Method for detecting connection firmness of steel structure connection nodes
Technical Field
The invention relates to the technical field of steel structures, in particular to a method for detecting connection firmness of steel structure connection nodes.
Background
The steel structure engineering is mainly made of steel, mainly comprises steel beams, steel columns, steel trusses and other components made of steel sections, steel plates and the like, and the components or parts are connected by welding seams, bolts or rivets, so that the steel structure engineering is one of main building structure types. The structural connection node refers to a connection joint position between steel structures, such as connection of upright posts on a beam, and the beam of the steel structure is usually I-steel or H-steel.
After the stand on the crossbeam is connected, need detect the fastness of stand, the stand detects the time spent generally through locking test machine on the crossbeam to adopt the mode of beating or hammering to carry out the fastness to the stand and detect, the problem that exists when carrying out the fastness to the stand on the steel construction crossbeam now is as follows:
1. the connection stability of the testing machine and the steel structure cross beam is poor, so that the firmness detection effect of the upright post is poor, and the hammering force of the testing machine on the steel structure upright post is complicated to adjust, so that the stability detection efficiency of the upright post is affected;
2. The test machine can not freely hammer the steel structure upright post at different positions, and the detection forces of the upright posts corresponding to the two sides of the length direction of the cross beam can not be kept consistent, so that the detection precision of the upright posts is low.
Disclosure of Invention
In order to solve the problems, the invention provides a steel structure connecting node connection firmness detection method, which adopts a steel structure node connection firmness detection device, wherein the steel structure node connection firmness detection device comprises arc frames, support plates, side support plates, locking bolts, locking plates 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 the arc structure, the sliding groove penetrates through the outer end of the arc frame, the section of the sliding groove is of a T-shaped structure, the lower side surface of the middle part of the arc frame is provided with the support plate, the bottom of the support plate is symmetrically provided with the two side support plates along the width direction of the support plate, the upper part of each side support plate is connected with one locking bolt in a threaded fit manner, the opposite ends of the locking bolts are provided with the locking plates through bearings, the invention can lock the position by taking the beam with a steel structure as a support and perform a firmness test on the upright post connected with the beam in a hammering mode, firstly, the arc-shaped frames are placed on two sides of the upright post, the free ends of the arc-shaped frames can be butted, the supporting plates are arranged parallel to the beam, the inner side surface of the locking plate is locked on the middle side surface of the beam by screwing the locking bolt, the upper end of the locking plate is propped against the lower side surface of the upper end of the beam, the stability of the invention can be improved by locking the locking plate, the accuracy of the firmness test of the upright post is prevented from being influenced by shaking, can carry out the fastness detection to the stand on the crossbeam through detection mechanism.
The detection mechanism comprises an arc-shaped sliding block connected to the sliding groove in a sliding fit mode, the arc-shaped sliding block can slide in the sliding groove, the arc-shaped sliding block can drive the detection mechanism to carry out position adjustment in a structure formed by two arc-shaped frames, a detection support plate is arranged on the top of the arc-shaped sliding block, an adjusting chute is arranged in the middle of the upper side face of the detection support plate along the length direction of the detection support plate, a vertically arranged test vertical plate is arranged above the adjusting chute, a sliding block in sliding fit with the adjusting chute is arranged on the bottom of the test vertical plate, the side face, which is far away from the arc-shaped frames and spliced into an annular structure, of the test vertical plate is connected with one end of an adjusting bolt in a threaded fit mode, and the other end of the adjusting bolt is connected to the adjustment vertical plate;
The detection extension board be close to the arc frame and splice into two flexible posts on the side of annular structure, arrange from top to bottom, all install a spring plate on the end of every flexible post, be provided with hammering piece on the side of flexible post is kept away from to the spring plate, specific during operation, detection mechanism can carry out the fastness detection to the stand on the crossbeam, slide arc slider to the middle part of arc frame and carry out the position locking with it, can drive test riser through screwing adjusting bolt and carry out the position adjustment, distance between hammering piece and the stand on the spring plate is adjusted, thereby hammering piece adjusts the hammering dynamics of stand, when needs are to the stand to hammer the test, control two flexible posts and carry out synchronous shrink motion, can drive hammering piece to the stand through the restoring force of flexible post and hammer, through artifical observation or place the contact plate in the opposite side of stand hammering, observe the degree of rocking of stand or whether the stand can touch the contact plate and judge the fastness of stand.
The method for detecting the connection firmness of the steel structure connecting nodes by adopting the steel structure node firmness detection device comprises the following steps:
s1, positioning arc frames, namely firstly placing the arc frames on two sides of an upright post connected with a steel structure beam, so that a supporting plate can be placed on the top of the beam in parallel, and the opposite ends of the two arc frames are butted;
S2, locking the arc-shaped frame, namely driving the locking plate to move inwards by screwing the locking bolt so that the inner side surface of the locking plate can be propped against the side surface of the middle part of the cross beam, and the top of the locking plate is propped against the lower side surface of the upper end of the cross beam, so that the arc-shaped frame is prevented from shaking;
S3, detecting force adjustment, namely after the arc-shaped frame is locked, driving the test vertical plate to slide by screwing the adjusting bolt so as to adjust the distance between the test vertical plate and the upright post on the beam, pulling the telescopic column outwards to enable the telescopic column to be in a contracted state, loosening the telescopic column to enable the hammering block on the bouncing plate to hammer one side of the upright post, and manually observing the deflection condition of the upright post to judge the firmness of the upright post;
S4, the firmness of the upright post is comprehensively detected, namely after the firmness of one side of the upright post is detected, the detection mechanism is slid to the middle part of the arc-shaped frame of the other side through the arc-shaped sliding block, so that the detection mechanism can detect the firmness of the other side of the upright post.
As a preferable technical scheme of the invention, the inner side surface of the upper end of the locking plate is of an arc structure, and the top of the locking plate is provided with the supporting transverse plate, and the steel structure transverse beam is I-steel or H-steel, so that the arc structure of the inner side surface of the upper end of the locking plate can not obstruct the inner side surface of the I-steel to be attached to the middle side surface of the I-steel, the supporting transverse plate can increase the supporting area of the locking plate to the lower side surface of the upper end of the transverse beam, and the stability of the locking plate is improved.
As a preferable technical scheme of the invention, the lower side surface of the supporting plate is provided with the T-shaped groove along the length direction, the T-shaped groove penetrates through the outer side surface of the supporting plate, the T-shaped groove is internally inserted with the laminating plate with the T-shaped structure, the lower side surface of the laminating plate is provided with the anti-slip pad, the stability of the laminating plate can be improved by the anti-slip pad on the lower side surface of the laminating plate, and the laminating plate can be replaced in different thickness types, so that the upper side surface of the supporting transverse plate can be propped against the upper end lower side surface of the transverse beam.
As a preferable technical scheme of the invention, the end faces of the two arc-shaped frames are respectively provided with the inserted rod and the slot which are mutually inserted and matched, and the inserted rod and the slot are matched to limit the splicing position of the two arc-shaped frames so as to accurately butt the two arc-shaped frames and prevent the detection mechanism from being incapable of smoothly sliding due to the deviation of the butt joint positions of the two arc-shaped frames.
As a preferred technical scheme of the invention, a hydraulic cylinder is distributed between two telescopic columns, the fixed end of the hydraulic cylinder is arranged on the side surface of the test vertical plate, a push-pull body is arranged on the telescopic end of the hydraulic cylinder, the upper end and the lower end of the push-pull body are both provided with a telescopic structure of linkage blocks, the linkage blocks are symmetrically arranged at positions, the linkage blocks are of trapezoid structures, the outer ends of one side of the linkage blocks far away from the test vertical plate are inclined surfaces, the opposite ends of the two elastic plates are provided with inclined grooves matched with the linkage blocks, the two ends of the linkage blocks are symmetrically provided with drawing blocks, the drawing blocks are of triangular structures, the drawing blocks penetrate through the elastic plates, the two sides of the hydraulic cylinder corresponding to the width direction of the detection support plate are symmetrically provided with guide columns, the end surfaces of the guide frames close to the elastic plates are provided with two guide columns, the tail ends of the guide columns are outwards inclined, and are controlled to perform extension motion in a specific working process, the linkage blocks on the hydraulic cylinder, the push-pull blocks can be driven to contract when contacting with the elastic plates, so that the inner sides of the two elastic blocks can move to the elastic plates and the elastic plates can be driven to automatically separate from the elastic plates, and then the elastic plates can be driven to automatically contract through the guide blocks to the guide columns to the telescopic blocks when the elastic blocks are contacted with the elastic plates.
As a preferable technical scheme of the invention, a positioning groove is formed in the outer side surface of the upper end of the arc-shaped sliding block, a positioning vertical plate is arranged at one end, away from the arc-shaped frame, of each supporting plate, which is spliced into an annular structure, the upper part of the positioning vertical plate is connected with a positioning spring column in a sliding fit mode, a positioning block which is spliced and matched with the positioning groove is arranged at one end, close to the arc-shaped frame, of the positioning spring column, the positioning block can lock the position of the arc-shaped sliding block under the action of the positioning spring column, and when the arc-shaped sliding block needs to be subjected to position adjustment, the positioning spring column is pulled outwards, so that the positioning block is moved out of the positioning groove, and the arc-shaped sliding block can be subjected to position adjustment.
As a preferable technical scheme of the invention, the inner side surface of the middle part of the arc-shaped frame is provided with the scale rod, the inner end of the scale rod is of a telescopic structure, the upper side surface of the scale rod telescopic structure is provided with scale marks, the scale rod can limit the initial position of the arc-shaped frame, the arc-shaped frame can be symmetrically distributed on two sides of the upright post, and when the arc-shaped frame is in butt joint, the telescopic ends on the scale rod are kept at the same scale.
The invention has the beneficial effects that:
1. The invention can be positioned and locked on the beam of the steel structure, and position locking is carried out by taking the beam as a fixed point, and the firmness degree of the upright post is detected by circularly hammering the upright post on the beam;
2. The bonding plate can be replaced in different thickness types, so that the upper side surface of the supporting transverse plate can be propped against the lower side surface of the upper end of the cross beam, and the stability of the bonding plate locked on the cross beam is improved;
3. the scale rod can limit the initial position of the arc-shaped frame, so that the arc-shaped frame can be symmetrically distributed on two sides of the upright post, and when the arc-shaped frames are in butt joint, the telescopic ends on the scale rod are kept at the same scale;
4. According to the invention, the telescopic movement of the hydraulic cylinder is controlled, the linkage block on the push-pull body is driven to control the spring plate to shrink, so that the spring plate drives the hammering block to synchronously hammer the column under the action of the telescopic column, and the column can be automatically subjected to cyclic hammering action by the control mode.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a first structural schematic of the present invention;
FIG. 3 is a second schematic view of the present invention (from right to left);
FIG. 4 is a schematic view of the structure between the arc-shaped frame, the support plate, the side support plates, the locking bolts, the locking plates, the arc-shaped sliding blocks and the detection support plates;
FIG. 5 is a schematic view of a first configuration of the detection mechanism of the present invention after removal of the arcuate slide;
FIG. 6 is a schematic view of a second configuration of the detection mechanism of the present invention after removal of the arcuate slide;
fig. 7 is a schematic view of the structure of the present invention when the steel structure column is subjected to the firmness detection.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
As shown in fig. 2 to 7, a steel structure connection node connection firmness detection method is provided, which adopts a steel structure node connection firmness detection device, the steel structure node connection firmness detection device comprises an arc-shaped frame 1, a support plate 2, side support plates 3, locking bolts 4, locking plates 5 and a detection mechanism 6, the number of the arc-shaped frames 1 is two, the two arc-shaped frames 1 are spliced to form an annular structure, the upper side surface of the arc-shaped frame 1 is provided with sliding grooves 11 along the arc-shaped structure, the sliding grooves 11 penetrate through the outer end of the arc-shaped frame 1, the cross section of the sliding grooves 11 is of a T-shaped structure, the lower side surface of the middle part of the arc-shaped frame 1 is provided with a support plate 2, the bottom of the support plate 2 is symmetrically provided with two side support plates 3 along the width direction, the upper part of each side support plate 3 is connected with one locking bolt 4 in a threaded fit manner, the opposite ends of the locking bolts 4 are provided with locking plates 5 through bearings, opposite side surfaces of the locking plates 5 are provided with limiting sliding columns 51, the limiting sliding columns 51 penetrate through the side support plates 3, the limiting sliding columns 51 can limit the movement of the locking plates 5, the movement precision of the locking plates 5 is increased, the detection mechanism 6 is arranged at the upper end of the arc-shaped frame 1 on one side, the invention can carry out position locking by taking a steel-structure beam as a support, and a firmness test on a stand column connected with the beam in a hammering manner, firstly, the arc-shaped frame 1 is arranged at two sides of the stand column, the free ends of the arc-shaped frames 1 can be butted, the supporting plates 2 are arranged parallel to the beam, the inner side surfaces of the locking plates 5 are locked on the middle side surfaces of the beam by screwing the locking bolts 4, the upper ends of the locking plates 5 are propped against the lower side surfaces of the upper ends of the beam, the stability of the invention can be increased by locking of the locking plates 5, the invention can prevent the shaking from affecting the accuracy of the upright post firmness detection, and the upright post on the cross beam can be subjected to the firmness detection through the detection mechanism 6.
Two arc frame 1's terminal surface on be provided with grafting complex inserted bar 12 and slot 13 each other respectively, inserted bar 12 and slot 13 cooperate and can carry out spacingly to the concatenation position of two arc frames 1 to two arc frames 1 are accurate dock, prevent that two arc frames 1 dock position deviation from causing detection mechanism 6 to be unable to carry out smooth and easy slip.
The middle part medial surface of arc frame 1 on be provided with scale pole 14, the inner of scale pole 14 is extending structure, and scale pole 14 extending structure's last side is provided with the scale sign, scale pole 14 can carry out spacingly to the initial position of arc frame 1 for arc frame 1 can the symmetric distribution in the both sides of stand, when arc frame 1 dock, keep the flexible end on the scale pole 14 to be in the same scale.
The downside of backup pad 2 be provided with T type groove 21 along its length direction, T type groove 21 runs through the lateral surface of backup pad 2, alternates in the T type groove 21 has the laminating board 22 of T type structure, is provided with the slipmat on the downside of laminating board 22, the slipmat of laminating board 22 downside can increase the stability of laminating board 22, laminating board 22 can carry out the change of different thickness models to the upside of supporting diaphragm 52 can support on the upper end downside of crossbeam.
The inner side surface of the upper end of the locking plate 5 is of an arc-shaped structure, and the supporting transverse plate 52 is arranged on the top of the locking plate 5, and the steel structure transverse beam is I-steel or H-steel, so that the arc-shaped structure of the inner side surface of the upper end of the locking plate 5 can not obstruct the inner side surface of the I-steel to be attached to the middle side surface of the I-steel, and the supporting transverse plate 52 can increase the supporting area of the locking plate 5 to the lower side surface of the upper end of the transverse beam, so that the stability of the invention is improved.
The detection mechanism 6 comprises an arc-shaped sliding block 61 connected to the sliding groove 11 in a sliding fit mode, the arc-shaped sliding block 61 can slide in the sliding groove 11, the arc-shaped sliding block 61 can drive the detection mechanism 6 to carry out position adjustment in a structure formed by two arc-shaped frames 1, a detection support plate 62 is arranged on the top of the arc-shaped sliding block 61, an adjusting chute 63 is arranged in the middle of the upper side surface of the detection support plate 62 along the length direction of the detection support plate, a vertically arranged test vertical plate 64 is arranged above the adjusting chute 63, a sliding block in sliding fit with the adjusting chute 63 is arranged on the bottom of the test vertical plate 64, one end of an adjusting bolt 65 is connected with a side surface of the adjusting bolt 64, which is far away from the arc-shaped frame 1 and spliced into an annular structure, of the side surface of the adjusting bolt 65 is connected with the adjusting vertical plate 66 in a threaded fit mode, and the bottom of the adjusting vertical plate 66 is connected with the top of the detection support plate 62;
The detection extension board 62 be close to arc frame 1 and splice into annular structure's side on install two flexible posts 67, arrange from top to bottom flexible posts 67, all install a bullet board 68 on the end of every flexible post 67, be provided with hammering block 69 on the side that flexible post 67 was kept away from to bullet board 68, the during specific work, detection mechanism 6 can carry out the fastness detection to the stand on the crossbeam, slide arc slider 61 to arc frame 1's middle part and carry out the position locking with it, can drive test riser 64 through screwing adjusting bolt 65 and carry out position adjustment, distance between hammering block 69 on bullet board 68 and the stand is adjusted, thereby hammering block 69 adjusts the hammering dynamics of stand, when needs carry out hammering test to the stand, control two flexible posts 67 carry out synchronous shrink motion, can drive hammering block 69 through the restoring force of flexible post 67 and hammer the stand, observe or place the contact plate in the opposite side of stand hammering through the manual work, observe the degree of rocking of stand or stand can touch the fastness that the contact plate judges.
The upper end lateral surface of arc slider 61 be provided with the constant head tank, the one end that arc frame 1 concatenation was kept away from to the top of every backup pad 2 is provided with location riser 23, the last mode that passes through sliding fit of location riser 23 is connected with location bullet post 24, the one end that location bullet post 24 is close to arc frame 1 is provided with and inserts complex locating piece 25 with the constant head tank, locating piece 25 can lock the position of arc slider 61 under the effect of location bullet post 24, when arc slider 61 need carry out position control, outwards stimulate location bullet post 24 for locating piece 25 shifts out in the constant head tank, makes arc slider 61 carry out position control.
A hydraulic cylinder 641 is distributed between the two telescopic columns 67, the fixed end of the hydraulic cylinder 641 is arranged on the side surface of the test vertical plate 64, a push-pull body 642 is arranged on the telescopic end of the hydraulic cylinder 641, the upper end and the lower end of the push-pull body 642 are both provided with a linkage block 643 with a telescopic structure, the positions of the linkage block 643 are symmetrically arranged, the linkage block 643 is of a trapezoid structure, the outer end of one side of the linkage block 643 far away from the test vertical plate 64 is an inclined surface, the opposite ends of the two springing plates 68 and one side close to the test vertical plate 64 are provided with a chute 644 matched with the linkage block 643, the two ends of the linkage block 643 are symmetrically provided with a folding block 645, the folding block 645 is of a triangle structure, the folding block 645 passes through the springing plate 68, the two sides of the hydraulic cylinder 641 corresponding to the width direction of the detection support plate 62 are symmetrically provided with guide frames 646, the end surfaces of the guide frames 646 close to the springing plate 68 are provided with two guide columns 647, the tail end of the guide post 647 is arranged outwards in an inclined way, when the guide post 647 is specifically working, the hydraulic cylinder 641 is controlled to perform extension movement, when the linkage block 643 on the push-pull body 642 is contacted with the chute 644 on the spring plate 68, the linkage block 643 can be driven to contract, so that the push-pull body 642 can move to the inner side of the spring plate 68, the linkage block 643 can automatically pop out under the action of restoring force when being separated from the spring plate 68, then the hydraulic cylinder 641 is controlled to perform contraction movement, the linkage block 643 can drive the spring plate 68 to outwards move and enable the telescopic post 67 to contract, when the push-pull body 642 is contacted with the guide post 647, the guide post 647 can drive the linkage block 643 to contract through the contraction block 645, when the push-pull body 642 moves to the middle part of the guide post 647, the linkage block 643 is separated from the spring plate 68, the spring plate 68 drives the hammering block 69 to synchronously hammer the guide post under the action of the telescopic post 67, by means of the control mode, the invention can automatically perform cyclic hammering actions on the upright post.
As shown in fig. 1, the method for detecting the connection firmness of the steel structure connection nodes by adopting the steel structure node firmness detection device comprises the following steps:
s1, positioning the arc-shaped frames 1, namely firstly placing the arc-shaped frames 1 on two sides of an upright post connected with a steel structure beam, enabling a supporting plate 2 to be placed on the top of the beam in parallel, butting opposite ends of the two arc-shaped frames 1, enabling the two arc-shaped frames 1 to be in accurate butting by matching the inserting rod 12 with the inserting slot 13, and keeping the telescopic ends on the scale rod 14 at the same scale;
S2, the arc-shaped frame 1 is locked, namely the locking bolt 4 is screwed to drive the locking plate 5 to move inwards, so that the inner side surface of the locking plate 5 can be propped against the side surface of the middle part of the cross beam, the attaching plate 22 can be replaced with different thickness types, so that the upper side surface of the supporting cross plate 52 can be propped against the lower side surface of the upper end of the cross beam, and the arc-shaped frame 1 is prevented from shaking;
S3, detecting force adjustment, namely after the arc-shaped frame 1 is locked, the test vertical plate 64 can be driven to slide by screwing the adjusting bolt 65 so that the distance between the test vertical plate 64 and the upright post on the beam is adjusted, the telescopic column 67 is pulled outwards to be in a contracted state, then the telescopic column 67 is loosened so that the hammering block 69 on the elastic plate 68 hammers one side of the upright post, the deflection condition of the upright post is observed manually to judge the firmness of the upright post, when the upright post is required to be automatically subjected to cyclic hammering test, the hydraulic cylinder 641 is controlled to perform extension movement so that the push-pull body 642 can move to the inner side of the elastic plate 68, then the hydraulic cylinder 641 is controlled to perform contraction movement, the linkage block 643 can drive the elastic plate 68 to move outwards and enable the telescopic column 67 to contract, when the push-pull body 642 is contacted with the guide column 647, the guide column 647 can drive the hammering block 643 to contract through the folding block 645, and when the push-pull body 642 moves to the middle part of the guide column 647, the elastic plate 68 drives the hammering block 69 to perform opposite synchronous action under the action of the telescopic column 67;
s4, comprehensively detecting the firmness of the upright post, namely after the firmness of one side of the upright post is detected, pulling the positioning spring column 24 outwards to enable the positioning block 25 to move out of the positioning groove, enabling the arc-shaped sliding block 61 to perform position adjustment, enabling the detection mechanism 6 to slide to the middle of the arc-shaped frame 1 on the other side through the arc-shaped sliding block 61, and locking the position of the arc-shaped sliding block 61 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 upright post.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.