CN117488963B - Continuous collapse resistant node substructure component and method thereof - Google Patents
Continuous collapse resistant node substructure component and method thereof Download PDFInfo
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- CN117488963B CN117488963B CN202410003926.XA CN202410003926A CN117488963B CN 117488963 B CN117488963 B CN 117488963B CN 202410003926 A CN202410003926 A CN 202410003926A CN 117488963 B CN117488963 B CN 117488963B
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 230000001502 supplementing effect Effects 0.000 claims abstract description 13
- 230000008093 supporting effect Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 10
- 238000010008 shearing Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000008260 defense mechanism Effects 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 230000007123 defense Effects 0.000 abstract description 4
- 230000000670 limiting effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Abstract
The invention discloses a continuous collapse resistant node substructure component and a method thereof, and relates to the field of continuous collapse resistance of steel frame structures. According to the invention, the locking fixing piece is arranged, the rectangular block is inserted into the rectangular limiting groove to realize the pre-fixing of the position supplementing plate, the prestress steel strand is positioned through the locking bolt, when the failure middle column is subjected to excessive load, the prestress steel strand based on the secondary defense design concept is gradually straightened from a loose state to participate in stress and deformation, an alternative path is provided for the structural member to resist continuous collapse, the prestress steel strand is arranged to enable the substructure to deform and develop uniformly, the beams on the left side and the right side are symmetrically deformed, a two-force pull rod effect is formed, the catenary resistance internal energy is greatly improved, the continuous collapse probability of the beam column structure is effectively reduced, and the safety of the integral structure of the steel frame is improved.
Description
Technical Field
The invention relates to the field of continuous collapse resistance of steel frame structures, in particular to a continuous collapse resistance node substructure component and a method thereof.
Background
The node connection technology of the beam column is the core technology in the assembled steel frame structure system, and the node performance of the connection structure plays a very important role in controlling the performance of the whole system, so that the node is a soft rib of the steel frame structure for resisting accidental load and impact load, and the structure is collapsed once the bearing capacity of the node is lost.
The existing beam column node structure is low in safety reserve under the action of special load, once the beam column node structure is subjected to larger load, the loss of the bearing capacity of a key bearing column or a key node is extremely easy to occur, and further continuous collapse is caused, so that serious casualties and property loss can be caused due to the continuous collapse of the structure, and great social influence can be brought.
Disclosure of Invention
The invention aims at: in order to solve the problem that the existing beam column node is easy to cause continuous collapse when the bearing capacity is lost, the node substructure component resistant to continuous collapse and the method thereof are provided.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a node substructure component that anti continuous collapse, includes the center post that loses efficacy, the apron is installed at the top of center post that loses efficacy, adopts bolt to weld mixed connection between shear plate, girder, end plate, the hinge support, the girder is kept away from the one end of center post that loses efficacy is provided with the end plate, there is the hinge support through bolted connection on the end plate, the inside wall of girder is provided with the right-angle plate, be provided with locking mounting on the right-angle plate, the right-angle plate is connected with the prestressing force stranded conductor through locking mounting, the both ends of prestressing force stranded conductor are provided with the ground tackle, offer the draw-in groove that is located right-angle plate one side on the girder, the guide arm is installed to the inboard of draw-in groove, sliding connection has the second slider on the guide arm, the both sides of second slider are provided with U type clamp plate, the right-angle plate is kept away from one side of draw-in groove and is installed the second link, be provided with the first link that extends to the girder below on the second link, the bottom of first link is provided with the locating plate, the bottom of second slider is provided with the prestressing force stranded conductor and warning unit that links with the bending unit;
the locking fixing piece comprises a U-shaped slot formed in a right angle part of a right angle plate, a triangular gusset plate is arranged at the right angle part of the right angle plate, a rectangular limit groove which is arranged side by side with the U-shaped slot is formed in one end of the right angle plate, a rectangular block is inserted into the inner side of the rectangular limit groove, a position supplementing plate is arranged at one end of the rectangular block, a position locking bolt connected with the right angle plate is arranged on the position supplementing plate, a magnetic attraction block is arranged at one end, far away from the position supplementing plate, of the rectangular block, and an arc-shaped position clamping block positioned at the inner side of the U-shaped slot is arranged on the position supplementing plate;
the utility model provides a buckle warning part, including installing in the second slider bottom and being located the first slider of girder below, install the inserted bar that runs through the locating plate on the first slider, be provided with on the locating plate with first slider link to each other and be located the telescopic spring in the inserted bar outside, the movable block is installed to the one end that first slider was kept away from to the inserted bar, be provided with the inclined rail on the movable block, peg graft in the bottom of locating plate has the gag lever post, the bottom mounting of gag lever post has the U type movable frame that is located the locating plate outside, be provided with the shifting pin with inclined rail sliding connection on the U type movable frame, the shielding hood is installed to the bottom of U type movable frame, one side of locating plate is provided with the sideframe board that is located the inserted bar below, install the connection storehouse on the sideframe board, the bottom of connection storehouse is installed the siphunculus, the separation mouth has been seted up on the siphunculus, the top of connection storehouse is provided with the locating rack, the inboard of locating rack is connected with the rotation axis through the bearing rotation, install the toper cover on the rotation axis, the bottom of rotation axis is located the rotation board that connects.
As still further aspects of the invention: and the failure center column is also provided with a right-angle plate, and the two ends of the prestress steel strand are limited by the failure center column and the right-angle plate on the main beam through locking fixing pieces.
As still further aspects of the invention: the horizontal height of the right angle plate is smaller than the horizontal height of the transverse central axis of the main beam.
As still further aspects of the invention: the radian of the arc-shaped clamping block is equal to the radian of the bending part of the U-shaped groove, and the diameter of the arc-shaped clamping block is smaller than that of the anchor.
As still further aspects of the invention: the diameter at siphunculus top is less than the diameter at siphunculus bottom, the quantity of toper cover, rotor plate all is provided with a plurality of, and a plurality of toper covers, rotor plate are along the centre of a circle equidistance distribution of rotation axis.
As still further aspects of the invention: the locking unit comprises a supporting plate arranged at the bottom of the positioning plate, a clamping pin is inserted on the supporting plate, the bottom end of the clamping pin is connected with a fixed plate, a reset spring connected with the bottom of the supporting plate is arranged at the top of the fixed plate, and a locking hole is formed in the inserted rod.
As still further aspects of the invention: the diameter size of the clamping pin is equal to that of the locking hole, and the top of the clamping pin is rotationally connected with a ball through a bearing.
The invention also discloses a method for resisting continuous collapse, which adopts the node substructure component for resisting continuous collapse and comprises the following steps:
s1: when the component is assembled, firstly, the failure center pillar, the shearing plate, the main beam, the end plate and the hinge support are connected in a bolt welding mode, firstly, the main beam flange and the web plate are welded on the left side and the right side of the failure center pillar, then the shearing plate is welded on the left side and the right side of the failure center pillar, finally, a bolt penetrates through the shearing plate to be connected with the main beam web plate, and a nut is screwed down, and the connection mode is called bolt welding hybrid connection;
s2: the worker selects a prestress steel strand with the length smaller than the length of the main beam and larger than the distance between the right angle plate and the cover plate according to the length of the main beam, then the prestress steel strand is installed and limited by manually operating a locking fixing piece, tensioning prestress is carried out by matching an oil pump with a jack, and a U-shaped pressing plate is positioned between the right angle plate and an anchorage device;
s3: when the middle column of the failure middle column fails, the load born by the middle column moves downwards, meanwhile, the girder deforms due to the compression of the failure middle column, at the moment, the connecting joint between the girder and the failure middle column is subjected to larger load, the failure of the failure middle column causes the continuous collapse of the peripheral multi-truss frame structure, the prestress steel strand is straightened due to the deformation of the girder, and at the same time, after the node substructure of the girder is failed, the prestress steel strand of the second defense mechanism is started and provides axial tension;
s4: meanwhile, the U-shaped pressing plate moves towards the right angle plate due to the straightening of the prestress steel strand, so that the buckling warning piece is operated, the buckling warning piece and the buckling unit are matched to enable the position of the deformed main beam to generate sound, the warning sound is used for indicating the start of the prestress steel strand of the second anti-continuous collapse line, and collapse damage of the steel frame structure can be delayed.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up locking mounting, make the magnetism piece of inhaling on the rectangle piece laminate with the inner wall of rectangle spacing groove under the effect of suction force through inserting the rectangle piece into the rectangle spacing groove, thereby realize the pre-fixing to the mending board, arc screens piece just can shelter from U type grooved opening part this moment, thereby increase the stability of prestressing force steel strand wires, when the inefficacy center pillar receives the too big load, prestressing force steel strand wires based on the design theory of secondary defense are straightened by relaxation state gradually and participate in atress and deformation, provide the alternative route for component anti continuity collapse, the setting of prestressing force steel strand wires makes substructure deformation develop evenly, left and right sides roof beam symmetry warp, form the two-force pull rod effect, effectively reduce the probability that beam column structure collapses in succession, improve steel frame overall structure's security;
2. through setting up the warning part that bends, when U type clamp plate moves towards the right-angle plate under the pulling action of ground tackle, the inserted bar moves towards the locating plate under the drive of first slider, the telescopic spring receives the extrusion and contracts this moment, move the movable block along with the inserted bar and drive the oblique guide rail and move, the oblique guide rail pulls upwards U type movable frame through the shifting pin this moment, the shielding hood loses shielding to the connection storehouse top this moment, when the wind blows the top of connection storehouse, the toper cover just rotates relative to the locating rack, the rotor plate just rotates this moment, so the velocity of air in connection storehouse increases, the air of siphunculus bottom just discharges from the top of connection storehouse through the siphunculus this moment, the sound appears through the reposition of redundant personnel of separating the mouth when making the air current get into the siphunculus, warning sound appears and is predicted to resist the second way anti-line prestressed steel strand wires and starts, can delay the collapse of steel frame structure and destroy, make people have sufficient time and reduce the continuous collapse of many pin frames around, avoid unnecessary to flee from the reinforcement pipe, the life-over of the spare part is also important to be replaced in later period;
3. through setting up the padlock unit, along with the increase of girder deformation volume, first slider removes towards the locating plate, when the hole of locking moves to the top of screens round pin along with the removal of inserted bar, the screens round pin just can insert the downthehole of locking under reset spring elastic restoring force effect, so alright spacing to the inserted bar, it is fixed when moving to the highest department to make U type fly frame through spacing to the inserted bar, so alright make the shielding cover lose completely to connecting the shielding of storehouse top, thereby make the siphunculus continuously make the sound, thereby reach warning and the prophetic effect that the second line of defense started.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the connection of the second slider to the main beam according to the present invention;
FIG. 3 is a schematic diagram illustrating the connection between the second slider and the positioning plate according to the present invention;
FIG. 4 is a schematic illustration of the connection of the insert pin to the pallet of the present invention;
FIG. 5 is a schematic diagram of the connection of the fan shield and the connection bin of the present invention;
FIG. 6 is a schematic view of the structure of the connecting bin of the present invention;
FIG. 7 is a schematic diagram of the connection of a right angle plate and a prestressed steel strand according to the present invention;
FIG. 8 is a schematic diagram illustrating the connection of the right angle plate and the patch panel according to the present invention.
In the figure: 1. failure of the center post; 2. a cover plate; 3. a main beam; 4. a shear plate; 5. an end plate; 6. a hinged support; 601. a right angle plate; 602. an anchor; 603. a first slider; 604. prestress steel strand; 605. a first connection frame; 606. a clamping groove; 607. a guide rod; 608. a U-shaped pressing plate; 609. a magnetic suction block; 610. a rod; 611. a telescopic spring; 612. a side frame plate; 613. a through pipe; 614. triangular support plates; 615. a second connecting frame; 616. a second slider; 617. an arc-shaped clamping block; 618. u-shaped grooving; 619. a position compensating plate; 620. a movable block; 621. a supporting plate; 622. a positioning plate; 623. a U-shaped movable frame; 624. a limit rod; 625. a separation port; 626. a wind shield; 627. an inclined guide rail; 628. a capture hole; 629. a clamping pin; 630. a return spring; 631. a fixed plate; 632. a connecting bin; 633. a shift pin; 634. a rotation shaft; 635. a positioning frame; 636. a conical cover; 637. a rotating plate; 638. a locking bolt; 639. rectangular limit grooves; 640. rectangular blocks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1 to 8, in the embodiment of the present invention, a node substructure member for continuous collapse resistance includes a failure center column 1, a cover plate 2 is installed at the top of the failure center column 1, shear plates 4 are disposed on two sides of the failure center column 1, two sides of the failure center column 1 are connected with a main beam 3 through the shear plates 4, one end of the main beam 3 far away from the failure center column 1 is provided with an end plate 5, a hinge support 6 is connected to the end plate 5 through bolts, a rectangular plate 601 is disposed on the inner side wall of the main beam 3, a locking fixing member is disposed on the rectangular plate 601, a prestress steel strand 604 is connected to the rectangular plate 601 through the locking fixing member, anchors 602 are disposed at two ends of the prestress steel strand 604, a clamping groove 606 is disposed on the main beam 3, a guide rod 607 is mounted on the inner side of the clamping groove 606, a second slider 616 is slidingly connected to the guide rod 607, a U-shaped pressing plate 608 is disposed on two sides of the second slider 616, a second connecting frame 615 is disposed on one side of the rectangular plate 601 far away from the clamping groove 606, a first connecting frame 605 extending to the lower side of the main beam 3 is disposed on the second connecting frame 615, a first connecting frame 605 is connected to the bottom of the first connecting frame 605, a first connecting frame 605 is disposed on the first connecting frame 605 is connected to the bottom of the first connecting frame 605, and the first connecting frame is disposed on the bottom of the first connecting frame and the first connecting frame is connected to the bottom of the first connecting frame and the warning frame is disposed on the bottom of the first connecting frame and the warning frame 616.
In this embodiment: when the components are assembled, the failure center pillar 1, the shear plates 4, the main beams 3, the end plates 5 and the hinge supports 6 are mutually connected through bolts, then a worker selects a prestress steel strand 604 with the length smaller than the main beams 3 and larger than the distance between the right angle plates 601 and the cover plates 2 according to the length of the main beams 3, then the prestress steel strand 604 is installed and fixed through manual operation of locking fixtures, at the moment, the U-shaped pressing plate 608 is positioned between the right angle plates 601 and the anchors 602, after the middle pillar of the failure center pillar 1 fails, the load born by the middle pillar of the failure center pillar moves downwards, meanwhile, the main beams 3 deform due to the compression of the failure center pillar 1, at the moment, the connecting node between the main beams 3 and the failure center pillar 1 receives a larger load, the failure center pillar 1 fails, and the peripheral multi-truss frame structure continuously collapses, in order to resist the occurrence of continuous collapse, the prestress steel strand 604 is straightened due to the deformation of the main beam 3, and after the substructure of the beam column joints fails, the prestress steel strand 604 of the second defense mechanism is started and provides axial tension, and the U-shaped pressing plate 608 moves towards the right angle plate 601 due to the straightening of the prestress steel strand 604, so that the buckling warning piece operates, the buckling warning piece and the buckling unit cooperate to make the position where the deformed main beam 3 is positioned generate sound, the warning sound is generated to predict the start of the prestress steel strand 604 of the second defense line for resisting the continuous collapse, collapse damage of the steel frame structure is delayed at this time, people can have enough time to escape and reduce the continuous collapse of a plurality of surrounding frames, unnecessary casualties are avoided, so that the warning effect is carried out on the working personnel, so that people can escape in time or replace and strengthen the steel structure.
Referring to fig. 1, the failure center pillar 1 is also provided with a rectangular plate 601, and the two ends of the prestressed steel strand 604 are limited by the rectangular plate 601 on the failure center pillar 1 and the main beam 3 through locking fixing pieces.
In this embodiment: by arranging the structure, the stability of the prestress steel strand 604 is improved, and the prestress steel strand 604 is prevented from swinging due to the whole shaking of the component, so that the effect of the prestress steel strand 604 on the continuous collapse resistance of the component is improved.
Referring to fig. 1 and 2, the horizontal height of the rectangular plate 601 is smaller than the horizontal height of the transverse central axis of the main beam 3.
In this embodiment: by arranging the structure, the prestress steel strand 604 is close to the joint of the bottom of the main beam 3 and the failure center column 1, so that the prestress steel strand 604 can limit and protect components in time when the main beam 3 deforms.
Referring to fig. 1, 2, 3, 7 and 8, the locking fixing member includes a U-shaped slot 618 formed in the right angle plate 601, a triangular support plate 614 is mounted at a right angle of the right angle plate 601, a rectangular limit slot 639 disposed side by side with the U-shaped slot 618 is formed at one end of the right angle plate 601, a rectangular block 640 is inserted into an inner side of the rectangular limit slot 639, a positioning plate 619 is mounted at one end of the rectangular block 640, a positioning bolt 638 connected with the right angle plate 601 is disposed on the positioning plate 619, a magnetic attraction block 609 is disposed at one end of the rectangular block 640 away from the positioning plate 619, and an arc-shaped clamping block 617 disposed on the inner side of the U-shaped slot 618 is mounted on the positioning plate 619.
In this embodiment: when the prestress steel strand 604 is installed, the prestress steel strand 604 is buckled into the inner side of the U-shaped groove 618, then the rectangular block 640 is inserted into the rectangular limit groove 639, the magnetic block 609 on the rectangular block 640 is attached to the inner wall of the rectangular limit groove 639 under the action of the suction force, so that the prestress of the position supplementing plate 619 is realized, the opening of the U-shaped groove 618 is shielded by the arc-shaped clamping block 617, the movable range of the prestress steel strand 604 in the U-shaped groove 618 is reduced, the stability of the prestress steel strand 604 is improved, the position supplementing plate 619 and the right-angle plate 601 are connected and fixed by screwing in the locking bolt 638, when the prestress steel strand 604 is in a straightening state, the force born by the anchor 602 acts on one side of the right-angle plate 601, and the right-angle plate 601 is supported by the triangular support plate 614, so that the supporting effect of the right-angle plate 601 on the anchor 602 is improved, the supporting and connecting effect of the prestress steel strand 604 on the girder 3 is ensured, and the integral continuous collapse resistance effect of the member is improved.
Referring to fig. 7 and 8, the arc of the arc-shaped clamping block 617 is equal to the arc of the bending part of the U-shaped slot 618, and the diameter of the arc-shaped clamping block 617 is smaller than the diameter of the anchor 602.
In this embodiment: by arranging the structure, the limiting effect of the arc-shaped clamping blocks 617 on the prestress steel strand 604 is increased, so that the prestress steel strand 604 is prevented from being misplaced relative to the main beam 3, and the continuous collapse resistance effect of the prestress steel strand 604 on the whole component is improved.
Referring to fig. 1-6, the bending warning member includes a first slider 603 mounted at the bottom of a second slider 616 and located below a main beam 3, a plug rod 610 penetrating a positioning plate 622 is mounted on the first slider 603, a telescopic spring 611 connected with the first slider 603 and located at the outer side of the plug rod 610 is disposed on the positioning plate 622, a movable block 620 is mounted at one end of the plug rod 610 far away from the first slider 603, an inclined guide rail 627 is disposed on the movable block 620, a limit rod 624 is inserted at the bottom of the positioning plate 622, a U-shaped movable frame 623 located at the outer side of the positioning plate 622 is fixed at the bottom of the limit rod 624, a shifting pin 633 slidably connected with the inclined guide rail 627 is disposed on the U-shaped movable frame 623, a wind shielding cover 626 is mounted at the bottom of the U-shaped movable frame 623, a side frame 612 located below the plug rod 610 is mounted at one side of the positioning plate 622, a connecting bin 632 is mounted at the bottom of the connecting bin 632, a separation opening 625 is formed in the through the tube 613, a positioning frame 635 is disposed at the top of the connecting bin 632, a conical rotating shaft 63634 is connected with the inner side of the rotating shaft 634 by a bearing 634, and the rotating shaft 637 is connected with the rotating shaft 637.
In this embodiment: when the U-shaped pressing plate 608 moves towards the right angle plate 601 under the pulling action of the anchor 602, the inserting rod 610 moves towards the positioning plate 622 under the driving of the first sliding block 603, the telescopic spring 611 is extruded to contract, the moving block 620 of the inserting rod 610 drives the inclined guide rail 627 to move, the inclined guide rail 627 pulls the U-shaped movable frame 623 upwards through the shifting pin 633, the shielding cover 626 loses shielding of the top of the connecting bin 632, when wind blows over the connecting bin 632, the conical cover 636 rotates relative to the positioning frame 635, the rotating plate 637 rotates, the flow speed of air in the connecting bin 632 is increased, at the moment, the air at the bottom of the through pipe 613 is discharged from the top of the connecting bin 632 through the through pipe 613, and when the air flow enters the through pipe 613, the split through the separating opening 625 gives out noise, so that a warning effect is achieved for workers, and meanwhile, the workers can maintain the workpieces at the position timely, so that the safety of using the component is improved.
Referring to fig. 6, the diameter of the top of the tube 613 is smaller than that of the bottom of the tube 613, the number of the conical covers 636 and the number of the rotating plates 637 are multiple, and the conical covers 636 and the rotating plates 637 are distributed equidistantly along the center of the rotating shaft 634.
In this embodiment: by providing this structure, when the rotating plate 637 rotates along with the rotating shaft 634, the top of the tube 613 is in a negative pressure state, and thus air at the bottom of the tube 613 enters the tube 613, and sound is generated.
Referring to fig. 2, 3, 4 and 5, the latch unit includes a supporting plate 621 mounted at the bottom of the positioning plate 622, a locking pin 629 inserted on the supporting plate 621, a fixing plate 631 connected to the bottom of the locking pin 629, a reset spring 630 connected to the bottom of the supporting plate 621 disposed on the top of the fixing plate 631, and a locking hole 628 formed on the inserting rod 610.
In this embodiment: along with the increase of the deformation amount of the main beam 3, the first sliding block 603 moves towards the positioning plate 622, when the locking hole 628 moves to the upper side of the locking pin 629 along with the movement of the inserting rod 610, the locking pin 629 is inserted into the locking hole 628 under the action of the elastic restoring force of the restoring spring 630, so that the inserting rod 610 can be limited, the U-shaped movable frame 623 is fixed when moving to the highest position through the limitation of the inserting rod 610, the shielding cover 626 can be completely lost from shielding the top of the connecting bin 632, and the through pipe 613 continuously sounds, so that the warning effect is increased.
Referring to fig. 4, the diameters of the detent pin 629 and the detent hole 628 are equal, and the top of the detent pin 629 is rotatably connected with a ball through a bearing.
In this embodiment: by arranging the structure, the friction force between the clamping pin 629 and the inserted link 610 is reduced, and meanwhile, the inserted link 610 is limited when the clamping pin 629 is inserted into the locking hole 628, so that the stability of the inserted link 610 after being limited by the locking hole 628 is improved.
The following provides a method for resisting continuous collapse by combining the node substructure component resisting continuous collapse, which specifically comprises the following steps:
s1: when the component is assembled, firstly, the failure center column 1, the shearing plate 4, the main beam 3, the end plate 5 and the hinge support 6 are connected in a bolt welding mode, firstly, the flange and the web plate of the main beam 3 are welded on the left side and the right side of the failure center column 1, then the shearing plate 4 is welded on the left side and the right side of the failure center column 1, finally, a bolt passes through the shearing plate 4 and is connected with the web plate of the main beam 3, and a nut is screwed down, the connection mode is called bolt welding mixed connection, even if a welding line breaks in the continuous collapse process, the welding line can consume energy through the bolt, so that the structure is not broken in brittle failure, and the life and property safety of human beings is dangerous;
s2: the staff selects a prestress steel strand 604 with the length smaller than the main beam 3 and larger than the distance between the right angle plate 601 and the cover plate 2 according to the length of the main beam 3;
s3: when the prestress steel strand 604 is installed, firstly buckling the prestress steel strand 604 into the inner side of the U-shaped groove 618, then inserting the rectangular block 640 into the rectangular limit groove 639, attaching the magnetic block 609 on the rectangular block 640 to the inner wall of the rectangular limit groove 639 under the action of suction force, so as to realize the pre-connection of the position supplementing plate 619, and simultaneously shielding the opening of the U-shaped groove 618 by the arc-shaped clamping block 617, so as to reduce the movable range of the prestress steel strand 604 in the U-shaped groove 618, thereby increasing the stability of the prestress steel strand 604, and then realizing the connection and fixation of the position supplementing plate 619 and the right angle plate 601 by screwing the locking bolt 638;
s4: when the middle column of the failure middle column 1 fails, the load born by the middle column is downwards moved, meanwhile, the main beam 3 deforms due to the compression of the failure middle column 1, at the moment, the connecting node between the main beam 3 and the failure middle column 1 receives larger load, the failure middle column 1 fails to cause continuous collapse of the peripheral multi-truss frame structure, the prestressed steel strands 604 are straightened due to the deformation of the main beam 3 in order to resist the continuous collapse, and meanwhile, after the node substructure of the beam and column fails, the second defense mechanism prestressed steel strands 604 are started and provide axial tension;
s5: when the U-shaped pressing plate 608 moves towards the right angle plate 601 under the pulling action of the anchorage 602, the inserting rod 610 moves towards the positioning plate 622 under the driving of the first sliding block 603, the telescopic spring 611 is extruded to contract, the inclined guide rail 627 is driven to move along with the moving movable block 620 of the inserting rod 610, the inclined guide rail 627 pulls the U-shaped movable frame 623 upwards through the shifting pin 633, the shielding cover 626 loses shielding of the top of the connecting bin 632, when wind blows above the connecting bin 632, the conical cover 636 rotates relative to the positioning frame 635, the rotating plate 637 rotates, so that the flow velocity of air in the connecting bin 632 is increased, at the moment, the air at the bottom of the through pipe 613 passes through the top of the connecting bin 613 and is discharged from the top of the connecting bin 632, when the air flow enters the through the dividing opening 625, the second channel of anti-continuous collapse wire prestress steel strand is started, collapse of the steel frame structure is delayed, and the collapse of the frame structure is damaged in a warning mode, so that people have enough time and the continuous collapse of surrounding frames are reduced, and the people are not required to be warned;
s6: along with the increase of the deformation amount of the main beam 3, the first sliding block 603 moves towards the positioning plate 622, when the locking hole 628 moves to the upper side of the locking pin 629 along with the movement of the inserting rod 610, the locking pin 629 is inserted into the locking hole 628 under the action of the elastic restoring force of the restoring spring 630, so that the inserting rod 610 can be limited, the U-shaped movable frame 623 is fixed when moving to the highest position through the limitation of the inserting rod 610, and the shielding cover 626 can be completely lost from shielding the top of the connecting bin 632, so that the through pipe 613 continuously sounds.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a node substructure component that anti continuous collapse, includes failure center pillar (1), its characterized in that, apron (2) are installed at the top of failure center pillar (1), the both sides of failure center pillar (1) are provided with shear plate (4), the both sides of failure center pillar (1) are connected with girder (3) through shear plate (4), the one end that failure center pillar (1) was kept away from to girder (3) is provided with end plate (5), be connected with hinge support (6) through the bolt on end plate (5), the inside wall of girder (3) is provided with rectangular plate (601), be provided with locking mounting on rectangular plate (601), rectangular plate (601) are connected with prestressing force stranded conductor (604) through the locking mounting, the both ends of prestressing force stranded conductor (604) are provided with ground tackle (602), offer draw-in groove (606) that are located rectangular plate (601) one side on girder (3), guide arm (607) are installed to the inboard of draw-in groove (606), be connected with hinge support (6) through the bolted connection on end plate (5), rectangular plate (607) are provided with second slider (616) and are kept away from second slider (616) side (616), the second connecting frame (615) is provided with a first connecting frame (605) extending to the lower part of the main beam (3), the bottom of the first connecting frame (605) is fixedly provided with a positioning plate (622), the bottom of the second sliding block (616) is provided with a bending warning piece connected with the positioning plate (622), and the bottom of the first connecting frame (605) is provided with a buckling unit connected with the bending warning piece;
the locking fixing piece comprises a U-shaped groove (618) formed in a right angle of a right angle plate (601), a triangular support plate (614) is arranged at the right angle of the right angle plate (601), a rectangular limit groove (639) which is arranged side by side with the U-shaped groove (618) is formed in one end of the right angle plate (601), a rectangular block (640) is inserted into the inner side of the rectangular limit groove (639), a position supplementing plate (619) is arranged at one end of the rectangular block (640), a position locking bolt (638) connected with the right angle plate (601) is arranged on the position supplementing plate (619), a magnetic attraction block (609) is arranged at one end, far away from the position supplementing plate (619), of the rectangular block (640), and an arc-shaped position clamping block (617) positioned on the inner side of the U-shaped groove (618) is arranged on the position supplementing plate (619).
The bending warning piece comprises a first sliding block (603) arranged at the bottom of a second sliding block (616) and positioned below a main beam (3), a plug rod (610) penetrating a positioning plate (622) is arranged on the first sliding block (603), a telescopic spring (611) connected with the first sliding block (603) and positioned at the outer side of the plug rod (610) is arranged on the positioning plate (622), a movable block (620) is arranged at one end, far away from the first sliding block (603), of the plug rod (610), an inclined guide rail (627) is arranged on the movable block (620), a limit rod (624) is inserted at the bottom of the positioning plate (622), a U-shaped movable frame (623) positioned at the outer side of the positioning plate (622) is fixed at the bottom of the limit rod (624), a poking pin (633) which is slidably connected with the inclined guide rail (627) is arranged on the U-shaped movable frame (623), a wind shielding cover (626) is arranged at the bottom of the U-shaped movable frame (623), a movable block (620) is arranged at one side of the positioning plate (622), a side of the plug rod (610) is provided with a side frame (635), a connecting bin (612) is arranged at the bottom of the side frame (613), a connecting bin (613) is arranged at the bottom of the side frame (632), the inner side of the locating rack (635) is rotatably connected with a rotating shaft (634) through a bearing, a conical cover (636) is mounted on the rotating shaft (634), and the bottom end of the rotating shaft (634) is connected with a rotating plate (637) located at the inner side of the connecting bin (632).
2. The continuous collapse resistant node substructure component according to claim 1, wherein the failure center pillar (1) is also provided with a rectangular plate (601), and the failure center pillar (1) and the rectangular plate (601) on the main beam (3) limit two ends of the prestressed steel strand (604) through locking fixing pieces.
3. A node substructure according to claim 1, wherein the level of the gusset (601) is smaller than the level of the transverse central axis of the main girder (3).
4. A node substructure according to claim 1, wherein the arc of the arc-shaped detent blocks (617) is equal to the arc of the bending of the U-shaped channel (618), and the diameter of the arc-shaped detent blocks (617) is smaller than the diameter of the anchor (602).
5. The continuous collapse resistant node substructure member of claim 1, wherein the diameter of the top of the tube (613) is smaller than the diameter of the bottom of the tube (613), the number of the conical caps (636) and the number of the rotating plates (637) are each plural, and the plurality of conical caps (636) and the rotating plates (637) are equidistantly distributed along the center of the rotating shaft (634).
6. The continuous collapse resistant node substructure member according to claim 1, wherein the locking unit comprises a supporting plate (621) mounted at the bottom of the positioning plate (622), a clamping pin (629) is inserted on the supporting plate (621), the bottom end of the clamping pin (629) is connected with a positioning plate (631), a return spring (630) connected with the bottom of the supporting plate (621) is arranged at the top of the positioning plate (631), and a locking hole (628) is formed in the inserted rod (610).
7. The continuous collapse resistant node substructure of claim 6, wherein the detent pin (629) is of equal diameter to the detent hole (628), and the top of the detent pin (629) is rotatably connected with balls via bearings.
8. A method of resisting continuous collapse, characterized by employing a continuous collapse resistant node substructure according to any of claims 1-7, comprising the steps of:
s1: when the component is assembled, firstly, a failure center column (1), a shearing plate (4), a main beam (3), an end plate (5) and a hinged support (6) are in bolt welding mixed connection, firstly, flanges and webs of the main beam (3) are welded on the left side and the right side of the failure center column (1), then the shearing plate (4) is welded on the left side and the right side of the failure center column (1), finally, a bolt penetrates through the shearing plate (4) and is connected with the web of the main beam (3), and a nut is screwed down, so that the connection mode is called bolt welding mixed connection;
s2: then, a worker selects a prestress steel strand (604) with the length smaller than the length of the main beam (3) and larger than the distance between the right angle plate (601) and the cover plate (2) according to the length of the main beam (3), then, the prestress steel strand (604) is installed and limited by manually operating a locking fixing piece, tensioning prestress is carried out by matching an oil pump with a jack, and a U-shaped pressing plate (608) is positioned between the right angle plate (601) and an anchorage device (602);
s3: when the middle column of the failure middle column (1) fails, the load born by the middle column moves downwards, the main beam (3) is deformed due to the compression of the failure middle column (1), at the moment, the connecting node between the main beam (3) and the failure middle column (1) is subjected to larger load, the failure middle column (1) fails to cause continuous collapse of the peripheral multi-truss frame structure, the prestressed steel strands (604) are straightened due to the deformation of the main beam (3) for resisting the continuous collapse, and meanwhile, after the node substructure of the beam column fails, the second defense mechanism prestressed steel strands (604) are started and provide axial tension;
s4: meanwhile, the U-shaped pressing plate (608) moves towards the right-angle plate (601) due to the straightening of the prestress steel strand (604), so that the buckling warning piece is operated, the buckling warning piece and the buckling locking unit are matched to enable the position of the deformed main beam (3) to generate sound, the warning sound is started to indicate the second anti-continuous collapse prestress steel strand (604), and collapse damage of the steel frame structure can be delayed.
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| CN112302175A (en) * | 2020-10-30 | 2021-02-02 | 梁国莉 | Beam column connecting structure for high-rise building steel reinforced concrete composite structure |
| KR102418490B1 (en) * | 2021-09-06 | 2022-07-06 | 이동찬 | concrete beam reinforcing structure |
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