CN210132636U - Whole ligature device of precast box girder hogging moment notch reinforcing bar - Google Patents
Whole ligature device of precast box girder hogging moment notch reinforcing bar Download PDFInfo
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- CN210132636U CN210132636U CN201920815718.4U CN201920815718U CN210132636U CN 210132636 U CN210132636 U CN 210132636U CN 201920815718 U CN201920815718 U CN 201920815718U CN 210132636 U CN210132636 U CN 210132636U
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Abstract
The utility model provides an integral ligature device of precast box girder hogging moment notch reinforcing bar, characterized by: the upper ends of the four vertical supporting legs are welded with a rectangular upper frame, and the lower parts of the four vertical supporting legs are welded with a rectangular lower frame; a first reinforcing beam and a second reinforcing beam are welded in the rectangular upper frame at equal intervals, a first positioning rod, a second positioning rod, a third positioning rod and a fourth positioning rod are welded on one side edge of the rectangular upper frame, the first positioning rod is welded on one side edge of the rectangular upper frame and corresponds to the left frame, and the fourth positioning rod is welded on one side edge of the rectangular upper frame and corresponds to the right frame; according to the area/volume of the needed hogging moment reinforcing steel bar, sleeving the hogging moment reinforcing steel bar on the hogging moment reinforcing steel bar integral binding device; then with many last splice bars and many binding bars down equidistant ligature in the hogging moment reinforcing bar inside in proper order, wherein many last splice bars and whole modularization hogging moment reinforcing bar front end parallel and level, many tie bars stretch out whole modularization hogging moment reinforcing bar rear end down.
Description
Technical Field
The utility model relates to a prefabricated bridge construction technical field, concretely relates to whole ligature device of prefabricated box girder hogging moment notch reinforcing bar.
Background
At present, in the construction of a prefabricated box girder, the quality problems of low percent of pass, uneven spacing and the like of a steel bar protective layer generally exist, particularly negative-moment steel bars are difficult to control the spacing, the position and the like of the negative-moment steel bars when the box girder is bound and installed on site due to the fact that the number of the steel bars at the negative-moment position of the box girder is large, the construction quality of a beam body at the negative-moment position is greatly influenced, and the prestress tensioning of the box girder at the later stage can be influenced particularly.
Disclosure of Invention
The utility model aims at providing a prefabricated box girder hogging moment notch reinforcing bar whole binding device to the not enough of prefabricated box girder hogging moment reinforcing bar ligature existence among the current bridge works, the device has realized that the construction of prefabricated box girder hogging moment reinforcing bar is standardized, modularization, effectively promotes the construction quality of prefabricated box girder.
The technical scheme of the utility model is that: a prefabricated box girder hogging moment notch reinforcing steel bar integral binding device comprises four vertical supporting legs, a rectangular upper frame, a rectangular lower frame and four positioning rods; the method is characterized in that: the upper ends of the four vertical supporting legs are welded with a rectangular upper frame, and the lower parts of the four vertical supporting legs are welded with a rectangular lower frame; a first reinforcing beam and a second reinforcing beam are welded in the rectangular upper frame at equal intervals, a first positioning rod, a second positioning rod, a third positioning rod and a fourth positioning rod are welded on one side edge of the rectangular upper frame, the first positioning rod is welded on one side edge of the rectangular upper frame and corresponds to the left frame, and the fourth positioning rod is welded on one side edge of the rectangular upper frame and corresponds to the right frame; according to the area/volume of the needed hogging moment reinforcing steel bar, sleeving the hogging moment reinforcing steel bar on the hogging moment reinforcing steel bar integral binding device; then, a plurality of upper connecting ribs and a plurality of lower connecting ribs are sequentially bound inside the negative-moment reinforcing steel bars at equal intervals, wherein the plurality of upper connecting ribs are flush with the front end of the integral modular negative-moment reinforcing steel bar, and the plurality of lower connecting ribs extend out of the rear end of the integral modular negative-moment reinforcing steel bar to form an integral modular box girder negative-moment reinforcing steel bar body.
The first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are made of metal round steel materials, and the lengths and the diameters of the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are the same.
And the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are horizontally welded according to the internal diameter interval of the hogging moment notch reinforcing steel bar.
And the distance between the first positioning rod and the third positioning rod is greater than the length of the inner diameter of the second hogging moment reinforcing steel bar. The distance between the second positioning rod and the fourth positioning rod is larger than the length of the inner diameter of the first hogging moment steel bar.
N scales '0' and a scale 'a' with the same interval are arranged on the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod.
The utility model discloses take following step in operation process:
1. and in the precast box girder hogging moment notch reinforcing steel bar processing factory, processing the corresponding hogging moment reinforcing steel bars on a numerical control bending machine or a numerical control hoop bending machine according to a design drawing.
2. Sleeving a first hogging moment reinforcing steel bar on a second positioning rod, a third positioning rod and a fourth positioning rod (on the right side), and placing the three positioning rods at the positions with the scales of 0; the second negative moment reinforcing steel bar is sleeved on the first positioning rod, the second positioning rod and the third positioning rod (on the left side), is tightly attached to the first negative moment reinforcing steel bar, and is respectively bound at two rod positions of the second positioning rod and the third positioning rod by binding wires.
4. Sleeving a third hogging moment steel bar on a second positioning rod, a third positioning rod and a fourth positioning rod (on the right side), and placing the three positioning rods at the positions of scales a; the fourth negative moment reinforcing steel bar is sleeved on the first positioning rod, the second positioning rod and the third positioning rod (on the left side), is tightly attached to the third negative moment reinforcing steel bar, and is respectively bound at the two rod positions of the second positioning rod and the third positioning rod by binding wires; the operation is carried out in a reciprocating way until the negative moment reinforcing steel bar is uniformly sleeved on the negative moment reinforcing steel bar integral binding device according to the area/volume of the required negative moment reinforcing steel bar. Then the integral modular negative-moment reinforcing steel bars are taken down from the device, and a plurality of upper connecting bars and a plurality of lower connecting bars are sequentially bound in the negative-moment reinforcing steel bars at equal intervals and placed in a storage site; and carrying to the site for installation during construction.
The utility model has the advantages that: the utility model provides an integral ligature device of precast box girder hogging moment notch reinforcing bar, simple manufacture, convenient and practical has improved the reinforcement operation efficiency of precast box girder for the construction progress has effectively guaranteed the interval position of hogging moment strengthening rib simultaneously, has promoted the stretch-draw quality of precast box girder, realizes the accurate positioning of reinforcing bar. Construction standardization, modularization and operation pipelining are fully achieved, and construction quality of the prefabricated box girder is integrally improved.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is an operation diagram of the present invention.
Figure 3 is the utility model discloses accomplish modular hogging moment rebar map after the ligature.
In fig. 1, 2 and 3, 1 is a support leg, 2 is an upper rectangular frame, 3 is a lower rectangular frame, 4 is a first cross beam, 5 is a second cross beam, 6 is a first positioning rod, 7 is a second positioning rod, 8 is a third positioning rod, 9 is a fourth positioning rod, 10 is a second hogging moment reinforcing steel bar (left side), 10a is a fourth hogging moment reinforcing steel bar, 11 is a first hogging moment reinforcing steel bar (right side), 11b is a third hogging moment reinforcing steel bar, 12 is a hogging moment reinforcing steel bar, 13 is an upper connecting bar, and 14 is a lower connecting bar.
Detailed Description
The embodiment of the utility model is as shown in figure 1 and figure 2: the utility model provides an integral ligature device of prefabricated box girder hogging moment notch reinforcing bar, includes four vertical landing legs 1, and the upper end welding of four vertical landing legs 1 has rectangle upper ledge 2, and the lower part welding has rectangle underframe 3, welds equidistant first stiffening beam 4 and second stiffening beam 5 in rectangle upper ledge 2, and first stiffening beam 4 and second stiffening beam 5 are horizontal welding from beginning to end (as shown in figure 1 and figure 2). A first positioning rod 6, a second positioning rod 7, a third positioning rod 8 and a fourth positioning rod 9 are horizontally welded at one side edge of the rectangular upper frame 2, wherein the first positioning rod 6 is welded at one side edge of the rectangular upper frame 2 corresponding to the left frame, and the fourth positioning rod 9 is welded at one side edge of the rectangular upper frame 2 corresponding to the right frame. The second positioning rod 7 and the third positioning rod 8 have the same distance with the first positioning rod 6 and the fourth positioning rod 9 respectively, and are welded at the front frame positions of the first reinforcing beam 4 and the second reinforcing beam 5 correspondingly (as shown in fig. 1 and fig. 2).
The utility model discloses a rectangle upper ledge 2, rectangle underframe 3, four vertical landing legs 1 all adopt the metal angle steel welding. First locating lever 6, second locating lever 7, third locating lever 8 and fourth locating lever 9 all adopt metal circle steel material, and its length, diameter are all the same. On first locating lever, second locating lever, third locating lever and fourth locating lever, be equipped with n same interval ligature hogging moment reinforcing bar scale "0" and scale "a" (the utility model discloses do not all draw).
The utility model discloses in the embodiment, the distance between first locating lever 6 and the third locating lever 8 is greater than the internal diameter length of second hogging moment reinforcing bar 10, and the interval of second locating lever 7 and fourth locating lever 9 is greater than the length of 11 internal diameters of first hogging moment reinforcing bar.
The utility model discloses take following step in operation process:
1. in the precast box girder hogging moment notch reinforcing steel bar processing factory, processing the corresponding hogging moment reinforcing steel bar 12 on a numerical control bending machine or a numerical control hoop bending machine according to a design drawing.
2. Sleeving a first hogging moment steel bar 11 on (right side of) a second positioning rod 6, a third positioning rod 8 and a fourth positioning rod 9, and placing the three positioning rods at the positions with the scales of 0; the second hogging moment reinforcing steel bar 10 is sleeved on (left side of) the first positioning rod, the second positioning rod 7 and the third positioning rod 8, is tightly attached to the first hogging moment reinforcing steel bar 11, and is respectively bound at two rod positions of the second positioning rod 7 and the third positioning rod 8 by binding wires.
4. Then a third hogging moment steel bar 11a is sleeved on (right side of) a second positioning rod 7, a third positioning rod 8 and a fourth positioning rod 9 and is placed at the scale a positions of the three positioning rods; the fourth negative moment reinforcing steel bar 10a is sleeved on (on the left side of) the first positioning rod 6, the second positioning rod 7 and the third positioning rod 8, is tightly attached to the third negative moment reinforcing steel bar 11a, and is respectively bound at two rod positions of the second positioning rod 7 and the third positioning rod 8 by binding wires; the operation is carried out according to the scales '0' and 'a' marked on the four positioning rods in such a reciprocating way until the steel bars are uniformly sleeved on the whole binding device of the hogging moment steel bars according to the area/volume of the required hogging moment steel bars. Then binding a plurality of upper connecting ribs 13 and a plurality of lower connecting ribs inside the negative-moment reinforcing steel bars at equal intervals in sequence, wherein the plurality of upper connecting ribs 13 are flush with the front end of the integral modularized negative-moment reinforcing steel bar, and the plurality of lower connecting ribs 14 extend out of the rear end of the integral modularized negative-moment reinforcing steel bar to form an integral modularized box girder negative-moment reinforcing steel bar body, so that the integral modularized box girder negative-moment reinforcing steel bar body is formed, and then taking down the integral modularized negative-moment reinforcing steel bar from the device and placing the integral modularized negative-moment reinforcing steel bar in a storage site; and carrying to the site for direct installation during construction.
Claims (5)
1. A prefabricated box girder hogging moment notch reinforcing steel bar integral binding device comprises four vertical supporting legs, a rectangular upper frame, a rectangular lower frame and four positioning rods; the method is characterized in that: the upper ends of the four vertical supporting legs are welded with a rectangular upper frame, and the lower parts of the four vertical supporting legs are welded with a rectangular lower frame; a first reinforcing beam and a second reinforcing beam are welded in the rectangular upper frame at equal intervals, a first positioning rod, a second positioning rod, a third positioning rod and a fourth positioning rod are welded on one side edge of the rectangular upper frame, the first positioning rod is welded on one side edge of the rectangular upper frame and corresponds to the left frame, and the fourth positioning rod is welded on one side edge of the rectangular upper frame and corresponds to the right frame; according to the area/volume of the needed hogging moment reinforcing steel bar, sleeving the hogging moment reinforcing steel bar on the hogging moment reinforcing steel bar integral binding device; then, a plurality of upper connecting ribs and a plurality of lower connecting ribs are sequentially bound inside the negative-moment reinforcing steel bars at equal intervals, wherein the plurality of upper connecting ribs are flush with the front end of the integral modular negative-moment reinforcing steel bar, and the plurality of lower connecting ribs extend out of the rear end of the integral modular negative-moment reinforcing steel bar to form an integral modular box girder negative-moment reinforcing steel bar body.
2. The integral binding device for the hogging moment notch reinforcing steel bars of the precast box girder according to claim 1, is characterized in that: the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are made of metal round steel materials, and the lengths and the diameters of the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are identical.
3. The integral binding device for the hogging moment notch reinforcing steel bars of the precast box girder according to claim 1, is characterized in that: the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod are horizontally welded according to the inner diameter interval of the hogging moment notch reinforcing steel bars.
4. The integral binding device for the hogging moment notch reinforcing steel bars of the precast box girder according to claim 1, is characterized in that: the distance between the first positioning rod and the third positioning rod is greater than the length of the inner diameter of the second hogging moment reinforcing steel bar; the distance between the second positioning rod and the fourth positioning rod is greater than the length of the inner diameter of the first hogging moment reinforcing steel bar.
5. The integral binding device for the hogging moment notch reinforcing steel bars of the precast box girder according to claim 1, is characterized in that: n scales '0' and a scale 'a' with the same interval are arranged on the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920815718.4U CN210132636U (en) | 2019-05-31 | 2019-05-31 | Whole ligature device of precast box girder hogging moment notch reinforcing bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920815718.4U CN210132636U (en) | 2019-05-31 | 2019-05-31 | Whole ligature device of precast box girder hogging moment notch reinforcing bar |
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| CN210132636U true CN210132636U (en) | 2020-03-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117718417A (en) * | 2024-02-07 | 2024-03-19 | 中铁四局集团有限公司 | Processing method for integrally bending bridge deck reinforcement mesh |
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2019
- 2019-05-31 CN CN201920815718.4U patent/CN210132636U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117718417A (en) * | 2024-02-07 | 2024-03-19 | 中铁四局集团有限公司 | Processing method for integrally bending bridge deck reinforcement mesh |
| CN117718417B (en) * | 2024-02-07 | 2024-05-10 | 中铁四局集团有限公司 | Processing method for integrally bending bridge deck reinforcement mesh |
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