CN203403362U - Pretensioned prestressed pedestal - Google Patents
Pretensioned prestressed pedestal Download PDFInfo
- Publication number
- CN203403362U CN203403362U CN201320339055.6U CN201320339055U CN203403362U CN 203403362 U CN203403362 U CN 203403362U CN 201320339055 U CN201320339055 U CN 201320339055U CN 203403362 U CN203403362 U CN 203403362U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- board
- mainboard
- construction
- vertically fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a pretensioned prestressed pedestal belonging to the bridge construction field, which comprises a top board, an external fastener, two vertical boards, a transverse board, four mask steel boards and a bottom board. The two vertical boards are vertically fixed on the two ends of the bottom board respectively. The top board and the transverse board are orderly arranged parallel to each other in an up-and-down manner. The four mask steel boards are respectively fixed on the two ends of the two vertical boards. The middle parts of the two vertical boards are provided with rib piercing grooves correspondingly. The external fastener is composed of a main board, a base and a supporting board. The main board is vertically fixed on one side of the base. The supporting board is vertically fixed at the middle part of the main board. The main board is provided with a rib piercing hole. The upper end surface of the supporting plate is provided with a downward corrugated groove. According to the technical scheme of the utility model, the entire body of the pedestal is made from steel boards and can be lifted to a construction site at any time according to construction needs. Meanwhile, the pretensioned prestressed pedestal has the advantages of large flexural rigidity, simple structure, low cost and high positioning accuracy, and can be applied to the construction of large-span bridges. By means of the pedestal, the construction is convenient in operation.
Description
Technical field
The utility model belongs to bridge construction field, specifically, relates to a kind of pretensioned prestressing pedestal.
Background technology
Prestressed concrete is divided into pre-tensioning system and post stretching by its tension construction technology difference, and pre-tensioning system is pretensioning muscle, concreting then, and stretching force during pre-tensioning system stretch-draw is born by pedestal, therefore needs a whole set of equipment such as stretching bed seat.As adopt posttension technique concrete beam must adopt cast-in-place mode to construct, its cost is higher, complex process; As adopt pre-tensioning system produce in factory, because weight is large, hoisting transportation is difficult, node connects complicated, poor seismic behavior; And ordinary steel-concrete compound beam is in order to meet intensity and amount of deflection requirement, caused the consumption of H steel large, high cost shortcoming.At present, Pretensioned prestressing stretch-drawing pedestal generally adopts gravity pillar type structure, by concrete load pier, crossbeam and table top etc., formed, the pedestal of this structure is fixed, be to be formed by concreting, due to anti-, overturn the requirement that moves ability with antiskid, the volume ratio of concrete pedestal structure is larger, construction period is long, and one-time investment is large.For example: China Patent No. is 201110345089.1, open day is on February 15th, 2012, the patent document that a name is called prestressing force ultrahigh-performance concrete continuous box girder bridge and job practices thereof is disclosed, this Continuous Box Girder Bridge comprises bridge pier and ultra-high performance concrete case beam, and case beam longitudinally adopts full external prestressing system or part external prestressing system at bridge; Ultra-high performance concrete case beam is mainly comprised of top board, base plate, web and diaphragm, has the slim plate of a kind of employing in top board, base plate, web and diaphragm at least.This invention job practices adopts precast segment cantilever method, mainly comprises the following steps: the pile foundation of first constructing and bridge pier, then piece is installed No. 0 on bridge pier; Each sections at No. 0 piece bilateral symmetry cantilever case beam; Then the support method of setting up is set up end bay, and end bay closure, then midspan closing all should carry out prestressed strand stretch-draw in aforementioned each construction stage, complete construction.That the prestressing force ultrahigh-performance concrete continuous box girder bridge of this invention has advantages of is simple in structure, deadweight is lighter, can reduce box beam risk, applicable to long-span bridge construction.
But above-mentioned concrete stretch-drawing beam is concreting to be formed, irremovable, and concrete in use, can lose original design strength because elastic compression, temperature effect etc. occur crack, working environment is restricted, and it is inner that the location-plate of its fining twisted steel is fixed on case beam, if there is the problems such as wearing and tearing or stress deformation, extremely inconvenient disassembling, assembling and replacing, positioning precision is not high.
Summary of the invention
the problem that 1, will solve
For the above-mentioned problems in the prior art, the utility model provides a kind of pretensioned prestressing pedestal, and it can need handling at any time to on-the-spot according to construction, its bending rigidity is large, simple in structure, and cost is low, positioning precision is high, applicable to long-span bridge construction, and easy construction.
2, technical scheme
In order to address the above problem, the technical scheme that the utility model adopts is as follows:
A pedestal, comprises top board, also comprises external fastener, vertical plate, transverse slat, mask steel plate and base plate, and described vertical plate has two, is vertically fixed on respectively the two ends of base plate; Described top board, transverse slat be parallel placement successively from top to bottom, and is all located between two vertical plates; Described mask steel plate has four, is separately fixed at the two ends of two vertical plates; The middle part of described two vertical plates all has the corresponding muscle groove of wearing; Described external fastener comprises mainboard, base and gripper shoe, and described mainboard is vertically fixed on a side of base, and gripper shoe is vertically fixed on the middle part of mainboard; Described mainboard and gripper shoe be arranged in parallel; On described mainboard, have and wear muscle hole; The upper surface of described gripper shoe has downward corrugation grooves; Described corrugation grooves is connected to form successively by semicircle, the shape of semicircle, radius and to wear shape, the radius of muscle hole lower half circle identical; Described mainboard is fixed on the middle part of vertical plate, on it wear muscle hole and vertical plate middle part wear the corresponding connection of muscle groove.
Further, in the cavity between described top board and transverse slat, be also provided with stiffener.
Further, described external fastener has two, and the quantity of wearing muscle hole in each external fastener is 18.
3, beneficial effect
Than prior art, the beneficial effects of the utility model are:
(1) the utility model comprises external fastener, vertical plate, transverse slat, mask steel plate and base plate, all can be by being welded to connect between each parts, can need handling at any time to on-the-spot according to construction, its bending rigidity is large, simple in structure, positioning precision is high, applicable to long-span bridge construction, and easy construction;
(2) in the cavity between top board of the present utility model and transverse slat, be also provided with stiffener, improved whole flexural strength, avoid deforming in stretching process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of external fastener of the present utility model.
In figure: 1, mainboard; 2, base; 3, gripper shoe; 4, wear muscle hole; 5, top board; 6, external fastener; 7, vertical plate; 8, transverse slat; 9, mask steel plate; 10, base plate; 11, stiffener.
The specific embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in detail.
As shown in Figure 1 and Figure 2, a kind of pretensioned prestressing pedestal, comprises top board 5, also comprises external fastener 6, vertical plate 7, transverse slat 8, mask steel plate 9 and base plate 10, and vertical plate 7 has two, is vertically fixed on respectively the two ends of base plate 10; Top board 5, transverse slat 8 be parallel placement successively from top to bottom, and is all located between two vertical plates 7; Mask steel plate 9 has four, is separately fixed at the two ends of two vertical plates 7; The middle part of two vertical plates 7 all has the corresponding muscle groove of wearing; External fastener 6 comprises mainboard 1, base 2 and gripper shoe 3, and mainboard 1 is vertically fixed on a side of base 2, and gripper shoe 3 is vertically fixed on the middle part of mainboard 1; Mainboard 1 and gripper shoe 3 be arranged in parallel; On mainboard 1, have and wear muscle hole 4; The upper surface of gripper shoe 3 has downward corrugation grooves; Corrugation grooves by semicircle, connected to form successively, the shape of semicircle, radius and to wear shape, the radius of muscle hole 4 lower half circle identical; Mainboard 1 is fixed on the middle part of vertical plate 7, on it wear muscle hole 4 and vertical plate 7 middle parts wear the corresponding connection of muscle groove.
In cavity between top board 5 and transverse slat 8, be also provided with stiffener 11; External fastener 6 has two, and the quantity of wearing muscle hole 4 in each external fastener 6 is 18.
During use, with hanging device, straddle truck or mobile crane, handling is to operating position; Rear cleaning table top, by external fastener 6 Site Weldings on vertical plate 7; Arrange again several sections of fining twisted steels and through wearing muscle groove on girder steel vertical plate 7, at the other end of girder steel, be connected anchoring with steel strand, then apply pulling force with jack pair fining twisted steel, construct.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (3)
1. a pretensioned prestressing pedestal, comprise top board (5), it is characterized in that: also comprise external fastener (6), vertical plate (7), transverse slat (8), mask steel plate (9) and base plate (10), described vertical plate (7) has two, is vertically fixed on respectively the two ends of base plate (10); The from top to bottom parallel placement successively of described top board (5), transverse slat (8), and be all located between two vertical plates (7); Described mask steel plate (9) has four, is separately fixed at the two ends of two vertical plates (7); The middle part of described two vertical plates (7) all has the corresponding muscle groove of wearing; Described external fastener (6) comprises mainboard (1), base (2) and gripper shoe (3), and described mainboard (1) is vertically fixed on a side of base (2), and gripper shoe (3) is vertically fixed on the middle part of mainboard (1); Described mainboard (1) and gripper shoe (3) be arranged in parallel; On described mainboard (1), have and wear muscle hole (4); The upper surface of described gripper shoe (3) has downward corrugation grooves; Described corrugation grooves is connected to form successively by semicircle, the shape of semicircle, radius and to wear shape, the radius of muscle hole (4) lower half circle identical; Described mainboard (1) is fixed on the middle part of vertical plate (7), on it wear muscle hole (4) and vertical plate (7) middle part wear the corresponding connection of muscle groove.
2. a kind of pretensioned prestressing pedestal according to claim 1, is characterized in that: in the cavity between described top board (5) and transverse slat (8), be also provided with stiffener (11).
3. according to a kind of pretensioned prestressing pedestal described in claim 1 or 2, it is characterized in that: described external fastener (6) has two, the quantity of wearing muscle hole (4) in each external fastener (6) is 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320339055.6U CN203403362U (en) | 2013-06-14 | 2013-06-14 | Pretensioned prestressed pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320339055.6U CN203403362U (en) | 2013-06-14 | 2013-06-14 | Pretensioned prestressed pedestal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403362U true CN203403362U (en) | 2014-01-22 |
Family
ID=49939300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320339055.6U Expired - Fee Related CN203403362U (en) | 2013-06-14 | 2013-06-14 | Pretensioned prestressed pedestal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203403362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267694A (en) * | 2020-10-16 | 2021-01-26 | 五冶集团上海有限公司 | Manufacturing method of positioning device for batch tensioning of steel strands of pre-tensioned precast beam |
| CN113802773A (en) * | 2021-09-13 | 2021-12-17 | 中国一冶集团有限公司 | Construction method of large-diameter slow-bonding prestressed tendon in large-span member |
-
2013
- 2013-06-14 CN CN201320339055.6U patent/CN203403362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267694A (en) * | 2020-10-16 | 2021-01-26 | 五冶集团上海有限公司 | Manufacturing method of positioning device for batch tensioning of steel strands of pre-tensioned precast beam |
| CN113802773A (en) * | 2021-09-13 | 2021-12-17 | 中国一冶集团有限公司 | Construction method of large-diameter slow-bonding prestressed tendon in large-span member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162774B (en) | Steel-structure distribution-girder-type double-track whole opening box girder static load test device and construction method thereof | |
| CN203546626U (en) | Suspender replacing device for concrete-filled steel tube arch bridge | |
| CN101775775B (en) | Combined bridge with self-anti-cracking function and construction method thereof | |
| CN102704406B (en) | Roadbed slab non-tensile stress construction method based on combined channel girder | |
| CN103452039B (en) | Cast-in-situs type Inverted T beam and bridge pier and Bridge Pier Construction technique thereof | |
| CN203923924U (en) | No. 0 section bracket prepressing device | |
| CN102587286A (en) | Simply supported-continuous construction method for bridge superstructure | |
| CN102021889A (en) | Bridge erection method | |
| CN102322025B (en) | Pre-stressing reinforced and widened bridge structure | |
| CN102966050A (en) | Longitudinal connection method for steel-concrete combined beam and existing reinforced concrete T beam | |
| CN103981803A (en) | Prefabricated assembled combination type door-shaped pillar and construction method thereof | |
| CN204112242U (en) | A kind of Concrete Filled Steel-tube Truss Arch Bridge suspender replacement special tool boom system | |
| CN103572703A (en) | Construction method of outer wrapped concrete obliquely pulling and buckling and ring and section dividing combination method | |
| CN201850508U (en) | Non-strut bridge pier template | |
| CN203403362U (en) | Pretensioned prestressed pedestal | |
| CN102866057B (en) | Loading device for pulling tests of steel-concrete mixed connection and production method | |
| CN105220792A (en) | A kind of prefabricated concealed bracings energy-consuming shear wall and assemble method thereof | |
| CN201942994U (en) | Bridge bearing pad | |
| CN201746781U (en) | Diagonal draw type bracket for cast-in-place of continuous beam | |
| CN102750856B (en) | Experiment model for continuous beam | |
| CN201110804Y (en) | Multifunctional experimental bench | |
| CN102877657B (en) | Large-span H-shaped plane composite structure beam string upper-air cable replacement construction method | |
| CN102286930A (en) | Construction method of cable-stayed bridge | |
| CN103266718A (en) | Prestress tension steel beam | |
| CN203640155U (en) | Truss concrete superposed beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20140614 |
|
| EXPY | Termination of patent right or utility model |