CN113944110A - Precast beam slab pedestal construction method - Google Patents
Precast beam slab pedestal construction method Download PDFInfo
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- CN113944110A CN113944110A CN202111392895.4A CN202111392895A CN113944110A CN 113944110 A CN113944110 A CN 113944110A CN 202111392895 A CN202111392895 A CN 202111392895A CN 113944110 A CN113944110 A CN 113944110A
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- foundation
- beam slab
- steel
- base
- pedestal
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 92
- 239000010959 steel Substances 0.000 claims abstract description 92
- 238000004519 manufacturing process Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 28
- 230000002787 reinforcement Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims 2
- 239000011241 protective layer Substances 0.000 abstract description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
Abstract
The invention provides a construction method of a precast beam slab pedestal, which comprises the following steps: setting a material processing area, a beam plate production area and a beam storage area according to a beam plate design drawing; performing land survey according to the position of the beam slab prefabricated field; designing a beam yard foundation treatment scheme according to the geological survey data; filling the site according to the beam site layout; carrying out site hardening and drainage facility construction; constructing a gantry crane track foundation and installing a track and a gantry crane; arranging a base of a platform film in a production area of the beam field; binding and constructing the foundation steel bars of the base film; two sides of the base of the platform film are installed by adopting 5# channel steel; mounting a base template of the base film; pouring and maintaining concrete; and (5) mounting a steel plate with the thickness of 5 mm. The method solves the problem that the beam slab arch camber is caused by tensioning in the production of the precast beam slab, so that the subsequent construction reinforcing steel bar protective layer for bridge deck pavement is not enough, and the beam slab arch camber can be counteracted by arranging the inverted arch on the precast pedestal during tensioning.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of a precast beam slab pedestal.
Background
At present, the economy is rapidly developed, the traffic demand is increasingly increased, the construction of railway networks and road networks needs to be improved continuously, and the construction of bridges is particularly important. In order to ensure the maximum spanning capacity of a bridge in bridge design, the design of a large-span bridge is increasingly adopted, and in order to ensure the safety of the bridge, the prestress is applied to a plurality of structures to eliminate unfavorable bending moment, so that the structures are in a better stress state, and especially the prestress is applied to the construction of bridge beam plates. In order to accelerate the construction progress of the bridge, the bridge beam plates are produced in a prefabricated batch mode, the beam plate structure is arched due to the fact that prestressed tendons stretch in the beam plate prefabrication production process, if the arching is too large, after the beam plates are installed, the bridge deck pavement is constructed, and the problem that a concrete reinforcement protective layer is not enough due to the arching of the beam plates can be solved. In order to counteract the fact that the concrete reinforcing steel bar protective layer of the pavement layer is not enough due to arching of the beam plates during bridge construction, the method for reducing the elevation of the pad stones is adopted, although the thickness of the concrete reinforcing steel bar protective layer of the bridge deck pavement is ensured, the concrete amount of the non-arching part of the beam plates is increased, and the construction cost is additionally increased.
Disclosure of Invention
In view of the above, the invention provides a construction method of a precast beam slab pedestal, and aims to solve the problem of insufficient protective layer during bridge deck pavement construction due to beam slab arching. .
In one aspect, the invention provides a precast beam slab pedestal construction method, which comprises the following steps:
step 1: setting a material processing area, a beam plate production area and a beam storage area according to a beam plate design drawing;
step 2: performing land survey according to the position of the beam slab prefabricated field, and checking the underground geological condition of the beam field area;
and step 3: designing a beam yard foundation treatment scheme according to the geological survey data to enable the bearing capacity of the foundation to meet the production requirement of the beam yard;
and 4, step 4: filling the site on the site with the treated foundation according to the beam yard layout, wherein the filling is compacted by filling in layers, and the thickness of each layer is not more than 30cm until the filling is finished;
and 5: after the beam yard is filled, carrying out site hardening and drainage facility construction according to a site layout drawing;
step 6: constructing a gantry crane track foundation at a corresponding position of a beam yard according to a beam yard site planning layout, and installing a track and a gantry crane;
and 7: arranging a base of a platform film in a production area of the beam field;
and 8: binding and constructing the foundation steel bars of the base film;
and step 9: two sides of the base of the platform film are installed by adopting 5# channel steel;
step 10: installing a template on a base of the base, installing the template on the base of the bound steel bars, checking the height and the position of a channel of a split bolt, the height and the position of the steel bars and channel steel before the template is folded, and closing the die after the requirement is met;
step 11: pouring and maintaining concrete, namely pouring the concrete on the base film, pouring the concrete in a layered mode when pouring the concrete, closely vibrating the concrete, and checking the position and the elevation of the channel steel when pouring, wherein the position and the elevation of the channel steel must be guaranteed to be accurate;
step 12: and (3) installing a steel plate with the thickness of 5mm, processing the steel plate with the thickness of 5mm after the foundation concrete of the platform film is cured to meet the requirement, wherein the size of the steel plate is consistent with that of the platform film, and welding the steel plate with channel steel on the platform film.
Further, in the step 3, foundation treatment is carried out on the beam slab production area and the beam storage area in a planned field according to a foundation treatment scheme, and special reinforcement treatment needs to be carried out on two ends of a post-tensioning beam slab pedestal and two ends of the pedestal, so that quality accidents caused by insufficient bearing capacity of the foundation with stress concentration at two ends after tensioning and arching are prevented.
Further, in the step 4, a settlement plate is installed during the filling of the soft foundation section, the foundation settlement is monitored, and the site can be subjected to subsequent construction after the site has to meet the stability requirement.
Further, in said step 6, the rail foundation must be guaranteed to be flat, solid and have a certain resistance to overturning.
Further, in the step 7, the number of the stage films is determined according to the number of the produced beams and the progress requirement.
Further, the quantity of steel bars used by the base of the base film and the height of the base need to be determined by load checking calculation.
Further, the length and the width of the table film are consistent with the designed length of the beam plate and the bottom width of the beam plate.
Further, in the step 8, steel bars are bound according to the arrangement of the foundation steel bars of the platform film, and the height of the steel bars is adjusted according to the height of the platform film.
Furthermore, the elevations of the two ends of the platform membrane are the same, the elevation of the position of the center of the platform membrane is set to be lower than the elevations of the two ends by 1/2 beam plates, the arching value is designed to enable the moulding bed to be set to be lower in the middle and higher at the two ends to form a linear change trend, and a split bolt hole channel is reserved at a position 5cm away from the top of the platform membrane during steel bar binding, so that a template is fixed during beam plate production.
Further, in step 9, after the installation of the steel bars, 5# channel steel is installed at the bottom plate of the platform membrane, the position of the channel steel must be consistent with the width of the bottom of the beam slab, the height difference of the top of the channel steel must be the same as the height difference of the platform membrane, and the channel steel and the steel reinforcement framework are welded firmly.
Compared with the prior art, the method has the advantages that the problem that the beam slab arch camber is caused by tensioning in the production of the precast beam slab, and the subsequent construction reinforcing steel bar protective layer of the bridge deck pavement is not enough is solved, the beam slab arch camber can be offset during tensioning by arranging the inverted arch on the precast pedestal, and the method is simple to operate, high in practicability, obvious in effect and capable of saving cost.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart of a precast beam slab pedestal construction method according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the embodiment provides a precast beam slab pedestal construction method, including:
step 1: setting a material processing area, a beam plate production area and a beam storage area according to a beam plate design drawing;
step 2: performing land survey according to the position of the beam slab prefabricated field, and checking the underground geological condition of the beam field area;
and step 3: designing a beam yard foundation treatment scheme according to the geological survey data to enable the bearing capacity of the foundation to meet the production requirement of the beam yard;
and 4, step 4: filling the site on the site with the treated foundation according to the beam yard layout, wherein the filling is compacted by filling in layers, and the thickness of each layer is not more than 30cm until the filling is finished;
and 5: after the beam yard is filled, carrying out site hardening and drainage facility construction according to a site layout drawing;
step 6: constructing a gantry crane track foundation at a corresponding position of a beam yard according to a beam yard site planning layout, and installing a track and a gantry crane;
and 7: arranging a base of a platform film in a production area of the beam field;
and 8: binding and constructing the foundation steel bars of the base film;
and step 9: two sides of the base of the platform film are installed by adopting 5# channel steel;
step 10: installing a template on a base of the base, installing the template on the base of the bound steel bars, checking the height and the position of a channel of a split bolt, the height and the position of the steel bars and channel steel before the template is folded, and closing the die after the requirement is met;
step 11: pouring and maintaining concrete, namely pouring the concrete on the base film, pouring the concrete in a layered mode when pouring the concrete, closely vibrating the concrete, and checking the position and the elevation of the channel steel when pouring, wherein the position and the elevation of the channel steel must be guaranteed to be accurate;
step 12: and (3) installing a steel plate with the thickness of 5mm, processing the steel plate with the thickness of 5mm after the foundation concrete of the platform film is cured to meet the requirement, wherein the size of the steel plate is consistent with that of the platform film, and welding the steel plate with channel steel on the platform film.
Specifically, in the step 3, foundation treatment is performed on the beam slab production area and the beam storage area in a planned field according to a foundation treatment scheme, and special reinforcement treatment needs to be performed on two ends of a post-tensioning beam slab pedestal, so that quality accidents caused by insufficient foundation bearing capacity due to stress concentration at two ends after tensioning and arching are prevented.
Specifically, in the step 4, a settlement plate is installed during the filling of the soft foundation section, the foundation settlement is monitored, and the site can be subjected to subsequent construction after meeting the stability requirement.
In particular, in said step 6, the rail foundation must be guaranteed to be flat, solid and have a certain resistance to overturning.
Specifically, in step 7, the number of stage films is determined according to the number of beams to be produced and the progress requirement.
Specifically, the quantity of steel bars used by the base of the base film and the height of the base need to be determined by load checking calculation.
Specifically, the length and width of the table film are consistent with the designed length and bottom width of the beam plate.
Specifically, in the step 8, steel bars are bound according to the arrangement of foundation steel bars of the platform film, and the height of the steel bars is adjusted according to the height of the platform film.
Specifically, the elevations of the two ends of the platform membrane are the same, the elevation of the center of the platform membrane is lower than the elevations of the two ends by 1/2 beam plates, the arching value is designed, so that the tire membrane is set to be in a linear change trend with the middle lower than the two ends, and a split bolt hole channel is reserved at a position 5cm away from the top of the platform membrane during steel bar binding, so that a template is fixed during beam plate production.
Specifically, in step 9, after the reinforcing steel bars are installed, 5# channel steel is installed at the bottom plate of the platform membrane, the position of the channel steel must be consistent with the width of the bottom of the beam slab, the height difference of the top of the channel steel must be the same as the height difference of the platform membrane, and the channel steel and the reinforcing steel bar framework are welded firmly.
Above-mentioned embodiment has solved in the production of precast beam slab because the stretch-draw leads to the beam slab to arch, leads to the bridge deck pavement follow-up construction steel bar protective layer not enough problem, through set up the anti-arch on the precast pedestal, can offset the beam slab and arch when carrying out the stretch-draw, and this method easy operation, the practicality is high to the effect is obvious, and can play the cost-effective.
When the embodiment is specifically implemented, the principle of the construction method of the precast beam slab pedestal of the embodiment is as follows: according to the beam slab tensioning design arching value, the reverse camber is reasonably arranged on the beam slab production pedestal, partial arching value can be offset during tensioning, and the bridge deck pavement construction thickness of the beam slab upper structure is ensured. The specific method comprises the following steps:
step 1: and planning a beam slab prefabricating field according to a beam slab design drawing, and reasonably setting a material processing area, a beam slab production area and a beam storage area.
Step 2: and performing land survey according to the site position of the beam slab prefabricated site, and checking the underground geological condition of the beam site area.
And step 3: and designing a beam yard foundation treatment scheme according to the geological survey data to ensure that the bearing capacity of the foundation meets the production requirement of the beam yard. The foundation treatment is carried out on the beam slab production area and the beam storage area in a planned field according to a foundation treatment scheme, and special reinforcement treatment is further needed to be carried out on the two ends of a beam slab pedestal constructed by a post-tensioning method, so that quality accidents caused by the fact that stress concentration at the two ends of the foundation bearing capacity is insufficient to the beam slab after tensioning and arching are prevented.
And 4, step 4: and filling the site on the site with the treated foundation according to the beam yard layout, wherein the site filling material meets the filling requirement of the highway subgrade, and the filling is compacted by filling in layers, wherein the thickness of each layer is not more than 30cm until the filling is finished. Still need rationally install the settlement plate during soft basic district's filling, monitor foundation settlement, the place must reach stable requirement the back can carry out follow-up construction.
And 5: after the beam yard is filled, site hardening and drainage facility construction are carried out according to site layout drawings, drainage facilities are reasonably arranged, and a good drainage system is guaranteed to be arranged in the site.
Step 6: and constructing a gantry crane track foundation at the corresponding position of the beam yard according to the beam yard site planning layout, and installing the track and the gantry crane. The rail foundation must be flat, solid and have a certain resistance to overturning.
And 7: and arranging a base of the platform film in the production area of the beam field. The number of the table membranes is determined according to the number of the produced beams and the progress requirement. The quantity of steel bars used by the base of the platform film and the height of the base need to be determined by load checking calculation, and the base of the platform film needs to have certain anti-overturning capacity. The length and the width of the table membrane are consistent with the designed length of the beam plate and the bottom width of the beam plate.
And 8: and (5) binding and constructing the foundation steel bars of the base film. And binding the steel bars according to the arrangement of the foundation steel bars of the platform film, and adjusting the height of the steel bars according to the height of the platform film. The elevations of the two ends of the platform membrane are the same, the elevation of the position of the center of the platform membrane is set to be 1/2 beam slab arching values (the beam slab arching values are the values of beam slab tensioning technical specifications) lower than the elevations of the two ends, and the bed mould is set to be in a linear variation trend with the middle lower and the two ends higher. And reserving a split bolt hole channel at a position 5cm away from the top of the platform membrane during steel bar binding, and fixing a template during beam slab production.
And step 9: two sides of the base of the platform film are installed by 5# channel steel. After the steel bar is installed, 5# channel steel is installed at the bottom plate of the platform membrane, the position of the channel steel must be consistent with the width of the bottom of the beam slab, the height difference of the top of the channel steel must be identical to the height difference of the platform membrane, and the channel steel is firmly welded with a steel reinforcement framework.
Step 10: and (5) mounting a base template of the base film. And (3) installing a template on the platform membrane basis of the bound steel bars, checking the elevation and the position of a split bolt hole channel, the steel bars and channel steel before the template is folded, and performing die assembly after the requirements are met.
Step 11: and (5) pouring and maintaining concrete. Concrete placement is carried out to the platform membrane basis, and it is closely knit to need the layering to pour and vibrate when concreting, and the channel-section steel position and elevation are checked to the attention in the time of pouring, and the position and the elevation that must guarantee the channel-section steel are accurate.
Step 12: and (5) mounting a steel plate with the thickness of 5 mm. After the foundation concrete of the platform membrane is cured to meet the requirements, a steel plate with the size being equal to that of the platform membrane is processed, and the steel plate is welded with channel steel on the platform membrane (the steel plate is not connected with the platform membrane together to ensure the flatness of the bottom of the beam plate and the pouring of the beam plate during the production of the beam plate, so that the appearance defect of the beam plate is caused).
It can be seen that the problem that the bridge deck pavement follow-up construction steel bar protection layer is not enough due to the fact that the beam slab arches caused by tensioning in the production of the prefabricated beam slab is solved, the beam slab arches can be offset during tensioning by arranging the inverted arch on the prefabricated pedestal, and the method is simple in operation, high in practicability, obvious in effect and capable of saving cost.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A precast beam slab pedestal construction method is characterized by comprising the following steps:
step 1: setting a material processing area, a beam plate production area and a beam storage area according to a beam plate design drawing;
step 2: performing land survey according to the position of the beam slab prefabricated field, and checking the underground geological condition of the beam field area;
and step 3: designing a beam yard foundation treatment scheme according to the geological survey data to enable the bearing capacity of the foundation to meet the production requirement of the beam yard;
and 4, step 4: filling the site on the site with the treated foundation according to the beam yard layout, wherein the filling is compacted by filling in layers, and the thickness of each layer is not more than 30cm until the filling is finished;
and 5: after the beam yard is filled, carrying out site hardening and drainage facility construction according to a site layout drawing;
step 6: constructing a gantry crane track foundation at a corresponding position of a beam yard according to a beam yard site planning layout, and installing a track and a gantry crane;
and 7: arranging a base of a platform film in a production area of the beam field;
and 8: binding and constructing the foundation steel bars of the base film;
and step 9: two sides of the base of the platform film are installed by adopting 5# channel steel;
step 10: installing a template on a base of the base, installing the template on the base of the bound steel bars, checking the height and the position of a channel of a split bolt, the height and the position of the steel bars and channel steel before the template is folded, and closing the die after the requirement is met;
step 11: pouring and maintaining concrete, namely pouring the concrete on the base film, pouring the concrete in a layered mode when pouring the concrete, closely vibrating the concrete, and checking the position and the elevation of the channel steel when pouring, wherein the position and the elevation of the channel steel must be guaranteed to be accurate;
step 12: and (3) installing a steel plate with the thickness of 5mm, processing the steel plate with the thickness of 5mm after the foundation concrete of the platform film is cured to meet the requirement, wherein the size of the steel plate is consistent with that of the platform film, and welding the steel plate with channel steel on the platform film.
2. The method for constructing a precast beam slab pedestal according to claim 1, wherein in the step 3, foundation treatment is performed on a beam slab production area and a beam storage area according to a foundation treatment scheme in a planned field, and special reinforcement treatment is further performed on two ends of the pedestal of the beam slab pedestal constructed by a post-tensioning method to prevent quality accidents caused by insufficient foundation bearing force due to stress concentration at two ends after tensioning and arching.
3. The precast beam slab pedestal construction method according to claim 1, wherein in the step 4, a settlement plate is installed during the filling of the soft foundation section, the settlement of the foundation is monitored, and the site can be constructed later after the site has reached the stability requirement.
4. The precast beam slab foundation construction method according to claim 1, wherein in the step 6, the rail foundation must be guaranteed to be flat, firm, and have a certain anti-overturning capability.
5. The precast beam slab foundation construction method according to claim 1, wherein in the step 7, the number of the slabs is determined according to the number of the produced beams and the schedule requirement.
6. The precast beam slab pedestal construction method according to claim 5, wherein the number of the steel bars used for the pedestal foundation and the height of the foundation are determined by load checking.
7. The precast beam slab pedestal construction method according to claim 6, wherein the length and width of the platform film are identical to the designed length of the beam slab and the bottom width of the beam slab.
8. The precast beam slab pedestal construction method according to claim 1, wherein in the step 8, reinforcement binding is performed according to a pedestal base reinforcement arrangement, and a height of the reinforcement is adjusted according to a pedestal height.
9. The precast beam slab pedestal construction method according to claim 8, wherein the heights of both ends of the platform membrane are the same, the elevation of the right center of the platform membrane is set to be lower than the elevations of both ends by 1/2 beam slab design arching values, so that the tire membrane is set to have a linear variation trend of the middle height and the heights of both ends, and split bolt channels are reserved at a position 5cm below the top of the platform membrane during steel bar binding, so as to fix a template during beam slab production.
10. The precast beam slab pedestal construction method according to claim 1, wherein in the step 9, after the steel bars are installed, a 5# channel steel is installed at the position of the bottom plate of the formwork, the position of the channel steel must be consistent with the width of the bottom of the beam slab, the height difference of the top of the channel steel must be the same as the height difference of the formwork, and the channel steel and the steel reinforcement framework are welded firmly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111392895.4A CN113944110A (en) | 2021-11-23 | 2021-11-23 | Precast beam slab pedestal construction method |
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| CN202111392895.4A CN113944110A (en) | 2021-11-23 | 2021-11-23 | Precast beam slab pedestal construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116378004A (en) * | 2023-04-21 | 2023-07-04 | 中铁大桥局集团第二工程有限公司 | Construction method of integral steel-concrete pedestal of soft soil foundation bridge deck slab |
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| JPH03172405A (en) * | 1989-11-30 | 1991-07-25 | Kawada Kensetsu Kk | Erection method for arch bridge by precast member |
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| CN105625462A (en) * | 2014-10-27 | 2016-06-01 | 中铁十四局集团有限公司 | Precast beam pedestal construction process |
| CN109577212A (en) * | 2019-01-23 | 2019-04-05 | 中水电第十工程局（郑州）有限公司 | A kind of pretensioned prestressing Precasting Pedestal Construction method |
| CN111319118A (en) * | 2020-02-27 | 2020-06-23 | 中交二公局第四工程有限公司 | Prefabrication construction method of box girder in plateau valley bridge construction |
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2021
- 2021-11-23 CN CN202111392895.4A patent/CN113944110A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172405A (en) * | 1989-11-30 | 1991-07-25 | Kawada Kensetsu Kk | Erection method for arch bridge by precast member |
| CN102943440A (en) * | 2012-11-06 | 2013-02-27 | 天津二十冶建设有限公司 | Method for constructing bridges |
| CN105625462A (en) * | 2014-10-27 | 2016-06-01 | 中铁十四局集团有限公司 | Precast beam pedestal construction process |
| CN105345926A (en) * | 2015-09-25 | 2016-02-24 | 安徽水利开发股份有限公司 | Prefabricated construction method for prestressed concrete box girder |
| CN109577212A (en) * | 2019-01-23 | 2019-04-05 | 中水电第十工程局（郑州）有限公司 | A kind of pretensioned prestressing Precasting Pedestal Construction method |
| CN111319118A (en) * | 2020-02-27 | 2020-06-23 | 中交二公局第四工程有限公司 | Prefabrication construction method of box girder in plateau valley bridge construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116378004A (en) * | 2023-04-21 | 2023-07-04 | 中铁大桥局集团第二工程有限公司 | Construction method of integral steel-concrete pedestal of soft soil foundation bridge deck slab |
| CN116378004B (en) * | 2023-04-21 | 2023-12-29 | 中铁大桥局集团第二工程有限公司 | Construction method of integral steel-concrete pedestal of soft soil foundation bridge deck slab |
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Application publication date: 20220118 |