CN207512606U - Packaged type bridges half grouting connecting-type sleeve of large scale high intensity - Google Patents
Packaged type bridges half grouting connecting-type sleeve of large scale high intensity Download PDFInfo
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- CN207512606U CN207512606U CN201720513673.6U CN201720513673U CN207512606U CN 207512606 U CN207512606 U CN 207512606U CN 201720513673 U CN201720513673 U CN 201720513673U CN 207512606 U CN207512606 U CN 207512606U
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- stepped hole
- reinforcing bar
- sleeve body
- sleeve
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Abstract
The utility model discloses the utility model to provide half grouting connecting-type sleeve of packaged type bridges large scale high intensity, and including sleeve body, in a tubular form, the endoporus of sleeve body is the stepped hole for penetrating through both ends to sleeve body.One end of sleeve body is provided with the prefabricated installation end of removable connector, and the other end is on-site consolidation end；Assembled reinforcing bar is equipped in stepped hole, stepped hole is inserted into one end of assembled reinforcing bar from on-site consolidation end.Prefabricated installation end is equipped with installation reinforcing bar, and the one end for installing reinforcing bar is removably connect with removable connector.The side wall of sleeve body is equipped with slurry pipe, and slurry pipe is connected with stepped hole, and nationality is by slurry pipe filling paste in stepped hole.Control of the utility model by special tectonic sieving and to material performance index, ensure that being reliably connected for large-size reinforcement bar, meets and ensures that structure meets the force request of static load and dynamic load under current specifications while I grades of joint mechanical property requirements.
Description
Technical field
The utility model is related to packaged type bridges building technology fields, more particularly to packaged type bridges large scale high intensity
Half grouting connecting-type sleeve.
Background technology
Concrete bridge construction technology development experience cast-in-place concrete construction technology and precast assembly construction technology two
Stage, traditional cast-in-place concrete construction technology need scene to set up a large amount of stents and template, assembling reinforcement, and noise is big, to surrounding
Environment influences greatly, and dangerous high and efficiency is low.
Prefabricated bridge technology gradually grows up after World War II, and essence is exactly in bridge construction
The work of formwork erection, assembling reinforcement and casting concrete etc. is needed to go to pre-fabricated factory scene, traditional infrastructure-pier-top is tied
The sequence construction process of structure becomes parallel process, i.e. girder, bent cap, bridge pier and abutment etc. can complete it in foundation engineering
Before begin to carry out.In this way, all kinds of prefabricated components be divided into after several segments allow to using relatively lightweight transport and
Spanning equipment is constructed, and is accelerated construction progress by reasonable arrangement Precast Concrete Segmental Bridges process.
At present, the precast assembly of bridge substructure is still in the starting stage at home, and available connection mode is main
There are wet joint, spigot-and-socket, insertion slot type, prestressing force connection, bellows connection to be connected with grout sleeve, wherein grout sleeve connects
It is proved to be a kind of more efficient, reliable connection mode.But it is different from the grout sleeve that field is built in more mature traditional room
Connection, bridge with grout sleeve faces load, and especially dynamic load is big greatly, and size is big to wait challenge, therefore each component, grouting to sleeve
The construction and performance of material etc. propose higher requirement.
Utility model content
In view of the drawbacks described above of the prior art, the utility model provides packaged type bridges large scale high intensity half and is in the milk
Connecting-type sleeve, the first purpose of realization is can to solve the prior art to obtain defect, by special tectonic sieving and to material
The control of performance indicator ensure that being reliably connected for large-size reinforcement bar, ensure knot while meeting I grades of joint mechanical property requirements
Structure meets the force request of static load and dynamic load under current specifications.
To achieve the above object, the utility model provides half grouting connection jacket of packaged type bridges large scale high intensity
Cylinder, including sleeve body.
Wherein, in a tubular form, the endoporus of the sleeve body is the stepped hole for penetrating through both ends to the sleeve body.
One end of the sleeve body is provided with the prefabricated installation end of removable connector, and the other end is on-site consolidation end；
Assembled reinforcing bar is equipped in the stepped hole, the stepped hole is inserted into one end of the assembly reinforcing bar from the on-site consolidation end.
The prefabricated installation end is equipped with installation reinforcing bar, and described one end for installing reinforcing bar is with the removable connector with removable
The mode of unloading connects.
The side wall of the sleeve body is equipped with slurry pipe, and the slurry pipe is connected with the stepped hole, in the stepped hole
Nationality is by the slurry pipe filling paste.
Preferably, the removable connector is bolt, and the internal thread hole of the bolt and the stepped hole are coaxial.
Preferably, the slurry pipe is equipped with dismountable stop grouting plug.
Preferably, the slurry pipe that the sleeve body is set on the side wall of lower end is grout outlet, for discharging
The extra slurry；The slurry pipe that the sleeve body is set on the side wall of upper end is madjack pipe, for institute
State the filling slurry in stepped hole.
Preferably, it is equipped with sealing ring between the on-site consolidation end and the assembled reinforcing bar.
Preferably, the assembled reinforcing bar is inserted into the length of one end of the stepped hole not less than the assembled bar diameter
Ten times.
Preferably, the slurry is high strength and no shrinting cement grout material.
The beneficial effects of the utility model：
The utility model can realize that the large-size components of the great lifeline engineering such as bridge are main during precast assembly
Want reliable, the quick connection of steel bar stress.
Control of the utility model by special tectonic sieving and to material performance index, ensure that large-size reinforcement bar
It is reliably connected, meets and ensure that structure meets the stress of static load and dynamic load under current specifications while I grades of joint mechanical property requirements
It is required that.
The utility model construction is succinct, reliable, quick and easy for installation, and precision is high, intensity is big, suitable for dynamic loads such as bridges
Greatly, the prefabrication and assembly constructionization construction for the large scale lifeline engineering that load is high, life requirement is high.
The technique effect of the design of the utility model, concrete structure and generation is made furtherly below with reference to attached drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Description of the drawings
Fig. 1 is illustrated that the structure diagram of one embodiment of the utility model.
Specific embodiment
Embodiment
The connecting-type sleeve as shown in Figure 1, packaged type bridges large scale high intensity half is in the milk, including sleeve body 1.
Wherein, in a tubular form, the endoporus of sleeve body 1 is the stepped hole for penetrating through both ends to sleeve body 1.
One end of sleeve body 1 is provided with the prefabricated installation end of removable connector 1a, and the other end is on-site consolidation end；Rank
Assembled reinforcing bar 3 is equipped in terraced hole, stepped hole is inserted into one end of assembled reinforcing bar 3 from on-site consolidation end.
Prefabricated installation end is equipped with installation reinforcing bar 3a, and one end of installation reinforcing bar 3a and removable connector 1a are removably
Connection.
The side wall of sleeve body 1 is equipped with slurry pipe 5, and slurry pipe 5 is connected with stepped hole, and nationality is filled out by slurry pipe 5 in stepped hole
Fill slurry 2.
The principle of the utility model is, the prefabricated installation end of sleeve body 1 using mechanical connection manner and reinforcing bar 3a into
Row connection, on-site consolidation end are attached using grouting connection mode and reinforcing bar 3, then inject high-strength no receipts by madjack pipe 5
Shrink mud grouting material 2, and the sleeve after grouting is sealed using sealing ring 4 and stop grouting plug 6, so as to fulfill the reliable of reinforcing bar
Connection meets the requirement of lifeline engineering prefabrication and assembly constructionization construction that the dynamic loads such as bridge are big, load is high, life requirement is high.
Wherein, sleeve body 1 is manufactured using cast steel or high-strength spheroidal graphite cast-iron, and processing and fabricating tolerance is ± 2mm, is covered
1 one end of cylinder main body (is mechanically connected) for prefabricated installation end using internal thread, and one end is on-site consolidation end (using grouting connection), under
End setting mud jacking hole, upper end setting slurry outlet, internal cavities are equipped with cylindric fin and form stepped hole.
Under normal conditions, 1 overall height size of sleeve body is between 300mm between 450mm, and internal diameter is between 30mm to 45mm
Between, outer diameter is between 80mm between 100mm, and with end clear distance not less than 20mm, which can meet directly mud jacking hole lower edge
The large-size reinforcement bar docking demand of diameter 32mm to 40mm.
Connected assembly reinforcing bar 3, installation reinforcing bar 3a using HRB400 grades and above hot-rolled reinforced bar, diameter 32mm~
Between 40mm, reinforcing bar in blanking it is ensured that it is straight, without bending and end polish.
In certain embodiments, removable connector 1a is bolt, and the internal thread hole and stepped hole of bolt are coaxial.
In certain embodiments, slurry pipe 5 is equipped with dismountable stop grouting plug 6.
After mud jacking operation is completed in sleeve body 1, processing need to be sealed to grouting mouth and grout outlet with stop grouting plug 6.
In certain embodiments, the slurry pipe 5 that sleeve body 1 is set on the side wall of lower end is grout outlet, for arranging
Go out extra slurry 2；The slurry pipe 5 that sleeve body 1 is set on the side wall of upper end is madjack pipe, for being filled out into stepped hole
Fill slurry 2.
Grout outlet, madjack pipe are mainly used for the press-in and discharge of grouting material, preferably using nonmetallic materials, and can guarantee pressure
Slurry, plasma discharge are smoothed out.
In certain embodiments, it is equipped with sealing ring 4 between on-site consolidation end and assembled reinforcing bar 3.
Sealing ring 4 is arranged between on-site consolidation end and assembled reinforcing bar 3, mainly prevents during mud jacking grouting material from scene
It is lost in gap between assembled end and assembled reinforcing bar 3, causes grouting leakiness in sleeve, influence bonds stress.
In certain embodiments, assembled reinforcing bar 3 is inserted into the length of one end of stepped hole not less than 3 diameter of assembled reinforcing bar
Ten times.
In certain embodiments, the slurry 2 is high strength and no shrinting cement grout material.
The slurry 2 of the high strength and no shrinting cement of 1 luminal perfusion of sleeve body makes sleeve body 1 and assembled reinforcing bar 3, installation
The combined system performance that reinforcing bar 3a is formed meets national current standard I grades of connections jointing requirements, and connector tensile strength is not less than mother
The practical stretch breaking strength of material.
Under normal conditions, the initial flow degree of grouting material is not less than 300mm, and 30 minutes fluidities are erected not less than 260mm
To free swelling rate between 0% to 0.5%, 1 day age compression strength is not less than 35MPa, and 28 day age compression strength is not
Less than 100MPa, chloride ion content is not more than 0.03%, and bleeding rate 0.00% construction time can be not less than 30 points after being stirred
Clock.
The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain
Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.
Claims (7)
- The connecting-type sleeve 1. packaged type bridges large scale high intensity half is in the milk, including sleeve body (1)；It is characterized in that：Institute State sleeve body (1) in a tubular form, the endoporus of the sleeve body (1) is the stepped hole for penetrating through both ends；The sleeve body (1) One end is provided with the prefabricated installation end of removable connector (1a), and the other end is on-site consolidation end；It is equipped with and spells in the stepped hole The stepped hole is inserted into steel loading muscle (3), one end of the assembly reinforcing bar (3) from the on-site consolidation end；The prefabricated installation end Equipped with installation reinforcing bar (3a), one end of the installation reinforcing bar (3a) removably connects with the removable connector (1a) It connects；The side wall of the sleeve body (1) is equipped with slurry pipe (5), and the slurry pipe (5) connects with the stepped hole, the ladder Nationality is by the slurry pipe (5) filling paste (2) in hole.
- The connecting-type sleeve 2. packaged type bridges according to claim 1 large scale high intensity half is in the milk, which is characterized in that The removable connector (1a) is bolt, and the internal thread hole of the bolt and the stepped hole are coaxial.
- The connecting-type sleeve 3. packaged type bridges according to claim 1 large scale high intensity half is in the milk, which is characterized in that The slurry pipe (5) is equipped with dismountable stop grouting plug (6).
- The connecting-type sleeve 4. packaged type bridges according to claim 3 large scale high intensity half is in the milk, which is characterized in that The sleeve body (1) slurry pipe (5) for setting on the side wall of lower end is grout outlet, for discharge it is extra described in Slurry (2)；The sleeve body (1) slurry pipe (5) for setting on the side wall of upper end is madjack pipe, for described The filling slurry (2) in stepped hole.
- The connecting-type sleeve 5. packaged type bridges according to claim 1 large scale high intensity half is in the milk, which is characterized in that Sealing ring (4) is equipped between the on-site consolidation end and the assembled reinforcing bar (3).
- The connecting-type sleeve 6. packaged type bridges according to claim 1 large scale high intensity half is in the milk, which is characterized in that The length of one end of assembly reinforcing bar (3) insertion stepped hole is not less than ten times of described assembled reinforcing bar (3) diameter.
- The connecting-type sleeve 7. packaged type bridges according to claim 1 large scale high intensity half is in the milk, which is characterized in that The slurry (2) is high strength and no shrinting cement grout material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513673.6U CN207512606U (en) | 2017-05-10 | 2017-05-10 | Packaged type bridges half grouting connecting-type sleeve of large scale high intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513673.6U CN207512606U (en) | 2017-05-10 | 2017-05-10 | Packaged type bridges half grouting connecting-type sleeve of large scale high intensity |
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| Publication Number | Publication Date |
|---|---|
| CN207512606U true CN207512606U (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720513673.6U Active CN207512606U (en) | 2017-05-10 | 2017-05-10 | Packaged type bridges half grouting connecting-type sleeve of large scale high intensity |
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| CN (1) | CN207512606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049320A (en) * | 2020-08-31 | 2020-12-08 | 上海家树建筑工程有限公司 | Precast concrete sandwich heat-insulation wall structure and construction method thereof |
-
2017
- 2017-05-10 CN CN201720513673.6U patent/CN207512606U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049320A (en) * | 2020-08-31 | 2020-12-08 | 上海家树建筑工程有限公司 | Precast concrete sandwich heat-insulation wall structure and construction method thereof |
| CN112049320B (en) * | 2020-08-31 | 2022-02-11 | 上海家树建设集团有限公司 | Precast concrete sandwich heat-insulation wall structure and construction method thereof |
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