CN203626075U - Hydropower station plant vibration reduction structure - Google Patents
Hydropower station plant vibration reduction structure Download PDFInfo
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- CN203626075U CN203626075U CN201320688864.8U CN201320688864U CN203626075U CN 203626075 U CN203626075 U CN 203626075U CN 201320688864 U CN201320688864 U CN 201320688864U CN 203626075 U CN203626075 U CN 203626075U
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- hydropower station
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Abstract
The utility model relates to a hydropower station plant vibration reduction structure. The hydropower station plant vibration reduction structure is simple in structure, safe, reliable and low in cost, the supporting conditions between second phase thick plates and an upstream wall of a hydropower station plant and between the second phase thick plates and a downstream wall of the hydropower station plant are optimized, the situation that freedom degree release is large under original simply support supporting conditions is changed, and the vibration reduction purpose is achieved. According to the technical scheme, the hydropower station plant vibration reduction structure is provided with a first phase wall and the second phase thick plates which support the wall, and is characterized in that grooves are reserved in the middle of the first phase wall, and the second phase thick plates are fixed in the grooves in an embedded mode, supporting platform notches are reserved in the top of the first phase wall, the supporting platform notches support the second phase thick plates, and the first phase wall and the second phase thick plates on the top of the first phase wall are connected through steel ties pre-buried in the first phase wall. The hydropower station plant vibration reduction structure is suitable for building of the hydropower station plant.
Description
Technical field
The utility model relates to a kind of powerhouse of hydropower station vibration-proof structure.Be applicable to powerhouse of hydropower station building.
Background technology
Powerhouse of hydropower station unit vibration problem can cause flutter failure and the noise pollution of mill construction, is having a strong impact on safety and the normal operation of powerhouse of hydropower station structure.In Power Plant Design, can be to carrying out ACTIVE CONTROL by unit machinery and factory building machine pier, fan housing, the isostructural amplitude of floor that electromagnetism aspect causes.But due to hydraulic vibration frequency distribution scope more extensively and more difficult Accurate Prediction, thereby in Practical Project again often with the second stage of structure in the natural frequency of generator floor, turbine floor and mesosphere board girder construction can not stagger completely and there is the possibility of the resonance of producing, therefore in hydraulic vibration situation, how effectively to carry out factory building second phase structure particularly the vibration damping of the second stage of slab and girder just become extremely important.
At present, in powerhouse of hydropower station work progress, for accelerating construction progress, plate-girder concrete structure is generally taked the form of structure of freely-supported on upstream and downstream wall (post) bracket, is arranged in the second stage of pouring construction.Freely-supported restraint release vertical displacement and the degree of freedom such as bending of the second stage of structure boundary, comparatively unfavorable to the antivibration of the second stage of structure.For guaranteeing the long-term security of operation in power station, must take vibration damping treatment measures effectively and reasonably for slab and girder border.
Summary of the invention
The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, a kind of simple in structure, safe and reliable, lower-cost powerhouse of hydropower station vibration-proof structure is provided, optimize powerhouse of hydropower station second phase slab and upstream and downstream wall place supporting condition, change degree of freedom under former freely-supported supporting condition and discharge larger situation, to reach vibration damping object.
The technical scheme that the utility model adopts is: a kind of powerhouse of hydropower station vibration-proof structure, and there is first phase body of wall and be supported in the second stage of slab on body of wall, it is characterized in that: groove is reserved in described first phase body of wall middle part the second stage of slab described in build-in in this groove; The reserved entablature that supports in described first phase body of wall top, supports on entablature and supports described the second stage of slab, and the steel tie between first phase body of wall and its top second phase slab in being embedded in advance first phase body of wall is connected.
The passage that vibrates of building communicating with groove is reserved in described groove top.
Described groove is square groove, described in to build the passage that vibrates be that outer oblique 45 degree in groove top form.
Described depth of groove is all identical with the second stage of slab gauge with width.
In described first phase body of wall, steel bar stress is met the bending of groove position and stiffener is set, and the steel bar stress that the access sites of vibrating is built in groove top exposes.
The beneficial effects of the utility model are: the utility model is simple in structure, easy construction, safe and reliable, thereby the restraint performance that has increased structure improves the resistance to vibration of the second stage of structure, simultaneously by one, the second stage of close structure is connected, shared and absorbing vibrational energy, play effectiveness in vibration suppression.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment.
Fig. 2 is the structural representation of first phase body of wall in the present embodiment.
The specific embodiment
As shown in Figure 1 and Figure 2, the present embodiment is a kind of powerhouse of hydropower station vibration-proof structure, and powerhouse of hydropower station is by the first phase body of wall 1 of first constructing, and the second stage of slab of construction in later period or plate-girder composition, and this example is take the second stage of slab 2 as example, and the second stage of slab 2 is supported on first phase body of wall 1.
In the present embodiment, reserve the degree of depth square groove 101 identical with the second stage of thick plate structure gauge with width at first phase body of wall 1 intermediate supports position.For guaranteeing the density of building of groove position second stage concrete, above groove 101 reserved outer oblique 45 spend build the path 10 2 that vibrates, build second stage concrete vibration compacting in groove by this passage.The interior steel bar stress 3 of first phase body of wall 1 is met groove position and is bent and arrange stiffener, and the body of wall steel bar stress exposure at path 10 2 positions of vibrating is built to the second stage of casting area, to increase the intensity in this position later stage in groove 101 tops.After second phase structure reinforcing bars 4 colligations, build the second stage of structural concrete vibration compacting, form the second stage of slab 2.The reserved entablature 103 that supports in first phase body of wall 1 top braces position, and inside entablature the steel tie 5 of the pre-buried connection one of vertical surface, the second stage of structure, bar diameter is not less than 25mm, and length is 2 times of anchorage length of steel bars, and respectively stretch into one, anchorage length of second stage concrete structure.After the second stage of structure reinforcing bars 4 colligations at top complete, build the second stage of structural concrete vibration compacting.In the present embodiment, before the second stage of structural concrete is built, reserved groove and entablature position are carried out to dabbing cleaning, to strengthen concrete binding.
The principle of the present embodiment is as follows: first phase body of wall 1 intermediate supports position, adopt reserved groove 101 formal layouts of body of wall, the second stage of slab 2 is built in body of wall groove, form embedding effec, greatly improve the second stage of structure boundary vertical displacement and bending aspect constraint, thereby the restraint performance that improves border strengthening one, connection and the resistance to shock of the second stage of structure; First phase body of wall 1 top braces position adopts the reserved entablature 103 that supports, owing to cannot forming above-mentioned embedding effec, therefore adopt at entablature position reserved connect one, between the second stage of structure steel tie 5 forms strengthen the second stage of structure boudary portion to vertical displacement and bending aspect constraint, to reach similar effect.
Claims (5)
1. a powerhouse of hydropower station vibration-proof structure, has first phase body of wall (1) and is supported in the second stage of slab (2) on body of wall, it is characterized in that: groove (101) is reserved in described first phase body of wall (1) middle part, the second stage of slab (2) described in build-in in this groove; The reserved entablature (103) that supports in described first phase body of wall (1) top, support the upper described the second stage of slab (2) that supports of entablature (103), the steel tie (5) between first phase body of wall (1) and its top second phase slab (2) in being embedded in advance first phase body of wall (1) is connected.
2. powerhouse of hydropower station vibration-proof structure according to claim 1, is characterized in that: described groove (101) top is reserved communicate with groove build the passage that vibrates (102).
3. powerhouse of hydropower station vibration-proof structure according to claim 2, is characterized in that: described groove (101) is square groove, described in build the passage that vibrates (102) and form for outer oblique 45 degree in groove (101) top.
4. according to the powerhouse of hydropower station vibration-proof structure described in claim 1 ~ 3 any one, it is characterized in that: described groove (101) degree of depth is all identical with the second stage of slab (2) gauge with width.
5. powerhouse of hydropower station vibration-proof structure according to claim 1, it is characterized in that: the interior steel bar stress of described first phase body of wall (1) (3) is met groove (101) position bending and stiffener is set, the steel bar stress (3) that the passage that vibrates (102) position is built in groove top exposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688864.8U CN203626075U (en) | 2013-11-05 | 2013-11-05 | Hydropower station plant vibration reduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688864.8U CN203626075U (en) | 2013-11-05 | 2013-11-05 | Hydropower station plant vibration reduction structure |
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| CN203626075U true CN203626075U (en) | 2014-06-04 |
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| CN201320688864.8U Expired - Lifetime CN203626075U (en) | 2013-11-05 | 2013-11-05 | Hydropower station plant vibration reduction structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685473A (en) * | 2019-07-29 | 2020-01-14 | 中国核电工程有限公司 | Vibration reduction structure of factory building |
-
2013
- 2013-11-05 CN CN201320688864.8U patent/CN203626075U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685473A (en) * | 2019-07-29 | 2020-01-14 | 中国核电工程有限公司 | Vibration reduction structure of factory building |
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