A spring plate (68) is installed on the end of each telescopic column (67). A hammer block (69) is arranged on the side of the spring plate (68) away from the telescopic column (67); The method for detecting the connection firmness of a steel structure connection node using the above-mentioned steel structure node firmness detection device comprises the following steps: S1. Positioning of the arc frame (1): firstly, the arc frame (1) is placed on both sides of the column connected to the steel structure beam, so that the support plate (2) can be placed parallel to the top of the beam, and the opposite ends of the two arc frames (1) are connected to each other; S2. Locking the arc frame (1): by turning the locking bolt (4), the locking plate (5) can be driven to move inward, so that the inner side surface of the locking plate (5) can abut against the side surface of the middle part of the cross beam, and the top of the locking plate (5) abuts against the lower side surface of the upper end of the cross beam, thereby preventing the arc frame (1) from shaking; S3, testing force adjustment: after the arc frame (1) is locked, the test stand (64) can be driven to slide by turning the adjusting bolt (65) so that the distance between the test stand (64) and the column on the crossbeam can be adjusted, and the telescopic column (67) is pulled outward to be in a retracted state, and then the telescopic column (67) is loosened to allow the hammer block (69) on the elastic plate (68) to hammer one side of the column, and the deflection of the column is manually observed to judge the firmness of the column; S4. Comprehensive inspection of the firmness of the column: After the firmness inspection of one side of the column is completed, the inspection mechanism (6) is slid to the middle of the arc frame (1) on the other side through the arc-shaped slide block (61), so that the inspection mechanism (6) can inspect the firmness of the other side of the column.

2. A method for detecting the connection firmness of a steel structure connection node according to claim 1, characterized in that: The inner side surface of the upper end of the locking plate (5) is an arc-shaped structure, and a supporting horizontal plate (52) is arranged on the top of the locking plate (5).

3. A method for detecting the connection firmness of a steel structure connection node according to claim 1, characterized in that: The lower side of the support plate (2) is provided with a T-shaped groove (21) along its length direction, the T-shaped groove (21) passes through the outer side of the support plate (2), a T-shaped bonding plate (22) is inserted into the T-shaped groove (21), and an anti-slip pad is provided on the lower side of the bonding plate (22).

4. A method for detecting the connection firmness of a steel structure connection node according to claim 1, characterized in that: The end surfaces of the two arc-shaped frames (1) are respectively provided with plugging rods (12) and slots (13) which are plugged in and matched with each other.

5. A method for detecting the connection firmness of a steel structure connection node according to claim 1, characterized in that: A hydraulic cylinder (641) is distributed between the two telescopic columns (67), the fixed end of the hydraulic cylinder (641) is installed on the side of the test vertical plate (64), and a push-pull body (642) is installed on the telescopic end of the hydraulic cylinder (641). A linkage block (643) with a telescopic structure is arranged at both the upper and lower ends of the push-pull body (642). The linkage blocks (643) are symmetrically arranged, the linkage blocks (643) are of a trapezoidal structure, and the outer end of the linkage block (643) away from the test vertical plate (64) is an inclined surface, and an inclined groove (644) matching the linkage block (643) is arranged at the opposite end of the two elastic plates (68) and close to the test vertical plate (64).

6. A method for detecting the connection firmness of a steel structure connection node according to claim 5, characterized in that: The linkage block (643) is symmetrically provided with a folding block (645) at both ends. The folding block (645) is a triangular structure. The folding block (645) passes through the elastic plate (68). The hydraulic cylinder (641) is symmetrically provided with a guide frame (646) on both sides of the width direction of the corresponding detection support plate (62). Two guide columns (647) are provided on the end surface of the guide frame (646) close to the elastic plate (68), and the ends of the guide columns (647) are arranged to be inclined outward.

7. A method for detecting the connection firmness of a steel structure connection node according to claim 1, characterized in that: The outer side surface of the upper end of the arc-shaped sliding block (61) is provided with a positioning groove, and the top of each support plate (2) is provided with a positioning vertical plate (23) at one end away from the arc-shaped frame (1) spliced ​​into a ring structure, and the upper part of the positioning vertical plate (23) is connected to the positioning spring column (24) by a sliding fit, and the end of the positioning spring column (24) close to the arc-shaped frame (1) is provided with a positioning block (25) that is plugged into the positioning groove.

8. A method for detecting the connection firmness of a steel structure connection node according to claim 1, characterized in that: A scale rod (14) is arranged on the inner side surface of the middle part of the arc frame (1), the inner end of the scale rod (14) is a telescopic structure, and a scale mark is arranged on the upper side surface of the telescopic structure of the scale rod (14).

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