CN102660921B - Connected support applicable to mounting precast beam - Google Patents
Connected support applicable to mounting precast beam Download PDFInfo
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- CN102660921B CN102660921B CN201210177515.XA CN201210177515A CN102660921B CN 102660921 B CN102660921 B CN 102660921B CN 201210177515 A CN201210177515 A CN 201210177515A CN 102660921 B CN102660921 B CN 102660921B
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- precast beam
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Abstract
The invention discloses a connected support applicable to mounting a precast beam. The connected support comprises a connected steel plate, a plurality of upper positioning connectors fixedly connected with the precast beam are arranged on the upper side of the connected steel plate, the lower side of the connected steel plate is fixedly connected with a first support body through a first upper steel plate and is fixedly connected with a second support body through a second upper steel plate, the upper positioning connectors are positioned between the first support body and the second support body, a first lower steel plate is further fixedly arranged below the first support body, a second lower steel plate is further fixedly arranged below the second support body, and a plurality of lower positioning connectors fixedly connected with a bridge pier cap beam are arranged on the first lower steel plate and the second lower steel plate respectively. The connected steel plate on the connected support is integrally connected with the precast beam, the connected support has the advantages of better durability, firmness in connection, convenience in construction and the like, and close contact between the connected support and the upper precast beam and between the connected support and the lower bridge pier cap beam can be ensured by means of cast-in-situ cushion block construction.
Description
Technical field
The present invention relates to road and bridge building technology field, relate in particular to a kind of conjuncted bearing that is applicable to precast beam install.
Background technology
The bearing being installed at present at the bottom of precast beam adopts the patterns such as common laminated rubber bearing, pot rubber bearing, ball shaped steel bearing, lead core rubber support conventionally.
The carrying tonnage of common laminated rubber bearing is less, frictionally is associated with upper and lower part structure, leans on the shear strain of himself to adapt to the flexible of bridge, but can not resist larger horizontal force and Deformation Demands, due to reasons such as material agings, service life is shorter, durability is poor.
The bearing of the forms such as pot rubber bearing, ball shaped steel bearing, lead core rubber support, service life is long, durability is better, bearing tonnage is larger, and in urban elevated bridge and highway bridge, application is comparatively general.These bearings all carry positioning bolt, can stretch into the beam of the portion of being located thereon and be positioned at the bridge coping of its underpart, thereby can guarantee the reliable connection between the structure of upper and lower part.
But when superstructure is precast beam, the construction technique of these bearings can be very complicated.Common mounting method is: when the pier cap beam of cast-in-place bottom, at the reserved bearing positioning bolt hole in the top of bent cap, the while is pre-buried junction steel plate at the bottom of the beam of the precast beam on top; Then the positioning bolt of bearing bottom is inserted in the reserving hole on reserved pier cap beam, and the hole of positioning bolt is taked to grouting treatment, when beam lifting is set up, then by basin Plate Welding on steel plate and bearing at the bottom of the beam of top beam, make bearing be connected in aggregates with upper and lower part structure.
According to the requirement of existing highway bridge and culvert standard, when bearing is arranged on great slope, should between at the bottom of abutment surface and beam, bearing cushion block be set, make bearing maintenance level.No matter adopt the bearing of any type, while all existing the gradient larger, need bearing cushion block be set at the bottom of beam so that the problem of bearing maintenance level.In order to meet aforesaid technical requirements, when making precast beam, the cushion block according on the prefabricated bearing of the vertical and horizontal gradient of bridge, sticks on Liang Dishang conventionally.But this technical scheme, is still four-point supporting on the one hand, is difficult to adapt to the natural law of three faces, at the bottom of precast beam, is difficult for closely connected, discontinuity with bearing, the noise in the time of can increasing driving.On the other hand, along with the increase of cushion block kind, quantity, all bring great difficulty to construction cost, management, quality control.
Therefore, those skilled in the art be devoted to develop a kind of fit tight, stressed evenly, construction is applicable to the conjuncted bearing of precast beam install easily.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention be to provide a kind of fit tight, stressed evenly, construction is applicable to the conjuncted bearing of precast beam install easily.
For achieving the above object, the invention provides a kind of conjuncted bearing that is applicable to precast beam install, comprise a conjuncted steel plate; The upside of described conjuncted steel plate is provided with a plurality of upper positioning link being fixedly connected with precast beam; The downside of described conjuncted steel plate is fixedly connected with the first support body by the first upper steel plate, by the second upper steel plate, is fixedly connected with the second support body; Described upper positioning link is between described the first support body and described the second support body; The below of described the first support body is also fixedly installed the first lower steel plate, and the below of described the second support body is also fixedly installed the second lower steel plate; On described the first lower steel plate, described the second lower steel plate, be respectively arranged with a plurality of lower positioning link being fixedly connected with pier cap beam.
Preferably, described the first upper steel plate, described the second upper steel plate are fixedly connected with described conjuncted steel plate by connecting bolt respectively.
Preferably, described upper positioning link, described lower positioning link are connecting bolt.
The invention has the beneficial effects as follows:
Conjuncted steel plate and precast beam on conjuncted bearing of the present invention unify, there is better durability, and can guarantee the precast beam on conjuncted bearing and top, the closing contact between the pier cap beam of bottom has advantages of and is connected firmly by cast-in-place cushion block construction.Meanwhile, the present invention has also solved the problem of the precast lining execution control difficulty of bringing of a great variety, has the beneficial effect easily of constructing.
Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, to understand fully object of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of the present invention.
Fig. 2 is the local structure for amplifying schematic diagram in concrete application embodiment illustrated in fig. 1.
The specific embodiment
As shown in Figure 1 and Figure 2, a specific embodiment that is applicable to the conjuncted bearing of precast beam install of the present invention, mainly comprises a conjuncted steel plate 3, and the upside of conjuncted steel plate 3 is provided with a plurality of upper positioning link 31 being fixedly connected with precast beam 4.The downside of conjuncted steel plate 3 is fixedly connected with the first support body 1 by the first upper steel plate 11, by the second upper steel plate 21, is fixedly connected with the second support body 2.
Special character of the present invention is, upper positioning link 31 is between the first support body 1 and the second support body 2.Upper positioning link 31 is arranged between the first support body 1 and the second support body 2 (centre position that is also the precast beam 4 of later stage lifting) rather than is arranged on both sides, and the precast beam 4 that can avoid top is arranged on prestressing with bond steel bundle and the ground tackle of both sides.
The below that the below of the first support body 1 is also fixedly installed the first lower steel plate 12, the second support body 2 is also fixedly installed the second lower steel plate 22.On the first lower steel plate 12, the second lower steel plate 22, be respectively arranged with a plurality of lower positioning link 13,23 being fixedly connected with pier cap beam 5.
The first upper steel plate 11, the second upper steel plate 21 are fixedly connected with conjuncted steel plate 3 by connecting bolt 32 respectively.
The construction technology of conjuncted bearing of the present invention is below described:
In bearing factory, complete the making that is applicable to the conjuncted bearing of precast beam install of the present invention, and be transported to job site.
Synchronously, at the precasting yard of precast beam 4, complete the making of precast beam, the installing space 42 of the upper positioning link 31 on precast beam 4 on reserved conjuncted bearing, and reserved pouring hole 41.This precast beam 4 is transported to job site.
To thering is the pier cap beam 5 of constant slope, can level up by leveling pinner 51.
Step 6, after cast-in-situ concrete reaches design strength, removes temporary support; After 43 moulding of bearing cushion block, conjuncted bearing is fixedly connected with the precast beam 4 on top.
In construction technology of the present invention, upper positioning link 31 is cast in situs grouting material concrete with the connected mode of the precast beam 4 on top.Be specially: when the precast beam 4 on prefabricated top, at upper positioning link 31 correspondence positions with conjuncted bearing, offer the pouring hole 41 of 150 millimeters of diameters, this pouring hole 41 is along the vertical elongated layout of top precast beam 4, and reaming forms installing space 42 in one section of altitude range at the bottom of beam, so that cast-in-situ concrete can be contained the scope of a plurality of upper positioning links 31.
Utilize grouting material concrete casting building technology, conjuncted bearing that level shelves and the bearing cushion block 43 on conjuncted bearing are fitted tightly.Be specially: between the conjuncted steel plate 3 and top precast beam 4 of conjuncted bearing, on vertically, reserve the height (realizing by temporary support) of bearing cushion block 43.Around conjuncted steel plate 3, according to the construction size of bearing cushion block 43, template is set, thereby makes the position of the grouting material Concrete in Natural inflow bearing cushion block 43 of injection from the pouring hole 41 at precast beam 4 tops, and moulding.
In concrete enforcement, the conjuncted steel plate 3 that the top of conjuncted bearing arranges also can be used as the bed die of bearing cushion block 43, is convenient to the construction of bearing cushion block 43.
The bearing cushion block 43 of conjuncted bearing adopts grouting material concrete cast-in-situ, thereby guarantees conjuncted bearing integral level, has the beneficial effect of reliable in quality, easy construction.
On the conjuncted steel plate 3 at conjuncted bearing top, reserve the upper positioning link 31 in the installing space 42 that stretches into precast beam 4, by grouting material concrete, be connected with top precast beam 4, solid and reliable.
Conjuncted bearing can also carry dismountable anchor bolt (being connecting bolt 32), is convenient to maintenance and the replacing of conjuncted bearing.
Conjuncted steel plate and precast beam on conjuncted bearing of the present invention unify, there is better durability, and can guarantee the precast beam on conjuncted bearing and top, the closing contact between the pier cap beam of bottom has advantages of and is connected firmly by cast-in-place cushion block construction.Meanwhile, the present invention has also solved the problem of the precast lining execution control difficulty of bringing of a great variety, has the beneficial effect easily of constructing.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just can design according to the present invention make many modifications and variations without creative work.Therefore, all technician in the art, all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (3)
1. a conjuncted bearing that is applicable to precast beam install, is characterized in that: comprise a conjuncted steel plate; The upside of described conjuncted steel plate is provided with a plurality of upper positioning link being fixedly connected with precast beam; The downside of described conjuncted steel plate is fixedly connected with the first support body by the first upper steel plate, by the second upper steel plate, is fixedly connected with the second support body; Described upper positioning link is between described the first support body and described the second support body; The below of described the first support body is also fixedly installed the first lower steel plate, and the below of described the second support body is also fixedly installed the second lower steel plate; On described the first lower steel plate, described the second lower steel plate, be respectively arranged with a plurality of lower positioning link being fixedly connected with pier cap beam.
2. conjuncted bearing as claimed in claim 1, is characterized in that: described the first upper steel plate, described the second upper steel plate are fixedly connected with described conjuncted steel plate by connecting bolt respectively.
3. conjuncted bearing as claimed in claim 1, is characterized in that: described upper positioning link, described lower positioning link are connecting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210177515.XA CN102660921B (en) | 2012-06-01 | 2012-06-01 | Connected support applicable to mounting precast beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210177515.XA CN102660921B (en) | 2012-06-01 | 2012-06-01 | Connected support applicable to mounting precast beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102660921A CN102660921A (en) | 2012-09-12 |
| CN102660921B true CN102660921B (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210177515.XA Active CN102660921B (en) | 2012-06-01 | 2012-06-01 | Connected support applicable to mounting precast beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN102660921B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012546A (en) * | 1999-06-25 | 2001-01-16 | Kumagai Gumi Co Ltd | Sliding bearing |
| KR100402870B1 (en) * | 2001-04-12 | 2003-10-22 | 주식회사 화인 | earthquake insulating composite bearing |
| KR100589209B1 (en) * | 2004-08-17 | 2006-06-14 | 한국건설기술연구원 | Elastomeric Bearing |
| KR101002232B1 (en) * | 2010-06-25 | 2010-12-20 | 림버스산업 주식회사 | Installation method of construction of bridge bearing where shear resistance equipment for aseismic reinforcement was adherent and this |
| CN102162305B (en) * | 2011-05-16 | 2012-07-04 | 江苏兴邦建工集团有限公司 | Construction process for installing elastic slippage shock isolation support |
| CN202577138U (en) * | 2012-06-01 | 2012-12-05 | 上海市城市建设设计研究总院 | Integrated support suitable for mounting precast beams |
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2012
- 2012-06-01 CN CN201210177515.XA patent/CN102660921B/en active Active
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| CN102660921A (en) | 2012-09-12 |
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Address after: 200011 Tibet South Road, Shanghai, No. 1170, No. Patentee after: Shanghai urban construction design & Research Institute (Group) Co., Ltd. Address before: 200125 Dongfang Road, Shanghai, Pudong New Area, No. 3447 Patentee before: Shanghai Urban Construction Design & Research Institute |