CN103603443B - Floor building equipment vibration isolation device and installation method thereof - Google Patents
Floor building equipment vibration isolation device and installation method thereof Download PDFInfo
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- CN103603443B CN103603443B CN201310631408.4A CN201310631408A CN103603443B CN 103603443 B CN103603443 B CN 103603443B CN 201310631408 A CN201310631408 A CN 201310631408A CN 103603443 B CN103603443 B CN 103603443B
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Abstract
The invention relates to the field of building equipment vibration absorption designing, in particular to a floor building equipment vibration isolation device. The floor building equipment vibration isolation device comprises an upper steel beam, a suspension rod and a lower steel beam. The two ends of the upper steel beam are fixed to columns, wherein each column is a main structure column or a concrete shear wall or a steel column with enough strength and stiffness arranged on a reinforced concrete main beam. The lower steel beam is overhung on the upper steel beam through the suspension rod; vibratory equipment or a base of the vibratory equipment is erected on the lower steel beam through a first rubber pad; through three times of vibration isolation, a good vibration isolation and noise reduction effect is achieved. The invention further relates to an installation method of the floor building equipment vibration isolation device; by installing the floor building equipment vibration isolation device according to steps of the installation method, it can be guaranteed that the installation process is simplified and standardized, the steps are short in construction period, and construction processes are simple and easy to operate.
Description
Technical field
The present invention relates to building implements Vibration Absorption Designing field, particularly a kind of flooring building implements isolation mounting and mounting method thereof.
Background technology
Because urban land day is becoming tight, house, office and business highrise building have become the Main Trends of The Development of urban architecture.In these highrise buildings, the building implementss such as air conditioner cold-heat source, blower fan, cooling tower, water pump are often placed on building basement, mechanical floor or roof, these equipment run up generation exciting force, cause foundation vibration, and produce solid-borne sound, if vibration isolation measure is taked improper, obviously there is vibration & noise with equipment adjacent room, resident family is produced and has a strong impact on.
Existing isolation mounting has a variety of, but its effect is all not ideal enough, such as Chinese patent " serious suspended floating plate vibration isolation system " (application number: 201120108513.6; Publication date: on 02 22nd, 2012) disclose a kind of technical scheme: equipment is fixed on the floating plate of region, region floating plate is made up of multiple prefabricated vibration isolation unit fluid concrete, by the vibration isolator support in prefabricated vibration isolation unit on floor or ground, with xegregating unit noise and vibration.The program is the more typical method to set up of one at last, and its vibration isolating effect is not ideal enough.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of flooring building implements isolation mounting, possesses good vibration isolating effect and is convenient to installation, short construction period, reduces costs.
For realizing above object, the technical solution used in the present invention is: a kind of flooring building implements isolation mounting, comprise girder steel, suspension rod and lower girder steel, the two ends of described upper girder steel are fixed on pillar, pillar is agent structure post or concrete shear force wall or has the steel column that the reinforced concrete girder of sufficient intensity and rigidity is arranged, lower girder steel is suspended on upper girder steel by suspension rod, and the base of vibratory equipment or vibratory equipment is located on lower girder steel by the first rubber mount.
Compared with prior art, there is following technique effect in the present invention: upper girder steel is equivalent to, and " float and build concrete slab " realizes a vibration isolation, upper and lower girder steel realizes two-stage vibration isolation by suspension rod connection, vibratory equipment is fixed on lower girder steel by the first rubber pad and realizes three vibration isolation, by this three vibration isolation, reach good vibration insulation and noise reduction effect.
Another object of the present invention is the mounting method providing a kind of flooring building implements isolation mounting, the convenient and swift installation completing flooring building implements isolation mounting.
For realizing above object, the technical solution used in the present invention is: the mounting method of foregoing flooring building implements isolation mounting, comprises the steps: (A) preparation of construction, according to the size determination isolation mounting concrete scheme of vibratory equipment; (B) girder steel, lower girder steel, suspension rod in making; (C) girder steel is installed; (D) suspension rod is installed; (E) lower girder steel is installed; (F) the first rubber pad is installed; (G) vibrating isolation system leveling; (H) vibratory equipment is arranged on lower girder steel; (I) vibration isolating effect test is carried out in coupled system debugging, if defective, taken off by vibratory equipment, return step G from lower girder steel; If qualified, IMM algorithm.
Compared with prior art, there is following technique effect in the present invention: the installation being carried out flooring building implements isolation mounting by this step, can ensure simplifying of installation process, standardization, and this step short construction period, construction technology is simple to operation.
Accompanying drawing explanation
Fig. 1 is the structural representation that the embodiment of the present invention one is arranged on new building;
Fig. 2 is the structural representation that the embodiment of the present invention one is arranged on existent building;
Fig. 3 is the structural representation that the embodiment of the present invention two is arranged on new building;
Fig. 4 is the structural representation that the embodiment of the present invention two is arranged on existent building;
Fig. 5 is vibratory equipment and lower girder steel fixed connection place structure enlarged diagram;
Fig. 6 is that lower girder steel matches with the 3rd rubber pad the structural representation located;
Fig. 7 is upper and lower girder steel and hanger erection schematic diagram;
Fig. 8 is installation procedure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 8, the present invention is described in further detail.
In vibratory equipment 30 running, causing structural vibration, normally running vibration effect to building and surrounding environment to reduce equipment, suitable isolation mounting need be installed between equipment and structure, reduce the power effect that vibration source is delivered to basis, i.e. " every power ", belong to active vibration isolation problem.Frequency is than ν=f/f
d, wherein f is the excited frequency of vibration source, f
dfor the intrinsic frequency of vibrating isolation system, when frequency is very less than ν, transmit than T ≈ 1, the power width being delivered to basis is substantially identical with the exciting force of vibratory equipment 30; When frequency is than ν=1, produce resonance, transmit very larger than T, produce resonance, exciting force is exaggerated, and the power being delivered to basis is maximum, should force down formant by increasing damping; When frequency is very larger than ν, transmit than T ≈ 0, the power width being delivered to basis is very little, therefore can improve vibration isolating effect by improving frequency than the method for ν.
Consult Fig. 1 to Fig. 4, a kind of flooring building implements isolation mounting, comprise girder steel 11, suspension rod 12 and lower girder steel 13, the two ends of described upper girder steel 11 are fixed on pillar 20, pillar 20 is agent structure post or concrete shear force wall or has the steel column that the reinforced concrete girder of sufficient intensity and rigidity is arranged, lower girder steel 13 is suspended on upper girder steel 11 by suspension rod 12, and the base 31 of vibratory equipment 30 or vibratory equipment 30 is erected on lower girder steel 13 by the first rubber pad 14a, as shown in Figure 5.Here, the intrinsic frequency of the isolation mounting that upper girder steel 11, suspension rod 12, lower girder steel 13 form with rubber pad is significantly less than vibration frequency when vibratory equipment operates, and increases isolation frequency than ν, effectively reduces vibratory equipment 30 to the impact of building.
When installing girder steel 11, first should select on agent structure post or concrete shear force wall, if because limitting equipment installation site, the reinforced concrete girder should selecting to have sufficient intensity and rigidity arranging steel column, upper girder steel 11 is fixed on steel column.The overhead height of vibratory equipment should consider roofing or flooring normally use after maintenance or the minimum constructive height that needs of inspection and repair shop, meet building and normally keep in repair the requirement with overhaul of the equipments.
In addition, upper and lower girder steel 11,13 here and suspension rod 12 require to have enough strength and stiffness, design according to the deadweight standard value size of the parameter of vibratory equipment 30 and upper and lower girder steel 11,13 and suspension rod 12 through professional structural steel design personnel.Upper girder steel 11, suspension rod 12, lower girder steel 13 are when selecting, specify according in " loading code for design of building structures " (GB50009-2001) 3.2.5,4.6.2 article, the permanent load partial safety factor value 1.35 of upper girder steel, suspension rod, lower girder steel, dynamical system value 1.3.
As preferred version of the present invention, in order to avoid lower girder steel 13 shakes, displacement constraint need be carried out to lower girder steel two ends, simultaneously in order to give full play to the vibration isolating effect of this device, flexible displacement constraint is adopted to the end of lower girder steel 13, as follows specifically: to be provided with the 3rd rubber pad 14c between described lower girder steel 13 two ends and pillar 20 for limiting the forced vibration of lower girder steel 13,3rd rubber pad 14c is fixed on steel column on the 3rd steel plate 15c that agent structure post or concrete shear force wall are arranged or described by chemical bolt 16, as shown in Figure 6.
According to the difference of upper girder steel 11 mounting points, provide two specific embodiments for reference here.
Embodiment one: described pillar 20 is agent structure post or concrete shear force wall, pillar 20 is provided with the first steel plate 15a, the first steel plate 15a is fixed by chemical bolt 16, and described upper girder steel 11 and the first steel plate 15a are welded and fixed; 3rd rubber pad 14c is fixed on the 3rd steel plate 15c by chemical bolt 16.Fixing by girder steel 11 in the first steel plate 15a realization and agent structure post or concrete shear force wall, its fixed effect is better.Chemical bolt mentioned here is made up of chemical sebific duct, screw rod, packing ring and nut, and screw rod, packing ring, nut (hexagonal) generally have galvanized steel and stainless steel two kinds (also can galvanizing on request).Chemistry sebific duct (or with plastics packed medicament pipe) is containing reacting resin, curing compound and quartz particles.
Embodiment two: described pillar 20 is for having the steel column that the reinforced concrete girder of sufficient intensity and rigidity is arranged, concrete girder is fixedly installed the second steel plate 15b, steel column is welded on the second steel plate 15b, the two ends of upper girder steel 11 are set up at steel column top, be provided with the second rubber pad 14b between upper girder steel 11 and steel column top, upper girder steel 11 is fixed by chemical bolt 16 with steel column top; 3rd rubber pad 14c is fixed on described steel column by chemical bolt 16.Here, upper girder steel 11 and steel column top arrange the second rubber pad 14b and avoid reinforced concrete girder forced vibration.
The concrete structure of upper and lower girder steel 11,13 and suspension rod 12 also has multiple choices, here a comparatively preferred scheme is provided: described upper and lower girder steel 11,13 adopts channel-section steel or i iron or welding rectangle steel to make, upper and lower girder steel 11,13 respectively has two, and two upper girder steel 11 length are consistent, two lower girder steel 13 length are consistent; Described suspension rod 12 is with externally threaded round steel, round steel is provided with eight, two round steel form one group, every root girder steel 11 is provided with two groups of round steel and these two groups of round steel are arranged near the two ends of upper girder steel 11, round steel passes through the 4th steel plate 15d and nut and upper and lower girder steel 11,13 to be fixed, bullet pad 17 is provided with between nut and the 4th steel plate 15d, between suspension rod 12 and upper and lower girder steel 11,13 to be fixedly connected with mode various, all adopt mounting means as shown in Figure 7 to realize its suspension in the present embodiment one, two and connect.If vibratory equipment is very heavy, many layouts several upper and lower girder steels 11,13 can be considered.
Consult Fig. 8, the installation process of this device is also very important, have to pass through leveling, measure of merit qualified after can come into operation.The mounting method of foregoing flooring building implements isolation mounting, comprises the steps: (A) preparation of construction, according to the size determination isolation mounting concrete scheme of vibratory equipment; (B) girder steel 11, suspension rod 12, lower girder steel 13 in making; (C) girder steel 11 is installed; (D) suspension rod 12 is installed; (E) lower girder steel 13 is installed; (F) the first rubber pad 14a is installed; (G) vibrating isolation system leveling; (H) vibratory equipment 30 is arranged on lower girder steel 13; (I) vibration isolating effect test is carried out in coupled system debugging, if defective, taken off by vibratory equipment 30, return step G from lower girder steel 13; If qualified, IMM algorithm.
In step, primarily of comprising the following steps: (A1) tentatively determines the structure of girder steel, the radical of suspension rod and model, the model of rubber pad and quantity according to the operating weight of vibratory equipment 30, equipment planar dimension, the concrete condition etc. of intending advancing equipment place, note, here being initial option model, quantity etc., is not material object; (A2) analyze the mechanical model of refinement place isolation mounting, be the isolation mounting that several vibration isolators are in parallel and in series, utilize finite element analysis software ANSYS, analyze the equivalent stiffness obtaining isolation mounting; (A3) according to involving vibrations equipment, isolation mounting in the quality of interior whole vibration isolation system, and the equivalent stiffness obtained above, calculates the intrinsic frequency of vibration isolation system; (A4) according to the rotating speed of vibratory equipment 30 major impetus device, the major disturbances frequency of vibratory equipment 30 is calculated; (A5) calculating the transmissibility T of isolation mounting, according to the recommended value of the T specified in " heating and ventilation and In Air Conditioning Design specification " (GB50019-2003) provision instruction card 11, as do not reached requirement, repeating steps A 1-A5, until meet the demands.
The manufacturing process of upper and lower girder steel 11,13 repeats no more herein, but in step G, when carrying out leveling to equipment, the levelness that equipment is installed is less than or equal to ten thousand/, axiality and gap reach code requirement.
Similarly, in embodiment one, because upper girder steel 11 is fixed on agent structure post or concrete shear force wall by the first steel plate 15a, therefore, described step C comprises the steps: (C1) if new building, pre-buried described first steel plate 15a on agent structure post or concrete shear force wall; If existent building, agent structure post or concrete shear force wall fix the first steel plate 15a by rear anchoring method; (C2) two ends of upper girder steel 11 are welded on the installation the first steel plate 15a completing girder steel 11; Described step e comprises the steps: that lower girder steel 13 is suspended on suspension rod 12 by (E1); (E2) the 3rd rubber pad 14c is fixed on spacing for the two ends of lower girder steel 13 installation completing lower girder steel 11 on the 3rd steel plate 15c.
In embodiment two, upper girder steel 11 is fixed on steel column by the second rubber pad 14b, steel column is fixed by the second steel plate 15b and reinforced concrete girder, therefore, described step C comprises the steps: (C1) if new building, pre-buried the second described steel plate 15b on reinforced concrete girder; If existent building, reinforced concrete girder fixes the second steel plate 15b by rear anchoring method; (C2) steel column is welded on the second steel plate 15b; (C3) the second rubber pad 14b is placed on steel column top; (C4) two ends of upper girder steel 11 are set up on the second rubber pad 14b; (C5) upper girder steel 11 and steel column top fixedly complete the installation of upper girder steel 11 by chemical bolt 16; Described step e comprises the steps: that lower girder steel 13 is suspended on suspension rod 12 by (E1); (E2) the 3rd rubber pad 14c is fixed on spacing for the two ends of lower girder steel 13 installation completing lower girder steel 13 on steel column.
Claims (10)
1. a flooring building implements isolation mounting, it is characterized in that: comprise girder steel (11), suspension rod (12) and lower girder steel (13), the two ends of described upper girder steel (11) are fixed on pillar (20), pillar (20) is for agent structure post or concrete shear force wall or have the steel column that the reinforced concrete girder of sufficient intensity and rigidity is arranged, lower girder steel (13) is suspended on upper girder steel (11) by suspension rod (12), and the base (31) of vibratory equipment (30) or vibratory equipment (30) is erected on lower girder steel (13) by the first rubber pad (14a).
2. flooring building implements isolation mounting as claimed in claim 1, it is characterized in that: be provided with the 3rd rubber pad (14c) between described lower girder steel (13) two ends and pillar (20) for limiting lower girder steel (13) forced vibration, the 3rd rubber pad (14c) is fixed on the upper or described steel column of the 3rd steel plate (15c) that agent structure post or concrete shear force wall are arranged by chemical bolt (16).
3. flooring building implements isolation mounting as claimed in claim 2, it is characterized in that: described pillar (20) is agent structure post or concrete shear force wall, pillar (20) is provided with the first steel plate (15a), first steel plate (15a) is fixed by chemical bolt (16), and described upper girder steel (11) and the first steel plate (15a) are welded and fixed; 3rd rubber pad (14c) is fixed on the 3rd steel plate (15c) by chemical bolt (16).
4. flooring building implements isolation mounting as claimed in claim 2, it is characterized in that: described pillar (20) is for having the steel column that the reinforced concrete girder of sufficient intensity and rigidity is arranged, concrete girder is fixedly installed the second steel plate (15b), steel column is welded on the second steel plate (15b), the two ends of upper girder steel (11) are set up at steel column top, be provided with the second rubber pad (14b) between upper girder steel (11) and steel column top, upper girder steel (11) is fixed by chemical bolt (16) with steel column top; 3rd rubber pad (14c) is fixed on described steel column by chemical bolt (16).
5. the flooring building implements isolation mounting as described in claim 3 or 4, it is characterized in that: described upper and lower girder steel (11,13) adopts channel-section steel or i iron or welding rectangle steel to make, upper and lower girder steel (11,13) respectively has two, and two upper girder steel (11) length are consistent, two lower girder steel (13) length are consistent; Described suspension rod (12) is with externally threaded round steel, round steel is provided with eight, two round steel form one group, girder steel (11) is provided with two groups of round steel to every root and these two groups of round steel are arranged near the two ends of upper girder steel (11), round steel passes through the 4th steel plate (15d) and nut and upper and lower girder steel (11,13) to be fixed, and is provided with bullet pad (17) between nut and the 4th steel plate (15d).
6. the mounting method of flooring building implements isolation mounting as claimed in claim 1, comprises the steps:
(A) preparation of construction, according to the size determination isolation mounting concrete scheme of vibratory equipment;
(B) girder steel (11), suspension rod (12), lower girder steel (13) in making;
(C) girder steel (11) is installed;
(D) suspension rod (12) is installed;
(E) lower girder steel (13) is installed;
(F) the first rubber pad (14a) is installed;
(G) vibrating isolation system leveling;
(H) vibratory equipment (30) is arranged on lower girder steel (13);
(I) vibration isolating effect test is carried out in coupled system debugging, if defective, taken off by vibratory equipment (30), return step G from lower girder steel (13); If qualified, IMM algorithm.
7. the mounting method of flooring building implements isolation mounting as claimed in claim 6, it is characterized in that: described pillar (20) is agent structure post or concrete shear force wall, pillar (20) is provided with the first steel plate (15a), first steel plate (15a) is fixed by chemical bolt (16), and described upper girder steel (11) and the first steel plate (15a) are welded and fixed; Be provided with the 3rd rubber pad (14c) between described lower girder steel (13) two ends and pillar (20) for limiting lower girder steel (13) forced vibration, the 3rd rubber pad (14c) is fixed on by chemical bolt (16) on the 3rd steel plate (15c) that agent structure post or concrete shear force wall are arranged.
8. the mounting method of flooring building implements isolation mounting as claimed in claim 6, it is characterized in that: described pillar (20) is for having the steel column that the reinforced concrete girder of sufficient intensity and rigidity is arranged, concrete girder is fixedly installed the second steel plate (15b), steel column is welded on the second steel plate (15b), the two ends of upper girder steel (11) are set up at steel column top, be provided with the second rubber pad (14b) between upper girder steel (11) and steel column top, upper girder steel (11) is fixed by chemical bolt (16) with steel column top; Be provided with the 3rd rubber pad (14c) between described lower girder steel (11) two ends and pillar (20) for limiting lower girder steel (13) forced vibration, the 3rd rubber pad (14c) is fixed on described steel column by chemical bolt (16).
9. the mounting method of flooring building implements isolation mounting as claimed in claim 7, is characterized in that: described step C comprises the steps:
(C1) if new building, pre-buried described first steel plate (15a) on agent structure post or concrete shear force wall; If existent building, agent structure post or concrete shear force wall fix the first steel plate (15a) by rear anchoring method;
(C2) two ends of upper girder steel (11) are welded on the installation the first steel plate (15a) completing girder steel (11);
Described step e comprises the steps:
(E1) lower girder steel (13) is suspended on suspension rod (12);
(E2) the 3rd rubber pad (14c) is fixed on spacing for the two ends of lower girder steel (13) installation completing lower girder steel (11) on the 3rd steel plate (15c).
10. the mounting method of flooring building implements isolation mounting as claimed in claim 8, is characterized in that: described step C comprises the steps:
(C1) if new building, pre-buried described the second steel plate (15b) on reinforced concrete girder; If existent building, reinforced concrete girder fixes the second steel plate (15b) by rear anchoring method;
(C2) steel column is welded on the second steel plate (15b);
(C3) the second rubber pad (14b) is placed on steel column top;
(C4) two ends of upper girder steel (11) are set up on the second rubber pad (14b);
(C5) upper girder steel (11) and steel column top fixedly complete the installation of girder steel (11) by chemical bolt (16);
Described step e comprises the steps:
(E1) lower girder steel (13) is suspended on suspension rod (12);
(E2) the 3rd rubber pad (14c) is fixed on spacing for the two ends of lower girder steel (13) installation completing lower girder steel (13) on steel column.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310631408.4A CN103603443B (en) | 2013-11-29 | 2013-11-29 | Floor building equipment vibration isolation device and installation method thereof |
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| CN201310631408.4A CN103603443B (en) | 2013-11-29 | 2013-11-29 | Floor building equipment vibration isolation device and installation method thereof |
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| CN103603443B true CN103603443B (en) | 2015-07-15 |
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| CN106223645B (en) * | 2016-07-30 | 2018-08-07 | 浙江天诚中央空调工程有限公司 | Air conditioner base-isolated equipment computer room and its construction method and regulating system |
| CN114737814B (en) * | 2022-05-22 | 2024-04-12 | 北京工业大学 | Vibration reduction power transmission tower system with composite vibration isolation base and cantilever tuning beam |
| CN114809058A (en) * | 2022-06-15 | 2022-07-29 | 中建八局第二建设有限公司 | Equipment foundation of precision equipment and construction method |
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| JP2009002072A (en) * | 2007-06-22 | 2009-01-08 | Daiwa House Ind Co Ltd | Vibration proof floor structure of lightweight steel-framed construction or the like |
| CN201531034U (en) * | 2009-04-22 | 2010-07-21 | 浙江省东阳第三建筑工程有限公司 | Vibration isolation and noise reduction equipment foundation of steel frame floating construction |
| CN102287578A (en) * | 2011-07-29 | 2011-12-21 | 华东理工大学 | Spring-rubber vibration isolating hanging frame for damping vibration and reducing noise for warm ventilation pipe |
| CN202811963U (en) * | 2012-09-13 | 2013-03-20 | 厦门嘉达环保建造工程有限公司 | Suspension vibration isolation structure |
| CN203583707U (en) * | 2013-11-29 | 2014-05-07 | 安徽同济建设集团有限责任公司 | Vibration isolation device for floor construction equipment |
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