CN207958967U - A kind of fixed sealing device for bridge steel box girder circle duct - Google Patents
A kind of fixed sealing device for bridge steel box girder circle duct Download PDFInfo
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- CN207958967U CN207958967U CN201721793303.9U CN201721793303U CN207958967U CN 207958967 U CN207958967 U CN 207958967U CN 201721793303 U CN201721793303 U CN 201721793303U CN 207958967 U CN207958967 U CN 207958967U
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Abstract
The utility model discloses a kind of fixed sealing devices for bridge steel box girder circle duct, it is characterized in that the fixed sealing device includes annular brace steelframe, the annular brace steelframe is set in outside cable, and the annular brace steelframe includes inside mounting groove and outside installation position limiting structure；Rubber seal is arranged in the inside mounting groove of annular brace steelframe, for realizing the radially inner side sealing between annular brace steelframe and cable；L-type steel pads, and the L-type steel liner setting is installed on the outside of annular brace steelframe in position limiting structure, and outside mounting groove is collectively formed with installation position limiting structure on the outside of the annular brace steelframe；Rubber pad, the rubber pad are mounted in the mounting groove of outside, realize the radial outside sealing between annular brace steelframe and round duct.The fixed sealing device of the utility model, which can either be fixed in pipeline, to be played the role of closed, is also had enough rigidity and is provided vertical supporting and fixation for pipeline or cable, and is easy for installation.
Description
Technical field
The utility model is the science of bridge building new technical field involved by civil engineering, and in particular to one kind of bridge is used for
The fixed sealing device and its encapsulating method in bridge steel box girder circle duct.
Background technology
As Bridges in Our Country technology high-speed develops, steel box-girder is increasingly used in long-span bridge girder construction.For
Maintain the drying of steel box-girder inner space, it is ensured that the durability of steel construction is generally required and carried out to steel box-girder inside chamber space
It is closed, and dehumidify to being enclosed within air therein.But often there are some pipelines or cable etc. to need from case in bridge
It passes through in beam, and is pierced by from the opening of the channel of box beam end set, and gap will become external tide between duct and pipeline or cable
Humid air enters the channel in beam.
It is general using in opening of the channel filled and process material or rubber at present to the closed problem inside such round duct
Material is handled.
The mode of filling-foam material, since expanded material itself is there are a large amount of gaps, water-proof sealing is poor,
It is also proved in this bridge maintenance in recent years.
The mode of filled rubber material, material and service life can generally be met the requirements, but due to needing closed duct
The compatible degree of internal pore and rubber material is poor, therefore, it is also difficult to realize effectively closed.
Above two air-tight manner all cannot be satisfied the requirement of bridge.
Utility model content
The purpose of this utility model is to provide a kind of fixed sealing device for bridge steel box girder circle duct, is easy to
Installation and removal, can fixedly positioning after installation, and effectively closed circle duct and gap wherein between pipeline or cable.
In order to solve the above technical problems, the technical solution of the utility model is as follows：One kind being used for bridge steel box girder round hole
The fixed sealing device in road is equipped with round duct in steel box-girder, is provided with cable in round duct, it is characterised in that described
Fixed sealing device includes
Annular brace steelframe, the annular brace steelframe are set in outside cable, and the annular brace steelframe includes inside peace
Position limiting structure is installed in tankage and outside；
Rubber seal is arranged in the inside mounting groove of annular brace steelframe, for realizing annular brace steelframe and cable
Radially inner side sealing between rope；
L-type steel pads, and the L-type steel liner setting is installed on the outside of annular brace steelframe in position limiting structure, with the ring
Outside mounting groove is collectively formed in installation position limiting structure on the outside of shape supporting steel frame；
Rubber pad, the rubber pad are mounted in the mounting groove of outside, are realized between annular brace steelframe and round duct
Radial outside seals.
Further, between on the inside of annular brace steelframe and L-type steel pad, flexibility is pasted with structure glue in axially inner side
Geomembrane forms second waterproofing protection.
Further, the annular brace steelframe is made of two semi-circular shape supporting steel frames, described two semi-circular shape
Supporting steel frame is fixed by splice bolt, is spliced into circular ring shape supporting steel frame, and in splicing, is held out against positioned at annular brace
Rubber seal on the inside of steelframe realizes the locking of supporting steel frame inner seal.
Further, the semi-circular shape supporting steel frame includes inner peripheral surface and peripheral surface, and outside installation position limiting structure is to set
Set the semicircular ring end plate axially external in the semi-circular shape supporting steel frame peripheral surface, and the semicircular ring end plate is towards described half
The radial outside of circular ring shape supporting steel frame extends, and the outer rim of the semicircular ring end plate extends to the end face part weight with steel box-girder
It is folded.
Further, accordingly, the L-type steel liner is also made of two semicircle steel sleeves.The semicircle steel lining
Pad include semicircle anchor ring and be arranged in the inside of the semicircle anchor ring and the semi-cylindrical vertical with the semicircle anchor ring, institute
It states semi-cylindrical to match with the peripheral surface of semi-circular shape supporting steel frame, is fitted in the peripheral surface of the semi-circular shape supporting steel frame
Outside, the semicircle anchor ring then be located at semi-circular shape supporting steel frame axially inner side, to semi-circular shape supporting steel frame
Outside installation position limiting structure collectively constitutes outside mounting groove.
Further, the peripheral surface of the semi-circular shape supporting steel frame is equipped with several puller bolts, the puller bolt
L-type steel liner is acted on, the rubber pad for holding out against outside mounting groove realizes the locking of supporting steel frame outer side seal.
Further, fluid sealant is set between the circular ring shape supporting steel frame and the end face of steel box-girder.
The another object of the utility model is to provide a kind of fixed encapsulating method for bridge steel box girder circle duct,
Sealing structure is easily installed and dismantles, and can be fixedly positioning after installation, and effectively closed circle duct and wherein pipeline or cable it
Between gap.
To achieve the goals above, the technical solution of the utility model is as follows：One kind being used for bridge steel box girder circle duct
Fixed encapsulating method, it is characterised in that the encapsulating method includes the following steps：
A, two semicircle steel sleeves and two semicircles are placed in the outside of annular brace steelframe installation position limiting structure
Rubber pad, and using the annular braced frame of the geomembrane of flexible-belt fold connection and two semicircle steel sleeves, the semicircle
Steel sleeve include semicircle anchor ring and be arranged in the inside of the semicircle anchor ring and the semicolumn vertical with the semicircle anchor ring
Face, the semi-cylindrical are arranged in the outside of the peripheral surface of the semi-circular shape supporting steel frame, the semicircle anchor ring then with semicircle
The outside installation position limiting structure of annular brace steelframe collectively constitutes outside mounting groove, and semicircle rubber pad is located at the outside mounting groove
Interior, described two semicircle steel sleeve splits form L-type steels liner, and described two semicircle rubber pads are put together circular ring shape rubber
Rubber cushion；
B, two semi-circular shape supporting steel frames are sleeved on outside cable, are equipped in the inside mounting groove of semi-circular shape supporting steel frame
Two semi-circular shape supporting steel frames are spliced into an annular brace steelframe using splice bolt, spliced by rubber seal
Cheng Zhong while tightening splice bolt, holds out against the rubber seal on the inside of annular brace steelframe, realizes on the inside of supporting steel frame
Sealing locking；
C, the peripheral surface of the semi-circular shape supporting steel frame is equipped with several puller bolts, and the top of the puller bolt is pushed up
Firmly L-type steel pads, and while tightening puller bolt, the spacing between L-type steel liner and round duct inner wall becomes smaller, to hold out against
The annular rubber pad of outside mounting groove realizes the locking of supporting steel frame outer side seal；
D, between annular brace steelframe and L-type steel liner, flexible geo-membrane is pasted with structure glue in axially inner side, is formed
Second waterproofing protection；
E, it is coated with fluid sealant between annular brace steelframe 1 and the end face of steel box-girder.
The fixed sealing device of the utility model can either be fixed in pipeline play the role of it is closed, also have enough just
Degree provides vertical supporting and fixation for pipeline or cable, and easy for installation.The utility model cannot be only used for newly building bridge
On duct is closed, can also it be widely used in the closing in the duct of built bridge.
The fixed sealing device of the utility model has following technical characterstics：
1）By the fastening of inside and outside two layers of rubber ring, that realizes the duct of built-in cable is fully sealed performance；
2）The present apparatus can be supported as cable in the fixed of opening of the channel position.
3）This sealing device is bolted rear assembling structure, and not only installation is simple, and the mode being only fastened by bolts
It connect with original structure, without carrying out welding or trepanning on original structure, to original structure without any damage, can be widely used in new
In the maintenance of bridge construction beam or built bridge.
Description of the drawings
The utility model is described in more detail with specific implementation method below in conjunction with the accompanying drawings.
Fig. 1 is sealing device elevation.
Fig. 2 is sealing device cross-sectional view.
Fig. 3 is sealing device sectional view..
Fig. 4 is sealing device partial schematic diagram.
In figure：Annular brace steelframe 1；Rubber seal 2；Splice bolt 3；L-type steel liner 4；Rubber pad 5；Puller bolt
6；Flexible geo-membrane 7；Fluid sealant 8；Cable 9.
Specific implementation mode
As shown, a kind of fixed sealing device for bridge steel box girder circle duct, is equipped with circle in steel box-girder
Shape duct is provided with cable 9 in round duct, it is characterised in that the fixed sealing device includes
Annular brace steelframe 1, the annular brace steelframe 1 are set in outside cable 9, and the annular brace steelframe 1 includes interior
Position limiting structure is installed in side mounting groove and outside；
Rubber seal 2 is arranged in the inside mounting groove of annular brace steelframe 1, for realizing annular brace steelframe 1 with
Radially inner side sealing between cable 9；
L-type steel liner 4,4 setting of L-type steel liner are and described in 1 outside installation position limiting structure of annular brace steelframe
Outside mounting groove is collectively formed in 1 outside installation position limiting structure of annular brace steelframe；
Rubber pad 5, the rubber pad 5 are mounted in the mounting groove of outside, are realized between annular brace steelframe and round duct
Radial outside sealing.
Further, between on the inside of annular brace steelframe and L-type steel pad, flexibility is pasted with structure glue in axially inner side
Geomembrane 7 forms second waterproofing protection.
Further, the annular brace steelframe 1 is made of two semi-circular shape supporting steel frames, described two semi-circular shape
Supporting steel frame is fixed by splice bolt 3, is spliced into circular ring shape supporting steel frame, and in splicing, tightens splice bolt 3
Meanwhile the rubber seal 2 on the inside of annular brace steelframe is held out against, realize the locking of supporting steel frame inner seal.
Further, the semi-circular shape supporting steel frame includes inner peripheral surface and peripheral surface, and the inner peripheral surface and peripheral surface are equal
For cylindrical surface, a semi-circular inner sealed board is provided between the inner peripheral surface and peripheral surface axially inside, is set on the inside of inner peripheral surface
Inside mounting groove is set, rubber seal 2 is arranged on the inside of this in mounting groove, and it is to be arranged in the semicircle that position limiting structure is installed in outside
The axially external semicircular ring end plate of annular brace steelframe peripheral surface, and the semicircular ring end plate is towards the semi-circular shape supporting steel
The radial outside of frame extends, and the outer rim of the semicircular ring end plate extends to Chong Die with the end face part of steel box-girder.
Further, L-type steel liner 4 includes arc surface and the cylindrical surface vertical with the anchor ring.
Accordingly, the L-type steel liner 4 is also made of two semicircle steel sleeves.The semicircle steel sleeve includes half
Anchor ring and be arranged in the inside of the semicircle anchor ring and the semi-cylindrical vertical with the semicircle anchor ring, the semicolumn
Face is matched with the peripheral surface of semi-circular shape supporting steel frame, is arranged in the outside of the peripheral surface of the semi-circular shape supporting steel frame,
The semicircle anchor ring is then located at the axially inner side of semi-circular shape supporting steel frame, to be installed with the outside of semi-circular shape supporting steel frame
Position limiting structure collectively constitutes outside mounting groove.
Further, the peripheral surface of the semi-circular shape supporting steel frame is equipped with several puller bolts 6, the puller bolt
6 act on L-type steel liner 4, and the rubber pad for holding out against outside mounting groove realizes the locking of supporting steel frame outer side seal.
Further, fluid sealant 8 is set between the semicircular ring end plate and the end face of steel box-girder of the semi-circular shape supporting steel frame.
Further, the inside of the flexible geo-membrane 7 is connect with the annular inner sealed board of semi-circular shape supporting steel frame half, institute
It states the outside of flexible geo-membrane 7 and semicircle anchor ring that L-type steel pads is connect.
Specific embodiment according to the present utility model obtains a kind of fixed sealing for bridge steel box girder circle duct
Method, it is characterised in that the encapsulating method includes the following steps：
A, two semicircle steel sleeves and two semicircles are placed in the outside of annular brace steelframe installation position limiting structure
Rubber pad, and using the annular braced frame of the geomembrane of flexible-belt fold connection and two semicircle steel sleeves, the semicircle
Steel sleeve include semicircle anchor ring and be arranged in the inside of the semicircle anchor ring and the semicolumn vertical with the semicircle anchor ring
Face, the semi-cylindrical are arranged in the outside of the peripheral surface of the semi-circular shape supporting steel frame, the semicircle anchor ring then with semicircle
The outside installation position limiting structure of annular brace steelframe collectively constitutes outside mounting groove, and semicircle rubber pad is located at the outside mounting groove
Interior, described two semicircle steel sleeve splits form L-type steels liner, and described two semicircle rubber pads are put together circular ring shape rubber
Rubber cushion；
B, two semi-circular shape supporting steel frames are sleeved on outside cable, are equipped in the inside mounting groove of semi-circular shape supporting steel frame
Two semi-circular shape supporting steel frames are spliced into an annular brace steelframe using splice bolt, spliced by rubber seal
Cheng Zhong while tightening splice bolt, holds out against the rubber seal on the inside of annular brace steelframe, realizes on the inside of supporting steel frame
Sealing locking；
C, the peripheral surface of the semi-circular shape supporting steel frame is equipped with several puller bolts, and the top of the puller bolt is pushed up
Firmly L-type steel pads, and while tightening puller bolt, the spacing between L-type steel liner and round duct inner wall becomes smaller, to hold out against
The annular rubber pad of outside mounting groove realizes the locking of supporting steel frame outer side seal；
D, between annular brace steelframe and L-type steel liner, flexible geo-membrane is pasted with structure glue in axially inner side, is formed
Second waterproofing protection；
E, fluid sealant 8 is coated between annular brace steelframe 1 and the end face of steel box-girder.
The characteristics of the utility model, is as follows：
1）It is the sealing device on a kind of bridge in the round duct of built-in cable, belongs to fixed sealing, can be built-in
Cable provides local support and fixed cable.
2）Sealing device is made of common steel plate, geomembrane and rubber pad.
3）Sealing device is fixed by bolts and connects.
4）Sealing device is realized closed by inside and outside two layers of sealing ring.
6）Geomembrane is flexibly connected inside and outside two layers of sealing ring, and the gap that can either be adapted between two layers of sealing ring is big
Small variation, and can realize obturation effect.
Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill
The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also belong to
In the scope of protection of the utility model.
Claims (8)
1. a kind of fixed sealing device for bridge steel box girder circle duct is equipped with round duct in steel box-girder, round
Cable is provided in duct, it is characterised in that the fixed sealing device includes
Annular brace steelframe, the annular brace steelframe are set in outside cable, and the annular brace steelframe includes inside mounting groove
Position limiting structure is installed with outside；
Rubber seal is arranged in the inside mounting groove of annular brace steelframe, for realizing annular brace steelframe and cable it
Between radially inner side sealing；
L-type steel pads, and the L-type steel liner setting is installed on the outside of annular brace steelframe in position limiting structure, is propped up with the annular
Outside mounting groove is collectively formed in installation position limiting structure on the outside of support steelframe；
Rubber pad, the rubber pad are mounted in the mounting groove of outside, realize the radial direction between annular brace steelframe and round duct
Outer side seal.
2. a kind of fixed sealing device for bridge steel box girder circle duct as described in claim 1, which is characterized in that
Between on the inside of annular brace steelframe and L-type steel pad, flexible geo-membrane is pasted with structure glue in axially inner side, forms second
Waterproofing protection.
3. a kind of fixed sealing device for bridge steel box girder circle duct as described in claim 1, which is characterized in that
The annular brace steelframe is made of two semi-circular shape supporting steel frames, and described two semi-circular shape supporting steel frames are by splicing spiral shell
Bolt is fixed, and is spliced into circular ring shape supporting steel frame, and in splicing, holds out against the rubber seal on the inside of annular brace steelframe
Circle realizes the locking of supporting steel frame inner seal.
4. a kind of fixed sealing device for bridge steel box girder circle duct as claimed in claim 3, which is characterized in that
The semi-circular shape supporting steel frame includes inner peripheral surface and peripheral surface, and it is to be arranged in the semi-circular shape branch that position limiting structure is installed in outside
Support the axially external semicircular ring end plate of steelframe peripheral surface, and the semicircular ring end plate is towards the diameter of the semi-circular shape supporting steel frame
Extend outward, the outer rim of the semicircular ring end plate extends to Chong Die with the end face part of steel box-girder.
5. a kind of fixed sealing device for bridge steel box girder circle duct as claimed in claim 4, which is characterized in that
The L-type steel liner is also made of two semicircle steel sleeves.
6. a kind of fixed sealing device for bridge steel box girder circle duct as claimed in claim 5, which is characterized in that
It is described semicircle steel sleeve include semicircle anchor ring and be arranged the inside of the semicircle anchor ring and with the semicircle anchor ring hang down
Straight semi-cylindrical, the semi-cylindrical are matched with the peripheral surface of semi-circular shape supporting steel frame, are fitted in the semi-circular shape
The outside of the peripheral surface of supporting steel frame, the semicircle anchor ring are then located at the axially inner side of semi-circular shape supporting steel frame, thus with half
The outside installation position limiting structure of circular ring shape supporting steel frame collectively constitutes outside mounting groove.
7. a kind of fixed sealing device for bridge steel box girder circle duct as claimed in claim 6, which is characterized in that
The peripheral surface of the semi-circular shape supporting steel frame is equipped with several puller bolts, and the puller bolt acts on L-type steel liner, uses
In the rubber pad for holding out against outside mounting groove, the locking of supporting steel frame outer side seal is realized.
8. a kind of fixed sealing device for bridge steel box girder circle duct as claimed in claim 3, which is characterized in that
Fluid sealant is set between the circular ring shape supporting steel frame and the end face of steel box-girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721793303.9U CN207958967U (en) | 2017-12-20 | 2017-12-20 | A kind of fixed sealing device for bridge steel box girder circle duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721793303.9U CN207958967U (en) | 2017-12-20 | 2017-12-20 | A kind of fixed sealing device for bridge steel box girder circle duct |
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| Publication Number | Publication Date |
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| CN207958967U true CN207958967U (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721793303.9U Active CN207958967U (en) | 2017-12-20 | 2017-12-20 | A kind of fixed sealing device for bridge steel box girder circle duct |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118608A (en) * | 2017-12-20 | 2018-06-05 | 上海市政工程设计研究总院（集团）有限公司 | A kind of fixed sealing device and its encapsulating method for bridge steel box girder circle duct |
-
2017
- 2017-12-20 CN CN201721793303.9U patent/CN207958967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118608A (en) * | 2017-12-20 | 2018-06-05 | 上海市政工程设计研究总院（集团）有限公司 | A kind of fixed sealing device and its encapsulating method for bridge steel box girder circle duct |
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