Damping device for connecting joint of assembled concrete column and newly-added steel beam
Technical Field
The invention belongs to the field of building structural members, and particularly relates to a damping device for a connection node of an assembled concrete column and a newly-added steel beam.
Background
With the popularization and development of residential steel structures, the connection of the steel pipe concrete columns and horizontal members such as beams and plates forms an important structural system, and the steel pipe concrete columns have the characteristics of light dead weight, convenience in construction, large span and the like, have extremely good anti-seismic performance, and have high repairability even in Zhengzhou province. However, through research on analysis of node stress distribution rules, it is found that stress distribution at the joint of the steel beam and the concrete-filled steel tube column is concentrated, which easily causes yield strain of the steel beam flange and even causes sudden change at the web plate, and therefore, it is very necessary to further enhance the connection at the node.
Disclosure of Invention
The invention provides a damping device for a connection node of an assembled concrete column and a newly-added steel beam, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
a damping device for a connection node of an assembled concrete column and a newly-added steel beam comprises the steel pipe column and the steel beam, wherein C-shaped plates are arranged on the front side and the rear side of the steel beam, the opening sides of the C-shaped plates are deviated from the steel pipe column, the other sides of the C-shaped plates are fixedly connected with the steel pipe column, two L-shaped plates are arranged on each C-shaped plate, the L-shaped plates are arranged on the opposite surfaces of the two C-shaped plates, the steel beam is arranged between the four L-shaped plates and is respectively connected with the four L-shaped plates through bolts, two pressing strips are arranged on the front side and the rear side of the steel beam respectively, the two pressing strips on the front side are connected through a scissor rod, the two pressing strips on the rear side are connected through the same scissor rod, a sleeve with an opening at one end is fixedly arranged in each C-shaped plate, movable rods in sliding fit with the sleeve are respectively arranged in the sleeve, each sleeve is, the arc respectively with the periphery contact cooperation of the projection that corresponds, the communicating through groove in inside with it is all seted up to telescopic periphery, telescopic periphery all passes through wheel carrier installation gear, the tooth's socket with gear engagement is all seted up to the periphery of movable rod, the recess is seted up respectively to one of them terminal surface of gear, equal fixed mounting several wedge in the recess, telescopic periphery passes through the bearing frame installation pivot, the one end of pivot is located corresponding recess respectively and passes through the one end of torsional spring connection several shifting block, the other end of shifting block is corresponding wedge block respectively, the equal fixed connection one end of L type pole in periphery of pivot, L type pole and shifting block one-to-one, the other end of L type pole all with the contact cooperation of shifting block that corresponds, the equal fixed mounting line wheel of the other end of pivot, the equal fixed connection line rope's of periphery of line wheel one end, the other end of cotton rope all with the scissor pole fixed connection that corresponds.
According to the damping device for the connection node of the fabricated concrete column and the newly-added steel beam, the shear fork rod is formed by rotationally connecting two rods, a through hole is formed in one rod, and the other end of the thread rope penetrates through the corresponding through hole and then is fixedly connected with the other rod.
According to the damping device for the connection node of the assembled concrete column and the newly-added steel beam, the pressing strips are provided with the sliding grooves, the sliding blocks are movably mounted in the sliding grooves, and the end parts of the shearing fork rods are respectively and simultaneously hinged with the corresponding pressing strips and the corresponding sliding blocks.
According to the damping device for the connection node of the assembled concrete column and the newly-added steel beam, the plurality of rib plates are fixedly installed on the periphery of the convex column respectively and are fixedly connected with the steel beam.
According to the damping device for the connection node of the fabricated concrete column and the newly-added steel beam, the wire rope is a steel strand.
The invention has the advantages that: this device is when the girder steel atress especially follows its length direction's power, the girder steel has the motion trend, cooperation through arc and projection, absorb this motion and turn into the rotation of gear with it, when the movable rod removes to the sleeve, gear revolve can pass through the wedge, the shifting block drives the pivot and rotates, the pivot rotates and drives the line wheel rotation and draws in the cotton rope in, can enlarge the interval between two layering, layering and L template one-to-one, the layering can press from both sides the edge of a wing of tight girder steel with L template mutually supported, can promote its loaded ability, prevent that its atress from causing the bending etc. too greatly, and layering and L template have increased and the girder steel between the frictional force, thereby can greatly offset the power, can further restrain the removal of system girder steel, thereby can alleviate rocking of this node or adoption this node building. This structure can strengthen the stability in the horizontal dimension, reduces because of the steel roof beam activity on a large scale and even the ground or the roof fracture problem that the damage caused, is favorable to further guaranteeing people's property, personal safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of the view from the direction A of FIG. 1; FIG. 3 is an enlarged view of the view of FIG. 1 taken along line B; fig. 4 is an enlarged view of a sectional view taken along line C-C of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A damping device for a connection node of an assembled concrete column and a newly-added steel beam comprises a steel pipe column 1 and a steel beam 2, wherein the steel beam 2 is H-shaped steel and is perpendicular to the steel pipe column 1, C-shaped plates 3 are arranged on the front side and the rear side of the steel beam 2, the opening sides of the C-shaped plates 3 are far away from the steel pipe column 1, the other sides of the C-shaped plates 3 are fixedly connected with the steel pipe column 1, two L-shaped plates 4 are arranged on each C-shaped plate 3, the two L-shaped plates 4 are distributed above and below, the L-shaped plates 4 are positioned on the opposite surfaces of the two C-shaped plates 3, the steel beam 2 is positioned between the four L-shaped plates 4 and is respectively connected with the L-shaped plates 4 through bolts, holes are respectively formed in the L-shaped plates 4 and the steel beam 2 and are connected through bolts, the beam flanges of the steel beam 2 are respectively contacted and matched with the C, the two pressing strips 5 on the front side are connected through a scissor rod 6, the two pressing strips 5 on the rear side are connected through the same scissor rod 6, a sleeve 7 with an opening at one end is fixedly installed in each C-shaped plate 3, the sleeve 7 is obliquely arranged, the other end of each sleeve 7 is fixedly connected with the corner of the inner wall of the corresponding C-shaped plate 3, a movable rod 8 in sliding fit with the sleeve 7 is arranged in each sleeve 7, each sleeve 7 is connected with the corresponding movable rod 8 through a spring 9, the two ends of each sleeve 7 are fixedly connected in a welding mode and the like, an arc-shaped plate 10 is fixedly installed at the outer end of each movable rod 8, the front surface and the rear surface of each steel beam 2 are fixedly connected with one end of a convex column 11, the two convex columns 11 are coaxially and longitudinally arranged, the arc-shaped plates 10 are respectively in contact fit with the peripheries of the corresponding convex columns 11, through grooves 12 communicated with the interiors of the peripheries of the sleeves 7 are formed in the peripheries of the sleeves, gears 13 are installed on, when the movable rod 8 inwards moves along the sleeve 7, the gear 13 can be driven to rotate, a groove 14 is respectively formed in one end face of the gear 13, the groove 14 is of a circular structure and shares the same central line with the gear 13, a plurality of wedge blocks 15 are fixedly installed in the groove 14, the wedge blocks 15 are uniformly distributed in the groove 14, a rotating shaft 16 is installed on the periphery of the sleeve 7 through a bearing seat, the rotating shaft 14 is longitudinally arranged, one end of the rotating shaft 16 is located in the corresponding groove 14 and connected with one end of a plurality of shifting blocks 17 through torsion springs, the other end of each shifting block 17 is clamped with the corresponding wedge block 15, one end of an L-shaped rod 18 is fixedly connected with the periphery of the rotating shaft 16, the L-shaped rods 18 correspond to the shifting blocks 17 one to one, the other end of the L-shaped rod 18 is in contact fit with the corresponding shifting blocks 17, a wire wheel 19 is fixedly installed at the other end of the rotating shaft 16, one end of a wire rope 20 is fixedly connected with. When the steel beam 2 is stressed, particularly the force in the length direction of the steel beam 2 is conformed, the steel beam 2 has the movement tendency, the motion mode is absorbed and converted into the rotation of the gear 13 through the matching of the arc-shaped plate 10 and the convex column 11, when the movable rod 8 moves towards the sleeve 7, the gear 13 rotates to drive the rotating shaft 16 to rotate through the wedge-shaped block 15 and the shifting block 17, the rotating shaft 16 rotates to drive the wire wheel 19 to rotate to draw in the wire rope 20, the space between the two pressing strips 5 can be enlarged, the pressing strips 5 correspond to the L-shaped plates 4 one by one, the pressing strips 5 and the L-shaped plates 4 are matched with each other to clamp the flange of the steel beam 2, the loading capacity of the steel beam can be improved, the steel beam is prevented from being bent due to overlarge stress, and the friction between the pressing strips 5 and the L-shaped plates 4 and the steel, thereby can greatly offset the vibration power, can further gram the removal of system girder steel 2 to can alleviate rocking of this node or adopting this node building. This structure can strengthen the stability in the horizontal dimension, reduces because of the ground or the roof fracture problem that girder steel 2 activity on a large scale even damage caused, is favorable to further guaranteeing people's property, personal safety.
Specifically, as shown in fig. 1, the scissors rod 6 of this embodiment is formed by two rods that are rotatably connected, the rotation connection mode is an articulated shaft, one end of the articulated shaft is fixedly connected to the corresponding C-shaped plate 3, the two rods can rotate around the articulated shaft, one of the rods is provided with a through hole, and the other end of the cord 20 is fixedly connected to the other rod after passing through the corresponding through hole. The through hole is not shown in the figure, when the wire wheel 19 rotates to draw the wire rope 20, the two rods can be close to each other, so that the distance between the two corresponding pressing strips 5 is enlarged.
Specifically, as shown in fig. 1, the pressing strips 5 according to this embodiment are provided with sliding grooves 21, sliding blocks 22 are movably mounted in the sliding grooves 21, and the ends of the scissor levers 6 are respectively and simultaneously hinged to the corresponding pressing strips 5 and the corresponding sliding blocks 22. This configuration can accommodate the horizontal displacement produced by the rotation of the two component bars of the scissors assembly 6.
Further, as shown in fig. 1 or 4, a plurality of rib plates 23 are respectively and fixedly installed on the outer periphery of the convex column 11, and the rib plates 23 are all fixedly connected with the steel beam 2. The structure can further strengthen the structural strength of the beam plate 2 and improve the load limit of the beam plate.
Further, the wire rope 20 according to the present embodiment is a steel strand. The diameter of the cable is 5-8 mm, the tensile property is good, the service life is long, and the cable is not easy to break.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.