Vibration double-control support and construction and installation method thereof

Abstract

The vibration and vibration double-control support comprises a main body part, a lower embedded plate, at least one set of U-shaped supporting tools and a plurality of connecting ribs, and the lower embedded plate is used for connecting the main body part of the vibration and vibration double-control support and the bottom sections of the U-shaped supporting tools, so that the main body part of the vibration and vibration double-control support and the U-shaped supporting tools are pre-assembled; the top section of the U-shaped supporting tool is detachably connected and fixed with the concrete upper buttress, so that the main body part of the vibration and vibration double-control support can be fixedly arranged below the concrete upper buttress. According to the vibration and vibration double-control support, through the arrangement of the U-shaped supporting tool and the connecting piece of the U-shaped supporting tool, the vibration and vibration double-control support can be constructed and installed from top to bottom, and therefore the vibration and vibration double-control support is conveniently suitable for the project that an upper buttress of a building is constructed but a lower buttress is not constructed; and the problem that in the process of pouring the lower buttress structure firstly, horizontal or vertical displacement of the reinforcing steel bars causes deviation of the pre-embedded plate, and then installation of the support is affected can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and in particular to a vibration-vibration dual-control bearing and a construction and installation method thereof. Background Art

[0002] In order to improve the comprehensive utilization efficiency of urban land, property development in the upper space of subway stations and along the line is the most direct and effective method, which can also promote the development of commerce and transportation. However, since the upper cover building is close to the vibration source, the vibration and noise caused by underground transportation cannot be ignored on people's living environment and the operation of precision equipment. In order to reduce the vibration and secondary structural noise problems induced by urban rail transit in the upper building structure, a vibration isolation support can be set between the building and the foundation. The spring-damping system of the vibration isolation support absorbs and consumes the low-frequency vibration caused by the subway, thereby preventing the vibration energy from continuing to be transmitted to the upper part. In addition, under the existing technology, there are also some vibration isolation supports that can combine shock absorption and vibration isolation functions to improve the vibration isolation and shock absorption protection between the building and the foundation. However, the installation of the new vibration isolation support also puts forward higher requirements on the accurate positioning and construction quality of the embedded plate of the building structure.

[0003] The existing building vibration isolation bearings are generally set between the top of the lower pier and the bottom of the upper pier, and the vibration isolation bearing embedded plate is connected and fixed to the lower pier by a bottom-up construction method. The accurate positioning and construction quality of the lower embedded plate determine the installation quality and vibration isolation effect of the vibration isolation bearing. However, during the construction process, the embedded plate is prone to displacement due to horizontal or vertical displacement of the steel bars during the casting of the lower pier structure, which affects the installation of the vibration isolation bearing. In addition, the existing construction method is not suitable for projects where the upper pier of the building has been completed but the lower pier has not yet been constructed, or other building vibration reduction and isolation renovation projects. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The present invention provides a vibration dual-control bearing and a construction and installation method thereof, which solves the problem that the existing building vibration isolation bearings are mostly constructed from bottom to top, are not suitable for projects where the upper pier of the building has been completed but the lower pier has not yet been constructed, and that horizontal or vertical displacement of the steel bars during the casting of the lower pier structure can easily cause the embedded plate to shift, thereby affecting the installation of the vibration isolation bearing.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A vibration-vibration dual-control bearing comprises a main body, a lower embedded plate, and at least two groups of U-shaped supporting fixtures, wherein the lower embedded plate is used to connect the main body of the vibration-vibration dual-control bearing and the bottom section of the U-shaped supporting fixture, so that the main body of the vibration-vibration dual-control bearing and the U-shaped supporting fixture are pre-assembled; the top section of the U-shaped supporting fixture is detachably connected and fixed to the upper concrete pier, so that the main body of the vibration-vibration dual-control bearing can be fixedly arranged below the upper concrete pier; a plurality of connecting ribs are formed below the lower embedded plate, and the connecting ribs are used to cooperate with the positioning and forming of the lower concrete pier; after the top section of the U-shaped supporting fixture is removed, the main body of the vibration-vibration dual-control bearing can be used for vertical vibration isolation and horizontal shock absorption, and the vibration-vibration dual-control bearing can be installed from top to bottom between the upper concrete pier and the lower concrete pier.

[0009] Preferably, the U-shaped supporting tooling comprises two round steels and one grooved square steel, and the bottom ends of the two round steels are respectively fixed to the two ends of the grooved square steel by means of threads, so that the two round steels form a detachable top section in the U-shaped supporting tooling, and the grooved square steel forms a bottom section in the U-shaped supporting tooling that is connected and fixed to the lower embedded plate.

[0010] In a further embodiment, a steel sheet is fixedly connected to the top of the round steel, a connecting hole is opened on the steel sheet, an upper embedded plate is arranged under the concrete upper pier, a plurality of expansion tubes are inserted in the upper embedded plate, and bolts are passed through the connecting holes of the steel sheet for cooperating with the expansion tubes to fix the U-shaped support tooling under the concrete upper pier.

[0011] In a further preferred embodiment, at least one gasket is provided between the upper embedded plate and the steel sheet, and the bolt passes through the gasket between the upper embedded plate and the steel sheet.

[0012] In a further preferred embodiment, the main body of the vibration dual-control support includes multiple steel springs and dampers, an upper support, a lower support, an elastic slide plate, an upper transition plate, multiple spring retaining rings, a lower transition plate, and several groups of stud nut assemblies, the upper and lower supports are formed with multiple aligned spring retaining rings on the facing sides, and a steel spring is arranged on the outside of each two coaxially aligned spring retaining rings, the two ends of the multiple steel springs and dampers are respectively connected to the upper support and the lower support, the studs in each group of the stud nut assemblies are respectively arranged on the inner side of a steel spring, and the two ends of the studs pass through the upper support and the lower support respectively, and each group of the stud nut assemblies is provided with two nuts threadedly connected to the two ends of the studs respectively, the elastic slide plate is slidably arranged between the upper support and the upper transition plate, and the upper transition plate is connected and fixed to the upper embedded plate, and the lower transition plate is arranged between the lower support and the lower embedded plate and is respectively connected and fixed to the lower support and the lower embedded plate.

[0013] In a further preferred embodiment, a plurality of connecting bars at the bottom of the lower embedded plate are welded and fixed to a steel cage in the concrete lower pier, and the concrete lower pier is formed by pouring concrete at the steel cage.

[0014] A construction and installation method of a vibration dual-control bearing comprises the following steps:

[0015] Step 1: Perform the following preparation procedures on the upper embedded plate working surface of the completed concrete upper pier: cleaning, re-measurement and leveling;

[0016] Step 2: Divide the main body of the vibration dual-control support into three parts, and pre-assemble the lower part with the lower embedded plate;

[0017] Step 3, pre-assemble the U-shaped support fixture and the lower embedded plate with connecting ribs at the bottom, and make the U-shaped support fixture staggered with the connecting ribs;

[0018] Step 4: Use the connection between the U-shaped support fixture and the upper embedded plate to pre-install the main part of the vibration dual-control support in a fixed form under the concrete upper pier;

[0019] Step 5: Position and assemble the upper part of the main body of the vibration dual-control support and the upper embedded plate;

[0020] Step 6: Tie and install the lower pier reinforcement cage at the connecting reinforcement;

[0021] Step 7, pouring and curing concrete at the steel cage of the lower pier to form a concrete lower pier;

[0022] Step 8: Remove the top section of the U-shaped support fixture and release the preloaded parts in the main body of the vibration-vibration dual-control support, so that the main body of the vibration-vibration dual-control support is in a working state capable of vertical vibration isolation and horizontal shock absorption.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention provides a vibration dual-control bearing and a construction and installation method thereof, which has the following beneficial effects:

[0025] 1. In the present invention, by setting up the U-shaped support tooling and its connecting parts, the vibration dual-control bearing can be constructed and installed from top to bottom, so it is convenient for use in projects where the upper pier of the building has been completed but the lower pier has not yet been constructed, and it can also avoid the horizontal or vertical displacement of the steel bars during the casting of the lower pier structure, causing the embedded plate to shift, thereby affecting the installation of the bearing.

[0026] 2. In the present invention, the U-shaped support tooling can provide sufficient support force for the upper structure during the construction of the lower pier of the building, and some components of the U-shaped support tooling can be recycled after the construction is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the connection between the vibration dual-control bearing and the concrete upper pier according to the implementation scheme;

[0028] Figure 2 It is a structural schematic diagram of the main part of the vibration dual-control support according to the implementation scheme;

[0029] Figure 3 It is an elevation view of the main part of the vibration dual-control support and the U-shaped support tooling according to the implementation scheme;

[0030] Figure 4 for Figure 3 Plan view of the main part of the medium vibration dual control support and the U-shaped support tooling;

[0031] Figure 5 It is a flow chart of the construction and installation method of the vibration dual-control bearing according to the implementation plan.

[0032] In the figure: 1. steel spring; 2. elastic slide plate; 3. upper transition plate; 4. spring retaining ring; 5. lower transition plate; 6. lower embedded plate; 7. connecting ribs; 8. round steel; 9. square steel with grooves; 10. damper; 11. gasket; 12. expansion bolt; 13. upper concrete pier; 14. upper embedded plate; 15. upper support; 16. lower support. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 4, a vibration-vibration dual-control bearing, comprising a main body, a lower embedded plate 6, and at least two groups of U-shaped support fixtures (two groups in the figure). The lower embedded plate 6 can be used to connect the main body of the vibration-vibration dual-control bearing and the bottom section of the U-shaped support fixture by welding, so that the main body of the vibration-vibration dual-control bearing and the U-shaped support fixture can be pre-assembled. The top section of the U-shaped support fixture is detachably connected and fixed to the concrete upper pier 13, so that the main body of the vibration-vibration dual-control bearing can be pre-installed in a fixed form below the concrete upper pier 13. A plurality of connecting ribs 7 are formed at the bottom of the lower embedded plate 6, and the connecting ribs 7 can be used to cooperate with the concrete lower pier for molding construction. After the construction of the concrete lower pier is completed, the removal of the top section of the U-shaped support fixture can make the main body of the vibration-vibration dual-control bearing available for vertical vibration isolation and horizontal shock absorption, and the above process can make the vibration-vibration dual-control bearing installed from top to bottom between the concrete upper pier 13 and the concrete lower pier.

[0035] See also Figure 2 The main part of the vibration-vibration dual-control support may include multiple steel springs 1 and dampers 10, an upper support 15, a lower support 16, an elastic slide plate 2, an upper transition plate 3, multiple spring retaining rings 4, a lower transition plate 5, and several groups of stud nut assemblies. The upper support 15 and the lower support 16 are formed with multiple aligned spring retaining rings 4 on the opposite sides, and a steel spring 1 is arranged on the outside of each two coaxially aligned spring retaining rings 4. The two ends of the multiple steel springs 1 and the damper 10 are respectively connected to the upper support 15 and the lower support 16. When the main part of the vibration-vibration dual-control support is in the working state, the steel spring 1 and the damper 10 can be used for vertical vibration isolation. The upper transition plate 3 is connected and fixed to the upper embedded plate 14, and the elastic slide plate 2 is slidably arranged between the upper support 15 and the upper transition plate 3. When the main part of the vibration-vibration dual-control support is in the working state, the elastic slide plate 2 has a certain activity space on the horizontal plane, so that the vibration-vibration dual-control support can be horizontally damped. The studs in each set of stud nut assemblies are arranged on the inner side of a steel spring 1, and the two ends of the studs pass through the upper support 15 and the lower support 16 respectively. Each set of stud nut assemblies is provided with two nuts threadedly connected to the two ends of the studs. After tightening the two nuts in the stud nut assembly, the relative positions of the upper support 15 and the lower support 16 can be limited, so that the main part of the vibration dual-control support is prevented from moving during transportation and installation; in addition, when the main part of the vibration dual-control support is adjusted to a working state, the nuts in the stud nut assembly need to be screwed outward a certain distance in advance. The lower transition plate 5 in the main part of the vibration dual-control support is arranged between the lower support 16 and the lower embedded plate 6 and is welded and fixed to the lower support 16 and the lower embedded plate 6 respectively.

[0036] In this embodiment, the main part of the vibration dual control support can be divided into three parts, the upper part of which includes an upper transition plate 3, the middle part includes an elastic slide plate 2, and the lower part includes a steel spring 1, a spring retaining ring 4, a lower transition plate 5, an upper support 15 and a lower support 16. The upper and lower parts of the main part of the vibration dual control support can be connected and fixed to the upper embedded plate 14 and the lower embedded plate 6 respectively. In the specific construction process, the upper, middle and lower parts of the main part of the vibration dual control support are first assembled under the concrete upper pier 13 with the lower embedded plate 6 and the U-shaped support tooling. After the expansion tube is tightened with the bolts to reach the working strength, the upper transition plate 3 can be made close to the upper embedded plate 14, and the upper transition plate 3 and the upper embedded plate 14 can be welded at this time.

[0037] See also Figure 3 and Figure 4 The U-shaped support tooling includes two round steels 8 and a grooved square steel 9. External threads can be pre-processed at the bottom of the round steel 8, and threaded holes can be processed at both ends of the grooved square steel 9, so that the bottom ends of the two round steels 8 can be respectively connected and fixed with the two ends of the grooved square steel 9 by threads. The two round steels 8 can constitute the detachable top section of the U-shaped support tooling, and the grooved square steel 9 can constitute the bottom section of the U-shaped support tooling for connecting and fixing with the lower embedded plate 6. In addition, a steel sheet is pre-welded and fixed at the top of the round steel 8, and a connecting hole is opened on the steel sheet. An upper embedded plate 14 is arranged below the upper concrete pier 13. During installation, a number of expansion tubes are inserted into the upper embedded plate 14. Bolts that match the expansion tubes are inserted into the connecting holes of the steel sheet and then tightened. The U-shaped support tooling can be fixed below the upper concrete pier 13, and the main part of the vibration dual-control support is fixed as a whole by using the U-shaped support tooling.

[0038] In this embodiment, at least one gasket 11 may be provided between the upper embedded plate 14 and the steel sheet. When the bolts matched with the expansion tube are tightened, the bolts may pass through the gasket 11 between the upper embedded plate 14 and the steel sheet. The gasket 11 is used to prevent loosening and fix the U-shaped support tooling during installation; and after removing the gasket 11, the round steel 8 may have space to be screwed out upward, thereby facilitating the subsequent removal of the round steel 8.

[0039] In this embodiment, during the construction of the concrete lower pier, the multiple connecting bars 7 at the bottom of the lower embedded plate 6 can be extended into the steel cage (not shown in the figure) in the concrete lower pier and fixed with it by spot welding. After the support of the steel cage of the concrete lower pier is completed, the template is laid and the column pier concrete is poured. The pouring sequence should be poured one by one according to the installation sequence of the support embedded plate, that is, after pouring one column pier, the next column pier is poured. If it is difficult to meet the construction accuracy by pouring once, the lower pier concrete can be poured twice or grouting twice.

[0040] In this embodiment, when the upper structure of the vibration isolator reaches the final state and the vibration isolator release condition is met, the round steel 8 in the U-shaped support fixture can be removed and the pre-tightening member (stud nut assembly) in the main part of the vibration dual-control support can be loosened. In this process, first pull out the bolts used to fix the U-shaped support, then take out the gasket 11, then loosen the round steel 8 and remove it from the grooved square steel 9, and finally loosen the support pre-tightening nut so that the released gap between the nut and the upper support 15 or the lower support 16 is not less than 5mm.

[0041] See also Figure 5 The construction and installation method of the vibration double-control bearing includes the following steps:

[0042] Step 1: Perform the following preparation procedures on the working surface of the upper embedded plate 14 on the completed concrete upper pier 13: cleaning, re-measurement and leveling;

[0043] Step 2, divide the main part of the vibration dual-control support into three parts, and pre-assemble the lower part with the lower embedded plate 6;

[0044] Step 3, pre-assemble the U-shaped support fixture and the lower embedded plate 6 with connecting ribs 7 at the bottom, and make the U-shaped support fixture staggered from the connecting ribs 7;

[0045] Step 4: Use the connection between the U-shaped support fixture and the upper embedded plate 14 to pre-install the main part of the vibration dual-control support in a fixed form under the concrete upper pier 13;

[0046] Step 5: Position and assemble the upper part of the main body of the vibration dual-control support and the upper embedded plate 14;

[0047] Step 6: Tie and install the lower pier reinforcement cage at the connecting reinforcement 7;

[0048] Step 7, pouring and curing concrete at the steel cage of the lower pier to form a concrete lower pier;

[0049] Step 8: Remove the top section of the U-shaped support fixture and release the preloaded parts in the main body of the vibration-vibration dual-control support, so that the main body of the vibration-vibration dual-control support is in a working state capable of vertical vibration isolation and horizontal shock absorption.

[0050] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vibration dual-control support, comprising a main body, characterized in that: It also includes a lower embedded plate (6) and at least two sets of U-shaped supporting fixtures. The lower embedded plate (6) is used to connect the main part of the vibration dual-control support and the bottom section of the U-shaped support fixture, so that the main part of the vibration dual-control support and the U-shaped support fixture are pre-assembled; The top section of the U-shaped support tooling is detachably connected and fixed to the concrete upper pier (13), so that the main part of the vibration dual-control support can be fixedly arranged below the concrete upper pier (13); A plurality of connecting ribs (7) are formed at the bottom of the lower embedded plate (6), and the connecting ribs (7) are used to coordinate with the positioning and forming of the lower concrete pier; After the top section of the U-shaped support fixture is removed, the main part of the vibration-vibration dual-control support can be used for vertical vibration isolation and horizontal shock absorption, and the vibration-vibration dual-control support can be installed from top to bottom between the concrete upper pier (13) and the concrete lower pier.

2. The vibration dual-control support according to claim 1, characterized in that: The U-shaped support fixture comprises two round steels (8) and a grooved square steel (9), the bottom ends of the two round steels (8) are respectively connected and fixed to the two ends of the grooved square steel (9) by means of threads, so that the two round steels (8) form a detachable top section of the U-shaped support fixture, and the grooved square steel (9) forms a bottom section of the U-shaped support fixture that is connected and fixed to the lower embedded plate (6).

3. The vibration dual-control support according to claim 2, characterized in that: The top end of the round steel (8) is fixedly connected to a steel sheet, and a connecting hole is provided on the steel sheet.

4. The vibration dual-control support according to claim 3, characterized in that: An upper embedded plate (14) is arranged below the concrete upper pier (13), a plurality of expansion tubes are inserted into the upper embedded plate (14), and bolts are passed through the connection holes of the steel sheet to cooperate with the expansion tubes to fix the U-shaped support tooling below the concrete upper pier (13).

5. The vibration dual-control support according to claim 4, characterized in that: At least one gasket (11) is also provided between the upper embedded plate (14) and the steel sheet, and the bolt passes through the gasket (11) between the upper embedded plate (14) and the steel sheet.

6. A vibration dual-control support according to any one of claims 1 to 5, characterized in that: The main body of the vibration dual-control support comprises a plurality of steel springs (1) and a damper (10), an upper support (15), a lower support (16), an elastic slide plate (2), an upper transition plate (3), a plurality of spring retaining rings (4), and a lower transition plate (5). The upper support (15) and the lower support (16) are formed with a plurality of aligned spring retaining rings (4) on the opposite sides thereof, and a steel spring (1) is arranged on the outer side of each two coaxially aligned spring retaining rings (4). The two ends of the plurality of steel springs (1) and the damper (10) are respectively connected to an upper support (15) and a lower support (16); the elastic slide plate (2) is slidably arranged between the upper support (15) and the upper transition plate (3); the upper transition plate (3) is connected and fixed to the upper embedded plate (14); the lower transition plate (5) is arranged between the lower support (16) and the lower embedded plate (6) and is respectively connected and fixed to the lower support (16) and the lower embedded plate (6).

7. The vibration dual-control support according to claim 6, characterized in that: The main body of the vibration dual-control support also includes a plurality of groups of stud nut assemblies, wherein the studs in each group of the stud nut assemblies are arranged on the inner side of a steel spring (1), and the two ends of the studs pass through the upper support (15) and the lower support (16) respectively, and each group of the stud nut assemblies is provided with two nuts respectively threadedly connected to the two ends of the studs.

8. A vibration dual-control support according to any one of claims 1 to 5, characterized in that: The plurality of connecting bars (7) at the bottom of the lower embedded plate (6) are welded and fixed to the steel cage in the concrete lower pier, and the concrete lower pier is formed by pouring concrete at the steel cage.

9. The construction and installation method of the vibration dual-control bearing according to any one of claims 1 to 8 is characterized in that: The following steps are involved: Step 1: Perform the following preparation steps on the working surface of the upper embedded plate (14) on the completed concrete upper pier (13): cleaning, re-measurement and leveling; Step 2, dividing the main part of the vibration dual-control support into three parts, and pre-assembling the lower part with the lower embedded plate (6); Step 3, pre-assemble the U-shaped support fixture and the lower embedded plate (6) with a connecting rib (7) formed at the bottom, and make the U-shaped support fixture staggered with the connecting rib (7); Step 4: Using the connection between the U-shaped support fixture and the upper embedded plate (14), the main body of the vibration dual-control support is pre-installed in a fixed form below the concrete upper pier (13); Step 5, positioning and assembling the upper part of the main body of the vibration dual-control support and the upper embedded plate (14); Step 6: Tie and install the lower pier reinforcement cage at the connecting reinforcement (7); Step 7, pouring and curing concrete at the steel cage of the lower pier to form a concrete lower pier; Step 8: Remove the top section of the U-shaped support fixture and release the preloaded parts in the main body of the vibration-vibration dual-control support, so that the main body of the vibration-vibration dual-control support is in a working state capable of vertical vibration isolation and horizontal shock absorption.

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