CN102660921A - Connected support applicable to mounting precast beam - Google Patents
Connected support applicable to mounting precast beam Download PDFInfo
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- CN102660921A CN102660921A CN201210177515XA CN201210177515A CN102660921A CN 102660921 A CN102660921 A CN 102660921A CN 201210177515X A CN201210177515X A CN 201210177515XA CN 201210177515 A CN201210177515 A CN 201210177515A CN 102660921 A CN102660921 A CN 102660921A
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- steel plate
- bearing
- conjuncted
- precast beam
- support body
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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 that precast beam is installed.
Background technology
The bearing that is installed at present at the bottom of the precast beam adopts patterns such as common laminated rubber bearing, pot rubber bearing, ball shaped steel bearing, lead core rubber support usually.
The carrying tonnage of common laminated rubber bearing is less; Frictionally and upper and lower part structure interrelate, and lean on the shear strain of himself to adapt to the flexible of bridge, but can not resist bigger horizontal force and distortion demand; Owing to reasons such as material agings, service life is short, durability is relatively poor.
The bearing of forms such as pot rubber bearing, ball shaped steel bearing, lead core rubber support, service life is long, durability is better, the bearing tonnage is bigger, in overhead road of city bridge and highway bridge, uses comparatively general.These bearings all carry positioning bolt, can stretch into the beam that is positioned at its top and be positioned at the bridge bent cap of its underpart, thereby can guarantee the reliable connection between the structure of upper and lower part.
But when superstructure was precast beam, the construction technique of these bearings can be very complicated.Common mounting method is: when the bridge pier bent cap of cast-in-place bottom, reserve bearing positioning bolt hole at the top of bent cap, the while is pre-buried connection steel plate at the bottom of the beam of the precast beam on top; Positioning bolt with the bearing bottom inserts in the reserving hole on the bridge pier bent cap of reserving then; And the hole of positioning bolt taked grouting treatment; When treating that the beam lifting is set up, with basin steel plate welding on steel plate and the bearing at the bottom of the beam of top beam, make bearing be connected in aggregates again with the upper and lower part structure.
According to the requirement of existing highway bridge and culvert standard, when bearing is arranged on the great slope, should between at the bottom of abutment surface and the beam, the bearing cushion block be set, make bearing maintenance level.No matter adopt the bearing of any type, need the bearing cushion block to be set at the bottom of beam when all existing the gradient big so that the problem of bearing maintenance level.In order to satisfy 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 usually.But this technical scheme still is 4 supports on the one hand, is difficult to adapt to the natural law of three faces, is difficult for closely connected, discontinuity with bearing at the bottom of the precast beam, 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 for 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 that precast beam is installed easily.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provide a kind of fit tight, stressed evenly, construction is applicable to the conjuncted bearing that precast beam is installed easily.
For realizing above-mentioned purpose, the invention provides a kind of conjuncted bearing that is applicable to that precast beam is installed, comprise a conjuncted steel plate; The upside of said conjuncted steel plate is provided with a plurality of positioning links of going up that are fixedly connected with precast beam; The downside of said conjuncted steel plate is fixedly connected with first support body through first upper steel plate, is fixedly connected with second support body through second upper steel plate; The said positioning link of going up is between said first support body and said second support body; The below of said first support body also is set with first lower steel plate, and the below of said second support body also is set with second lower steel plate; Be respectively arranged with a plurality of positioning links down that are fixedly connected with the bridge pier bent cap on said first lower steel plate, said second lower steel plate.
Preferably, said first upper steel plate, said second upper steel plate are fixedly connected with said conjuncted steel plate through connecting bolt respectively.
Preferably, said upward positioning link, said positioning link down are connecting bolt.
The invention has the beneficial effects as follows:
Conjuncted steel plate and precast beam on the conjuncted bearing of the present invention unify; Has better durability; And can guarantee closely connected contact the between the bridge pier bent cap of precast beam, bottom on conjuncted bearing and top through the construction of cast-in-place cushion block, have the advantage that is connected firmly.Simultaneously, the present invention has also solved the problem of the prefabricated cushion block execution control difficulty of bringing of a great variety, has the beneficial effect easily of constructing.
Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.
Description of drawings
Fig. 1 is the structural representation of a specific embodiment of the present invention.
Fig. 2 is the local structure for amplifying sketch map in concrete application the embodiment illustrated in fig. 1.
The specific embodiment
Like Fig. 1, shown in Figure 2, a specific embodiment that is applicable to the conjuncted bearing that precast beam is installed 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 positioning links 31 of going up that are fixedly connected with precast beam 4.The downside of conjuncted steel plate 3 is fixedly connected with first support body 1 through first upper steel plate 11, is fixedly connected with second support body 2 through second upper steel plate 21.
Special character of the present invention is that last positioning link 31 is between first support body 1 and second support body 2.Last positioning link 31 is arranged between first support body 1 and second support body 2 (centre position that also is 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 the prestressing with bond steel bundle and the ground tackle of both sides.
The below that the below of first support body 1 also is set with first lower steel plate, 12, the second support body 2 also is set with second lower steel plate 22.Be respectively arranged with a plurality of positioning links 13,23 down that are fixedly connected with bridge pier bent cap 5 on first lower steel plate 12, second lower steel plate 22.
First upper steel plate 11, second upper steel plate 21 are fixedly connected with conjuncted steel plate 3 through connecting bolt 32 respectively.
The construction technology of conjuncted bearing of the present invention below is described:
Accomplish the making that is applicable to the conjuncted bearing that precast beam is installed of the present invention in bearing factory, and be transported to the job site.
Synchronously, accomplish the making of precast beam, reserve the installing space 42 of the last positioning link 31 on the conjuncted bearing on the precast beam 4 at the precasting yard of precast beam 4, and reservation pouring hole 41.This precast beam 4 is transported to the job site.
To having the bridge pier bent cap 5 of constant slope, can level up through leveling pinner 51.
Step 4, precast beam 4 is set up in lifting, is shelved on precast beam 4 on the temporary support earlier when setting up; A plurality of positioning links 31 of going up are placed in the installing space 42 of precast beam 4.
Step 5 is built cast-in-situ concrete from the pouring hole 41 at precast beam 4 tops, fills up installing space 42, utilizes grouting material concrete to form bearing cushion block 43.
Step 6, treat that cast-in-situ concrete reaches design strength after, remove temporary support; After 43 moulding of bearing cushion block, conjuncted bearing is fixedly connected with the precast beam 4 on top.
In the construction technology of the present invention, last positioning link 31 is a 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; With conjuncted bearing on positioning link 31 correspondence positions; Offer the pouring hole 41 of 150 millimeters of diameters; The vertical elongated layout of this pouring hole 41 precast beam 4 along top, and reaming forms installing space 42 in one section altitude range at the bottom of beam, so that cast-in-situ concrete can be contained a plurality of scopes that go up positioning links 31.
Utilize grouting material concrete casting building technology, conjuncted bearing that level shelves and the bearing cushion block 43 on the 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) of bearing cushion block 43 through temporary support.Around conjuncted steel plate 3, according to the construction size of bearing cushion block 43 template is set, thereby makes the grouting material concrete that from the pouring hole 41 at precast beam 4 tops, injects flow into the position of bearing cushion block 43 and moulding naturally.
In practical implementation, the conjuncted steel plate 3 that the top of conjuncted bearing is provided with 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.
Reserve the last positioning link 31 in the installing space 42 that stretches into precast beam 4 on the conjuncted steel plate 3 at conjuncted bearing top, be connected with top precast beam 4 through grouting material concrete, solid and reliable.
Conjuncted bearing can also carry dismountable anchor bolt (being connecting bolt 32), is convenient to the maintenance and the replacing of conjuncted bearing.
Conjuncted steel plate and precast beam on the conjuncted bearing of the present invention unify; Has better durability; And can guarantee closely connected contact the between the bridge pier bent cap of precast beam, bottom on conjuncted bearing and top through the construction of cast-in-place cushion block, have the advantage that is connected firmly.Simultaneously, the present invention has also solved the problem of the prefabricated cushion block 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 need not creative work and just can design according to the present invention make many modifications and variation.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 through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (3)
1. a conjuncted bearing that is applicable to that precast beam is installed is characterized in that: comprise a conjuncted steel plate; The upside of said conjuncted steel plate is provided with a plurality of positioning links of going up that are fixedly connected with precast beam; The downside of said conjuncted steel plate is fixedly connected with first support body through first upper steel plate, is fixedly connected with second support body through second upper steel plate; The said positioning link of going up is between said first support body and said second support body; The below of said first support body also is set with first lower steel plate, and the below of said second support body also is set with second lower steel plate; Be respectively arranged with a plurality of positioning links down that are fixedly connected with the bridge pier bent cap on said first lower steel plate, said second lower steel plate.
2. conjuncted bearing as claimed in claim 1 is characterized in that: said first upper steel plate, said second upper steel plate are fixedly connected with said conjuncted steel plate through connecting bolt respectively.
3. conjuncted bearing as claimed in claim 1 is characterized in that: said upward positioning link, said positioning link down 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 true CN102660921A (en) | 2012-09-12 |
| CN102660921B CN102660921B (en) | 2014-03-05 |
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| 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 |
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| CN (1) | CN102660921B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012546A (en) * | 1999-06-25 | 2001-01-16 | Kumagai Gumi Co Ltd | Sliding bearing |
| KR20020079049A (en) * | 2001-04-12 | 2002-10-19 | 주식회사 화인 | earthquake insulating composite bearing |
| KR20060016195A (en) * | 2004-08-17 | 2006-02-22 | 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 |
| CN102162305A (en) * | 2011-05-16 | 2011-08-24 | 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 |
-
2012
- 2012-06-01 CN CN201210177515.XA patent/CN102660921B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012546A (en) * | 1999-06-25 | 2001-01-16 | Kumagai Gumi Co Ltd | Sliding bearing |
| KR20020079049A (en) * | 2001-04-12 | 2002-10-19 | 주식회사 화인 | earthquake insulating composite bearing |
| KR20060016195A (en) * | 2004-08-17 | 2006-02-22 | 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 |
| CN102162305A (en) * | 2011-05-16 | 2011-08-24 | 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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| Publication number | Publication date |
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| CN102660921B (en) | 2014-03-05 |
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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 |
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