CN212956162U - Cast-in-place construction fabricated support of wide width case roof beam of striding greatly - Google Patents
Cast-in-place construction fabricated support of wide width case roof beam of striding greatly Download PDFInfo
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- CN212956162U CN212956162U CN202021552227.4U CN202021552227U CN212956162U CN 212956162 U CN212956162 U CN 212956162U CN 202021552227 U CN202021552227 U CN 202021552227U CN 212956162 U CN212956162 U CN 212956162U
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Abstract
The utility model discloses a large-span wide-width box girder cast-in-place construction fabricated bracket, which comprises a quadrilateral component, a flange, a pull lug and a hoop, wherein the quadrilateral component comprises two telescopic steel upright posts and two telescopic parallel links, the two ends of the two telescopic parallel links are respectively connected with a telescopic steel upright post through vertical flanges, the two telescopic steel upright posts and the two telescopic parallel links form a quadrilateral component, a first inclined strut is arranged in the quadrilateral component, one end of the first inclined strut is connected with the pull lug of the telescopic steel upright post, the other end of the first inclined strut is connected with the hoop of the telescopic parallel links, the first inclined strut is used for adjusting the height and the width of the fabricated bracket and supporting the quadrilateral component, the quadrilateral component is used for supporting the box girder, the height and the width of the fabricated bracket can be adjusted by adjusting the inclination angle of the first inclined strut, the width of the fabricated bracket can be adjusted according to the width of the box girder which needs to, according to the height of the assembly type support of the height adjustment of the pier, the height and the width of the assembly type support can be quickly adjusted, and the construction efficiency can be effectively improved.
Description
Technical Field
The utility model relates to a bridge construction technical field, concretely relates to cast-in-place construction assembled support of wide width box girder strides greatly.
Background
At present, the cast-in-place construction of the bridge box girder usually adopts a full framing construction form or a movable formwork form. The requirement of full hall support construction to the construction site is than higher, sets up and demolishs the in-process at full hall support in addition, need carry out a large amount of loading and unloading, weld, cut work, has increased the engineering input, and when the movable mould frame construction becomes width of cloth case roof beam, the accent mould work is complicated, has reduceed the efficiency of construction.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims to provide a cast-in-place construction assembled support of wide case roof beam strides greatly, it aims at solving among the prior art that the supporting structure equipment is complicated, can not dismantle fast and the support can not quick adjustment support height and width to reduce the technical problem of efficiency of construction.
The utility model discloses a following technical scheme realizes:
a large-span wide box girder cast-in-place construction fabricated bracket comprises a quadrilateral component, a flange, a pull lug and a hoop;
the quadrilateral component comprises two telescopic steel stand columns and two telescopic parallel links, two ends of the two telescopic parallel links are respectively connected with a telescopic steel stand column through vertical flanges, and the two telescopic steel stand columns and the two telescopic parallel links form a quadrilateral component;
a first inclined strut is arranged in the quadrilateral component, one end of the first inclined strut is connected with the telescopic steel upright post pull lug, the other end of the first inclined strut is connected with the telescopic flat connection hoop, and the first inclined strut is used for adjusting the height and the width of the assembled support and supporting the quadrilateral component; the quadrilateral members are used for supporting the box girder.
This kind of detachable mode of linking of flange, lug and staple bolt is adopted to this scheme, can become each independent component with this assembled support split, and the equipment of its each component is simple, stable good, the construction is simple and convenient swift to accelerated the construction progress of case roof beam, shortened the time limit for a project, reduced engineering construction cost and reduce with regard to the potential safety hazard.
This scheme still adopts to set up flexible steel stand and flexible parallel connection, can accomplish the regulation of the height and the width of this assembled support through the inclination of adjusting first bracing, can adjust the width of this assembled support according to the case roof beam width that needs at present supported, according to the height of this assembled support of altitude mixture control of pier, can the height and the width of quick adjustment assembled support, can effectual improvement efficiency of construction.
Further, the assembled bracket further comprises a second inclined strut and a support rod, wherein the second inclined strut and the support rod are respectively arranged on two sides of the quadrilateral component;
one end of the second inclined support is movably connected with one end of the supporting rod, the other end of the second inclined support is fixedly connected with the bottom of the quadrilateral component, and the other end of the supporting rod is fixedly connected with the top of the quadrilateral component;
the second inclined strut, the support rod and the telescopic steel upright post form a triangular member, and the triangular member is used for supporting the box girder.
According to the scheme, the triangular components are arranged on the two sides of the quadrilateral component, so that the load borne by the quadrilateral component can be decomposed, the balanced stress of the assembled support is guaranteed, and the stability of the support can be effectively guaranteed.
Further, the quadrangular member includes at least one.
This scheme can increase the stability of support through setting up a plurality of quadrangle members.
Furthermore, the assembled support also comprises a column base steel plate, an unloading sandbox, a main cross beam, a Bailey beam and a transverse distribution beam;
the column base steel plate is arranged at the bottom of the telescopic steel upright column and is used for connecting the telescopic steel upright column with a support foundation;
the unloading sandbox is arranged at the top of the telescopic steel upright post and is used for unloading the load of the assembled bracket;
the upper part of the unloading sandbox is sequentially provided with a main cross beam, a Bailey beam and a transverse distribution beam.
This scheme adopts and is connected through column foot steel sheet and support foundation, can make this assembled support do not rely on the bearing capacity of ground conduct this assembled support, thereby also need not trompil influence pier shaft structure and outward appearance on the pier, the outward appearance integrality of the pier of assurance case roof beam that can be better.
Furthermore, a pile cap is further arranged at the connecting end of the second inclined support and the support rod.
Furthermore, the telescopic steel columns adopt phi 800 multiplied by 14mm steel pipes and phi 800 multiplied by 10mm steel pipes, the telescopic steel columns at the pier bodies of the box girders adopt phi 800 multiplied by 10mm steel pipes, and the telescopic steel columns in the span of the box girders adopt phi 800 multiplied by 14mm steel pipes.
Furthermore, the telescopic parallel connection adopts a phi 400 multiplied by 8mm steel pipe.
Furthermore, the first inclined strut is a steel pipe with phi 400 multiplied by 8 mm.
Furthermore, the second diagonal brace adopts a phi 400 multiplied by 8mm steel pipe.
Further, the bottom of second bracing is through bracket and flexible steel stand fixed connection.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. this kind of detachable mode of linking of flange, lug and staple bolt is adopted to this scheme, can become each independent component with this assembled support split, and the equipment of its each component is simple, stable good, the construction is simple and convenient swift to accelerated the construction progress of case roof beam, shortened the time limit for a project, reduced engineering construction cost and reduce with regard to the potential safety hazard.
2. This scheme still adopts to set up flexible steel stand and flexible parallel connection, can accomplish the regulation of the height and the width of this assembled support through the inclination of adjusting first bracing, can adjust the width of this assembled support according to the case roof beam width that needs at present supported, according to the height of this assembled support of altitude mixture control of pier, can the height and the width of quick adjustment assembled support, can effectual improvement efficiency of construction.
3. This scheme adopts and is connected through column foot steel sheet and support foundation, can make this assembled support do not rely on the bearing capacity of ground conduct this assembled support, thereby also need not trompil influence pier shaft structure and outward appearance on the pier, the outward appearance integrality of the pier of assurance case roof beam that can be better.
4. And the construction operation standardization level of this scheme is high, can improve machining precision and quality through batch production processing, realizes standardizing installation and demolishs for support material reuse rate is high.
5. According to the scheme, the triangular components are arranged on the two sides of the quadrilateral component, so that the load borne by the quadrilateral component can be decomposed, the balanced stress of the assembled support is guaranteed, and the stability of the support can be effectively guaranteed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a front view of the present invention.
Fig. 2 is a schematic structural view of the quadrilateral member of the present invention.
Reference numbers and corresponding part names:
1-a quadrilateral member; 11-telescopic steel upright posts; 12-a first diagonal brace; 13-telescopic parallel connection; 2-a triangular member; 21-a support bar; 22-a second diagonal brace; 3-a box girder; 4-column base steel plate; 5-unloading the sandbox; 6-main beam; 7-bailey beam; 8-transverse distribution beams; 9-pile caps; 10-support foundation.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
[ examples ] A method for producing a compound
A large-span wide box girder cast-in-place construction fabricated bracket comprises a quadrilateral component 1, a flange, a pull lug and a hoop;
the quadrilateral component 1 comprises two telescopic steel upright posts 11 and two telescopic parallel links 13, two ends of the two telescopic parallel links 13 are respectively connected with one telescopic steel upright post 11 through vertical flanges, and the two telescopic steel upright posts 11 and the two telescopic parallel links 13 form the quadrilateral component 1;
a first inclined strut 12 is arranged in the quadrilateral component 1, one end of the first inclined strut 12 is connected with a pull lug of a telescopic steel upright post 11, the other end of the first inclined strut 12 is connected with a hoop of a telescopic flat joint 13, and the first inclined strut 12 is used for adjusting the height and the width of the assembled bracket and supporting the quadrilateral component 1; the quadrilateral members 1 are used to support box girders 3.
This kind of detachable mode of linking of flange, lug and staple bolt is adopted to this scheme, can become each independent component with this assembled support split, and the equipment of its each component is simple, stable good, the construction is simple and convenient swift to accelerated the construction progress of case roof beam, shortened the time limit for a project, reduced engineering construction cost and reduce with regard to the potential safety hazard.
This scheme still adopts to set up flexible steel stand and flexible parallel connection, can accomplish the regulation of the height and the width of this assembled support through the inclination of adjusting first bracing, can adjust the width of this assembled support according to the case roof beam width that needs at present supported, according to the height of this assembled support of altitude mixture control of pier, can the height and the width of quick adjustment assembled support, can effectual improvement efficiency of construction.
In this embodiment, every stride arranges 6 bent telescopic steel stand 11, and the bent interval 8.7m, 9m, 12m are unequal, all adopt quadrangle component 1 to connect between every stride, and the cross bridge is to arranging every 4 telescopic steel stand 11 of establishing, and the bent width is along with the structural change of case roof beam 3, and all telescopic steel stand 11 all are according to four-way flange design processing.
Further, the fabricated bracket further comprises a second inclined strut 22 and a support rod 21, wherein the second inclined strut 22 and the support rod 21 are respectively arranged at two sides of the quadrilateral component 1;
one end of the second inclined strut 22 is movably connected with one end of the support rod 21, the other end of the second inclined strut 22 is fixedly connected with the bottom of the quadrilateral component 1, and the other end of the support rod 21 is fixedly connected with the top of the quadrilateral component 1;
the second inclined strut 22, the support rod 21 and the telescopic steel upright 11 form a triangular member 2, and the triangular member 2 is used for supporting the box girder 3.
According to the scheme, the triangular components are arranged on the two sides of the quadrilateral component, so that the load borne by the quadrilateral component can be decomposed, the balanced stress of the assembled support is guaranteed, and the stability of the support can be effectively guaranteed.
Further, the quadrangular member 2 includes at least one.
This scheme can increase the stability of support through setting up a plurality of quadrangle members.
Furthermore, the assembled support also comprises a column base steel plate 4, an unloading sandbox 5, a main cross beam 6, a Bailey beam 7 and a transverse distribution beam 8;
the column base steel plate 4 is arranged at the bottom of the telescopic steel upright column 11 and is used for connecting the telescopic steel upright column 11 with the support foundation 10;
the unloading sandbox 5 is arranged at the top of the telescopic steel upright post 11 and is used for unloading the load of the assembled bracket;
the upper part of the unloading sandbox 5 is sequentially provided with a main beam 6, a Bailey beam 7 and a transverse distribution beam 8.
This scheme adopts and is connected through column foot steel sheet and support foundation, can make this assembled support do not rely on the bearing capacity of ground conduct this assembled support, thereby also need not trompil influence pier shaft structure and outward appearance on the pier, the outward appearance integrality of the pier of assurance case roof beam that can be better.
In this embodiment, the support basis can adopt two kinds of basic modes, and the first kind directly stands on cushion cap top and through embedded bolt with the column base and the cushion cap fixed connection of flexible steel stand, uses the cushion cap as the bearing basis promptly.
The second type is a foundation of 'rammed and expanded pile + small bearing platform', and the telescopic steel upright posts are erected on the small bearing platform on the rammed and expanded pile and connected with the embedded parts through bolts.
Further, a pile cap 9 is arranged at the connecting end of the second inclined strut 22 and the supporting rod 21.
Further, the telescopic steel columns 11 adopt phi 800 × 14mm steel pipes and phi 800 × 10mm steel pipes, the telescopic steel columns 11 at the pier bodies of the box girders 3 adopt phi 800 × 10mm steel pipes, and the telescopic steel columns 11 in the span of the box girders 3 adopt phi 800 × 14mm steel pipes.
Furthermore, the expansion parallel 13 is a phi 400X 8mm steel pipe.
Further, the first inclined strut 12 is a steel pipe with phi 400 × 8 mm.
Further, the second diagonal brace 22 is a steel pipe with phi 400 multiplied by 8 mm.
Further, the bottom of the second inclined strut 22 is fixedly connected with the telescopic steel upright 11 through a bracket.
The utility model discloses a work progress does: before the construction of the assembled support, a column base steel plate is installed on a small bearing platform or a main body bearing platform, the column base steel plate is made of an annular steel plate with t being 30mm, the column base steel plate is connected with the bearing platform or the small bearing platform through embedded bolts, and telescopic steel stand columns supported at the tops of the bearing platform and the small bearing platform are connected with a support foundation through the column base steel plate.
The telescopic parallel connection and the first inclined strut are installed when the telescopic steel stand columns are installed, a plurality of quadrilateral components can be arranged in the horizontal direction according to the specific size of the current box girder, a plurality of quadrilateral components can also be arranged in the vertical direction, and after the plurality of quadrilateral components are arranged, triangular components are arranged on two sides of an integral support formed by the plurality of quadrilateral components, so that the erection and installation of the lower row frame of the assembled support are completed.
After the bent frame at the lower part of the support is built and installed, column cap welding reinforcement and unloading sandbox installation are carried out, after the unloading sandbox installation is finished, 2HN 700X 300 main cross beams, Bailey beams and transverse distribution beams are sequentially installed, after the main cross beams are processed according to design specifications in a processing field, automobiles are transported to the field for installation. The Bailey frames are divided into standard sections and non-standard sections, sections with certain lengths are pre-spliced in a back yard according to the hoisting capacity of the crane, the sections are transported to a beam area on site by an automobile for integral hoisting, and after the integral construction is completed, the construction of the assembly type support is completed.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A large-span wide box girder cast-in-place construction fabricated bracket is characterized by comprising a quadrilateral component (1), a flange, a pull lug and a hoop;
the quadrilateral component (1) comprises two telescopic steel upright columns (11) and two telescopic parallel links (13), two ends of the two telescopic parallel links (13) are respectively connected with one telescopic steel upright column (11) through vertical flanges, and the two telescopic steel upright columns (11) and the two telescopic parallel links (13) form the quadrilateral component (1);
a first inclined support (12) is arranged in the quadrilateral component (1), one end of the first inclined support (12) is connected with a pull lug of the telescopic steel upright post (11), the other end of the first inclined support is connected with a hoop of the telescopic parallel connection (13), and the first inclined support (12) is used for adjusting the height and the width of the assembled support and supporting the quadrilateral component (1); the quadrilateral member (1) is used for supporting a box girder (3).
2. The fabricated bracket for cast-in-place construction of the large-span wide box girder according to claim 1, characterized in that the fabricated bracket further comprises a second inclined strut (22) and a support rod (21), wherein the second inclined strut (22) and the support rod (21) are respectively arranged at two sides of the quadrilateral member (1);
one end of the second inclined support (22) is movably connected with one end of the support rod (21), the other end of the second inclined support (22) is fixedly connected with the bottom of the quadrilateral component (1), and the other end of the support rod (21) is fixedly connected with the top of the quadrilateral component (1);
the second inclined strut (22), the support rod (21) and the telescopic steel upright post (11) form a triangular component (2), and the triangular component (2) is used for supporting the box girder (3).
3. The fabricated bracket for cast-in-place construction of the large-span wide box girder according to claim 1, wherein the quadrangular members (1) comprise at least one.
4. The fabricated bracket for the cast-in-place construction of the large-span wide box girder according to claim 1, characterized in that the fabricated bracket further comprises a column base steel plate (4), an unloading sandbox (5), a main cross beam (6), a Bailey beam (7) and a transverse distribution beam (8);
the column base steel plate (4) is arranged at the bottom of the telescopic steel upright column (11) and is used for connecting the telescopic steel upright column (11) with a support foundation (10);
the unloading sandbox (5) is arranged at the top of the telescopic steel upright post (11) and is used for unloading the load of the assembled support;
the upper part of the unloading sandbox (5) is sequentially provided with a main cross beam (6), a Bailey beam (7) and a transverse distribution beam (8).
5. The fabricated scaffold for cast-in-place construction of the large-span wide box girder according to claim 2, wherein a pile cap (9) is further provided on the connection end of the second diagonal brace (22) and the support rod (21).
6. The fabricated bracket for the cast-in-place construction of the large-span wide box girder according to claim 1, wherein the telescopic steel columns (11) adopt phi 800 x 14mm steel pipes and phi 800 x 10mm steel pipes, the phi 800 x 10mm steel pipes are adopted for the telescopic steel columns (11) at the pier bodies of the box girder (3), and the phi 800 x 14mm steel pipes are adopted for the telescopic steel columns (11) in the span of the box girder (3).
7. The fabricated support for the cast-in-place construction of the large-span wide box girder according to claim 1, wherein the telescopic parallel connection (13) is a phi 400 x 8mm steel pipe.
8. The fabricated bracket for cast-in-place construction of the large-span wide box girder according to claim 1, wherein the first diagonal brace (12) is a phi 400 x 8mm steel pipe.
9. The fabricated bracket for cast-in-place construction of the large-span wide box girder according to claim 2, wherein the second diagonal brace (22) is a phi 400 x 8mm steel pipe.
10. The fabricated bracket for cast-in-place construction of the large-span wide box girder as recited in claim 2, wherein the bottom of the second diagonal brace (22) is fixedly connected with the telescopic steel upright post (11) through a bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021552227.4U CN212956162U (en) | 2020-07-30 | 2020-07-30 | Cast-in-place construction fabricated support of wide width case roof beam of striding greatly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021552227.4U CN212956162U (en) | 2020-07-30 | 2020-07-30 | Cast-in-place construction fabricated support of wide width case roof beam of striding greatly |
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| CN212956162U true CN212956162U (en) | 2021-04-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235427A (en) * | 2021-05-28 | 2021-08-10 | 中铁二十局集团第三工程有限公司 | Support structure and construction method thereof |
| CN114875789A (en) * | 2022-04-29 | 2022-08-09 | 中交一公局集团有限公司 | Adjustable assembled pipe support |
-
2020
- 2020-07-30 CN CN202021552227.4U patent/CN212956162U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235427A (en) * | 2021-05-28 | 2021-08-10 | 中铁二十局集团第三工程有限公司 | Support structure and construction method thereof |
| CN114875789A (en) * | 2022-04-29 | 2022-08-09 | 中交一公局集团有限公司 | Adjustable assembled pipe support |
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