CN111395412A - Separated vibration isolation device applied to subway upper cover and construction method - Google Patents

Separated vibration isolation device applied to subway upper cover and construction method Download PDF

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Publication number
CN111395412A
CN111395412A CN202010344585.4A CN202010344585A CN111395412A CN 111395412 A CN111395412 A CN 111395412A CN 202010344585 A CN202010344585 A CN 202010344585A CN 111395412 A CN111395412 A CN 111395412A
Authority
CN
China
Prior art keywords
vibration
vibration isolator
box
pier
vibration isolation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010344585.4A
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Chinese (zh)
Inventor
周豪
史纯松
王勇
郑海涛
贾海云
刘洋
杨培锐
徐志和
戚慧敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Metro Group Co ltd
China Construction First Group Corp Ltd
Original Assignee
Shenzhen Metro Group Co ltd
China Construction First Group Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Metro Group Co ltd, China Construction First Group Corp Ltd filed Critical Shenzhen Metro Group Co ltd
Priority to CN202010344585.4A priority Critical patent/CN111395412A/en
Publication of CN111395412A publication Critical patent/CN111395412A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/08Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

The invention discloses a separated vibration isolation device applied to an upper cover of a subway and a construction method, wherein the vibration isolation device is arranged in a vibration isolation space between an upper column pier and a lower column pier and comprises a vibration isolator, a leveling plate and a limiting table, the leveling plate is embedded on the bottom surface of the upper column pier, the vibration isolator and the limiting table are arranged between the leveling plate and the lower column pier, the limiting table is arranged on one side of the vibration isolation space, and the vibration isolator is arranged on the other side of the vibration isolation space at intervals from left to right; the upper end surface and the lower end surface of the vibration isolator are in contact with the leveling plate and the lower column pier; the limiting table is arranged on the lower column pier. The invention combines the buffer spring and the fixed rod into a cushioning structure, then moves in an environment wrapped by damping fluid to form the vibration isolator, is applied between the column piers of a building structure, effectively separates the structure from a seismic source, and utilizes the spring to absorb vibration energy, thereby achieving the effect of reducing vibration.

Description

Separated vibration isolation device applied to subway upper cover and construction method
Technical Field
The invention relates to the technical field of building construction, in particular to a separated vibration isolation device applied to an upper cover of a subway and a construction method.
Background
Subways are life lines penetrating through cities, and in civil engineering, traffic convenience close to subways is also a rigid requirement in life, so that buildings in cities are more and more constructed on subway station lines. In the process of building a new building on a subway station line and using the building, subway vibration inevitably affects the use comfort and the structure safety of the building. The existing damping method basically adopts flexible material layers such as rubber and the like, can reduce vibration to a certain extent, but has poor vibration isolation effect and poor building use comfort. The invention provides a separated vibration isolation device applied to an upper cover of a subway and a construction method, which overcome the defects.
Disclosure of Invention
The invention provides a separated vibration isolation device applied to an upper cover of a subway and a construction method, wherein a newly-built building is effectively separated from a seismic source by utilizing a steel spring vibration isolation system, the effect of energy dissipation and shock absorption is achieved, the use comfort is improved, and the structure safety is ensured.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a separated vibration isolation device applied to an upper cover of a subway is arranged in a vibration isolation space between an upper column pier and a lower column pier and comprises a vibration isolator, a leveling plate and a limiting table, wherein the leveling plate is pre-embedded on the bottom surface of the upper column pier, the vibration isolator and the limiting table are arranged between the leveling plate and the lower column pier, the limiting table is arranged on one side of the vibration isolation space, and the vibration isolator is arranged on the other side of the vibration isolation space at intervals from left to right; the upper end surface and the lower end surface of the vibration isolator are in contact with the leveling plate and the lower column pier; the limiting table is arranged on the lower column pier, and the upper end face of the limiting table is not contacted with the bottom surface of the leveling plate;
the utility model discloses a damping structure, including shock absorber, damping spring, dead lever, box, buffer spring cover, shock absorber structure, box outside is equipped with the sleeve pipe, the damping liquid level is intraductal and parcel buffer spring in the sleeve pipe, the buffer spring cover is established and is formed the bradyseism structure on the dead lever, bradyseism structure interval is established in the box, the box includes box and lower box, it connects in the bradyseism structure upper end to go up the box, the box is connected at the bradyseism structure lower extreme down.
Furthermore, the upper box body and the lower box body are both box bodies with openings at one ends, the openings of the upper box body and the lower box body are oppositely arranged, and the upper box body is sleeved on the lower box body to form the box body of the vibration isolator.
Furthermore, the top end of the buffer spring is contacted with the top surface of the inner cavity of the upper box body, and the bottom end of the buffer spring is contacted with the bottom surface of the inner cavity of the lower box body; and two ends of the fixed rod respectively penetrate through the upper box body and the lower box body and are fixed through fastening bolts.
Furthermore, the upper end face and the lower end face of the vibration isolator are provided with non-slip mats, the upper end face of the limiting table is provided with an isolation cushion mat, and the isolation cushion mat is not in contact with the bottom face of the leveling plate.
Preferably, the cushioning structures are arranged in groups and are arranged in the box body at uniform intervals.
Furthermore, the leveling plate is embedded at the bottom of the upper column pier and comprises fixing rods and a bottom plate, the fixing rods are arranged on the bottom plate at intervals and embedded in the upper column pier, and the bottom surface of the bottom plate is horizontal and is in contact with the upper end face of the vibration isolator.
Preferably, under the normal use state, the buffer spring is in a natural compression state.
Preferably, the limiting table is of a reinforced concrete structure and is fixed on the lower column pier.
A construction method of a separated vibration isolation device applied to an upper cover of a subway comprises the following steps:
s1, constructing the top plate surface of the station hall: according to the position, width and height required by design, bar-planting and roughening construction is carried out on the top plate surface of the station hall, so that the connection of new and old structures is stable and reliable;
s2, constructing a lower column pier: according to the drawing requirements, the construction of the lower pier is carried out according to the construction sequence of steel bar binding, template supporting and concrete pouring;
s3, mounting the vibration isolator: the vibration isolator is produced, preassembled and pre-tightened in a factory, and then is transported to a construction site for mounting the vibration isolator;
s4, constructing an upper column pier: constructing an upper column pier according to the construction sequence of building a template, placing a leveling plate and pouring concrete, and ensuring that the leveling plate is in a horizontal state in the construction process;
s5, adjusting the vibration isolator: and after the upper column pier is constructed, loosening the pre-tightened vibration isolator, and leveling again to finish construction.
Further, in step S3, during the installation and construction of the vibration isolator, the vibration isolator is assembled, the anti-slip pads are disposed on the upper and lower end surfaces of the vibration isolator, and then the vibration isolator is compressed and pre-tightened to be in a compressed state and placed on the lower pier.
The invention has the following beneficial effects:
the buffer spring and the fixed rod are combined into a buffering structure, the buffering structure moves in an environment with damping liquid to form a vibration isolator, the vibration isolator is arranged between the column piers of the building structure, the structure is effectively separated from a seismic source, and the vibration energy is reduced by utilizing the spring to achieve the effect of reducing vibration;
the seismic source and the building structure are effectively separated through the vibration isolator, so that the effects of energy dissipation and vibration reduction are achieved, the vibration isolator can be replaced, and safety and reliability can be guaranteed within the life span of the building structure.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of the vibration isolator of the present invention.
Reference numerals: 1-upper pier, 2-lower pier, 3-vibration isolator, 31-box, 311-upper box, 312-lower box, 32-buffer spring, 33-fixed rod, 4-leveling plate, 5-limiting table, 6-non-slip mat and 7-isolation buffer mat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in fig. 1 and 2, a separate vibration isolation device applied to an upper cover of a subway is arranged in a vibration isolation space between an upper column pier 1 and a lower column pier 2, and comprises a vibration isolator 3, a leveling plate 4 and a limiting table 5, wherein the leveling plate 4 is pre-embedded on the bottom surface of the upper column pier 1, the vibration isolator 3 and the limiting table 5 are arranged between the leveling plate 4 and the lower column pier 2, the limiting table 5 is arranged on one side of the vibration isolation space, and the vibration isolator 3 is arranged on the other side of the vibration isolation space at left and right intervals; the upper end surface and the lower end surface of the vibration isolator 3 are in contact with the leveling plate 4 and the lower column pier 2; the limiting table 5 is arranged on the lower column pier 2, and the upper end face of the limiting table is not contacted with the bottom face of the leveling plate 4.
According to the invention, the vibration isolator 3 is arranged to flexibly separate the pier, so that the vibration energy generated in the subway advancing process is absorbed and eliminated, the existing rubber vibration isolation method is broken, and the defects of low energy absorption efficiency, poor vibration isolation effect, short service time and labor waste in replacement in the rubber vibration isolation technology are overcome.
The newly-built building structure is established at the top of the subway station hall through the column piers, and when the subway runs, vibration is transmitted to the superstructure through the column piers. The invention divides the column pier into an upper column pier 1 and a lower column pier 2, and a vibration isolation space is arranged between the upper column pier and the lower column pier, and a vibration isolator 3 is arranged in the vibration isolation space to absorb and absorb vibration energy. Vibration energy is transmitted to lower column pier 2 through the station hall building on, further transmits to the lower box 312 with lower column pier 2 contact, then on vibration energy transmission to buffer spring 32, through buffer spring 32 whole parcel vibration about in the damping fluid carry out energy consumption, and then avoid vibration energy to transmit to newly-built building structure through rigid column pier on.
The vibration isolator 3 is arranged to improve the rigid pier into flexible connection by utilizing the relative motion of the upper box body 311 and the lower box body 312, vertical displacement caused by the vibration of the pier is absorbed, and meanwhile, energy absorption and vibration elimination are carried out through the expansion of the buffer spring 32 and the cooperation of the motion of the spring in damping liquid.
The leveling plate 4 is used for ensuring the levelness of the building structure and the balance and stability of stress of the vibration isolator 3; the limiting table 5 is used for limiting the movement of the vibration isolator 3 and preventing the vibration isolator from laterally moving and falling due to overlarge lateral force; the anti-slip pad 6 is used for offsetting the lateral force of the vibration isolator 3 to prevent the vibration isolator 3 from laterally moving, and avoids rigidly and fixedly connecting the vibration isolator 3 with the upper stud pier 1 and the lower stud pier 2, so that the vibration isolator 3 is effectively prevented from sliding under the condition of strong vibration; and the isolation cushion pad 7 is used for preventing the structure from being damaged by collision with the limiting table 5 when the upper column pier 1 and the lower column pier 2 vibrate up and down and move.
Further, there is no rigid connection between the upper pier 1 and the lower pier 2.
As shown in fig. 3, isolator 3 includes box 31, buffer spring 32, dead lever 33 and damping fluid, buffer spring 32 cover is established and is formed bradyseism structure on dead lever 33, bradyseism structure interval is established in box 31, box 31 includes box 311 and lower box 312, it connects in bradyseism structure upper end to go up box 311, box 312 is connected at bradyseism structure lower extreme down, the buffer spring 32 outside is equipped with the sleeve pipe, the damping fluid level is intraductal and parcel buffer spring 32 in the sleeve pipe.
Further, the sleeve is a conformal flexible sealing tube, and is wrapped on the outer side of the buffer spring 32, and damping liquid is filled in the sleeve. The sleeve is able to move with the damping spring 32 and cause the damping spring 32 to move under the damping fluid at all times.
As shown in fig. 3, the upper case 311 and the lower case 312 are both cases having an opening at one end, the openings of the upper case 311 and the lower case 312 are opposite, and the upper case 311 is sleeved on the lower case 312 to form the vibration isolator 3.
During operation, the buffer spring 32 extends and retracts to drive the upper box 311 and the lower box 312 to move up and down relatively, so as to absorb vibration and energy. The buffer spring 32 stretches in the damping liquid, so that the buffer spring has the functions of absorbing energy and cooling, and the noise generated when the buffer spring 32 moves is effectively reduced.
As shown in fig. 3, further, the top end of the buffer spring 32 contacts with the top surface of the inner cavity of the upper box 311, and the bottom end thereof contacts with the bottom surface of the inner cavity of the lower box 312; both ends of the fixing rod 33 pass through the upper case 311 and the lower case 312, respectively, and are fixed by fastening bolts.
As shown in fig. 2, anti-slip pads 6 are disposed on the upper and lower end surfaces of the vibration isolator 3, an isolation cushion 7 is disposed on the upper end surface of the limit table 5, and the isolation cushion 7 is not in contact with the bottom surface of the leveling plate 4.
Preferably, the cushioning structures are arranged in groups, and are arranged in the box body 31 at uniform intervals, and the cushioning structures are symmetrically arranged in the box body 31.
The number of the vibration isolators 3 is determined according to the structure of a newly-built building, the number of the cushioning structures in the box body 31 is determined according to the space and the stress, the cushioning structures are required to be symmetrically arranged in the box body 31, and the structural symmetry of the vibration isolators is ensured to ensure the stability and the stress balance. Preferably, three damping structures are arranged in each group, and two groups of damping structures are symmetrically arranged on each vibration isolator 3. In order to ensure the stability of the structural state of the pier, the vibration isolators 3 are required to be symmetrical in structure and stress is required to be symmetrical, and the stability and safety of the whole building are ensured after the vibration isolators are installed.
Further, leveling plate 4 is pre-buried in the bottom of last pier 1, including dead lever and bottom plate, the dead lever interval sets up on the bottom plate, buries underground in last pier 1, the bottom surface level of bottom plate and with isolator 3's up end contact.
Preferably, the buffer spring 32 is in a natural compressed state under normal use conditions.
Preferably, the limiting table 5 is of a reinforced concrete structure and is fixed on the lower column pier 2.
As shown in fig. 1, a construction method of a separated vibration isolation device applied to an upper cover of a subway includes the following steps:
s1, constructing the top plate surface of the station hall: according to the position, width and height required by design, bar-planting and roughening construction is carried out on the top plate surface of the station hall, so that the connection of new and old structures is stable and reliable;
s2, constructing the lower column pier 2: according to the drawing requirements, the construction of the lower pier 2 is carried out according to the construction sequence of steel bar binding, template supporting and concrete pouring;
s3, mounting the vibration isolator 3: the vibration isolator 3 is produced, preassembled and pre-tightened in a factory, and then transported to a construction site for installation of the vibration isolator 3;
s4, constructing an upper column pier 1: constructing the upper pier 1 according to the construction sequence of building a template, placing the leveling plate 4 and pouring concrete, and ensuring the leveling plate 4 to be in a horizontal state in the construction process;
s5, adjusting the vibration isolator 3: and after the construction of the upper pier 1 is finished, loosening the pre-tightened vibration isolator 3, leveling again, adjusting the buffer spring 32 to be in a natural compression state, and reserving a margin of 20mm to finish the construction.
Further, in step S3, during the installation and construction of the vibration isolator 3, the vibration isolator 3 is assembled first, then the anti-slip pads 6 are disposed on the upper and lower end surfaces of the vibration isolator 3, and then the vibration isolator 3 is compressed and pre-tightened to be in a compressed state and placed on the lower pier 2.
Further, in step S4, when the upper pier 1 is constructed, a supporting formwork is built on the upper surface of the hall, and the leveling plate 4 is placed on the formwork, followed by concrete casting.
Further, after the construction of the lower pier 2 is completed, the vibration isolator 3 is installed after the maintenance strength reaches 100% of the design strength; the upper pier 1 supports the template and the upper building structure strength of the upper pier 1 reaches 100% for dismantling.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims (10)

1. The utility model provides a be applied to disconnect-type vibration isolation mounting of subway upper cover establishes in the vibration isolation space between upper column pier (1) and lower column pier (2), characterized by: the vibration isolation device comprises a vibration isolator (3), a leveling plate (4) and a limiting table (5), wherein the leveling plate (4) is pre-embedded on the bottom surface of an upper pier (1), the vibration isolator (3) and the limiting table (5) are arranged between the leveling plate (4) and a lower pier (2), the limiting table (5) is arranged on one side of a vibration isolation space, and the vibration isolator (3) is arranged on the other side of the vibration isolation space at left and right intervals; the upper end surface and the lower end surface of the vibration isolator (3) are in contact with the leveling plate (4) and the lower column pier (2); the limiting table (5) is arranged on the lower column pier (2), and the upper end face of the limiting table is not contacted with the bottom surface of the leveling plate (4);
isolator (3) include box (31), buffer spring (32), dead lever (33) and damping fluid, buffer spring (32) cover is established and is formed the bradyseism structure on dead lever (33), bradyseism structure interval is established in box (31), box (31) are including last box (311) and lower box (312), it connects in bradyseism structure upper end to go up box (311), box (312) are connected at bradyseism structure lower extreme down, buffer spring (32) outside is equipped with the sleeve pipe, the damping fluid level is intraductal in the sleeve to parcel buffer spring (32).
2. The separated vibration isolation device applied to the upper cover of the subway as claimed in claim 1, wherein: go up box (311) and lower box (312) and be the box that one end was equipped with the opening, the opening of going up box (311) and lower box (312) sets up relatively, and goes up box (311) cover and establish the box that forms isolator (3) on lower box (312).
3. The separated vibration isolation device applied to the upper cover of the subway as claimed in claim 1, wherein: the top end of the buffer spring (32) is contacted with the top surface of the inner cavity of the upper box body (311), and the bottom end of the buffer spring is contacted with the bottom surface of the inner cavity of the lower box body (312); two ends of the fixing rod (33) respectively penetrate through the upper box body (311) and the lower box body (312) and are fixed through fastening bolts.
4. The separated vibration isolation device applied to the upper cover of the subway as claimed in claim 1, wherein: the upper end face and the lower end face of the vibration isolator (3) are provided with anti-slip pads (6), the upper end face of the limiting table (5) is provided with an isolation cushion pad (7), and the isolation cushion pad (7) is not in contact with the bottom face of the leveling plate (4).
5. The separated vibration isolation device applied to the upper cover of the subway as claimed in claim 1, wherein: the cushioning structures are arranged in groups and are arranged in the box body (31) at uniform intervals.
6. The separated vibration isolation device applied to the upper cover of the subway as claimed in claim 1, wherein: the leveling plate (4) is embedded at the bottom of the upper column pier (1) and comprises fixing rods and a bottom plate, the fixing rods are arranged on the bottom plate at intervals and embedded in the upper column pier (1), and the bottom surface of the bottom plate is horizontal and is in contact with the upper end face of the vibration isolator (3).
7. The separated vibration isolation device applied to the upper cover of the subway as claimed in claim 1, wherein: the buffer spring (32) is in a natural compression state.
8. The separated vibration isolation device applied to the upper cover of the subway as claimed in claim 1, wherein: the limiting table (5) is of a reinforced concrete structure and is fixed on the lower column pier (2).
9. The construction method of the separated type vibration isolating device applied to the upper cover of the subway according to any one of claims 1 to 8, wherein the method comprises the following steps:
s1, constructing the top plate surface of the station hall: according to the position, width and height required by design, bar-planting and roughening construction is carried out on the top plate surface of the station hall, so that the connection of new and old structures is stable and reliable;
s2, constructing the lower column pier (2): according to the drawing requirements, the construction of the lower pier (2) is carried out according to the construction sequence of steel bar binding, template supporting and concrete pouring;
s3, mounting the vibration isolator (3): the vibration isolator (3) is produced, preassembled and pre-tightened in a factory, and then is transported to a construction site for installation of the vibration isolator (3);
s4, constructing an upper column pier (1): constructing the upper pier (1) according to the construction sequence of building a template, placing the leveling plate (4) and pouring concrete, and ensuring that the leveling plate (4) is in a horizontal state in the construction process;
s5, adjusting the vibration isolator (3): and after the upper column pier (1) is constructed, loosening the pre-tightened vibration isolator (3), and leveling again to finish construction.
10. The construction method of the separated vibration isolating device applied to the upper cover of the subway as claimed in claim 9, wherein: in the step S3, during the installation and construction of the vibration isolator (3), the vibration isolator (3) is assembled, then the anti-skid pads (6) are arranged on the upper end surface and the lower end surface of the vibration isolator (3), and then the vibration isolator (3) is compressed and pre-tightened to be in a compressed state and placed on the lower pier (2).
CN202010344585.4A 2020-04-27 2020-04-27 Separated vibration isolation device applied to subway upper cover and construction method Pending CN111395412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010344585.4A CN111395412A (en) 2020-04-27 2020-04-27 Separated vibration isolation device applied to subway upper cover and construction method

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Application Number Priority Date Filing Date Title
CN202010344585.4A CN111395412A (en) 2020-04-27 2020-04-27 Separated vibration isolation device applied to subway upper cover and construction method

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Publication Number Publication Date
CN111395412A true CN111395412A (en) 2020-07-10

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Publication number Priority date Publication date Assignee Title
CN112095825A (en) * 2020-08-13 2020-12-18 中国建筑第八工程局有限公司 Vibration isolation structure of high-speed rail of underpass terminal building and construction method thereof

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