CN211141349U - Track panel well gantry crane foundation fixing structure - Google Patents

Abstract

The utility model discloses a foundation fixing structure of a rail row well gantry crane. The system comprises a continuous wall, a crown beam, an H-shaped steel cantilevered steel beam, a double-spliced H-shaped steel, a threaded steel bar, a pre-embedded steel plate, a double-spliced channel steel and a connecting steel plate. The diaphragm wall is the retaining wall structure of the main body of the subway station, and the crown beam is set on the top of the diaphragm wall; the H-shaped steel cantilever steel beam is the support structure of the rail row well gantry crane rail beam; Convenience bridge structure; triangular steel corbel support structure composed of welded connection between crown beam, H-beam cantilever steel beam and double channel steel; the top of the crown beam is embedded with a connecting steel plate, and the connecting steel plate is welded with the bottom of the H-beam cantilever steel beam connect. The technical bearing capacity of the utility model meets the operating load requirements of the gantry crane, and the cost of manpower and material machines is economically saved. In terms of safety, the overall stability is good, and risk factors such as subsidence of the foundation of the gantry foundation are avoided, and the safety guarantee is improved. a sidewalk space.

Description

A kind of rail row well gantry crane foundation fixing structure

technical field

The utility model relates to a foundation fixing structure of a rail row well gantry crane, which belongs to the technical field of urban rail transit construction.

Background technique

With the development of social economy, the existing urban traffic becomes more and more crowded, and the traditional ground transportation can no longer meet the travel mode of modern people. Urban rail transit comes into being. The construction of rail transit generally has the following features: mostly in the city center, surrounding The complex environment and the narrow site have brought great disadvantages to the construction.

In order to facilitate subway construction, the method of arranging gantry cranes above the foundation pit of the subway station is adopted, which not only saves space but also facilitates construction.

Utility model content

The purpose of this utility model is to design a foundation fixing structure of a rail row well gantry crane. The fixed installation structure designed by the utility model is beneficial to site planning, reduces the clear span of gantry cranes, and has a higher safety factor for gantry cranes of the same model; The high utilization rate of the site is conducive to the construction organization and provides a strong guarantee for the hoisting and transportation of the main structure of the subway station.

In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is a foundation fixed structure of a rail row well gantry crane. The system includes a continuous wall 1, a crown beam 2, an H-shaped steel cantilevered steel beam 3, a double-joint H-shaped steel 4, and a threaded steel bar. 5. Pre-embedded steel plate 6, double channel steel 7 and connecting steel plate 8; the diaphragm wall 1 is the retaining wall structure of the main body of the subway station, and the crown beam 2 is set on the top of the diaphragm wall 1;

The H-shaped steel cantilevered steel beams 3 are the supporting structures of the rail-row well gantry crane rail beams, and the H-shaped steel cantilevered steel beams 3 are connected by bolts to form the supporting main structure of the rail-row well gantry crane rail beams;

The double-spliced H-beam 4 is a steel bridge structure of the rail row gantry crane rail beam. The double-spliced H-beam 4 is welded on the H-beam cantilever beam 3, and one end of the H-beam cantilever beam 3 penetrates into the continuous wall 1; H The other end of the section steel cantilever beam 3 is the cantilever part, and the bottom of the cantilever section is welded with a double-joint channel steel 7, and the bottom of the double-joint channel steel 7 is inserted into the crown beam 2, the crown beam 2, the H-section steel cantilever steel beam 3 and The triangular-shaped steel corbel support structure composed of welded connection between the double channel steels 7;

The crown beam 2 is preset with threaded steel bars 5 and pre-embedded steel plates 6 , and the pre-embedded steel plates 6 are arranged in parallel along the length direction of the crown beam 2 .

The top of the crown beam 2 is pre-embedded with a connecting steel plate 8 , and the connecting steel plate 8 is welded and connected to the bottom of the H-shaped steel cantilevered steel beam 3 .

Compared with the prior art, the technical bearing capacity of the utility model satisfies the operating load requirements of the gantry crane, the cost of labor and material machines is saved economically, and the overall stability is good in terms of safety, and risk factors such as subsidence of the foundation of the gantry foundation are avoided. , The safety and security are improved, the construction period is guaranteed, the space of the access road is saved, and the convenience of subsequent construction is provided.

Description of drawings

Fig. 1 is the schematic diagram of the fixed structure of the rail row well gantry crane foundation;

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

As shown in Figure 1, a rail row well gantry crane foundation fixing structure, the system includes a diaphragm wall 1, a crown beam 2, an H-shaped steel cantilevered steel beam 3, a double-joint H-shaped steel 4, a threaded steel bar 5, an embedded steel plate 6, The double-joint channel steel 7 and the connecting steel plate 8; the diaphragm wall 1 is the retaining wall structure of the main body of the subway station, and the crown beam 2 is arranged on the top of the diaphragm wall 1;

The H-shaped steel cantilevered steel beams 3 are the supporting structures of the rail-row well gantry crane rail beams, and the H-shaped steel cantilevered steel beams 3 are connected by bolts to form the supporting main structure of the rail-row well gantry crane rail beams;

The double-spliced H-beam 4 is a steel bridge structure of the rail row gantry crane rail beam. The double-spliced H-beam 4 is welded on the H-beam cantilever beam 3, and one end of the H-beam cantilever beam 3 penetrates into the continuous wall 1; H The other end of the section steel cantilever beam 3 is the cantilever part, and the bottom of the cantilever section is welded with a double-joint channel steel 7, and the bottom of the double-joint channel steel 7 is inserted into the crown beam 2, the crown beam 2, the H-section steel cantilever steel beam 3 and The triangular-shaped steel corbel support structure composed of welded connection between the double channel steels 7;

The crown beam 2 is preset with threaded steel bars 5 and pre-embedded steel plates 6 , and the pre-embedded steel plates 6 are arranged in parallel along the length direction of the crown beam 2 .

The top of the crown beam 2 is pre-embedded with a connecting steel plate 8 , and the connecting steel plate 8 is welded and connected to the bottom of the H-shaped steel cantilevered steel beam 3 .

Example

The steel bridge is made of double-joint H-beam 4. The size of the double-joint H-beam 4 is 700×300 H-beam, and 10mm thick steel plates are set between the two sides of the double-joint H-beam 4 for welding reinforcement. The steel plate spacing is 1000mm , staggered arrangement; 5 H-shaped steel cantilevered steel beams 3 are set under the track beam, the size of H-shaped steel cantilevered steel beam 3 is 600 × 300, and a double-spliced channel steel 7 is installed at the lower part of the cantilever and welded to form a triangle-shaped steel corbel support ; In the crown beam 2, a 0.6×0.15×0.01m embedded steel plate 6 is set every 0.5m. Set 120×90×60cm reinforced concrete piers on both sides, and during the crown beam construction, a 90×80×1cm connecting steel plate 8 is embedded at the top, and the connecting steel plate 8 is welded with the bottom of the H-beam cantilever beam 3 .

The construction method of gantry crane foundation is arranged above the foundation pit of the subway station, which saves the use of concrete to a large extent, and makes full use of the existing retaining wall. Arrange and save resources.

The construction method of gantry crane foundation arranged above the foundation pit is adopted, and the construction method of the gantry crane track foundation specially built on both sides of the foundation pit is compared. The economic comparison and analysis are as follows:

From the above comparative analysis, we can see that the material cost (concrete, steel bar) is saved by about 390,581 yuan, and the labor cost is saved by about 60,000 yuan.

The retaining wall also serves as the gantry track, which is directly carried on the crown beam, and indirectly acts on the enclosure structure. The integrity is good, and risk factors such as foundation subsidence of the gantry foundation are avoided. The span of the gantry crane is also reduced by about 1m, which ensures safety. Sex has improved. The one-time construction of the retaining wall and the gantry track foundation ensures the construction period and saves the access space on both sides of the foundation pit, which provides greater convenience for subsequent construction.

The embodiments of the present invention are described in detail above, but the present invention is not limited to the specific details in the above-mentioned embodiments, and the above examples are only used to help understand the method and idea of the present invention. Within the scope of the technical concept of the present invention, a variety of simple deformations can be made to the technical solution of the present invention, and these simple deformations all belong to the protection scope of the present invention. In conclusion, the content of this specification should not be construed as a limitation on the present invention.

Claims (1)

1. The utility model provides a track panel well portal crane basis fixed knot constructs which characterized in that: the system comprises a continuous wall (1), a crown beam (2), an H-shaped steel cantilever beam (3), double-spliced H-shaped steel (4), a twisted steel (5), a pre-embedded steel plate (6), double-spliced channel steel (7) and a connecting steel plate (8); the continuous wall (1) is a retaining wall structure of a subway station main body, and the crown beam (2) is arranged at the top of the continuous wall (1);

the H-shaped steel cantilever steel beams (3) are supporting structures of the track beam of the track panel well gantry crane, and the H-shaped steel cantilever steel beams (3) are connected through bolts to form a supporting main body structure of the track beam of the track panel well gantry crane;

the double-spliced H-shaped steel (4) is of a steel temporary bridge structure of a track beam of a track panel well gantry crane, the double-spliced H-shaped steel (4) is welded on an H-shaped steel cantilever beam (3), and one end of the H-shaped steel cantilever beam (3) extends into the continuous wall (1); the other end of the H-shaped steel cantilever steel beam (3) is an overhanging part, double-spliced channel steel (7) is welded at the bottom of the overhanging part, the bottom of the double-spliced channel steel (7) is inserted into the crown beam (2), and the crown beam (2), the H-shaped steel cantilever steel beam (3) and the double-spliced channel steel (7) are connected in a welding manner to form a triangular steel corbel supporting structure;

the threaded steel bars (5) and the embedded steel plates (6) are preset in the crown beam (2), and the embedded steel plates (6) are arranged in parallel along the length direction of the crown beam (2);

the top of the crown beam (2) is embedded with a connecting steel plate (8), and the connecting steel plate (8) is welded with the bottom of the H-shaped steel cantilever beam (3).

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