CN211200041U - Anti-seismic device on pier column - Google Patents
Anti-seismic device on pier column Download PDFInfo
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- CN211200041U CN211200041U CN201921389766.8U CN201921389766U CN211200041U CN 211200041 U CN211200041 U CN 211200041U CN 201921389766 U CN201921389766 U CN 201921389766U CN 211200041 U CN211200041 U CN 211200041U
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Abstract
The utility model relates to an anti-seismic device on pier post belongs to road construction technical field. Including top bridge floor, pier lower prop, cylinder type steel embedded column spare, cylinder shaped steel support piece, compression-resistant rubber, circular recess A, circular recess B, go up the post connecting piece, lower post connecting piece, power consumption spring, the outer flitch of annular memory alloy, corresponding circular recess A has all been seted up with pier lower prop top to top bridge floor bottom, cylinder shaped steel embedded column spare is equipped with compression-resistant rubber with cylinder shaped steel support piece, vertical anti-seismic device outside is equipped with lower post connecting piece, lower post connecting piece's outside cover has last post connecting piece, it is equipped with power consumption spring to go up between post connecting piece and the lower post connecting piece, goes up the post connecting piece, is equipped with the outer flitch of annular memory alloy in the lower post connecting piece outside. The utility model discloses overall stability is high, improves anti-seismic performance greatly under the prerequisite of guaranteeing pier stud normal function, and simple structure, simple to operate, improves the practical application of pier stud in the antidetonation field.
Description
Technical Field
The utility model belongs to the technical field of the road construction, especially, relate to an anti-seismic device on pier post.
Background
The medium and small span beam bridge has very wide application in China and is an extremely important component in increasingly developed road traffic networks in China. The cylindrical pier is one of the lower structure forms commonly adopted by the bridge, the cylindrical pier is fixedly connected with the bearing platform, and the load transmitted by the upper structure of the bridge is finally transmitted to the foundation through the cylindrical pier, so that the whole bridge structure can be normally used. At present, the existing 'design rules for earthquake resistance of highway bridges' and 'design specifications for earthquake resistance of urban bridges' in China require that the middle-small span beam type bridge is kept elastic under the action of an E1 earthquake, damage is allowed to occur under the action of an E2 earthquake, and plastic hinges are allowed to occur on piers. However, in the large earthquake of Wenchuan in 2008 and the large earthquake of Yushu in 2010, many small and medium span girder bridges suffer different degrees of damage, wherein the bottom of a single-column pier is cracked or the connecting part of a double-column pier beam and a pier column is cracked (such as a temple plateau bridge, a Zen ancient temple bridge and the like), which is one of the most common damage forms of the lower structure of the bridge. The large bending deformation of the pier can be caused by the excessive shearing force transferred to the pier by the bridge superstructure in the earthquake, or the large inertia force generated by the pier in the earthquake due to the high height or large mass of the pier, and once the bearing capacity of the pier is exceeded, the pier is cracked by a light person and broken by a heavy person. Therefore, the bridge piers of the existing medium-small span beam type bridge in China can not meet the requirement of earthquake resistance far, and earthquake resistance reinforcement is needed. For this situation, there are two main ways of seismic mitigation and isolation measures that are usually adopted: firstly, seismic isolation and reduction supports are adopted at the connection position of the pier and the beam, and damping devices such as viscous dampers, elastic-plastic steel dampers and the like are additionally arranged, so that seismic load transmitted to the pier by an upper structure is reduced; and secondly, concrete or steel pipes are adopted to wrap the bottom of the pier so as to increase the section bearing capacity of the bottom of the pier, and the bottom of the pier has enough capacity to resist earthquake load. However, both of these approaches have certain disadvantages: the first mode needs to install shock absorption and isolation supports with higher price, the additional installation of the shock absorption and isolation devices requires enough space between pier beams, and traffic must be suspended during replacement, but the mode has no obvious shock absorption effect on piers with higher pier heights and larger self-mass; the second mode is implemented by interrupting traffic, curing the poured concrete if the concrete is used, so that the whole reinforcement period is long, the connection performance of the steel pipe and the concrete is not easy to guarantee if the steel pipe is used, and finally, the mode can increase the earthquake-resistant requirement of the bearing platform foundation and can damage the bearing platform foundation under the action of an earthquake.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide an anti-seismic device on pier post, can prefabricated processing, assemble fast, the low price, the dependable performance, under the condition that does not influence bridge normal use, can control the level and the vertical displacement of pier under the earthquake action, dissipation seismic energy improves the anti-seismic performance of pier to one step reduce the earthquake demand to the basis.
The utility model adopts the technical scheme as follows:
an anti-seismic device on a pier column comprises a top bridge floor, a pier lower column, a cylindrical steel embedded column piece, a cylindrical steel supporting piece, compression-resistant rubber, a circular groove A, a circular groove B, an upper column connecting piece, a lower column connecting piece, an energy-consuming spring and an annular memory alloy outer attachment plate, wherein the anti-seismic device on the pier column comprises a vertical anti-seismic device and a horizontal anti-seismic device; the vertical anti-seismic device is arranged between a top bridge floor and a pier lower column, the bottom of the top bridge floor and the top of the pier lower column are provided with corresponding circular grooves A, cylindrical steel embedded column members are arranged in the circular grooves A, the cylindrical steel embedded column members are matched with the circular grooves A with the circular radius equal to the circular radius, cylindrical steel supporting members are arranged between the upper cylindrical steel embedded column member and the lower cylindrical steel embedded column member, the cylindrical steel embedded column members and the cylindrical steel supporting members are of identical cylindrical structures, the to-be-connected surfaces of the cylindrical steel embedded column members and the two side surfaces of the cylindrical steel supporting members are provided with circular grooves B, the cylindrical steel embedded column members and the cylindrical steel supporting members are provided with anti-seismic rubber, the anti-seismic rubber is arranged in the circular grooves B, the cross section of the rubber is matched with the cross section of the circular grooves B, and the outer part of the, the lower column connecting piece is of an annular barrel-shaped structure, the lower column connecting piece is sleeved outside the cylindrical steel embedded column piece and the cylindrical steel supporting piece and fixedly connected with a lower column of the pier, the outer sleeve of the lower column connecting piece is provided with an upper column connecting piece, the upper column connecting piece is fixedly connected with the bottom surface of the top bridge floor, the upper column connecting piece is of a barrel-shaped structure, the diameter of the upper column connecting piece is larger than that of the lower column connecting piece, an energy dissipation spring is arranged between the upper column connecting piece and the lower column connecting piece, an annular memory alloy outer attachment plate is arranged on the outer side of the upper column connecting piece and the outer side of the lower column connecting piece, and the annular memory alloy outer attachment plate.
Furthermore, a circle of bottom flange is arranged on the periphery of the bottom of the lower column connecting piece, and the bottom flange of the lower column connecting piece is fixedly connected with the top of the lower column of the pier through self-tapping self-drilling screws.
Furthermore, the top of the upper column connecting piece is provided with a circle consistent with the cylindrical steel embedded column piece, a top flange is formed between the top of the upper column connecting piece and the edge of the upper column connecting piece, and the top flange of the upper column connecting piece is fixedly connected with the bottom of the top bridge deck through self-tapping self-drilling screws.
Furthermore, the annular memory alloy outer attachment plate is fixedly connected with the upper column connecting piece and the lower column connecting piece through self-tapping self-drilling screws.
Furthermore, six groups of energy dissipation springs are vertically arranged between the upper column connecting piece and the lower column connecting piece at the same position as the self-tapping self-drilling screw.
Furthermore, the lower column connecting piece is sleeved outside the cylindrical steel embedded column piece and the cylindrical steel supporting piece and is tightly attached to the cylindrical steel embedded column piece and the cylindrical steel supporting piece.
Furthermore, the compression-resistant rubber, the energy-consuming spring and the annular memory alloy outer attachment plate are all made of elastic materials and can restore to the original shape after displacement.
Furthermore, the height of the combination of the annular memory alloy outer attachment plate, the upper column connecting piece and the lower column connecting piece is consistent with that of the combination of the cylindrical steel embedded column piece, the cylindrical steel supporting piece and the compression-resistant rubber.
The utility model has the advantages that: the utility model discloses an anti-seismic device on pier post can guarantee under the circumstances of pier post stable in structure, when earthquake disaster takes place again, make the pier post can both carry out the displacement further power consumption in vertical and perpendicular square direction under the effect of spring and compression rubber, make the pier post make the energy consumption buffering back receiving earthquake disaster, can also resume the normal position under the effect of spring and rubber, the upper and lower connecting piece and the vertical damping device coordination effect of pier post, just the utility model discloses simple structure, stability is high, simple to operate dismantles maintenance and transportation convenience, promotes the anti-seismic performance of pier post greatly.
Drawings
FIG. 1 is a front view of the anti-seismic device on the pier stud of the present invention;
FIG. 2 is a detailed view of the structure of the anti-seismic device on the pier stud of the present invention;
FIG. 3 is a diagram of a vertical anti-seismic device composed of a cylindrical steel embedded column member, a cylindrical steel supporting member and compression-resistant rubber;
FIG. 4 is a schematic diagram of the splicing of a cylindrical steel embedded column member, a cylindrical steel supporting member and compression-resistant rubber;
FIG. 5 is a top view of the connection between the lower pier column and the lower column connector;
FIG. 6 is a cross-sectional view of the lateral seismic isolation device taken along line A-A of FIG. 2;
FIG. 7 is a schematic three-dimensional structure of a cylindrical section steel supporting member;
FIG. 8 is a schematic three-dimensional structure of an upper column connector;
fig. 9 is a three-dimensional structure diagram of the lower column connecting member.
In the figure: the steel pier comprises a top bridge floor 1, pier lower columns 2, cylindrical steel embedded column 3, cylindrical steel supporting pieces 4, compression-resistant rubber 5, circular grooves A6, circular grooves B7, upper column connecting pieces 8, top flanges 8-1, lower column connecting pieces 9-1, bottom flanges 9-1, energy-consuming springs 10, annular memory alloy outer attachment plates 11, self-tapping self-drilling screws 12 and connecting piece vertical empty grooves 13.
Detailed Description
For further explanation of the present invention, the following detailed description of the present invention is provided with reference to the drawings and examples, which should not be construed as limiting the scope of the present invention.
Example 1:
as shown in figures 1-9, an anti-seismic device on a pier column comprises a top bridge floor 1, a pier lower column 2, a cylindrical steel embedded column piece 3, a cylindrical section steel supporting piece 4, compression-resistant rubber 5, a circular groove A6, a circular groove B7, an upper column connecting piece 8, a top flange 8-1, a lower column connecting piece 9, a bottom flange 9-1, an energy-consuming spring 10, an annular memory alloy outer attachment plate 11, a self-tapping self-drilling screw 12 and a connecting piece vertical hollow groove 13, the anti-seismic device on the pier column comprises the vertical direction and the horizontal direction, the vertical anti-seismic device is arranged between the top bridge floor 1 and the pier lower column 2, circular grooves 6 are arranged at the bottom of the top bridge floor 1 and the top of the pier lower column 2, a cylindrical section steel embedded column piece 3 is arranged in a circular column structure with a solid circular cross section, the circular radius equal to the size of the circular groove A64, the cylindrical section steel embedded column pieces 3 and 4 are all of a cylindrical section steel embedded column structure, the cylindrical section steel embedded column piece 3 is arranged in the same direction as the cylindrical section steel embedded column connector, the cylindrical section steel embedded column connector 3, the cylindrical section steel embedded column connector is arranged in the top bridge floor 2, the horizontal direction of the cylindrical section steel embedded column connector, the cylindrical section steel embedded column connector 9 and the cylindrical section steel embedded column connector, the cylindrical section steel embedded column connector is arranged in the cylindrical section steel embedded column connector, the cylindrical section steel embedded column connector 9, the cylindrical section steel embedded column connector is arranged in the cylindrical section steel embedded column connector 4, the cylindrical section steel embedded column connector 4, the cylindrical section steel embedded column connector is arranged in the cylindrical section steel embedded column connector, the cylindrical section steel embedded column connector 9, the cylindrical section steel connector, the cylindrical section steel embedded column connector 4, the cylindrical steel connector is arranged in the cylindrical steel embedded column connector, the cylindrical steel embedded column connector 4, the cylindrical steel embedded column connector is arranged in the cylindrical steel connector 9, the cylindrical steel embedded column connector is arranged in the cylindrical steel embedded column connector, the cylindrical steel connector is arranged in the cylindrical steel embedded column connector.
The vertical anti-seismic device and the horizontal anti-seismic device do not influence each other and work in coordination, and the all-dimensional anti-seismic performance of the whole pier can be guaranteed.
Vertical antidetonation device when carrying out the displacement, vertical stability can be guaranteed to cylinder type steel embedded column spare 3, cylinder shaped steel support piece 4, and can carry out slight displacement in the horizontal direction by the material performance of compression-resistant rubber 5.
The lower column connecting piece 9 can ensure the position fixation of the vertical anti-seismic device while performing horizontal anti-seismic.
The compression-resistant rubber 5, the energy dissipation spring 10 and the annular memory alloy outer attachment plate 11 have elasticity, and the structure can be ensured to be restored after displacement.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an antidetonation device on pier post which characterized in that: the bridge pier comprises a top bridge deck (1), a lower bridge pier column (2), a cylindrical steel embedded column piece (3), a cylindrical steel supporting piece (4), compression-resistant rubber (5), a circular groove A (6), a circular groove B (7), an upper column connecting piece (8), a lower column connecting piece (9), an energy-consuming spring (10) and an annular memory alloy outer attachment plate (11), wherein an anti-seismic device on the bridge pier column comprises a vertical anti-seismic device and a horizontal anti-seismic device; the vertical anti-seismic device is arranged between a top bridge deck (1) and a pier lower column (2), corresponding circular grooves A (6) are formed in the bottom of the top bridge deck (1) and the top of the pier lower column (2), cylindrical steel stud pieces (3) are arranged in the circular grooves A (6), the cylindrical steel stud pieces (3) are matched with circular grooves A (6) with circular radiuses, cylindrical steel supporting pieces (4) are arranged between the upper cylindrical steel stud piece and the lower cylindrical steel stud piece (3), the cylindrical steel stud pieces (3) and the cylindrical steel supporting pieces (4) are of identical cylindrical structures, circular grooves B (7) are formed in the surfaces to be connected of the cylindrical steel stud pieces (3) and the two side surfaces of the cylindrical steel supporting pieces (4), and anti-seismic rubber (5) is arranged between the cylindrical steel stud pieces (3) and the cylindrical steel supporting pieces (4), the anti-seismic device is characterized in that the anti-seismic rubber (5) is arranged in a circular groove B (7), the cross section of the anti-seismic rubber (5) is matched with the cross section of the circular groove B (7), a lower column connecting piece (9) is arranged outside the vertical anti-seismic device, the lower column connecting piece (9) is of an annular barrel-shaped structure, the lower column connecting piece (9) is sleeved outside a cylindrical steel embedded column piece (3) and a cylindrical steel supporting piece (4) and is fixedly connected with a pier lower column (2), an upper column connecting piece (8) is sleeved outside the lower column connecting piece (9), the upper column connecting piece (8) is fixedly connected with the bottom surface of a top bridge floor (1), the upper column connecting piece (8) is of a barrel-shaped structure, the diameter of the upper column connecting piece is larger than that of the lower column connecting piece (9), an energy-dissipating spring (10) is arranged between the upper column connecting piece (8) and the lower column connecting piece (9), and an annular memory alloy outer, the circular memory alloy outer attachment plate (11) has the same circular radius as the top bridge deck (1) and the pier lower column (2).
2. An anti-seismic device on pier column according to claim 1, characterized in that: a circle of bottom flange (9-1) is arranged on the periphery of the bottom of the lower column connecting piece (9), and the bottom flange (9-1) of the lower column connecting piece (9) is fixedly connected with the top of the lower column (2) of the pier through a self-tapping self-drilling screw (12).
3. An anti-seismic device on pier column according to claim 1, characterized in that: the top of the upper column connecting piece (8) is provided with a circle consistent with the cylindrical steel embedded column piece (3), a top flange (8-1) is formed between the top of the upper column connecting piece and the edge of the upper column connecting piece (8), and the top flange (8-1) of the upper column connecting piece (8) is fixedly connected with the bottom of the top bridge deck (1) through a self-tapping self-drilling screw (12).
4. An anti-seismic device on pier column according to claim 1, characterized in that: the annular memory alloy outer flitch (11) is fixedly connected with the upper column connecting piece (8) and the lower column connecting piece (9) through self-tapping self-drilling screws (12).
5. An anti-seismic device on pier column according to claim 1, characterized in that: and 6 groups of energy dissipation springs (10) are vertically arranged between the upper column connecting piece (8) and the lower column connecting piece (9) and at the same position with the self-tapping self-drilling screw (12).
6. An anti-seismic device on pier column according to claim 1, characterized in that: and the lower column connecting piece (9) is sleeved outside the cylindrical section steel embedded column piece (3) and the cylindrical section steel supporting piece (4) and is tightly attached to the cylindrical section steel embedded column piece (3) and the cylindrical section steel supporting piece (4).
7. An anti-seismic device on pier column according to claim 1, characterized in that: the compression-resistant rubber (5), the energy dissipation spring (10) and the annular memory alloy outer attachment plate (11) are all made of elastic materials and can restore to the original shape after displacement.
8. An anti-seismic device on pier column according to claim 1, characterized in that: the height of the combination of the annular memory alloy outer attachment plate (11), the upper column connecting piece (8) and the lower column connecting piece (9) is consistent with that of the combination of the cylindrical steel embedded column piece (3), the cylindrical steel supporting piece (4) and the compression-resistant rubber (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921389766.8U CN211200041U (en) | 2019-08-26 | 2019-08-26 | Anti-seismic device on pier column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921389766.8U CN211200041U (en) | 2019-08-26 | 2019-08-26 | Anti-seismic device on pier column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211200041U true CN211200041U (en) | 2020-08-07 |
Family
ID=71861676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921389766.8U Expired - Fee Related CN211200041U (en) | 2019-08-26 | 2019-08-26 | Anti-seismic device on pier column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211200041U (en) |
-
2019
- 2019-08-26 CN CN201921389766.8U patent/CN211200041U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20210826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |