High-bearing polyurethane waterproof composite anti-vibration pad for building and construction method thereof

Abstract

According to the high-bearing-capacity polyurethane waterproof composite anti-vibration pad for the building and the construction method of the high-bearing-capacity polyurethane waterproof composite anti-vibration pad for the building and the construction method of the high-bearing-capacity polyurethane waterproof composite anti-vibration pad for the building, an upper waterproof layer, a lower waterproof layer and an elastic layer are matched and bonded into a whole, and all waterproof composite anti-vibration pads are bonded into a whole in a buckling and pressing lap joint mode; according to the utility model, the adverse effects of environmental vibration and underground water on sensitive buildings are eliminated, so that the adverse effects of vibration on normal work and life of people are weakened, the product is simple in structure, reliable in quality and simple in construction through factory-like standard production, traditional three construction procedures are reduced to one procedure, and the production cost is reduced. The method can greatly improve the field construction efficiency and construction quality, is suitable for vibration isolation and water prevention of foundations of all building types, and is convenient to construct and wide in engineering application prospect.

Description

Technical Field

[0001] The invention belongs to the field of building vibration and noise control technology and basement foundation and exterior wall waterproof control building technology, and specifically relates to a high-load-bearing polyurethane waterproof composite vibration-damping pad for construction and a construction method thereof. Background Art

[0002] With the rapid development of urban rail transit, on the one hand, urban rail transit has brought great convenience to people's transportation; on the other hand, with the intensive development of rail transit lines and people's increasing attention to the environment, other environmental vibrations such as transportation facilities have had a great impact on sensitive buildings within a certain range around them. In order to solve the adverse effects of environmental vibration and groundwater on sensitive buildings, vibration needs to be controlled to reduce the adverse effects of vibration on people's normal work and life, so that it is controlled below the limit required by the specification or at a better level.

[0003] The existing building vibration damping pads on the market have limited bearing capacity and cannot withstand large upper loads, and are not suitable for foundation vibration reduction on higher floors. In addition, traditional vibration damping pads do not have complete waterproof capabilities, resulting in the need to set up the waterproof layer and vibration reduction layer of the building foundation and basement exterior wall in layers, requiring the construction site to usually have 2 to 3 construction processes, which greatly increases the construction period and difficulty of the site. In addition, the waterproof layer and vibration reduction layer constructed in layers have many hidden disadvantages. Therefore, it is necessary to make improvements to the above problems. Summary of the invention

[0004] The technical problem solved by the present invention is as follows: a high-load-bearing polyurethane waterproof composite vibration-damping pad for construction and a construction method thereof are provided, wherein the waterproof composite vibration-damping pads, which are adapted and bonded to an upper waterproof layer and a lower waterproof layer and an elastic layer, are bonded together by buckling and overlapping, thereby solving the adverse effects of environmental vibration and groundwater on sensitive buildings, thereby reducing the adverse effects of vibration on people's normal work and life. The product has a simple structure, is produced through factory standards, has reliable quality, and is simple to construct. The traditional three construction processes are reduced to one process, which can greatly improve the on-site construction efficiency and construction quality, and is suitable for foundation vibration reduction and waterproofing of all types of buildings, is convenient to construct, and has broad prospects for engineering applications.

[0005] The technical solution adopted by the present invention is as follows: a high-load-bearing polyurethane waterproof composite vibration-damping pad for construction, comprising an elastic layer, an upper waterproof layer located on the upper end surface of the elastic layer, and a lower waterproof layer located on the lower end surface of the elastic layer, wherein the cross-sectional shapes of the elastic layer, the upper waterproof layer, and the lower waterproof layer are all trapezoidal corrugated plate structures, and the upper waterproof layer and the lower waterproof layer are respectively bonded and fixedly connected to the upper end surface and the lower end surface of the elastic layer to form a waterproof composite vibration-damping pad, and the overlapping end on one side of the upper waterproof layer extends outward to form an upper buckled overlapping waterproof edge band, and the overlapping end on the other side of the upper waterproof layer is formed by The upper surface of the first upwardly protruding trapezoidal boss is lower than the upper surface of the adjacent trapezoidal boss, forming an upper embedded waterproof edge band for adapting and connecting with the upper buckled overlapping waterproof edge band of the adjacent waterproof composite vibration-damping pad. The overlapping end on one side of the lower waterproof layer extends outward to form a lower buckled overlapping waterproof edge band, and the overlapping end on the other side of the lower waterproof layer is provided with a lower embedded waterproof edge band formed by the lower surface of the first downwardly protruding trapezoidal boss being higher than the lower surface of the adjacent trapezoidal boss, for adapting and connecting with the lower buckled overlapping waterproof edge band of the adjacent waterproof composite vibration-damping pad.

[0006] Among them, the side wall of the seam side of the elastic layer is an inclined surface, one overlapping side of the elastic layer and the side wall of the upper embedded waterproof edge band are located on the same inclined surface, and the upper buckled overlapping waterproof edge band extends out of the other overlapping side inclined surface of the elastic layer, and the lower buckled overlapping waterproof edge band extends out of the one overlapping side inclined surface of the elastic layer, and the other overlapping side of the elastic layer and the side wall of the lower embedded waterproof edge band are located on the same inclined surface.

[0007] Furthermore, the side wall of the non-overlapping side of the elastic layer is a vertical surface.

[0008] Furthermore, a split additional waterproof strip having a trapezoidal corrugated plate cross-section that is adapted and fixedly connected to the upper waterproof layer and the lower waterproof layer is provided at the overlapping position of the short sides of two adjacent waterproof composite vibration-damping pads.

[0009] Furthermore, the elastic layer is formed by continuous pouring of polyurethane microporous foam, and the thickness of the elastic layer is in the range of 10 mm to 50 mm.

[0010] Furthermore, the upper waterproof layer and the lower waterproof layer are both formed by continuous pouring of solid polyurethane material, and the thickness of the upper waterproof layer and the lower waterproof layer is 0.5 mm to 4.0 mm.

[0011] Furthermore, the bearing capacity of the composite vibration damping pad ranges from 50 KPa to 1000 KPa.

[0012] The construction method of a high-load-bearing polyurethane waterproof composite vibration-damping pad for construction comprises the following steps:

[0013] 1) Clean the base layer, locate and lay out the grade divisions of the waterproof composite vibration damping pad;

[0014] 2) Layout, layout and cutting of waterproof composite vibration damping pads;

[0015] 3) Lay and stick the split additional waterproof strips that need to be installed on the short side of the waterproof layer under the waterproof composite vibration damping pad and the split additional waterproof strips installed at the positions with positive and negative corners to the base concrete cushion layer;

[0016] 4) buckle and bond the lower buckled overlapping waterproof edge band on the long side of the lower waterproof layer of the waterproof composite vibration damping pad to the lower embedded waterproof edge band on the long side of the lower waterproof layer of the adjacent waterproof composite vibration damping pad;

[0017] 5) Bond the lower buckled overlapped waterproof edge band and the lower embedded waterproof edge band that are buckled and bonded to each other on the short sides of the lower waterproof layer of the waterproof composite vibration damping pad to the split additional waterproof strips at the corresponding positions;

[0018] 6) buckle and bond the upper buckled overlapping waterproof edge band on the long side of the waterproof layer of the waterproof composite vibration damping pad to the embedded waterproof edge band on the long side of the waterproof layer of the adjacent waterproof composite vibration damping pad;

[0019] 7) The upper buckled overlapped waterproof edge band and the upper embedded waterproof edge band that are buckled and bonded to each other on the short sides of the waterproof layer on the waterproof composite vibration damping pad are respectively bonded and connected to the split additional waterproof strips at the corresponding positions;

[0020] 8) Conduct self-inspection, trimming, cleaning and protection of the finished surface of the waterproof composite vibration damping pad.

[0021] The advantages of the present invention compared with the prior art are:

[0022] 1. This technical solution integrates the upper waterproof layer, the lower waterproof layer and the elastic layer into one waterproof composite vibration damping pad by buckling and overlapping, which solves the adverse effects of environmental vibration and groundwater on sensitive buildings, thereby reducing the adverse effects of vibration on people's normal work and life. This product has a simple structure;

[0023] 2. The upper waterproof layer and the lower waterproof layer of this technical solution are continuously cast with solid polyurethane materials, so that the waterproof composite vibration damping pad has high tear resistance, excellent impermeability, root puncture resistance, corrosion resistance, and long durability, and can meet the waterproof requirements of different functional building types, foundation types and different waterproof use environment categories;

[0024] 3. This technical solution improves the connection reliability of the joint position by arranging a split additional waterproof strip at the short side overlap position of two adjacent waterproof composite vibration damping pads, so that the joint position has higher joint peeling strength, excellent lap joint impermeability and other properties, and can meet the waterproof requirements of different foundation types and different waterproof use environment categories;

[0025] 4. This technical solution is produced in a factory-based standard manner, with reliable quality and simple construction. It reduces the traditional three construction processes to one process, which can greatly improve the construction efficiency and quality on site. It is also suitable for foundation vibration reduction and waterproofing of all building types, with convenient construction and broad prospects for engineering application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic cross-sectional view of the waterproof composite vibration damping pad of the present invention;

[0027] Figure 2 It is a cross-sectional schematic diagram of the joint positions of adjacent waterproof composite vibration-damping pads of the present invention;

[0028] Figure 3 It is a plan view of the overlapping position of the long side and the short side of the waterproof composite vibration damping pad of the present invention;

[0029] Figure 4 for Figure 3 Middle AA section view;

[0030] Figure 5 for Figure 3 Middle BB section view. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments of the present invention Figure 1-5 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0034] High load-bearing polyurethane waterproof composite vibration damping pad for construction, such as Figure 1-2 As shown, it includes an elastic layer 1, an upper waterproof layer 2 located on the upper end surface of the elastic layer 1, and a lower waterproof layer 3 located on the lower end surface of the elastic layer 1. The cross-sectional shapes of the elastic layer 1, the upper waterproof layer 2 and the lower waterproof layer 3 are all trapezoidal corrugated plate structures. The upper waterproof layer 2 and the lower waterproof layer 3 are respectively bonded and fixedly connected to the upper end surface and the lower end surface of the elastic layer 1 to form a waterproof composite vibration-damping pad. The overlapping end on one side of the upper waterproof layer 2 extends outward to form an upper buckled overlapping waterproof edge band 2-1, and the overlapping end on the other side of the upper waterproof layer 2 is formed by the upper surface of the first trapezoidal boss protruding upward and lower than the upper surface of the adjacent trapezoidal boss to form an upper embedded waterproof edge band 2-2 for adapting and connecting with the upper buckled overlapping waterproof edge band 2-1 of the adjacent waterproof composite vibration-damping pad. The overlapping end on one side of the lower waterproof layer 3 extends outward to form a lower buckled overlapping waterproof edge band 3-1, and the lower The overlapping end on the other side of the waterproof layer 3 is provided with a lower embedded waterproof edge band 3-2 formed by the lower surface of the first downwardly protruding trapezoidal boss being higher than the lower surface of the adjacent trapezoidal boss, which is used to adapt and connect with the lower buckled overlapping waterproof edge band 3-1 of the adjacent waterproof composite vibration-damping pad; the waterproof composite vibration-damping pad of the above structure is used for the foundation floor slab and basement exterior wall of the building, and has high bearing capacity and excellent waterproof performance. This product has a simple structure. The high-bearing waterproof composite vibration-damping pad formed by compounding the upper waterproof layer 2 and the lower waterproof layer 3 with the elastic layer 1 is produced through factory-based standard production, with reliable quality and simple construction. The traditional three construction processes are reduced to one process, which can greatly improve the on-site construction efficiency and construction quality, and is suitable for foundation vibration reduction and waterproofing of all building types. It is convenient to construct and has broad prospects for engineering application.

[0035] Among them, the side wall of the seam side of the elastic layer 1 is an inclined surface, the overlapping side of the elastic layer 1 and the side wall of the upper embedded waterproof edge band 2-2 are located on the same inclined surface, and the upper buckled overlapping waterproof edge band 2-1 extends out of the other overlapping side inclined surface of the elastic layer 1, and the lower buckled overlapping waterproof edge band 3-1 extends out of the overlapping side inclined surface of the elastic layer 1, and the other overlapping side of the elastic layer 1 and the side wall of the lower embedded waterproof edge band 3-2 are located on the same inclined surface; specifically, the side wall of the non-overlapping side of the elastic layer 1 is a vertical surface.

[0036] like Figure 3-5As shown, in order to make the joint position have higher joint peel strength, excellent lap joint impermeability and other properties, and to meet the waterproof requirements under different foundation types and different waterproof use environment categories, a split additional waterproof strip 4 with a trapezoidal corrugated plate cross-section shape that is adapted and fixedly connected to the upper waterproof layer 2 and the lower waterproof layer 3 is provided at the overlapping position of the short sides of two adjacent waterproof composite vibration damping pads to improve the reliability of the connection at the joint position.

[0037] The elastic layer 1 is formed by continuous pouring of polyurethane microporous foam, and the thickness of the elastic layer 1 ranges from 10 mm to 50 mm; specifically, the upper waterproof layer 2 and the lower waterproof layer 3 are both formed by continuous pouring of solid polyurethane material, and the thickness of the upper waterproof layer 2 and the lower waterproof layer 3 ranges from 0.5 mm to 4.0 mm.

[0038] The upper waterproof layer 2 and the lower waterproof layer 3 can be adjusted through the production process to only set the upper or lower surface waterproof layer, or to set both the upper and lower surfaces. The upper waterproof layer 2 and the lower waterproof layer 3 formed by continuous casting of solid polyurethane material have high tear resistance, excellent impermeability, root penetration resistance, corrosion resistance, and a durable life of 50 years or more, and can meet the waterproofing requirements of building types with different functions, foundation types and different waterproof use environment categories.

[0039] Among them, the bearing capacity range of the composite vibration damping pad is 50KPa~1000KPa; the standard thickness of the composite vibration damping pad is 10mm~60mm, and it has stable elasticity, low dynamic and static stiffness, low natural frequency, low deformation, excellent vibration reduction and isolation function under a load of 50KPa~1000KPa, and a durable life of 50 years or more. It can meet the bearing capacity, deformation and other requirements of building types with different functions, foundation types and different building heights, and is suitable for vibration control of various loads, various frequencies and various buildings under various types of waterproof grade requirements.

[0040] The construction method of a high-load-bearing polyurethane waterproof composite vibration-damping pad for construction comprises the following steps:

[0041] 1) Clean the base layer, locate and lay out the grade divisions of the waterproof composite vibration damping pad;

[0042] 2) Layout, layout and cutting of waterproof composite vibration damping pads;

[0043] 3) Lay and stick the split additional waterproof strips 4 that need to be arranged on the short side of the waterproof layer 3 under the waterproof composite vibration damping pad and the split additional waterproof strips 4 arranged at the positions with the positive and negative corners to the base concrete cushion layer;

[0044] 4) buckling and bonding the lower buckled overlapping waterproof edge band 3-1 on the long side of the lower waterproof layer 3 of the waterproof composite vibration damping pad to the lower embedded waterproof edge band 3-2 on the long side of the lower waterproof layer 3 of the adjacent waterproof composite vibration damping pad;

[0045] 5) The lower buckled overlapping waterproof edge band 3-1 and the lower embedded waterproof edge band 3-2, which are buckled and bonded to each other on the short sides of the lower waterproof layer 3 of the waterproof composite vibration damping pad, are bonded and connected to the split additional waterproof strip 4 at the corresponding position;

[0046] 6) buckling and bonding the upper buckled overlapping waterproof edge band 2-1 on the long side of the waterproof layer 2 on the waterproof composite vibration damping pad and the embedded waterproof edge band 2-2 on the long side of the waterproof layer 2 on the adjacent waterproof composite vibration damping pad;

[0047] 7) The upper buckled overlapping waterproof edge band 2-1 and the upper embedded waterproof edge band 2-2, which are buckled and bonded to each other on the short sides of the waterproof layer 2 on the waterproof composite vibration damping pad, are respectively bonded and connected to the split additional waterproof strips 4 at the corresponding positions;

[0048] 8) Conduct self-inspection, trimming, cleaning and protection of the finished surface of the waterproof composite vibration damping pad.

[0049] This technical solution integrates the waterproof composite vibration-damping pads that are adaptively bonded to the upper waterproof layer 2 and the lower waterproof layer 3 and the elastic layer 1 by buckling and overlapping them, thereby solving the adverse effects of environmental vibration and groundwater on sensitive buildings, thereby reducing the adverse effects of vibration on people's normal work and life. This product has a simple structure and is produced through factory standards. It has reliable quality and simple construction. It reduces the traditional three construction processes to one process, which can greatly improve the on-site construction efficiency and construction quality. It is suitable for foundation vibration reduction and waterproofing of all building types, is easy to construct, and has broad prospects for engineering application.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. High-load-bearing polyurethane waterproof composite vibration damping pad for construction, characterized by: The invention comprises an elastic layer (1), an upper waterproof layer (2) located on the upper end surface of the elastic layer (1), and a lower waterproof layer (3) located on the lower end surface of the elastic layer (1); the cross-sectional shapes of the elastic layer (1), the upper waterproof layer (2), and the lower waterproof layer (3) are all trapezoidal corrugated plate structures; the upper waterproof layer (2) and the lower waterproof layer (3) are respectively bonded and fixedly connected to the upper end surface and the lower end surface of the elastic layer (1) to form a waterproof composite vibration damping pad; the thickness of the elastic layer (1) is greater than the thickness of the upper waterproof layer (2) and the lower waterproof layer (3); the overlapping end on one side of the upper waterproof layer (2) extends outward to form an upper buckled overlapping waterproof edge band (2-1); and the overlapping end on the other side of the upper waterproof layer (2) is formed by a first upwardly protruding The upper surface of the trapezoidal boss is lower than the upper surface of the adjacent trapezoidal boss to form an upper embedded waterproof edge band (2-2) for adaptive connection with the upper buckled overlap waterproof edge band (2-1) of the adjacent waterproof composite vibration damping pad; the overlapping end on one side of the lower waterproof layer (3) extends outward to form a lower buckled overlap waterproof edge band (3-1); and the overlapping end on the other side of the lower waterproof layer (3) is provided with a lower embedded waterproof edge band (3-2) formed by the lower surface of the first downwardly protruding trapezoidal boss being higher than the lower surface of the adjacent trapezoidal boss to adaptive connection with the lower buckled overlap waterproof edge band (3-1) of the adjacent waterproof composite vibration damping pad; after the two adjacent waterproof composite vibration damping pads are overlapped, the groove and the boss of the trapezoidal corrugated plate are located on the same plane.

2. The high-load-bearing polyurethane waterproof composite vibration-damping pad for construction according to claim 1, characterized in that: The side wall of the joint side of the elastic layer (1) is in the form of an inclined surface, one overlapping side of the elastic layer (1) and the side wall of the upper embedded waterproof edge band (2-2) are located on the same inclined surface, and the upper buckled overlapping waterproof edge band (2-1) extends out of the other overlapping side inclined surface of the elastic layer (1), and the lower buckled overlapping waterproof edge band (3-1) extends out of the one overlapping side inclined surface of the elastic layer (1), and the other overlapping side of the elastic layer (1) and the side wall of the lower embedded waterproof edge band (3-2) are located on the same inclined surface.

3. The high-load-bearing polyurethane waterproof composite vibration-damping pad for construction according to claim 1, characterized in that: The side wall of the non-overlapping side of the elastic layer (1) is a vertical surface.

4. The high-load-bearing polyurethane waterproof composite vibration-damping pad for construction according to claim 1, characterized in that: A split additional waterproof strip (4) having a trapezoidal corrugated plate cross-section and adapted to be fixedly connected to the upper waterproof layer (2) and the lower waterproof layer (3) is provided at the overlapping position of the short sides of two adjacent waterproof composite vibration-damping pads.

5. The high-load-bearing polyurethane waterproof composite vibration-damping pad for construction according to claim 1, characterized in that: The elastic layer (1) is formed by continuous pouring of polyurethane microporous foam, and the thickness of the elastic layer (1) is in the range of 10 mm to 50 mm.

6. The high-load-bearing polyurethane waterproof composite vibration-damping pad for construction according to claim 1, characterized in that: The upper waterproof layer (2) and the lower waterproof layer (3) are both formed by continuous pouring of solid polyurethane material, and the thickness of the upper waterproof layer (2) and the lower waterproof layer (3) is 0.5 mm to 4.0 mm.

7. The high-load-bearing polyurethane waterproof composite vibration-damping pad for construction according to any one of claims 1 to 6, characterized in that: The bearing capacity range of the composite vibration damping pad is 50KPa to 1000KPa.

8. A construction method for a high-load-bearing polyurethane waterproof composite vibration damping pad for construction, characterized in that The following steps are involved: 1) Clean the base layer, locate and lay out the grade divisions of the waterproof composite vibration damping pad; 2) Layout, layout and cutting of waterproof composite vibration damping pads; 3) Lay and stick the split additional waterproof strips (4) that need to be arranged on the short side of the waterproof layer (3) under the waterproof composite vibration damping pad and the split additional waterproof strips (4) arranged at the positions with the positive and negative corners to the base concrete cushion layer; 4) buckling and bonding the lower buckled overlapping waterproof edge band (3-1) on the long side of the lower waterproof layer (3) of the waterproof composite vibration damping pad to the lower embedded waterproof edge band (3-2) on the long side of the lower waterproof layer (3) of the adjacent waterproof composite vibration damping pad; 5) bonding the lower buckled overlapped waterproof edge band (3-1) and the lower embedded waterproof edge band (3-2) which are buckled and bonded to each other on the short sides of the lower waterproof layer (3) of the waterproof composite vibration damping pad to the split additional waterproof strip (4) at the corresponding position; 6) buckling and bonding the upper buckled overlapping waterproof edge band (2-1) on the long side of the waterproof layer (2) on the waterproof composite vibration damping pad and the embedded waterproof edge band (2-2) on the long side of the adjacent waterproof composite vibration damping pad; 7) The upper buckled overlapped waterproof edge band (2-1) and the upper embedded waterproof edge band (2-2) which are buckled and bonded to each other on the short sides of the waterproof layer (2) on the waterproof composite vibration damping pad are respectively bonded and connected to the split additional waterproof strips (4) at corresponding positions; 8) Conduct self-inspection, trimming, cleaning and protection of the finished surface of the waterproof composite vibration damping pad.

Images