CN110359590B - Dual buckling-restrained connector for lateral connection of primary and secondary structures - Google Patents
Dual buckling-restrained connector for lateral connection of primary and secondary structures Download PDFInfo
- Publication number
- CN110359590B CN110359590B CN201910603304.XA CN201910603304A CN110359590B CN 110359590 B CN110359590 B CN 110359590B CN 201910603304 A CN201910603304 A CN 201910603304A CN 110359590 B CN110359590 B CN 110359590B
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- plate
- cover plate
- connector
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- core
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- 230000009977 dual effect Effects 0.000 title claims description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention aims to provide a double buckling-restrained connector for laterally connecting a primary structure and a secondary structure, which is characterized by mainly comprising a connecting plate I, a connecting plate II, a core plate and the like. One end of the connecting plate I is connected with the end plate I. One side plate surface of the end plate I is connected with the connecting plate I, and the other side plate surface is connected with the stiffening rib I. The stiffening rib I is connected with the end plate I and then is of a T-shaped structure. The inner padding plate I, the inner padding plate II, the two outer padding plates II, the outer padding plate II, the inner padding plate I, the two outer padding plates I and the outer padding plate I are all provided with a plurality of bolt through holes penetrating through the upper plate surface and the lower plate surface of the inner padding plate I. When a plurality of bolts are adopted for connection, each bolt sequentially penetrates through the through holes in the outer cover plate I, the outer base plate I, the inner cover plate II, the outer base plate II and the outer cover plate II from top to bottom and is fastened through nuts.
Description
Technical Field
The present invention relates to building elements.
Background
For the lateral connection mode of the main structure and the secondary structure, if the common steel beam is adopted for connection, the interaction between the main structure and the secondary structure is uncontrollable under the action of an earthquake, and the secondary structure can generate larger horizontal force on the middle part of the main structure column, so that the damage of the main structure column is aggravated. The distance between the main structure and the secondary structure is smaller (below 500 mm), and the traditional buckling restrained brace cannot be used.
Disclosure of Invention
The invention aims to provide a double buckling-restrained connector for laterally connecting a primary structure and a secondary structure, which is characterized by mainly comprising a connecting plate I, a connecting plate II, a core plate and the like.
One end of the connecting plate I is connected with the end plate I. One side plate surface of the end plate I is connected with the connecting plate I, and the other side plate surface is connected with the stiffening rib I. The stiffening rib I is connected with the end plate I and then is of a T-shaped structure.
One end of the connecting plate II is connected with the end plate II. And one side plate surface of the end plate II is connected with the connecting plate II, and the other side plate surface is connected with the stiffening rib II. The stiffening rib II is connected with the end plate II and then is of a T-shaped structure.
The core plate is positioned between the end plate I and the end plate II, and the two ends of the core plate are respectively connected with T-shaped structures on the two sides after being grooved.
And two sides of the core plate are respectively provided with an inner backing plate I.
And an inner cover plate II, two outer base plates II and an outer cover plate II are arranged below the core plate.
And an inner cover plate I, two outer base plates I and an outer cover plate I are arranged above the core plate.
The inner padding plate I, the inner padding plate II, the two outer padding plates II, the outer padding plate II, the inner padding plate I, the two outer padding plates I and the outer padding plate I are all provided with a plurality of bolt through holes penetrating through the upper plate surface and the lower plate surface of the inner padding plate I.
When a plurality of bolts are adopted for connection, each bolt sequentially penetrates through the through holes in the outer cover plate I, the outer base plate I, the inner cover plate II, the outer base plate II and the outer cover plate II from top to bottom and is fastened through nuts.
Further, the two sides of the core plate are provided with positioning bolts. The side surface of the inner backing plate I facing the core plate side is provided with a positioning groove matched with the positioning bolt.
Further, both sides of the inner cover plate I and the inner cover plate II are provided with grooves. The slot mates with the T-shaped structure.
Further, the core plate is wrapped or smeared with non-binding materials.
Further, a gap of 0.5mm-1mm is reserved between the core plate and the inner cover plate I.
Further, the unbonded material is a polytetrafluoroethylene plate.
Further, the outer backing plate I is equal in thickness to the outer backing plate II. The inner cover plate I and the inner cover plate II are equal in thickness. And the outer cover plate I and the outer cover plate II are equal in thickness.
Further, the connecting plate I and the connecting plate II are respectively connected with the primary and secondary structural columns.
Further, the middle of the core plate is a rectangular part, and two ends of the core plate are connecting parts. Rounded from the connection portions such that the width of the core plate is reduced so as to gradually transition to rectangular portions.
Further, the upper ends of the stiffening ribs I are higher than the upper surface of the inner decking I.
The lower end of the stiffening rib I is lower than the lower surface of the inner cover plate II.
The upper end of the stiffening rib II is higher than the upper surface of the inner cover plate I.
The lower end of the stiffening rib II is lower than the lower surface of the inner cover plate II.
The invention has the technical effects that the node plates at the two ends of the connector are connected with the primary and secondary structures through the pin shafts, the inner cover plate can limit the out-of-plane deformation of the middle part of the core plate when being pressed, the outer cover plate can limit the out-of-plane deformation of the core plate leakage part and the stiffening ribs, the out-of-plane buckling of the core unit is prevented, and the core plate is fully stressed and yields. In addition, the non-adhesive material can reduce the friction force between the core plate and the inner cover plate, and the positioning bolts can ensure that the relative positions of the core unit and the outer constraint unit are kept unchanged when the connector is stressed. The connector can be applied to the connection between primary and secondary structures with a pitch of 500mm or less.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a diagram of a test equipment connection;
FIG. 4 is a photograph of a broken core plate
FIG. 5 load-displacement curve
FIG. 6 is a skeleton curve.
In the figure: connecting plate I (1), connecting plate II (10), end plate I (2), end plate II (20), stiffening rib I (3), stiffening rib II (30), outer cover plate I (4), outer cover plate II (40), inner cover plate I (5), inner cover plate II (50), inner backing plate I (6), core plate (7), locating bolts (8), high-strength bolts (9), outer backing plate I (101) and outer backing plate II (102).
Detailed Description
The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.
Example 1:
a double buckling-restrained connector for laterally connecting a primary structure and a secondary structure is characterized by mainly comprising a connecting plate I1, a connecting plate II10, a core plate 7 and the like.
One end of the connecting plate I1 is connected with the end plate I2. One side plate surface of the end plate I2 is connected with the connecting plate I1, and the other side plate surface is connected with the stiffening rib I3. The stiffening rib I3 is connected with the end plate I2 and then is of a T-shaped structure.
One end of the connecting plate II10 is connected with an end plate II20. One side plate surface of the end plate II20 is connected with the connecting plate II10, and the other side plate surface is connected with the stiffening rib II30. The stiffening rib II30 is connected with the end plate II20 and is of a T-shaped structure.
The core plate 7 is positioned between the end plate I2 and the end plate II20, and two ends of the core plate are respectively connected with T-shaped structures on two sides after being grooved.
The two sides of the core plate 7 are respectively provided with an inner backing plate I6.
Below the core plate 7 are an inner decking II50, two outer decking II102 and an outer decking II40.
Above the core plate 7 are an inner cover plate I5, two outer backing plates I101 and an outer cover plate I4. The core plate 7 has locating pegs 8 (like triangular protrusions) on both sides. The side of the inner pad I6 facing the core plate 7 has a positioning groove (similar to a triangular notch) matching with the positioning pin 8. The middle of the core plate 7 is a rectangular part, and the two ends are connecting parts. Rounded from the connection portions so that the width of the core plate 7 is reduced to gradually transition to rectangular portions. I.e. the connection of the two ends of the core plate 7 with the end plates I2 and II20, respectively, is the end of the connection, which is the widest part of the core plate 7. From this widest point, the width of the core plate 7 is gradually reduced.
The inner backing plate I6, the inner cover plate II50, the two outer backing plates II102, the outer cover plate II40, the inner cover plate I5, the two outer backing plates I101 and the outer cover plate I4 are all provided with a plurality of bolt through holes penetrating through the upper plate surface and the lower plate surface.
When a plurality of bolts 9 are adopted for connection, each bolt sequentially passes through the through holes on the outer cover plate I4, the outer base plate I101, the inner base plate I5, the inner base plate I6, the inner base plate II50, the outer base plate II102 and the outer base plate II40 from top to bottom and is fastened through nuts.
The inner deck I5 and the inner deck II50 have grooves on both sides thereof. The slot mates with the T-shaped structure.
A gap of 1mm is reserved between the core plate 7 and the inner cover plate I5. The core plate 7 is wrapped or coated with an unbonded material (polytetrafluoroethylene layer).
The upper ends of the stiffening ribs I3 are higher than the upper surface of the inner cover plate I5. The lower ends of the stiffeners I3 are lower than the lower surface of the inner decking II 50. The upper ends of the stiffening ribs II30 are higher than the upper surface of the inner decking I5. The lower ends of the stiffeners II30 are lower than the lower surface of the inner decking II 50.
The two ends of the outer cover plate I4, the outer cover plate II40, the inner cover plate I5, the inner cover plate II50, the inner base plate I6, the positioning bolts 8, the outer base plate I101 and the outer base plate II102 are not contacted with the end plate I2 and the end plate II20 respectively.
Example 2:
the main structure of this embodiment is the same as that of embodiment 1, specifically:
the connector of the embodiment is subjected to mechanical experiment
Referring to fig. 3, the connector was placed in a hydraulic servo with a range of 300kN and a pull-press cycle test was performed. The test piece can still keep a vertical state when the compression displacement is 8 mm.
Referring to fig. 4, when the tensile displacement is 8mm, the connector breaking form is that the core plate is broken, which means that the dual buckling-restrained connector can effectively restrict the out-of-plane deformation of the core unit, prevent the out-of-plane buckling, and fully stress the core plate.
Referring to fig. 5, the load was obtained by a tension-compression cycle test as a function of the axial deformation of the connector.
Referring to fig. 6, the peak points of the first cycle of loading of each stage of fig. 5 are connected to form a skeleton curve.
From fig. 5 and 6, it can be seen that the load of the test piece after yielding is slowly increased, the hysteresis curve is full, the test piece has better ductility and energy consumption capability, and the expected technical effect is achieved.
Claims (10)
1. The double buckling-restrained connector for laterally connecting a primary structure and a secondary structure is characterized by comprising a connecting plate I (1), a connecting plate II (10) and a core plate (7);
one end of the connecting plate I (1) is connected with the end plate I (2); one side plate surface of the end plate I (2) is connected with the connecting plate I (1), and the other side plate surface is connected with the stiffening rib I (3); the stiffening rib I (3) is connected with the end plate I (2) and then is of a T-shaped structure;
one end of the connecting plate II (10) is connected with an end plate II (20); one side plate surface of the end plate II (20) is connected with the connecting plate II (10), and the other side plate surface is connected with the stiffening rib II (30); the stiffening rib II (30) is connected with the end plate II (20) and is of a T-shaped structure;
the core plate (7) is positioned between the end plate I (2) and the end plate II (20), and two ends of the core plate are grooved and then are respectively connected with T-shaped structures on two sides;
two sides of the core plate (7) are respectively provided with an inner backing plate I (6);
an inner cover plate II (50), two outer base plates II (102) and an outer cover plate II (40) are arranged below the core plate (7);
an inner cover plate I (5), two outer base plates I (101) and an outer cover plate I (4) are arranged above the core plate (7);
the inner padding plate I (6), the inner padding plate II (50), the two outer padding plates II (102), the outer padding plate II (40), the inner padding plate I (5), the two outer padding plates I (101) and the outer padding plate I (4) are all provided with a plurality of bolt through holes penetrating through the upper plate surface and the lower plate surface;
when a plurality of bolts (9) are adopted for connection, each bolt sequentially passes through holes in the outer cover plate I (4), the outer base plate I (101), the inner base plate I (5), the inner base plate I (6), the inner base plate II (50), the outer base plate II (102) and the outer cover plate II (40) from top to bottom and is fastened through nuts.
2. A dual buckling restrained connector for lateral attachment of primary and secondary structures as set forth in claim 1 wherein: positioning bolts (8) are arranged on two sides of the core plate (7); the side surface of the inner backing plate I (6) facing the side of the core plate (7) is provided with a positioning groove matched with the positioning bolt (8).
3. A dual buckling restrained connector for lateral attachment of primary and secondary structures as claimed in claim 2 wherein: the two sides of the inner cover plate I (5) and the inner cover plate II (50) are provided with grooves.
4. A dual buckling restrained connector for lateral attachment of primary and secondary structures as set forth in claim 3 wherein: the periphery of the core plate (7) is wrapped or smeared with non-binding materials.
5. A dual buckling restrained connector for lateral attachment of primary and secondary structures as claimed in claim 3 or 4 wherein: the core plate (7) is spaced from the inner cover plate I (5).
6. A dual buckling restrained connector for lateral attachment of primary and secondary structures as set forth in claim 4 wherein: the unbonded material is a polytetrafluoroethylene plate.
7. A dual buckling restrained connector for lateral attachment of primary and secondary structures as claimed in claim 1 or 4 wherein: the outer backing plate I (101) and the outer backing plate II (102) are equal in thickness; the inner cover plate I (5) and the inner cover plate II (50) are equal in thickness; the outer cover plate I (4) is equal in thickness to the outer cover plate II (40).
8. A dual buckling restrained connector for lateral attachment of primary and secondary structures as claimed in claim 1 or 4 wherein: the connecting plate I (1) and the connecting plate II (10) are respectively connected with the primary and secondary structural columns.
9. A dual buckling restrained connector for lateral attachment of primary and secondary structures as claimed in claim 1 or 4 wherein: the middle of the core plate (7) is a rectangular part, and the two ends of the core plate are connecting parts.
10. A dual buckling restrained connector for lateral attachment of primary and secondary structures as claimed in claim 1 or 4 wherein:
the upper end of the stiffening rib I (3) is higher than the upper surface of the inner cover plate I (5);
the lower end of the stiffening rib I (3) is lower than the lower surface of the inner cover plate II (50);
the upper end of the stiffening rib II (30) is higher than the upper surface of the inner cover plate I (5);
the lower end of the stiffening rib II (30) is lower than the lower surface of the inner cover plate II (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603304.XA CN110359590B (en) | 2019-07-05 | 2019-07-05 | Dual buckling-restrained connector for lateral connection of primary and secondary structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603304.XA CN110359590B (en) | 2019-07-05 | 2019-07-05 | Dual buckling-restrained connector for lateral connection of primary and secondary structures |
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| Publication Number | Publication Date |
|---|---|
| CN110359590A CN110359590A (en) | 2019-10-22 |
| CN110359590B true CN110359590B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910603304.XA Active CN110359590B (en) | 2019-07-05 | 2019-07-05 | Dual buckling-restrained connector for lateral connection of primary and secondary structures |
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| Publication number | Publication date |
|---|---|
| CN110359590A (en) | 2019-10-22 |
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