CN102286927A - Integral mounting construction method of bridge pier column bent cap reinforcement cage - Google Patents
Integral mounting construction method of bridge pier column bent cap reinforcement cage Download PDFInfo
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- CN102286927A CN102286927A CN2011102458063A CN201110245806A CN102286927A CN 102286927 A CN102286927 A CN 102286927A CN 2011102458063 A CN2011102458063 A CN 2011102458063A CN 201110245806 A CN201110245806 A CN 201110245806A CN 102286927 A CN102286927 A CN 102286927A
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- hanging beam
- reinforcing cage
- cap reinforcing
- reinforcement cage
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Abstract
The invention discloses an integral mounting construction method of a bridge pier column bent cap reinforcement cage, and the method comprises the following steps: 1) erecting a hanging frame on the ground according to the design requirements; 2) lofting the embedded bar on a pier column onto the ground; 3) binding a bent cap steel bar onto the hanging frame to form a bent cap reinforcement cage, and reinforcing through spot welding; 4) transversely penetrating at least two secondary hanging beams through the inner cavity of the bent cap steel bar, and connecting the secondary hanging beam with a primary hanging beam transversely arranged above the bent cap reinforcement cage by use of a primary hanging beam steel wire rope respectively and tensioning, wherein the upper end of the primary hanging beam is hung on a crane through a steel wire rope; 5) hoisting the bent cap reinforcement cage to the embedded bar position on the pier column by use of the crane, and dismantling the hanging frame; and 6) after mounting, sequentially removing the secondary hanging beam and the primary hanging beam, and binding the embedded bars on other pier columns. The construction method of the bent cap reinforcement cage disclosed by the invention can be used for improving the construction safety, guaranteeing the personal safety of workers, improving the operation efficiency, lowering the construction cost and improving the binding quality.
Description
Technical field
The present invention relates to the viaduct technical field of construction, be specially the job practices of a kind of bridge pier column bent cap reinforcing cage integral installation.
Background technology
In existing bridge construction, the construction of pier stud bent cap is that emphasis also is a difficult point, the construction of bent cap at present mainly is to adopt the full framing method, comprise steps such as stencil design, scaffold building, bent cap reinforcing bar binding, template installation and disturbing concrete, but there is following shortcoming in this method: the cycle of 1, setting up is longer; 2, labor intensive is bigger; 3, floor space is bigger, is subjected to the orographic condition restriction comparatively serious.For addressing the above problem, publication number is that the Chinese patent of CN101922143 discloses " a kind of construction method of bent cap ", it is characterized in that elder generation is at installation on ground when assembled formwork, the mode template system that assembly unit is good by lifting is installed on the bracket of column then.Though this mounting method has solved the problem when template is installed, but, but can not solve the dangerous big problem of bent cap reinforcing bar binding process high and medium operation, carry out work high above the ground on the bracing frame that at present when the bent cap reinforcing bar binding, relies on the workman setting up fully, because the set-up time of reinforcing bar is longer, labour intensity is higher, and the danger during workman's operation is bigger, and the also bad control of the quality of colligation moulding, the installation effect is unsatisfactory.
Summary of the invention
At above-mentioned deficiency of the prior art, main purpose of the present invention is to solve big, the dangerous high problem of colligation difficulty at bridge construction middle cover beam steel, and a kind of safe, job practices of bridge pier column bent cap reinforcing cage integral installation efficiently is provided.
Technical scheme of the present invention: bridge pier column bent cap reinforcing cage integral installation job practices comprises the steps:
1), sets up the suspension bracket that is used for colligation bent cap reinforcing cage on the ground according to designing requirement;
2) according to the pre-buried muscle constructional drawing of bridge pier, on the ground with the pre-buried muscle position setting-out on two pier studs of reinforcing cage to be installed;
3) with reference to working design scheme and step 2) described in the position of setting-out, colligation bent cap reinforcing bar makes it form the bent cap reinforcing cage on suspension bracket, and reinforces with the junction of spot welding to the bent cap reinforcing bar;
4) at least two hanging beams are horizontally through from formed bent cap reinforcing cage inner chamber, and by main hanging beam wire rope inferior hanging beam is connected with the main hanging beam that is horizontally set at bent cap reinforcing cage top respectively and strains, make time hanging beam contact with the upper bottom surface of bent cap reinforcing cage, the upper end of described main hanging beam hangs on the crane by wire rope;
5) lift by crane the bent cap reinforcing cage to the pre-buried muscle of pier stud position with crane, and the bent cap reinforcing cage is placed on the bent cap bed die that finishes of constructing, remove suspension bracket then;
6) behind the installation in position, remove time hanging beam and main hanging beam, the pre-buried muscle on all the other pier studs of colligation then successively.
The present invention has adopted the mode of bent cap reinforcing bar in ground colligation moulding, before installation, reserved the pre-buried muscle of pier stud position, and install by crane, mechanization degree and operating efficiency have been improved, working strength of workers and work high above the ground danger have been alleviated, and the colligation of bent cap reinforcing cage can parallelly be carried out with the construction of pier stud, thereby has shortened the set-up time of bent cap reinforcing cage, and ground colligation moulding can more effective control reinforcing bar binding quality.
Further technical scheme all is equipped with batten plate on described hanging beam and main hanging beam.Described batten plate is existing plate, can make by shaped steel, by the shaped steel stability that batten plate can strengthen time hanging beam and main hanging beam is set, prevent from hoisting process, to cause distortion among the present invention, can strengthen the force intensity that is subjected to of hanging beam owing to the hanging beam local pressure is excessive.
Further technical scheme, described time hanging beam is two and all vertical with main hanging beam.
With respect to prior art, the present invention has following beneficial effect:
1, improved working security: the present invention has avoided the long work high above the ground of workman by lifting again after the moulding of ground colligation bent cap reinforcing bar, has reduced danger, has ensured workman's personal safety;
2, improved operating efficiency: saved set-up time of bent cap reinforcing bar in the ground assembling reinforcement, improved mechanized degree and operating efficiency, helped accelerating construction progress, reduced construction cost;
3, help improving the colligation quality: because colligation on the ground, working strength of workers obviously reduces, and therefore can effectively improve laid reinforcement binding intensity, thereby improves the construction quality of bent cap integral body.
Description of drawings
Fig. 1 is for adopting the scheme of installation of bridge pier column bent cap reinforcing cage integral installation job practices of the present invention;
Fig. 2 is the left view of Fig. 1.
Among the figure, 1-bent cap reinforcing cage, 2-inferior hanging beam, 3-main hanging beam wire rope, 4-main hanging beam, 5-wire rope, 6-batten plate.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As depicted in figs. 1 and 2, the job practices of a kind of bridge pier column bent cap reinforcing cage integral installation, it carries out according to following steps:
1. according to designing requirement, set up the suspension bracket that is used for colligation bent cap reinforcing cage 1 on the ground earlier, described suspension bracket is an existing equipment, is used for supporting the bent cap reinforcing bar of process of binding.Because traditional bent cap reinforcing cage is after having set up pier stud when installing, the pier stud two ends in the air are provided with suspension bracket again, and are so not only dangerous high, and the difficulty that the workman aloft operates is very big, and colligation speed is very slow, and the quality of colligation also is difficult to guarantee.Therefore, the present invention is located at building of suspension bracket on the ground, thereby has at one stroke solved the problems referred to above, still, for the bent cap reinforcing cage of colligation on the ground can be complementary with the pier stud construction size, therefore also need take further operation.
2. according to the pre-buried muscle constructional drawing of bridge pier, on the ground with the pre-buried muscle position setting-out on two pier studs of reinforcing cage to be installed.So can make colligation comparatively accurate with reference to setting-out during colligation bent cap reinforcing cage 1 on the ground, improve construction quality.
3. with reference to working design scheme and step 2. described in the position of setting-out, colligation bent cap reinforcing bar makes it form bent cap reinforcing cage 1 on suspension bracket, and reinforces with the junction of spot welding to the bent cap reinforcing bar.
4. two hanging beams 2 are horizontally through from formed bent cap reinforcing cage 1 inner chamber, and respectively by main hanging beam wire rope 3(jack line) inferior hanging beam 2 is connected with the main hanging beam 4 that is horizontally set at bent cap reinforcing cage top and strains, make time hanging beam 2 contact with the upper bottom surface of bent cap reinforcing cage 1, the upper end of described main hanging beam 3 hangs on the crane by wire rope 5.Here the effect of time hanging beam and main hanging beam is the bent cap reinforcing cage that ties up is sling, and adopts mechanical operation more laborsaving, and on inferior hanging beam and main hanging beam batten plate 6 is installed all, can prevent hanging beam local pressure excessive deformation.
5. lift by crane bent cap reinforcing cage 1 to the pre-buried muscle of pier stud position with crane, and bent cap reinforcing cage 1 is placed on the bent cap bed die that finishes of constructing, remove suspension bracket then.
6. behind the installation in position, remove time hanging beam 2 and main hanging beam 4, the pre-buried muscle on all the other pier studs of colligation then successively.
The quantity of the bent cap reinforcing bar of the concrete shape of bent cap reinforcing cage 1 of the present invention, physical dimension, needs and shape etc. all by concrete technological parameter decision, to the bridge pier column of different model, need the bent cap reinforcing cage of respective model; More than can be used as prior art, do not give unnecessary details at this.
Need to prove at last, above embodiment is only in order to illustrate technical scheme of the present invention but not the restriction technologies scheme, although the applicant has been described in detail the present invention with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, the modification that those carry out technical scheme of the present invention or be equal to replacement, and do not break away from the aim and the scope of the technical program, all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. bridge pier column bent cap reinforcing cage integral installation job practices is characterized in that, comprises the steps:
1), sets up the suspension bracket that is used for colligation bent cap reinforcing cage on the ground according to designing requirement;
2) according to the pre-buried muscle constructional drawing of bridge pier, on the ground with the pre-buried muscle position setting-out on two pier studs of reinforcing cage to be installed;
3) with reference to working design scheme and step 2) described in the position of setting-out, colligation bent cap reinforcing bar makes it form the bent cap reinforcing cage on suspension bracket, and reinforces with the junction of spot welding to the bent cap reinforcing bar;
4) at least two hanging beams are horizontally through from formed bent cap reinforcing cage inner chamber, and by main hanging beam wire rope inferior hanging beam is connected with the main hanging beam that is horizontally set at bent cap reinforcing cage top respectively and strains, make time hanging beam contact with the upper bottom surface of bent cap reinforcing cage, the upper end of described main hanging beam hangs on the crane by wire rope;
5) lift by crane the bent cap reinforcing cage to the pre-buried muscle of pier stud position with crane, and the bent cap reinforcing cage is placed on the bent cap bed die that finishes of constructing, remove suspension bracket then;
6) behind the installation in position, remove time hanging beam and main hanging beam, the pre-buried muscle on all the other pier studs of colligation then successively.
2. bridge pier column bent cap reinforcing cage integral installation job practices according to claim 1 is characterized in that, on described hanging beam and main hanging beam batten plate is installed all.
3. bridge pier column bent cap reinforcing cage integral installation job practices according to claim 1 is characterized in that, described time hanging beam is two and all vertical with main hanging beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102458063A CN102286927A (en) | 2011-08-25 | 2011-08-25 | Integral mounting construction method of bridge pier column bent cap reinforcement cage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102458063A CN102286927A (en) | 2011-08-25 | 2011-08-25 | Integral mounting construction method of bridge pier column bent cap reinforcement cage |
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| CN102286927A true CN102286927A (en) | 2011-12-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061265A (en) * | 2013-01-05 | 2013-04-24 | 广东省基础工程公司 | Construction method for lifting combined reinforcement cages |
| CN104894954A (en) * | 2015-04-10 | 2015-09-09 | 成军 | Overall mounting and constructing method of pier stud reinforcing steel bars of urban bridge |
| CN107700362A (en) * | 2017-09-30 | 2018-02-16 | 中国建筑土木建设有限公司 | Hoisting method of continuous beam segment web plate reinforcing steel bar |
| CN108382993A (en) * | 2018-04-28 | 2018-08-10 | 上海二十冶建设有限公司 | The method of control deformation when steel reinforcement cage transverse direction handling |
| CN110629663A (en) * | 2019-09-29 | 2019-12-31 | 中铁大桥局集团有限公司 | Pier body construction method and pier body construction device |
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| CN201240771Y (en) * | 2008-07-25 | 2009-05-20 | 中铁十局集团有限公司 | System for hoisting reinforcement cage |
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2011
- 2011-08-25 CN CN2011102458063A patent/CN102286927A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061265A (en) * | 2013-01-05 | 2013-04-24 | 广东省基础工程公司 | Construction method for lifting combined reinforcement cages |
| CN104894954A (en) * | 2015-04-10 | 2015-09-09 | 成军 | Overall mounting and constructing method of pier stud reinforcing steel bars of urban bridge |
| CN107700362A (en) * | 2017-09-30 | 2018-02-16 | 中国建筑土木建设有限公司 | Hoisting method of continuous beam segment web plate reinforcing steel bar |
| CN108382993A (en) * | 2018-04-28 | 2018-08-10 | 上海二十冶建设有限公司 | The method of control deformation when steel reinforcement cage transverse direction handling |
| CN110629663A (en) * | 2019-09-29 | 2019-12-31 | 中铁大桥局集团有限公司 | Pier body construction method and pier body construction device |
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Application publication date: 20111221 |