CN211420898U - Vertical positioning device for large-span corrugated steel web - Google Patents

Abstract

The utility model discloses a vertical positioning device for a large-span corrugated steel web. , the base plate and the screw top base plate are connected by a first height adjustment mechanism, the screw top base plate and the vertical positioning plate of the web are connected by a second height adjustment mechanism, and a screw top base for installing the screw top is installed on the screw top base plate The top of the vertical positioning plate of the web is provided with two limiting baffles for limiting the position of the lower flange of the corrugated steel web. The utility model fixes the corrugated steel webs by installing a vertical positioning mechanism at the bottom of the corrugated steel webs on both sides respectively, uses the first height adjustment mechanism to roughly adjust the height of the vertical positioning plate of the web, and uses the second height adjustment mechanism to fine Adjust the height of the vertical positioning plate of the web, so that the superstructure of the bridge can meet the design force, prolong the service time of the bridge, and indirectly save the construction and maintenance cost of the bridge.

Description

A vertical positioning device for large-span corrugated steel webs

technical field

The utility model belongs to the technical field of vertical positioning of large-span corrugated steel webs, in particular to a vertical positioning device for large-span corrugated steel webs.

Background technique

The corrugated steel web bridge has developed rapidly in the world because of its excellent characteristics and performance, such as clear force, high section efficiency, full use of material strength, and no web cracking. Compared with the concrete prestressed continuous rigid frame bridge, the web, roof and floor of each segment are constructed as a whole. For the prestressed concrete continuous rigid frame bridge with corrugated steel webs, the segments are constructed in two steps. Install the web first, and then carry out the work of the top and bottom plates. During the installation process of the corrugated web, the corrugated web is directly hoisted to the front end of the segment by lifting equipment, and then two inverted chains are used on the left and right sides of the top plate of the hanging basket to find a temporary fixing point to move the corrugated web. to the theoretical level. The vertical positioning of the corrugated steel web is carried out by moving up and down the inverted chain hanging on the hoisting equipment, in conjunction with the total station and the level. The lifting equipment does not end the installation work until the corrugated web is installed. During the process of anchoring, welding and vertical positioning of the corrugated web, the vertical position of the corrugated web may be affected by the swaying displacement of the lifting equipment itself, weather and other factors. The vertical position accuracy of the corrugated web is greatly reduced, and the period for adjusting the vertical position of the corrugated web is greatly increased. As a result, the project schedule and cost will be affected, and it will easily lead to changes in the stress on the superstructure of the entire bridge, thereby affecting the structural safety of the bridge and the service time of the bridge.

Utility model content

The technical problem to be solved by the present utility model is to provide a vertical positioning device for large-span corrugated steel webs, which is novel and reasonable in design. A vertical positioning mechanism fixes the corrugated steel web, uses a plurality of first height adjustment mechanisms to roughly adjust the height of the web vertical positioning plate, and uses the second height adjustment mechanism to finely adjust the height of the web vertical positioning plate. The base plate adopts magnets The principle of suction to the iron is connected with the bottom mold chassis, which is environmentally friendly and reliable, easy to process, reasonable in force, stable and easy to move, and can effectively solve the vertical position of the corrugated steel web during the installation process. The shaking of the lifting equipment itself Displacement, the left and right displacement of the hanging basket, so that the upper structure of the bridge conforms to the design force, prolongs the service time of the bridge, indirectly saves the construction and maintenance cost of the bridge, and is convenient for popularization and use.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present utility model is: a large-span corrugated steel web vertical positioning device, which is characterized in that it comprises a vertical positioning device installed on the bottom frame of the bottom mold and located at the bottom of the corrugated steel web. The first vertical positioning mechanism and the second vertical positioning mechanism located at the bottom of the corrugated steel web plate 2, the vertical positioning mechanism 1 and the vertical positioning mechanism 2 have the same structure, and the vertical positioning mechanism The base plate is arranged, the spiral top base plate and the web vertical positioning plate are arranged parallel to the base plate, the base plate and the spiral top base plate are connected by a plurality of first height adjustment mechanisms, and the spiral top base plate and the web vertical positioning plate are connected. They are connected by a second height adjustment mechanism. The first height adjustment mechanism includes a height support rod connected with the base plate and a height adjustment rod connected with the spiral top base plate and matched with the height support rod. The base plate is provided with a magnet, and the first height adjustment mechanism The second height adjustment mechanism is a screw top. The screw top base plate is installed with a screw top base for installing the screw top. The top of the screw top is connected to the bottom of the vertical positioning plate of the web. The top of the vertical positioning plate of the web is provided with two A limit stopper is used to limit the position of the lower flange of the corrugated steel web.

The above-mentioned vertical positioning device for a large-span corrugated steel web is characterized in that a plurality of magnets are arranged on the base plate.

The above-mentioned vertical positioning device for large-span corrugated steel webs is characterized in that: the bottom mold base frame is an iron formwork frame, and a plurality of magnets in the base plate are adsorbed and matched with the bottom mold base frame.

The above-mentioned vertical positioning device for a large-span corrugated steel web is characterized in that: the bottom of the helical top base plate is provided with a rod clamping groove that cooperates with the height adjustment rod, and the number of the rod clamping grooves is the same as the number of the rod clamping grooves. The number of the first height adjusting mechanisms is equal and corresponds to one another.

The above-mentioned vertical positioning device for a large-span corrugated steel web is characterized in that: the height support rod is a hollow structure, the inner side wall of the height support rod is provided with a height adjustment inner thread, and the height adjustment rod is far away from the screw. One end of the top base plate extends into the height support rod and is threadedly matched with the height support rod.

Compared with the prior art, the utility model has the following advantages:

1. The utility model fixes the corrugated steel webs by installing a vertical positioning mechanism at the bottom of the corrugated steel webs on both sides respectively. In the vertical positioning mechanism, the height of the vertical positioning plate of the web is roughly adjusted by a plurality of first height adjustment mechanisms. , Using the second height adjustment mechanism to fine-tune the height of the vertical positioning plate of the web, the two vertical positioning mechanisms independently adjust and work together and co-locate the vertical high speed of the corrugated steel webs on both sides, which is suitable for corrugated steel of various structural types. The web is easy to promote and use.

2. The first height adjustment mechanism of the present utility model roughly adjusts the height of the vertical positioning plate of the web through the cooperation of the height support rod and the height adjustment rod, and installs the screw top base plate on the adjusted first height adjustment mechanism, and installs the screw top base plate on the screw top base plate. The screw top is installed on the base of the screw top, and the second height adjustment mechanism realizes the precise adjustment of the height of the vertical positioning plate of the web by manually adjusting the screw top, and makes the vertical positioning plate of the web reach the design height in real time, which is reliable and stable, and has good use effect.

3. The design of the utility model is novel and reasonable. The base plate is used to locate the installation position of the vertical positioning mechanism, and the base plate is fixed on the iron formwork frame by using a magnet. Two limit baffles limit the lower flange of the corrugated steel web, which can effectively solve the problem that the horizontal position of the corrugated steel web is moved by the shaking displacement of the lifting equipment itself and the left and right displacement of the hanging basket during the installation process, so that the bridge can be moved. The superstructure conforms to the design force, prolongs the in-service time of the bridge, indirectly saves the construction and maintenance cost of the bridge, and is convenient for popularization and use.

To sum up, the design of the utility model is novel and reasonable. A vertical positioning mechanism is respectively installed at the bottom of the corrugated steel webs on both sides to fix the corrugated steel webs, and a plurality of first height adjustment mechanisms are used to roughly adjust the vertical positioning of the webs. The height of the plate, the second height adjustment mechanism is used to fine-tune the height of the vertical positioning plate of the web plate, the base plate is connected to the bottom mold chassis by the principle of magnet-to-iron suction, which is environmentally friendly and reliable, easy to process, reasonable in force, stable and convenient. The movement can effectively solve the vertical position of the corrugated steel web during the installation process, which is moved by the shaking displacement of the lifting equipment itself and the left and right displacement of the hanging basket, so that the upper structure of the bridge can meet the design force and prolong the service time of the bridge. , which indirectly saves the construction and maintenance costs of bridges and facilitates popularization and use.

The technical solutions of the present utility model will be described in further detail below through the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the use state diagram of the utility model.

FIG. 2 is a schematic structural diagram of the utility model.

Explanation of reference numbers:

1—Vertical positioning mechanism I; 2—Vertical positioning mechanism II; 3—Corrugated steel web I;

4—Corrugated steel web 2; 5—Bottom mold chassis; 6—Base plate;

7—magnet; 8—height support rod; 9—height adjustment rod;

10—screw top base plate; 11—screw top base; 12—screw top;

13—vertical positioning plate of the web; 14—limiting baffle.

Detailed ways

As shown in FIG. 1 and FIG. 2 , the present invention includes a vertical positioning mechanism 1 installed on the bottom mold chassis 5 and located at the bottom of the corrugated steel web 1 3 and a vertical positioning mechanism located at the bottom of the corrugated steel web 2 4 . 22. The vertical positioning mechanism 1 and the vertical positioning mechanism 22 have the same structure. The vertical positioning mechanism 1 includes a base plate 6 arranged in sequence from bottom to top and a base plate 6 arranged in parallel with the base plate 6. The spiral top base plate 10 and the web vertical positioning plate 13, the base plate 6 and the spiral top base plate 10 are connected by a plurality of first height adjustment mechanisms, and the spiral top base plate 10 and the web vertical positioning plate 13 are connected by a second height The adjustment mechanism is connected, and the first height adjustment mechanism includes a height support rod 8 connected with the base plate 6 and a height adjustment rod 9 connected with the spiral top base plate 10 and matched with the height support rod 8. The base plate 6 is provided with a magnet 7, so The second height adjustment mechanism is a screw top 12, a screw top base 11 for installing the screw top 12 is installed on the screw top base plate 10, the top of the screw top 12 is connected with the bottom of the vertical positioning plate 13 of the web, and the web is vertical. Two limiting baffles 14 for limiting the position of the lower flange of the corrugated steel web are provided to the top of the positioning plate 13 .

It should be noted that the corrugated steel webs are fixed by installing a vertical positioning mechanism at the bottom of the corrugated steel webs on both sides, and the height of the vertical positioning plate of the web is roughly adjusted by a plurality of first height adjustment mechanisms in the vertical positioning mechanism. , Using the second height adjustment mechanism to fine-tune the height of the vertical positioning plate of the web, the two vertical positioning mechanisms independently adjust and work together and co-locate the vertical high speed of the corrugated steel webs on both sides, which is suitable for corrugated steel of various structural types. Web; the first height adjustment mechanism roughly adjusts the height of the vertical positioning plate of the web through the cooperation of the height support rod 8 and the height adjustment rod 9, installs the screw top base plate 10 on the adjusted first height adjustment mechanism, and installs the screw top base plate on the adjusted first height adjustment mechanism. The screw top 12 is installed on the screw top base 11 on the 10, and the second height adjustment mechanism realizes the precise adjustment of the height of the vertical positioning plate of the web by manually adjusting the screw top 12 and makes the vertical positioning plate of the web reach the design height in real time, which is reliable and stable. ; Use the base plate 6 to locate the installation position of the vertical positioning mechanism, and use the magnet 7 to fix the base plate 6 on the iron formwork frame, which is environmentally friendly and reliable, easy to process, reasonable in force, stable and easy to move. Plate 14 limits the lower flange of the corrugated steel web, which can effectively solve the problem that the horizontal position of the corrugated steel web is moved by the shaking displacement of the lifting equipment itself and the left and right displacement of the hanging basket during the installation process, so as to make the upper structure of the bridge conform to Design stress, prolong the service time of the bridge, and indirectly save the construction and maintenance cost of the bridge.

In this embodiment, a plurality of magnets 7 are disposed on the substrate 6 .

In this embodiment, the bottom mold bottom frame 5 is an iron template frame, and the plurality of magnets 7 in the base plate 6 are adsorbed and matched with the bottom mold bottom frame 5 .

It should be noted that the substrate 6 is provided with a plurality of magnets 7 , and the plurality of magnets 7 are evenly distributed on the substrate 6 to ensure that the substrate 6 is stably mounted on the bottom mold chassis 5 .

In this embodiment, the bottom of the helical top base plate 10 is provided with a rod clip slot which is matched with the height adjustment rod 9 , and the number of the rod clip slot is equal to the number of the first height adjustment mechanism and corresponds one-to-one .

In this embodiment, the height support rod 8 is a hollow structure, the inner side wall of the height support rod 8 is provided with a height adjustment inner thread, and the end of the height adjustment rod 9 away from the spiral top base plate 10 extends into the height support rod 8 It is threaded with the height support rod 8.

When the utility model is used, the base plate 6 is used to locate the position of the vertical positioning mechanism, the base plate 6 is fixed by the adsorption force of the magnet 7 and the bottom mold bottom frame 5, and the screw top base plate is leveled by the cooperation of the height support rod 8 and the height adjustment rod 9. 10 installation foundation, then install the screw top base plate 10, so that the angle of the screw top base plate 10 meets the design requirements, install the screw top 12 in the screw top base 11, and install the web vertical positioning plate 13 on the top of the screw top 12, Manually adjust the screw top 12 to limit the lower flange of the corrugated steel web between the two limit baffles 14 on the top of the vertical positioning plate 13 of the web, which is environmentally friendly and reliable, easy to process, reasonable in force, stable and easy to move , which can effectively solve the vertical position of the corrugated steel web during the installation process, which is moved by the shaking displacement of the lifting equipment itself and the left and right displacement of the hanging basket, so that the superstructure of the bridge can meet the design stress and prolong the service time of the bridge. Indirectly save bridge construction and maintenance costs.

The above are only preferred embodiments of the present utility model, and do not limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to the scope of the present utility model. within the protection scope of the technical solution of the present invention.

Claims (5)

1. A vertical positioning device for a large-span corrugated steel web, characterized in that: it comprises a vertical positioning mechanism one (1) installed on the bottom mold chassis (5) and located at the bottom of the corrugated steel web one (3). The vertical positioning mechanism two (2) located at the bottom of the corrugated steel web plate two (4), the vertical positioning mechanism one (1) and the vertical positioning mechanism two (2) have the same structure. Positioning mechanism one (1) includes a base plate (6) arranged in sequence from bottom to top, a spiral top base plate (10) and a web vertical positioning plate (13) all arranged in parallel with the base plate (6), the base plate (6) and The spiral top substrates (10) are connected by a plurality of first height adjustment mechanisms, and the spiral top substrate (10) and the web vertical positioning plate (13) are connected by a second height adjustment mechanism, the first height adjustment The mechanism comprises a height support rod (8) connected with the base plate (6) and a height adjustment rod (9) connected with the spiral top base plate (10) and matched with the height support rod (8), the base plate (6) is provided with a magnet ( 7), the second height adjustment mechanism is a screw top (12), a screw top base (11) for installing the screw top (12) is installed on the screw top base plate (10), and the top of the screw top (12) is connected to the screw top (12). The bottom of the vertical web positioning plate (13) is connected, and the top of the vertical web positioning plate (13) is provided with two limiting baffles (14) for limiting the position of the lower flange of the corrugated steel web. 2 . The vertical positioning device for large-span corrugated steel webs according to claim 1 , wherein a plurality of magnets ( 7 ) are arranged on the base plate ( 6 ). 3 . 3. A large-span corrugated steel web vertical positioning device according to claim 2, characterized in that: the bottom formwork base (5) is an iron formwork frame, and a plurality of The magnets (7) are all adsorbed and matched with the bottom mold chassis (5). 4. A large-span corrugated steel web vertical positioning device according to claim 1, characterized in that: the bottom of the spiral top base plate (10) is provided with a rod that cooperates with the height adjustment rod (9). The number of the rod clamping grooves is equal to the number of the first height adjusting mechanism and corresponds to each other one by one. 5. A large-span corrugated steel web vertical positioning device according to claim 1, characterized in that: the height support rod (8) is a hollow structure, and the inner wall of the height support rod (8) A height adjustment inner thread is provided on the upper part, and one end of the height adjustment rod (9) away from the screw top base plate (10) extends into the height support rod (8) and is threadedly matched with the height support rod (8).

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