A waterproof structure for expansion joints of buildings and construction method thereof

Abstract

The present invention provides a building expansion joint waterproof structure and a construction method thereof, which relate to the technical field of building expansion joint waterproofing, and include a waterproof device, a drainage device and a monitoring device. A waterproof coil is provided on the top of the building, and a retaining wall is provided on the top of the building near the expansion joint. The outer surface of the retaining wall is provided with a waterproof coil. By changing the existing expansion joint waterproof structure and adding a monitoring device, the problems of the existing building expansion joint waterproofing treatment method being easy to be damaged and causing leakage, and the problem of leakage not being able to be discovered in time, causing losses, are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of waterproofing of building expansion joints, and in particular to a waterproofing structure of a building expansion joint and a construction method thereof. Background Art

[0002] In order to prevent building components from cracking or being damaged due to climate temperature changes, expansion joints are generally set up on buildings. During the construction phase, the expansion joints need to be waterproofed, especially the expansion joints on the top of the building. Due to the accumulation of water on the roof, leakage is prone to occur. The existing method of setting rubber waterstops at the expansion joints uses its high elastic energy to produce elastic deformation under various loads and expand in volume when it comes into contact with water, so it can play a strong sealing role. However, after the construction is completed, the rubber waterstop is prone to breakage due to the shrinkage of the concrete, resulting in water leakage problems in the later period. At the same time, it is easy to break due to exceeding the bearing limit when the temperature difference changes greatly, resulting in water leakage problems in the later period. At the same time, the existing expansion joint treatment method cannot detect leakage in time after it occurs, resulting in losses. Summary of the Invention

[0003] An embodiment of the present invention provides a building expansion joint waterproof structure and a construction method thereof. By changing the existing expansion joint waterproof structure and adding a monitoring device, the problems of the existing building expansion joint waterproof treatment method being easily damaged and causing leakage and the problem that leakage cannot be discovered in time after it occurs, resulting in losses, are solved.

[0004] In view of the above problems, the technical solution proposed by the present invention is:

[0005] A building expansion joint waterproof structure, comprising:

[0006] The top of the building is provided with a waterproof coiled material, the top of the building is provided with a retaining wall near the expansion joint, and the outer surface of the retaining wall is provided with a waterproof coiled material;

[0007] A waterproof device, comprising a bracket and a cover plate, wherein a guide rail is provided at the bottom of the cover plate, the bracket comprises a sliding seat, a connecting rod and a mounting plate, the mounting plate being provided on the inner side of the retaining wall, one end of the connecting rod being connected to the mounting plate, the other end of the connecting rod being detachably connected to the sliding seat, and the top of the sliding seat being slidably connected to the guide rail;

[0008] An elastic diaphragm is provided between the cover plate and the retaining wall;

[0009] A drainage device, comprising a drainage ditch and a drainage pipe, wherein the drainage ditch is made of a flexible material and is arranged in an inclined state inside the expansion joint, the edge of the drainage ditch is connected to the waterproof membrane, one end of the drainage pipe is connected to the lowest horizontal point of the drainage ditch, and the other end extends to the outside of the building;

[0010] The monitoring device includes a water diversion box, which is connected to the other end of the drain pipe. A water level switch b is provided on the side wall of the water diversion box. The water level switch b is electrically connected to a controller, and the controller is electrically connected to an alarm.

[0011] In order to better implement the technical solution of the present invention, the following technical measures are also adopted.

[0012] Furthermore, the sliding seat includes a sliding shaft and a clamping seat, the clamping seat includes a sleeve, the sleeve is slidably connected to the guide rail through the sliding shaft, and a spring, a push ring and several clamping beads are arranged in sequence from top to bottom inside the sleeve.

[0013] Furthermore, the other end of the connecting rod is inserted into the interior of the sleeve, which passes through the push ring. A slot is provided on the surface of the other end of the connecting rod. After the other end of the connecting rod is inserted into the interior of the sleeve, the card bead falls into the interior of the slot under the action of the spring.

[0014] Furthermore, a plurality of clamping beads are connected by an elastic rope passing through the centers of the beads to form a clamping ring, and the inner diameter of the clamping ring is smaller than the outer diameter of the other end of the connecting rod.

[0015] Furthermore, the push ring and the card bead are both made of iron.

[0016] Furthermore, it also includes a rebounder, which includes a paddle and an elastic telescopic rod. The elastic telescopic rod is arranged on the surface of the mounting plate, and the paddle is arranged at the bottom of the guide rail, and the paddle is in contact with the elastic telescopic rod.

[0017] Furthermore, a guide plate is provided at the edge of the cover plate, and a water level switch a is provided on the inner side of the guide plate. The water level switch a is electrically connected to the controller.

[0018] Furthermore, a water retaining plate is provided inside the water diversion box, and the water retaining plate is tiltedly arranged above the water level switch b.

[0019] Furthermore, the number of the brackets and the number of the rebounders are both two, and they are symmetrically distributed on the water retaining wall on both sides of the expansion joint.

[0020] A construction method for a building expansion joint waterproof structure comprises the following steps:

[0021] When bundling steel bars, bundle several steel bars vertically near the expansion joint at the top of the building, and lay waterproof membrane on the top of the building after pouring;

[0022] A formwork is set up within the range of several steel bars bundled in the vertical direction to cast a retaining wall;

[0023] Lay waterproof membrane on the surface of the retaining wall away from the expansion joint and connect it with the waterproof membrane laid on the top of the building;

[0024] Fill the gap between the retaining wall and the building roof with sealant and stick the curved retaining plate;

[0025] Use waterproof beading to set the drainage ditch to an angle of 1 degree and install it in the expansion joint between buildings. The edge of the drainage ditch is connected to the waterproof membrane. A drainage pipe with a 45-degree inclination is installed at the lowest point of the horizontal position of the drainage ditch, and the other end extends to the outside of the building.

[0026] Install the bracket, install the elastic diaphragm at the position of the cover plate close to the retaining wall by bonding, connect the cover plate to the bracket, and then connect the elastic diaphragm to the retaining wall by bonding.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Use brackets and cover plates to waterproof the roof of the building. During the thermal expansion and contraction of the building, the cover plate and the bracket can be displaced relative to each other, and the problem of exceeding the bearing limit due to concrete shrinkage and excessive temperature difference will not occur, and the waterproof effect of the expansion joint can be maintained.

[0029] 2. The water level switch b can be combined with the drainage device to collect the leaked water. When leakage occurs, the water level switch b detects the leakage and the controller sends out an early warning through the alarm, so that the leakage can be dealt with in time to avoid losses.

[0030] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the installation structure of the expansion joint waterproof structure disclosed in an embodiment of the present invention;

[0032] Figure 2 for Figure 1 A in the middle is an enlarged structural diagram;

[0033] Figure 3 for Figure 1 The enlarged structural diagram at B in the middle;

[0034] Figure 4 This is a schematic diagram of the installation structure of the water diversion box and the drainage pipe disclosed in an embodiment of the present invention;

[0035] Figure 5 A communication block diagram of a monitoring device disclosed in an embodiment of the present invention;

[0036] Figure 6 The present invention is a flowchart of a construction method for a building expansion joint waterproof structure disclosed in an embodiment of the present invention.

[0037] Figure numerals: 1. water retaining wall; 2. waterproof membrane; 3. building; 4. expansion joint; 5. waterproof device; 51. bracket; 511. sliding seat; 5111. sliding shaft; 5112. snap-fit ​​seat; 51121. sleeve; 51122. spring; 51123. push ring; 51124. card bead; 512. connecting rod; 513. mounting plate; 52. cover plate; 521. guide rail; 522. guide plate; 5221. inclined plane; 53. elastic diaphragm; 6. rebounder; 61. paddle; 62. elastic telescopic rod; 7. drainage device; 71. drainage ditch; 72. drainage pipe; 8. monitoring device; 81. water level switch a; 82. water level switch b; 83. water diversion box; 84. water retaining plate; 85. controller; 86. alarm; 9. curved water retaining plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Refer to the attached Figure 1-5 As shown, a waterproof structure for expansion joints of a building includes a waterproof device 5, a drainage device 7 and a monitoring device 8. During the thermal expansion and contraction process of the building 3, the drainage device 7 can be relatively displaced, and the problem of exceeding the bearing limit due to concrete shrinkage and excessive temperature difference will not occur, and the waterproof effect of the expansion joint 4 will be maintained. If leakage occurs at the expansion joint 4 of the roof of the building 3, the leaked water can be discharged to the outside of the building 3 through the drainage device 7, and the monitoring device 8 can monitor the leaked water. When leakage occurs, the monitoring device 8 issues an early warning to facilitate timely detection and treatment of the leakage.

[0040] Refer to the attached Figure 1As shown, a waterproof membrane 2 is provided on the top of the building 3, a retaining wall 1 is provided on the top of the building 3 near the expansion joint 4, and a waterproof membrane 2 is provided on the outer surface of the water retaining wall 1. The waterproof membrane 2 is laid on the side surface of the water retaining wall 1 away from the expansion joint 4 and is connected to the waterproof membrane 2 laid on the top of the building 3. The set water retaining wall 1 can enhance the water storage height of the roof to prevent rainwater from entering the expansion joint 4 when the rainfall is too heavy and the sewer pipe is not drained in time. At the same time, after laying the waterproof membrane 2 on the outside of the water retaining wall 1, the waterproof effect of the expansion joint 4 can be further enhanced.

[0041] In a preferred embodiment, the gap between the retaining wall 1 and the roof of the building 3 can be filled with sealant and a curved retaining plate 9 can be pasted to further enhance the waterproof performance of the retaining wall 1 and the roof of the building 3.

[0042] Refer to the attached Figure 1-4 As shown, the waterproof device 5 includes a bracket 51 and a cover plate 52, a guide rail 521 is provided at the bottom of the cover plate 52, the bracket 51 includes a sliding seat 511, a connecting rod 512 and a mounting plate 513, the mounting plate 513 is provided on the inner side of the retaining wall 1, one end of the connecting rod 512 is connected to the mounting plate 513, the other end of the connecting rod 512 is detachably connected to the sliding seat 511, and the top of the sliding seat 511 is slidably connected to the guide rail 521.

[0043] Specifically, during the thermal expansion and contraction of the building 3 , the cover plate 52 can slide on the bracket 51 without exceeding the bearing limit due to concrete shrinkage and excessive temperature difference, and the waterproof effect of the expansion joint 4 can be maintained.

[0044] In a preferred embodiment, an elastic diaphragm 53 is provided between the cover plate 52 and the water retaining wall 1 , and the elastic diaphragm 53 can further enhance the sealing of the expansion joint 4 and prevent external water from entering the expansion joint 4 through the gap between the cover plate 52 and the water retaining wall 1 .

[0045] Furthermore, it also includes a rebounder 6, which includes a paddle 61 and an elastic telescopic rod 62. The elastic telescopic rod 62 is arranged on the surface of the mounting plate 513, and the paddle 61 is arranged at the bottom of the guide rail 521. The paddle 61 is in contact with the elastic telescopic rod 62. When the cover plate 52 can slide on the bracket 51, the rebounder 6 can restore the cover plate 52 to its original position.

[0046] For example, when the rainfall is too heavy, the elastic diaphragm 53 can block the accumulated water to prevent water from flowing into the expansion joint 4.

[0047] Refer to the attached Figure 1-4As shown, the sliding seat 511 includes a sliding shaft 5111 and a clamping seat 5112. The clamping seat 5112 includes a sleeve 51121. The sleeve 51121 is slidingly connected to the guide rail 521 through the sliding shaft 5111. A spring 51122, a push ring 51123 and several clamping beads 51124 are arranged in sequence from top to bottom inside the sleeve 51121.

[0048] It should be noted that a plurality of clamping beads 51124 are connected by an elastic rope passing through the center of the beads to form a clamping ring. The inner diameter of the clamping ring is slightly smaller than the outer diameter of the other end of the connecting rod 512, and the outer diameter of the clamping ring is larger than the inner diameter of the push ring 51123.

[0049] Specifically, the other end of the connecting rod 512 is inserted into the interior of the sleeve 51121, which passes through the push ring 51123. A slot is provided on the surface of the other end of the connecting rod 512. After the other end of the connecting rod 512 is inserted into the interior of the sleeve 51121, under the action of the spring 51122, the card bead 51124 falls into the interior of the slot. When the other end of the connecting rod 512 is pulled in the reverse direction, the card bead 51124 limits the position of the connecting rod 512 to prevent it from falling out from the interior of the sleeve 51121.

[0050] In a preferred embodiment, the push ring 51123 and the card bead 51124 are both made of iron. When the cover 52 needs to be removed, a strong magnet is used to magnetically attract the push ring 51123 and the card bead 51124, and the push ring 51123 and the card bead 51124 are adsorbed to the top wall of the sleeve 51121. At this time, the other end of the connecting rod 512 can be removed from the inside of the sleeve 51121. The effect of the above setting is that the cover 52 and the bracket 51 are detachable, which is convenient for installation. At the same time, there is no need to use bolts or other fixing methods on the cover 52, which can enhance its waterproofness.

[0051] Refer to the attached Figure 1 and 4 As shown, the drainage device 7 includes a drainage ditch 71 and a drainage pipe 72. The drainage ditch 71 is made of a flexible material, specifically a rubber sheet, such as a butyl rubber sheet or a nitrile rubber sheet, and is arranged in an inclined state inside the expansion joint 4. The edge of the drainage ditch 71 is connected to the waterproof membrane 2. One end of the drainage pipe 72 is connected to the lowest horizontal point of the drainage ditch 71, and the other end extends to the outside of the building 3.

[0052] Specifically, the drainage ditch 71 can collect the seepage water and discharge it to the outside of the building 3 through the drainage pipe 72, which can further avoid losses after the seepage occurs.

[0053] Refer to the attached Figure 1-5As shown, the monitoring device 8 includes a water diversion box 83, which is connected to the other end of the drain pipe 72. A water level switch b82 is provided on the side wall of the water diversion box 83. The water level switch b82 is electrically connected to a controller 85, and the controller 85 is electrically connected to an alarm 86.

[0054] Specifically, the water level switch b82 can be combined with the drainage device 7 to collect leaked water. When leakage occurs, after the water level switch b82 detects water leakage, the controller 85 sends an early warning through the alarm 86, so as to facilitate timely treatment of the water leakage and avoid losses.

[0055] Refer to the attached Figure 1 、 3 As shown in FIG5 , a guide plate 522 is further provided at the edge of the cover plate 52 , and a water level switch a81 is provided on the inner side of the guide plate 522 . The water level switch a81 is electrically connected to the controller 85 .

[0056] Specifically, when the water level switch a81 detects water accumulation, the controller 85 sends an early warning message through the alarm 86 to facilitate the inspection of the cause of the water accumulation to avoid leakage caused by excessive water accumulation.

[0057] For example, after the drain outlet is blocked by debris, the water level on the roof of building 3 rises to the water level switch a81. At this time, the controller 85 sends an early warning message through the alarm 86. After receiving the early warning message, the technical condition of the roof of building 3 can be checked, and the drain outlet can be cleared of debris to drain the accumulated water, so as to prevent leakage caused by further rising water level.

[0058] Refer to the attached Figure 1-6 As shown, the present invention also proposes a construction method for a building expansion joint waterproof structure, comprising the following steps:

[0059] S1, when bundling steel bars, a plurality of steel bars are bundled vertically near the expansion joint 4 at the top of the building 3, and a waterproof membrane 2 is laid on the top of the building 3 after pouring;

[0060] S2, setting up formwork within the range of several steel bars bundled in the vertical direction and casting a retaining wall 1;

[0061] S3, laying a waterproof membrane 2 on the surface of the retaining wall 1 away from the expansion joint 4 and connecting it to the waterproof membrane 2 laid on the top of the building 3;

[0062] S4, filling the gap between the retaining wall 1 and the roof of the building 3 with sealant and pasting the curved retaining plate 9;

[0063] S5: Use waterproof battens to set the drainage ditch 71 to an angle of 1 degree and install it in the expansion joint 4 between the buildings 3. The edge of the drainage ditch 71 is connected to the waterproof membrane 2. A drainage pipe 72 is installed at a 45-degree angle at the lowest point of the horizontal position of the drainage ditch 71, and the other end extends to the outside of the building 3.

[0064] S6, install the bracket 51, and install the elastic diaphragm 53 on the cover plate 52 near the water retaining wall 1 by bonding. The elastic diaphragm 53 is made of a rubber sheet, such as a butyl rubber sheet or a nitrile rubber sheet. After connecting the cover plate 52 to the bracket 51, the elastic diaphragm 53 is connected to the water retaining wall 1 by bonding.

[0065] In one embodiment, when replacing the cover plate 52, after cutting the connection between the elastic diaphragm 53 and the water retaining wall 1, a strong magnet is used to adsorb the push ring 51123 and the card bead 51124 to the top wall of the sleeve 51121. At this time, the other end of the connecting rod 512 can be removed from the inside of the sleeve 51121. After removing the cover plate 52, a new cover plate 52 is replaced, and the elastic diaphragm 53 is connected to the water retaining wall 1 by bonding.

[0066] The above embodiment can achieve the effect of facilitating the replacement of the cover plate 52. When the cover plate 52 is aged or damaged, it is convenient to replace it, and it is also convenient to repair or replace the drainage device 7.

[0067] Specifically, a bracket 51 and a cover plate 52 are used to waterproof the roof of the building 3. During the thermal expansion and contraction process of the building 3, the cover plate 52 and the bracket 51 can be displaced relative to each other, and the problem of exceeding the bearing limit due to concrete shrinkage and excessive temperature difference will not occur. The waterproof effect of the expansion joint 4 can be maintained. The set water level switch b82 can be combined with the drainage device 7 to collect the leaked water. When leakage occurs, after the water level switch b82 detects water seepage, the controller 85 sends an early warning through the alarm 86, so that the water seepage can be handled in time to avoid losses. By changing the existing waterproof structure of the expansion joint 4 and adding the monitoring device 8, the problems of the existing waterproof treatment method of the expansion joint 4 of the building 3 being easy to be damaged and causing leakage and the problem of not being able to be discovered in time after leakage occurs, resulting in losses, are solved.

[0068] It should be noted that the specific models and specifications of the water level switch a81, water level switch b82, controller 85 and alarm 86 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0069] The power supply and principles of the water level switch a81, the water level switch b82, the controller 85 and the alarm 86 are clear to those skilled in the art and will not be described in detail here.

[0070] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A building expansion joint waterproof structure, arranged on the top of a building (3), characterized in that: include: A waterproof coiled material (2) is provided on the top of the building (3); a water retaining wall (1) is provided on the top of the building (3) near the expansion joint (4); and a waterproof coiled material (2) is provided on the outer surface of the water retaining wall (1); A waterproof device (5) comprises a bracket (51) and a cover plate (52), wherein a guide rail (521) is provided at the bottom of the cover plate (52), the bracket (51) comprises a sliding seat (511), a connecting rod (512) and a mounting plate (513), the mounting plate (513) being provided on the inner side of the retaining wall (1), one end of the connecting rod (512) being connected to the mounting plate (513), the other end of the connecting rod (512) being detachably connected to the sliding seat (511), and the top of the sliding seat (511) being slidably connected to the guide rail (521); An elastic diaphragm (53) is provided between the cover plate (52) and the water retaining wall (1); A drainage device (7) comprising a drainage ditch (71) and a drainage pipe (72), wherein the drainage ditch (71) is made of a flexible material and is arranged in an inclined state inside the expansion joint (4), the edge of the drainage ditch (71) is connected to the waterproof membrane (2), one end of the drainage pipe (72) is connected to the lowest horizontal position of the drainage ditch (71), and the other end extends to the outside of the building (3); The monitoring device (8) includes a water diversion box (83), the water diversion box (83) is connected to the other end of the drainage pipe (72), a water level switch b (82) is provided on the side wall of the water diversion box (83), the water level switch b (82) is electrically connected to a controller (85), and the controller (85) is electrically connected to an alarm (86).

2. A building expansion joint waterproof structure according to claim 1, characterized in that: The sliding seat (511) comprises a sliding shaft (5111) and a clamping seat (5112). The clamping seat (5112) comprises a sleeve (51121). The sleeve (51121) is slidably connected to the guide rail (521) via the sliding shaft (5111). A spring (51122), a push ring (51123) and a plurality of clamping beads (51124) are sequentially arranged inside the sleeve (51121) from top to bottom.

3. A building expansion joint waterproof structure according to claim 2, characterized in that: The other end of the connecting rod (512) is inserted into the interior of the sleeve (51121) and passes through the push ring (51123). A card slot is provided on the surface of the other end of the connecting rod (512). After the other end of the connecting rod (512) is inserted into the interior of the sleeve (51121), the card bead (51124) falls into the interior of the card slot under the action of the spring (51122).

4. A building expansion joint waterproof structure according to claim 2, characterized in that: A plurality of clamping beads (51124) are connected by an elastic rope passing through the center of the beads to form a clamping ring, and the inner diameter of the clamping ring is smaller than the outer diameter of the other end of the connecting rod (512).

5. The building expansion joint waterproof structure according to claim 2, characterized in that: The push ring (51123) and the card bead (51124) are both made of iron.

6. A building expansion joint waterproof structure according to any one of claims 1 to 5, characterized in that: The device further comprises a rebounder (6), the rebounder (6) comprising a paddle (61) and an elastic telescopic rod (62), the elastic telescopic rod (62) being arranged on the surface of the mounting plate (513), the paddle (61) being arranged at the bottom of the guide rail (521), and the paddle (61) being in contact with the elastic telescopic rod (62).

7. A building expansion joint waterproof structure according to any one of claims 1 to 5, characterized in that: A guide plate (522) is further provided at the edge of the cover plate (52), and a water level switch a (81) is provided on the inner side of the guide plate (522). The water level switch a (81) is electrically connected to the controller (85).

8. A building expansion joint waterproof structure according to any one of claims 1 to 5, characterized in that: A water retaining plate (84) is further provided inside the water diversion box (83), and the water retaining plate (84) is obliquely provided above the water level switch b (82).

9. The building expansion joint waterproof structure according to claim 6, characterized in that: The number of the brackets (51) and the number of the rebounders (6) are both two, and they are symmetrically distributed on the water retaining wall (1) on both sides of the expansion joint (4).

10. A construction method for a building expansion joint waterproof structure, using the building expansion joint waterproof structure according to claim 1, characterized in that: The following steps are involved: When tying the steel bars, a plurality of steel bars are tied vertically at the top of the building (3) near the expansion joint (4), and a waterproofing membrane (2) is laid on the top of the building (3) after pouring; A formwork is set up within the range of a plurality of steel bars bundled in a vertical direction to cast a retaining wall (1); Laying a waterproof roll (2) on the surface of the retaining wall (1) away from the expansion joint (4) and connecting it to the waterproof roll (2) laid on the top of the building (3); Filling the gap between the retaining wall (1) and the roof of the building (3) with sealant and pasting the curved retaining plate (9); A drainage ditch (71) is installed in an expansion joint (4) between buildings (3) by using a waterproof pressure strip, with an inclination angle of 1 degree. The edge of the drainage ditch (71) is connected to the waterproof membrane (2). A drainage pipe (72) is installed at a 45-degree inclination at the lowest point of the horizontal position of the drainage ditch (71), and the other end extends to the outside of the building (3); The bracket (51) is installed, and the elastic diaphragm (53) is installed by bonding at a position of the cover plate (52) close to the retaining wall (1). After the cover plate (52) is connected to the bracket (51), the elastic diaphragm (53) is connected to the retaining wall (1) by bonding.

Images