CN213204476U - Self-adaptive support for small and medium span weak connection connecting bridge - Google Patents
Self-adaptive support for small and medium span weak connection connecting bridge Download PDFInfo
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- CN213204476U CN213204476U CN202021865971.XU CN202021865971U CN213204476U CN 213204476 U CN213204476 U CN 213204476U CN 202021865971 U CN202021865971 U CN 202021865971U CN 213204476 U CN213204476 U CN 213204476U
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Abstract
The utility model provides a self-adaptation support that is used for middle and small span weak link bridge belongs to construction design technical field, and it specifically includes bottom suspension bedplate, upper bracket board and support bracket, and the lower extreme of bottom suspension bedplate is connected with the support bracket, is provided with the upper bracket arc on the upper bracket board, and the upper bracket arc supports on the bottom suspension bedplate, and upper bracket arc and bottom suspension bedplate line contact. The utility model discloses a self-adaptation support is when taking place earthquake or uneven settlement, and the upper bracket arc can slide and rotate on bottom suspension bedplate, realizes the free activity between connecting bridge and the building subject, can not draw the connecting bridge because of the earthquake effect bad, or cause the connecting bridge to damage because too big uneven settlement between the building subject.
Description
Technical Field
The utility model belongs to the technical field of the construction design, a connecting bridge connection design technique is related to, specifically is a self-adaptation support that is used for the weak connecting bridge of medium and small span.
Background
At present, the style of high-rise buildings is various, and the most common one is that a plurality of main buildings are communicated through connecting bridges, so that people can walk back and forth conveniently. The connecting bridge with the weak connection mode is a frequently used connection mode for connecting main buildings at present due to clear stress and simple design. Need adopt the isolation bearing when middle and small span connecting bridge and building subject are connected weakly to prevent that the connecting bridge is destroyed when earthquake or uneven settlement, but current isolation bearing still has following problem:
1. the existing shock insulation support can only realize relative sliding in the horizontal direction and cannot rotate, so that relative movement between the connecting bridge and a building main body is limited, and the connecting bridge can be seriously damaged when large uneven settlement is generated between the building main bodies (particularly buildings positioned at two sides of a ground crack).
2. Under the action of a strong earthquake, when the slippage of the connecting bridge and the shock insulation support is too large, the shock insulation support is easily damaged by pulling, and the connecting bridge falls from the shock insulation support to cause potential safety hazards.
SUMMERY OF THE UTILITY MODEL
Relative slip on can only realizing the horizontal direction to above-mentioned current isolation bearing can not rotate, the limited problem of relative motion between connecting bridge and the building subject, the utility model provides a self-adaptation support that is used for the weak connecting bridge of medium and small span. The specific technical scheme is as follows:
the utility model provides a self-adaptation support that is used for middle and small span weak link bridge, includes bottom suspension bedplate, upper bracket board and support bracket, the lower extreme of bottom suspension bedplate is connected with the support bracket, be provided with the upper bracket arc on the upper bracket board, the upper bracket arc supports on the bottom suspension bedplate, just the upper bracket arc contacts with the bottom suspension bedplate line, can show the frictional force that reduces the contact surface.
Further inject, still be provided with the upper bracket flat board on the upper bracket board, the flat board of upper bracket welds with the upper bracket arc.
Further limiting, a reinforcing rib is arranged on the arc surface of the upper support arc plate, and the reinforcing rib is circumferentially arranged along the inner side of the upper support arc plate.
Further limiting, a plurality of longitudinal anchor bars are arranged on the upper support flat plate in parallel, and the distance between every two adjacent reinforcing ribs is 2 times of the distance between every two adjacent longitudinal anchor bars.
Further limiting, an upward-turned limiting turned edge is arranged on the side edge of the supporting bracket, a limiting groove is formed in the upper end face of the supporting bracket through the limiting turned edge, and the lower support plate is arranged in the limiting groove.
Further inject, the self-adaptation support still includes the bridge boundary beam, the bridge boundary beam passes through the upper bracket flat board and is connected with the upper bracket arc, spacing turn over the edge and carry on spacingly to the bridge boundary beam.
Further limiting, the height of the limiting turning edge is 100-200 mm.
Further limit, the surface that lower support plate and upper bracket arc contacted is the smooth surface.
Further limit, the upper bracket flat plate is provided with concrete tamping holes along the length direction.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model is used for the weak self-adaptation support of connecting the connecting bridge of medium and small span, the lower extreme and the support bracket of its bottom suspension bedplate are connected, be provided with the upper bracket arc on the upper bracket board, the upper bracket arc supports on the bottom suspension bedplate, upper bracket arc and bottom suspension bedplate line contact, it is connected with the building subject to support the bracket, the upper bracket board is connected with the connecting bridge boundary beam, the connecting bridge is connected on the connecting bridge boundary beam, when taking place earthquake or the uneven settlement of major structure, the upper bracket arc can slide and rotate on the bottom suspension bedplate, realize the free activity between connecting bridge and the building subject, the secondary stress that arouses the connecting bridge to rotate and produce because of the uneven settlement of the building subject has been eliminated, avoided the connecting bridge to be damaged.
2. Still be provided with the upper bracket flat board on the upper bracket board, the flat board and the welding of upper bracket arc of upper bracket, the flat board deformation that can restraint the upper bracket arc of upper bracket increases the stability when the upper bracket arc slides and rotates, and is convenient for be connected with the bridge connecting boundary beam.
3. The upper support arc plate is provided with a reinforcing rib, the deformation between the upper support flat plate and the upper support arc plate can be coordinated through the reinforcing rib, and the concentrated stress of line contact is converted into uniform stress of surface contact.
4. The side edge of the support bracket is provided with a limit turning edge which is turned upwards, the limit turning edge limits the bridge boundary beam, and the bridge boundary beam is prevented from slipping from the self-adaptive support when the strong earthquake action occurs, so that the bridge falls and unsafe events occur.
5. The face that bottom suspension bedplate and upper bracket arc contacted is the smooth surface, can regularly spray lubricating oil at bottom suspension bedplate or upper bracket arc to reduce the frictional force between upper bracket arc and the bottom suspension bedplate, alleviate because the damage that seismic action brought for the bridge.
Drawings
FIG. 1 is a schematic view of the construction and installation structure of the adaptive support of the present invention;
FIG. 2 is a schematic structural diagram of an adaptive mount;
FIG. 3 is a schematic structural view of an upper seat plate;
FIG. 4 is a schematic structural view of an upper bracket arc;
the construction method comprises the following steps of 1-a lower support plate, 2-a limiting turning edge, 3-an upper support plate, 31-an upper support arc plate, 311-a reinforcing rib, 32-an upper support flat plate, 33-a concrete pouring hole, 4-a bridge connecting side beam, 5-a construction main body, 6-a frame beam and 7-a supporting bracket.
Detailed Description
The technical solution of the present invention is further explained below with reference to the drawings and examples, but the present invention is not limited to the embodiments explained below.
The utility model discloses a self-adaptation support that is used for middle and small span weak link bridge, including bottom suspension bedplate 1, upper bracket board 3 and support bracket 7, bottom suspension bedplate 1's lower extreme is connected with support bracket 7, is provided with upper bracket arc 31 on the upper bracket board 3, and upper bracket arc 31 supports on bottom suspension bedplate 1, and upper bracket arc 31 and 1 line contact of bottom suspension bedplate. An upper support flat plate 32 is further arranged on the upper support plate 3, and the upper support flat plate 32 is welded with the upper support arc-shaped plate 31. A reinforcing rib 311 is provided on the arc surface of the upper holder arc plate 31, and the reinforcing rib 311 is arranged along the inner circumferential direction of the upper holder arc plate 31. A plurality of longitudinal anchor bars are arranged on the upper support flat plate 32 in parallel, and the distance between two adjacent reinforcing ribs 311 is 2 times of the distance between two adjacent longitudinal anchor bars. The side edge of the supporting bracket 7 is provided with a limiting turning edge 2 which is turned upwards, a limiting groove is formed on the upper end face of the supporting bracket 7 through the limiting turning edge 2, and the lower support plate 1 is arranged in the limiting groove.
The self-adaptive support further comprises a connecting bridge boundary beam 4, the connecting bridge boundary beam 4 is connected with an upper support arc plate 31 through an upper support flat plate 32, and the limiting turning edge 2 limits the connecting bridge boundary beam 4. The height of the limiting turning edge 2 is 100-200 mm.
The surfaces of the lower support plate 1 contacting with the upper support arc plate 31 are smooth surfaces, and the upper support flat plate 32 is provided with a concrete tamping hole 33 along the length direction.
Example 1
Referring to fig. 1 and 2, the present embodiment is an adaptive support for a small and medium span weak link bridge, which includes a lower support plate 1, an upper support plate 3 and a support bracket 7, wherein a lower end surface of the lower support plate 1 is disposed on an upper end surface of the support bracket 7, referring to fig. 2, the upper support plate 3 is provided with an upper support arc plate 31 and an upper support flat plate 32, the upper support arc plate 31 is a semicircle with a radius of 150mm, the upper support flat plate 32 is provided with a concrete tamping hole 33 along a length direction, the upper support arc plate 31 is supported on the lower support plate 1, an upper end surface of the lower support plate 1 is in line contact with the upper support arc plate 31, the upper support arc plate 31 is welded with the upper support flat plate 32, referring to fig. 4, reinforcing ribs 311 are disposed on an arc surface of the upper support arc plate 31, the reinforcing ribs 311 are uniformly arranged along a circumferential direction of the upper support arc plate 31, 4 longitudinal anchor ribs are disposed on the upper support flat, the distance between two adjacent longitudinal anchor bars is 0.2 m, and the distance between two adjacent reinforcing ribs 311 is 0.4 m. The side edge of the supporting bracket 7 is provided with a limiting turned edge 2 which is turned upwards, a limiting groove is formed on the upper end face of the supporting bracket 7 through the limiting turned edge 2, the lower support plate 1 is arranged in the limiting groove, the limiting turned edge 2 can limit the part arranged at the upper end of the supporting bracket 7, the contact surface of the lower support plate 1 and the upper support arc plate 31 is a smooth surface, and referring to fig. 3, the upper support flat plate 32 is provided with a concrete pouring hole 33 along the length direction.
The embodiment provides a self-adaptation support that is used for middle and small span weak link bridge, upper bracket arc 31 can slide and rotate on lower support board 1, the stationarity when lower support board 1 multiplicable upper bracket arc 31 slides and rotates, can regularly spray lubricating oil on the contact panel of upper bracket arc 31 or lower support board 1, in order to reduce the frictional force between upper bracket arc 31 and the lower support board 1, the reinforcing supports 7 and supports 7 relative free slip between the upper end parts of bracket, prevent when taking place the earthquake or producing strong vibrations, support 7 upper end parts of bracket and be damaged, can prevent to support 7 upper end parts of bracket from following the self-adaptation support landing through spacing turning over along 2.
Example 2
The embodiment of the invention relates to a self-adaptive support for a medium and small span weak connection connecting bridge, which comprises a lower support plate 1, an upper support plate 3 and a support bracket 7, wherein the lower end surface of the lower support plate 1 is arranged on the upper end surface of the support bracket 7, the upper support plate 3 is provided with an upper support arc plate 31 and an upper support flat plate 32, the distance from the top end of the arc surface of the upper support arc plate 31 to the lower end surface of the upper support flat plate 32 is 100 mm, the distance from the center of the upper support arc plate 31 to the side end surface of the upper support flat plate 32 is 120 mm, the upper support arc plate 31 is supported on the lower support plate 1, the upper end surface of the lower support plate 1 is in line contact with the upper support arc plate 31, the upper support arc plate 31 is welded with the upper support flat plate 32, a reinforcing rib 311 is arranged on the arc surface of the upper support arc plate 31, the reinforcing rib 311 is uniformly arranged along the circumferential direction of the upper support arc plate 31, 5 longitudinal, the distance between two adjacent longitudinal anchor bars is 0.25 m, and the distance between two adjacent reinforcing ribs 311 is 0.5 m. The side edge of supporting bracket 7 is provided with spacing turn-over edge 2 that upwards turns up, forms the spacing groove at the up end that supports bracket 7 through spacing turn-over edge 2, and lower support plate 1 arranges the spacing inslot in, and spacing turn-over edge 2 can be spacing to the part of placing supporting bracket 7 upper end in, and the face that lower support plate 1 and upper bracket arc 31 contact is the smooth surface, and upper bracket flat plate 32 is provided with concrete placement hole 33 along length direction.
The self-adaptive support for the middle-small span weak connection connecting bridge further comprises a connecting bridge boundary beam 4, the connecting bridge boundary beam 4 is connected with an upper support flat plate 32, a limiting turning edge 2 limits the connecting bridge boundary beam 4, and the connecting bridge boundary beam 4 is connected with a building main body 5 through a frame beam 6; the height of the limiting turning edge 2 is 150 mm.
According to the self-adaptive support for the middle-small span weak connection connecting bridge, the upper support arc plate 31 can slide and rotate on the lower support plate 1, the lower support plate 1 can increase the sliding and rotating stability of the upper support arc plate 31, lubricating oil can be regularly sprayed on the contact panel of the upper support arc plate 31 or the lower support plate 1, so that the friction force between the upper support arc plate 31 and the lower support plate 1 is reduced, the relative free sliding between the support bracket 7 and the connecting bridge side beam 4 is enhanced, secondary stress generated by the rotation of the connecting bridge due to uneven settlement of the building main body 5 is eliminated, and the connecting bridge is prevented from being damaged; the limiting turned edge 2 can prevent the bridge girder from slipping from the self-adaptive support when the sliding or rotating distance is large, so that the bridge falls and unsafe events occur.
Example 3
Different from embodiment 2, in the adaptive support for the medium-and-small-span weak-connection bridge according to this embodiment, 6 longitudinal anchor bars are arranged in parallel on the upper support flat plate 32, a distance between two adjacent longitudinal anchor bars is 0.3 m, a distance from the top end of the arc surface of the upper support arc plate 31 to the lower end surface of the upper support flat plate 32 is 150mm, a distance from the center of the upper support arc plate 31 to the side end surface of the upper support flat plate 32 is 180 mm, a distance between two adjacent reinforcing ribs 311 is 0.6 m, a height of the limiting turning edge 2 is 120 mm, and the rest are the same as those in embodiment 2.
Preferably, the height of the limiting turning edge 2 of the present invention may be 100 mm or 200 mm.
Claims (9)
1. The utility model provides a self-adaptation support that is used for middle and small span weak link bridge, its characterized in that, includes bottom suspension bedplate (1), upper bracket board (3) and support bracket (7), the lower extreme of bottom suspension bedplate (1) is connected with support bracket (7), be provided with upper bracket arc (31) on upper bracket board (3), upper bracket arc (31) support on bottom suspension bedplate (1), just upper bracket arc (31) and bottom suspension bedplate (1) line contact.
2. The self-adaptive support for the small and medium span weak connection bridge is characterized in that an upper support flat plate (32) is further arranged on the upper support plate (3), and the upper support flat plate (32) is welded with an upper support arc plate (31).
3. The adaptive support for the small and medium span weak connection bridge as claimed in claim 2, characterized in that the arc surface of the upper support arc plate (31) is provided with a reinforcing rib (311), and the reinforcing rib (311) is circumferentially arranged along the inner side of the upper support arc plate (31).
4. The self-adaptive support for the small and medium span weak connection bridge of claim 3, characterized in that a plurality of longitudinal anchor bars are arranged on the upper support flat plate (32) in parallel, and the distance between two adjacent reinforcing ribs (311) is 2 times of the distance between two adjacent longitudinal anchor bars.
5. The self-adaptive support for the small and medium span weak connection bridge according to claim 3, characterized in that the side edge of the supporting bracket (7) is provided with an upward-turned limiting turned edge (2), a limiting groove is formed on the upper end surface of the supporting bracket (7) through the limiting turned edge (2), and the lower support plate (1) is arranged in the limiting groove.
6. The adaptive support for the middle and small span weak connection bridge according to claim 5, characterized in that the adaptive support further comprises a bridge girder (4), the bridge girder (4) is connected with an upper support arc plate (31) through an upper support flat plate (32), and the limiting turned edge (2) limits the bridge girder (4).
7. The self-adaptive support for the small and medium span weak connection bridge of claim 6, characterized in that the height of the limiting turning edge (2) is 100-200 mm.
8. The self-adaptive support for the small and medium span weak connection bridge according to claim 3 is characterized in that the contact surfaces of the lower support plate (1) and the upper support arc plate (31) are smooth surfaces.
9. The adaptive support for the small and medium span weak connection bridge according to claim 8, characterized in that the upper support flat plate (32) is provided with concrete tamping holes (33) along the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021865971.XU CN213204476U (en) | 2020-08-31 | 2020-08-31 | Self-adaptive support for small and medium span weak connection connecting bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021865971.XU CN213204476U (en) | 2020-08-31 | 2020-08-31 | Self-adaptive support for small and medium span weak connection connecting bridge |
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| Publication Number | Publication Date |
|---|---|
| CN213204476U true CN213204476U (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021865971.XU Expired - Fee Related CN213204476U (en) | 2020-08-31 | 2020-08-31 | Self-adaptive support for small and medium span weak connection connecting bridge |
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| CN (1) | CN213204476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463504A (en) * | 2021-07-12 | 2021-10-01 | 中铁第四勘察设计院集团有限公司 | Tensile support of bridge |
-
2020
- 2020-08-31 CN CN202021865971.XU patent/CN213204476U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463504A (en) * | 2021-07-12 | 2021-10-01 | 中铁第四勘察设计院集团有限公司 | Tensile support of bridge |
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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: 20210514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |