CN213572408U

CN213572408U - Displacement-controllable assembled frame node

Info

Publication number: CN213572408U
Application number: CN202021802025.0U
Authority: CN
Inventors: 黄华; 袁玉杰; 白豪; 何山; 孙弘烨; 高悦
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-06-29
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a displacement controllable assembled frame node, which comprises a limiting part and an energy consumption part, wherein the limiting part is used for limiting the rotation angle of the node; the limiting part comprises a first connecting plate, a second connecting plate, an occlusion limiting block and a connecting shaft; the first connecting plate is provided with a U-shaped opening for the second connecting plate to be inserted into; the occlusion limiting block comprises first bulges arranged on two inner surfaces of the U-shaped opening and second bulges arranged on two sides of the second connecting plate, and the first bulges and the second bulges are distributed around the connecting shaft; and a movable interval exists between the first protrusion and the second protrusion on the same side, and two ends of the energy consumption piece are respectively connected to the first connecting plate and the second connecting plate. The utility model discloses a node is provided with control node turned angle's interlock stopper, and this interlock stopper has both realized the connection of node, makes node pivoted angle again. By adjusting the areas of the first bulge and the second bulge, the control of the maximum angle of node rotation can be realized, and the controllability of extreme displacement is further realized.

Description

Displacement-controllable assembled frame node

Technical Field

The utility model belongs to the technical field of structural engineering, concretely relates to controllable assembled frame node of displacement.

Background

The difficulty in popularizing the assembly type structure at present is that the connection point of the assembly type structure has poor anti-seismic performance, high installation precision, inconvenient replacement, uncontrollable performance and other factors. At present, although a node is additionally provided with prestressed tendons or other energy consumption elements, the following problems still exist: the node assembled by only adopting the prestressed tendons has insufficient energy consumption capacity; the nodes of energy dissipation parts such as common steel bars, friction steel plates and the like are arranged, so that the construction is inconvenient or the replacement and repair are difficult; the node provided with the energy dissipater has better energy dissipation capability, and the energy dissipater with the self-resetting function has certain self-resetting capability, but the design method has the defects of realizing 'small earthquake damage prevention, medium earthquake repairable and large earthquake collapse'; the node destruction mode is difficult to guarantee the design requirement of 'strong node and weak member'. Therefore, aiming at the problems that the existing node is complex in structure, the failure mode is difficult to determine, the component is difficult to replace and the like, the design of the prefabricated component node which is simple in structure, convenient to replace, controllable in failure mode and controllable in installation distance is urgently needed.

Disclosure of Invention

Not enough to prior art existence, the utility model aims at providing a controllable assembled frame node of displacement solves current frame node and has the problem that the component replacement is difficult, node failure mode is uncontrollable and the structure is complicated.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

a displacement-controllable assembled frame node comprises a limiting part and an energy consumption part, wherein the limiting part is used for limiting the rotation angle of the node; the limiting part comprises a first connecting plate, a second connecting plate, an occlusion limiting block and a connecting shaft; the first connecting plate is provided with a U-shaped opening for the second connecting plate to be inserted into; the first connecting plate and the second connecting plate are respectively provided with a first connecting hole and a second connecting hole for the connecting shaft to pass through; the occlusion limiting block comprises first bulges arranged on two inner surfaces of the U-shaped opening and second bulges arranged on two sides of the second connecting plate, and the first bulges and the second bulges are distributed around the connecting shaft; and a movable interval is arranged between the first bulge and the second bulge on the same side;

and two ends of the energy consumption piece are respectively connected to the first connecting plate and the second connecting plate.

Specifically, the first connecting plate comprises a first bottom plate and two first ear plates connected to the first bottom plate in parallel, the U-shaped opening is formed between the two first ear plates, first protrusions are symmetrically arranged on the inner sides of the two first ear plates, a gap for the second ear plate to insert is formed between the two first protrusions, the two first ear plates are provided with the first connecting holes, and the first protrusions are arranged around the first connecting holes;

the second connecting plate include the second bottom plate and connect the second otic placode on the second bottom plate, second otic placode bilateral symmetry be provided with the second arch, be provided with on the second otic placode the second connecting hole, the second arch sets up around the second connecting hole.

Preferably, the first protrusion and the second protrusion are both fan-shaped.

Specifically, the first bottom plate and the second bottom plate are respectively provided with a third connecting hole and a fourth connecting hole which are used for being connected with the anchoring ribs.

Furthermore, the limiting piece also comprises an eccentric connecting shaft, and an eccentric hole is formed in the eccentric connecting shaft; the outer diameter of the eccentric connecting shaft is matched with the inner diameter of the second connecting hole, and the diameter of the eccentric hole is matched with that of the connecting shaft; the length of the eccentric connecting shaft along the axial direction enables the eccentric connecting shaft to be clamped in the U-shaped opening.

Specifically, the energy dissipation part comprises two C-shaped plate groups arranged on two sides of the limiting part, each C-shaped plate group consists of two C-shaped plates symmetrically arranged, and fifth connecting holes are formed in two end plates of each C-shaped plate.

Specifically, the energy dissipation part is of a fence type structure and comprises a square frame and grids arranged in the square frame, and fifth connecting holes are formed in two ends of the square frame.

Furthermore, the frame node further comprises a steel pipe sleeve, threads used for being connected with a stress rib and a high-strength bolt in a beam structure are respectively arranged at two ends of the steel pipe sleeve, and a fifth connecting hole, a sixth connecting hole and a seventh connecting hole through which the steel pipe sleeve penetrates are respectively arranged on the energy dissipation part, the first connecting plate and the second connecting plate.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a node is provided with control node turned angle's interlock stopper, and this interlock stopper has both realized the connection of node, makes node pivoted angle again. By adjusting the areas of the first bulge and the second bulge, the control of the maximum angle of node rotation can be realized, and the controllability of extreme displacement is further realized.

(2) The node of the utility model has a double protection mechanism, firstly, the node is limited by the occlusion limit block to generate larger displacement; when the occlusion is damaged, the energy dissipation part serves as a second layer of protection, the deformation of the structure is continuously limited by the energy dissipation part, and when the energy dissipation part is damaged, the bearing capacity is finally borne only by the connecting shaft.

(3) The utility model discloses a frame node performance is controllable. The utility model discloses a moment of flexure of node has power consumption piece control, and the shear force is the joint spindle control again, can realize the design of the weak component of strong node through shape and the size of adjusting power consumption piece.

(4) The utility model discloses a be provided with eccentric connecting axle between first connecting plate and second connecting plate, the error displacement of the production of eccentric connecting axle when the radius of rotation at center is variable and then eliminate node structure installation.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

Fig. 1 is a schematic view of the overall structure of a node according to an embodiment of the present invention.

Fig. 2 is a schematic view of the overall structure of the node of different energy consumption components recorded in the embodiment of the present invention.

Fig. 3 is an exploded view of a node according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a first connection plate according to an embodiment of the present invention.

Fig. 5 shows a first connecting plate having only one first ear plate according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a second connection plate according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a C-shaped energy dissipation member according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a grid-type energy dissipation member according to an embodiment of the present invention.

The reference numerals in the figures denote:

1-a limiting part, 2-an energy dissipation part, 3-a steel pipe sleeve, 4-an anchoring rib, 5-a stress rib and 6-a high-strength bolt;

11-a first connecting plate, 12-a second connecting plate, 13-an occlusion limiting block, 14-a connecting shaft and 15-an eccentric connecting shaft;

111-a first base plate, 112-a first ear plate, 113-a first protrusion, 114-a gap, 115-a U-shaped opening, 116-a first connection hole, 117-a third connection hole, 118-a sixth connection hole;

121-a second base plate, 122-a second ear plate, 123-a second protrusion, 124-a second connection hole, 125-a fourth connection hole, 126-a seventh connection hole;

151-eccentric orifice; 21-fifth connection hole.

The following detailed description of the present invention is provided in connection with the accompanying drawings and the detailed description of the invention.

Detailed Description

The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, bottom, top" and "lower" generally refer to the definition in the drawing figures of the accompanying drawings, and "inner and outer" refer to the inner and outer contours of the corresponding parts.

The utility model discloses an in the embodiment discloses a controllable assembled frame node of displacement, this nodal connection is between two sections roof beams, mainly can be used for avoiding the beam column node impaired after the earthquake. As shown in fig. 1, the frame node of the present embodiment includes a limiting member 1 and an energy consumption member 2, where the limiting member 1 is used to limit a rotation angle of the node.

The limiting piece 1 comprises a first connecting plate 11, a second connecting plate 12, an occlusion limiting piece 13 and a connecting shaft 14; the first connecting plate 11 and the second connecting plate 12 are respectively connected to two structural beam ends to be connected, and the connecting shaft of the embodiment is specifically a pin shaft.

As shown in fig. 3, the first connecting plate 11 is provided with a U-shaped opening 115 into which the second connecting plate 12 is inserted; the first connecting plate 11 and the second connecting plate 12 are respectively provided with a first connecting hole 116 and a second connecting hole 124 for the connecting shaft 14 to pass through; the engagement limiting block 13 comprises first protrusions 113 arranged on two inner surfaces of the U-shaped opening 115 and second protrusions 123 arranged on two sides of the second connecting plate 12, and the first protrusions 113 and the second protrusions 123 are distributed around the connecting shaft 14; and a movable interval exists between the first protrusion 113 and the second protrusion 123 on the same side, so that the rotation range of the whole node is adjustable.

As a preferred embodiment of the present invention, as shown in fig. 4 and 5, the first connecting plate 11 includes a first base plate 111 and two first ear plates 112 connected to the first base plate 111 in parallel, and specifically, the first ear plates 112 are vertically welded to the first base plate 111. An arc surface is arranged above the first bottom plate 111. Form U type opening 115 between two first otic placodes 112, the relative inner face symmetry of two first otic placodes 112 is provided with first arch 113, and is provided with between two first archs 113 and supplies the second otic placode male clearance 114, is provided with first connecting hole 116 on two first otic placodes 112, and first arch 113 sets up around first connecting hole 116.

As shown in fig. 6, the second connecting plate 12 includes a second bottom plate 121 and a second ear plate 122 connected to the second bottom plate 121, specifically, the second ear plate 122 is vertically welded on the second bottom plate 121, and a circular arc surface is disposed on a top of the second ear plate 122. The second lug plate 122 is symmetrically provided with second protrusions 123 at two sides, the second lug plate 122 is provided with second connecting holes 124, and the second protrusions 123 are arranged around the second connecting holes 124.

Preferably, the first protrusion 113 and the second protrusion 123 in the present embodiment are both fan-shaped. The first protrusion 113 and the second protrusion 123 are shaped identically, only the width of the two sectors being different. When the first connecting plate 11 and the second connecting plate 12 are connected through the connecting shaft 14, the first protrusion 113 and the second protrusion 123 are engaged, and a rotating gap exists between the first protrusion 113 and the second protrusion 123. Therefore, by adjusting the areas of the first protrusion 113 and the second protrusion 123, the control of the node rotation angle can be achieved.

In addition, third and

fourth connection holes

117 and 125 for connection with the anchoring ribs 4 are provided on the first and

second bottom plates

111 and 121, respectively. Specifically, the middle portions of the first bases 111 on both sides of the first ear plate are respectively provided with a third connecting hole 117, and similarly, the fourth connecting holes 125 are also provided in the middle portions of the second bases 121 on both sides of the second ear plate.

The two ends of the energy consumption component 2 are respectively connected to the first connecting plate 11 and the second connecting plate 12. Specifically, in this embodiment, two ends of the energy consumption member 2 are respectively connected to the first bottom plate 111 and the second bottom plate 121 through bolts.

In an embodiment of the present invention, as shown in fig. 2, the energy dissipation member 2 includes two C-shaped plate sets disposed on two sides of the position limiting member, each C-shaped plate set is composed of two C-shaped plates symmetrically disposed, and the two end plates of the C-shaped plate are provided with fifth connecting holes 21, as shown in fig. 7. The C-shaped plate is bolted to the first and second

bottom plates

111 and 121 through the fifth connection holes 21.

In another alternative embodiment of the present invention, as shown in fig. 8, the energy dissipation member 2 is a fence structure, and includes a square frame and a grid disposed in the square frame, and the two ends of the square frame are provided with fifth connection holes 21. The fence type energy dissipation member 2 is bolted to the first base plate 111 and the second base plate 121 through the fifth connection hole 21.

The bending rigidity of the whole plane of the fence type energy dissipation part is larger than that of the C-shaped energy dissipation part, but the fence type energy dissipation part needs to be welded, the C-shaped energy dissipation part is simple in structure and can be directly formed by bending a single steel sheet, therefore, the structure is stressed frequently, the C-shaped energy dissipation part is recommended to be installed at the position needing to be replaced frequently, and the rigidity and the yield load of the node can be controlled by changing the thickness and the area of the opening hole of the plate.

Further, as the preferred embodiment of the present invention, the limiting member 1 further includes an eccentric connecting shaft 15, as shown in fig. 3, an eccentric hole 151 is provided on the eccentric connecting shaft 15. The outer diameter of the eccentric connecting shaft 15 is matched with the inner diameter of the second connecting hole 124 so that the eccentric connecting shaft 15 can be clamped in the second connecting hole 124. The diameter of the eccentric hole 151 matches the diameter of the connecting shaft 14 so that the connecting shaft is connected in the eccentric hole and the first connecting hole. The length of the eccentric connecting shaft 15 along the axial direction enables the eccentric connecting shaft to be clamped in the U-shaped opening 115, specifically, the length of the eccentric connecting shaft 15 is slightly smaller than the opening width of the U-shaped opening 115, after the eccentric connecting shaft 15 is installed, two ends of the eccentric connecting shaft 15 directly abut against the inner faces of the two first lug plates 112, and therefore the two ends of the eccentric connecting shaft 15 can be prevented from laterally moving when rotating. The present embodiment eliminates an error displacement generated when the fabricated structure is installed by providing the eccentric connecting shaft 15 between the first connecting hole 116 and the second connecting hole 124, and by making a rotation radius of the eccentric connecting shaft 15 according to the center variable.

Further, as the utility model discloses a preferred embodiment, this frame node still includes steel-pipe sleeve 3, as shown in fig. 3, the both ends of steel-pipe sleeve 3 are provided with respectively and are used for the screw thread of being connected with stress bar 5 and high strength bolt 6 among the beam structure, are provided with fifth connecting hole 21, sixth connecting hole 118 and seventh connecting hole 12 on power consumption spare 2, first connecting plate 11, the second connecting plate 12 respectively.

The end of the stress rib 5 is carved and mechanically connected with one end of the steel sleeve 3, and the other end of the steel sleeve passes through the fifth connecting hole 21, the sixth connecting hole 118 and the seventh connecting hole 12 to be connected with the first connecting plate 11 and the second connecting plate 12 through bolts.

In the above description, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be understood broadly, and may be, for example, fixedly connected or detachably connected or integrated; either a direct connection or an indirect connection, and the like. The specific meaning of the above terms in the present technical solution can be understood by those of ordinary skill in the art according to specific situations.

The various features described in the foregoing detailed description can be combined in any suitable manner without departing from the spirit of the invention, and should also be construed as disclosed in the invention.

Claims

1. The displacement-controllable assembled frame node is characterized by comprising a limiting piece (1) and an energy consumption piece (2) which are used for limiting the rotation angle of the node;

the limiting piece (1) comprises a first connecting plate (11), a second connecting plate (12), an occlusion limiting piece (13) and a connecting shaft (14);

the first connecting plate (11) is provided with a U-shaped opening (115) for inserting the second connecting plate (12); the first connecting plate (11) and the second connecting plate (12) are respectively provided with a first connecting hole (116) and a second connecting hole (124) for the connecting shaft (14) to pass through;

the occlusion limiting block (13) comprises first protrusions (113) arranged on two inner surfaces of the U-shaped opening (115) and second protrusions (123) arranged on two sides of the second connecting plate (12), and the first protrusions (113) and the second protrusions (123) are distributed around the connecting shaft (14); and a movable interval is arranged between the first projection (113) and the second projection (123) on the same side;

two ends of the energy consumption piece (2) are respectively connected to the first connecting plate (11) and the second connecting plate (12).

2. The displacement-controllable fabricated frame node as claimed in claim 1, wherein the first connecting plate (11) comprises a first bottom plate (111) and two first ear plates (112) connected to the first bottom plate (111) in parallel, the two first ear plates (112) form the U-shaped opening (115) therebetween, first protrusions (113) are symmetrically arranged on the inner sides of the two first ear plates (112), a gap (114) for the second ear plate to insert is arranged between the two first protrusions (113), the two first ear plates (112) are provided with the first connecting holes (116), and the first protrusions (113) are arranged around the first connecting holes (116);

the second connecting plate (12) comprises a second bottom plate (121) and a second lug plate (122) connected to the second bottom plate (121), second protrusions (123) are symmetrically arranged on two sides of the second lug plate (122), second connecting holes (124) are formed in the second lug plate (122), and the second protrusions (123) are arranged around the second connecting holes (124).

3. A displacement controllable fabricated frame node according to claim 1 or 2, characterized in that the first (113) and second (123) protrusions are fan-shaped.

4. The displacement-controllable fabricated frame node as claimed in claim 2, wherein the first bottom plate (111) and the second bottom plate (121) are respectively provided with a third connecting hole (117) and a fourth connecting hole (125) for connecting with the anchoring rib (4).

5. The displacement-controllable fabricated frame node of claim 1, wherein the limiting member (1) further comprises an eccentric connecting shaft (15), and the eccentric connecting shaft (15) is provided with an eccentric hole (151); the outer diameter of the eccentric connecting shaft (15) is matched with the inner diameter of the second connecting hole (124), and the diameter of the eccentric hole (151) is matched with that of the connecting shaft (14); the length of the eccentric connecting shaft (15) along the axial direction enables the eccentric connecting shaft to be clamped in the U-shaped opening (115).

6. A displacement controllable fabricated frame node according to claim 1, characterized in that the dissipative element (2) comprises two C-shaped plate sets arranged on both sides of the restraining element, each C-shaped plate set consisting of two symmetrically arranged C-shaped plates, wherein the C-shaped plates are provided with fifth connecting holes (21) on both end plates.

7. The displacement-controllable fabricated frame node as claimed in claim 1, wherein the energy dissipation member (2) is a fence-type structure comprising a square frame and a grid arranged in the square frame, and fifth connection holes (21) are formed at both ends of the square frame.

8. The displacement-controllable fabricated frame node as claimed in claim 1, further comprising a steel pipe sleeve (3), wherein threads for connecting with a stress bar (5) and a high-strength bolt (6) in a beam structure are respectively arranged at two ends of the steel pipe sleeve (3), and a fifth connecting hole (21), a sixth connecting hole (118) and a seventh connecting hole (126) through which the steel pipe sleeve passes are respectively arranged on the energy dissipation member (2), the first connecting plate (11) and the second connecting plate (12).