CN210134357U - Pi-shaped bracket for construction of upper cross beam of H-shaped cable tower - Google Patents
Pi-shaped bracket for construction of upper cross beam of H-shaped cable tower Download PDFInfo
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- CN210134357U CN210134357U CN201920670839.4U CN201920670839U CN210134357U CN 210134357 U CN210134357 U CN 210134357U CN 201920670839 U CN201920670839 U CN 201920670839U CN 210134357 U CN210134357 U CN 210134357U
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a pi type bracket for construction of H type cable tower entablature installs a plurality of A-frame respectively on the relative lateral wall of two cable towers, has set up at least 2 lower distribution roof beams on every A-frame, has set up the spandrel girder on the lower distribution roof beam between two cable towers, the spandrel girder is pi type truss structure, including a plurality of pi type bailey framves that set up side by side, every pi type bailey frame includes a rectangle bailey piece, and a trapezoidal bailey piece is connected respectively to the lower chord both ends bottom of every rectangle bailey piece. The utility model discloses the spandrel girder adopts pi type truss, and the span is big and bending resistance is good, can be applicable to the construction of long-span H type cable tower entablature, and it is big to have solved current steel-pipe pile support that falls to the ground and consume the material to and the poor problem of triangular bracket bearing capacity.
Description
Technical Field
The utility model relates to a cable-stay bridge or suspension bridge's H type pylon entablature, concretely relates to pi type bracket that is used for H type pylon entablature to be under construction.
Background
In the process of constructing a cable-stayed bridge or a suspension bridge adopting the H-shaped cable tower, the floor steel pipe support can be adopted for the construction of the upper beam of the cable tower, but for the beam of the ultrahigh cable tower, the steel material using amount of the floor steel pipe support is large, the cost is high, the time spent for erecting the support is long, and the construction progress is not accelerated. In order to solve the problems, a triangular bracket construction is commonly adopted at present, the body structure of the triangular bracket construction is as shown in fig. 1, when cable towers are poured, embedded parts 2 are respectively arranged at certain heights on opposite sides of two cable towers 1, a plurality of triangular brackets 3 arranged in parallel are fixed on each cable tower 1 through the embedded parts, a lower distribution beam 4 is erected between the triangular brackets 3 on each tower body, a tool steel bearing beam 5 is erected on the lower distribution beam 4, an upper distribution beam 6 is erected on the tool steel bearing beam 5, and a construction template 8 of an upper cross beam 7 is installed, so that the upper cross beam construction bracket is formed. The bracket structure is not limited by the height of the cable tower, materials can be saved, the construction progress can be accelerated, and when the span of the upper cross beam 7 is large, the bending resistance of the I-steel bearing beam 5 is poor, so that the bracket construction method is limited to a certain extent.
Disclosure of Invention
The utility model aims at adopting the steel pipe support that falls to the ground with high costs, the period of construction to the construction of present H type cable tower entablature to and the limited problem of triangle bracket bearing capacity poor use, provide a pi type bracket that is used for H type cable tower entablature construction that bearing capacity is strong, with low costs.
The technical scheme of the utility model as follows:
a pi-shaped bracket for construction of an upper cross beam of an H-shaped cable tower is characterized in that a plurality of triangular supports are respectively mounted on opposite side walls of two cable towers, each triangular support comprises a vertical rod, a cross rod and an inclined stay rod, the lower end of the vertical rod is supported on a bracket fixed on a tower body, the upper end of the vertical rod is connected with a tower body embedded part through a pin shaft, one end of the cross rod is welded with the upper end of the vertical rod, and two ends of the inclined stay rod are respectively welded with the other end of the cross rod and the lower end of the vertical rod; at least 2 lower distribution beams are erected on the cross bar of each triangular bracket on each tower body, a bearing beam is erected on the lower distribution beam between the two cable towers, an upper distribution beam is erected on the bearing beam, and an upper cross beam construction template and a lower cross beam construction template are installed on the upper distribution beam, wherein the upper cross beam construction template is characterized in that: the bearing beam is of a pi-shaped truss structure, the pi-shaped truss comprises a plurality of pi-shaped bailey frames which are arranged in parallel, each pi-shaped bailey frame comprises a rectangular bailey piece, the bottoms of the two ends of a lower chord of each rectangular bailey piece are respectively connected with a trapezoidal bailey piece, each trapezoidal bailey piece comprises a bottom edge, a vertical edge and a bevel edge, the bottom edge is supported on a lower distribution beam erected on a triangular support, the vertical edge is perpendicular to the lower chord of the rectangular bailey piece, and the upper end and the lower end of the vertical edge are respectively welded with the end part of the lower chord and one end of the bottom edge; the lower end of the bevel edge is welded with the other end of the bottom edge, and the upper end of the bevel edge is inclined towards the middle of the lower chord and is welded with the lower chord; the upper distribution beam is erected on an upper chord of the rectangular Bailey sheet.
The utility model discloses a pi type truss replaces current triangular support's horizontal worker steel bearing beam, pi type truss span is big and bending resistance is good, can be applicable to the construction of striding footpath H type cable tower entablature greatly, it consumes the material big to have solved current steel-pipe pile support that falls to the ground, and the poor problem of triangular support bearing capacity, each component of pi type bracket adopts the tower crane to install, set up the in-process nearly no welding operation, the speed of setting up has been improved, and demolish simple and convenient, pi type bracket still can be used to the 0# piece after demolising, other structure constructions such as bent cap, the material utilization ratio has been improved.
Drawings
FIG. 1 is a schematic structural view of a conventional upper cross beam construction triangular bracket;
fig. 2 is a schematic structural diagram of the present invention;
fig. 3 is a schematic side view of a-a in fig. 2.
Detailed Description
As shown in fig. 2 and 3, the utility model provides a pi-shaped bracket for construction of an upper beam of an H-shaped cable tower, a plurality of triangular supports 3 are respectively installed on the opposite side walls of two cable towers 1, each triangular support comprises a vertical rod 31, a horizontal rod 32 and an inclined strut 33, the lower end of the vertical rod 31 is supported on a bracket 9 fixed on a tower body, the upper end of the vertical rod 31 is connected with a tower body embedded part 2 through a pin shaft, one end of the horizontal rod 32 is welded with the upper end of the vertical rod 31, and the two ends of the inclined strut 33 are respectively welded with the other end of the horizontal rod 32 and the lower end of the vertical rod 31; at least 2 lower distribution beams 4 are erected on the cross bar of each triangular support 3 on each tower body, a bearing beam is erected between the lower distribution beams 4 between the two cable towers, an upper distribution beam 6 is erected on the bearing beam, and a construction template 8 of an upper cross beam 7 is installed on the upper distribution beam 6; the bearing beam is of a pi-shaped truss structure and comprises a plurality of pi-shaped Bailey frames which are arranged in parallel, each pi-shaped Bailey frame comprises a rectangular Bailey sheet 10, and two ends of the bottom of a lower chord 101 of each rectangular Bailey sheet 10 are respectively connected with a trapezoidal Bailey sheet 11; the trapezoidal bailey piece 11 comprises a bottom edge 111, a vertical edge 112 and a bevel edge 113, wherein the bottom edge 111 is supported on the lower distribution beam 4 erected on the triangular bracket, the vertical edge 112 is aligned with the vertical rod 103 at the end part of the rectangular bailey piece, and the upper end and the lower end of the vertical edge 112 are respectively welded with the end part of the lower chord 101 of the rectangular bailey piece and one end of the bottom edge 111 of the trapezoidal bailey piece; the lower end of the bevel edge 113 is welded with the other end of the bottom edge 111, and the upper end of the bevel edge 113 inclines towards the middle of the lower chord 101 of the rectangular bailey piece and is welded with the lower chord 101; the upper distribution beam 6 is erected on the upper chord 102 of the rectangular beret.
The above structure of the utility model, the worker steel bearing beam on traditional triangular bracket has been replaced to the adoption bei lei truss. The leap ability of general bailey truss all is superior to the worker steel, and the utility model discloses a bailey truss is pi type structure, sets up a splayed pole again in ordinary bailey frame bottom in other words, has further strengthened its leap ability and bending resistance, can satisfy the construction requirement of large-span entablature.
Claims (1)
1. A pi-shaped bracket for construction of an upper cross beam of an H-shaped cable tower is characterized in that a plurality of triangular supports are respectively mounted on opposite side walls of two cable towers, each triangular support comprises a vertical rod, a cross rod and an inclined stay rod, the lower end of the vertical rod is supported on a bracket fixed on a tower body, the upper end of the vertical rod is connected with a tower body embedded part through a pin shaft, one end of the cross rod is welded with the upper end of the vertical rod, and two ends of the inclined stay rod are respectively welded with the other end of the cross rod and the lower end of the vertical rod; at least 2 lower distribution beams are erected on the cross bar of each triangular bracket on each tower body, a bearing beam is erected on the lower distribution beam between the two cable towers, an upper distribution beam is erected on the bearing beam, and an upper cross beam construction template and a lower cross beam construction template are installed on the upper distribution beam, wherein the upper cross beam construction template is characterized in that: the bearing beam is of a pi-shaped truss structure, the pi-shaped truss comprises a plurality of pi-shaped bailey frames which are arranged in parallel, each pi-shaped bailey frame comprises a rectangular bailey piece, the bottoms of the two ends of a lower chord of each rectangular bailey piece are respectively connected with a trapezoidal bailey piece, each trapezoidal bailey piece comprises a bottom edge, a vertical edge and a bevel edge, the bottom edge is supported on a lower distribution beam erected on a triangular support, the vertical edge is perpendicular to the lower chord of the rectangular bailey piece, and the upper end and the lower end of the vertical edge are respectively welded with the end part of the lower chord and one end of the bottom edge; the lower end of the bevel edge is welded with the other end of the bottom edge, and the upper end of the bevel edge is inclined towards the middle of the lower chord and is welded with the lower chord; the upper distribution beam is erected on an upper chord of the rectangular Bailey sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920670839.4U CN210134357U (en) | 2019-05-12 | 2019-05-12 | Pi-shaped bracket for construction of upper cross beam of H-shaped cable tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920670839.4U CN210134357U (en) | 2019-05-12 | 2019-05-12 | Pi-shaped bracket for construction of upper cross beam of H-shaped cable tower |
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| Publication Number | Publication Date |
|---|---|
| CN210134357U true CN210134357U (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920670839.4U Active CN210134357U (en) | 2019-05-12 | 2019-05-12 | Pi-shaped bracket for construction of upper cross beam of H-shaped cable tower |
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| CN (1) | CN210134357U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910537A (en) * | 2020-08-28 | 2020-11-10 | 河南省正航建设工程有限公司 | A space truss reinforcement system for bridge piers |
| CN113235452A (en) * | 2021-06-11 | 2021-08-10 | 杭州萧宏建设环境集团有限公司 | Support for large-span multi-line superposition of river-crossing steel pipes under complex working conditions |
| CN116623549A (en) * | 2023-06-01 | 2023-08-22 | 中交二公局第五工程有限公司 | Asynchronous construction method of bridge cable tower and its upper beam |
-
2019
- 2019-05-12 CN CN201920670839.4U patent/CN210134357U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910537A (en) * | 2020-08-28 | 2020-11-10 | 河南省正航建设工程有限公司 | A space truss reinforcement system for bridge piers |
| CN113235452A (en) * | 2021-06-11 | 2021-08-10 | 杭州萧宏建设环境集团有限公司 | Support for large-span multi-line superposition of river-crossing steel pipes under complex working conditions |
| CN116623549A (en) * | 2023-06-01 | 2023-08-22 | 中交二公局第五工程有限公司 | Asynchronous construction method of bridge cable tower and its upper beam |
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