CN207130634U - A kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate - Google Patents
A kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate Download PDFInfo
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- CN207130634U CN207130634U CN201721151835.2U CN201721151835U CN207130634U CN 207130634 U CN207130634 U CN 207130634U CN 201721151835 U CN201721151835 U CN 201721151835U CN 207130634 U CN207130634 U CN 207130634U
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Abstract
The utility model discloses a kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate, including existing T beams（1）With newly-built T beams（2）；Wherein：Also include affixing steel plate（6）And reinforcing pull rod（7）；Described affixing steel plate（6）By being implanted in existing T beams（1）In bolt reinforcing bar（4）It is fixedly mounted on existing T beams（1）On, and in affixing steel plate（6）With existing T beams（1）Between be perfused with a Rotating fields glue（5）；In newly-built T beams（2）In be provided with pre-embedded steel slab（3）；Described reinforcing pull rod（7）Both ends respectively with pre-embedded steel slab（3）, affixing steel plate（6）It is fixedly connected.Attachment structure of the present utility model can reduce the damage to caused by existing T beams beam rib concentration of local bar planting, while the intensity of lateral connection between existing T beams and newly-built T beams is ensured, the damage width of existing T beams will be reduced, ensure the integrality of existing T beams and the completeness of structure to greatest extent.
Description
Technical field
It the utility model is related to reorganization and expansion Highway Assembling Type bridge reutilization technology field, and in particular to a kind of to use steel
Plate and reinforcing pull rod connect the structure of existing T beams and newly-built T beams.
Background technology
Social economy's sustained and rapid development in recent years, traffic volume of highway increase sharply, and the part highway built in early days is
Up to or over design capacity.As wide deep regional and compared with Shen for early building is big, wide Buddhist, Shanghai and Nanjing, the Beijing-Tianjin pool and Beijing-Hongkong
The highways such as Australia, it is Four-Lane Road highway mostly, with raising and the road network of being continuously increased of the volume of traffic, function and status
The change of function, there is traffic congestion phenomenon, had a strong impact on service level and the traffic safety of road.With Shen in 2002
Big Expressway Extension Project goes into operation, and highway in China cause has welcome a brand-new epoch, i.e., by large-scale newly-built
Highway be changed into reorganization and expansion with it is newly-built and deposit, two kinds build the situation laid equal stress on.Highway reconstruction and expansion, following more than ten years highway will be turned into
The new focus of building cause.
The highway of reorganization and expansion is needed substantially to belong to national communication backbone, status protrudes.Bridge thereon, have very big by one
Part is two class bridges, and even a kind of bridge, bridge integral working is good, in elastic state, the rigidity of structure,
Bearing capacity meets-I grade of load standard requirement of highway, and every Testing index meets code requirement.The upper structure structure of these bridges
Based on assembled beam, as long as one of the structure type of T beams as assembled beam, quantity is also considerable.
According to《Highway bridge and culvert designs general specification》（JTG D60-2015）, Bridge Design should be according to " safe, durable, suitable
With, it is environmentally friendly, economical and attractive in appearance " principle.Do not grow, one kind that bridge is in good condition, two class bridges, meeting for Years Of Service
In the case of existing load requirement, existing highway bridge is utilized, it is possible to reduce the quantities of newly-built beam body, investment reduction, raising construction
Speed, beams of concrete is avoided to discard pollution on the environment.
In the spelling width bridge that superstructure is T beams, the connection of existing T beams and newly-built T beams, the connected mode used at present
Connected for cast-in-place wet seam, the bar planting on existing T beams beam rib.The wet joint gap of T beams is generally 20cm, and height is about the complete of beam rib
For height, it is necessary to which it is the placing of reinforcements of 10~15cm two to be implanted into spacing, drilling hole amount tens easily, bar planting is intensive, and existing T beams beam rib is broken
It is bad larger, or even the structure safety of existing T beams can be influenceed.If Chinese Patent Application No. is 201520175525.9 to disclose one kind
Widen the new construction of reinforcing, including existing bridge on existing bridge, existing bridge includes existing bridge pier and is supported on
Existing bridge main beam, the both sides of existing bridge pier are respectively equipped with newly-built left side bridge pier and right side bridge pier, respectively set on left and right sides bridge pier
The prefabricated longeron of left and right sides is equipped with, the across footpath of prefabricated longeron and existing bridge main beam is isometric, and the right side edge of a wing of the prefabricated longeron in left side is set
Embedded bar I is equipped with, the left side edge of a wing of the prefabricated longeron in right side is provided with embedded bar II, the left and right sides flange plate of existing bridge main beam
The implantation reinforcing bar I that respectively sets, implantation reinforcing bar II respectively with embedded bar I, embedded bar II electric welding connections, existing girder and left side
Prefabricated longeron, the prefabricated longeron top surface in right side are each provided with pouring the concrete pavement layer of coagulation forming.
Utility model content
The purpose of this utility model is to spell wide method to existing T beams beam rib for existing existing T beams and newly-built T beams
A kind of the problem of local damage is larger, there is provided structure that existing T beams and newly-built T beams are connected using steel plate and reinforcing pull rod.This reality
It is small, simple in construction to the damage of existing T beams with new attachment structure, it is reasonable in design, securely and reliably；Will using steel plate and reinforcing pull rod
Existing T beams and newly-built T beams are linked to be entirety, will be right while the intensity of lateral connection between existing T beams and newly-built T beams is ensured
The damage of existing T beams significantly reduces, and ensures the integrality of existing T beams to greatest extent；The work of steel planting can be greatly decreased
Amount, shorten the construction period；1cm spacing is set between existing T beams and newly-built T beams, can be avoided between former bridge and spelling width bridge because heavy
Coupling part caused by drop difference is ftractureed, and improves the durability and security for spelling wide axle casing, one is provided for reorganization and expansion bridge
The new spelling width mode of kind, spell wide-range in old bridge and have great importance.
To achieve these goals, the utility model employs following technical scheme：
A kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate, including it is existing T beams, newly-built T beams, viscous
Sticking steel plate and reinforcing pull rod；Described affixing steel plate is fixedly mounted on existing T beams by the bolt reinforcing bar being implanted in existing T beams
On, and a Rotating fields glue is perfused between affixing steel plate and existing T beams；Pre-embedded steel slab is provided with newly-built T beams；Institute
The both ends for the reinforcing pull rod stated are fixedly connected with pre-embedded steel slab, affixing steel plate respectively.
In the utility model, the set location of affixing steel plate and reinforcing pull rod between existing T beams and newly-built T beams, set
Spacing is identical with T beam concrete diaphragms position, spacing, and existing T beams are connected integral with newly-built T beams after guarantee spelling is wide.Paste
The sticking veneer of steel plate and existing T beams should be handled conscientiously；I.e. existing T beams sticking veneer should carry out dead-end fracture, polishing or dabbing,
Drying process etc.；The face that affixing steel plate is mutually pasted with existing T beams need to be derusted, be polished, drying process etc..On affixing steel plate
The position that hole position and bolt reinforcing bar are implanted into existing T beams will be corresponding to, it is desirable to affixing steel plate is debugged before bolt reinforcing bar is tightened and hung, is protected
Card bolt reinforcing bar fits like a glove with affixing steel plate position, ensures the accuracy of affixing steel plate position.Pre-embedded steel slab in newly-built T beams
Size and should be not small according to the active force between existing T beams and newly-built T beams with the quantity of embedded bar of pre-embedded steel slab welding
Determined in the active force of its adjacent concrete diaphragm plate.Surface should be carried out in the utility model to reinforcing pull rod and affixing steel plate to prevent
Corruption processing.
As further explanation of the present utility model, 1cm gaps are set between described newly-built T beams and existing T beams.
As further explanation of the present utility model, described reinforcing pull rod uses I shaped steel, both ends using two angle steel with
I shaped steel is connected by bolt assembly intensity, and the angle steel at reinforcing pull rod both ends welds together with affixing steel plate, pre-embedded steel slab respectively.
The interconnection of reinforcing pull rod both ends is located at affixing steel plate and pre-embedded steel slab at same vertical section.
As further explanation of the present utility model, described bolt reinforcing bar one end is implanted into existing T beams, and the other end passes through
Affixing steel plate, after steel plate to be pasted is firmly connected with existing T beams using structure glue, tightened using nut.Described bolt
Steel bar arrangement affixing steel plate surrounding, be specially：Distance apart from affixing steel plate edge is 10cm, between being waited between bolt reinforcing bar
Away from arrangement, spacing is 80~100cm.
As further explanation of the present utility model, the thickness of described structure glue is 3mm.In affixing steel plate and both
There is the bolt reinforcing bar between T beams to be provided with the annular gasket consistent with structure glue thickness.Annular gasket, Ke Yigeng are set
The thickness of good control structure glue.
As further explanation of the present utility model, described affixing steel plate is monoblock steel plate, and the thickness of affixing steel plate is 6
~8mm, the height of affixing steel plate are identical with the web height of existing T beams.The width of affixing steel plate is according to existing T beams and newly-built T
Active force between beam determines not less than the active force of its adjacent concrete diaphragm plate, and ensures affixing steel plate and structure glue
Do not depart from.The construction procedure of affixing steel plate is installed：First drilled in the surrounding of affixing steel plate, bore position away from steel plate side 10cm,
80~100cm of the spacing of wells；The correspondence position drilling that existing T beams drill in affixing steel plate, pours into anchoring adhesive, is implanted into bolting steel
Muscle；After adding annular gasket in bolt reinforcing bar, affixing steel plate is penetrated in spiral reinforcement by corresponding hole position；Affixing steel plate with
Structure glue is poured between existing T beams.
In the utility model, bolt reinforcing bar, affixing steel plate etc. are implanted on existing T beams should be according to《Highway bridge is reinforced
Design specification》（JTG/T J22-2008）With《Highway bridge reinforcement construction technology specification》（JTG/T J23-2008）Related rule
It is fixed to perform.
Compared with prior art, the beneficial effect that the utility model possesses：
1. the quantity of steel planting can be greatly decreased in attachment structure of the present utility model, shorten the construction period, accelerate construction
Progress.
2. attachment structure of the present utility model can reduce the damage to caused by existing T beams beam rib concentration of local bar planting, protecting
While demonstrate,proving the intensity of lateral connection between existing T beams and newly-built T beams, the damage width of existing T beams will be reduced, to greatest extent
Ensure the integrality of existing T beams and the completeness of structure.
3. 1cm gaps are set in attachment structure of the present utility model between existing T beams and newly-built T beams, can avoid former bridge with
Spell between wide bridge that coupling part is ftractureed caused by differential settlement, improve the durability and security for spelling wide axle casing.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment end truncation surface of the utility model one.
Fig. 2 is the structural representation of the embodiment span centre truncation surface of the utility model one.
Reference：The existing T beams of 1-, the newly-built T beams of 2-, 3- pre-embedded steel slabs, 4- bolt reinforcing bars, 5- structure glues, 6- glue
Sticking steel plate, 7- reinforcing pull rods.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings, the scope of protection of the utility model does not limit to following implementation
The specific restriction of example.
Embodiment 1：
As shown in Figure 1 and Figure 2, a kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate, including it is existing
T beams 1, newly-built T beams 2, affixing steel plate 6 and reinforcing pull rod 7；Described affixing steel plate 6 passes through the bolting steel that is implanted in existing T beams 1
Muscle 4 is fixedly mounted on existing T beams 1, and a Rotating fields glue 5 is perfused between affixing steel plate 6 and existing T beams 1；
Pre-embedded steel slab 3 is provided with newly-built T beams 2；The both ends of described reinforcing pull rod 7 are fixedly connected with pre-embedded steel slab 3, affixing steel plate 6 respectively.
1cm gaps are set between described newly-built T beams 2 and existing T beams 1.
Described reinforcing pull rod 7 uses I shaped steel, and both ends are connected using two angle steel with I shaped steel by bolt assembly intensity,
The angle steel at the both ends of reinforcing pull rod 7 welds together with affixing steel plate 6, pre-embedded steel slab 3 respectively.The both ends interconnection of reinforcing pull rod 7 is located at
Affixing steel plate and pre-embedded steel slab at same vertical section.
Described one end of bolt reinforcing bar 4 is implanted into existing T beams 1, and the other end pass through affixing steel plate 6, steel plate 6 to be pasted and both
After there are T beams 1 using structure glue 5 firmly connection, tightened using nut.Described bolt reinforcing bar 4 is arranged in affixing steel plate 6
Surrounding, it is specially：Distance apart from the edge of affixing steel plate 6 is 10cm, is equally spaced between bolt reinforcing bar 4, spacing 80cm.
The thickness of described structure glue 5 is 3mm.Set on bolt reinforcing bar 4 between affixing steel plate 6 and existing T beams 1
There is the annular gasket consistent with the thickness of structure glue 5.
Described affixing steel plate 6 is monoblock steel plate, and the thickness of affixing steel plate 6 is 8mm, the height of affixing steel plate 6 and existing T
The web height of beam 1 is identical.
Embodiment 2：
The present embodiment differs only in embodiment 1：Arrangement spacing between bolt reinforcing bar 4 is 90cm.Affixing steel plate
Thickness be 7mm.
Embodiment 3：
The present embodiment differs only in embodiment 1：Arrangement spacing between bolt reinforcing bar 4 is 100cm.Affixing steel plate
Thickness be 6mm.
Claims (8)
1. a kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate, including existing T beams（1）With newly-built T beams
（2）；It is characterized in that：Also include affixing steel plate（6）And reinforcing pull rod（7）；Described affixing steel plate（6）By being implanted in existing T
Beam（1）In bolt reinforcing bar（4）It is fixedly mounted on existing T beams（1）On, and in affixing steel plate（6）With existing T beams（1）Between
It is perfused with a Rotating fields glue（5）；In newly-built T beams（2）In be provided with pre-embedded steel slab（3）；Described reinforcing pull rod（7）Both ends point
Not and pre-embedded steel slab（3）, affixing steel plate（6）It is fixedly connected.
2. the structure according to claim 1 for being connected existing T beams and newly-built T beams with reinforcing pull rod using steel plate, its feature are existed
In：Described newly-built T beams（2）With existing T beams（1）Between 1cm gaps are set.
3. the structure according to claim 1 for being connected existing T beams and newly-built T beams with reinforcing pull rod using steel plate, its feature are existed
In：Described reinforcing pull rod（7）Using I shaped steel, both ends are connected using two angle steel with I shaped steel by bolt assembly intensity, steel
Pull bar（7）The angle steel at both ends respectively with affixing steel plate（6）, pre-embedded steel slab（3）Weld together.
4. the structure according to claim 1 for being connected existing T beams and newly-built T beams with reinforcing pull rod using steel plate, its feature are existed
In：Described bolt reinforcing bar（4）One end is implanted into existing T beams（1）In, the other end passes through affixing steel plate（6）, steel plate to be pasted（6）
With existing T beams（1）Using structure glue（5）Firmly after connection, tightened using nut.
5. the structure according to claim 4 for being connected existing T beams and newly-built T beams with reinforcing pull rod using steel plate, its feature are existed
In：Described bolt reinforcing bar（4）It is arranged in affixing steel plate（6）Surrounding, be specially：Apart from affixing steel plate（6）The distance at edge
For 10cm, bolt reinforcing bar（4）Between be equally spaced, spacing is 80~100cm.
6. the structure according to claim 1 for being connected existing T beams and newly-built T beams with reinforcing pull rod using steel plate, its feature are existed
In：Described structure glue（5）Thickness be 3mm.
7. the structure according to claim 6 for being connected existing T beams and newly-built T beams with reinforcing pull rod using steel plate, its feature are existed
In：In affixing steel plate（6）With existing T beams（1）Between bolt reinforcing bar（4）It is provided with and structure glue（5）Thickness is consistent
Annular gasket.
8. the structure according to claim 1 for being connected existing T beams and newly-built T beams with reinforcing pull rod using steel plate, its feature are existed
In：Described affixing steel plate（6）For monoblock steel plate, affixing steel plate（6）Thickness be 6~8mm, affixing steel plate（6）Height with
Existing T beams（1）Web height it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721151835.2U CN207130634U (en) | 2017-09-10 | 2017-09-10 | A kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721151835.2U CN207130634U (en) | 2017-09-10 | 2017-09-10 | A kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207130634U true CN207130634U (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721151835.2U Expired - Fee Related CN207130634U (en) | 2017-09-10 | 2017-09-10 | A kind of structure for connecting existing T beams and newly-built T beams with reinforcing pull rod using steel plate |
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| Country | Link |
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| CN (1) | CN207130634U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024320A (en) * | 2018-09-21 | 2018-12-18 | 湖北省交通规划设计院股份有限公司 | A kind of bridge meeting new and old bridge differential settlement spells wide construction and construction method |
| CN109024319A (en) * | 2018-09-21 | 2018-12-18 | 湖北省交通规划设计院股份有限公司 | A kind of the low-pylon cable-stayed bridge ruggedized construction and construction method of double width continuous rigid frame bridge |
| CN111395145A (en) * | 2020-03-24 | 2020-07-10 | 山东省交通规划设计院有限公司 | Novel prefabricated T-beam structure convenient for later-stage widening and transformation and widening method thereof |
| CN112281663A (en) * | 2020-10-21 | 2021-01-29 | 广东精特建设工程有限公司 | Construction method for widening connection of upper structures of new and old bridges |
-
2017
- 2017-09-10 CN CN201721151835.2U patent/CN207130634U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024320A (en) * | 2018-09-21 | 2018-12-18 | 湖北省交通规划设计院股份有限公司 | A kind of bridge meeting new and old bridge differential settlement spells wide construction and construction method |
| CN109024319A (en) * | 2018-09-21 | 2018-12-18 | 湖北省交通规划设计院股份有限公司 | A kind of the low-pylon cable-stayed bridge ruggedized construction and construction method of double width continuous rigid frame bridge |
| CN109024320B (en) * | 2018-09-21 | 2023-11-24 | 湖北省交通规划设计院股份有限公司 | Bridge width splicing structure meeting settlement difference of new bridge and old bridge and construction method |
| CN109024319B (en) * | 2018-09-21 | 2023-12-15 | 湖北省交通规划设计院股份有限公司 | Low-tower cable-stayed bridge reinforcing structure of double-amplitude continuous rigid frame bridge and construction method |
| CN111395145A (en) * | 2020-03-24 | 2020-07-10 | 山东省交通规划设计院有限公司 | Novel prefabricated T-beam structure convenient for later-stage widening and transformation and widening method thereof |
| CN112281663A (en) * | 2020-10-21 | 2021-01-29 | 广东精特建设工程有限公司 | Construction method for widening connection of upper structures of new and old bridges |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20180910 |