Temporary reinforcing and supporting structure for removing platform bridge of existing running railway

Abstract

The temporary reinforcing and supporting structure comprises a concrete strip-shaped base, concrete short columns are arranged at the two ends of the concrete strip-shaped base, and stand columns inserted into the concrete short columns are arranged on the two sides of the two concrete short columns. Outer inclined supporting columns inserted into the concrete short columns are arranged on the outer sides of the two concrete short columns, an inter-column connecting rod assembly is arranged between every two adjacent columns, and distribution beams for supporting a bridge body of the overbridge are arranged on the two columns of the concrete short columns. The distribution beam is provided with a middle supporting column supporting rod which upwards penetrates through a bridge body of the overbridge and is connected with a top cover of the overbridge. The utility model belongs to the technical field of building construction, the concrete strip-shaped base, the concrete short columns, the stand columns and the outer inclined supporting columns are arranged between the two bridge columns of the overbridge to support the overbridge, the construction time is short, the assembling speed of a steel structure is high, and the overbridge can be rapidly and effectively reinforced.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a temporary reinforcement support structure for the demolition of an overpass for an existing operating railway. Background Technology

[0002] With the rapid development of the railway industry, railway stations must also adapt to the needs of railway speed increases and undergo continuous technological upgrades. Therefore, station renovation and construction is a very important task in the fundamental construction of railways. Railway station renovation and construction usually refers to the reconstruction and expansion projects of operating lines, stations, and hubs. When constructing new elevated station buildings, the problem of demolishing existing overpasses may arise. For example, if the bridge columns of an existing overpass are very close to the beams and columns designed for the new elevated station building, the existing overpass must be completely demolished before the piling construction of the new elevated station building can begin, which significantly affects the completion time of the new elevated station building.

[0003] Therefore, there is a need for a temporary reinforcement and support structure for the demolition of overpasses on existing operating railways. This structure would temporarily reinforce and support the overpass structure, providing conditions for the demolition of the overpass pillars. This would allow for the simultaneous demolition of the overpass structure and the commencement of column and beam construction work for the elevated station building, thereby improving the construction efficiency of the elevated station building. Utility Model Content

[0004] Therefore, it is necessary to provide a temporary reinforcement support structure for the demolition of overpasses on existing operating railways, and the specific technical solution is as follows.

[0005] A temporary reinforcement support structure for the demolition of an overpass on an existing operating railway includes a concrete strip base located between two bridge columns of the overpass. Concrete strip bases have short concrete columns at both ends. Upright columns inserted into the short concrete columns are located on both sides of the short concrete columns. External diagonal bracing columns inserted into the short concrete columns are located on the outer sides of the short concrete columns. A column-to-column connecting rod assembly is located between adjacent upright columns. The top of the external diagonal bracing columns supports the bridge section of the overpass. Distribution beams supporting the bridge section of the overpass are located on the two upright columns of the short concrete columns. Intermediate support struts are located on the distribution beams, extending upwards through the bridge section of the overpass and connecting to the top cover of the overpass.

[0006] Furthermore, the outer diagonal brace column is provided with a diagonal tie rod connected to the distribution beam.

[0007] Furthermore, the bottom of the external diagonal bracing column and the upright column are integrally cast with the short concrete column, and the external diagonal bracing column and the upright column are cylindrical steel structures.

[0008] Furthermore, the column-to-column linkage assembly includes two intersecting linkages, which are fixed at their intersection by welding, and the linkages are fixed to the columns by welding.

[0009] Furthermore, the column connecting rod assembly includes an intermediate connecting seat and inclined tubes provided on the upper and lower parts on both sides of the intermediate connecting seat. The two inclined tubes located on the upper part of the intermediate connecting seat extend upward at an angle, and the two inclined tubes located on the lower part of the intermediate connecting seat extend downward at an angle. Each inclined tube is provided with a connecting rod that connects to the column.

[0010] Furthermore, the upper and lower side walls of the column are provided with inclined connecting sleeves. The connecting sleeve located at the upper part of the column extends downward at an incline, and the connecting sleeve located at the lower part of the column extends upward at an incline. The connecting rod can be connected to the connecting sleeve.

[0011] Furthermore, the connecting sleeve and the inclined pipe are provided with internal threads, and both ends of the connecting rod are provided with screw portions that are adapted to the internal threads, and the screw portions are provided with locking nuts.

[0012] Compared with existing technologies, this utility model has the following beneficial effects:

[0013] This utility model discloses a temporary reinforcement support structure for the demolition of overpasses on existing operating railways. It reliably supports the overpass bridge by setting up columns, distribution beams, and external diagonal bracing columns. The intermediate support struts on the distribution beams reliably support the overpass roof, preventing collapse after the bridge columns are removed. Concrete strip bases, short concrete columns, columns, and external diagonal bracing columns are installed between the two bridge columns to support the overpass. The construction time is short, the steel structure can be assembled quickly, and the overpass can be effectively reinforced rapidly. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front structural view of the temporary reinforcement support structure for the demolition of an overpass for an existing running railway, as described in Example 1.

[0016] Figure 2 This is a structural side view of the temporary reinforcement support structure for the demolition of an overpass for an existing running railway, as described in Example 1.

[0017] Figure 3 This is an enlarged schematic diagram of the connection structure between the columns and the connecting rod assembly in Example 2.

[0018] Explanation of reference numerals in the attached drawings: 1. Concrete strip base; 2. Concrete short column; 3. Column; 4. External diagonal bracing column; 5. Inter-column connecting rod assembly; 6. Distribution beam; 7. Intermediate support strut; 8. Diagonal tie rod; 51. Intermediate connecting seat; 52. Diagonal connecting pipe; 53. Connecting rod; 54. Connecting sleeve; 55. Locking nut; 56. Hexagonal prism structure; 100. Overpass; 101. Bridge; 102. Top cover; 103. Bridge column. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] Example 1

[0022] Reference Figures 1-3 As shown, this embodiment provides a temporary reinforcement support structure for the demolition of an overpass on an existing operating railway. It includes a concrete strip base 1 located between two bridge columns 103 of the overpass 100. Concrete short columns 2 are provided at both ends of the concrete strip base 1. Upright columns 3 are provided on both sides of the two concrete short columns 2 and inserted into the concrete short columns 2. External diagonal bracing columns 4 are provided on the outer side of the two concrete short columns 2 and inserted into the concrete short columns 2. An inter-column connecting rod assembly 5 is provided between two adjacent upright columns 3. The top of the external diagonal bracing column 4 supports the bridge 101 of the overpass 100. Distribution beams 6 supporting the bridge 101 of the overpass 100 are provided on the two upright columns 3 of the concrete short columns 2. Intermediate support struts 7 are provided on the distribution beams 6, which pass upward through the bridge 101 of the overpass 100 and connect to the top cover 102 of the overpass 100.

[0023] In the temporary reinforcement support structure for the demolition of an overpass on an existing railway, a foundation pit is dug at the railway platform between the two bridge columns 103 of the overpass 100. A concrete strip base 1 is set in the foundation pit, and then a steel cage is set on the concrete strip base 1. The column 3 and the external diagonal support column 4 are inserted into the steel cage. The formwork is adjusted outside the steel cage, and finally, concrete short column 2 is obtained by pouring concrete. The concrete short column 2 is fixedly connected to the column 3 and the external diagonal support column 4.

[0024] The bridge 101 of the overpass 100 is reliably supported by the distribution beam 6 and the outer diagonal bracing column 4 on the column 3. The intermediate support rod 7 on the distribution beam 6 can reliably support the top cover 102 of the overpass 100, preventing the top cover 102 of the overpass 100 from collapsing after the bridge column 103 of the overpass 100 is removed.

[0025] A column-to-column linkage assembly 5 is installed between the two columns 3 to fix the two columns 3 together, preventing the columns 3 from tilting, so that the four columns 3 form a frame, making the structure more robust, less prone to deformation, and providing good support.

[0026] Furthermore, by setting up concrete strip bases 1, concrete short columns 2, columns 3 and external diagonal bracing columns 4 between the two bridge pillars 103 of the overpass 100, the construction time is short and the steel structure can be assembled quickly, which can rapidly reinforce the overpass.

[0027] In this embodiment, the distribution beam 6 is an I-beam structure. The distribution beam 6 is placed on two columns 3 and fixed to the columns 3 by welding. A pad is set between the top surface of the distribution beam 6 and the bottom surface of the bridge 101 of the overpass 100 to ensure reliable support for the overpass 100.

[0028] Specifically, refer to Figure 1 The outer diagonal support column 4 is equipped with a diagonal tie rod 8 connected to the distribution beam 6. The diagonal tie rod 8 is a channel steel structure, and the two ends of the diagonal tie rod 8 are fixedly connected to the outer wall of the outer diagonal support column 4 and the column 3 by welding.

[0029] Specifically, refer to Figure 1 The bottom of the external inclined support column 4 and the column 3 are integrally cast with the concrete short column 2. The external inclined support column 4 and the column 3 are cylindrical steel structures to ensure that the external inclined support column 4 and the column 3 are firmly connected with the concrete short column 2 and are not easy to loosen.

[0030] Specifically, refer to Figure 1 and Figure 2 The column-to-column linkage assembly 5 includes two intersecting linkages. The two linkages are fixed by welding at their intersection. The linkages are fixed to the column 3 by welding. The linkages are channel steel structures.

[0031] Example 2

[0032] The technical solution of this embodiment is largely the same as that of Embodiment 1, except that the structural configuration of the column-to-column connecting rod assembly 5 is different. (Refer to...) Figure 3 As shown, the column connecting rod assembly 5 includes an intermediate connecting seat 51 and inclined tubes 52 provided on the upper and lower parts on both sides of the intermediate connecting seat 51. The two inclined tubes 52 located on the upper part of the intermediate connecting seat 51 extend upward at an angle, and the two inclined tubes 52 located on the lower part of the intermediate connecting seat 51 extend downward at an angle. The inclined tubes 52 are provided with connecting rods 53 that are connected to the column 3.

[0033] In this embodiment, the column connecting rod assembly 5 is connected to the column 3 by four adjustable-length connecting rods 53 on the intermediate connecting seat 51. The extension length of the connecting rods 53 can be adjusted, making it easy to adjust to a suitable length for connection with the column 3. There is no need to cut the connecting rods 53, making installation convenient, quick, and simple to operate.

[0034] Specifically, refer to Figure 3 As shown, inclined connecting sleeves 54 are provided on the side walls of the upper and lower parts of the column 3. The connecting sleeve 54 located at the upper part of the column 3 extends downward at an incline, and the connecting sleeve 54 located at the lower part of the column 3 extends upward at an incline. The connecting rod 53 can be threadedly connected to the connecting sleeve 54. By connecting the connecting rod 53 to the connecting sleeve 54 through the threaded structure, the length of the connecting rod 53 extending outside the inclined pipe 52 can be quickly adjusted.

[0035] Specifically, refer to Figure 3 As shown, the connecting sleeve 54 and the inclined pipe 52 are provided with internal threads. The two ends of the connecting rod 53 are provided with screw parts adapted to the internal threads, and the screw parts are provided with locking nuts 55. The middle part of the connecting rod 53 is provided with a hexagonal prism structure 56. In this embodiment, the two ends of the connecting rod 53 are threadedly connected to the connecting sleeve 54 and the inclined pipe 52. The distance between the four connecting sleeves 54 and the four inclined pipes 52 is adjusted so that the four connecting sleeves 54 abut against the four columns 3. The connecting sleeves 54 and the columns 3 are fixed by welding. Then, the connecting rod 53 is locked to the connecting sleeves 54 and the inclined pipe 52 by the locking nuts 55. A weld is provided at the abutment of the end faces of the locking nuts 55 and the connecting sleeves 54 and the inclined pipes 52 for welding and fixing, so as to ensure that the connecting rod assembly 5 between the columns provides reliable support for the columns 3 on both sides. The setting of the hexagonal prism structure 56 makes it easy to rotate the connecting rod 53 so that the other end of the connecting rod 53 is threadedly connected to the connecting sleeve 54.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above embodiments only illustrate one or more implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A temporary reinforcement support structure for the demolition of an overpass on an existing operating railway, characterized in that, The system includes a concrete strip base (1) located between two bridge columns (103) of the overpass (100). The concrete strip base (1) has concrete short columns (2) at both ends. The two sides of the two concrete short columns (2) have columns (3) inserted into the concrete short columns (2). The outer sides of the two concrete short columns (2) have external diagonal bracing columns (4) inserted into the concrete short columns (2). The column connecting rod assembly (5) is provided between two adjacent columns (3). The top of the external diagonal bracing column (4) supports the bridge (101) of the overpass (100). The two columns (3) of the concrete short columns (2) have distribution beams (6) supporting the bridge (101) of the overpass (100). The distribution beams (6) have intermediate support struts (7) that connect the bridge (101) of the overpass (100) upward through the bridge (101) and the top cover (102) of the overpass (100).

2. The temporary reinforcement support structure for the demolition of an overpass on an existing operating railway as described in claim 1, characterized in that, The outer diagonal bracing column (4) is provided with a diagonal tie rod (8) connected to the distribution beam (6).

3. The temporary reinforcement support structure for the demolition of an overpass on an existing operating railway as described in claim 1, characterized in that, The bottom of the external diagonal bracing column (4) and the column (3) are integrally formed and cast with the concrete short column (2), and the external diagonal bracing column (4) and the column (3) are cylindrical steel structures.

4. A temporary reinforcement support structure for the demolition of an overpass on an existing operating railway, as described in claim 1, 2, or 3, characterized in that... The column-to-column linkage assembly (5) includes two intersecting linkages, which are fixed by welding at the intersection of the two linkages, and the linkages are fixed to the column (3) by welding.

5. A temporary reinforcement support structure for the demolition of an overpass on an existing operating railway, as described in claim 1, 2, or 3, characterized in that... The column-to-column linkage assembly (5) includes an intermediate connecting seat (51) and inclined tubes (52) provided on the upper and lower parts of both sides of the intermediate connecting seat (51). The two inclined tubes (52) located on the upper part of the intermediate connecting seat (51) extend upward at an angle, and the two inclined tubes (52) located on the lower part of the intermediate connecting seat (51) extend downward at an angle. The inclined tubes (52) are provided with connecting rods (53) that connect to the column (3).

6. A temporary reinforcement support structure for the demolition of an overpass on an existing operating railway, as described in claim 5, is characterized in that... The upper and lower sides of the column (3) are provided with inclined connecting sleeves (54). The connecting sleeve (54) located at the upper part of the column (3) extends downward at an inclination, and the connecting sleeve (54) located at the lower part of the column (3) extends upward at an inclination. The connecting rod (53) can be connected to the connecting sleeve (54).

7. A temporary reinforcement support structure for the demolition of an overpass on an existing operating railway, as described in claim 6, is characterized in that... The connecting sleeve (54) and the inclined pipe (52) are provided with internal threads. The two ends of the connecting rod (53) are provided with screw parts that are adapted to the internal threads. The screw parts are provided with locking nuts (55).

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