CN217203671U - Simple sliding plate for ejecting and dismantling old frame bridge - Google Patents
Simple sliding plate for ejecting and dismantling old frame bridge Download PDFInfo
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- CN217203671U CN217203671U CN202220527664.3U CN202220527664U CN217203671U CN 217203671 U CN217203671 U CN 217203671U CN 202220527664 U CN202220527664 U CN 202220527664U CN 217203671 U CN217203671 U CN 217203671U
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Abstract
The utility model discloses a simple slide plate for ejecting and detaching an old frame bridge, which belongs to the technical field of civil engineering and comprises a pressed I-shaped steel, a guiding I-shaped steel, a positioning I-shaped steel and a stress diffusion plate; the stress diffusion plates are laid on the surface of a soil layer within the ejection stroke range of the old frame bridge, and the stressed I-beams are arranged on the stress diffusion plates in order; guide H-beams are arranged on two sides of the orderly arranged stressed H-beams; the positioning I-beam is arranged at the front ends of the pressed I-beam and the guide I-beam and props against the pressed I-beam and the guide I-beam; the components are connected into a whole by bolts or welding. The utility model can effectively restrain and control the elevation and the axis in the ejection process of the old frame bridge, and improves the construction safety; in the process of ejecting the old frame bridge, the frame bridge is only contacted with the side surface of the pressed I-shaped steel wing plate, so that the friction force is very small, and the construction time is short; the simple sliding plate is composed of a steel plate and I-shaped steel, is convenient to assemble and disassemble, can be repeatedly used, and is low in comprehensive cost.
Description
The technical field is as follows:
the utility model relates to a civil engineering technical field especially relates to a simple and easy slide that is used for ejecting demolishment of old frame bridge.
The background art comprises the following steps:
when the old frame bridge below the railway operation line is dismantled, if conditions allow, a direct ejection construction method can be adopted, the construction time is short, space is timely vacated for the subsequent ejection of a new frame bridge, and the influence on the railway operation line is greatly reduced.
In general, when an old frame bridge is ejected out for construction, an original pavement structure in an influence range is firstly broken, an original roadbed in the advancing direction of the frame bridge is excavated to the position below a bottom plate of the frame bridge, and when a subsequent frame bridge is ejected out, the frame bridge slides forwards along an original roadbed soil layer until the whole frame bridge is ejected out of a railway safety range. It can be seen that in the stroke range of the old frame bridge ejection, the sliding plate is not built in view of the consideration of time and cost. The reinforced concrete sliding plate is only built in a jacking working pit of the new frame bridge and is mainly used as a prefabricated platform of the new frame bridge.
However, when the old frame bridge is directly ejected and slides on the original road foundation soil layer, the following limitations exist:
(1) the original pavement is broken and excavated, so that the surface of a soil body is uneven, elevations of different positions of a subsequent old frame bridge can be changed when the old frame bridge slides on the uneven surface of the soil body, the old frame bridge can be partially raised, and if the old frame bridge collides with an upper railway track, the safety of the upper operation railway is influenced.
(2) When the old frame bridge slides on the surface of an uneven soil body, the directivity of the old frame bridge is difficult to control, and if the axis deviates, the old frame bridge scrapes the soil body on one side of the railway roadbed, the old frame bridge can also induce construction risks;
(3) when the old frame bridge slides on the surface of an uneven soil body, the friction force is large, so that more jacking equipment needs to be configured behind the old frame bridge, the jacking construction time is long, and the construction cost is increased;
(4) if the traditional concrete sliding plate is built in the ejection stroke range of the old frame bridge, on one hand, the time consumption is long (the final setting of concrete needs time), on the other hand, the traditional concrete sliding plate can only be used as a temporary sliding rail of the old frame bridge, other functions are not needed, the traditional concrete sliding plate is required to be dismantled subsequently, the comprehensive cost is high, and the traditional concrete sliding plate can obviously not be the first choice of a construction method.
Therefore, there is a need for a simple and practical slide plate for ejecting and removing old frame bridges.
The utility model has the following contents:
in order to compensate prior art's defect, the utility model aims at providing a simple and easy slide that is used for ejecting demolishs of old frame bridge, it comprises I-steel and steel sheet, and convenient for material collection can be quick, the installation of the interim slide of safe realization with demolish, repeatedly usable reaches reduction of erection time, practices thrift the purpose of cost.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
a simple sliding plate for ejecting and detaching an old frame bridge is characterized by comprising a stress diffusion plate, a pressed I-shaped steel, a guide I-shaped steel and a positioning I-shaped steel, wherein the stress diffusion plate is paved in front of the ejection of the old frame bridge;
the stress diffusion plate is paved on the surface of a soil layer within the ejection stroke range of the old frame bridge; a pressed I-steel extending into the lower part of the old frame bridge bottom plate is placed above the stress diffusion plate, and the top of the pressed I-steel is lower than the bottom surface of the old frame bridge bottom plate; the two sides of the stressed I-steel are provided with guide I-steel, and the top of the guide I-steel is higher than the bottom surface of the old frame bridge bottom plate; the stress diffusion plate, the pressed I-steel, the guiding I-steel and the positioning I-steel are fixed to form a whole.
A simple and easy slide for ejecting demolishment of old frame bridge, its characterized in that: and a broken stone cushion layer is laid below the stress diffusion plate and leveled.
A simple and easy slide for old frame bridge ejecting demolish, its characterized in that: the stress diffusion plates are arranged in a plurality of blocks, are perpendicular to the ejection direction of the old frame bridge and are arranged at intervals or tightly.
A simple and easy slide for old frame bridge ejecting demolish, its characterized in that: the stressed I-beams are distributed along the ejection direction of the old frame bridge and are laid at intervals or tightly.
A simple and easy slide for old frame bridge ejecting demolish, its characterized in that: the horizontal distance between the inner side of the guide I-steel and the outer wall of the old frame bridge ranges from 5 cm to 10 cm.
A simple and easy slide for old frame bridge ejecting demolish, its characterized in that: the length of the end part of the stressed I-shaped steel extending into the lower part of the old frame bridge bottom plate is not less than 0.5 m.
A simple and easy slide for ejecting demolishment of old frame bridge, its characterized in that: the bearing plate is laid between the bottom surface of the old frame bridge and the top surface of the pressed I-steel, and two ends of the bearing plate are buckled on the inner sides of the two sides of the guide I-steel.
A simple and easy slide for old frame bridge ejecting demolish, its characterized in that: the stress diffusion plate and the bearing plate are both steel plates, and before the old frame bridge is ejected out, a lubricant is smeared on the surface of the pressed I-steel, which is upward and contacted with the bearing plate.
The utility model has the advantages that:
1. the utility model can effectively restrain and control the elevation and the axis of the old frame bridge in the ejection process, ensure the old frame bridge to accurately slide on the preset track, and improve the safety of dismantling the old frame bridge below the railway operation line;
2. in the ejection process of the old frame bridge, the frame bridge is only contacted with the side surface of the pressed I-shaped steel wing plate, the contact area is very small, the friction force is very small, the finally required jacking force is small, and the construction time is short;
3. the utility model discloses constitute by steel sheet and I-steel, the product is ripe, and the material selection is convenient, and the equipment is convenient with the dismantlement, repeatedly usable, and the combined cost is lower.
Description of the drawings:
fig. 1 is a front view of the present invention.
Fig. 2 is a schematic view of the rear view angle installation of the present invention.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a transverse cross-sectional view of the present invention.
Fig. 5 is a longitudinal sectional view of the present invention.
Description of the reference numerals: 1. bridging the old frame; 2. pressing the I-steel; 3. guiding the I-shaped steel; 4. positioning the I-shaped steel; 5. a stress diffusion plate; 6. a bearing plate; 7. a gravel cushion layer; A. and (4) the ground.
The specific implementation mode is as follows:
the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention:
a simple sliding plate for ejecting and dismantling an old frame bridge comprises a compression I-shaped steel 2, a guide I-shaped steel 3, a positioning I-shaped steel 4 and a stress diffusion plate 5; the stress diffusion plate 5 is laid on the surface of a soil layer within the ejection stroke range of the old frame bridge, the plurality of pressed I-beams 2 are arranged on the stress diffusion plate 5 in order, and the tops of the pressed I-beams 2 are slightly lower than the bottom surface of the bottom plate of the old frame bridge 1; the two sides of the orderly arranged stressed I-beams 2 are provided with guide I-beams 3, and the tops of the guide I-beams 3 are higher than the bottom surface of the bottom plate of the old frame bridge 1; the horizontal distance between the inner sides of the two side guide I-beams 3 and the outer wall of the old frame bridge 1 ranges from 5 cm to 10 cm; the positioning I-steel 4 is arranged at the front ends of the pressed I-steel 2 and the guiding I-steel 3 and props against the pressed I-steel 2 and the guiding I-steel 3, and the positioning I-steel 4 can prevent the pressed I-steel 2 and the guiding I-steel 3 from moving along the ejection direction of the old frame bridge 1 under the assistance of other conventional auxiliary measures; the compression I-shaped steel 2, the guide I-shaped steel 3, the positioning I-shaped steel 4 and the stress diffusion plate 5 are connected into a whole by bolts or welding.
The above mentioned "other conventional auxiliary means" includes that the large-sized block stone is abutted against the positioning i-beam 4, the large-sized construction machinery (excavator, bulldozer, etc.) is abutted against the positioning i-beam 4, the large truck tire is abutted against the positioning i-beam 4, the stacked building materials are abutted against the positioning i-beam 4, etc., so that the positioning i-beam 4 does not move under the thrust action of the ejection of the old frame bridge. The method for fixing the position of the positioning I-steel 4 is more, so that the method is not always used, and can be flexibly selected and used on a construction site according to local conditions.
A plurality of the pressed I-beams 2 are arranged on the stress diffusion plate 5 in order, the width direction of the cross section of each pressed I-beam 2 is perpendicular to the stress diffusion plate 5, and the height direction of the cross section of each pressed I-beam 2 is parallel to the stress diffusion plate 5, so that the stability of the pressed I-beam 2 is highest, and the pressed I-beams are not overturned.
And guide H-beams 3 are arranged on two sides of the orderly arranged compression H-beams 2, and the tops of the guide H-beams 3 are higher than the bottom surface of the bottom plate of the old frame bridge 1. If the old frame bridge 1 deviates in the ejection process, the outer side of the old frame bridge inevitably scrapes and collides with the guide I-steel 3, and the guide I-steel 3 can restrict the deviation of the old frame bridge 1 within an allowable range.
The pressed I-steel 2, the guiding I-steel 3, the positioning I-steel 4 and the stress diffusion plate 5 are connected into a whole by bolts or welding, and the convenience of subsequent disassembly is considered during assembly. The connection mode should consider to have little influence on the material, and the subsequent used repeatedly of convenient material.
The length of the end part of the stressed I-steel 2 extending into the lower part of the bottom plate of the old frame bridge 1 is not less than 0.5m, and a bearing plate 6 is laid between the bottom surface of the old frame bridge 1 and the top surface of the stressed I-steel 2. After the old frame bridge 1 is started to eject, the front end of the old frame bridge is pressed on the bearing plate 6, and the bearing plate 6 is pressed on the pressed I-shaped steel 2. When the subsequent old frame bridge 1 continues to be ejected out, the old frame bridge 1 presses the bearing plate 6 to slide on the pressed I-steel 2, the friction force between steel materials is small, and the addition of the bearing plate 6 is beneficial to protecting the integrity of the simple sliding plate.
Paving a broken stone cushion layer 7 below the stress diffusion plate 5 and leveling; after the gravel cushion layer 7 is laid, the gravel cushion layer needs to be rolled and flattened by a machine, so that the stress diffusion plate 5 is tightly contacted with the surface of the soil body.
The stress diffusion plate 5 and the bearing plate 6 are both steel plates, and before the old frame bridge 1 is ejected out, a lubricant is coated on the upward surface of the pressed I-steel 2 in contact with the bearing plate 6; the friction resistance in the ejection process of the old frame bridge 1 can be further reduced by applying the lubricant.
The utility model discloses an installation construction method as follows:
(1) and the original road surface in the old frame bridge 1 and in a section of range in front and at the back is broken and cleaned, and the foundation soil body is exposed. The original pavement is usually asphalt pavement or cement pavement;
(2) excavating foundation soil in the ejection stroke range of the old frame bridge 1, and enabling the height of the soil surface lower than the bottom plate bottom surface of the old frame bridge 1 to be larger than the sum of the vertical heights of the stressed I-steel 2 and the stress diffusion plate 5;
(3) the excavation length of the soil body at the bottom of the front end of the excavated old frame bridge 1 is not less than 0.5m, and space preparation is provided for the end part of the subsequent pressed I-steel 2 to stretch into the lower part of the bottom plate of the old frame bridge 1;
(4) paving a gravel cushion layer 7 on the surface of the foundation soil body within the ejection stroke range of the old frame bridge 1, and rolling and flattening;
(5) laying a stress diffusion plate 5 above a foundation soil body broken stone cushion layer 7 in the ejection stroke range of the old frame bridge 1;
(6) the stress diffusion plate 5 is orderly provided with the pressed I-beams 2, and one ends of the pressed I-beams 2 extend into the lower part of the bottom plate of the old frame bridge 1 by a length not less than 0.5 m;
(7) and the two sides of the orderly arranged compression I-beams 2 are provided with guide I-beams 3, and the tops of the guide I-beams 3 are higher than the bottom surface of the bottom plate of the old frame bridge 1. The horizontal clear distance of the inner sides of the two side guide I-beams 3 is 5-10 cm larger than the width of the outer side of the old frame bridge 1;
(8) the bearing plate 6 is plugged between the bottom surface of the bottom plate of the old frame bridge 1 and the pressed I-steel 2, so that the bearing plate 6 is already arranged at the lower part of the bottom of the old frame bridge 1 before the old frame bridge 1 is ejected out; the width of the bearing plate 6 is more than 1.0m, so that about half of the bearing plate 6 is positioned outside the bottom plate of the old frame bridge 1;
(9) the positioning I-steel 4 is arranged at the front ends of the pressed I-steel 2 and the guide I-steel 3 and props against the pressed I-steel 2 and the guide I-steel 3, and the positioning I-steel 4 can prevent the pressed I-steel 2 and the guide I-steel 3 from moving along the ejection direction of the old frame bridge 1 under the assistance of other conventional auxiliary measures;
(10) the pressed I-steel 2, the guiding I-steel 3, the positioning I-steel 4 and the stress diffusion plate 5 are connected into a whole by bolts or welding, the convenience of subsequent disassembly should be considered during assembly, the influence on the material should be considered in a connection mode, and the subsequent reuse of the material is facilitated;
(11) before the old frame bridge 1 is ejected, a lubricant is smeared on the surface of the pressed I-steel 2 which faces upwards and is contacted with the bearing plate 6, and the friction resistance in the ejection process of the old frame bridge 1 can be further reduced by smearing the lubricant.
And after the subsequent old frame bridge 1 is ejected out of the railway line safety range, the concrete fragments are disassembled and broken, and the concrete fragments are cleaned, the simple sliding plate is disassembled.
Only show partial shape and the partial connected mode of the simple and easy slide of proposing in the attached drawing, according to the thinking of proposing, can change the material and select for use, the arrangement mode, or do not adopt the I-steel and adopt the structure (like the steel pipe) of other forms, form the simple and easy slide of repeatedly usable of other relevant types, it all belongs to the utility model discloses an equivalent is revised and is changed, and no longer repeated here.
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing the positional relationship in the drawings are for illustrative purposes only and are not to be construed as limiting the present invention.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and the conventional means in the field, without departing from the basic utility model idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (8)
1. A simple sliding plate for ejecting and detaching an old frame bridge is characterized by comprising a stress diffusion plate, a pressed I-shaped steel, a guide I-shaped steel and a positioning I-shaped steel, wherein the stress diffusion plate is paved in front of the ejection of the old frame bridge;
the stress diffusion plate is paved on the surface of a soil layer within the ejection stroke range of the old frame bridge; a pressed I-steel extending into the lower part of the old frame bridge bottom plate is placed above the stress diffusion plate, and the top of the pressed I-steel is lower than the bottom surface of the old frame bridge bottom plate; the two sides of the stressed I-steel are provided with guide I-steel, and the top of the guide I-steel is higher than the bottom surface of the old frame bridge bottom plate; the stress diffusion plate, the pressed I-steel, the guiding I-steel and the positioning I-steel are fixed to form a whole.
2. The simple slide plate for ejecting and dismantling an old frame bridge according to claim 1, wherein: and a broken stone cushion layer is laid below the stress diffusion plate and leveled.
3. The simple slide plate for ejecting and dismantling old frame bridges of claim 1, wherein: the stress diffusion plates are arranged in a plurality of blocks, are vertical to the ejection direction of the old frame bridge and are arranged at intervals or tightly.
4. The simple slide plate for ejecting and dismantling old frame bridges of claim 1, wherein: the stressed I-beams are distributed along the ejection direction of the old frame bridge and are laid at intervals or tightly.
5. The simple slide plate for ejecting and dismantling an old frame bridge according to claim 1, wherein: the horizontal distance between the inner side of the guide I-steel and the outer wall of the old frame bridge ranges from 5 cm to 10 cm.
6. The simple slide plate for ejecting and dismantling old frame bridges of claim 1, wherein: the length of the end part of the stressed I-shaped steel extending into the lower part of the old frame bridge bottom plate is not less than 0.5 m.
7. The simple slide plate for ejecting and dismantling old frame bridges of claim 1, wherein: the bearing plate is laid between the bottom surface of the old frame bridge and the top surface of the pressed I-steel, and two ends of the bearing plate are buckled on the inner sides of the two sides of the guide I-steel.
8. The simple slide plate for ejecting and dismantling an old framed bridge according to claim 1 or 7, wherein: the stress diffusion plate and the bearing plate are both steel plates, and before the old frame bridge is ejected out, a lubricant is smeared on the surface of the pressed I-steel, which is upward and contacted with the bearing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220527664.3U CN217203671U (en) | 2022-03-11 | 2022-03-11 | Simple sliding plate for ejecting and dismantling old frame bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220527664.3U CN217203671U (en) | 2022-03-11 | 2022-03-11 | Simple sliding plate for ejecting and dismantling old frame bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217203671U true CN217203671U (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220527664.3U Active CN217203671U (en) | 2022-03-11 | 2022-03-11 | Simple sliding plate for ejecting and dismantling old frame bridge |
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| CN (1) | CN217203671U (en) |
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- 2022-03-11 CN CN202220527664.3U patent/CN217203671U/en active Active
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