CN102286926A - Mounting process of cast-in-place bridge pot rubber bearing - Google Patents
Mounting process of cast-in-place bridge pot rubber bearing Download PDFInfo
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- CN102286926A CN102286926A CN2011102458010A CN201110245801A CN102286926A CN 102286926 A CN102286926 A CN 102286926A CN 2011102458010 A CN2011102458010 A CN 2011102458010A CN 201110245801 A CN201110245801 A CN 201110245801A CN 102286926 A CN102286926 A CN 102286926A
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Abstract
The invention discloses a mounting process of a cast-in-place bridge pot rubber bearing, and the mounting process comprises the following steps: 1) when in construction, pouring cushion stone concrete according to the bearing back-calculation elevation; 2) after the cushion stone concrete reaches the designed strength, polishing the cushion stone and drawing the center line and side line of the bearing; 3) preparing a plurality of reinforced support piles with proper length, drilling holes on the cushion stone of the bearing, and implanting the reinforced support piles into the holes to serve as support points; 4) adjusting the elevation of the reinforced support piles; 5) cleaning the cushion stone and reserving bolt holes; 6) mounting a wood border for the outer side line of the bearing; 7) mounting the lower bolt of the bearing in place, and performing trial mounting of the bearing; 8) mixing the epoxy mortar and pouring the mixed epoxy mortar into the reserved bolt holes and uniformly spreading on the cushion stone, and mounting the bearing in time; 9) dismantling the wood border of the outer side line of the bearing, and mounting the upper bolt of the bearing; and 10) maintaining. According to the mounting process disclosed by the invention, twice placing is combined into once placing, the mounting precision is improved, the mounting speed is increased, and the placing quality is obviously improved.
Description
Technical field
The invention belongs to the bridge engineering technical field of construction, be specially a kind of cast-in-situ bridge pot rubber bearing mounting process.
Background technology
Bridge pad is an important component part of beam bridge girder construction, and the beam type bridge normally is made up of bridge pier, bent cap and platform cap, and bridge pad then is at the load transfer device of bridge span structure (bent cap) with the supporting place setting of bridge pier or platform cap.Development along with highway construction, the also more and more large-scale change of bridge beam body and bridge pad, supporting capacity and deformability to bridge pad also constantly proposed new requirement simultaneously, technical requirements to its construction and installation is also more and more higher, but because bridge pad is bigger, pier stud top operational space is limited, and bridge pad often is difficult to reach engine request when the construction leveling.The for example present cast-in-situ bridge pot rubber bearing installation technology method that adopts, it is to adopt drift to come the bed hedgehopping leveling, and then respectively placing anchor bolt and pinner surface layer at twice, the mounting method of this neoprene bearing makes the placing difficulty increase, the cycle of construction is longer, and the bearing installation accuracy be difficult to control, can't guarantee the plumpness of being in the milk.
Summary of the invention
At above-mentioned deficiency of the prior art, the objective of the invention is to solve the present neoprene bearing problem that difficulty is big when grouting, plumpness is not enough, and provide a kind of installation accuracy higher cast-in-situ bridge pot rubber bearing mounting process.
Technical scheme of the present invention is as follows: cast-in-situ bridge pot rubber bearing mounting process, it is characterized in that, and comprise the steps:
(1) when bridge pier, bent cap or the construction of platform cap, the bearing anchor bolt parameter that provides according to bearing producer is provided with prepared screw-bolt hole, treats that bridge pier, bent cap or platform cap concrete reach certain intensity afterwards according to bearing inverse elevation cast pinner concrete; When calculating the bearing elevation, be to put as bench mark always, utilize level gauge or total powerstation to measure the discrepancy in elevation between unknown point and the bench mark, calculate the elevation of unknown point with one, the computational methods of described level gauge and total powerstation and elevation are prior art, do not describe in detail at this;
When (2) treating that the pinner concrete reaches design strength, polishing pinner surface makes pinner planeness and four jiaos of discrepancy in elevation reach the design specifications requirement, draw on pinner bearing center line and bearing sideline;
(3) prepare the some reinforced bar support stakes that are of convenient length according to the size of base-plate, on the pinner of bearing, be drilled with eyelet, and the strong point of eyelet as bearing implanted in ready reinforced bar support stake;
(4) grasp the end face absolute altitude of flat reinforced bar support stake with level gauge, utilize wheel sander to adjust reinforced bar support pile beacon height repeatedly, up to satisfying code requirement;
(5) inner foreign material of cleaning pinner and prepared screw-bolt hole and dust, and keep pinner and prepared screw-bolt hole drying;
(6) according to the setting-out erection support outer edge wooden frame on the pinner;
(7) with bolt installation in position under the bearing, the examination erection support checks whether identical prepared screw-bolt hole position and outer edge batten are installed;
(8) prepare modulation epoxy mortar material and electronic scale, according to proportioning modulation epoxy mortar, be poured in the prepared screw-bolt hole after the modulation evenly at once and uniformly dispersing on pinner, in time bearing is in place, utilize bearing deadweight to make in the prepared screw-bolt hole and the epoxy mortar on the pinner full to whole bearing outer edge wooden frame;
(9) treat to remove bearing outer edge wooden frame after the epoxy mortar sclerosis, and check whether the rest base epoxy mortar is closely knit, then bolt above the erection support;
(10) health: treat that the girder pre-stressed stretch-draw of Cast-in-place concrete cuts off bearing constraint lock after finishing immediately, remove the bearing deformation constrain.
A kind of employing is the pot rubber bearing of mounting process as mentioned above, comprises a seat body, it is characterized in that described seat body is made of upper plate and lower shoe, and upper plate and lower shoe connect as one by terminal pad; Be provided with some contour reinforced bar support stakes in the bottom surface of described lower shoe; Carrier setting bolt all is installed on upper plate and lower shoe.
The present invention has been combined into a placing with twice placing, i.e. anchor bolt and pinner surface layer placing simultaneously, and after the leveling of reinforced bar support stake replacement drift, the precision control that bearing is installed improves, and installation rate is faster, and the placing quality has obvious lifting.
Further, described reinforced bar support stake is 4 ~ 12.
Further, respectively be provided with four carrier setting bolts on described upper plate and the lower shoe, and described carrier setting bolt lays respectively on four angles of place base plate.
Further again, described reinforced bar support stake is evenly distributed on the lower shoe.
With respect to prior art, the present invention has following beneficial effect:
Pot rubber bearing mounting process of the present invention is owing to preset the bearing bar stake at rest base, make that bearing when mounted can fast leveling, thereby quickening installation rate, and can also increase the grouting space between bearing bottom surface and the following pinner, make the grouting difficulty reduce, utilize bearing deadweight to make in the prepared screw-bolt hole and the epoxy mortar on the pinner full to whole bearing outer edge wooden frame, guaranteed the full quality of perfusion; Simultaneously owing on neoprene bearing, be provided with all-in-one-piece bolt, so just realized twice traditional placing is combined into a placing, the placing that is about to anchor bolt and pinner surface layer is once finished, and helps improving the installation accuracy of bearing, has ensured the quality that bearing is installed.
Description of drawings
Fig. 1 is the structural representation after the cast-in-situ bridge pot rubber bearing of employing mounting process of the present invention is installed;
The vertical view of Fig. 2 after for the Cast-in-place concrete beam that removes top among Fig. 1.
Among the figure, a 1-seat body, 11-upper plate, 12-lower shoe, 13-terminal pad, the stake of 2-reinforced bar support, 3-carrier setting bolt, 4-bearing outer edge batten, pinner under 5-bent cap bearing, 6-prepared screw-bolt hole, 7-bent cap, 8-Cast-in-place concrete beam.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
A kind of cast-in-situ bridge pot rubber bearing mounting process, its step is as follows:
1) when bridge pier, bent cap or the construction of platform cap, according to the bearing anchor bolt parameter prepared screw-bolt hole that bearing producer provides, treat that bridge pier, bent cap or platform cap concrete reach after certain intensity according to bearing inverse elevation (when generally reserving bearing and installing in the thickness 5mm of epoxy mortar) cast pinner concrete.
2) to check whether the model of bearing meets design requirement before the installation; Whether the quality certification of bearing, examining report be complete effectively.
When 3) treating that the pinner concrete reaches design strength, polishing pinner surface makes pinner planeness and four jiaos of discrepancy in elevation reach the design specifications requirement, ejects bearing center line and bearing sideline with the line of ink marker on bearing pad stone.
4) prepare the long reinforced bar support stake of 4 ~ 12 4cm according to the size of base-plate, use electric hammer jewel hole on bearing pad stone, and the strong point of eyelet as bearing implanted in the reinforced bar support stake of preparing.
5) level gauge is grasped the end face absolute altitude of flat reinforced bar support stake, utilizes wheel sander will adjust reinforced bar support pile beacon height repeatedly, up to satisfying code requirement.
6) inner foreign material of cleaning pinner and prepared screw-bolt hole and dust, and keep pinner and prepared screw-bolt hole drying.
7) according to line of ink marker erection support outer edge batten frame, bearing outer edge batten is as the installing and locating guide effect, and as epoxy mortar packed layer template, and epoxy mortar is excessive when preventing erection support causes leakiness below the bearing.
8) with bolt installation in position under the bearing, the examination erection support checks whether identical prepared screw-bolt hole position and outer edge batten are installed.
9) prepare modulation epoxy mortar material and electronic scale, according to proportioning modulation epoxy mortar, be poured in the prepared screw-bolt hole after the modulation evenly at once and uniformly dispersing on pinner, in time bearing is in place, utilize bearing deadweight to make in the prepared screw-bolt hole and the epoxy mortar on the pinner full to whole bearing outer edge wooden frame.Because the epoxy mortar rate of hardening is very fast, it is auxiliary to prepare crane when bigger bearing is installed, and bearing also is not in place and causes doing over again in case stop ring oxygen mortar has hardened.
10) treat to remove the bearing wooden frame after the epoxy mortar sclerosis, and check whether the rest base epoxy mortar is closely knit, then bolt above the erection support.
11) health.Treat that the girder pre-stressed stretch-draw of Cast-in-place concrete cuts off bearing constraint lock after finishing immediately, remove the bearing deformation constrain.
In the mounting process of the present invention, bearing anchor bolt parameter, build the required intensity level of bridge pier in the process, bent cap or platform cap concrete, the pinner concrete gets design strength, pinner planeness, reinforced bar support pile beacon height, the size of bearing outer edge batten frame and the proportioning of epoxy mortar etc., all by concrete technological parameter decision, to the bridge bent cap of different model, need the pot rubber bearing of respective model; More than can be used as prior art, do not give unnecessary details at this.
As depicted in figs. 1 and 2, being a kind of pot rubber bearing that adopts mounting process of the present invention, is to be used for when bent cap is constructed, and connects the bent cap of bottom and the Cast-in-place concrete beam on top, and plays a supporting role.It comprises a seat body 1, described seat body 1 is made of upper plate 11 and lower shoe 12, upper plate 11 and lower shoe 12 are rectangular configuration, connect as one by discoid terminal pad 13 between upper plate 11 and the lower shoe 12, be provided with some contour reinforced bar support stakes 2 in the bottom surface of described lower shoe 12, for enough spaces can steadily and be arranged at the bottom that makes bearing, be that reinforced bar support stake 2 is evenly distributed on the lower shoe 12 when mounted, and the quantity of reinforced bar support stake 2 is that 4,6,8 or 12 are for good; Carrier setting bolt 3 also all is installed on upper plate 11 and lower shoe 12, wherein respectively is provided with four carrier setting bolts 3 on upper plate 11 and the lower shoe 12, and described carrier setting bolt lays respectively on four angles of place base plate.
Speed of application when pot rubber bearing of the present invention can obviously improve the Cast-in-place concrete beam, and placing better quality also help the raising installation accuracy.
Claims (5)
1. cast-in-situ bridge pot rubber bearing mounting process is characterized in that, comprises the steps:
(1) when bridge pier, bent cap or the construction of platform cap, the bearing anchor bolt parameter that provides according to bearing producer is provided with prepared screw-bolt hole, treats that bridge pier, bent cap or platform cap concrete reach certain intensity afterwards according to bearing inverse elevation cast pinner concrete;
When (2) treating that the pinner concrete reaches design strength, polishing pinner surface makes pinner planeness and four jiaos of discrepancy in elevation reach the design specifications requirement, draw on pinner bearing center line and bearing sideline;
(3) prepare the some reinforced bar support stakes that are of convenient length according to the size of base-plate, on the pinner of bearing, be drilled with eyelet, and the strong point of eyelet as bearing implanted in ready reinforced bar support stake;
(4) grasp the end face absolute altitude of flat reinforced bar support stake with level gauge, utilize wheel sander to adjust reinforced bar support pile beacon height repeatedly, up to satisfying code requirement;
(5) inner foreign material of cleaning pinner and prepared screw-bolt hole and dust, and keep pinner and prepared screw-bolt hole drying;
(6) according to the setting-out erection support outer edge wooden frame on the pinner;
(7) with bolt installation in position under the bearing, the examination erection support checks whether identical prepared screw-bolt hole position and outer edge batten are installed;
(8) prepare modulation epoxy mortar material and electronic scale, according to proportioning modulation epoxy mortar, be poured in the prepared screw-bolt hole after the modulation evenly at once and uniformly dispersing on pinner, in time bearing is in place, utilize bearing deadweight to make in the prepared screw-bolt hole and the epoxy mortar on the pinner full to whole bearing outer edge wooden frame;
(9) treat to remove bearing outer edge wooden frame after the epoxy mortar sclerosis, and check whether the rest base epoxy mortar is closely knit, then bolt above the erection support;
(10) health: treat that the girder pre-stressed stretch-draw of Cast-in-place concrete cuts off bearing constraint lock after finishing immediately, remove the bearing deformation constrain.
2. pot rubber bearing that adopts the described mounting process of claim 1, comprise a seat body (1), it is characterized in that described seat body (1) is made of upper plate (11) and lower shoe (12), upper plate (11) and lower shoe (12) connect as one by terminal pad (13); Be provided with some contour reinforced bar support stakes (2) in the bottom surface of described lower shoe (12); On upper plate (11) and lower shoe (12), carrier setting bolt (3) is installed all.
3. pot rubber bearing according to claim 2 is characterized in that, described reinforced bar support stake (2) is 4 ~ 12.
4. pot rubber bearing according to claim 2 is characterized in that, respectively is provided with four carrier setting bolts (3) on described upper plate (11) and the lower shoe (12), and described carrier setting bolt lays respectively on four angles of place base plate.
5. according to claim 2 or 3 described pot rubber bearings, it is characterized in that described reinforced bar support stake (2) is evenly distributed on the lower shoe (12).
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| CN2011102458010A CN102286926A (en) | 2011-08-25 | 2011-08-25 | Mounting process of cast-in-place bridge pot rubber bearing |
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| CN2011102458010A CN102286926A (en) | 2011-08-25 | 2011-08-25 | Mounting process of cast-in-place bridge pot rubber bearing |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817324A (en) * | 2012-09-06 | 2012-12-12 | 浙江金筑交通建设有限公司 | Construction method for quickly installing pot rubber bearing by using epoxy resin mortar |
| CN103161123A (en) * | 2013-03-11 | 2013-06-19 | 浙江海天建设集团有限公司 | Installation structures of piled layer rubber support and flat plate sliding support |
| CN104594203A (en) * | 2014-12-31 | 2015-05-06 | 北京市市政专业设计院股份公司 | Construction technology of upper pinner below beam body |
| CN104712061A (en) * | 2015-01-22 | 2015-06-17 | 中交第二航务工程局有限公司 | Installing method for large-tonnage spherical bearing |
| CN108560409A (en) * | 2018-05-31 | 2018-09-21 | 中国水利水电第四工程局有限公司 | A kind of high-speed rail bridge bearing mortar bed pours structure and irrigation method |
| CN108677687A (en) * | 2018-07-02 | 2018-10-19 | 中铁工程设计咨询集团有限公司 | Bent cap, bridge pier, bridge and the bridge assembling constructing method of prefabrication and assembly construction bridge pier |
| CN109610344A (en) * | 2018-12-31 | 2019-04-12 | 中铁六局集团太原铁路建设有限公司 | Bridge rotation body support construction method of installation |
| CN110409625A (en) * | 2019-07-22 | 2019-11-05 | 武汉一冶建筑安装工程有限责任公司 | Pier stud support installation method |
| CN110952456A (en) * | 2019-12-06 | 2020-04-03 | 中铁十八局集团建筑安装工程有限公司 | Pile type bridge construction process |
| CN111549657A (en) * | 2020-05-22 | 2020-08-18 | 贵州路桥集团有限公司 | Rapid installation method of bridge basin-type rubber support |
| CN114960460A (en) * | 2022-07-13 | 2022-08-30 | 中国二十二冶集团有限公司 | Method for quickly and accurately installing plate type rubber support |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817324A (en) * | 2012-09-06 | 2012-12-12 | 浙江金筑交通建设有限公司 | Construction method for quickly installing pot rubber bearing by using epoxy resin mortar |
| CN103161123A (en) * | 2013-03-11 | 2013-06-19 | 浙江海天建设集团有限公司 | Installation structures of piled layer rubber support and flat plate sliding support |
| CN104594203A (en) * | 2014-12-31 | 2015-05-06 | 北京市市政专业设计院股份公司 | Construction technology of upper pinner below beam body |
| CN104712061A (en) * | 2015-01-22 | 2015-06-17 | 中交第二航务工程局有限公司 | Installing method for large-tonnage spherical bearing |
| CN108560409A (en) * | 2018-05-31 | 2018-09-21 | 中国水利水电第四工程局有限公司 | A kind of high-speed rail bridge bearing mortar bed pours structure and irrigation method |
| CN108677687A (en) * | 2018-07-02 | 2018-10-19 | 中铁工程设计咨询集团有限公司 | Bent cap, bridge pier, bridge and the bridge assembling constructing method of prefabrication and assembly construction bridge pier |
| CN109610344A (en) * | 2018-12-31 | 2019-04-12 | 中铁六局集团太原铁路建设有限公司 | Bridge rotation body support construction method of installation |
| CN110409625A (en) * | 2019-07-22 | 2019-11-05 | 武汉一冶建筑安装工程有限责任公司 | Pier stud support installation method |
| CN110952456A (en) * | 2019-12-06 | 2020-04-03 | 中铁十八局集团建筑安装工程有限公司 | Pile type bridge construction process |
| CN111549657A (en) * | 2020-05-22 | 2020-08-18 | 贵州路桥集团有限公司 | Rapid installation method of bridge basin-type rubber support |
| CN114960460A (en) * | 2022-07-13 | 2022-08-30 | 中国二十二冶集团有限公司 | Method for quickly and accurately installing plate type rubber support |
| CN114960460B (en) * | 2022-07-13 | 2023-12-15 | 中国二十二冶集团有限公司 | Method for quickly and accurately mounting plate-type rubber support |
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Application publication date: 20111221 |