CN111962387A - Adjustable pressure induction type active cross brace device - Google Patents
Adjustable pressure induction type active cross brace device Download PDFInfo
- Publication number
- CN111962387A CN111962387A CN202010907619.6A CN202010907619A CN111962387A CN 111962387 A CN111962387 A CN 111962387A CN 202010907619 A CN202010907619 A CN 202010907619A CN 111962387 A CN111962387 A CN 111962387A
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- CN
- China
- Prior art keywords
- steel pipe
- main steel
- mounting seat
- concrete
- mount pad
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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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- 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an adjustable pressure induction type active cross brace device, which is characterized in that: the device include main steel pipe subassembly and the control tube subassembly that matches each other, main steel pipe subassembly includes the pre-buried concrete mount pad on the concrete, is connected with main steel pipe on the concrete mount pad, the tip of main steel pipe is provided with the distal end mount pad, still is provided with surface type intelligence string strain gauge simultaneously on the outer wall of main steel pipe, the control tube subassembly includes the pre-buried near-end mount pad on the concrete, is connected with the control tube on the near-end mount pad, the external diameter of control tube and the internal diameter phase-match of main steel pipe be provided with two symmetric distribution's jack and two symmetric distribution's wedge supporting mechanism between distal end mount pad and the near-end mount pad, wedge supporting mechanism constitute by two supporting blocks, all be provided with an inclined plane on every supporting block.
Description
Technical Field
The invention relates to the field of bridge cable tower construction, in particular to an adjustable pressure induction type active cross brace device.
Background
The cable tower is more and more used for modern large-span cable-stayed bridges due to the beautiful appearance and the superior structure, but the construction difficulty is higher due to the complicated structure of the tower body. The multi-purpose hydraulic climbing formwork method cantilever construction of pylon of cable tower, under the effect of concrete dead weight, construction load and wind load, can produce great moment of flexure, make the root tensile stress of pylon great, easily produce the crack in stress concentration department. The traditional cable tower construction adopts a passive steel pipe support mode, the method is greatly influenced by temperature, is inconvenient to install, cannot pre-bias and adjust the tower body according to the construction working condition, cannot quantify the stress strain of the cross brace and the tower column, and therefore has a limited control effect on the line type of the tower column.
There is therefore a need for a method or apparatus that addresses the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an adjustable pressure induction type active cross brace device which can adjust the pushing force of a cross brace according to different construction working conditions, effectively reduce the tensile stress of the root part of a tower column, prevent the tower column from generating cracks and ensure the construction to be carried out orderly while ensuring the construction quality.
The technical solution of the invention is as follows: the utility model provides a forced induction formula initiative stull device with adjustable which characterized in that: the device comprises a main steel pipe component and an adjusting pipe component which are matched with each other,
the main steel pipe assembly comprises a concrete mounting seat 2 pre-buried on concrete 1, a main steel pipe 3 is connected on the concrete mounting seat 2, a far-end mounting seat 4 is arranged at the end part of the main steel pipe 3, a surface type intelligent string strain gauge 5 is also arranged on the outer wall of the main steel pipe 3,
the adjusting pipe assembly comprises a near-end mounting seat 6 pre-buried on the concrete 1, an adjusting pipe 7 is connected to the near-end mounting seat 6, the outer diameter of the adjusting pipe 7 is matched with the inner diameter of the main steel pipe 3, two symmetrically-distributed jacks 8 and two symmetrically-distributed wedge-shaped supporting mechanisms 9 are arranged between the far-end mounting seat 4 and the near-end mounting seat 6, each wedge-shaped supporting mechanism 9 is composed of two supporting blocks 10, and each supporting block 10 is provided with an inclined surface 11.
The concrete mounting base 2 comprises an embedded steel plate 12, and a plurality of stiffening plates 13 are distributed on the surface of the embedded steel plate 12.
Compared with the prior art, the invention has the following advantages:
this kind of structural style's adjustable forced induction formula initiative stull device, its simple structure, design benefit, rationally distributed, it is big, the installation is inconvenient to traditional passive form, the unable steel pipe bearing structure of adjusting length, receives the temperature influence, can't advance to incline to reach the in-process adjustment to the body of the tower, stull stress can't quantify, to the limited scheduling problem of control effect of column line type, design a special structure. Its easy operation, construction safety through the form that sets up connecting portion between main steel pipe and governing pipe, make the whole length of stull adjustable to the butt joint is convenient, and the efficiency of construction is high, and structural stability is strong. Through the design of "active interim stull + sensor", can adjust stull jacking force according to different construction operating mode to monitor the meeting an emergency of stull stress through the sensor that sets up on the stull, greatly increased cable tower bending moment resistance's ability and stability, effectively reduce the column root and draw stress, thereby make the column not produce the crack, ensure to construct when guaranteeing construction quality and go on in order. And the manufacturing process is simple, the manufacturing cost is low, so that the novel LED lamp has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a side view of an embodiment of the present invention.
Detailed Description
The following description will explain embodiments of the present invention with reference to the accompanying drawings. As shown in fig. 1 and 2: an adjustable pressure induction type active cross brace device comprises a main steel pipe component and an adjusting pipe component which are matched with each other,
the main steel pipe assembly comprises a concrete mounting seat 2 pre-buried on concrete 1, a main steel pipe 3 is connected on the concrete mounting seat 2, a far-end mounting seat 4 is arranged at the end part of the main steel pipe 3, a surface type intelligent string strain gauge 5 is also arranged on the outer wall of the main steel pipe 3,
the adjusting pipe assembly comprises a near-end mounting seat 6 pre-buried on the concrete 1, an adjusting pipe 7 is connected to the near-end mounting seat 6, the outer diameter of the adjusting pipe 7 is matched with the inner diameter of the main steel pipe 3, two symmetrically-distributed jacks 8 and two symmetrically-distributed wedge-shaped supporting mechanisms 9 are arranged between the far-end mounting seat 4 and the near-end mounting seat 6, each wedge-shaped supporting mechanism 9 is composed of two supporting blocks 10, and each supporting block 10 is provided with an inclined surface 11.
The concrete mounting base 2 comprises an embedded steel plate 12, and a plurality of stiffening plates 13 are distributed on the surface of the embedded steel plate 12.
The working process of the adjustable pressure induction type active cross brace device provided by the embodiment of the invention is as follows: during cable tower construction, firstly embedding creeping cones at corresponding positions, then temporarily connecting a main steel pipe assembly and an adjusting pipe assembly together through channel steel to a mounting position, firstly connecting a main steel pipe 1 to a concrete mounting seat 2, then connecting an adjusting pipe 7 to the concrete mounting seat 2, after preparation work is finished, symmetrically arranging two jacks 8 between a far-end mounting seat 4 and a near-end mounting seat 6, applying active force to the cross brace through the jacks 8 according to a finite element calculation result, applying force in a graded loading mode to finish pre-deflection of a tower column, after graded loading is finished, keeping loads by the jacks 8, installing a wedge-shaped supporting mechanism 9 between the far-end mounting seat 4 and the near-end mounting seat 6, and simultaneously squeezing the two supporting blocks 10 into a space between the far-end mounting seat 4 and the near-end mounting seat 6 during installation, enabling the inclined planes 11 on the two supporting blocks 10 to be in contact with each other and supported between the far-end mounting seat 4 and the near-end mounting seat 6, then welding the two inclined planes 11 into a whole, respectively welding the base of the supporting block 10 and the two mounting seats into a whole, supporting the far-end mounting seat 4 and the near-end mounting seat 6 by virtue of the wedge-shaped supporting mechanism 9, slowly unloading the two jacks 8, and then removing the jacks to complete system conversion;
and then adjusting the jacking force of other cross braces, collecting data collected by the surface type intelligent string strain gauge 5 on each cross brace device after the calculation working condition is met, analyzing the pressure data of each cross brace device, and performing accurate and dynamic control on the cable tower construction.
Claims (2)
1. The utility model provides a forced induction formula initiative stull device with adjustable which characterized in that: the device comprises a main steel pipe component and an adjusting pipe component which are matched with each other,
the main steel pipe assembly comprises a concrete mounting seat (2) pre-buried on concrete (1), a main steel pipe (3) is connected to the concrete mounting seat (2), a far-end mounting seat (4) is arranged at the end part of the main steel pipe (3), a surface type intelligent string strain gauge (5) is arranged on the outer wall of the main steel pipe (3),
the adjusting pipe assembly comprises a near-end mounting seat (6) embedded in concrete (1), an adjusting pipe (7) is connected to the near-end mounting seat (6), the outer diameter of the adjusting pipe (7) is matched with the inner diameter of a main steel pipe (3), two symmetrically-distributed jacks (8) and two symmetrically-distributed wedge-shaped supporting mechanisms (9) are arranged between a far-end mounting seat (4) and the near-end mounting seat (6), each wedge-shaped supporting mechanism (9) consists of two supporting blocks (10), and each supporting block (10) is provided with an inclined surface (11).
2. The adjustable pressure sensitive active bolster device of claim 1, wherein: the concrete mounting seat (2) comprises an embedded steel plate (12), and a plurality of stiffening plates (13) are distributed on the surface of the embedded steel plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010907619.6A CN111962387A (en) | 2020-09-02 | 2020-09-02 | Adjustable pressure induction type active cross brace device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010907619.6A CN111962387A (en) | 2020-09-02 | 2020-09-02 | Adjustable pressure induction type active cross brace device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111962387A true CN111962387A (en) | 2020-11-20 |
Family
ID=73392247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010907619.6A Pending CN111962387A (en) | 2020-09-02 | 2020-09-02 | Adjustable pressure induction type active cross brace device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111962387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338163A (en) * | 2021-04-30 | 2021-09-03 | 广西北投交通养护科技集团有限公司 | Opposite-pulling combined device for bridge tower inclined support and construction method |
-
2020
- 2020-09-02 CN CN202010907619.6A patent/CN111962387A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338163A (en) * | 2021-04-30 | 2021-09-03 | 广西北投交通养护科技集团有限公司 | Opposite-pulling combined device for bridge tower inclined support and construction method |
| CN113338163B (en) * | 2021-04-30 | 2021-12-14 | 广西北投交通养护科技集团有限公司 | Opposite-pulling combined device for bridge tower inclined support and construction method |
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