Connecting assembly for fabricated U-shaped steel plate-concrete composite beam

Abstract

The invention discloses a connecting assembly for a fabricated U-shaped steel plate-concrete composite beam, and belongs to the technical field of constructional engineering, the connecting assembly comprises U-shaped damping parts fixedly mounted on two U-shaped steel plates respectively, two opposite arms of the U-shaped damping parts are fixedly connected with two opposite side walls of the U-shaped steel plates respectively, and the U-shaped damping parts are fixedly mounted on the U-shaped steel plates. The axis of the U-shaped damping plate is perpendicular to the bottom wall of the U-shaped steel plate, a plurality of reinforcing plates are fixedly connected between two arms of the U-shaped damping plate and are parallel to the two arms of the U-shaped damping plate, one end of each reinforcing plate is fixedly connected with the arc-shaped section of the U-shaped damping plate, and the other end of each reinforcing plate is fixedly connected with the bottom wall of the U-shaped steel plate. Elastic damping pieces are fixedly connected between two arms of the U-shaped damping plate and the reinforcing plates and between the adjacent reinforcing plates, after the two U-shaped steel plates are spliced, the U-shaped damping plates arranged on the two U-shaped steel plates are oppositely arranged, and the reinforcing plates on the two U-shaped damping plates are arranged in a staggered mode. The U-shaped damping plate has the energy dissipation function and the self-resetting function.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction engineering, and in particular relates to a connection assembly for assembled U-shaped steel plate-concrete composite beams. Background Art

[0002] In modern construction, prefabricated structures are widely used due to their advantages, such as fast construction and controlled quality. As a new type of prefabricated structure, U-shaped steel plate-concrete composite beams combine the advantages of both steel and concrete. However, in practice, how to effectively connect the U-shaped steel plate with the concrete to ensure structural stability and safety remains a technical challenge.

[0003] In the prior art, a Chinese patent with the announcement number CN 112177246 B discloses an assembled outsourced U-shaped steel plate-concrete composite beam and a connection assembly, wherein the connection assembly is composed of a male part and a female part; when splicing, the structures on the male part and the female part are staggered, and the male part and the female part do not contact each other and fit with a large gap, and the gap between the male part and the female part is filled with concrete. The beneficial technical effect of the present invention is: an assembled outsourced U-shaped steel plate-concrete composite beam and a connection assembly are proposed, which can effectively reduce the cost of beam production and improve the convenience of splicing operations while ensuring a high connection strength. However, when the above technology is used, since the U-shaped steel plate connection only uses concrete and the connection assembly for rigid fit, it does not have the effect of shock absorption and energy dissipation. When the connection is deformed after an earthquake, it is difficult to reset, thereby reducing the safety of use after the earthquake.

[0004] Therefore, it is necessary to propose a connection assembly for assembled U-shaped steel plate-concrete composite beams to solve the above problems. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a connection assembly for prefabricated U-shaped steel plate-concrete composite beams, which is used to solve the problem in the prior art that the U-shaped steel plate connection only uses concrete and the connection assembly for rigid matching, so that it has no shock-absorbing and energy-absorbing effect, and when the connection is deformed after an earthquake, it is difficult to reset, thereby reducing the safety of use after the earthquake.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: The present invention provides a connection component for assembled U-shaped steel plate-concrete composite beams, comprising U-shaped damping members respectively fixedly mounted on two U-shaped steel plates, wherein two opposite arms of the U-shaped damping member are respectively fixedly connected to two opposite side walls of the U-shaped steel plate, the axis of the U-shaped damping plate is arranged perpendicular to the bottom wall of the U-shaped steel plate, a plurality of reinforcing plates are fixedly connected between the two arms of the U-shaped damping plate, the reinforcing plate is arranged parallel to the two arms of the U-shaped damping plate, one end of the reinforcing plate is fixedly connected to the arc section of the U-shaped damping plate, elastic damping members are fixedly connected between the two arms of the U-shaped damping plate and the reinforcing plate and between adjacent reinforcing plates, and after the two U-shaped steel plates are spliced, the U-shaped damping plates respectively arranged on the two U-shaped steel plates are arranged opposite to each other, and the plurality of reinforcing plates on the two U-shaped damping plates are staggered.

[0007] Furthermore, a spiral rib is fixedly connected between the two arms of the U-shaped damping plate. The axis of the spiral rib is arranged perpendicular to the two arms of the U-shaped damping plate, and the spiral rib extends radially out of the U-shaped damping plate. The spiral rib is arranged to avoid the reinforcement plate. After the two U-shaped steel plates are spliced, the two spiral ribs are staggered.

[0008] Furthermore, the elastic damping member includes two coaxially arranged fixing rods, one end of the two fixing rods is slidably connected in the same sleeve, the fixing rod is fixedly connected to the cross arm of the reinforcing plate or the U-shaped damping plate at the end away from the sleeve, the end of the fixing rod extending into the sleeve is fixedly connected to a slide that is slidably and frictionally connected to the inner wall of the sleeve, and a spring is fixedly connected between the two slides.

[0009] Furthermore, the elastic damping member is arranged on the inner circle of the spiral rib, and the axis of the elastic damping member is located between the axis of the spiral rib and the axis of the arc section of the U-shaped damping plate.

[0010] Furthermore, a plurality of steel bars arranged along the extending direction of the U-shaped steel plate are fixedly connected to the outer wall of the arc section of the U-shaped damping plate.

[0011] Furthermore, the two U-shaped steel plates are spliced together to form a first splicing seam, and the two U-shaped damping plates are spliced together to form a second splicing seam, and the first splicing seam and the second splicing seam are staggered.

[0012] Furthermore, a limiting plate vertically arranged to the reinforcing plate is fixedly connected to the reinforcing plate.

[0013] The beneficial effects of the present invention are: When the assembled U-shaped steel plate-concrete composite beam of the present invention is subjected to vibration, the U-shaped damping plate plays an energy dissipation role and a self-resetting function; by providing a reinforcement plate, the structural strength between the two U-shaped steel plates is ensured, and the elastic damping member is used to enhance the energy dissipation capacity and self-resetting capacity, and to ensure the stability of the reinforcement plate support.

[0014] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration: Figure 1 This is a structural schematic diagram of an assembled U-shaped steel plate-concrete composite beam according to an embodiment of the present invention; Figure 2 Schematic diagram of the elastic damping structure of an embodiment of the present invention.

[0016] The markings in the accompanying drawings are as follows: U-shaped steel plate 1, first splicing seam 101, U-shaped damping plate 2, second splicing seam 201, reinforcing plate 3, limiting plate 301, elastic damping member 4, fixing rod 401, sleeve 402, slide plate 403, spring 404, spiral rib 5, and steel bar 6. DETAILED DESCRIPTION

[0017] like Figures 1 and 2 As shown, the present invention provides a connection assembly for an assembled U-shaped steel plate-concrete composite beam, comprising: a U-shaped damping plate 2 fixedly mounted on two U-shaped steel plates 1, the two opposite arms of the U-shaped damping plate 2 are fixedly connected to the two opposite side walls of the U-shaped steel plate 1 by bolts, the axis of the U-shaped damping plate 2 is arranged perpendicular to the bottom wall of the U-shaped steel plate 1, a plurality of reinforcing plates 3 are fixedly connected between the two arms of the U-shaped damping plate 2, the reinforcing plate 3 is arranged parallel to the two arms of the U-shaped damping plate 2, one end of the reinforcing plate 3 is fixedly connected to the arc section of the U-shaped damping plate 2, elastic damping parts 4 are fixedly connected between the two arms of the U-shaped damping plate 2 and the reinforcing plate 3 and between adjacent reinforcing plates 3, after the two U-shaped steel plates 1 are spliced, the U-shaped damping plates 2 respectively arranged on the two U-shaped steel plates 1 are arranged opposite to each other, and the multiple reinforcing plates 3 on the two U-shaped damping plates 2 are staggered.

[0018] In this solution, the U-shaped damping plates 2 are first fixed on the two U-shaped steel plates 1 respectively, and then the two adjacent U-shaped steel plates 1 are spliced, and the U-shaped damping plates 2 on the two U-shaped steel plates 1 are arranged relative to each other, and the relatively arranged reinforcing plates 3 are staggered, and then concrete is poured to connect the two U-shaped steel plates 1 into one. When subjected to vibration, the U-shaped damping plate 2 itself has an energy dissipation function and a self-resetting function; by setting the reinforcing plate 3, the structural strength between the two U-shaped steel plates 1 is guaranteed, and the elastic damping member 4 is used to enhance the energy dissipation capacity and self-resetting capacity, and to ensure the stability of the support of the reinforcing plate 3.

[0019] In one embodiment of the present invention, a spiral rib 5 is fixedly connected between the two arms of the U-shaped damping plate 2. The axis of the spiral rib 5 is arranged perpendicular to the two arms of the U-shaped damping plate 2, and the spiral rib 5 extends radially out of the U-shaped damping plate 2. The spiral rib 5 is arranged to avoid the reinforcing plate 3. After the two U-shaped steel plates 1 are spliced, the two spiral ribs 5 are staggered.

[0020] In this solution, the two staggered spiral bars 5 effectively limit the lateral deformation of the concrete, improve the bearing capacity of the connection between the two U-shaped steel plates 1, and provide torsional energy dissipation capacity to a certain extent.

[0021] In one embodiment of the present invention, the elastic damping member 4 includes two coaxially arranged fixed rods 401, one end of the two fixed rods 401 is slidingly connected in the same sleeve 402, the end of the fixed rod 401 away from the sleeve 402 is fixedly connected to the cross arm of the reinforcing plate 3 or the U-shaped damping plate 2, and the end of the fixed rod 401 extending into the sleeve 402 is fixedly connected to a slide plate 403 that is slidingly and frictionally connected to the inner wall of the sleeve 402, and a spring 404 is fixedly connected between the two slide plates 403.

[0022] In this solution, through the design of the above structure, the elastic damping member 4 can provide energy dissipation during vibration, and by providing the sleeve 402, the sliding stability of the fixed rod 401 is ensured, and the spring 404 is prevented from being fixed during concrete pouring; the expansion and contraction ability of the spring 404 is ensured.

[0023] In one embodiment of the present invention, the elastic damping member 4 is arranged in the inner circle of the spiral rib 5, and the axis of the elastic damping member 4 is located between the axis of the spiral rib 5 and the axis of the arc section of the U-shaped damping plate 2; thereby providing space for the staggered distance of the spiral rib 5.

[0024] In one embodiment of the present invention, a plurality of steel bars 6 are fixedly connected to the outer wall of the arc section of the U-shaped damping plate 2 to ensure the bearing capacity of the concrete composite beam.

[0025] In one embodiment of the present invention, two U-shaped steel plates 1 are spliced to form a first splicing seam 101, and two U-shaped damping plates 2 are spliced to form a second splicing seam 201. The first splicing seam 101 and the second splicing seam 201 are staggered to facilitate alignment when splicing the two U-shaped steel plates 1.

[0026] In one embodiment of the present invention, a limiting plate 301 vertically arranged to the reinforcing plate 3 is fixedly connected to the reinforcing plate 3 to limit the horizontal displacement of the composite beam.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A connection assembly for assembled U-shaped steel plate-concrete composite beams, characterized by: The cam is constructed by rotating the legs of the U-shaped support frame, so that the cam can be rotated to move the legs and then rotate the legs in a direction that is perpendicular to the length of the U-shaped support frame, so that the cam can move freely in the cam face, thereby making the cam face look more stable and more compact.

2. The connection assembly for assembled U-shaped steel plate-concrete composite beam according to claim 1, characterized in that: A spiral rib is fixedly connected between the two arms of the U-shaped damping plate. The axis of the spiral rib is arranged perpendicular to the two arms of the U-shaped damping plate, and the spiral rib extends radially out of the U-shaped damping plate. The spiral rib is arranged to avoid the reinforcement plate. After the two U-shaped steel plates are spliced, the two spiral ribs are staggered.

3. The connection assembly for assembled U-shaped steel plate-concrete composite beam according to claim 2, characterized in that: The elastic damping member includes two coaxially arranged fixing rods, one end of the two fixing rods is slidably connected in the same sleeve, the fixing rod is fixedly connected to the cross arm of the reinforcing plate or the U-shaped damping plate at the end away from the sleeve, the end of the fixing rod extending into the sleeve is fixedly connected to a slide that is slidably and frictionally connected to the inner wall of the sleeve, and a spring is fixedly connected between the two slides.

4. The connection assembly for assembled U-shaped steel plate-concrete composite beam according to claim 3, characterized in that: The elastic damping member is arranged on the inner circle of the spiral rib, and the axis of the elastic damping member is located between the axis of the spiral rib and the axis of the arc section of the U-shaped damping plate.

5. The connection assembly for assembled U-shaped steel plate-concrete composite beam according to claim 4, characterized in that: A plurality of steel bars arranged along the extending direction of the U-shaped steel plate are fixedly connected to the outer wall of the arc section of the U-shaped damping plate.

6. The connection assembly for assembled U-shaped steel plate-concrete composite beam according to claim 5, characterized in that: The two U-shaped steel plates are spliced to form a first splicing seam, and the two U-shaped damping plates are spliced to form a second splicing seam. The first splicing seam and the second splicing seam are staggered.

7. The connection assembly for assembled U-shaped steel plate-concrete composite beam according to claim 6, characterized in that: The reinforcing plate is fixedly connected to a limiting plate which is arranged perpendicular to the reinforcing plate.

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