CN212919870U - Rack for binding prefabricated box girder bottom plate web steel reinforcement frameworks - Google Patents
Rack for binding prefabricated box girder bottom plate web steel reinforcement frameworks Download PDFInfo
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- CN212919870U CN212919870U CN202021405706.3U CN202021405706U CN212919870U CN 212919870 U CN212919870 U CN 212919870U CN 202021405706 U CN202021405706 U CN 202021405706U CN 212919870 U CN212919870 U CN 212919870U
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Abstract
一种用于绑扎预制箱梁底板腹板钢筋骨架的台架，其包括若干个支架单元、两个纵梁、至少两个相互平行的第一钢筋支撑件、两个第二钢筋支撑件和若干个第三钢筋支撑件。每个支架单元呈直角U型结构，若干个支架单元并列布置且它们的投影重合，两个纵梁连接若干个支架单元的顶部使得形成伸长的直角U型结构。若干个支架单元的底部通过第一钢筋支撑件和第二钢筋支撑件连接而构成底板钢筋支撑部，每个第一钢筋支撑件上设置有相互间隔的多个钢筋定位槽，所有钢筋定位槽在横向和纵向上对齐。第三钢筋支撑件呈梳状结构，每个第三钢筋支撑件分别以能拆卸的方式设置在相应支架单元的一侧，若干个支架单元的侧部和若干个第三钢筋支撑件一起构成腹板钢筋支撑部。
A bench for tying prefabricated box girder bottom web steel skeleton, which includes several bracket units, two longitudinal beams, at least two mutually parallel first steel support members, two second steel support members and several A third rebar support. Each bracket unit has a right-angle U-shaped structure, several bracket units are arranged side by side and their projections are coincident, and two longitudinal beams connect the tops of the several bracket units to form an elongated right-angle U-shaped structure. The bottoms of several bracket units are connected by a first steel support member and a second steel support member to form a base plate steel support portion, and each first steel support member is provided with a plurality of steel reinforcement positioning grooves spaced from each other. Align horizontally and vertically. The third reinforcing bar supports have a comb-like structure, and each third reinforcing bar support is detachably arranged on one side of the corresponding bracket unit, and the sides of several bracket units and several third reinforcing bar supports together form the abdomen Plate steel support.
Description
Technical Field
The application belongs to the technical field of bottom plate web reinforcement, concretely relates to rack for binding prefabricated box girder bottom plate web steel reinforcement frameworks.
Background
In the construction process of basic building facilities such as highway bridges and the like, cement reinforcing bars are commonly used and are also an extremely important method for ensuring the strength of a concrete structure, in a bridge structure, because the load to be borne by a bridge body is large, a large number of reinforcing bars need to be arranged in a bearing structure to ensure the structural strength of reinforced concrete, the large number of reinforcing bars need to obtain a reasonable reinforcing bar distribution rule after professional calculation and analysis, and a reinforcing bar framework is formed by binding.
Generally, the ligature of bottom plate web reinforcing bar is directly gone on pier base, carries out concrete placement afterwards, but, because of the span is great between the pier, it is extremely inconvenient to operate, and in operation process, because below bearing structure is less, and high altitude construction's reason causes the reinforcing bar interval inhomogeneous easily, and the location is inaccurate, the phenomenon such as warp more easily after the ligature, these all greatly drag the progress of construction slowly.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, this application provides a rack for ligature precast box girder bottom plate web steel reinforcement skeleton, and it includes: the steel bar support comprises a plurality of support units, two longitudinal beams, at least two first steel bar support members which are parallel to each other, two second steel bar support members and a plurality of third steel bar support members. Each support unit is of a right-angle U-shaped structure, a plurality of support units are arranged in parallel, the projections of the support units are overlapped, and the two longitudinal beams are connected with the tops of the support units to form an elongated right-angle U-shaped structure. The bottom of a plurality of the support units is connected through the first steel bar supporting pieces and the second steel bar supporting pieces to form a bottom plate steel bar supporting part, a plurality of steel bar positioning grooves distributed according to a preset interval are formed in each first steel bar supporting piece, and all the steel bar positioning grooves are aligned in the transverse direction and the longitudinal direction. The third steel bar support is of a comb-shaped structure, and each third steel bar support is arranged on one side of the corresponding support unit in a detachable mode and is provided with a plurality of web steel bar supporting parts.
Preferably, each of the rack units includes a first upright, a second upright, a connecting rod, a first diagonal rod, and a second diagonal rod.
Preferably, the first upright and the second upright are parallel to each other, and the connecting rod is located at the bottom of the bracket unit and connects the lower ends of the first upright and the second upright.
Preferably, one end of the first diagonal rod is connected to the first upright, the other end is connected to the connecting rod, the first diagonal rod is inclined with respect to the first upright, one end of the second diagonal rod is connected to the second upright, the other end is connected to the connecting rod, and the second diagonal rod is inclined with respect to the second upright, the first diagonal rod and the second diagonal rod are symmetrical to each other.
Preferably, two of the longitudinal beams are respectively connected with the upper end parts of all the first vertical columns or the upper end parts of all the second vertical columns.
Preferably, each of the first reinforcing bar supporting members is vertically erected on the connecting bar, respectively.
Preferably, the two second steel bar supporting members are respectively erected on the connecting rod vertically, one of the second steel bar supporting members is connected with the lower end of each of the first diagonal members, and the other of the second steel bar supporting members is connected with the lower end of each of the second diagonal members.
Preferably, each of the third reinforcing bar supporting members in the comb structure includes a holding portion and a plurality of parallel reinforcing bar supporting rods, and the holding portion is perpendicular to the plurality of reinforcing bar supporting rods and connects an end portion of the plurality of reinforcing bar supporting rods.
Preferably, each third steel bar support piece further comprises a limiting reinforcing rib, the limiting reinforcing rib is vertically connected with the steel bar support rods, and the limiting reinforcing rib is parallel to the handheld portion.
Preferably, a plurality of the reinforcing bar support rods on each of the third reinforcing bar support members are distributed at a predetermined interval, and a length from a limiting reinforcing bar to an end portion far away from the hand-held portion on each of the reinforcing bar support rods is equal to or greater than a distance between the first upright and the second upright on the bracket unit.
Preferably, each of the bracket units is provided with a plurality of reinforcing bar supporting rod positioning portions at the same side of the first upright, the second upright, the first diagonal rod and the second diagonal rod, the number and the interval of the reinforcing bar supporting rod positioning portions are the same as those of reinforcing bar supporting rods on the third reinforcing bar supporting member, and the reinforcing bar supporting rod positioning portions on the first upright, the second upright, the first diagonal rod and the second diagonal rod are aligned.
Preferably, the reinforcing bar supporting bar positioning portion is a hollow pipe member welded and fixed to the first vertical column, the second vertical column, the first diagonal bar and the second diagonal bar, and an inner diameter of the hollow pipe member is larger than an outer diameter of the reinforcing bar supporting bar.
Preferably, the rack is further provided with two groups of prestressed corrugated pipe positioning members, each group of prestressed corrugated pipe positioning members is respectively connected with the plurality of first inclined rods or the plurality of second inclined rods which are positioned on the same side, and the prestressed corrugated pipe positioning members are arranged such that the bottoms of the prestressed corrugated pipe positioning members are flush with the bottoms of the prestressed corrugated pipes.
Compared with the prior art, the utility model discloses a rack for prefabricated box girder bottom plate web framework of ligature, the structure is comparatively simple, and the cost is lower, because of it carries out the operation subaerial, makes reinforcement's operation more convenient and safety. The spacing of reinforcing steel bars is limited through the reinforcing steel bar supporting rods and the comb-shaped members, so that the spacing between the reinforcing steel bars is more uniform, the calculation value in the process of more laminating design can be better played, the working efficiency is also greatly improved, and the construction progress can be effectively accelerated.
Drawings
FIG. 1 is a schematic structural diagram of a main body of a rack for binding a web steel reinforcement framework of a bottom plate of a prefabricated box girder;
fig. 2 is a schematic view of a third reinforcing bar support;
fig. 3 is a view showing that the third reinforcing bar support is mounted to the bracket unit.
Detailed Description
To facilitate a better understanding of the technical solutions of the present application, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a main body of a rack for binding a web steel reinforcement framework of a bottom plate of a prefabricated box girder.
As shown in figure 1, this a rack for ligature precast box girder bottom plate web steel reinforcement skeleton mainly includes: a plurality of support unit, two longerons 1, at least two first steel bar support piece 7, two second steel bar support piece 8 and a plurality of third steel bar support piece 10 that are parallel to each other.
Each support unit is of a right-angle U-shaped structure, a plurality of support units are arranged in parallel, projections of the support units in the length direction of the longitudinal beams 1 are overlapped, and tops of the support units are connected through the two longitudinal beams 1 to form an elongated right-angle U-shaped structure.
Each rack unit comprises a first upright 2, a second upright 2 ', a connecting rod 6, a first diagonal rod 4 and a second diagonal rod 4'. The first upright 2 and the second upright 2 'are parallel to each other, and the connecting rod 6 is located at the bottom of the bracket unit and connects the lower ends of the first upright 2 and the second upright 2'. One end of the first diagonal rod 4 is connected to the first upright 2 and the other end is connected to the connecting rod 6, the first diagonal rod 4 is inclined with respect to the first upright 2, one end of the second diagonal rod 4 ' is connected to the second upright 2 ' and the other end is connected to the connecting rod 6, and the second diagonal rod 4 ' is inclined with respect to the second upright 2 ', the first diagonal rod 4 and the second diagonal rod 4 ' are symmetrical to each other. The angle at which the first 4 and second 4' diagonals are inclined depends on the angle between the web and base formers. Each support unit can not only be consolidated to first down tube 4 and second down tube 4', makes it more stable firm, can also inject the angle between web reinforcing bar and the bottom plate reinforcing bar, makes the reinforcing bar that the ligature was accomplished accord with the design demand more.
The two longitudinal beams 1 are respectively connected to the upper ends of all the first uprights 2 or the upper ends of all the second uprights 2'. In the following description, the longitudinal direction of the side member 1 is defined as a longitudinal direction, and the longitudinal direction of the connecting bar 6 is defined as a lateral direction.
The bottoms of the plurality of bracket units are connected through a first reinforcing steel bar supporting part 7 and a second reinforcing steel bar supporting part 8 to form a bottom plate reinforcing steel bar supporting part. Each of the first reinforcing bar supports 7 is vertically erected on the connecting bar 6, respectively. Two second steel bar supporting pieces 8 are vertically erected on the connecting rod 6 respectively, one of the second steel bar supporting pieces 8 is fixedly connected with the connecting rod 6 and each first inclined rod 4 at the position of the lower end part of each first inclined rod 4, and the other second steel bar supporting piece 8 is fixedly connected with the connecting rod 6 and each second inclined rod 4 'at the position of the lower end part of each second inclined rod 4'. Each first reinforcing bar supporting member 7 is provided with a plurality of reinforcing bar positioning grooves distributed at predetermined intervals, and all the reinforcing bar positioning grooves are aligned in the transverse direction and the longitudinal direction. Second steel bar support member 8 can inject the position of reinforcing bar in horizontal both sides, avoids the reinforcing bar to take place the dislocation in horizontal both sides. The reinforcing bar constant head tank on the first steel bar support member 7 is used for fixing a position single reinforcing bar, and the quantity and the interval of reinforcing bar constant head tank depend on prefabricated box girder bottom plate web steel reinforcement framework's construction design requirement.
Third steel bar support member 10 is comb structure, and every third steel bar support member 10 sets up the one side at corresponding support unit with the mode that can dismantle respectively, and the lateral part of a plurality of support unit constitutes web steel bar support portion together with a plurality of third steel bar support member 10.
As shown in fig. 2, each of the third reinforcing bar supports 10 in the comb structure includes a hand-held portion 103 and a plurality of parallel reinforcing bar support bars 101, wherein the hand-held portion 103 is perpendicular to the plurality of reinforcing bar support bars 101 and connects one end portions of the plurality of reinforcing bar support bars 101. Each of the third reinforcing bar supporting members 10 further includes a limiting reinforcing bar 102, the limiting reinforcing bar 102 is vertically connected to the plurality of reinforcing bar supporting rods 101, and the limiting reinforcing bar 102 is parallel to the hand-held portion 103 and is located inside the hand-held portion 103.
The plurality of reinforcing bar support rods 101 of each of the third reinforcing bar supports 10 are distributed at a predetermined interval so as to support and define the interval of the web reinforcing bars. The third reinforcing bar support member 10 of this kind of structure can make the web reinforcing bar accurately and evenly fix a position, and the design demand of more laminating drawing helps adjusting and keeping the straightness of reinforcing bar.
At least two reinforcing steel bar supporting rod positioning parts 3 are respectively arranged on the first upright post 2, the second upright post 2 ', the first inclined rod 4 and the second inclined rod 4' of each support unit, the reinforcing steel bar supporting rod positioning parts 3 on the first upright post 2 are aligned with the reinforcing steel bar supporting rod positioning parts 3 on the first inclined rod 4 so as to jointly position and support one third reinforcing steel bar supporting piece 10, and the reinforcing steel bar supporting rod positioning parts 3 on the second upright post 2 'are aligned with the reinforcing steel bar supporting rod positioning parts 3 on the second inclined rod 4' so as to jointly position and support the other third reinforcing steel bar supporting piece 10.
The reinforcing bar supporting bar positioning part 3 is preferably a hollow pipe member welded and fixed to the first column 2, the second column 2 ', the first diagonal bar 4, and the second diagonal bar 4', and the inner diameter of the hollow pipe member is larger than the outer diameter of the reinforcing bar supporting bar 101. Before the reinforcing bars are bound, the third reinforcing bar support member 10 is mounted to the bracket units, on both sides of each of which the plurality of the third reinforcing bar support members 10 are symmetrically mounted, by holding the holding portions 103 of the third reinforcing bar support member 10 and applying force so that at least two reinforcing bar support rods 101 are inserted into and pass through the corresponding reinforcing bar support rod positioning portions 3, as shown in fig. 3.
Utilize the utility model discloses a during rack ligature preparation bottom plate web steel reinforcement skeleton, the convenience of operation is considered, carries out the ligature of bottom plate reinforcing bar earlier usually, does not install the support unit with third steel bar support piece 10 earlier this moment, but places other suitable places. After the completion of the lashing operation of the reinforcing bars of the bottom plate, before the start of lashing the web steel reinforcement cage, the third reinforcing bar support member 10 is inserted into the reinforcing bar support rod positioning portion 3, the reinforcing bar support rod 101 is used for supporting the horizontally arranged reinforcing bars, and the adjustment and the maintenance of the spacing and the straightness between the horizontally arranged reinforcing bars are facilitated. After web framework of steel reinforcement ligature was accomplished, make every bar support pole 101 leave corresponding bar support pole location portion 3 and remove third bar support piece 10 through the direction pull application of force that grips handheld portion 103 outside the rack, can remove the bottom plate web framework of steel reinforcement that the ligature is good this moment the utility model discloses a rack and suitable position of transporting.
The rack is also provided with two groups of prestressed corrugated pipe positioning members 5, each group of prestressed corrugated pipe positioning members 5 are respectively connected with a plurality of first inclined rods 4 or a plurality of second inclined rods 4' which are positioned on the same side, and the prestressed corrugated pipe positioning members 5 are arranged so that the bottoms of the prestressed corrugated pipe positioning members are flush with the bottoms of the prestressed corrugated pipes. Every interval 1m of below of second steel bar support piece 8 hangs and sets up a location coordinate sign 9, and location coordinate sign 9 is used for instructing the location coordinate of prestressing force corrugated pipe, mutually supports with prestressing force corrugated pipe positioning member 5, can fix a position prestressing force corrugated pipe more accurately and conveniently, ensures that prestressing force corrugated pipe positioning member 5's line type is smooth-going, and the position is accurate, is convenient for recheck, improves work efficiency.
Use the bottom plate web steel reinforcement skeleton that the rack ligature of this application was accomplished, accord with the design demand of drawing more, also reduced staff's potential safety hazard in the work progress, also improved work efficiency simultaneously, reduced various manufacturing cost.
The applicant of the present invention has made detailed description and description of the embodiments of the present invention with reference to the drawings, but those skilled in the art should understand that the above embodiments are only the preferred embodiments of the present invention, and the detailed description is only for helping the reader to better understand the spirit of the present invention, and not for the limitation of the protection scope of the present invention, on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021405706.3U CN212919870U (en) | 2020-07-16 | 2020-07-16 | Rack for binding prefabricated box girder bottom plate web steel reinforcement frameworks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021405706.3U CN212919870U (en) | 2020-07-16 | 2020-07-16 | Rack for binding prefabricated box girder bottom plate web steel reinforcement frameworks |
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| Publication Number | Publication Date |
|---|---|
| CN212919870U true CN212919870U (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021405706.3U Expired - Fee Related CN212919870U (en) | 2020-07-16 | 2020-07-16 | Rack for binding prefabricated box girder bottom plate web steel reinforcement frameworks |
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| CN (1) | CN212919870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032774A (en) * | 2021-11-10 | 2022-02-11 | 中建新疆建工土木工程有限公司 | Device for positioning prestressed pipeline of cast-in-situ continuous box girder |
-
2020
- 2020-07-16 CN CN202021405706.3U patent/CN212919870U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032774A (en) * | 2021-11-10 | 2022-02-11 | 中建新疆建工土木工程有限公司 | Device for positioning prestressed pipeline of cast-in-situ continuous box girder |
| CN114032774B (en) * | 2021-11-10 | 2024-02-02 | 中建新疆建工土木工程有限公司 | Device for positioning prestressed pipeline of cast-in-situ continuous box girder |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |