CN102493349A - Method for prefabricating and erecting box girders by using bailey beam - Google Patents
Method for prefabricating and erecting box girders by using bailey beam Download PDFInfo
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- CN102493349A CN102493349A CN201110428825XA CN201110428825A CN102493349A CN 102493349 A CN102493349 A CN 102493349A CN 201110428825X A CN201110428825X A CN 201110428825XA CN 201110428825 A CN201110428825 A CN 201110428825A CN 102493349 A CN102493349 A CN 102493349A
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Abstract
The invention discloses a method for prefabricating and erecting box girders by using a bailey beam. The method comprises the following steps of: erecting a bridge abutment cap on a side span bridge abutment of a first span and respectively erecting first and second pier cap beams on piers on two sides of a second span; respectively arranging at least two bearing pad stones on the bridge abutment cap and the first and second pier cap beams at intervals, and erecting the bailey beam straightly on one bearing pad stones of the bridge abutment cap and the first and second pier cap beams along the longitudinal direction; mounting a pedestal on the bailey beam; preparing first box girders of the first and second spans; shifting the prepared first box girders of the first and second spans and mounting the first box girders on the first and second spans until all box girders expect box girders at the position of the bailey beam are mounted; preparing box girders at the position of the bailey beam and putting the box girders on box girders adjacent to the bailey beam; and detaching the bailey beam and mounting the box girders at the position of the bailey beam. By the method, the labor productivity is improved.
Description
Technical field
The present invention relates to the beam prefabricated erection construction method of a kind of case, relate in particular to a kind of Bei Leiliang of utilization and carry out the beam prefabricated erection construction method of case.
Background technology
In bridge construction, prefabricated case beam is to build a kind of bridge superstructure form that bridge construction the most generally adopts.At present for the prestressed concrete continuous rigid-framed bridge of crossing over deep valley, great river, torrent.Substructure master's bridge bridge pier adopts the hollow thin-wall pier, pile foundation, and superstructure master bridge adopts the job practices of cantilever pouring to construct, and adopts post-tensioned prestressed box beam for the access bridge superstructure more.Case beam for the sheet number is many is prefabricated at precasting yard; Erection construction is more common method by setting a roof beam in place in proper order successively, and few for case beam sheet number, the physical features at the access bridge place discrepancy in elevation again rises and falls big; When physical features is complicated; By routine at precasting yard prefabricated case beam, erection method, the construction relatively the difficulty, also unreasonable economically.
Learn the patent of having authorized through retrieval:
1 application number is that the Chinese patent of CN201010232662.3 discloses " mounting method of post tensioned prestressed concrete box girders ", the present invention relates to a kind of mounting method of post tensioned prestressed concrete box girders.The mounting method of post tensioned prestressed concrete box girders; It is characterized in that it comprises the steps: 1) installation of bracing or strutting arrangement: in a tension of prestressed tendon section; Direction along post tensioned prestressed concrete box girders is installed is laid first bracing frame and second bracing frame; On first bracing frame, lay first slideway, on second bracing frame, lay second slideway; 2) installation of post tensioned prestressed concrete box girders: 1. adopting hoisting weight is that the 100t straddle truck is placed on the handling of 5-12 piece post tensioned prestressed concrete box girders on first slideway and second slideway of bracing or strutting arrangement; 2. through bottle gouard moved by hands post tensioned prestressed concrete box girders is walked on first slideway and second slideway two adjacent post tensioned prestressed concrete boxes are carried out assembly unit.
2 application numbers are: the Chinese patent of CN201010285591.3 discloses " the empty prefabricate of a kind of large concrete boxes deck-molding, move beam, deposit beam, the job practices of assembly unit "; The invention discloses the empty prefabricate of a kind of large concrete boxes deck-molding, move beam, deposit beam, the job practices of assembly unit, it is characterized in that may further comprise the steps: 1) set up high stake prefabricated platform; 2) between high stake prefabricated platform and bridge pier, set up and move joist steel pipe holder and steel slide rail; 3) on high stake prefabricated platform, build the matching beam section; 4) the matching beam section that will build is built new beam section as the end mould of the next one new beam Duan Yiduan to be poured; 5) after new beam section is built, the matching beam section is transported to design attitude as beam section to be assembled, simultaneously new beam section is moved forward as next matching beam section; 6) the coupling face that beam section to be assembled is vertically moved on to the assembled beam section end is as the spliced girder section, the position of adjustment spliced girder section make its meet with bridge pier on the assembled beam section requirement of splicing; 7) spliced girder section and assembled beam section are spliced.Job practices of the present invention through the beam section prefabricate and deposit beam for a long time, effectively make the precast beam section under free state, accomplish most of shrinkage strain of beam body, it is poor because of the different contractions that produce in the length of time to eliminate the adjacent beams section, thereby the elimination crack.
The 1st the disclosed patent of patent " mounting method of post tensioned prestressed concrete box girders " rises and falls big at topographical elevation difference, inapplicable in the bridge in the river, mountain valley that physical features is complicated.
The empty prefabricate of the disclosed case deck-molding of the 2nd patent, move beam, deposit beam, the goal of the invention of the job practices of assembly unit is to eliminate the crack.
Summary of the invention
One object of the present invention is to overcome the deficiency of prior art; Provide a kind of and rise and fall greatly at topographical elevation difference, a kind of Bei Leiliang of utilization carried out the beam prefabricated erection construction method of case when physical features was complicated, adopted this method to improve labor productivity; Practice thrift cost, saved the duration.
A kind of Bei Leiliang of utilization of the present invention carries out the beam prefabricated erection construction method of case, and it may further comprise the steps:
(1) on the second both sides bridge pier of striding that sets up abutment platform cap on the first end bay abutment of striding of having constructed and constructing, sets up the second bridge pier bent cap and the first bridge pier bent cap respectively;
(2) at least two bearing pad stones, longitudinally elongated one Bei Leiliang on a bearing pad stone of abutment platform cap, the first and second bridge pier bent caps then are set at interval respectively on described abutment platform cap, the first and second bridge pier bent caps;
(3) installed base on described Bei Leiliang;
(4) on described pedestal, carry out first and stride the preparation of striding first case beam with second;
(5) will prepare first striding with second first case beam of striding and stride and second step up the position of placing first case beam and install to first of accomplishing from traversing on the pedestal of Bei Leiliang; Wherein the two ends of first first case beam of striding are erected on the bearing pad stone of abutment platform cap and the corresponding setting of the first bridge pier bent cap, second stride first case beam two ends be erected on the bearing pad stone of the first bridge pier bent cap and the corresponding setting of the second bridge pier bent cap;
(6) repeat described step (4) and (5), until installing except that all case beams of shellfish Lei Liang position;
(7) the case beam of preparation shellfish Lei Liang position and the case beam of shellfish Lei Liang position is placed on the case beam with shellfish Lei Liang adjacent position;
(8) remove described Bei Leiliang, will move to the case beam of shellfish Lei Liang position on the case beam of shellfish Lei Liang adjacent position on the bearing pad stone at Bei Leiliang place and install.
The invention has the beneficial effects as follows: this method is not influenced by geographical environment because prefabricated the setting up of case beam is on spanning, to utilize Bei Leiliang to construct, thereby it is big to be applicable to that topographical elevation difference rises and falls, the physical features areas with complicated; Again owing to saved the installation of main equipments such as straddle truck, bridge formation machine when moving beam, thereby improve labor productivity, practiced thrift cost, saved the duration.
Description of drawings
Fig. 1 is the Bei Leiliang installation schematic top plan view that a kind of Bei Leiliang of utilization of the present invention carries out the beam prefabricated erection construction method of case;
Fig. 2 is the shellfish thunder beam pedestal installation schematic top plan view that a kind of Bei Leiliang of utilization of the present invention carries out the beam prefabricated erection construction method of case;
Fig. 3 is the case beam bottom board plate installation schematic top plan view that a kind of Bei Leiliang of utilization of the present invention carries out the beam prefabricated erection construction method of case;
Fig. 4 is the elevational schematic view that a kind of Bei Leiliang of utilization of the present invention carries out the beam prefabricated erection construction method of case;
Fig. 5 is that case beam that a kind of Bei Leiliang of utilization of the present invention carries out the beam prefabricated erection construction method of case moves beam schematic top plan view is installed.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done to describe in detail.
Carry out the beam prefabricated erection construction method of case like a kind of Bei Leiliang of utilization of the present invention shown in the drawings, it may further comprise the steps: (1) constructed first stride set up on 1 the end bay abutment abutment platform cap 4 and constructing second stride on 2 the both sides bridge pier and set up the second bridge pier bent cap 5-2 and the first bridge pier bent cap 5-1 respectively; (2) at described abutment platform cap 4, the first and second bridge pier bent cap 5-1, last at least two bearing pad stone 6-2,7-2,8-2, longitudinally elongated the one shellfish thunder beam 3 on the bearing pad stone of abutment platform cap 4, the first and second bridge pier bent cap 5-1,5-2 then of being provided with at interval respectively of 5-2; (3) installed base on described shellfish thunder beam 3; (4) on described pedestal, carry out first and stride the preparation of striding first case beam with second; (5) will prepare accomplish first stride with second first case beam of striding from the pedestal of Bei Leiliang traversing to first stride 1 and second stride first case beam of 2 placements the position install; Wherein the two ends of first first case beam of striding are erected on the bearing pad stone of abutment platform cap and the corresponding setting of the first bridge pier bent cap, second stride first case beam two ends be erected on the bearing pad stone of the first bridge pier bent cap and the corresponding setting of the second bridge pier bent cap; (6) repeat described step (4) and (5), until installing except that all case beams of shellfish thunder beam 3 positions; (7) the case beam of preparation shellfish thunder beam 3 positions and the case beam of shellfish thunder beam 3 positions is placed on the case beam with shellfish thunder beam 3 adjacent positions; (8) remove described shellfish thunder beam 3, will move to the case beam of shellfish Lei Liang position on the case beam of shellfish Lei Liang adjacent position on the bearing pad stone at Bei Leiliang place and install.The preparation of described case beam adopts conventional existing method to get final product.This method can be referring to " highway bridge and culvert construction technique normalizing 2011 ".
The installation of the pedestal in the preferred described step (3) may further comprise the steps: (a) polylith channel-section steel 9 is laid in the lateral separation on described Bei Leiliang; (b) many i iron of longitudinally elongated laying 11 at the top of described polylith channel-section steel.Advantage is the installation in position of guard box beam forms and the planeness at the bottom of the case beam, makes pedestal that enough bearing capacities arranged, and structural safety.
Further preferably be included in and carry out fullcharging with sand pocket on the channel-section steel and carry the precompressed step in described step (a) with (b).Advantage is: guarantee that the pedestal basis is firm, appearance and size did not change when guard box was beam prefabricated; Avoid in work progress, causing the pedestal sinking and bending; The antiarch value that has guaranteed the setting of case beam bottom board is constant.
Further preferred; In described step (2); When described bearing pad stone is four; On longitudinally elongated second bearing pad stone that is erected at abutment platform cap, the first and second bridge pier bent caps of described shellfish thunder beam 3, and in described step (7), the case beam of shellfish Lei Liang position is placed on the centre position with third and fourth case beam of shellfish Lei Liang adjacent position.Advantage is to carry stressed safety, and on-site construction operations is convenient.
(1) constructed first stride set up on 1 the end bay abutment abutment platform cap 4 and constructing second stride on 2 the both sides bridge pier and set up the second bridge pier bent cap 5-2 and the first bridge pier bent cap 5-1 respectively; (2) at described abutment platform cap 4, the first and second bridge pier bent cap 5-1, last four bearing pad stones, longitudinally elongated the one shellfish thunder beam 3 on second bearing pad stone of abutment platform cap 4, the first and second bridge pier bent cap 5-1,5-2 then of being provided with at interval respectively of 5-2; (3) installed base on described shellfish thunder beam 3; The step that pedestal is installed is: polylith channel-section steel 9 is laid in the lateral separation on described shellfish thunder beam 3; (b) three i iron 11 of longitudinally elongated laying at the top of described polylith channel-section steel 9; (4) described first stride 1, second and stride 2 and whenever stride and comprise four case beam 12-1,12-2,12-3,12-4,13-1,13-2,13-3,13-4, on described pedestal, carry out first and stride the preparation of striding first case beam 12-4,13-4 with second; (5) will prepare first first of accomplishing stride with the second case beam of striding from the pedestal of Bei Leiliang traversing to first stride first case beam of the placement 12-4 that strides with second, install the position of 13-4; Wherein the two ends of first first case beam of striding are erected on the bearing pad stone of abutment platform cap and the corresponding setting of the first bridge pier bent cap, second stride first case beam two ends be erected on the bearing pad stone of the first bridge pier bent cap and the corresponding setting of the second bridge pier bent cap; (6) repeat described step (4) and (5), until installing except that all case beams of shellfish thunder beam 3 positions; (7) the case beam of preparation shellfish Lei Liang position and the case beam of shellfish Lei Liang position is placed on the centre position of the 3rd case beam 13-3 that the 3rd case beam 12-3 striding with first of shellfish Lei Liang adjacent position and the 4th case beam 12-4 and second stride and the 4th case beam 13-4; (8) remove described shellfish thunder beam 3, with installing on the case beam 12-2 of shellfish Lei Liang position, the bearing pad stone that 13-2 moves to the Bei Leiliang place.
Advantage is: few for case beam sheet number, the physical features at the access bridge place discrepancy in elevation again rises and falls greatly, when physical features is complicated; Adopt this patent method to construct, can make beam prefabricated the setting up of case all on spanning, utilize Bei Leiliang to carry out, Bei Leiliang can set up and remove at any time; Very convenient, not influenced by geographical environment.Save the installation of main equipments such as straddle truck, bridge formation machine, thereby improved labor productivity, practiced thrift cost, saved the duration, and economical rationality.
Claims (4)
1. one kind is utilized Bei Leiliang to carry out the beam prefabricated erection construction method of case, it is characterized in that it may further comprise the steps:
(1) on the second both sides bridge pier of striding that sets up abutment platform cap on the first end bay abutment of striding of having constructed and constructing, sets up the second bridge pier bent cap and the first bridge pier bent cap respectively;
(2) at least two bearing pad stones, longitudinally elongated one Bei Leiliang on a bearing pad stone of abutment platform cap, the first and second bridge pier bent caps then are set at interval respectively on described abutment platform cap, the first and second bridge pier bent caps;
(3) installed base on described Bei Leiliang;
(4) on described pedestal, carry out first and stride the preparation of striding first case beam with second;
(5) will prepare first striding with second first case beam of striding and stride and second step up the position of placing first case beam and install to first of accomplishing from traversing on the pedestal of Bei Leiliang; Wherein the two ends of first first case beam of striding are erected on the bearing pad stone of abutment platform cap and the corresponding setting of the first bridge pier bent cap, second stride first case beam two ends be erected on the bearing pad stone of the first bridge pier bent cap and the corresponding setting of the second bridge pier bent cap;
(6) repeat described step (4) and (5), until installing except that all case beams of shellfish Lei Liang position;
(7) the case beam of preparation shellfish Lei Liang position and the case beam of shellfish Lei Liang position is placed on the case beam with shellfish Lei Liang adjacent position;
(8) remove described Bei Leiliang, will move to the case beam of shellfish Lei Liang position on the case beam of shellfish Lei Liang adjacent position on the bearing pad stone at Bei Leiliang place and install.
2. the Bei Leiliang of utilization according to claim 1 carries out the beam prefabricated erection construction method of case, it is characterized in that: the installation of the pedestal in the described step (3) may further comprise the steps: (a) the polylith channel-section steel is laid in the lateral separation on described Bei Leiliang; (b) many i iron of longitudinally elongated laying at the top of described polylith channel-section steel.
3. the Bei Leiliang of utilization according to claim 2 carries out the beam prefabricated erection construction method of case, it is characterized in that: be included in described step (a) with (b) and carry out fullcharging with sand pocket on the channel-section steel and carry the precompressed step.
4. the Bei Leiliang of utilization according to claim 2 carries out the beam prefabricated erection construction method of case; It is characterized in that: in described step (2); When described bearing pad stone is four; On longitudinally elongated second bearing pad stone that is erected at abutment platform cap, the first and second bridge pier bent caps of described Bei Leiliang, and in described step (7), the case beam of shellfish Lei Liang position is placed on the centre position with third and fourth case beam of shellfish Lei Liang adjacent position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428825XA CN102493349B (en) | 2011-12-16 | 2011-12-16 | Method for prefabricating and erecting box girders by using bailey beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428825XA CN102493349B (en) | 2011-12-16 | 2011-12-16 | Method for prefabricating and erecting box girders by using bailey beam |
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| CN102493349A true CN102493349A (en) | 2012-06-13 |
| CN102493349B CN102493349B (en) | 2013-08-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631332A (en) * | 2015-01-16 | 2015-05-20 | 中国电建集团成都勘测设计研究院有限公司 | Prestressed concrete T-shaped beam on-site prefabricating erection construction method |
| CN105464403A (en) * | 2015-12-16 | 2016-04-06 | 华煜建设集团有限公司 | Simple connecting bridge |
| CN106012847A (en) * | 2016-05-27 | 2016-10-12 | 中交四公局第二工程有限公司 | Bailey frame support precast hollow slab process |
| CN111395178A (en) * | 2020-03-25 | 2020-07-10 | 中电建十一局工程有限公司 | Single-span 40m long prestressed T beam construction method |
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| CN101392501A (en) * | 2007-09-17 | 2009-03-25 | 上海远东国际桥梁建设有限公司 | Erection method for wide span steel box bridge |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631332A (en) * | 2015-01-16 | 2015-05-20 | 中国电建集团成都勘测设计研究院有限公司 | Prestressed concrete T-shaped beam on-site prefabricating erection construction method |
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| CN105464403A (en) * | 2015-12-16 | 2016-04-06 | 华煜建设集团有限公司 | Simple connecting bridge |
| CN105464403B (en) * | 2015-12-16 | 2018-02-16 | 华煜建设集团有限公司 | A kind of simple connection bridge |
| CN106012847A (en) * | 2016-05-27 | 2016-10-12 | 中交四公局第二工程有限公司 | Bailey frame support precast hollow slab process |
| CN106012847B (en) * | 2016-05-27 | 2018-01-02 | 中交四公局第二工程有限公司 | Bailey bracket supports precast hollow slab technique |
| CN111395178A (en) * | 2020-03-25 | 2020-07-10 | 中电建十一局工程有限公司 | Single-span 40m long prestressed T beam construction method |
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| Publication number | Publication date |
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| CN102493349B (en) | 2013-08-21 |
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