CN103603443A - 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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- CN103603443A CN103603443A CN201310631408.4A CN201310631408A CN103603443A CN 103603443 A CN103603443 A CN 103603443A CN 201310631408 A CN201310631408 A CN 201310631408A CN 103603443 A CN103603443 A CN 103603443A
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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 generation exciting force that runs up, cause foundation vibration, and produce solid-borne sound, if vibration isolation measure is taked improper, obviously exist vibration and noise ，Dui resident family to produce with equipment adjacent room and have a strong impact on.
Existing isolation mounting has a variety of, but its effect is all not ideal enough, such as the serious suspended floating plate vibration isolation system > of Chinese patent < < > (application number: 201120108513.6; Publication date: on 02 22nd, 2012) a kind of technical scheme is disclosed: equipment is fixed on the floating plate of region, region floating plate is made by a plurality of prefabricated vibration isolation unit fluid concretes, by the vibration isolator support in prefabricated vibration isolation unit on floor or ground, with xegregating unit noise and vibration.This scheme is a kind of more typical method to set up 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 be agent structure post or concrete shear force wall or there is sufficient intensity and the reinforced concrete girder of rigidity on the steel column that arranges, 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 " the floating concrete slab of building " and realizes a vibration isolation, upper and lower girder steel is connected and is realized two-stage vibration isolation by suspension rod, vibratory equipment is fixed on and on lower girder steel, is realized three vibration isolation by the first rubber pad, by this three vibration isolation, reach good vibration insulation and noise reduction effect.
Another object of the present invention is to provide a kind of mounting method of flooring building implements isolation mounting, the convenient and swift installation that completes 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, comprise the steps: (A) preparation of construction, and according to the size of vibratory equipment, determine isolation mounting concrete scheme; (B) girder steel, lower girder steel, suspension rod in making; (C) install girder steel; (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, vibratory equipment is taken off from lower girder steel, returns to step G; If qualified, the examination of handing over.
Compared with prior art, there is following technique effect in the present invention: by this step, carry out the installation of flooring building implements isolation mounting, can guarantee simplifying of installation process, standardization, and this step short construction period, construction technology are simple to operation.
Accompanying drawing explanation
Fig. 1 is that the embodiment of the present invention one is arranged on the structural representation on new building;
Fig. 2 is that the embodiment of the present invention one is arranged on old architectural structural representation;
Fig. 3 is that the embodiment of the present invention two is arranged on the structural representation on new building;
Fig. 4 is that the embodiment of the present invention two is arranged on old architectural structural representation;
Fig. 5 is vibratory equipment and lower girder steel fixed connection place structure enlarged diagram;
Fig. 6 is the structural representation that lower girder steel matches with the 3rd rubber pad and locates;
Fig. 7 is upper and lower girder steel and hanger erection schematic diagram;
Fig. 8 is installation procedure schematic diagram of the present invention.
The specific embodiment
Below in conjunction with Fig. 1 to Fig. 8, the present invention is described in further detail.
In vibratory equipment 30 runnings, cause structural vibration, for minimizing equipment normally moves the vibration effect to building and surrounding environment, suitable isolation mounting need be installed between equipment and structure, reduce vibration source and be delivered to basic power effect, i.e. " every power ", belongs to active vibration isolation problem.Frequency ratio ν=f/f
d, the excited frequency that wherein f is vibration source, f
dfor the intrinsic frequency of vibrating isolation system, when frequency ratio ν is very little, transmit than T ≈ 1, the exciting force that is delivered to basic power width and vibratory equipment 30 is basic identical; When frequency ratio ν=1, produce resonance, transmit very greatlyr than T, produce resonance, exciting force is exaggerated, and is delivered to basic power width maximum, should force down formant by increase damping; When frequency ratio ν is very large, transmit than T ≈ 0, be delivered to basic power width very little, therefore can improve vibration isolating effect by improving the method for frequency ratio 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 for agent structure post or concrete shear force wall or there is sufficient intensity and the reinforced concrete girder of rigidity on the steel column that arranges, 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, as shown in Figure 5 by the first rubber pad 14a.Here, the vibration frequency when intrinsic frequency of the isolation mounting that upper girder steel 11, suspension rod 12, lower girder steel 13 and rubber pad form is significantly less than vibratory equipment running, has increased isolation frequency than ν, effectively reduces the impact of vibratory equipment 30 on building.
When installing girder steel 11, should first be chosen on agent structure post or concrete shear force wall, if limit because of equipment installation site, should select to have on the reinforced concrete girder of sufficient intensity and rigidity steel column is set, upper girder steel 11 is fixed on steel column.The overhead height of vibratory equipment should be considered the maintenance after roofing or the normal use of flooring or overhaul needed minimum constructive height, meet the requirement of the normal maintenance of building and overhaul of the equipments.
In addition, the upper and lower girder steel 11,13 here and suspension rod 12 require to have enough strength and stiffness, through professional structural steel design personnel, 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, design.Upper girder steel 11, suspension rod 12, lower girder steel 13 are when selecting, according to stipulating in < < loading code for design of building structures > > (GB50009-2001) 3.2.5,4.6.2 bar, 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, for fear of lower girder steel 13, shake, need carry out displacement constraint to lower girder steel two ends, simultaneously in order to give full play to the vibration isolating effect of this device, the end of lower girder steel 13 is adopted to flexible displacement constraint, as follows specifically: described lower girder steel 13 two ends and 20, pillar are provided with the 3rd rubber pad 14c for limiting lower girder steel 13 forced vibrations, the 3rd rubber pad 14c is fixed on by chemical bolt 16 on the 3rd steel plate 15c arranging on agent structure post or concrete shear force wall or on described steel column, as shown in Figure 6.
According to the difference of upper girder steel 11 mounting points, provide two specific embodiments for reference here.
Embodiment mono-: described pillar 20 is agent structure post or concrete shear force wall, is provided with the first steel plate 15a on pillar 20, and the first steel plate 15a is fixing by chemical bolt 16, and described upper girder steel 11 and the first steel plate 15a are welded and fixed; The 3rd rubber pad 14c is fixed on the 3rd steel plate 15c by chemical bolt 16.By fixing of girder steel 11 and agent structure post or concrete shear force wall in the first steel plate 15a realization, its fixed effect is better.Here said chemical bolt is comprised of chemical sebific duct, screw rod, packing ring and nut, and screw rod, packing ring, nut (hexagonal) generally have galvanized steel and two kinds of stainless steels (also galvanizing on request).Chemistry sebific duct (or with plastics packed medicament pipe) contains reacting resin, curing compound and quartz particles.
Embodiment bis-: described pillar 20 is for having the steel column arranging on the reinforced concrete girder of sufficient intensity and rigidity, on concrete girder, be fixedly installed the second steel plate 15b, steel column is welded on the second steel plate 15b, set up at steel column top at the two ends of upper girder steel 11, between upper girder steel 11 and steel column top, be provided with the second rubber pad 14b, upper girder steel 11 is fixing by chemical bolt 16 with steel column top; The 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 provide a comparatively preferred scheme: 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, and 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, on every upper girder steel 11, be provided with two groups of round steel and this two groups of round steel near the two ends layout of upper girder steel 11, it is fixing that round steel passes through the 4th steel plate 15d and nut and upper and lower girder steel 11,13, between nut and the 4th steel plate 15d, be provided with bullet pad 17, between suspension rod 12 and upper and lower girder steel 11,13 to be fixedly connected with mode various, in the present embodiment one, two, all adopt mounting means as shown in Figure 7 to realize its suspension and connect.If vibratory equipment is very heavy, can consider several upper and lower girder steels 11,13 of arranging more.
Consult Fig. 8, the installation process of this device is also very important, must after leveling, measure of merit are qualified, 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 of vibratory equipment, determines isolation mounting concrete scheme; (B) girder steel 11, suspension rod 12, lower girder steel 13 in making; (C) install girder steel 11; (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, vibratory equipment 30 is taken off from lower girder steel 13, returns to step G; If qualified, the examination of handing over.
In steps A, mainly by comprising the following steps: (A1) according to the preliminary definite structure of girder steel, the model of the radical of suspension rod and model, rubber pad and the quantity such as concrete condition in the operating weight of vibratory equipment 30, equipment planar dimension, plan 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, for several vibration isolators are in parallel and isolation mounting in series, utilize finite element analysis software ANSYS, analyze the equivalent stiffness that obtains isolation mounting; (A3) quality at interior whole vibration isolation system according to involving vibrations equipment, isolation mounting, and the equivalent stiffness obtaining above, calculates the intrinsic frequency of vibration isolation system; (A4), according to the rotating speed of vibratory equipment 30 major impetus devices, calculate the main forcing frequency of vibratory equipment 30; (A5) calculate the transmissibility T of isolation mounting, according to the recommended value of the T of regulation in < < heating and ventilation and In Air Conditioning Design standard > > (GB50019-2003) clause instruction card 11, as do not reach requirement, repeating step A1-A5, until meet the demands.
The manufacturing process of upper and lower girder steel 11,13 repeats no more herein, but in step G, and when equipment is carried out to leveling, the levelness that equipment is installed is less than or equal to ten thousand/, axiality and gap reach code requirement.
Similarly, in embodiment mono-, because upper girder steel 11 is fixed on agent structure post or concrete shear force wall, therefore by the first steel plate 15a, described step C comprises the steps: (C1) if new building, pre-buried described the first steel plate 15a on agent structure post or concrete shear force wall; If old building is fixed the first steel plate 15a by rear anchoring method on agent structure post or concrete shear force wall; (C2) two ends of upper girder steel 11 are welded on the installation that completes girder steel 11 on the first steel plate 15a; Described step e comprises the steps: that (E1) is suspended in lower girder steel 13 on suspension rod 12; (E2) the 3rd rubber pad 14c is fixed on the 3rd steel plate 15c above by the spacing installation that completes lower girder steel 11 in the two ends of lower girder steel 13.
In embodiment bis-, 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 old building is fixed the second steel plate 15b by rear anchoring method on reinforced concrete girder; (C2) steel column is welded on the second steel plate 15b; (C3) the second rubber pad 14b is placed on steel column top; (C4) set up on the second rubber pad 14b at the two ends of upper girder steel 11; (C5) upper girder steel 11 fixedly completes the installation of upper girder steel 11 with steel column top by chemical bolt 16; Described step e comprises the steps: that (E1) is suspended in lower girder steel 13 on suspension rod 12; (E2) the 3rd rubber pad 14c is fixed on steel column the spacing installation that completes lower girder steel 13 in the two ends of lower girder steel 13.
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) for agent structure post or concrete shear force wall or there is sufficient intensity and the reinforced concrete girder of rigidity on the steel column that arranges, it is upper that lower girder steel (13) is suspended in 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: between described lower girder steel (13) two ends and pillar (20), be provided with the 3rd rubber pad (14c) 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) arranging on agent structure post or concrete shear force wall or on described steel column.
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, on pillar (20), be provided with the first steel plate (15a), the first steel plate (15a) is fixing by chemical bolt (16), and described upper girder steel (11) is welded and fixed with the first steel plate (15a); The 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 arranging on the reinforced concrete girder of sufficient intensity and rigidity, on concrete girder, be fixedly installed the second steel plate (15b), steel column is welded on the second steel plate (15b), set up at steel column top at the two ends of upper girder steel (11), between upper girder steel (11) and steel column top, be provided with the second rubber pad (14b), upper girder steel (11) is fixing by chemical bolt (16) with steel column top; The 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, and two lower girder steels (13) length is consistent; Described suspension rod (12) is with externally threaded round steel, round steel is provided with eight, two round steel form one group, on every upper girder steel (11), be provided with two groups of round steel and this two groups of round steel near the two ends layout of upper girder steel (11), it is fixing that round steel passes through the 4th steel plate (15d) and nut and upper and lower girder steel (11,13), between nut and the 4th steel plate (15d), is provided with bullet pad (17).
6. the mounting method of flooring building implements isolation mounting as claimed in claim 1, comprises the steps:
(A) preparation of construction, determines isolation mounting concrete scheme according to the size of vibratory equipment;
(B) girder steel (11), suspension rod (12), lower girder steel (13) in making;
(C) install girder steel (11);
(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, vibratory equipment (30) is taken off from lower girder steel (13), returns to step G; If qualified, the examination of handing over.
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, on pillar (20), be provided with the first steel plate (15a), the first steel plate (15a) is fixing by chemical bolt (16), and described upper girder steel (11) is welded and fixed with the first steel plate (15a); Between described lower girder steel (13) two ends and pillar (20), be provided with the 3rd rubber pad (14c) for limiting lower girder steel (13) forced vibration, the 3rd rubber pad (14c) is fixed on the 3rd steel plate (15c) arranging on agent structure post or concrete shear force wall by chemical bolt (16).
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 arranging on the reinforced concrete girder of sufficient intensity and rigidity, on concrete girder, be fixedly installed the second steel plate (15b), steel column is welded on the second steel plate (15b), set up at steel column top at the two ends of upper girder steel (11), between upper girder steel (11) and steel column top, be provided with the second rubber pad (14b), upper girder steel (11) is fixing by chemical bolt (16) with steel column top; Between described lower girder steel (11) two ends and pillar (20), be provided with the 3rd rubber pad (14c) 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 the first steel plate (15a) on agent structure post or concrete shear force wall; If old building is fixed the first steel plate (15a) by rear anchoring method on agent structure post or concrete shear force wall;
(C2) two ends of upper girder steel (11) are welded on the installation that completes girder steel (11) on the first steel plate (15a);
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 the 3rd steel plate (15c) the spacing installation that completes lower girder steel (11) in the two ends of lower girder steel (13).
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 old building is fixed the second steel plate (15b) by rear anchoring method on reinforced concrete girder;
(C2) steel column is welded on the second steel plate (15b);
(C3) the second rubber pad (14b) is placed on steel column top;
(C4) set up on the second rubber pad (14b) at the two ends of upper girder steel (11);
(C5) upper girder steel (11) fixedly completes the installation of upper girder steel (11) with steel column top 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 steel column the spacing installation that completes lower girder steel (13) in the two ends of lower girder steel (13).
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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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106223645A (en) * | 2016-07-30 | 2016-12-14 | 浙江天诚中央空调工程有限公司 | Air conditioner base-isolated equipment machine room and construction method thereof and regulation system |
| CN114737814A (en) * | 2022-05-22 | 2022-07-12 | 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 |
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| CN114737814A (en) * | 2022-05-22 | 2022-07-12 | 北京工业大学 | Vibration reduction power transmission tower system with composite vibration isolation base and cantilever tuning beam |
| 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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