CN105672137B - A kind of construction method and framework of steel reinforcement of bridge pier pier shaft reinforcing bar - Google Patents
A kind of construction method and framework of steel reinforcement of bridge pier pier shaft reinforcing bar Download PDFInfo
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- CN105672137B CN105672137B CN201610163800.4A CN201610163800A CN105672137B CN 105672137 B CN105672137 B CN 105672137B CN 201610163800 A CN201610163800 A CN 201610163800A CN 105672137 B CN105672137 B CN 105672137B
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- steel reinforcement
- framework
- pier shaft
- reinforcing
- reinforcing bar
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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
-
- 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 kind of construction method and framework of steel reinforcement of bridge pier pier shaft reinforcing bar, construction method includes step, S1：Set up stent；S2：Make framework of steel reinforcement；S3：Installing bottom layer framework of steel reinforcement；S4：Upper strata framework of steel reinforcement is installed；S5：Pier shaft reinforcing bar is installed, which has pier shaft reinforcing bar accurate positioning, and locating speed is fast；The overall stability of pier shaft steel reinforcement cage is good, is not susceptible to vertical position and deviates and overall distortion；The advantages that improving model sheetinstallat quality and formwork erection speed；Framework of steel reinforcement includes two semicircle spacer bars and two cross reinforcings, two cross reinforcings parallel arrangement, described two semicircle spacer bars are divided into cross reinforcing both ends, welded respectively with a cross reinforcing at the both ends of each semicircle spacer bar, the framework of steel reinforcement has the advantages that simple in structure, assembling speed is fast, improves the overall stability of pier shaft steel reinforcement cage.
Description
Technical field
The present invention relates to pier construction method and device, more particularly to a kind of construction method and reinforcing bar of bridge pier pier shaft reinforcing bar
Skeleton.
Background technology
With the fast development of Chinese economy, also there is the unprecedented booming impetus in the high-speed railway cause in China.Car
The continuous improvement of speed proposes the construction quality of railroad bridge the requirement of higher, and the effect of bridge pier shaft is to transmit release bridge
The load that beam superstructure is born, is the important component of bridge structure, therefore to pier construction design and construction quality
No doubt also there is the requirement of higher.It is accurate install and fix pier shaft reinforcing bar be ensure bridge pier shaft concrete cover effective thickness and
Improve the key point of pier construction quality.
At present, the construction method of the installation single welding of binding method generally use for pier shaft reinforcing bar, before construction first
Bowl buckle stent is set up, pier shaft reinforcing bar and pier shaft embedded bar are then subjected to single welding, to the end of pier shaft reinforcing bar all welding
Formed afterwards and pier shaft steel reinforcement cage and lay pier shaft steel reinforcement cage internal stiffeners, subsequently according to by pier shaft bottom progressively up suitable
Sequence, exterior stirrup, pier shaft steel are finally bound by single pier shaft reinforcing bar again according to drawing requirement uniform welding on internal stiffeners
Pier cap reinforcing bar is embedded in pier shaft design position according to drawing requirement after muscle construction.The construction method is deposited in use
It is specific as follows clearly disadvantageous：
（1）Location difficulty and position inaccurate when pier shaft embedded bar is constructed, can influence pier shaft reinforcing bar installation progress and
Installation quality.
（2）After removing working bowl buckle stent, pier shaft reinforcing bar not enough can cause deviation vertical position because of overall stiffness,
Overall twisted phenomena even can occur, pier shaft reinforcing bar integrally distorts the quality and progress that can influence pier shaft formwork erection, concrete protective
The effective thickness of layer can not also be guaranteed.
（3）For higher pier shaft, pier shaft reinforcing bar can be needed because influencing installation speed and alignment quality without supporting stress point
Lacing wire is set up along pier shaft steel reinforcement cage surrounding to be fixed, and its stablizing effect is bad.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies of the prior art and provide a kind of pier shaft reinforcing bar locating speed
Hurry up, quality it is good, it is ensured that the effective thickness of concrete cover, pier shaft steel reinforcement cage overall stability is good, without departing from vertical position, no
The construction method and framework of steel reinforcement of bridge pier pier shaft reinforcing bar integrally distorted occurs.
In order to solve the above technical problems, the present invention uses following technical scheme：A kind of construction method of bridge pier pier shaft reinforcing bar,
Comprise the following steps,
S1：Set up stent：Set up fixed platform of the stent as framework of steel reinforcement；
S2：Make framework of steel reinforcement：Framework of steel reinforcement is made according to the shape and size of pier shaft steel reinforcement cage cross section；
S3：Installing bottom layer framework of steel reinforcement：Some control points for the positioning of pier shaft steel reinforcement cage are released in measurement, according to control point
Bottom layer of the reinforcing steel skeleton is positioned, is then fixed on bottom layer of the reinforcing steel skeleton on the reinforcing bar of concrete foundation top surface；
S4：Upper strata framework of steel reinforcement is installed：Multistory reinforced skeleton is fixedly mounted along the short transverse of the stent, and ensures more
Layer framework of steel reinforcement aligns with bottom layer of the reinforcing steel skeleton；
S5：Pier shaft reinforcing bar is installed：Pier shaft reinforcing bar is circumferentially placed along the framework of steel reinforcement, and by pier shaft reinforcing bar and reinforcing bar
Frame is fixedly connected to form pier shaft steel reinforcement cage.
Further as above-mentioned technical proposal is improved：
The step S4 include it is following step by step：
S4.1：Top layer framework of steel reinforcement is installed：Some control points on bottom layer of the reinforcing steel skeleton are led to top layer using weight line
Framework of steel reinforcement, realizes the positioning of top layer framework of steel reinforcement, and then top layer muscle sample rack is fixed on the stent；
S4.2：Intermediate layer framework of steel reinforcement is installed：Will be each on bottom layer of the reinforcing steel skeleton and top layer framework of steel reinforcement using connecting rope
Control point connects one to one, and the positioning of intermediate layer framework of steel reinforcement is realized by the connecting rope, then by intermediate layer reinforcing bar
Frame is fixed on the stent.
Step S6 is further included after step S5：Bridging is installed between adjacent two layers framework of steel reinforcement.
A kind of framework of steel reinforcement of construction method for above-mentioned bridge pier pier shaft reinforcing bar, the framework of steel reinforcement include two semicircles
Shape spacer bar and two cross reinforcings, two cross reinforcings parallel arrangement, described two semicircle spacer bars
Cross reinforcing both ends are divided into, the both ends of each semicircle spacer bar are welded with a cross reinforcing respectively.
Further as above-mentioned technical proposal is improved：
The framework of steel reinforcement further includes first longitudinal direction reinforcing rib and second longitudinal direction reinforcing rib, the first longitudinal direction reinforcing rib with
Semicircle spacer bar both ends welding, the second longitudinal direction reinforcing rib are welded between two cross reinforcings, and described the
More radial reinforcing ribs are welded between one waling and the semicircle spacer bar.
Compared with prior art, the advantage of the invention is that：The construction method of the present invention, which first measures, releases some control points,
And location and installation bottom layer of the reinforcing steel skeleton, then some top bars skeletons are installed on stent and ensure top bars skeleton and bottom
Layer framework of steel reinforcement alignment, circumferential direction placement, fixed pier shaft reinforcing bar finally along framework of steel reinforcement, pier shaft reinforcing bar accurate positioning,
Locating speed is fast；Set framework of steel reinforcement also to strengthen the overall stiffness of pier shaft steel reinforcement cage, improve pier shaft steel reinforcement cage monolithic stability
Property, it can prevent to deviate and entirety distorts, it is ensured that the effective thickness of concrete cover, is conducive to the quick peace of pier body formwork
Dress.
Further, bridging is set between neighbouring two layers of framework of steel reinforcement, can further lifts pier shaft steel reinforcement cage
Overall stiffness.
The framework of steel reinforcement of the present invention, it is simple in structure, easy to assembly, contribute to quick, the accurate positionin of pier shaft reinforcing bar, improve
The overall stiffness of pier shaft steel reinforcement cage, ensures the overall stability of pier shaft steel reinforcement cage.
Brief description of the drawings
Fig. 1 is the flow chart of the construction method of bridge pier pier shaft reinforcing bar of the present invention.
Fig. 2 is the dimensional structure diagram for completing the pier shaft steel reinforcement cage after constructing.
Fig. 3 is the side structure schematic view for completing the pier shaft steel reinforcement cage after constructing.
Fig. 4 is the structure diagram of framework of steel reinforcement of the present invention.
Each label represents in figure：1st, concrete foundation；2nd, framework of steel reinforcement；21st, semicircle spacer bar；22nd, laterally strengthen
Muscle；23rd, first longitudinal direction reinforcing rib；24th, second longitudinal direction reinforcing rib；25th, radial reinforcing rib；3rd, pier shaft reinforcing bar；4th, bridging.
Embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
As shown in Figure 1, the construction method of the bridge pier pier shaft reinforcing bar of the present embodiment, comprises the following steps,
S1：Set up stent：Fixed platform of the stent as framework of steel reinforcement 2 is set up, 1 structure type of stent is normal for engineering field
Double-row steel pipe stent, the specification of single-layer bracket is 1.0x1.5x1.8m；
S2：Make framework of steel reinforcement 2：Framework of steel reinforcement 2 is made according to the shape and size of pier shaft steel reinforcement cage cross section；
S3：Installing bottom layer framework of steel reinforcement 2：Some control points for the positioning of pier shaft steel reinforcement cage are released in measurement, according to control
Bottom layer of the reinforcing steel skeleton 2, is then fixed on the reinforcing bar of 1 top surface of concrete foundation, the present embodiment by point location bottom layer of the reinforcing steel skeleton 2
In, the quantity at control point is six, be respectively two semicircle spacer bars 21 midpoint and two endpoints, the tool at each control point
Body position is obtained according to construction site technical staff's measurement；
S4：Upper strata framework of steel reinforcement 2 is installed：Multistory reinforced skeleton 2 is fixedly mounted along the short transverse of stent, and ensures multilayer
Framework of steel reinforcement 2 aligns with bottom layer of the reinforcing steel skeleton 2；
S5：Pier shaft reinforcing bar 3 is installed：Pier shaft reinforcing bar 3 is placed along framework of steel reinforcement 2 is circumferential, and by pier shaft reinforcing bar 3 and reinforcing bar
Frame 2 is fixedly connected to form pier shaft steel reinforcement cage.
Complete pier shaft reinforcement cage structure such as Fig. 2 after construction and as shown in figure 3, the construction method pier shaft reinforcing bar 3 positions standard
Really, locating speed is fast；Set framework of steel reinforcement 2 also to strengthen the overall stiffness of pier shaft steel reinforcement cage, improve pier shaft steel reinforcement cage entirety
Stability, can prevent to deviate and entirety distorts, it is ensured that the effective thickness of concrete cover, is conducive to the fast of pier body formwork
Speed installation.
In the present embodiment, step S4 include it is following step by step：
S4.1：Top layer framework of steel reinforcement 2 is installed：Some control points on bottom layer of the reinforcing steel skeleton 2 are led to top using weight line
Layer framework of steel reinforcement 2, realizes the positioning of top layer framework of steel reinforcement 2, then top layer muscle sample rack 2 is fixed on stent；
S4.2：Intermediate layer framework of steel reinforcement 2 is installed：Using connecting rope by bottom layer of the reinforcing steel skeleton 2 and top layer framework of steel reinforcement 2
Each control point connects one to one, and the positioning of intermediate layer framework of steel reinforcement 2 is realized by connecting rope, then by intermediate layer framework of steel reinforcement
2 are fixed on stent, which can quickly and reliably complete the positioning and installation of top bars skeleton 2, it is ensured that top bars
Skeleton 2 aligns with bottom layer of the reinforcing steel skeleton 2, so as to ensure that pier shaft reinforcing bar does not deviate.
In the present embodiment, step S6 is further included after step S5：Bridging 4 is installed between adjacent two layers framework of steel reinforcement 2,
It can further improve the overall stiffness of pier shaft steel reinforcement cage.
As shown in figure 4, the framework of steel reinforcement 2 of the present embodiment includes two semicircle spacer bars 21 and two cross reinforcings
22, two cross reinforcings 22 are arranged in parallel, and two semicircle spacer bars 21 are divided into 22 both ends of cross reinforcing, each semicircle
The both ends of shape spacer bar 21 are welded with a cross reinforcing 22 respectively, the framework of steel reinforcement 2 of kidney ellipsoid are formed, along kidney ellipsoid
Pier shaft reinforcing bar 3 is placed in the inner side of framework of steel reinforcement 2, and for pier shaft reinforcing bar 3 with framework of steel reinforcement 2 using being welded to connect, 2 structure of framework of steel reinforcement is simple
It is single, easy to assembly, contribute to quick, the accurate positionin of pier shaft reinforcing bar 3, improve the overall stiffness of pier shaft steel reinforcement cage, ensure pier
The overall stability of body steel reinforcement cage.
In the present embodiment, framework of steel reinforcement 2 further includes first longitudinal direction reinforcing rib 23 and second longitudinal direction reinforcing rib 24, first longitudinal direction
Reinforcing rib 23 is welded with semicircle 21 both ends of spacer bar, second longitudinal direction reinforcing rib 24 be welded in two cross reinforcings 22 it
Between, it is welded with more radial reinforcing ribs 25 between first longitudinal direction reinforcing rib 23 and semicircle spacer bar 21.
Scissors is welded between the first longitudinal direction reinforcing rib 23 and second longitudinal direction reinforcing rib 24 of upper and lower two layers of framework of steel reinforcement 2
Support 4, improves the overall stiffness of pier shaft steel reinforcement cage, and in the present embodiment, bridging 4 is the support of C25 shear for cutting steel bar.
Although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with ability
The technical staff in domain, in the case where not departing from technical solution of the present invention scope, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every
Without departing from the content of 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, should all fall in the range of technical solution of the present invention protection.
Claims (5)
- A kind of 1. construction method of bridge pier pier shaft reinforcing bar, it is characterised in that：Comprise the following steps,S1：Set up stent：Stent is set up as framework of steel reinforcement（2）Fixed platform；S2：Make framework of steel reinforcement（2）：More reinforcement weldings are fabricated to steel according to the shape and size of pier shaft steel reinforcement cage cross section Tendons skeleton（2）；S3：Installing bottom layer framework of steel reinforcement（2）：Some control points for the positioning of pier shaft steel reinforcement cage are released in measurement, according to control point Position bottom layer of the reinforcing steel skeleton（2）, then by bottom layer of the reinforcing steel skeleton（2）It is fixed on concrete foundation（1）On the reinforcing bar of top surface；S4：Upper strata framework of steel reinforcement is installed（2）：Multistory reinforced skeleton is fixedly mounted along the short transverse of the stent（2）, and ensure Multistory reinforced skeleton（2）With bottom layer of the reinforcing steel skeleton（2）Alignment；S5：Pier shaft reinforcing bar is installed（3）：Along the framework of steel reinforcement（2）It is circumferential to place pier shaft reinforcing bar（3）, and by pier shaft reinforcing bar（3） With framework of steel reinforcement（2）It is fixedly connected to form pier shaft steel reinforcement cage.
- 2. the construction method of bridge pier pier shaft reinforcing bar according to claim 1, it is characterised in that：The step S4 includes following Step by step：S4.1：Top layer framework of steel reinforcement is installed（2）：Using weight line bottom layer of the reinforcing steel skeleton（2）On some control points lead to top Layer framework of steel reinforcement（2）, realize top layer framework of steel reinforcement（2）Positioning, then by top layer framework of steel reinforcement（2）It is fixed on the stent On；S4.2：Intermediate layer framework of steel reinforcement is installed（2）：Using connecting rope by bottom layer of the reinforcing steel skeleton（2）With top layer framework of steel reinforcement（2）On Each control point connect one to one, intermediate layer framework of steel reinforcement is realized by the connecting rope（2）Positioning, then by intermediate layer Framework of steel reinforcement（2）It is fixed on the stent.
- 3. the construction method of bridge pier pier shaft reinforcing bar according to claim 1 or 2, it is characterised in that：Also wrapped after step S5 Include step S6：In adjacent two layers framework of steel reinforcement（2）Between bridging is installed（4）.
- 4. a kind of framework of steel reinforcement of the construction method of bridge pier pier shaft reinforcing bar for any one of claims 1 to 3, it is special Sign is：Including two semicircle spacer bars（21）With two cross reinforcings（22）, two cross reinforcings（22） Parallel arrangement, described two semicircle spacer bars（21）It is divided into cross reinforcing（22）Both ends, each semicircle spacer bar （21）Both ends respectively with a cross reinforcing（22）Welding.
- 5. framework of steel reinforcement according to claim 4, it is characterised in that：The framework of steel reinforcement（2）First longitudinal direction is further included to add Strengthening tendons（23）With second longitudinal direction reinforcing rib（24）, the first longitudinal direction reinforcing rib（23）With the semicircle spacer bar（21）Two End welding, the second longitudinal direction reinforcing rib（24）It is welded in two cross reinforcings（22）Between, the first longitudinal direction reinforcing rib （23）With the semicircle spacer bar（21）Between be welded with more radial reinforcing ribs（25）.
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| 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 |
|---|---|---|---|
| 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 CN105672137A (en) | 2016-06-15 |
| CN105672137B true CN105672137B (en) | 2018-04-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
-
2016
- 2016-03-22 CN CN201610163800.4A patent/CN105672137B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| CN105672137A (en) | 2016-06-15 |
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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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