CN113235404A - Assembled steel structure shock insulation bent cap - Google Patents
Assembled steel structure shock insulation bent cap Download PDFInfo
- Publication number
- CN113235404A CN113235404A CN202110733645.6A CN202110733645A CN113235404A CN 113235404 A CN113235404 A CN 113235404A CN 202110733645 A CN202110733645 A CN 202110733645A CN 113235404 A CN113235404 A CN 113235404A
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- Prior art keywords
- basin
- slide
- plate
- connecting plate
- basins
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an assembled steel structure shock insulation bent cap which comprises a beam body, wherein the beam body consists of a top plate, four side plates, an upper connecting plate, a lower connecting plate, a bottom plate, an upper slide basin group, a lower slide basin group and a plurality of steel balls; the beneficial technical effects of the invention are as follows: the scheme can enable the bent cap to have energy dissipation capacity and improve the seismic performance of the bridge.
Description
Technical Field
The invention relates to a bridge anti-seismic technology, in particular to an assembled steel structure shock insulation cover beam.
Background
The bent cap is a common component on a bridge with a medium and small span, is limited by a conventional design idea, is a rigid component and hardly has energy consumption capacity in an earthquake.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides an assembled steel structure seismic isolation bent cap, which comprises a beam body, and is improved in that: the beam body consists of a top plate, four side plates, an upper connecting plate, a lower connecting plate, a bottom plate, an upper slide basin group, a lower slide basin group and a plurality of steel balls;
the top plate and the bottom plate are arranged in parallel, a space is reserved between the top plate and the bottom plate, and the circumferential profiles of the top plate and the bottom plate are rectangular; the side plates are vertically arranged, the upper ends of the side plates are fixedly connected with the side edges of the top plate, the four side plates respectively correspond to the four side edges of the top plate, the lower ends of the side plates are fixedly connected with the side edges of the bottom plate, and the four side plates respectively correspond to the four side edges of the bottom plate; the top plate, the side plates and the bottom plate are enclosed into a cuboid structure;
the upper connecting plate is arranged in the inner cavity of the cuboid structure, is parallel to the top plate, is spaced from the top plate, and is fixedly connected with the top plate through a plurality of vertical rib plates;
the lower connecting plate is arranged in the inner cavity of the cuboid structure, is parallel to the bottom plate, is spaced from the bottom plate, and is fixedly connected with the bottom plate through a plurality of vertical rib plates;
the upper slide basin group consists of a plurality of upper slide basins, each upper slide basin is of a basin-shaped structure, and an opening of each basin-shaped structure faces downwards; the upper slide basins are distributed in a matrix form, the adjacent upper slide basins are fixedly connected, and the top surfaces of the upper slide basins are fixedly connected with the lower side surface of the upper connecting plate; the lower side surface of the upper slide basin is an inwards concave spherical surface;
the lower slide basin group consists of a plurality of lower slide basins, each lower slide basin is of a basin-shaped structure, and the opening of each basin-shaped structure is upward; the lower slide basins are distributed in a matrix form, the adjacent lower slide basins are fixedly connected, and the bottom surfaces of the lower slide basins are fixedly connected with the upper side surface of the lower connecting plate; the upper side surface of the lower slide basin is an inwards concave spherical surface;
the plurality of lower slide basins correspond to the plurality of upper slide basins one by one; the ports of the lower slide basin and the upper slide basin which are opposite are oppositely stacked together, and a space enclosed by the lower slide basin and the upper slide basin which are opposite forms a slide cavity; a steel ball is arranged in each sliding cavity, the ports of the lower sliding basin and the upper sliding basin which are opposite in position are aligned, and the steel balls are tightly matched with the sliding cavities;
the upper connecting plate and the lower connecting plate are connected through a plurality of groups of steel wire rope dampers, and the plurality of groups of steel wire rope dampers are distributed along the circumferential direction; a plurality of shear bolts are arranged between the upper connecting plate and the lower connecting plate and are distributed along the circumferential direction.
The principle of the scheme is as follows: when an earthquake occurs, the lower slide basin group and the upper slide basin group are not fixed, so that the lower slide basin group and the upper slide basin group can slide relatively under the supporting action of the steel balls under the action of the earthquake, and the vibration energy is absorbed; in the vibration process, the steel wire rope damper and the shear bolt can play a limiting role, so that the lower sliding basin group and the upper sliding basin group only reciprocate relative motion in a certain range; after vibrations, because the inner wall of the upper and lower sides of the sliding cavity is the spherical surface, the steel ball can move to a low point under the action of gravity, so that the upper slide basin group can automatically reset, and because the inner wall of the upper and lower sides of the sliding cavity is the spherical surface, the steel ball can roll to a plurality of directions, so that the structure can respond to vibrations in different directions. In addition, compared with the existing cover beam with an integral structure, the cover beam is formed by assembling a plurality of components, and each component can be manufactured in advance and assembled on site, so that the construction period can be effectively shortened.
Preferably, be provided with a plurality of connection pads on the downside of bottom plate, the pier upper end is provided with the connecting seat that matches with the connection pad, connection pad and connecting seat flange joint. After the scheme is adopted, the bent cap and the pier can be connected in an assembling mode, and the bent cap can be replaced independently after being damaged in an earthquake, so that the post-earthquake repair is facilitated.
Preferably, a steel base plate for arranging a bridge support is arranged on the upper side surface of the top plate; the two ends of the upper side surface of the top plate are provided with a stop block base used for arranging a stop block. During specific implementation, a bridge bearing is arranged on the steel base plate, the bridge beam body on the upper portion is arranged on the bridge bearing, and the stop block is arranged on the stop block base.
The beneficial technical effects of the invention are as follows: the scheme can enable the bent cap to have energy dissipation capacity and improve the seismic performance of the bridge.
Drawings
FIG. 1, the structure of the present invention, exploded;
FIG. 2, a partial cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the upper slide basin group;
FIG. 4 is a schematic view of the structure of the lower slide basin group;
FIG. 5 is a state diagram of the use of the present invention;
the names corresponding to each mark in the figure are respectively: the steel bridge comprises a top plate 1, a steel base plate 1-1, a stop block base 1-2, a side plate 2, an upper connecting plate 3, a lower connecting plate 4, a bottom plate 5, an upper slide basin group 6, an upper slide basin 6-1, a lower slide basin group 7, a lower slide basin 7-1, a steel ball 8, a steel wire rope damper 9, a shear bolt 10, a connecting disc 11, a connecting seat 12, a vertical rib plate A, a stop block B and a bridge body C.
Detailed Description
The utility model provides an assembled steel construction shock insulation bent cap, includes the roof beam body, its improvement lies in: the beam body consists of a top plate 1, four side plates 2, an upper connecting plate 3, a lower connecting plate 4, a bottom plate 5, an upper slide basin group 6, a lower slide basin group 7 and a plurality of steel balls 8;
the top plate 1 and the bottom plate 5 are arranged in parallel, a space is reserved between the top plate 1 and the bottom plate 5, and the circumferential profiles of the top plate 1 and the bottom plate 5 are rectangular; the side plates 2 are vertically arranged, the upper ends of the side plates 2 are fixedly connected with the side edges of the top plate 1, the four side plates 2 respectively correspond to the four side edges of the top plate 1, the lower ends of the side plates 2 are fixedly connected with the side edges of the bottom plate 5, and the four side plates 2 respectively correspond to the four side edges of the bottom plate 5; the top plate 1, the side plates 2 and the bottom plate 5 enclose a cuboid structure;
the upper connecting plate 3 is arranged in an inner cavity of the cuboid structure, the upper connecting plate 3 is parallel to the top plate 1, a space is reserved between the upper connecting plate 3 and the top plate 1, and the upper connecting plate 3 and the top plate 1 are fixedly connected through a plurality of vertical rib plates (in order to improve the structural stability, in the specific implementation, the vertical rib plates can adopt a rectangular frame structure in fig. 1);
the lower connecting plate 4 is arranged in an inner cavity of the cuboid structure, the lower connecting plate 4 is parallel to the bottom plate 5, a space is reserved between the lower connecting plate 4 and the bottom plate 5, and the lower connecting plate 4 and the bottom plate 5 are fixedly connected through a plurality of vertical rib plates (in order to improve the structural stability, in the specific implementation, the vertical rib plates can adopt a rectangular frame structure in fig. 1);
the upper slide basin group 6 consists of a plurality of upper slide basins 6-1, each upper slide basin 6-1 is of a basin-shaped structure, and an opening of each basin-shaped structure faces downwards; the upper slide basins 6-1 are distributed in a matrix form, the adjacent upper slide basins 6-1 are fixedly connected, and the top surfaces of the upper slide basins 6-1 are fixedly connected with the lower side surface of the upper connecting plate 3; the lower side surface of the upper slide basin 6-1 is an inwards concave spherical surface; in specific implementation, the adjacent upper slide basins 6-1 can be connected with each other through rib plates and connected with the upper connecting plate 3 above;
the lower slide basin group 7 is composed of a plurality of lower slide basins 7-1, the lower slide basins 7-1 are basin-shaped structures, and the openings of the basin-shaped structures are upward; the lower slide basins 7-1 are distributed in a matrix form, the adjacent lower slide basins 7-1 are fixedly connected, and the bottom surfaces of the lower slide basins 7-1 are fixedly connected with the upper side surface of the lower connecting plate 4; the upper side surface of the lower slide basin 7-1 is an inwards concave spherical surface; in specific implementation, the adjacent lower slide basins 7-1 can be connected with each other through rib plates and connected with the lower connecting plate 4 below;
the plurality of lower slide basins 7-1 correspond to the plurality of upper slide basins 6-1 one by one; the ports of the lower slide basin 7-1 and the upper slide basin 6-1 which are opposite are oppositely stacked together, and a space enclosed by the lower slide basin 7-1 and the upper slide basin 6-1 which are opposite forms a slide cavity; a steel ball 8 is arranged in each sliding cavity, the ports of the lower sliding basin 7-1 and the upper sliding basin 6-1 which are opposite in position are aligned, and the steel ball 8 is tightly matched with the sliding cavity;
the upper connecting plate 3 and the lower connecting plate 4 are connected through a plurality of groups of steel wire rope dampers 9, and the plurality of groups of steel wire rope dampers 9 are distributed along the circumferential direction; a plurality of shear bolts 10 are arranged between the upper connecting plate 3 and the lower connecting plate 4, and the plurality of shear bolts 10 are distributed along the circumferential direction.
Further, a plurality of connecting discs 11 are arranged on the lower side surface of the bottom plate 5, connecting seats 12 matched with the connecting discs 11 are arranged at the upper ends of the piers, and the connecting discs 11 are in flange connection with the connecting seats 12.
Further, a steel base plate 1-1 for arranging a bridge support is arranged on the upper side face of the top plate 1; two ends of the upper side surface of the top plate 1 are provided with a stop block base 1-2 for arranging a stop block.
Claims (3)
1. The utility model provides an assembled steel construction shock insulation bent cap, includes the roof beam body, its characterized in that: the beam body consists of a top plate (1), four side plates (2), an upper connecting plate (3), a lower connecting plate (4), a bottom plate (5), an upper slide basin group (6), a lower slide basin group (7) and a plurality of steel balls (8);
the top plate (1) and the bottom plate (5) are arranged in parallel, a space is reserved between the top plate (1) and the bottom plate (5), and the circumferential profiles of the top plate (1) and the bottom plate (5) are rectangular; the side plates (2) are vertically arranged, the upper ends of the side plates (2) are fixedly connected with the side edges of the top plate (1), four side plates (2) respectively correspond to four side edges of the top plate (1), the lower ends of the side plates (2) are fixedly connected with the side edges of the bottom plate (5), and the four side plates (2) respectively correspond to four side edges of the bottom plate (5); the top plate (1), the side plates (2) and the bottom plate (5) are enclosed to form a cuboid structure;
the upper connecting plate (3) is arranged in an inner cavity of the cuboid structure, the upper connecting plate (3) is parallel to the top plate (1), a space is reserved between the upper connecting plate (3) and the top plate (1), and the upper connecting plate (3) is fixedly connected with the top plate (1) through a plurality of vertical rib plates;
the lower connecting plate (4) is arranged in an inner cavity of the cuboid structure, the lower connecting plate (4) is parallel to the bottom plate (5), a space is reserved between the lower connecting plate (4) and the bottom plate (5), and the lower connecting plate (4) is fixedly connected with the bottom plate (5) through a plurality of vertical rib plates;
the upper slide basin group (6) is composed of a plurality of upper slide basins (6-1), the upper slide basins (6-1) are basin-shaped structures, and the openings of the basin-shaped structures face downwards; the upper slide basins (6-1) are distributed in a matrix form, the adjacent upper slide basins (6-1) are fixedly connected, and the top surfaces of the upper slide basins (6-1) are fixedly connected with the lower side surface of the upper connecting plate (3); the lower side surface of the upper slide basin (6-1) is an inwards concave spherical surface;
the lower slide basin group (7) is composed of a plurality of lower slide basins (7-1), the lower slide basins (7-1) are basin-shaped structures, and the openings of the basin-shaped structures are upward; the lower slide basins (7-1) are distributed in a matrix form, the adjacent lower slide basins (7-1) are fixedly connected, and the bottom surfaces of the lower slide basins (7-1) are fixedly connected with the upper side surface of the lower connecting plate (4); the upper side surface of the lower slide basin (7-1) is an inwards concave spherical surface;
the plurality of lower slide basins (7-1) correspond to the plurality of upper slide basins (6-1) one by one; the ports of the lower sliding basin (7-1) and the upper sliding basin (6-1) which are opposite are oppositely stacked together, and a sliding cavity is formed in a space surrounded by the lower sliding basin (7-1) and the upper sliding basin (6-1) which are opposite; a steel ball (8) is arranged in each sliding cavity, the ports of the lower sliding basin (7-1) and the upper sliding basin (6-1) which are opposite in position are aligned, and the steel ball (8) is tightly matched with the sliding cavity;
the upper connecting plate (3) and the lower connecting plate (4) are connected through a plurality of groups of steel wire rope dampers (9), and the plurality of groups of steel wire rope dampers (9) are distributed along the circumferential direction; a plurality of shear bolts (10) are arranged between the upper connecting plate (3) and the lower connecting plate (4), and the shear bolts (10) are distributed along the circumferential direction.
2. The assembled steel structural seismic isolation cap beam of claim 1, wherein: the lower side face of the bottom plate (5) is provided with a plurality of connecting discs (11), the upper end of the pier is provided with a connecting seat (12) matched with the connecting discs (11), and the connecting discs (11) are in flange connection with the connecting seat (12).
3. An assembled steel structural seismic isolation cap beam according to claim 1 or 2, wherein: a steel base plate (1-1) for arranging a bridge support is arranged on the upper side surface of the top plate (1); two ends of the upper side surface of the top plate (1) are provided with a stop block base (1-2) for arranging a stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110733645.6A CN113235404B (en) | 2021-06-30 | 2021-06-30 | Assembled steel structure shock insulation bent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110733645.6A CN113235404B (en) | 2021-06-30 | 2021-06-30 | Assembled steel structure shock insulation bent cap |
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| CN113235404A true CN113235404A (en) | 2021-08-10 |
| CN113235404B CN113235404B (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110733645.6A Active CN113235404B (en) | 2021-06-30 | 2021-06-30 | Assembled steel structure shock insulation bent cap |
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| JP2004353727A (en) * | 2003-05-28 | 2004-12-16 | Tokkyokiki Corp | Trigger mechanism of base isolation device |
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| CN106012867A (en) * | 2016-06-24 | 2016-10-12 | 北京工业大学 | Bridge swivel construction and base isolation integrated device |
| CN106284060A (en) * | 2016-10-11 | 2017-01-04 | 重庆交通大学 | Bridge pier assembly for Bridge Seismic |
| CN206319244U (en) * | 2016-10-18 | 2017-07-11 | 武汉东九永环工程技术有限公司 | A kind of annular steel wire rope steel-ball composite damping support |
| CN206319245U (en) * | 2016-10-18 | 2017-07-11 | 武汉东九永环工程技术有限公司 | Sliding-type annular steel wire rope steel-ball composite damping support |
| CN107606046A (en) * | 2017-11-06 | 2018-01-19 | 杭州德泰人防设备有限公司 | A kind of ball type earthquake isolation device |
| CN210344130U (en) * | 2019-05-06 | 2020-04-17 | 四川省龙丹纳科技有限公司 | Four ball shock insulation platforms of pin-connected panel |
-
2021
- 2021-06-30 CN CN202110733645.6A patent/CN113235404B/en active Active
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| JP2001064913A (en) * | 1999-08-25 | 2001-03-13 | Nkk Corp | Rigid frame bridge pier |
| CN1396353A (en) * | 2001-07-06 | 2003-02-12 | 姜立平 | Earthquake damping and isolating mechanism |
| JP2003328588A (en) * | 2002-05-09 | 2003-11-19 | Tomomi Yoshitoshi | Double rolling support body with plurality of spherical bodies, base isolation device comprising excessive displacement suppressing mechanism and base isolation structure formed by combination with another hydraulic system or laminated rubber device |
| JP2004353727A (en) * | 2003-05-28 | 2004-12-16 | Tokkyokiki Corp | Trigger mechanism of base isolation device |
| CN2784667Y (en) * | 2005-04-05 | 2006-05-31 | 蔡崇兴 | Shock isolator |
| US20120066986A1 (en) * | 2009-02-16 | 2012-03-22 | Murat Dicleli | Multi-directional torsional hysteretic damper (mthd) |
| CN102927183A (en) * | 2012-10-15 | 2013-02-13 | 清华大学 | Low-frequency two-degree-of-freedom horizontal vibration isolation mechanism |
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| CN203320402U (en) * | 2013-05-16 | 2013-12-04 | 同济大学 | Inhaul cable type friction pendulum shock reduction and insulation support |
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| CN104074921A (en) * | 2014-07-09 | 2014-10-01 | 中国航空规划建设发展有限公司 | Ball type shock isolation device |
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| CN106284060A (en) * | 2016-10-11 | 2017-01-04 | 重庆交通大学 | Bridge pier assembly for Bridge Seismic |
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Also Published As
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| CN113235404B (en) | 2022-09-27 |
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