CN109629434B - High-precision suspension type embedded steel bar positioning frame structure and method for calibrating flatness of connection surface of pier body of hole bridge by using same - Google Patents
High-precision suspension type embedded steel bar positioning frame structure and method for calibrating flatness of connection surface of pier body of hole bridge by using same Download PDFInfo
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- CN109629434B CN109629434B CN201910007499.1A CN201910007499A CN109629434B CN 109629434 B CN109629434 B CN 109629434B CN 201910007499 A CN201910007499 A CN 201910007499A CN 109629434 B CN109629434 B CN 109629434B
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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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Abstract
The invention discloses a high-precision suspension type embedded steel bar positioning frame structure and a method for calibrating the flatness of a connecting surface of a pier body of a hole bridge by using the same, and relates to the field of civil engineering equipment, wherein the high-precision suspension type embedded steel bar positioning frame structure comprises an upper frame, a lower frame, a longitudinal connecting piece and a central support, the upper frame and the lower frame are both rectangular frame structures, the upper frame and the lower frame are connected and fixed through the longitudinal connecting piece to form the outer frame, I-shaped steel beams are welded and fixed on the inner sides of the corners of the outer frame, the central support comprises an octagonal frame, a transverse connecting piece and a forked connecting piece, and a plurality of longitudinal through holes are also arranged on the upper frame, the lower frame and the octagonal frame. The construction quality is ensured, the construction process is simplified, and the height of the positioning frame can be adjusted in time only by adjusting the height of the positioning frame after the levelness is ensured.
Description
Technical Field
The invention relates to the field of civil engineering equipment, in particular to a suspended type embedded steel bar positioning frame structure which is simple in structure, convenient to construct and high in precision.
Background
At present, in the bridge construction process, the bridge pier body partially spanning the non-navigation hole is a prefabricated pier body, the requirements on bearing platform connection surface flatness and embedded pier body steel bar precision are higher when the bridge pier body is installed, the height of the embedded pier body steel bar is determined by adopting a manual measurement mode in the existing construction method, certain measurement errors exist, and the precision cannot be well guaranteed. Some units also adopt special equipment to realize the control of the flatness and the precision, but the structure is too complex and the cost is higher.
Disclosure of Invention
The invention aims to provide a high-precision suspension type embedded steel bar positioning frame structure to overcome the defects in the prior art.
A high-precision suspension type embedded steel bar positioning frame structure comprises an upper frame, a lower frame, a longitudinal connecting piece and a central support, wherein the upper frame and the lower frame are both rectangular frame structures and are connected and fixed through the longitudinal connecting piece to form an outer frame, and I-shaped steel beams are welded and fixed on the inner sides of corners of the outer frame;
the central support comprises an octagonal frame, two transverse connecting pieces and a fork-shaped connecting piece, a plurality of extending pieces are fixedly welded on the outer side of the octagonal frame and are connected with longitudinal connecting pieces in an outer frame through the extending pieces, the octagonal frame is located inside the outer frame, the transverse connecting pieces are fixedly welded on the inner side of the octagonal frame and are arranged in parallel, and the fork-shaped connecting piece is also fixedly welded on the inner side of the octagonal frame and is located between the two transverse connecting pieces;
and a plurality of longitudinal through holes are also formed in the upper frame, the lower frame and the octagonal frame.
Preferably, the upper frame, the lower frame and the central support are the same in structure composition and respectively comprise a pair of channel steel and a pair of pressing plates, the channel steel is symmetrically arranged, notches of the channel steel face the outside, the upper end and the lower end of the channel steel are fixedly connected through the pressing plates to form an I shape, and the pressing plates are provided with the longitudinal through holes.
Preferably, the longitudinal connecting member, the extension member and the transverse connecting member are all made of I-steel.
Preferably, said fork connection is in particular "X" shaped.
Preferably, the two sides of the outer frame are also fixedly welded with transverse positioning plates, and the transverse positioning plates adopt I-beams and are provided with a plurality of mounting holes.
Preferably, a level gauge is further installed on the side surface of the upper frame and the lower frame.
The utility model provides a method for utilize high accuracy suspension type embedded steel bar locating rack structure to carry out hole bridge pier shaft handing-over face roughness calibration, specifically as follows: the method comprises the steps of firstly accurately lofting the position of a positioning frame according to the longitudinal and transverse axes and the foot points of a pier body discharged through measurement, then adjusting the positioning frame according to the elevation, ensuring the level and fixing, determining the plane position of the embedded pier bottom steel bars through vertical through holes which vertically correspond to the positioning frame, and adjusting the elevation of the embedded steel bars through sleeves at the top elevation of the embedded steel bars.
The invention has the advantages that:
(1) by manufacturing the modular positioning frame as a measure for controlling the flatness of the connecting surface of the pier body of the bearing platform and the precision of the embedded steel bar of the pier body, the flatness of the connecting surface of the pier body installation and the precision of height parameters are improved, the construction quality is ensured, the construction process is simplified, and after the levelness is ensured, the height of the positioning frame can be adjusted in time only by adjusting the height of the positioning frame;
(2) the upper frame, the lower frame and the central support which are designed in the scheme have the shape of an I, and can be provided with a certain number of longitudinal through holes while ensuring the strength and rigidity of the three structures, so that the structure is simplified;
(3) the level gauge can be used for auxiliary positioning, and horizontal accuracy in installation is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of the center support of the present invention.
Fig. 3 is a sectional view of an upper frame in the present invention.
Fig. 4 is a schematic structural view of a center stand in example 2 of the present invention.
Fig. 5 is a partial schematic view of the portion of the level of fig. 4.
The steel beam positioning device comprises an outer frame 1, an upper frame 10, a lower frame 11, a longitudinal connecting piece 12, a central support 2, an octagonal frame 20, a transverse connecting piece 21, a forked connecting piece 22, an extending piece 23, a longitudinal through hole 3, channel steel 4, a pressing plate 5, a transverse positioning plate 6, a mounting hole 7, a level 8 and a steel beam 9.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
As shown in fig. 1 to 3, a high-precision suspension type embedded steel bar positioning frame structure comprises an upper frame 10, a lower frame 11, a longitudinal connecting piece 12 and a central support 2, wherein the upper frame 10 and the lower frame 11 are both rectangular frame structures and are connected and fixed through the longitudinal connecting piece 12 to form an outer frame 1, and an i-shaped steel beam 9 is welded and fixed on the inner side of a corner of the outer frame 1;
the central support 2 comprises an octagonal frame 20, transverse connecting pieces 21 and a forked connecting piece 22, a plurality of extending pieces 23 are fixedly welded on the outer side of the octagonal frame 20 and are connected with the longitudinal connecting pieces 12 in the outer frame 1 through the extending pieces 23, the octagonal frame 20 is located inside the outer frame 1, the number of the transverse connecting pieces 21 is two, the transverse connecting pieces 21 are fixedly welded on the inner side of the octagonal frame 20 and are arranged in parallel, and the forked connecting piece 22 is also fixedly welded on the inner side of the octagonal frame 20 and is located between the two transverse connecting pieces 21;
the upper frame 10, the lower frame 11 and the octagonal frame 20 are further provided with a plurality of longitudinal through holes 3.
In this embodiment, the upper frame 10, the lower frame 11 and the central bracket 2 have the same structural composition, and each of the structural composition includes a pair of channel steel 4 and a pair of pressing plates 5, the channel steel 4 is symmetrically arranged, the notches of the channel steel 4 face outward, the upper end and the lower end of the channel steel 4 are fixedly connected through the pressing plates 5 to form an i-shape, and the pressing plates 5 are provided with the longitudinal through holes 3.
In the present embodiment, the forked connection 22 is embodied in the shape of an "X".
In this embodiment, the two sides of the outer frame 1 are further fixedly welded with transverse positioning plates 6, and the transverse positioning plates 6 are i-beams and are provided with a plurality of mounting holes 7. The positioning frame in the scheme is installed on a corresponding device by means of the transverse positioning plate 6 so as to realize the adjustment of the height up and down.
Example 2
As shown in fig. 4 and 5, a high-precision suspension type embedded steel bar positioning frame structure comprises an upper frame 10, a lower frame 11, a longitudinal connecting piece 12 and a central support 2, wherein the upper frame 10 and the lower frame 11 are both rectangular frame structures and are connected and fixed through the longitudinal connecting piece 12 to form an outer frame 1, and an i-shaped steel beam 9 is welded and fixed on the inner side of a corner of the outer frame 1;
the central support 2 comprises an octagonal frame 20, transverse connecting pieces 21 and a forked connecting piece 22, a plurality of extending pieces 23 are fixedly welded on the outer side of the octagonal frame 20 and are connected with the longitudinal connecting pieces 12 in the outer frame 1 through the extending pieces 23, the octagonal frame 20 is located inside the outer frame 1, the number of the transverse connecting pieces 21 is two, the transverse connecting pieces 21 are fixedly welded on the inner side of the octagonal frame 20 and are arranged in parallel, and the forked connecting piece 22 is also fixedly welded on the inner side of the octagonal frame 20 and is located between the two transverse connecting pieces 21;
the upper frame 10, the lower frame 11 and the octagonal frame 20 are further provided with a plurality of longitudinal through holes 3.
In this embodiment, the upper frame 10, the lower frame 11 and the central bracket 2 have the same structural composition, and each of the structural composition includes a pair of channel steel 4 and a pair of pressing plates 5, the channel steel 4 is symmetrically arranged, the notches of the channel steel 4 face outward, the upper end and the lower end of the channel steel 4 are fixedly connected through the pressing plates 5 to form an i-shape, and the pressing plates 5 are provided with the longitudinal through holes 3.
In this embodiment, the longitudinal connecting member 12, the extending member 23 and the transverse connecting member 21 are all made of i-steel, so that the structural strength is high, the material source is wide, and the procurement cost is low.
In the present embodiment, the forked connection 22 is embodied in the shape of an "X".
In this embodiment, the two sides of the outer frame 1 are further fixedly welded with transverse positioning plates 6, and the transverse positioning plates 6 are i-beams and are provided with a plurality of mounting holes 7. The positioning frame in the scheme is installed on a corresponding device by means of the transverse positioning plate 6 so as to realize the adjustment of the height up and down.
In this embodiment, the side surfaces of the upper frame 10 and the lower frame 11 are further provided with a level 8 for assisting positioning and ensuring horizontal accuracy during installation.
When the device is used, the position of the positioning frame is accurately lofted according to the vertical and horizontal axes and the foot points of the pier body which are measured and released, then the positioning frame is adjusted according to the elevation to ensure the level and the fixation, the plane position of the embedded pier bottom steel bar is determined through the vertical through holes 3 which are vertically corresponding to each other on the positioning frame, and the elevation of the embedded steel bar top is adjusted through the sleeve at the embedded steel bar top elevation.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (7)
1. A high-precision suspension type embedded steel bar positioning frame structure is characterized by comprising an upper frame (10), a lower frame (11), longitudinal connecting pieces (12) and a central support (2), wherein the upper frame (10) and the lower frame (11) are both rectangular frame structures and are connected and fixed through the longitudinal connecting pieces (12) to form an outer frame (1), and I-shaped steel beams (9) are welded and fixed on the inner sides of corners of the outer frame (1);
the central support (2) comprises an octagonal frame (20), transverse connecting pieces (21) and a fork connecting piece (22), a plurality of extending pieces (23) are fixedly welded on the outer side of the octagonal frame (20) and are connected with longitudinal connecting pieces (12) in the outer frame (1) through the extending pieces (23), the octagonal frame (20) is located inside the outer frame (1), the number of the transverse connecting pieces (21) is two, the transverse connecting pieces (21) are fixedly welded on the inner side of the octagonal frame (20) and are arranged in parallel, and the fork connecting piece (22) is also fixedly welded on the inner side of the octagonal frame (20) and is located between the two transverse connecting pieces (21);
the upper frame (10), the lower frame (11) and the octagonal frame (20) are also provided with a plurality of longitudinal through holes (3).
2. The high-precision suspension type embedded steel bar positioning frame structure of claim 1, which is characterized in that: the structure composition of the upper frame (10), the lower frame (11) and the central support (2) is the same, the upper frame, the lower frame and the central support all comprise a pair of channel steel (4) and a pair of pressing plates (5), the channel steel (4) are symmetrically arranged, notches face to the outside, the upper end and the lower end of the channel steel (4) are fixedly connected through the pressing plates (5) to form an I shape, and the pressing plates (5) are provided with the longitudinal through holes (3).
3. The high-precision suspension type embedded steel bar positioning frame structure of claim 2, wherein: the longitudinal connecting piece (12), the extension piece (23) and the transverse connecting piece (21) are all made of I-shaped steel.
4. The high-precision suspension type embedded steel bar positioning frame structure of claim 2, wherein: the fork connection (22) is in particular "X" -shaped.
5. The high-precision suspension type embedded steel bar positioning frame structure of claim 2, wherein: and the two sides of the outer frame (1) are also fixedly welded with transverse positioning plates (6), and the transverse positioning plates (6) adopt I-shaped beams and are provided with a plurality of mounting holes (7).
6. The high-precision suspension type embedded steel bar positioning frame structure of claim 5, wherein: the side surfaces of the upper frame (10) and the lower frame (11) are also provided with gradienters (8).
7. The method for calibrating the flatness of the connection surface of the pier body of the hole bridge by using the high-precision suspension type embedded steel bar positioning frame structure of claim 6 is characterized by comprising the following steps of: the method comprises the steps of firstly accurately lofting the position of a positioning frame according to the longitudinal and transverse axes and the foot points of a pier body discharged through measurement, then adjusting the positioning frame according to the elevation, ensuring the level and fixing, determining the plane position of the embedded pier bottom steel bars through vertical through holes (3) which correspond to each other up and down on the positioning frame, and adjusting the elevation of the embedded steel bars through sleeves at the top elevation of the embedded steel bars.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007499.1A CN109629434B (en) | 2019-01-04 | 2019-01-04 | High-precision suspension type embedded steel bar positioning frame structure and method for calibrating flatness of connection surface of pier body of hole bridge by using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007499.1A CN109629434B (en) | 2019-01-04 | 2019-01-04 | High-precision suspension type embedded steel bar positioning frame structure and method for calibrating flatness of connection surface of pier body of hole bridge by using same |
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| Publication Number | Publication Date |
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| CN109629434A CN109629434A (en) | 2019-04-16 |
| CN109629434B true CN109629434B (en) | 2020-08-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4372642B2 (en) * | 2004-08-19 | 2009-11-25 | 三井住友建設株式会社 | Construction method of columnar structures |
| CN102493471B (en) * | 2011-12-01 | 2014-03-26 | 中建八局大连建设工程有限公司 | Suspending installation construction process method of structural foot margin anchor bolt |
| CN202925476U (en) * | 2012-12-12 | 2013-05-08 | 中铁上海工程局有限公司 | Bridge floor pre-embedded sleeve positioner |
| CN204000641U (en) * | 2014-08-21 | 2014-12-10 | 中交一航局第五工程有限公司 | A kind of large-scale pier stud concrete vertical reinforcement locating rack |
| CN204097863U (en) * | 2014-09-05 | 2015-01-14 | 中铁四局集团第五工程有限公司 | A kind of universal pier shaft embedded bar positioner |
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