A seismic trench cover device and construction method
By designing a seismic isolation trench cover device consisting of stainless steel baffles, polytetrafluoroethylene plates, and an electric cleaning system, the problems of seismic isolation trench blockage and cover plate drop were solved, achieving stable sliding and efficient cleaning, thus improving seismic isolation efficiency and construction accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG TIANYUAN CONSTR MASCH CO LTD
- Filing Date
- 2023-08-02
- Publication Date
- 2026-06-23
AI Technical Summary
Dust and impurities can easily clog the isolation trench, affecting its isolation effect. The cover plate itself can easily fall off and jam the isolation trench during an earthquake, affecting its isolation function.
A vibration isolation trench cover device was designed, including a stainless steel baffle, a polytetrafluoroethylene plate, a cover body, stiffening ribs, and a drainage trench plate, which are connected by embedded parts. Combined with a cleaning system driven by a pull rod, spring, and electric motor, the cover can be slidable and cleaned.
This achieves stable sliding of the cover plate, avoiding blockage and falling, improving seismic isolation efficiency and construction accuracy, and ensuring the free sliding and cleaning effect of the seismic isolation structure.
Smart Images
Figure CN117188530B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building seismic isolation technology, specifically to a seismic isolation trench cover device and its construction method. Background Technology
[0002] Seismic isolation and damping technology is an important measure for preventing and mitigating earthquake disasters, and it can effectively improve the seismic fortification capacity of building projects. With the promotion and application of seismic isolation and damping technology, more and more building projects are adopting seismic isolation and damping. Seismic isolation buildings need to be equipped with seismic isolation trenches around the building to isolate the seismic isolation building from the surrounding soil and ground. When the stepped ground at the location of the seismic isolation trench is connected, a cover plate body needs to be installed on the upper part of the seismic isolation trench. The cover plate body of the seismic isolation trench is an important auxiliary component of the seismic isolation building. The cover plate body of the seismic isolation trench and the retaining wall of the seismic isolation trench can move freely relative to each other under the action of earthquake.
[0003] The construction technology of the seismic isolation trench joint is often the key and difficult point in the seismic isolation construction of the project, which is related to the quality of the seismic isolation of the building. During the construction process, the structural limitations often cannot meet the construction requirements, and various complex methods are required to make modifications, which leads to delays in the construction progress.
[0004] A prefabricated assembled seismic isolation trench cover body device, disclosed in CN112575821A, includes: a first wall; a second wall, the second wall and the first wall being spaced apart to form a seismic isolation trench; a pre-embedded steel plate, the pre-embedded steel plate being embedded in the first wall and fixed by anchoring steel bars; a connecting ear, the connecting ear being fixed to the side of the pre-embedded steel plate away from the anchoring steel bars, the lower end of which is integrally formed with a groove; and an upper cover body, the upper cover body being erected above the seismic isolation trench, one end of which overlaps the second wall, and the other end is clamped in the groove. The connecting ear is welded to the pre-embedded steel plate or bolted to the pre-embedded steel plate. The gap at the connection between the upper cover body and the clamping ear is sealed with sealant. A flexible material is laid at the overlap between the upper cover body and the second wall. The prefabricated assembled seismic isolation trench cover body device of the present invention has a pre-embedded steel plate embedded in the first wall by anchoring steel bars. The connecting lug is connected to the pre-embedded steel plate by welding or bolting. One end of the upper cover body is inserted into the connecting lug and the connection is sealed with sealant to achieve waterproofing. It is also easy to disassemble and maintain. The other end of the upper cover body is covered with flexible material at the joint with the second wall so that it will not hinder the building from sliding to the surrounding area during an earthquake.
[0005] However, there are some problems in the process of using the above-mentioned vibration isolation trench cover plate device. For example, during the use of the device, a lot of dust and impurities are easily left in the vibration isolation trench. As the usage time increases, the vibration isolation trench is easily blocked by dust and impurities, which will affect the vibration isolation effect of the entire vibration isolation trench.
[0006] A seismic isolation trench device with automatic coordinated deformation, disclosed in CN204983216U, includes a trench cover body, a first rolling mechanism, a second rolling mechanism, a third rolling mechanism, a sliding sleeve fixed to the main building structure, and a sliding groove. The sliding groove is a side-opening frame shape with a hook-shaped portion at its bottom. The second and first rolling mechanisms are respectively horizontally and vertically mounted on the hook-shaped portion. The trench cover body is L-shaped, and the third rolling mechanism is horizontally mounted on the outer side of the L-shaped folded edge of the trench cover body. The sliding sleeve and the sliding groove are spaced apart and facing each other. The horizontal end of the trench cover body is located inside the sliding sleeve, and the folded edge end is located between the inner wall of the sliding groove and the hook-shaped portion. This seismic isolation trench device has a wide range of applications and can be used for seismic isolation trench treatment between two adjacent seismically isolated buildings or between seismically isolated and non-seismically isolated buildings. It is particularly suitable for walkways, evacuation routes, and driveways that cross seismic isolation trenches and have functional connectivity. The seismic isolation trench device uses the trench cover plate to cooperate with each rolling mechanism and sliding groove. It has low friction and can automatically adapt to the relative displacement and torsion in the X and Y directions between the two buildings. It does not hinder the movement of the buildings and ensures that the building surface is not damaged within the relevant range.
[0007] However, there are also some problems in the use of the above-mentioned seismic isolation trench device. For example, the quality of the cover plate body will also affect the seismic isolation effect of the building. When an earthquake occurs, when the seismic isolation layer shifts, the cover plate body will fall directly into the seismic isolation trench, jamming the seismic isolation trench and affecting the seismic isolation function. At the same time, it will form a huge gap, and pedestrians are likely to step into it and fall.
[0008] Therefore, it is necessary to design a seismic isolation trench cover device and construction method to address the above problems. Summary of the Invention
[0009] The purpose of this invention is to provide a seismic isolation trench cover plate device and construction method to solve the problems mentioned in the background art, such as the seismic isolation trench being easily blocked by dust and impurities, which affects the seismic isolation effect of the entire seismic isolation trench, and the cover plate body falling directly into the seismic isolation trench when the seismic isolation layer shifts, thus blocking the seismic isolation trench and affecting the seismic isolation function.
[0010] To achieve the above objectives, the present invention provides the following technical solution: a seismic isolation trench cover device, comprising a seismic isolation trench disposed between the main building and the retaining wall and steps, wherein a drainage ditch board is provided inside the seismic isolation trench, and the upper end of the retaining wall is provided with concrete;
[0011] Also includes:
[0012] The concrete has a stainless steel baffle at its upper end, and the right side of the stainless steel baffle is in contact with the square rail.
[0013] A polytetrafluoroethylene (PTFE) sheet is connected to the step via a first embedded part and a second embedded part. Both the first and second embedded parts are driven into the step with pins. Structural adhesive is provided on the left side of the PTFE sheet, and the lower end of the PTFE sheet is attached to the upper end of the step.
[0014] The cover plate body has an L-shaped end and a rectangular groove at the other end. The inner surface of the cover plate body is in close contact with the polytetrafluoroethylene sheet. The L-shaped end of the cover plate body is connected with structural adhesive, and the grooved end of the cover plate body is tightly fastened to the square rail. A gap is reserved at the grooved end of the cover plate body to place flexible filling material, and stiffening ribs are provided on the back of the cover plate body.
[0015] The square rail is connected to the floor slab line through a third embedded part, and the upper part of the square rail is closely attached to the groove opened on the cover plate body;
[0016] The lower end of the floor is in contact with the upper end of the stiffening rib;
[0017] A pull rod passes through the retaining wall, and the pull rod is in contact with the drainage ditch board through a groove at the lower end of the drainage ditch board;
[0018] A pull spring is installed on the pull rod, and the pull spring is connected to the retaining wall.
[0019] The second baffle is installed in the groove opened in the retaining wall.
[0020] Preferably, the surface of the stainless steel baffle is smooth, and a triangular groove is provided in the middle of the stainless steel baffle. This structure prevents excessive dust from adhering to the stainless steel baffle.
[0021] Preferably, the stiffening ribs are welded at equal intervals to the upper end of the cover plate body, and the stiffening ribs can increase the adhesion between the cover plate body and the concrete. As a result, it is convenient to make a stable connection between the cover plate body and the concrete.
[0022] Preferably, the flexible filler material is a mixture of a special adhesive and a flexible material, and the flexible filler material is disposed between the cover plate body and the concrete.
[0023] Preferably, the lower left and right sides of the polytetrafluoroethylene plate are provided with limiting plates, and the limiting plates are in close contact with the first additional baffle. The first additional baffle is installed in the groove opened on the step. With the above structure, it is convenient to lock and fix the limiting plates by the locking plate.
[0024] Preferably, the first added baffle is provided with receiving plates symmetrically arranged on the left and right sides of its inner surface, and a push spring is installed on the inner surface of the first added baffle. The push spring is installed on the locking plate, and the locking plate is configured as a trapezoidal plate structure. With the above structure, it is convenient to push the first added baffle by the push spring.
[0025] Preferably, the locking plate is symmetrically provided with limiting sliders, and the outer surface of the limiting sliders is made smooth. The limiting sliders are slidably connected to the receiving plate through the grooves opened on the receiving plate. With the above structure, it is convenient to limit the movement range of the locking plate under the action of the limiting sliders.
[0026] Preferably, a protective ball bearing is attached to the drainage ditch plate, and the protective ball bearing is rotatably mounted on the movable plate. A cleaning brush plate is installed at the lower end of the movable plate, and cleaning bristles are installed on the cleaning brush plate. The cleaning bristles are in contact with the drainage ditch plate. With the above structure, it is convenient to clean the drainage ditch plate by moving the cleaning brush plate and the cleaning bristles.
[0027] Preferably, the movable plate has a plate-like structure with a motor, and a rotating gear is provided on the rotating shaft installed at the output end of the motor. The rotating gear meshes with the second baffle through a gear tooth structure provided on the second baffle. With the above structure, it is convenient for the rotating gear to start moving as it rotates.
[0028] Preferably, the method of using the vibration isolation trench cover device includes the following process:
[0029] S1: Before construction, remove oil, attachments, dust and other debris from the concrete surface to ensure that the surface is dry and flat to prevent poor adhesion. Use a total station to accurately measure and position the cover plate. Inspect the cover plate body before installation.
[0030] S2: Prepare the third embedded part with the opening, check the elevation and axis dimensions, determine the size and position of the embedded part according to the design requirements, the hole diameter and edge distance should meet the quality requirements, use studs to fix the third embedded part to the concrete, weld the square rail to the embedded part, and after the construction is completed, the square rail needs to be protected to avoid bending.
[0031] S3: Before construction begins, the surveying engineer will lay out the lines of the prefabricated drainage ditch according to the drawings and check the overhang length of the retaining wall panels. After everything is completed, the prefabricated drainage ditch panels are placed at the correct height. At this point, the lower end of the drainage ditch panel is in contact with the pull rod, allowing the pull rod to limit the front and rear movement of the drainage ditch panel and prevent it from moving forward or backward during use. The stainless steel baffle is then fixed to the upper part of the drainage ditch. The stainless steel baffle is processed and bent into a "V" shape in the processing yard. After installation, it is necessary to check for any loose overlaps at the drainage points. When it is necessary to clean the inner surface of the drainage ditch panel, the movable panel is placed... At the upper end of the drainage ditch plate, the rotating gear begins to connect with the gear structure installed on the second baffle, and then the motor starts to work. Because the output end of the motor is connected to the rotating shaft, the rotating shaft begins to rotate. Because the rotating shaft is equipped with a rotating gear, the rotating gear begins to rotate. As the rotating gear rotates, under the action of the gear structure installed on the second baffle, the moving plate begins to move. Because a cleaning brush plate is installed at the lower end of the moving plate, the cleaning bristles installed on the cleaning brush plate begin to adhere to the inner surface of the drainage ditch plate, thereby achieving brushing and cleaning of the inner surface of the drainage ditch plate.
[0032] S4: According to design requirements, use studs to connect the first and second embedded parts to the step concrete. Transport the PTFE sheet to the construction site, and protect easily contaminated areas with adhesive tape or plastic film to prevent damage. Grind the contact surfaces of the PTFE sheet and the cover plate body to ensure a smooth surface. Place the PTFE sheet on the step and press it down. At this time, the limiting plate installed at the lower end of the PTFE sheet begins to adhere to the locking plate and compress it. The locking plate then begins to move under the action of the limiting slider. Sliding, that is, the push spring installed on the locking plate begins to be compressed and deformed. When the limiting plate and the inner surface of the lower end of the first added baffle are in contact with each other, under the action of the push spring restoring its deformation, the push spring begins to push the locking plate, that is, the locking plate begins to move towards the limiting plate. At this time, the locking plate begins to lock and fix the limiting plate. Then, the polytetrafluoroethylene plate is connected and fixed to the first embedded part, the second embedded part, and the step. During fixing, the positioning line is laid to ensure that the connecting parts are installed straight and do not deviate. The allowable deviation must meet the design requirements and construction specifications.
[0033] S5: On the upper part of the seismic isolation trench outside the main building, the cover plate body is constructed. One end of the cover plate body is fixed to the square rail, and the other end is tightly attached to the polytetrafluoroethylene plate. Before fastening the plate, check the dimensions according to the design requirements. When installing, align the plate end with the position line, lower it slowly, and adjust the position of the cover plate body after it is stable. Check that the deviation is within the allowable deviation range before proceeding to the next construction process. The stiffening ribs are fixed to the upper part of the cover plate body. After assembly, it can become a whole. The cover plate body can slide with the displacement of the main building body.
[0034] S6: Check whether the gap size at the front and back of the cover plate body meets the design requirements. Clean the gap, apply structural adhesive to the front end, add flexible filler material to the rear end, and conduct a compatibility retest on the adhesive application site. The adhesive should be fine and glossy, free of foreign matter, and free of crusting and peeling.
[0035] S7: Complete the construction of the entire drainage ditch cover body in sequence. The construction method of the top surface of the cover body is completed together with the ground construction of the building.
[0036] Compared with the prior art, the beneficial effects of the present invention are: the seismic isolation trench cover plate device and construction method, the cover plate body structure is placed between the steps and the building, which does not affect the subsequent building surface construction. After an earthquake, the cover plate body can slide freely without falling, and at the same time, it can reduce the misoperation of construction personnel, improve the construction accuracy, ensure that the main body of the seismic isolation building and the surrounding enclosure structure can slide freely, and improve the seismic isolation efficiency of the seismic isolation structure.
[0037] 1. The structure consisting of a limiting plate, a first mounting baffle, a receiving plate, a pushing spring, a locking plate, and a limiting slider can achieve locking and fixing between the PTFE plate and the step under the action of the locking plate. That is, during the installation process, the PTFE plate can be pre-positioned to avoid the PTFE plate from shifting during the subsequent fixing and installation process, thus ensuring the stability of the PTFE plate installation.
[0038] 2. The structure consists of protective balls, a moving plate, a cleaning brush plate, cleaning bristles, a motor, a rotating shaft, and a rotating gear. The moving plate is driven by the rotation of the motor, which in turn moves the cleaning brush plate and cleaning bristles. As the cleaning brush plate and cleaning bristles move, the inner surface of the drainage ditch plate is brushed and cleaned, preventing excessive dust and impurities from clogging the drainage ditch plate and affecting its normal drainage effect. Attached Figure Description
[0039] Figure 1 This is a schematic diagram of the main cross-sectional structure of the polytetrafluoroethylene sheet of the present invention;
[0040] Figure 2 This is a schematic diagram of the three-dimensional structure of the polytetrafluoroethylene sheet of the present invention;
[0041] Figure 3 This is a schematic diagram of the top cross-sectional structure of the stiffening rib of the present invention;
[0042] Figure 4 This is a schematic diagram of the main cross-sectional structure of the rotating gear of the present invention;
[0043] Figure 5 This is a schematic diagram of the front cross-sectional structure of the limiting plate of the present invention;
[0044] Figure 6 This is a top view cross-sectional structural diagram of the rotating gear of the present invention;
[0045] Figure 7 This is a schematic diagram of the bottom cross-sectional structure of the limiting plate of the present invention;
[0046] Figure 8 This is a schematic diagram of the three-dimensional structure of the cleaning brush plate of the present invention.
[0047] In the diagram: 1. PTFE sheet; 101. Limiting plate; 2. Cover plate body; 3. Stiffening rib; 4. Square rail; 5. Structural adhesive; 6. Step; 601. First mounting baffle; 602. Supporting plate; 603. Push spring; 604. Locking plate; 605. Limiting slider; 7. Stainless steel baffle; 8. Drainage ditch plate; 801. Protective ball bearing; 802. Moving plate; 8021. Cleaning brush; 8022. Cleaning bristles; 803. Motor; 804. Rotating shaft; 805. Rotating gear; 9. Flexible filling material; 10. Retaining wall; 1001. Pull rod; 1002. Pull spring; 1003. Second mounting baffle; 11. Concrete; 12. Floor; 13. First embedded part; 14. Second embedded part; 15. Third embedded part. Detailed Implementation
[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0049] Please see Figure 1-8This invention provides a technical solution: a seismic isolation trench cover device and construction method, comprising a seismic isolation trench located between the main building and the retaining wall 10 and the step 6, wherein a drainage ditch 8 is provided inside the seismic isolation trench, and a concrete 11 is provided at the upper end of the retaining wall 10; further comprising: a concrete 11, wherein a stainless steel baffle 7 is provided at the upper end, and the right side of the stainless steel baffle 7 is in contact with the square rail 4; a polytetrafluoroethylene (PTFE) plate 1, which is connected to the step 6 through a first embedded part 13 and a second embedded part 14, wherein the first embedded part 13 and the second embedded part 14 are both driven into the step 6 with pins, a structural adhesive 5 is provided on the left side of the PTFE plate 1, and the lower end of the PTFE plate 1 is in contact with the upper end of the step 6; a cover plate body 2, one end of which is L-shaped and the other end is a rectangular groove, and the inner surface of the cover plate body 2 is in close contact with the PTFE plate 1, and the cover... The L-shaped end of the slab body 2 is connected to the structural adhesive 5, and the grooved end of the cover plate body 2 is tightly fastened to the square rail 4. A gap is reserved at the grooved end of the cover plate body 2 to place the flexible filling material 9, and a stiffening rib 3 is provided on the back of the cover plate body 2; the square rail 4 is connected to the floor slab through the third embedded part 15, and the upper part of the square rail 4 is tightly attached to the groove opened on the cover plate body 2; the floor 12 has its lower end attached to the upper end of the stiffening rib 3; the stainless steel baffle 7 has a smooth surface, and a triangular groove is provided in the middle of the stainless steel baffle 7; the stiffening rib 3 is welded to the upper end of the cover plate body 2 at a certain distance, and the stiffening rib 3 can increase the adhesion between the step 6 and the concrete 11; the flexible filling material 9 is a mixture of special adhesive and flexible material, and the flexible filling material 9 is placed between the cover plate body 2 and the concrete 11;
[0050] A pull rod 1001 passes through the retaining wall 10 and is fitted to the drainage ditch plate 8 through a groove at the lower end of the drainage ditch plate 8. A pull spring 1002 is installed on the pull rod 1001 and is connected to the retaining wall 10. A second additional baffle 1003 is installed in a groove on the retaining wall 10. Limiting plates 101 are provided on both the left and right sides of the lower end of the polytetrafluoroethylene plate 1, and the limiting plates 101 are fitted to the first additional baffle 601. The first additional baffle 601 is installed in a groove on the step 6. A receiving plate 602 is symmetrically provided on both the left and right sides of the inner surface of the first additional baffle 601, and a push spring 603 is installed on the inner surface of the first additional baffle 601. The push spring 603 is installed on a locking plate 604, and the locking plate 604 is a trapezoidal plate. The structure is as follows: A limiting slider 605 is symmetrically arranged on the locking plate 604, and the outer surface of the limiting slider 605 is smooth. The limiting slider 605 is slidably connected to the receiving plate 602 through a groove on the receiving plate 602. A protective ball bearing 801 is attached to the drainage ditch plate 8, and the protective ball bearing 801 is rotatably mounted on the moving plate 802. A cleaning brush plate 8021 is installed at the lower end of the moving plate 802, and cleaning bristles 8022 are installed on the cleaning brush plate 8021, and the cleaning bristles 8022 are in close contact with the drainage ditch plate 8. A motor 803 is arranged on the plate-like structure of the moving plate 802, and a rotating gear 805 is arranged on the rotating shaft 804 installed at the output end of the motor 803. The rotating gear 805 meshes with the second additional baffle 1003 through a gear tooth structure provided on the second additional baffle 1003.
[0051] A construction method for a seismic isolation trench cover device, the process flow of which includes:
[0052] S1: Before construction, remove oil, attachments, dust and other debris from the concrete surface to ensure that the surface is dry and flat to prevent poor adhesion. Use a total station to accurately measure and position the cover plate body 2 before installation.
[0053] S2: Prepare the third embedded part 15 with the hole, check the elevation and axis dimensions, determine the size and position of the embedded part according to the design requirements, the hole diameter and edge distance should meet the quality requirements, use studs to fix the third embedded part 15 on the concrete 11, weld the square rail 4 to the third embedded part 15, after construction, the square rail 4 needs to be protected to avoid bending.
[0054] S3: Before construction begins, the surveying engineer lays out the alignment of the finished drainage ditch according to the drawings and checks the overhang length of the retaining wall 10. After everything is completed, the finished drainage ditch plate 8 is placed at the correct height. At this time, the lower end of the drainage ditch plate 8 is in contact with the pull rod 1001, so the pull rod 1001 can limit the drainage ditch plate 8 to move forward and backward during use. The stainless steel baffle 7 is then fixed to the upper part of the drainage ditch. The stainless steel baffle 7 is processed and bent into a "V" shape in the processing yard. After installation, it is necessary to check for any loose overlap at the drainage point. When it is necessary to clean the inner surface of the drainage ditch plate 8, the moving plate 802 is placed on the upper end of the drainage ditch plate 8. At this time, the gear 805 is rotated. It then begins to connect with the gear structure installed on the second baffle 1003, and then the motor 803 starts to work. Since the output end of the motor 803 is connected to the rotating shaft 804, the rotating shaft 804 begins to rotate. Since the rotating shaft 804 is equipped with a rotating gear 805, the rotating gear 805 begins to rotate. As the rotating gear 805 rotates, under the action of the gear structure installed on the second baffle 1003, the moving plate 802 begins to move. Since the lower end of the moving plate 802 is equipped with a cleaning brush plate 8021, the cleaning bristles 8022 installed on the cleaning brush plate 8021 begin to adhere to the inner surface of the drainage ditch plate 8, thereby enabling the inner surface of the drainage ditch plate 8 to be cleaned by brushing.
[0055] S4: According to the design requirements, use studs to connect the first embedded part 13 and the second embedded part 14 to the concrete of the step 6. Transport the PTFE plate 1 to the construction site. Protect easily contaminated areas with adhesive tape or plastic film to prevent damage. Grind the contact surface between the PTFE plate 1 and the cover plate body 2 to ensure a smooth surface. Place the PTFE plate 1 on the step 6 and press it down. At this time, the limiting plate 101 installed at the lower end of the PTFE plate 1 begins to adhere to the locking plate 604 and compresses the locking plate 604. The locking plate 604 then begins to slide under the action of the limiting slider 605, thus locking. The push spring 603 installed on plate 604 begins to be compressed and deformed. When the inner surface of the lower end of the limiting plate 101 and the first added baffle 601 are in contact with each other, the push spring 603 begins to push the locking plate 604 under the action of restoring its deformation. That is, the locking plate 604 begins to move towards the limiting plate 101. At this time, the locking plate 604 begins to lock and fix the limiting plate 101. Then, the polytetrafluoroethylene plate 1 is connected and fixed with the first embedded part 13, the second embedded part 14, and the step 6. During the fixing, the positioning line is laid to make the connecting parts installed straight and without deviation. The allowable deviation must meet the design requirements and construction specifications.
[0056] S5: On the upper part of the seismic isolation trench outside the main building, construct the cover plate body 2. Fix one end of the cover plate body 2 to the square rail 4 and the other end to the polytetrafluoroethylene plate 1. Before attaching the plate, check the dimensions according to the design requirements. When installing, align the plate end with the position line, lower it slowly, and adjust the position of the cover plate body 2 after it is stable. Check that the deviation is within the allowable deviation range before proceeding to the next construction process. Fix the stiffening rib 3 to the upper part of the cover plate body 2. After assembly, it can become a whole. The cover plate body 2 can slide with the displacement of the main building.
[0057] S6: Check whether the gap size at the front and back of the cover plate body 2 meets the design requirements. Clean the gap, apply structural adhesive 5 to the front end, add flexible filler material 9 to the rear end, and conduct a compatibility retest on the adhesive application site. The adhesive should be fine and glossy, free of foreign matter, and free of crusting and peeling.
[0058] S7: Complete the construction of the cover plate body 2 of the entire drainage ditch in sequence. The construction method of the top surface of the cover plate body 2 is completed together with the ground construction of the building.
[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A seismic isolation trench cover device, comprising a seismic isolation trench disposed between the main body of the building and the retaining wall (10) and the steps (6), wherein a drainage ditch board (8) is provided inside the seismic isolation trench, and the upper end of the retaining wall (10) is provided with concrete (11). Its features are, Also includes: Concrete (11), with a stainless steel baffle (7) at its upper end, and the right side of the stainless steel baffle (7) is in contact with the square rail (4). A polytetrafluoroethylene (PTFE) sheet (1) is connected to the step (6) by a first embedded part (13) and a second embedded part (14), and both the first embedded part (13) and the second embedded part (14) are driven into the step (6) with pins. A structural adhesive (5) is provided on the left side of the PTFE sheet (1), and the lower end of the PTFE sheet (1) is in contact with the upper end of the step (6). The cover plate body (2) has an L-shaped end and a rectangular groove at the other end. The inner surface of the cover plate body (2) is in close contact with the polytetrafluoroethylene plate (1). The L-shaped end of the cover plate body (2) is connected to the structural adhesive (5). The groove end of the cover plate body (2) is fastened to the square rail (4). A gap is reserved at the groove end of the cover plate body (2) to place flexible filling material (9). The back of the cover plate body is provided with stiffening ribs (3). The square rail (4) is connected to the floor slab through the third embedded part (15), and the upper part of the square rail (4) is closely attached to the groove opened on the cover plate body (2); The lower end of the floor (12) is in contact with the upper end of the stiffening rib (3); A pull rod (1001) passes through the retaining wall (10), and the pull rod (1001) is in contact with the drainage ditch plate (8) through a groove at the lower end of the drainage ditch plate (8); A pull spring (1002) is installed on the pull rod (1001), and the pull spring (1002) is connected to the retaining wall (10); The second additional baffle (1003) is installed in the groove opened on the retaining wall (10); The polytetrafluoroethylene plate (1) is provided with limiting plates (101) on both the left and right sides at the lower end, and the limiting plates (101) are in close contact with the first additional baffle (601), and the first additional baffle (601) is installed in the groove opened on the step (6); The first added baffle (601) has symmetrically arranged receiving plates (602) on the left and right sides of its inner surface, and a push spring (603) is installed on the inner surface of the first added baffle (601), and the push spring (603) is installed on the locking plate (604), while the locking plate (604) is set as a trapezoidal plate structure.
2. The vibration isolation trench cover device according to claim 1, characterized in that: The surface of the stainless steel baffle (7) is smooth, and a triangular groove is provided in the middle of the stainless steel baffle (7).
3. The vibration isolation trench cover device according to claim 1, characterized in that: The stiffening ribs (3) are welded at a certain distance to the upper end of the cover plate body (2), and the stiffening ribs (3) can increase the adhesion between the step (6) and the concrete (11).
4. The vibration isolation trench cover device according to claim 1, characterized in that: The flexible filling material (9) is made of a mixture of special adhesive and flexible material, and the flexible filling material (9) is disposed between the cover plate body (2) and the concrete (11).
5. The vibration isolation trench cover device according to claim 1, characterized in that: The locking plate (604) is symmetrically provided with limiting sliders (605), and the outer surface of the limiting sliders (605) is made smooth. The limiting sliders (605) are slidably connected to the receiving plate (602) through the groove opened on the receiving plate (602).
6. The vibration isolation trench cover device according to claim 5, characterized in that: The drainage ditch plate (8) is fitted with protective balls (801), and the protective balls (801) are rolled on the movable plate (802). A cleaning brush plate (8021) is installed at the lower end of the movable plate (802), and cleaning bristles (8022) are installed on the cleaning brush plate (8021), and the cleaning bristles (8022) are in contact with the drainage ditch plate (8).
7. The vibration isolation trench cover device according to claim 6, characterized in that: The movable plate (802) is equipped with a plate-shaped structure with an electric motor (803), and a rotating gear (805) is provided on the rotating shaft (804) installed at the output end of the electric motor (803). The rotating gear (805) meshes with the second baffle (1003) through the gear tooth structure provided on the second baffle (1003).
8. The construction method of the seismic isolation trench cover device according to claim 1, the construction process includes: S1: Before construction, remove oil, dirt, and dust from the concrete surface to ensure it is dry and flat to prevent poor adhesion. Use a total station to accurately measure and position the surface, and inspect the cover plate body before installation. S2: Prepare the third embedded part (15) with the opening, check the elevation and axis dimensions, determine the size and position of the embedded part according to the design requirements, the hole diameter and edge distance should meet the quality requirements, use studs to fix the third embedded part (15) on the concrete (11), weld the square rail (4) to the third embedded part (15) and fix it. After the construction is completed, the square rail (4) needs to be protected to avoid bending. S3: Before construction begins, the surveying engineer lays out the prefabricated drainage ditch according to the drawings and checks the overhang length of the retaining wall (10) plate. After everything is completed, the height is controlled and the prefabricated drainage ditch plate (8) is placed. At this time, the lower end of the drainage ditch plate (8) is in contact with the pull rod (1001), so that the drainage ditch plate (8) can be limited in front and back by the pull rod (1001) to avoid the drainage ditch plate (8) from moving back and forth during use. The stainless steel baffle (7) is fixed to the upper part of the drainage ditch. The stainless steel baffle (7) is processed and bent into a "V" shape in the processing yard. After installation, it is necessary to check whether the overlap at the drainage point is secure. When it is necessary to clean the inner surface of the drainage ditch plate (8), the moving plate (802) is placed on the upper end of the drainage ditch plate (8). At this time, the rotating gear (805) will start to move with the drainage ditch plate (8). The gear structure installed on the second baffle (1003) is interconnected, and then the motor (803) starts to work. Since the output end of the motor (803) is connected to the rotating shaft (804), the rotating shaft (804) starts to rotate. Since the rotating shaft (804) is equipped with a rotating gear (805), the rotating gear (805) starts to rotate. As the rotating gear (805) rotates, the moving plate (802) starts to move under the action of the gear structure installed on the second baffle (1003). Since the lower end of the moving plate (802) is equipped with a cleaning brush plate (8021), the cleaning bristles (8022) installed on the cleaning brush plate (8021) start to stick to the inner surface of the drainage ditch plate (8), thereby enabling the inner surface of the drainage ditch plate (8) to be cleaned by brushing. S4: According to the design requirements, use studs to connect the first embedded part (13) and the second embedded part (14) to the concrete of the step (6). The polytetrafluoroethylene plate (1) is transported to the construction site. Cover the easily contaminated parts with adhesive tape or plastic film to protect them from damage. Grind the contact surface between the polytetrafluoroethylene plate (1) and the cover plate body (2) with a grinder to ensure that the surface is flat. Place the polytetrafluoroethylene plate (1) on the step (6) and then press down on the polytetrafluoroethylene plate (1). At this time, the limiting plate (101) installed at the lower end of the polytetrafluoroethylene plate (1) begins to fit with the locking plate (604) and squeezes the locking plate (604). At this time, the locking plate (604) begins to slide under the action of the limiting slider (605), that is, it locks. The push spring (603) installed on the plate (604) begins to be squeezed and deformed. When the inner surface of the lower end of the limiting plate (101) and the first added baffle (601) are in contact with each other, the push spring (603) will start to push the locking plate (604) under the action of restoring the deformation. That is, the locking plate (604) will start to move towards the limiting plate (101). At this time, the locking plate (604) will start to lock and fix the limiting plate (101). Then, the polytetrafluoroethylene plate (1) is connected and fixed with the first embedded part (13), the second embedded part (14), and the step (6). When fixing, the positioning line is laid to make the connecting parts installed straight and without deviation. The allowable deviation must meet the design requirements and construction specifications. S5: On the upper part of the seismic isolation trench outside the main building, the cover plate body is constructed. One end of the cover plate body (2) is fixed to the square rail (4), and the other end is tightly attached to the polytetrafluoroethylene plate (1). Before fastening the plate, check the dimensions according to the design requirements. When installing, align the plate end with the position line, lower it slowly, and adjust the position of the cover plate body after it is stable. Check that the deviation is within the allowable deviation range before proceeding to the next process. The stiffening rib (3) is fixed to the upper part of the cover plate body (2). After assembly, it can become a whole. The cover plate body can slide with the displacement of the main building. S6: Check whether the gap size of the cover plate body (2) meets the design requirements. Clean the gap, apply structural adhesive (5) to the front end, add flexible filling material (9) to the rear end, and conduct compatibility retest on the adhesive application site. The adhesive should be fine and bright, free of foreign matter, and free of crusting. S7: Complete the construction of the entire drainage ditch cover body in sequence. The construction method of the top surface of the cover body is completed together with the ground construction of the building.