Railway T-beam bridge sound barrier foundation steel concrete suspension casting device

Abstract

The utility model discloses a railway T-beam bridge sound barrier foundation steel concrete suspension pouring device which comprises a bridge prefabricated section, the bridge prefabricated section is installed on a pier which is constructed in advance in a hoisting mode, tensioning reserved holes are formed in the two sides of the bridge prefabricated section, suspension pouring models are installed on the two sides of the bridge prefabricated section, and the suspension pouring models are connected with the bridge prefabricated section. Corrugated pipes are installed in the tensioning preformed holes in the two sides of the bridge prefabricated section in an inserted mode, and the ends, away from the bridge prefabricated section, of the corrugated pipes are connected with the ends, away from the bridge prefabricated section, of the suspended pouring models. Fasteners are installed on the outer walls of the finish rolling deformed steel bars to fix the I-shaped steel supporting structures so that the I-shaped steel supporting structures can stably support the suspension casting model, after reinforced concrete to be cast is formed, the I-shaped steel supporting structures and the suspension casting model can be disassembled only by taking down the fasteners, the effect of rapidly disassembling the suspension casting model is achieved, and the construction efficiency of the suspension casting bridge deck slab is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building assembly, in particular to a steel-concrete suspended pouring device for a sound barrier foundation of a railway T-beam bridge. Background Art

[0002] When railway lines pass through cities and villages, in order to reduce the impact of noise and wind resistance noise generated between railway trains and tracks on residents and effectively improve the living conditions of residents along the railway, it is necessary to set up a railway sound barrier noise isolation facility. The main functions of railway sound barriers are short-circuiting sound wave propagation, sound insulation and noise reduction, and beautifying the environment. According to the location of the installation, they are roughly divided into roadbed sound barriers and bridge sound barriers.

[0003] In order to meet the requirements of setting up sound barriers on railway T-beam bridges, plug-in sound barriers are used on the bridge. Sidewalks are set on both sides of the T-beam bridge deck. The sidewalks adopt the form of an integral bridge deck, and the bridge deck is set with transverse prestressing. The sound barrier is set on the outermost side of the sidewalk, and the sound barrier foundation and the bridge deck are integrated. Due to the need to set up a sound barrier on the bridge, the width of the railway T-beam is widened, which makes it impossible to ensure the construction of the railway T-beam during the storage, transportation, and erection stages. The beam surface needs to be divided into a prefabricated section and a cast-in-place section for two constructions. At the same time, it can also meet the transverse post-tensioning prestressing construction of the bridge deck.

[0004] At present, the cast-in-place section of the bridge deck of the sound barrier foundation is mostly constructed by the bracket method or the bridge hanging basket method. The cast-in-place method cannot guarantee construction when the bridge is high or there are obstacles under the bridge, and the hanging basket method will occupy a large working area of ​​the bridge deck, which is not conducive to construction and blocks the beam surface passage, which is extremely unfavorable to subsequent work. Utility Model Content

[0005] To this end, the utility model provides a steel-concrete suspended casting device for a railway T-beam bridge sound barrier foundation to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] According to the first aspect of the utility model, a steel-concrete suspended casting device for the foundation of a sound barrier of a railway T-beam bridge comprises a precast bridge section, the precast bridge section is hoisted and installed on a pre-constructed pier, tensioning reserved holes are arranged on both sides of the precast bridge section, the tensioning reserved holes are evenly arranged on both sides of the precast bridge section, openings are arranged on both sides of the top surface of the precast bridge section, the openings on the top surface of the precast bridge section are arranged at a certain interval on both sides of the top surface of the precast bridge section, suspended casting models are installed on both sides of the precast bridge section, corrugated pipes are inserted and installed in the tensioning reserved holes on both sides of the precast bridge section, one end of the corrugated pipe away from the precast bridge section extends to the side of the precast bridge section and is connected to one end of the suspended casting model away from the precast bridge section, the top surface of the suspended casting model can be poured with reinforced concrete, and when pouring reinforced concrete, the corrugated pipe can extend the tensioning reserved holes on the side of the precast bridge section.

[0008] Furthermore, the cross-section of the cantilever cast model is L-shaped, and a plurality of protrusions are arranged on the top surface of the cantilever cast model away from the prefabricated bridge section, and the protrusions on the top surface of the cantilever cast model correspond to the tensioning reserved holes on the side surfaces of the prefabricated bridge section.

[0009] Furthermore, an opening is provided on one side of the protrusion on the top surface of the suspended cast model close to the prefabricated section of the bridge, and the end of the corrugated pipe away from the prefabricated section of the bridge is inserted into the opening of the protrusion on the top surface of the suspended cast model, and a reinforcing spring is sleeved on the outer wall of the end of the corrugated pipe inserted into the opening of the suspended cast model.

[0010] Furthermore, an I-beam is arranged below the suspended cast-in-place model, two of the I-beams are fixedly welded near one end of the prefabricated bridge section and extend to the bottom of the side of the prefabricated bridge section, and the two I-beams are welded into a V-shaped structure and installed below the suspended cast-in-place model.

[0011] Furthermore, PVC pipes are inserted and installed in the openings provided on both sides of the top surface of the prefabricated bridge section, a round pipe is inserted and installed in the PVC pipe, the upper end of the round pipe extends out of the PVC pipe, and high-rolled threaded steel is inserted and installed in the round pipe, and the lower end of the high-rolled threaded steel penetrates the prefabricated bridge section and passes through the angle between the welding ends of the two I-beams.

[0012] Furthermore, the surface of the finished rolled threaded steel is provided with threads, and fasteners are threadedly installed at both the upper and lower ends of the finished rolled threaded steel. The fasteners at the upper end of the finished rolled threaded steel abut against the upper end of the round tube, and the fasteners at the lower end of the finished rolled threaded steel abut against the bottom surface of the I-beam.

[0013] Furthermore, a hanging ring is provided on the top surface of one end of the I-beam away from the prefabricated bridge section, and an elastic buckle is connected to the hanging ring. The end of the elastic buckle away from the hanging ring is fixedly connected to the outer edge of the top surface of the suspended cast-in-place model, and the outer wall of the end of the two I-beams welded together away from the prefabricated bridge section is sleeved with a ring.

[0014] Furthermore, a pad is installed on the bottom surface of the suspended cast model, pads are evenly arranged on the bottom surface of the pad, the pads are arranged on the top surface of the I-beam, and the pad and pads are arranged between the suspended cast model and the I-beam.

[0015] The utility model has the following advantages: 1. By installing a corrugated pipe between the suspended casting model and the precast bridge section, the effect of retaining and extending the side tensioning reserved hole of the precast bridge section is achieved when pouring reinforced concrete on the top surface of the suspended casting model, thereby avoiding the subsequent secondary drilling for opening the tensioning reserved hole, and greatly improving the construction efficiency of the suspended casting section transverse prestressing tensioning system;

[0016] 2. A V-shaped I-beam support structure is set under the suspended cast-in-place model. The fine-rolled threaded steel is passed through the holes on both sides of the top surface of the precast section of the bridge, and fasteners are installed on the outer wall of the fine-rolled threaded steel to fix the I-beam support structure so that it can stably support the suspended cast-in-place model. After the poured reinforced concrete is formed, the I-beam support structure and the suspended cast-in-place model can be disassembled by simply removing the fasteners, so as to achieve the effect of quickly dismantling the suspended cast-in-place model and improve the construction efficiency of the suspended cast-in-place bridge deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model provides a front view of a steel-concrete suspended casting device for a railway T-beam bridge sound barrier foundation.

[0018] Figure 2 A side view of a steel-concrete suspended casting device for a railway T-beam bridge sound barrier foundation provided by the utility model.

[0019] Figure 3 The utility model provides a bottom view of a steel-concrete suspended casting device for a railway T-beam bridge sound barrier foundation.

[0020] Figure 4 The utility model provides a side sectional view of a steel-concrete suspended casting device for a railway T-beam bridge sound barrier foundation.

[0021] Figure 5 The utility model provides a railway T-beam bridge sound barrier foundation steel-concrete suspended casting device Figure 4 Detail of Figure A.

[0022] Figure 6 This is a usage scenario diagram of a steel-concrete suspended casting device for a railway T-beam bridge sound barrier foundation provided by the utility model.

[0023] In the figure: 11. Prefabricated bridge section, 12. Round tube, 13. Fastener, 14. High-precision rolled threaded steel, 15. I-beam, 16. Ring, 17. Hanging ring, 18. Elastic buckle, 19. Suspended cast model, 20. Pad, 21. Pad strip, 22. Corrugated pipe, 23. Strengthening spring, 24. PVC pipe. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0025] like Figures 1 to 4 and Figure 6 As shown, a steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier in the embodiment of the first aspect of the utility model comprises a prefabricated bridge section 11, the prefabricated bridge section 11 is hoisted and installed on a pre-constructed pier, tensioning reserved holes are arranged on both sides of the prefabricated bridge section 11, the tensioning reserved holes are evenly arranged on both sides of the prefabricated bridge section 11, openings are arranged on both sides of the top surface of the prefabricated bridge section 11, the openings on the top surface of the prefabricated bridge section 11 are arranged at a certain interval on both sides of the top surface of the prefabricated bridge section 11, suspended casting models 19 are installed on both sides of the prefabricated bridge section 11, and bellows 22 are inserted and installed in the tensioning reserved holes on both sides of the prefabricated bridge section 11, the end of the bellows 22 away from the prefabricated bridge section 11 extends to the side of the prefabricated bridge section 11 and is connected to the end of the suspended casting model 19 away from the prefabricated bridge section 11, the top surface of the suspended casting model 19 can be poured with reinforced concrete, and when pouring reinforced concrete, the bellows 22 can extend the tensioning reserved holes on the side of the prefabricated bridge section 11;

[0026] In the above embodiment, it should be noted that the bridge precast section 11 is a precast component made of reinforced concrete, and the diameter of the corrugated pipe 22 is smaller than the inner diameter of the tensioning reserved hole on the side of the bridge precast section 11. Before pouring reinforced concrete on the top surface of the suspended casting model 19, the corrugated pipe 22 needs to be extended into the tensioning reserved hole on the side of the bridge precast section 11 at a certain distance;

[0027] The technical effect achieved by the above embodiment is: by installing the corrugated pipe 22 between the suspended cast model 19 and the prefabricated bridge section, the effect of retaining and extending the side tensioning holes of the prefabricated bridge section 11 is achieved when pouring reinforced concrete on the top surface of the suspended cast model 19, thereby avoiding the subsequent secondary drilling for opening the tensioning holes, and greatly improving the construction efficiency of the suspended section transverse prestressing tensioning system. Example

[0028] like Figures 1 to 4As shown, a steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier includes all the contents of Example 1, and in addition, the cross-section of the suspended casting model 19 is L-shaped, and a plurality of protrusions are arranged on the side of the top surface of the suspended casting model 19 away from the bridge prefabricated section 11, and the protrusions on the top surface of the suspended casting model 19 correspond to the tensioning reserved holes on the side of the bridge prefabricated section 11, and an opening is arranged on the side of the protrusion on the top surface of the suspended casting model 19 close to the bridge prefabricated section 11, and one end of the corrugated pipe 22 away from the bridge prefabricated section 11 is inserted into the opening of the protrusion on the top surface of the suspended casting model 19, and the outer wall of one end of the corrugated pipe 22 inserted into the opening of the suspended casting model 19 is sleeved with a reinforcing spring 23;

[0029] In the above embodiment, it should be noted that the cantilever casting model 19 is made of metal, the inner diameter of the opening protruding on the top surface of the cantilever casting model 19 is larger than the diameter of the bellows 22, and the reinforcing spring 23 has the function of reinforcing the strength of the reserved hole for tensioning on the side of the extended bridge prefabricated section 11;

[0030] The technical effect achieved by the above embodiment is: first, the tensioning reserved hole on the side of the bridge prefabricated section 11 is cleaned, one end of the corrugated pipe 22 is inserted into the raised opening on the top surface of the suspended cast-in-place model 19, and then the other end of the corrugated pipe 22 is inserted into the tensioning reserved hole on the side of the bridge prefabricated section 11 to achieve the effect of installing the corrugated pipe 22. Example

[0031] like Figures 1 to 5 As shown, a steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier includes all the contents of Example 2. In addition, an I-beam 15 is arranged below the suspended casting model 19, and two of the I-beams 15 are fixedly welded at one end close to the bridge prefabricated section 11 and extend to the bottom of the side of the bridge prefabricated section 11. The two I-beams 15 are welded into a V-shaped structure and installed below the suspended casting model 19, and PVC pipes 24 are inserted and installed in the openings arranged on both sides of the top surface of the bridge prefabricated section 11, and round pipes are inserted and installed in the PVC pipes 24. 12, the upper end of the round tube 12 extends out of the PVC tube 24, and a fine-rolled threaded steel bar 14 is inserted and installed in the round tube 12. The lower end of the fine-rolled threaded steel bar 14 passes through the bridge prefabricated section 11 and passes through the angle between the welding ends of the two I-beams 15. The surface of the fine-rolled threaded steel bar 14 is provided with threads, and the upper and lower ends of the fine-rolled threaded steel bar 14 are threadedly installed with fasteners 13. The fastener 13 at the upper end of the fine-rolled threaded steel bar 14 abuts against the upper end of the round tube 12, and the fastener 13 at the lower end of the fine-rolled threaded steel bar 14 abuts against the bottom surface of the I-beam 15;

[0032] In the above embodiment, it should be noted that the I-beam 15 is made of metal, the round tube 12 is made of steel tube material, and the inner diameter of the round tube 12 is greater than the diameter of the precision-rolled threaded steel 14 .

[0033] The technical effect achieved by the above embodiment is: by threading the fastener 13 at the upper end of the fine-rolled threaded steel bar 14 on the upper end of the fine-rolled threaded steel bar 14, then inserting the lower end of the fine-rolled threaded steel bar 14 into and passing through the angle between the welding ends of the two I-beams 15, and finally installing the fastener 13 at the lower end of the fine-rolled threaded steel bar 14 to make it rest against the bottom surface of the I-beam 15, and fixing the I-beam 15 to achieve the effect of supporting the suspended cast-in-place model 19; after the reinforced concrete to be poured is formed, the I-beam 15 and the suspended cast-in-place model 19 can be disassembled by removing the fastener 13, so as to achieve the effect of quickly dismantling the suspended cast-in-place model 19, thereby improving the construction efficiency of the suspended cast-in-place bridge deck. Example

[0034] like Figure 1 , Figure 3 and Figure 4 As shown, a steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier includes all the contents of Example 3, in addition, a hanging ring 17 is provided on the top surface of one end of the I-beam 15 away from the bridge prefabricated section 11, and a tightening buckle 18 is connected to the hanging ring 17, and the end of the tightening buckle 18 away from the hanging ring 17 is fixedly connected to the outer edge of the top surface of the suspended casting model 19, and the outer wall of the end of the two I-beams 15 welded together away from the bridge prefabricated section 11 is sleeved with a collar 16;

[0035] In the above embodiment, it should be noted that the collar 16 can tighten the ends of the two I-beams 15 welded together away from the prefabricated bridge section 11, so as to enable the two I-beams 15 to clamp the finished rolled threaded steel bars 14;

[0036] The technical effect achieved by the above embodiment is: the hanging ring 17 is connected to the outer edge of the top surface of the suspended cast-in-place model 19 through the elastic buckle 18, so as to achieve the effect of tightening the suspended cast-in-place model 19 so that it is tightly connected to the I-beam 15 and maintains balance. Example

[0037] like Figures 1 to 4 As shown, a steel-concrete suspended casting device for a railway T-beam bridge sound barrier foundation includes all the contents of Example 4, and in addition, a pad 20 is installed on the bottom surface of the suspended casting model 19, and pads 21 are evenly arranged on the bottom surface of the pad 20, and the pads 21 are arranged on the top surface of the I-beam 15, and the pad 20 and the pad 21 are arranged between the suspended casting model 19 and the I-beam 15;

[0038] In the above embodiment, it should be noted that, in order to facilitate construction, the pad 20 and the pad strip 21 are both made of iron material;

[0039] The technical effect achieved by the above embodiment is that the pad 20 and the pad strip 21 fill the gap between the I-beam 15 and the suspended cast mold 19 and play the role of load support and buffering.

[0040] Working principle: First, the tensioning reservation on the side of the bridge prefabricated section 11 is cleaned up, and then the fastener 13 at the upper end of the fine-rolled threaded steel 14 is threadedly installed on the upper end of the fine-rolled threaded steel 14, and then the lower end of the fine-rolled threaded steel 14 is inserted and passed through the angle between the two welded ends of the I-beams 15, and finally the fastener 13 at the lower end of the fine-rolled threaded steel 14 is installed to make it against the bottom surface of the I-beam 15, and the I-beam 15 is fixedly installed, and then the collar 16 is put on the two welded I-beams 15 away from the bridge prefabricated section 11. At one end, two I-beams 15 clamp the fine-rolled threaded steel bars 14, install the suspended cast model 19 on the top surface of the I-beam 15, and use the elastic buckle 18 to connect the hanging ring 17 and the suspended cast model 19, insert one end of the corrugated pipe 22 into the raised opening on the top surface of the suspended cast model 19, and then insert the other end of the corrugated pipe 22 into the tensioning reserved hole on the side of the bridge prefabricated section 11, and finally cast the reinforced concrete on the top surface of the suspended cast model 19. After the reinforced concrete is formed, just remove the fastener 13 to quickly disassemble the I-beam 15 and the suspended cast model 19.

Claims

1. A steel-concrete suspended casting device for a railway T-beam bridge sound barrier foundation, comprising a bridge prefabricated section (11), the bridge prefabricated section (11) being hoisted and installed on a pre-constructed bridge pier, and tensioning reserved holes being arranged on both sides of the bridge prefabricated section (11), the tensioning reserved holes being evenly arranged on both sides of the bridge prefabricated section (11), characterized in that: Openings are arranged on both sides of the top surface of the precast bridge section (11); the openings on the top surface of the precast bridge section (11) are arranged at a certain interval on both sides of the top surface of the precast bridge section (11); cantilever cast models (19) are installed on both sides of the precast bridge section (11); corrugated pipes (22) are inserted and installed in the tensioning reserved holes on both sides of the precast bridge section (11); one end of the corrugated pipe (22) away from the precast bridge section (11) extends to the side of the precast bridge section (11) and is connected to one end of the cantilever cast model (19) away from the precast bridge section (11); the top surface of the cantilever cast model (19) can be poured with reinforced concrete; when pouring reinforced concrete, the corrugated pipe (22) can extend the tensioning reserved holes on the side of the precast bridge section (11).

2. The steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier according to claim 1 is characterized in that: The cantilever cast model (19) has an L-shaped cross section, and a plurality of protrusions are provided on a side of the top surface of the cantilever cast model (19) away from the prefabricated bridge section (11), and the protrusions on the top surface of the cantilever cast model (19) correspond to the pre-tensioning holes on the side of the prefabricated bridge section (11).

3. The steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier according to claim 2 is characterized in that: An opening is provided on a side of the top surface protrusion of the suspended cast model (19) close to the prefabricated bridge section (11); an end of the bellows (22) away from the prefabricated bridge section (11) is inserted into the opening of the top surface protrusion of the suspended cast model (19); and a reinforcing spring (23) is sleeved on the outer wall of the end of the bellows (22) inserted into the opening of the suspended cast model (19).

4. The steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier according to claim 1 is characterized in that: An I-beam (15) is arranged below the suspended cast model (19); two I-beams (15) are fixedly welded at one end close to the bridge prefabricated section (11) and extend to the bottom of the side of the bridge prefabricated section (11); the two I-beams (15) are welded to form a V-shaped structure and are installed below the suspended cast model (19).

5. The steel-concrete suspended casting device for the foundation of the railway T-beam bridge sound barrier according to claim 4 is characterized in that: A PVC pipe (24) is inserted and installed in the openings provided on both sides of the top surface of the prefabricated bridge section (11), a round pipe (12) is inserted and installed in the PVC pipe (24), the upper end of the round pipe (12) extends out of the PVC pipe (24), a fine-rolled threaded steel bar (14) is inserted and installed in the round pipe (12), and the lower end of the fine-rolled threaded steel bar (14) passes through the prefabricated bridge section (11) and passes through the angle between the welding ends of the two I-beams (15).

6. The steel-concrete suspended casting device for the foundation of the railway T-beam bridge sound barrier according to claim 5 is characterized in that: The surface of the fine-rolled threaded steel (14) is provided with threads, and fasteners (13) are threadedly installed at both the upper and lower ends of the fine-rolled threaded steel (14), the fastener (13) at the upper end of the fine-rolled threaded steel (14) abuts against the upper end of the round tube (12), and the fastener (13) at the lower end of the fine-rolled threaded steel (14) abuts against the bottom surface of the I-beam (15).

7. The steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier according to claim 4 is characterized in that: A hanging ring (17) is provided on the top surface of one end of the I-beam (15) away from the prefabricated bridge section (11), and a tightening buckle (18) is connected to the hanging ring (17). The end of the tightening buckle (18) away from the hanging ring (17) is fixedly connected to the outer edge of the top surface of the suspended cast model (19), and the outer wall of the end of the two I-beams (15) welded together away from the prefabricated bridge section (11) is sleeved with a ring (16).

8. The steel-concrete suspended casting device for the foundation of a railway T-beam bridge sound barrier according to claim 4 is characterized in that: A pad (20) is installed on the bottom surface of the suspended cast model (19), pad strips (21) are evenly arranged on the bottom surface of the pad (20), the pad strips (21) are arranged on the top surface of the I-beam (15), and the pad (20) and the pad strips (21) are arranged between the suspended cast model (19) and the I-beam (15).

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