Civil engineering expansion joint waterproof structure

Abstract

This utility model relates to the technical field of waterproof expansion joint structures, specifically a waterproof expansion joint structure for civil engineering. It includes a central beam fixedly connected to multiple horizontal beams, with side beams on both sides of the central beam. Rubber strips are fixedly connected between the central beam and the two side beams. Multiple pressure-resistant plates are fixedly connected to the central beam, and the side beams are slidably connected to the pressure-resistant plates. Two sets of inclined grooves are formed at the center of each pressure-resistant plate, with multiple drainage holes at the bottom of the grooves. Drainage strips are provided on the outer side of the side beams, and the pressure-resistant plates are slidably connected to the drainage strips. Drainage grooves are formed on the drainage strips, and the drainage holes and drainage grooves are interconnected. Rainwater falling onto the pressure-resistant plate flows along the inclined grooves to the drainage holes at the bottom, then flows along the drainage holes into the drainage grooves on the drainage strips, and finally drains the rainwater to the outside of the bridge through the drainage grooves, preventing water from seeping into the structure.

Description

Technical Field

[0001] This utility model relates to a waterproof structure for expansion joints, specifically a waterproof structure for expansion joints in civil engineering, and belongs to the technical field of waterproof structures for expansion joints. Background Technology

[0002] Civil engineering includes fields such as road and bridge engineering and building engineering. In the field of bridge engineering, the main method is to place the main body of the expansion joint into the groove reserved in the bridge deck, so that it is smoothly connected to the bridge deck. Then, anchor steel bars are tied and high-strength concrete is poured into the groove to ensure that the expansion joint is firmly connected to the beam. This actively absorbs the displacement of the bridge caused by temperature, load and settlement. In order to avoid problems such as water seepage corroding steel bars, damaging bearings and damaging bridge deck pavement during use, a waterproof expansion joint is often used.

[0003] However, traditional expansion joints mainly achieve their waterproofing function by filling the gaps with sealant or covering them with waterproof membrane during installation. However, during long-term use, expansion joints are prone to reduced water resistance due to material aging or deformation, which can damage steel bars, supports, and other parts. They are not practical, and it is inconvenient to replace the waterproofing material, resulting in low flexibility. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof structure for civil engineering expansion joints in order to solve the above problems. By setting a pressure-resistant plate with a symmetrical inclined surface at the center between the gaps, rainwater flows along the inclined surface into the drainage channel on the side of the edge beam, and then is discharged from the drainage channel to both sides of the expansion joint. This effectively improves the drainage effect and avoids the problem of rainwater seepage causing damage to steel bars, supports and other parts. It is highly practical.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a waterproof structure for expansion joints in civil engineering, comprising a crossbeam, on which an expansion structure is installed, the expansion structure comprising a central beam, multiple crossbeams being fixedly connected to the central beam, side beams being provided on both sides of the central beam, rubber strips being fixedly connected between the central beam and the two side beams, a drainage structure being connected to the central beam, the drainage structure comprising a pressure-resistant plate, multiple pressure-resistant plates being fixedly connected to the central beam, the side beams being slidably connected to the pressure-resistant plates, two sets of inclined grooves being provided at the center of the pressure-resistant plate, multiple drainage holes being provided at the bottom of the inclined grooves, drainage strips being provided on the outer side of the side beams, the pressure-resistant plates being slidably connected to the drainage strips, drainage grooves being provided on the drainage strips, and the drainage holes and drainage grooves being interconnected.

[0006] Preferably, the bottom of the side beam is fixedly connected to multiple anchor plates, and anchor bars are fixedly connected to the anchor plates.

[0007] Preferably, the two sets of inclined grooves are symmetrically arranged, a filter plate is provided above the inclined groove, the filter plate and the pressure-resistant plate are engaged with each other, and the filter plate and the top of the inclined groove abut against each other.

[0008] Preferably, the plurality of pressure-resistant plates are arranged at equal intervals, and a rubber strip abuts between two adjacent pressure-resistant plates, and the filter plate abuts against the rubber strip.

[0009] Preferably, the outer side of the side beam has two slots, and two inserts are fixedly connected to the drainage strip. The inserts engage with the adjacent slots, and the drainage strip abuts against the side beam.

[0010] Preferably, the two side beams are arranged symmetrically, and the bottom of the side beams is provided with a displacement structure.

[0011] Preferably, the cross-section of the top of the side beam is "F" shaped, and the cross-section of the rubber strip is "V" shaped.

[0012] Preferably, the displacement structure includes a sliding sleeve, a plurality of sliding sleeves are fixedly connected to the bottom surface of the side beam, the sliding sleeves are slidably connected to the crossbeam, a slider is fixedly connected inside the sliding sleeve, the slider is slidably connected to the crossbeam, and a stop block is fixedly connected to both ends of the crossbeam.

[0013] Preferably, two adjacent sliding sleeves are arranged symmetrically, and a rubber block is fixedly connected between the inner wall of the sliding sleeve and the crossbeam.

[0014] The beneficial effects of this utility model are as follows: a central beam is fixedly connected between multiple crossbeams, and side beams are provided on both sides of the central beam. Rubber strips are fixedly connected between the central beam and the two side beams. Multiple pressure-resistant plates are fixedly connected to the central beam, and the side beams are slidably connected to the pressure-resistant plates. Two sets of inclined grooves are opened at the center of the pressure-resistant plates, and multiple drainage holes are opened at the bottom of the inclined grooves. Drainage strips are provided on the outer side of the side beams, and the pressure-resistant plates are slidably connected to the drainage strips. Drainage grooves are opened on the drainage strips, and the drainage holes and drainage grooves are interconnected. Rainwater falling on the pressure-resistant plates flows along the inclined grooves to the drainage holes at the bottom, and then flows along the drainage holes into the drainage grooves on the drainage strips. Finally, the rainwater is discharged to the outside of the bridge through the drainage grooves, preventing water from seeping into the interior of the structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A. Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of section B. Figure 4This is a schematic diagram of the connection structure between the sliding sleeve and the slider of this utility model; Figure 5 This is a schematic diagram of the connection structure between the anchor plate and the anchor bar of this utility model; Figure 6 This is a schematic diagram of the connection structure between the inclined groove and the drainage hole of this utility model.

[0016] In the diagram: 1. Crossbeam; 2. Telescopic structure; 201. Middle beam; 202. Side beam; 203. Rubber strip; 204. Anchor plate; 205. Anchor bar; 3. Displacement structure; 301. Sliding sleeve; 302. Sliding block; 303. Rubber block; 304. Stop block; 4. Drainage structure; 401. Pressure-resistant plate; 402. Filter plate; 403. Rubber strip; 404. Drainage strip; 405. Insert block; 406. Slot; 407. Inclined groove; 408. Drainage hole; 409. Drainage channel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-6As shown, a waterproof structure for expansion joints in civil engineering includes a crossbeam 1, on which an expansion structure 2 is installed. The expansion structure 2 includes a central beam 201. During the installation of the bridge expansion joint, the main body of the expansion joint is first placed into the pre-reserved groove of the bridge. The central beam 201 is fixedly connected between multiple crossbeams 1. Side beams 202 are provided on both sides of the central beam 201. Rubber strips 203 are fixedly connected between the central beam 201 and the two side beams 202. The "V"-shaped rubber strips 203 fixed between the central beam 201 and the side beams 202 will expand and contract synchronously with the displacement, always maintaining a sealed fit with the component, initially preventing rainwater from seeping in. Multiple anchor plates 204 are fixedly connected to the bottom of the side beams 202, and anchor bars 205 are fixedly connected to the anchor plates 204. The two side beams 202 are symmetrically arranged. The expansion joint is equipped with a displacement structure 3. The top section of the side beam 202 has an "F" shape, and the cross-section of the rubber strip 203 has a "V" shape. Then, the pre-installed steel bars of the bridge beam and the anchor bars 205 fixedly connected to the bottom anchor plate 204 of the side beam 202 need to be interlocked. Then, the interlocked steel bars and anchor bars 205 are firmly tied together by the binding process to ensure that the anchor bars 205 form a stable connection with the bridge beam through the steel bars. This makes the entire expansion joint tightly fixed to the beam, providing a reliable installation foundation for the subsequent structure to bear the load and realize the functions of expansion and waterproofing. After the main body of the expansion joint is fixed, high-strength concrete is poured into the gap between the bridge body and the main body of the expansion joint to ensure that the expansion joint is firmly connected to the beam, thereby actively absorbing the displacement of the bridge caused by temperature, load and settlement.

[0019] As a technical optimization of this utility model, a drainage structure 4 is connected to the central beam 201. The drainage structure 4 includes a pressure-resistant plate 401. Multiple pressure-resistant plates 401 are fixedly connected to the central beam 201. The side beam 202 is slidably connected to the pressure-resistant plates 401. Two sets of inclined grooves 407 are opened at the center of the pressure-resistant plate 401. Multiple drainage holes 408 are opened at the bottom of the inclined grooves 407. A drainage strip 404 is provided on the outer side of the side beam 202. Two slots 406 are opened on the outer side of the side beam 202. 4. Two inserts 405 are fixedly connected to the upper part, and the inserts 405 engage with the adjacent slots 406. The drainage strip 404 abuts against the side beam 202. The pressure plate 401 is slidably connected to the drainage strip 404. The drainage strip 404 has a drainage groove 409. The drainage hole 408 is connected to the drainage groove 409. The two sets of inclined grooves 407 are symmetrically arranged. A filter plate 402 is provided above the inclined groove 407. The filter plate 402 engages with the pressure plate 401. The filter plate 402 and the inclined groove 407 are connected. The tops of the plates abut against each other, and multiple pressure-resistant plates 401 are equidistantly arranged. A rubber strip 403 abuts between adjacent pressure-resistant plates 401. A filter plate 402 abuts against the rubber strip 403. Rainwater falling onto the pressure-resistant plates 401 first passes through the filter plate 402, which is engaged with the pressure-resistant plates 401, to filter impurities. Then, it flows along the symmetrically arranged inclined grooves 407 at the center of the pressure-resistant plates 401 to the drain holes 408 at the bottom. Subsequently, it flows along the drain holes 408 into the drain grooves 409 on the drain strips 404, and finally through the drainage... The water trough 409 drains rainwater to the outside of the bridge to prevent water from seeping into the structure. For routine maintenance, the filter plate 402 can be directly disassembled to clean the filtered debris. When the drainage strip 404 needs to be replaced, the old drainage strip 404 can be removed and replaced with a new one by using the interlocking structure of the fixed insert 405 on the drainage strip 404 and the slot 406 opened on the outer side of the side beam 202. At the same time, the rubber strip 403 between the adjacent pressure plates 401 can enhance the sealing of the gap between the plates and further prevent rainwater from seeping in from the gap between the pressure plates 401.

[0020] As a technical optimization of this utility model, the displacement structure 3 includes a sliding sleeve 301. Multiple sliding sleeves 301 are fixedly connected to the bottom surface of the side beam 202. The sliding sleeves 301 are slidably connected to the crossbeam 1. A slider 302 is fixedly connected inside the sliding sleeve 301. The slider 302 is slidably connected to the crossbeam 1. Both ends of the crossbeam 1 are fixedly connected to a stop block 304. The stop blocks 304 fixed at both ends of the crossbeam 1 can limit the sliding range of the sliding sleeve 301 and avoid excessive displacement leading to structural damage. Adjacent sliding sleeves 301 are symmetrically arranged. A rubber block 303 is fixedly connected between the inner wall of the sliding sleeve 301 and the crossbeam 1. When the bridge expands and contracts due to temperature changes and load, the side beam 202 will drive the sliding sleeve 301 fixed at its bottom surface to slide along the crossbeam 1. The slider 302 inside the sliding sleeve 301 slides in cooperation with the crossbeam 1, improving the stability during the sliding process. At the same time, the rubber block 303 fixed between the inner wall of the sliding sleeve 301 and the crossbeam 1 can buffer the sliding impact.

[0021] In use, during the installation of the bridge expansion joint, the main body of the expansion joint is first placed into the pre-reserved groove in the bridge. Then, the pre-installed reinforcing bars of the bridge beam and the anchor bars 205 fixedly connected to the bottom anchor plate 204 of the side beam 202 are interlocked. Subsequently, a binding process is used to firmly bind the interlocked reinforcing bars and the anchor bars 205, ensuring that the anchor bars 205 form a stable connection with the bridge beam through the reinforcing bars. This tightly fixes the entire expansion joint to the beam, providing a reliable installation foundation for the subsequent structure to bear loads and achieve expansion and waterproofing functions. After the expansion joint is completed... After the main body of the contraction joint is fixed, high-strength concrete is poured into the gap between the bridge body and the main body of the expansion joint to ensure a firm bond between the expansion joint and the beam. This actively absorbs the displacement of the bridge caused by temperature, load, and settlement. When the bridge expands or contracts due to temperature changes or load, the side beam 202 will drive the sliding sleeve 301 fixed on its bottom surface to slide along the crossbeam 1. The slider 302 inside the sliding sleeve 301 slides in cooperation with the crossbeam 1, improving the stability during the sliding process. At the same time, the rubber block 303 fixed between the inner wall of the sliding sleeve 301 and the crossbeam 1 can buffer the sliding impact. The stops 304 fixed at both ends of beam 1 can limit the sliding range of the sliding sleeve 301, preventing excessive displacement and structural damage. The "V"-shaped rubber strip 203 fixed between the middle beam 201 and the side beam 202 expands and contracts synchronously with the displacement, always maintaining a sealed fit with the component, initially preventing rainwater infiltration. Rainwater falling onto the pressure plate 401 on rainy days first passes through the filter plate 402 engaged on the pressure plate 401 to filter impurities, then flows along the symmetrically opened inclined grooves 407 at the center of the pressure plate 401 to the drainage holes 408 at its bottom, and subsequently flows along the drainage holes 408 into the drainage strip 404. Inside the drainage channel 409, rainwater is finally discharged to the outside of the bridge through the drainage channel 409 to prevent water from seeping into the structure. If routine maintenance is required, the filter plate 402 can be directly disassembled to clean the filtered debris. When the drainage strip 404 needs to be replaced, the old drainage strip 404 can be removed and replaced with a new one by using the interlocking structure of the fixed insert 405 on the drainage strip 404 and the slot 406 opened on the outer side of the side beam 202. At the same time, the rubber strip 403 between the adjacent pressure plates 401 can enhance the sealing of the gap between the plates and further prevent rainwater from seeping in from the gap between the pressure plates 401.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A civil engineering expansion joint waterproof structure, comprising a cross beam (1), an expansion structure (2) is installed on the cross beam (1), the expansion structure (2) comprises a middle beam (201), a plurality of the cross beams (1) are fixedly connected with the middle beam (201), both sides of the middle beam (201) are provided with a side beam (202), and the middle beam (201) and the two side beams (202) are fixedly connected with a rubber belt (203), characterized in that: A drainage structure (4) is connected to the central beam (201). The drainage structure (4) includes a pressure-resistant plate (401). Multiple pressure-resistant plates (401) are fixedly connected to the central beam (201). The side beam (202) is slidably connected to the pressure-resistant plate (401). Two sets of inclined grooves (407) are opened at the center of the pressure-resistant plate (401). Multiple drainage holes (408) are opened at the bottom of the inclined grooves (407). A drainage strip (404) is provided on the outer side of the side beam (202). The pressure-resistant plate (401) is slidably connected to the drainage strip (404). A drainage groove (409) is opened on the drainage strip (404). The drainage holes (408) and the drainage groove (409) are interconnected.

2. A waterproof structure for civil engineering expansion joint according to claim 1, characterized in that: The bottom of the side beam (202) is fixedly connected to multiple anchor plates (204), and anchor bars (205) are fixedly connected to the anchor plates (204).

3. A waterproof structure for civil engineering expansion joint according to claim 1, characterized in that: The two sets of inclined grooves (407) are symmetrically arranged. A filter plate (402) is provided above the inclined groove (407). The filter plate (402) and the pressure plate (401) are interlocked. The filter plate (402) and the top of the inclined groove (407) abut against each other.

4. A waterproof structure for civil engineering expansion joint according to claim 3, characterized in that: Multiple pressure-resistant plates (401) are arranged at equal intervals, and a rubber strip (403) abuts between two adjacent pressure-resistant plates (401), and the filter plate (402) abuts against the rubber strip (403).

5. A waterproof structure for civil engineering expansion joint according to claim 1, characterized in that: Two slots (406) are provided on the outer side of the side beam (202), and two inserts (405) are fixedly connected to the drainage strip (404). The inserts (405) engage with the adjacent slots (406), and the drainage strip (404) abuts against the side beam (202).

6. A waterproof structure for civil engineering expansion joints according to claim 5, characterized in that: The two side beams (202) are arranged symmetrically, and the bottom of the side beams (202) is provided with a displacement structure (3).

7. A waterproof structure for civil engineering expansion joints according to claim 1, characterized in that: The top of the side beam (202) has an "F" shaped cross-section, and the rubber strip (203) has a "V" shaped cross-section.

8. A waterproof structure for civil engineering expansion joints according to claim 6, characterized in that: The displacement structure (3) includes a sliding sleeve (301). Multiple sliding sleeves (301) are fixedly connected to the bottom surface of the side beam (202). The sliding sleeve (301) is slidably connected to the crossbeam (1). A slider (302) is fixedly connected inside the sliding sleeve (301). The slider (302) is slidably connected to the crossbeam (1). Both ends of the crossbeam (1) are fixedly connected to a stop block (304).

9. A waterproof structure for civil engineering expansion joints according to claim 8, characterized in that: The two adjacent sliding sleeves (301) are arranged symmetrically, and a rubber block (303) is fixedly connected between the inner wall of the sliding sleeve (301) and the crossbeam (1).

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