CN111379227A - Variable-width platform device for hydraulic creeping formwork for quickly constructing double-limb cable tower and construction method - Google Patents

Abstract

The invention provides a widening platform device and a construction method for a hydraulic climbing formwork for rapid construction of a double-limb cable tower. A vertical guide rail is fixedly installed on the upper guide rail, a hydraulic formwork climbing device is installed on the vertical guide rail, an operation platform is fixedly installed on the top of the hydraulic formwork formwork device, and a formwork system is installed on the top of the operation platform through a lateral sliding device , the tower column on one side where the formwork system is located is connected with the formwork system on the other side of the double-limb tower column through a spacing adjustment device. This device is specially designed for large-scale construction platform devices in the case of insufficient operating space for hydraulic climbing formwork on the inner side of the cable tower column, and the hydraulic climbing formwork has no steel tie platform or the platform is not enough to ensure the safety of steel tie.

Description

A widening platform device and construction of hydraulic climbing formwork for rapid construction of double-limb cable towers method

technical field

The invention relates to a widening platform device and a construction method for a hydraulic climbing formwork for rapidly constructing a double-limb cable tower, and belongs to the field of bridge construction devices.

Background technique

At present, the construction of high pier cable towers of bridges generally adopts hydraulic climbing formwork. When the cable tower has two legs, the distance between the tower columns becomes larger or smaller. The steel bar binding platform adopts a temporary platform, which has high safety risks, long construction period and low efficacy.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a widening platform device and a construction method for the hydraulic climbing formwork for rapid construction of double-limb cable towers. Large-scale construction platform devices where the platform or platform is not sufficient to ensure the safety of steel bar binding.

In order to realize the above-mentioned technical features, the purpose of the present invention is to achieve the following: a widening platform device for hydraulic climbing formwork for rapid construction of double-limb cable towers, which includes an embedded part, and a wall attachment device is fixedly installed on the embedded part , a vertical guide rail is fixedly installed on the outer side wall of the wall attachment device, a hydraulic climbing formwork device is installed on the vertical guide rail, an operation platform is fixedly installed on the top of the hydraulic formwork climbing device, and the top of the operation platform A formwork system is installed through the lateral sliding device, and the tower column on one side where the formwork system is located is connected to the formwork system on the other side of the double-leg tower column through a spacing adjustment device.

An oblique support device is installed between the operation platform and the hydraulic climbing formwork system, and the oblique support device includes a double-ended threaded sleeve, and both ends of the double-ended threaded sleeve are respectively hinged to the operating platform and the hydraulic climbing formwork system. The threaded rods are connected by thread fit.

A steel bar binding platform is fixedly installed on the top of the hydraulic climbing formwork device, and the steel bar binding platform adopts a polygonal hollow skeleton structure, and a steel mesh is arranged outside the polygonal hollow skeleton structure.

The formwork system is supported on the top of the operating platform by a traverse device, and the traverse device adopts a track wheel mechanism.

The distance adjustment device includes a double V linkage device and multiple groups of pin hole slide rod mechanisms. Both ends of the double V linkage device are hingedly connected to both sides of the double limb tower column. One end is hinged on the tower, and the other end is connected with the formwork system on the other side of the double-limb tower through a pin.

The pin hole sliding rod mechanism includes a pin hole rod hinged on the tower column, the pin hole rod is machined with a plurality of pin holes arranged side by side, and the pin holes are fixed on the other side tower column through a bolt. The pin-rod chute is inserted and connected.

The double-V linkage device includes a double-headed T-bar, two ends of the double-headed T-bar are respectively hinged with a first connecting rod and a second connecting rod, and the other end of the first connecting rod on the same side is hinged on the double-headed T-bar. On one of the towers of the limbs, the other end of the second link located on the same side is hinged on the other of the towers of the double-limbs.

A plurality of suspension bridge devices for connecting the two tower columns are installed between the two tower columns, the suspension bridge device includes a bridge plate, and one end of the bridge plate is connected to the tower column on one side through a hinged lug plate. Hingedly connected, the top of the other end of the bridge plate is connected with a suspension bridge cable through a pull rope lifting lug, and the other end of the suspension bridge cable is connected to the tower column.

The steel bar binding platform adopts an octagonal hollow steel bar binding platform.

The method for constructing the double-limb cable tower by the widening platform device of the hydraulic climbing formwork for the rapid construction of the double-limb cable tower includes the following steps:

Step 1: Fix the wall-attaching device on the embedded part of the casted cable tower, install the vertical guide rail on the wall-attaching device, and slide the hydraulic climbing formwork device on the vertical guide rail;

Step 2: Support and install a steel bar binding platform on the top of the hydraulic climbing formwork device located on the outside of the cable tower, support and install a formwork system on the top of the hydraulic climbing formwork device located on the inside of the cable tower, and the other end of the tower column where the formwork system is located is linked through a double V linkage The device and the multi-group pin hole sliding rod mechanism are connected with the tower column of the cable tower on the other side;

Step 3: According to the distance between the towers of the double-limb towers, adjust the extension length of the sliding rod mechanism of the pin holes, so that the formwork system on both sides can match the distance between the towers to be poured on both sides, and then lock the bolts. , to achieve the fixation of the formwork system on both sides;

Step 4: After the formwork system on both sides is fixed, the suspension bridge device is put down, and then the towers on both sides are connected, and the cable tower of the pouring layer is poured;

Step 5: After the pouring layer is poured, the pylons on both sides are adjusted and moved closer to the middle of the cable pylon through the traverse device combined with the pin hole sliding rod mechanism and the double V linkage device, so as to adapt to the smaller spacing of the upper part. the double-limbed tower;

Step 6: Repeat steps 2 to 5 to complete the pouring construction of the next pouring layer of the cable tower until the entire cable tower is poured.

The present invention has the following beneficial effects:

1. For the traditional binding of steel bars, the rigid frame of the tower is used to build a platform, and the binding is slow. The present invention adopts an octagonal hollow steel bar binding platform, which is light in weight, small in wind resistance, convenient for operators to pass, can provide a safe and reliable steel bar binding environment, avoids repeated erection of temporary operating platforms, shortens construction period, and is efficient in steel bar binding construction. .

2. By adopting the combination of the pin hole sliding rod mechanism and the double V linkage device of the present invention, the stability of the platform is increased, and at the same time, it can adapt to the change of the distance between the cable towers, and then the two tower columns can be easily adjusted. The distance between the two towers can be adjusted, which solves the problem of changing the distance requirements on the inner side of the tower column, insufficient operating space for the hydraulic climbing formwork, and it is impossible to construct the two-limb tower column symmetrically at the same time, so as to prevent the application of asymmetric load on the cable tower resulting in poor tower column alignment.

3. By adding the suspension bridge device, the width of the working platform is increased, and the platform is connected into a whole, which reduces the operator's running up and down, and improves the operator's work efficiency.

4. By using the above-mentioned traverse device, it can be used to adjust the lateral position of one side of the formwork system, so as to adapt to the changing requirements of the distance between the two-leg towers.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings and embodiments.

FIG. 1 is an overall elevation layout view of the present invention.

FIG. 2 is a front view of the steel bar binding platform of the present invention.

Fig. 3 is a front view of the pin hole sliding rod mechanism of the present invention.

FIG. 4 is a front view of the double-V linkage device of the present invention.

Fig. 5 is a front view of the suspension bridge device of the present invention.

In the figure: Rebar binding platform 1, pin hole sliding rod mechanism 2, double V linkage device 3, suspension bridge device 4, formwork system 5, embedded part 6, inclined support device 7, traverse device 8, operating platform 9, attached wall Device 10, vertical guide rail 11, bottom platform 12, hydraulic climbing formwork device 13, tower column 14, cable tower 15;

pin hole rod 201, pin hole 202, pin rod chute 203;

a first connecting rod 301, a double-ended T-bar 302, and a second connecting rod 303;

Hinged lug plate 401 , bridge plate 402 , suspension bridge cable 403 , pull rope lifting lug 404 .

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

Example 1:

Referring to Figures 1-5, a widening platform device for hydraulic climbing formwork for rapid construction of double-limb cable towers includes an embedded part 6, and a wall attachment device 10 is fixedly installed on the embedded part 6. The wall attachment device 10 A vertical guide rail 11 is fixedly installed on the outer side wall of the s A formwork system 5 is installed through the lateral sliding device 8, and the tower column 14 on one side where the formwork system 5 is located is connected to the formwork system on the other side of the double-leg tower column through a spacing adjustment device. By adopting the widened platform device of the above structure, it can be used for the pouring construction of double-limb cable towers. In the specific construction process, by setting up an octagonal hollow steel bar binding platform, it solves the problem that there is no steel bar binding platform or steel bar during hydraulic climbing formwork construction. The platform is not enough to ensure the safety of the steel bar binding operation. By setting the spacing adjustment device on the hydraulic climbing form, the transformation of the conventional hydraulic climbing form is realized, which solves the requirement of changing the distance between the inner side of the tower and the column. The hydraulic climbing form has insufficient operating space. The problem of inability to construct two-limb towers symmetrically at the same time prevents the application of asymmetrical loads on the towers resulting in poor tower alignment.

Further, an oblique support device 7 is installed between the operation platform 9 and the hydraulic climbing system 13, and the oblique support device 7 includes a double-ended threaded sleeve 7, and the two ends of the double-ended threaded sleeve 7 are respectively located at The screws hinged on the operating platform 9 and the hydraulic climbing formwork system 13 are connected by thread fit. The stability and reliability of the support between the operating platform 9 and the hydraulic climbing formwork system 13 are enhanced by the above-mentioned inclined support device 7, thereby ensuring the safety of the entire platform construction.

Further, a steel bar binding platform 1 is fixedly installed on the top of the hydraulic climbing formwork device 13 , and the steel bar binding platform 1 adopts a polygonal hollow skeleton structure, and a steel mesh is arranged outside the polygonal hollow skeleton structure. The steel bar binding platform 1 with the above structure can provide a platform for binding steel bars during hydraulic climbing formwork construction, so as to ensure the safety of steel bar binding operations. In addition, because the steel mesh is hollowed out on all sides, it reduces the wind resistance at high altitude and avoids shaking due to the heightening of the hydraulic climbing formwork; additional chamfered oblique rods are added to the uprights of the main truss of the platform, which are set in an octagonal shape to ensure the bearing capacity of the platform. The ability is also convenient for operators to pass.

Further, the template system 5 is supported on the top of the operation platform 9 by a traverse device 8, and the traverse device 8 adopts a track wheel mechanism. The above-mentioned traverse device 8 can be used to adjust the installation position of the formwork system 5 so as to adapt to the change of the spacing between the towers.

Further, the distance adjusting device includes a double-V linkage device 3 and multiple groups of pin hole sliding rod mechanisms 2. Both ends of the double-V linkage device 3 are hingedly connected to both sides of the double-limb tower column, and the row One end of the pin-hole sliding rod mechanism 2 is hinged on the tower column 14, and the other end is connected to the formwork system on the other side of the double-limb column through a pin shaft. The above-mentioned distance adjusting device can be used to adjust the distance between the two towers, thereby solving the problem of changing the distance between the inner side of the tower and the tower, insufficient operating space for the hydraulic climbing form, and the inability to symmetrically construct the two towers at the same time. The application of asymmetrical loads on the tower leads to poor alignment of the tower.

Further, the pin hole sliding rod mechanism 2 includes a pin hole rod 201 hinged on the tower column 14, the pin hole rod 201 is machined with a plurality of pin holes 202 arranged side by side, and the pin holes 202 pass through the pins It is inserted and connected with the pin rod chute 203 fixed on the other side of the tower column. The above-mentioned pin hole sliding rod mechanism 2 can be used to adjust the spacing. During the specific working process, the spacing can be changed by adjusting the position of the pin hole rod 201 on the pin rod chute 203, and after the adjustment is completed, the Both are locked with a latch.

Further, the double-V linkage device 3 includes a double-headed T-bar 302, two ends of the double-headed T-bar 302 are hinged with a first link 301 and a second link 303 respectively, and the first link 301 and the second link 303 on the same side. The other end of the connecting rod 301 is hinged to one of the towers 14 of the double-limb tower, and the other end of the second connecting rod 303 located on the same side is hinged to the other tower 14 of the double-limb tower. The above-mentioned double V linkage device 3 can adapt to the change of the distance between the two, and by adopting the inclined support, the connection strength and stability of the two are enhanced.

Further, a plurality of suspension bridge devices 4 for connecting the two tower columns are installed between the two tower columns 14 of the double-limb column. The suspension bridge device 4 includes a bridge plate 402, and one end of the bridge plate 402 is hinged. The lug plate 401 is hingedly connected to the tower column 14 on one side, and the top of the other end of the bridge plate 402 is connected with a suspension bridge cable 403 through a pull rope lug 404 , and the other end of the suspension bridge cable 403 is connected to the tower column 14 . Through the above-mentioned suspension bridge device 4, the tower columns on both sides can be connected, thereby forming a connected work platform.

Further, the steel bar binding platform 1 adopts an octagonal hollow steel bar binding platform.

Example 2:

The method for constructing the double-limb cable tower by the widening platform device of the hydraulic climbing formwork for the rapid construction of the double-limb cable tower includes the following steps:

Step 1, fix and install the wall attachment device 10 on the embedded part 6 on the casted cable tower 15, install the vertical guide rail 11 on the wall attachment device 10, and slide the hydraulic climbing formwork device 13 on the vertical guide rail 11;

Step 2, support and install the steel bar binding platform 1 on the top of the hydraulic climbing formwork device 13 located outside the cable tower 15, support and install the formwork system 5 on the top of the hydraulic climbing formwork device 13 located inside the cable tower 15, and the tower column where the formwork system 5 is located The other end of 14 is connected with the tower column 14 of the other side of the cable tower 15 through the double V linkage 3 and multiple groups of pin hole sliding rod mechanisms 2;

Step 3, according to the spacing between the towers 15 of the double-limb towers, adjust the extension length of the pin hole sliding rod mechanism 2, so that the formwork systems 5 on both sides can be respectively matched with the spacing of the towers 15 to be poured on both sides, Then lock the latch to realize the fixation of the formwork system 5 on both sides;

Step 4, after the fixing of the formwork system 5 on both sides is completed, the suspension bridge device 4 is put down, and then the tower columns 14 on both sides are connected, and the cable tower 15 of this pouring layer is poured and constructed;

Step 5: After the pouring layer is poured, the pylons 14 on both sides are adjusted and moved closer to the middle of the cable pylon 15 through the traverse device 8 and in conjunction with the pin hole sliding rod mechanism 2 and the double V linkage device 3, so that the Adapt to double-limb cable towers with smaller upper spacing;

Step 6: Repeat steps 2 to 5 to complete the pouring construction of the next pouring layer of the cable tower 15 until the entire cable tower 15 is poured.

The working principle of the present invention is:

1. By setting the steel mesh on the upper platform of the hydraulic climbing formwork device 13, an octagonal hollow steel bar binding platform is formed, which solves the problem that there is no steel bar binding platform or the steel bar platform is not enough to ensure the safety of the steel bar binding operation during the construction of the hydraulic climbing formwork.

2. By setting the pin hole slide bar mechanism 2 and double V linkage device 3 on the hydraulic climbing formwork, the double-limb tower column climbing formwork platform is connected, and the distance between the climbing molds is changing. The latch is locked to increase the stability of the hydraulic climbing formwork.

3. By setting the suspension bridge device 4 in the middle, it is convenient for people to pass through the double-limb tower column, so that the operation platform becomes a whole.

Claims (10)

1. The utility model provides a widen platform device of hydraulic climbing formwork of quick construction double limb cable tower which characterized in that: it is including burying piece (6), it has attaches wall device (10) to bury fixed mounting on piece (6), fixed mounting has vertical guide rail (11) on the lateral wall of attaching wall device (10), install hydraulic pressure creeping formwork device (13) on vertical guide rail (11), the top fixed mounting of hydraulic pressure creeping formwork device (13) has operation platform (9), formwork system (5) are installed through horizontal sliding device (8) in the top of operation platform (9), it links to each other with the formwork system of bipinn pylon opposite side through interval adjusting device on pylon (14) of one side of formwork system (5) place.

2. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: install diagonal bracing device (7) between operation platform (9) and hydraulic pressure creeping formwork system (13), diagonal bracing device (7) include double thread sleeve (7), the both ends of double thread sleeve (7) link to each other through the screw-thread fit in the screw rod that articulates on operation platform (9) and hydraulic pressure creeping formwork system (13) respectively.

3. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: the hydraulic climbing formwork device is characterized in that a steel bar binding platform (1) is fixedly mounted at the top of the hydraulic climbing formwork device (13), the steel bar binding platform (1) adopts a polygonal hollow framework structure, and a steel wire mesh is arranged outside the polygonal hollow framework structure.

4. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: the template system (5) is supported at the top of the operating platform (9) through a transverse moving device (8), and the transverse moving device (8) adopts a track wheel mechanism.

5. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: the spacing adjusting device comprises a double-V linkage device (3) and a plurality of groups of pin-arranging hole sliding rod mechanisms (2), two ends of the double-V linkage device (3) are respectively hinged and connected with two sides of the double-limb tower column, one end of each pin-arranging hole sliding rod mechanism (2) is hinged on the tower column (14), and the other end of each pin-arranging hole sliding rod mechanism is connected with a template system on the other side of the double-limb tower column through a pin shaft.

6. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 5, wherein: the pin hole arrangement sliding rod mechanism (2) comprises a pin hole rod (201) hinged to the tower column (14), a plurality of pin holes (202) arranged side by side are machined in the pin hole rod (201), and the pin holes (202) are connected with a pin rod sliding groove (203) fixed on the tower column on the other side in a plug-in fit mode through bolts.

7. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 5, wherein: two V aggregate unit (3) include double-end T type pole (302), the both ends of double-end T type pole (302) articulate respectively has first connecting rod (301) and second connecting rod (303), and the other end that lies in first connecting rod (301) with one side articulates on one of them pylon (14) of two limbs pylon, and the other end that lies in second connecting rod (303) with one side articulates on another pylon (14) of two limbs pylon.

8. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: install between two pylons (14) of two limbs pylon and be used for a plurality of draw bridge devices (4) with both intercommunications, draw bridge device (4) include bridge plate (402), the one end of bridge plate (402) is articulated continuous with pylon (14) of one side through articulated otic placode (401), the other end top of bridge plate (402) is connected with draw bridge cable (403) through stay cord lug (404), the other end of draw bridge cable (403) is connected on pylon (14).

9. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 3, wherein: the steel bar binding platform (1) is an octagonal hollow steel bar binding platform.

10. The method for constructing the double-limb cable tower by adopting the widened platform device of the hydraulic creeping formwork for the rapid construction of the double-limb cable tower as claimed in any one of claims 1 to 9 is characterized by comprising the following steps:

firstly, fixedly mounting a wall attachment device (10) on an embedded part (6) on a poured cable tower (15), mounting a vertical guide rail (11) on the wall attachment device (10), and sliding and matching a hydraulic climbing formwork device (13) on the vertical guide rail (11);

secondly, supporting and installing a reinforcement binding platform (1) at the top of a hydraulic climbing formwork device (13) positioned on the outer side of a cable tower (15), supporting and installing a template system (5) at the top of the hydraulic climbing formwork device (13) positioned on the inner side of the cable tower (15), and connecting the other end of a tower column (14) where the template system (5) is positioned with the tower column (14) of the cable tower (15) on the other side through a double-V linkage device (3) and a plurality of groups of pin hole sliding rod mechanisms (2);

thirdly, adjusting the extension length of the pin hole arrangement sliding rod mechanism (2) according to the distance between cable towers (15) of the double-limb tower column, so that the template systems (5) on the two sides can be respectively matched with the distance between the cable towers (15) to be poured on the two sides, and then locking the bolts to fix the template systems (5) on the two sides;

step four, after the formwork systems (5) on the two sides are fixed, the suspension bridge device (4) is put down, the tower columns (14) on the two sides are communicated, and the cable tower (15) on the pouring layer is poured;

after the pouring of the pouring layer is finished, the tower columns (14) on the two sides are adjusted and closed to the middle part of the cable tower (15) through the transverse moving device (8) and the pin hole arrangement sliding rod mechanism (2) and the double-V linkage device (3) in a matched mode, and the cable tower is suitable for the double-limb cable tower with the smaller upper space;

and step six, repeating the step two to the step five to complete the pouring construction of the next pouring layer of the cable tower (15) until the pouring of the whole cable tower (15) is completed.

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