CN105672137A - Bridge pier body reinforcement construction method and reinforcement frameworks - Google Patents
Bridge pier body reinforcement construction method and reinforcement frameworks Download PDFInfo
- Publication number
- CN105672137A CN105672137A CN201610163800.4A CN201610163800A CN105672137A CN 105672137 A CN105672137 A CN 105672137A CN 201610163800 A CN201610163800 A CN 201610163800A CN 105672137 A CN105672137 A CN 105672137A
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- steel reinforcement
- framework
- pier body
- reinforcing bar
- reinforcement
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge pier body reinforcement construction method and reinforcement frameworks. The bridge pier body reinforcement construction method comprises the following steps of S1, building a bracket; S2, manufacturing the reinforcement frameworks; S3, installing the bottom reinforcement framework; S4, installing the upper reinforcement framework; S5, installing pier body reinforcements. The bridge pier body reinforcement construction method has the advantages that the positioning of the pier body reinforcements is accurate, and the positioning speed is high; the integral stability of a pier body reinforcement cage is good, and the easiness in vertical position deviation and whole torsion is avoided; the installation quality of a formwork and the form erection speed are improved, and the like; each reinforcement framework comprises two semicircular positioning reinforcements and two transverse reinforcing ribs, the two transverse reinforcing ribs are arranged in parallel, the two semicircular positioning reinforcements are respectively arranged at the two ends of each transverse reinforcing rib, and the two ends of each semicircular positioning reinforcement are respectively welded with one transverse reinforcing rib. The reinforcement framework has the advantages that the structure is simple, the assembly speed is high, the whole stability of the pier body reinforcement cage is improved, and the like.
Description
Technical field
The present invention relates to pier construction method and device, particularly relate to constructional method and the Framework Of Steel Reinforcement of a kind of bridge pier pier body reinforcing bar.
Background technology
Along with the develop rapidly of China's economy, also there is the unprecedented flourish impetus in the high-speed railway cause of China. The construction quality to railroad bridge that improves constantly of the speed of a motor vehicle is had higher requirement, the effect of bridge pier body is to transmit the load discharging bridge superstructure and bearing, it is the important component part of bridge structure, therefore pier construction design and construction quality is no doubt also had higher requirement. Accurately installing also anchor block body reinforcing bar is the key point ensureing bridge pier body concrete cover net thickness and improving pier construction quality.
At present, the constructional method that single root bead connects is adopted usually for the installation binding method of pier body reinforcing bar, bowl button support is first set up before construction, then pier body reinforcing bar and pier body bury reinforcing bar in advance carry out single root bead and connect, until pier body reinforcing bar all weld terminate after form pier body Steel Reinforcement Cage and lay pier body Steel Reinforcement Cage internal stiffeners, subsequently according to by progressively order up bottom pier body, require evenly to be welded on internal stiffeners according to drawing by list root pier body reinforcing bar, the outside stirrup of last colligation again, pier cap steel bar preassembling is embedded in pier body according to drawing requirement after terminating and designs position by pier body reinforcement construction. in use there is obvious deficiency in this constructional method, specific as follows:
(1) location difficulty and locate inaccurate when pier body buries reinforcement construction in advance, can affect erection schedule and the installation quality of pier body reinforcing bar.
(2) after removing the bowl button support of construction; pier body reinforcing bar can cause deviation vertical position not because of integral rigidity; overall twisted phenomena even can occur, and the overall distortion of pier body reinforcing bar can affect quality and the progress of the vertical mould of pier body, and the net thickness of concrete cover also cannot be ensured.
(3) for higher pier body, pier body reinforcing bar can because bearing force without propping up and affect installation rate and alignment quality, it is necessary to sets up lacing wire along pier body Steel Reinforcement Cage surrounding and is fixed, and its stabilising effect is not good.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art; speed is fast, quality good to provide a kind of pier body reinforcing bar to locate; guarantee the net thickness of concrete cover; pier body Steel Reinforcement Cage resistance to overturning is good; do not deviate vertical position, constructional method and the Framework Of Steel Reinforcement of the bridge pier pier body reinforcing bar of overall distortion do not occur.
For solving the problems of the technologies described above, the present invention by the following technical solutions: the constructional method of a kind of bridge pier pier body reinforcing bar, comprises the following steps,
S1: set up support: set up the stationary platform of support as Framework Of Steel Reinforcement;
S2: make Framework Of Steel Reinforcement: make Framework Of Steel Reinforcement according to the shape and size of pier body Steel Reinforcement Cage cross section;
S3: installing bottom layer Framework Of Steel Reinforcement: measure and release some reference mark for pier body Steel Reinforcement Cage location, locate bottom Framework Of Steel Reinforcement according to reference mark, then bottom Framework Of Steel Reinforcement is fixed on the reinforcing bar of concrete foundation end face;
S4: install upper strata Framework Of Steel Reinforcement: the height direction along described support fixedly mounts multistory reinforced skeleton, and ensures that multistory reinforced skeleton all aligns with bottom Framework Of Steel Reinforcement;
S5: install pier body reinforcing bar: lay pier body reinforcing bar along described Framework Of Steel Reinforcement circumference, and be fixedly connected with pier body reinforcing bar with Framework Of Steel Reinforcement to form pier body Steel Reinforcement Cage.
Further improvement as technique scheme:
Described step S4 comprises step by step following:
S4.1: install top layer Framework Of Steel Reinforcement: utilize weight line that the some reference mark on bottom Framework Of Steel Reinforcement are caused top layer Framework Of Steel Reinforcement, it is achieved the location of top layer Framework Of Steel Reinforcement, be then fixed on described support by top layer muscle sample frame;
S4.2: install middle layer Framework Of Steel Reinforcement: utilize connection cord to be connected one to one at each reference mark on bottom Framework Of Steel Reinforcement and top layer Framework Of Steel Reinforcement, realized the location of middle layer Framework Of Steel Reinforcement by described connection cord, then middle layer Framework Of Steel Reinforcement is fixed on described support.
Step S6 is also comprised: scissors support is installed between adjacent two layers Framework Of Steel Reinforcement after step S5.
The Framework Of Steel Reinforcement of a kind of constructional method for above-mentioned bridge pier pier body reinforcing bar, described Framework Of Steel Reinforcement comprises two semicircle location reinforcing bars and two horizontal stiffening webs, described two horizontal stiffening webs are arranged in parallel, described two semicircle location reinforcing bars are divided into horizontal stiffening web two ends, and the two ends of each semicircle location steel muscle are welded with a horizontal stiffening web respectively.
Further improvement as technique scheme:
Described Framework Of Steel Reinforcement also comprises first longitudinal stiffening web and the 2nd longitudinal stiffening web, described first longitudinal stiffening web welds with reinforcing bar two ends, described semicircle location, described 2nd longitudinal stiffening web is welded between two horizontal stiffening webs, is welded with many radial reinforced ribs between described first longitudinal stiffening web and described semicircle location reinforcing bar.
Compared with prior art, it is an advantage of the current invention that: the constructional method of the present invention is first measured and released some reference mark, and location and installation bottom Framework Of Steel Reinforcement, then some upper stratas Framework Of Steel Reinforcement is installed on support and ensures that upper strata Framework Of Steel Reinforcement aligns with bottom Framework Of Steel Reinforcement, the last circumference along Framework Of Steel Reinforcement is laid, anchor block body reinforcing bar, pier body reinforcing bar accurate positioning, location speed is fast; The integral rigidity that Framework Of Steel Reinforcement also can strengthen pier body Steel Reinforcement Cage is set, it is to increase pier body Steel Reinforcement Cage resistance to overturning, deviation and overall distortion can be prevented, it is ensured that the net thickness of concrete cover, is conducive to the Fast Installation of pier body formwork.
Further, scissors support is set between neighbouring two layers of Framework Of Steel Reinforcement, the integral rigidity of pier body Steel Reinforcement Cage can be promoted further.
The Framework Of Steel Reinforcement of the present invention, structure is simple, easy to assembly, contribute to pier body reinforcing bar quick, accurately locate, it is to increase the integral rigidity of pier body Steel Reinforcement Cage, ensures the resistance to overturning of pier body Steel Reinforcement Cage.
Accompanying drawing explanation
Fig. 1 is the schema of the constructional method of bridge pier pier body reinforcing bar of the present invention.
Fig. 2 has been the perspective view of the pier body Steel Reinforcement Cage after construction.
Fig. 3 has been the side-looking structural representation of the pier body Steel Reinforcement Cage after construction.
Fig. 4 is the structural representation of Framework Of Steel Reinforcement of the present invention.
In figure, each label represents: 1, concrete foundation; 2, Framework Of Steel Reinforcement; 21, semicircle location reinforcing bar; 22, horizontal stiffening web; 23, first longitudinal stiffening web; 24, the 2nd longitudinal stiffening web; 25, radial reinforced rib; 3, pier body reinforcing bar; 4, scissors support.
Embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As shown in Figure 1, the constructional method of the bridge pier pier body reinforcing bar of the present embodiment, comprises the following steps,
S1: set up support: set up the stationary platform of support as Framework Of Steel Reinforcement 2, support 1 structure formation is the double-row steel pipe support that engineering field is commonly used, and the specification of single-layer bracket is 1.0x1.5x1.8m;
S2: make Framework Of Steel Reinforcement 2: make Framework Of Steel Reinforcement 2 according to the shape and size of pier body Steel Reinforcement Cage cross section;
S3: installing bottom layer Framework Of Steel Reinforcement 2: measure and release some reference mark for pier body Steel Reinforcement Cage location, bottom Framework Of Steel Reinforcement 2 is located according to reference mark, then bottom Framework Of Steel Reinforcement 2 is fixed on the reinforcing bar of concrete foundation 1 end face, in the present embodiment, the quantity at reference mark is six, mid point and two end points being respectively two semicircle location reinforcing bars 21, the particular location at each reference mark obtains according to working-yard technician's measurement;
S4: install upper strata Framework Of Steel Reinforcement 2: the height direction along support fixedly mounts multistory reinforced skeleton 2, and ensures that multistory reinforced skeleton 2 all aligns with bottom Framework Of Steel Reinforcement 2;
S5: install pier body reinforcing bar 3: lay pier body reinforcing bar 3 along Framework Of Steel Reinforcement 2 circumference, and be fixedly connected with pier body reinforcing bar 3 with Framework Of Steel Reinforcement 2 to form pier body Steel Reinforcement Cage.
Complete the pier body reinforcement cage structure after constructing such as Fig. 2 and as shown in Figure 3, this constructional method pier body reinforcing bar 3 accurate positioning, locate speed fast; The integral rigidity that Framework Of Steel Reinforcement 2 also can strengthen pier body Steel Reinforcement Cage is set, it is to increase pier body Steel Reinforcement Cage resistance to overturning, deviation and overall distortion can be prevented, it is ensured that the net thickness of concrete cover, is conducive to the Fast Installation of pier body formwork.
In the present embodiment, step S4 comprises step by step following:
S4.1: install top layer Framework Of Steel Reinforcement 2: utilize weight line that the some reference mark on bottom Framework Of Steel Reinforcement 2 are caused top layer Framework Of Steel Reinforcement 2, it is achieved the location of top layer Framework Of Steel Reinforcement 2, be then fixed on support by top layer muscle sample frame 2;
S4.2: install middle layer Framework Of Steel Reinforcement 2: utilize connection cord to be connected one to one at each reference mark on bottom Framework Of Steel Reinforcement 2 and top layer Framework Of Steel Reinforcement 2, the location of middle layer Framework Of Steel Reinforcement 2 is realized by connection cord, then middle layer Framework Of Steel Reinforcement 2 is fixed on support, this step can quickly and reliably complete location and the installation of upper strata Framework Of Steel Reinforcement 2, guarantee that upper strata Framework Of Steel Reinforcement 2 aligns with bottom Framework Of Steel Reinforcement 2, thus ensure that pier body reinforcing bar does not deviate.
In the present embodiment, after step S5, also comprise step S6: scissors support 4 is installed between adjacent two layers Framework Of Steel Reinforcement 2, can further improve the integral rigidity of pier body Steel Reinforcement Cage.
As shown in Figure 4, the Framework Of Steel Reinforcement 2 of the present embodiment comprises two semicircle location reinforcing bars 21 and two horizontal stiffening webs 22, two horizontal stiffening webs 22 are arranged in parallel, two semicircle location reinforcing bars 21 are divided into horizontal stiffening web 22 two ends, the two ends of each semicircle location steel muscle 21 respectively stiffening web 22 horizontal with weld, form the Framework Of Steel Reinforcement 2 of kidney ellipsoid, pier body reinforcing bar 3 is laid inside kidney ellipsoid Framework Of Steel Reinforcement 2, pier body reinforcing bar 3 adopts with Framework Of Steel Reinforcement 2 and is welded to connect, this Framework Of Steel Reinforcement 2 structure is simple, easy to assembly, contribute to the quick of pier body reinforcing bar 3, accurately location, improve the integral rigidity of pier body Steel Reinforcement Cage, ensure the resistance to overturning of pier body Steel Reinforcement Cage.
In the present embodiment, Framework Of Steel Reinforcement 2 also comprises first longitudinal stiffening web 23 and the 2nd longitudinal stiffening web 24, first longitudinal stiffening web 23 welds with reinforcing bar 21 two ends, semicircle location, 2nd longitudinal stiffening web 24 is welded between two horizontal stiffening webs 22, is welded with many radial reinforced ribs 25 between first longitudinal stiffening web 23 and semicircle location reinforcing bar 21.
All being welded with scissors support 4 between the longitudinal stiffening web 23 of the first of upper and lower two layers of Framework Of Steel Reinforcement 2 and the 2nd longitudinal stiffening web 24, it is to increase the integral rigidity of pier body Steel Reinforcement Cage, in the present embodiment, scissors support 4 is supportted for C25 shear for cutting steel bar.
Although the present invention discloses as above with better embodiment, but and it is not used to limit the present invention. Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible variations and modification, or be revised as the equivalent embodiment of equivalent variations. Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (5)
1. the constructional method of a bridge pier pier body reinforcing bar, it is characterised in that: comprise the following steps,
S1: set up support: set up the stationary platform of support as Framework Of Steel Reinforcement (2);
S2: make Framework Of Steel Reinforcement (2): make Framework Of Steel Reinforcement (2) according to the shape and size of pier body Steel Reinforcement Cage cross section;
S3: installing bottom layer Framework Of Steel Reinforcement (2): measure and release some reference mark for pier body Steel Reinforcement Cage location, locate bottom Framework Of Steel Reinforcement (2) according to reference mark, then bottom Framework Of Steel Reinforcement (2) is fixed on the reinforcing bar of concrete foundation (1) end face;
S4: install upper strata Framework Of Steel Reinforcement (2): the height direction along described support fixedly mounts multistory reinforced skeleton (2), and ensures that multistory reinforced skeleton (2) all aligns with bottom Framework Of Steel Reinforcement (2);
S5: install pier body reinforcing bar (3): lay pier body reinforcing bar (3) along described Framework Of Steel Reinforcement (2) circumference, and be fixedly connected with to form pier body Steel Reinforcement Cage with Framework Of Steel Reinforcement (2) by pier body reinforcing bar (3).
2. the constructional method of bridge pier pier body reinforcing bar according to claim 1, it is characterised in that: described step S4 comprises step by step following:
S4.1: install top layer Framework Of Steel Reinforcement (2): utilize weight line that the some reference mark on bottom Framework Of Steel Reinforcement (2) are caused top layer Framework Of Steel Reinforcement (2), realize the location of top layer Framework Of Steel Reinforcement (2), then top layer muscle sample frame (2) is fixed on described support;
S4.2: install middle layer Framework Of Steel Reinforcement (2): utilize connection cord to be connected one to one at each reference mark on bottom Framework Of Steel Reinforcement (2) and top layer Framework Of Steel Reinforcement (2), realized the location of middle layer Framework Of Steel Reinforcement (2) by described connection cord, then middle layer Framework Of Steel Reinforcement (2) is fixed on described support.
3. the constructional method of bridge pier pier body reinforcing bar according to claim 1 and 2, it is characterised in that: also comprise step S6 after step S5: scissors support (4) is installed between adjacent two layers Framework Of Steel Reinforcement (2).
4. the Framework Of Steel Reinforcement for the constructional method of the bridge pier pier body reinforcing bar according to any one of claims 1 to 3, it is characterized in that: comprise two semicircle location reinforcing bar (21) and two horizontal stiffening webs (22), described two horizontal stiffening webs (22) are arranged in parallel, described two semicircle location reinforcing bar (21) are divided into horizontal stiffening web (22) two ends, and the two ends of each semicircle location steel muscle (21) are welded with a horizontal stiffening web (22) respectively.
5. Framework Of Steel Reinforcement according to claim 5, it is characterized in that: described Framework Of Steel Reinforcement (2) also comprises first longitudinal stiffening web (23) and the 2nd longitudinal stiffening web (24), described first longitudinal stiffening web (23) is welded with reinforcing bar (21) two ends, described semicircle location, described 2nd longitudinal stiffening web (24) is welded between two horizontal stiffening webs (22), is welded with many radial reinforced ribs (25) between described first longitudinal stiffening web (23) and described semicircle location reinforcing bar (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163800.4A CN105672137B (en) | 2016-03-22 | 2016-03-22 | A kind of construction method and framework of steel reinforcement of bridge pier pier shaft reinforcing bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610163800.4A CN105672137B (en) | 2016-03-22 | 2016-03-22 | A kind of construction method and framework of steel reinforcement of bridge pier pier shaft reinforcing bar |
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| CN105672137A true CN105672137A (en) | 2016-06-15 |
| CN105672137B CN105672137B (en) | 2018-04-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322248A (en) * | 2018-10-12 | 2019-02-12 | 中铁隧道集团二处有限公司 | A kind of Bridge Piers bar reinforcement positioning device and installation method |
| CN113668387A (en) * | 2021-07-08 | 2021-11-19 | 中交路桥建设有限公司 | Modularized construction method for pier body reinforcing steel bars |
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| CN101929249A (en) * | 2010-08-10 | 2010-12-29 | 中铁一局集团有限公司 | Double line stream-line type round end entity pier cap steel bar overall binding construction method |
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| CN104404883A (en) * | 2014-11-19 | 2015-03-11 | 中交四航局第三工程有限公司 | Inner working platform for rapid construction of bridge pier and construction method using inner working platform |
| CN204266115U (en) * | 2014-12-03 | 2015-04-15 | 中铁上海工程局有限公司 | Round end type entity pier shaft clad steel muscle colligation auxiliary positioning mould |
| CN105220619A (en) * | 2015-10-12 | 2016-01-06 | 中铁城建集团第二工程有限公司 | A kind of method of quick manufacture two-wire nose circle solid pier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003239455A (en) * | 2002-02-18 | 2003-08-27 | Kyushu Univ | Concrete support |
| CN101929249A (en) * | 2010-08-10 | 2010-12-29 | 中铁一局集团有限公司 | Double line stream-line type round end entity pier cap steel bar overall binding construction method |
| CN203420229U (en) * | 2013-09-05 | 2014-02-05 | 中铁上海工程局有限公司 | Positioner for reinforcement framework of round-ended solid pier body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322248A (en) * | 2018-10-12 | 2019-02-12 | 中铁隧道集团二处有限公司 | A kind of Bridge Piers bar reinforcement positioning device and installation method |
| CN113668387A (en) * | 2021-07-08 | 2021-11-19 | 中交路桥建设有限公司 | Modularized construction method for pier body reinforcing steel bars |
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| CN105672137B (en) | 2018-04-13 |
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Inventor after: Yan Lizhong Inventor after: Zhang Guangping Inventor after: Li Jinbao Inventor after: Pang Xihai Inventor after: Ren Hongzhuan Inventor after: Guo Zhaohui Inventor after: Wang Hongjin Inventor after: Zhong Gaojie Inventor after: Hu Xiaojun Inventor after: Cao Jianqiu Inventor before: Li Jinbao Inventor before: Ren Hongzhuan Inventor before: Guo Zhaohui Inventor before: Wang Hongjin Inventor before: Zhong Gaojie Inventor before: Hu Xiaojun Inventor before: Cao Jianqiu Inventor before: He Lei Inventor before: Wang Yong |
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