CN202482751U - Longitudinal non-shearing-resistant type pulling resistant connecting member - Google Patents
Longitudinal non-shearing-resistant type pulling resistant connecting member Download PDFInfo
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- CN202482751U CN202482751U CN2011205180375U CN201120518037U CN202482751U CN 202482751 U CN202482751 U CN 202482751U CN 2011205180375 U CN2011205180375 U CN 2011205180375U CN 201120518037 U CN201120518037 U CN 201120518037U CN 202482751 U CN202482751 U CN 202482751U
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Abstract
The utility model relates to a longitudinal non-shearing-resistant type pulling resistant connecting member and belongs to the technical field of structural engineering. The connecting member is used for connecting a steel girder and a concrete plate and comprises a screw rod and a screw nut, wherein the screw rod and the screw nut are mechanically connected through screws; the periphery of the screw rod is coated with an elastic material pipe and is welded on the top flange plate of the steel girder; and if greater needs of relative slippage between the steel girder and concrete are required, the periphery of the screw rod can be further coated with an elastic material pipe. When the connecting member is adopted in the hogging moment region of a steel-concrete continuous composite girder bridge and a steel-concrete composite frame structure, a pulling stress of the concrete plate in the hogging moment can be effectively reduced, the longitudinal prestressing guide degree of the concrete plate is increased, the long-term performance and durability of the concrete plate are improved, and meanwhile the connecting member has reliable anti-pulling capability and is capable of resisting the lifting action of the concrete plate on the steel girder. The connecting member provided by the utility model has the advantages of convenience for getting materials, simplicity in structure, quickness in construction, reasonability in stress and good technological and economic benefits.
Description
Technical field
The utility model relates to a kind of connector that is applied to bridge construction and building structure, and particularly a kind of connector that is applied to Prestressed Steel and Concrete Composite Beam bridge and steel-concrete composite frame structure hogging moment area belongs to technical field of structural engineering.
Background technology
Be illustrated in figure 1 as the Prestressed Steel and Concrete Composite Beam bridge, shown in Figure 2 is the steel-concrete group frame, and the steel-concrete composite beam that wherein adopts is formed by girder steel and concrete slab, and both adopt peg connector 9 to link to each other usually, and are as shown in Figure 3.The main effect of peg connector 9 comprises: (1) shearing resistance: bear the interface longitudinal shear between girder steel and the concrete slab; Restriction interface between the two vertically is free to slide; Thereby guarantee girder steel and concrete slab cooperative transformation, co-operation; Give full play to compound action, improve rigidity of section and supporting capacity; (2) resistance to plucking: the vertical separation that the opposing concrete slab causes because of whole buckling and partial lateral bending and starting.
Adopt the peg connector to link to each other girder steel and concrete slab; Compound beam 1 for the positive bending moment district; Girder steel and concrete compound action can make the concrete slab pressurized, and the girder steel major part is drawn, and give full play to girder steel and concrete material property separately; Significantly improve rigidity of section and bearing capacity, reduce structure height.
Yet for the compound beam 2 of hogging moment area, girder steel and concrete compound action can make concrete slab drawn, and cause its more easy of crack.Tensile stress in the concrete slab that shrinkage and creep and temperature effect produced can produce adverse influence to the long-term behaviour and the durability of concrete slab owing to the constraint of peg connector can not get effective release.In addition; In continuous composite beam bridge; In order to reduce the tensile stress in the concrete slab, avoid its cracking, need in compound beam hogging moment area concrete slab, arrange a large amount of longitudinal prestressing strands; But the prestressing force that applies can be passed to the girder steel top flange through the peg connector, thereby reduces the efficient of longitudinal prestressing greatly.In sum; Hogging moment area at continuous composite beam bridge and steel-concrete composite frame structure; Adopt the peg connector to produce adverse influence to structure stress; If but do not adopt the peg connector to make steel and concrete that compound action not take place, though can improve the problems referred to above, the vertically pulling-resistant problem of concrete slab could effectively be solved.Therefore, Prestressed Steel and Concrete Composite Beam bridge and steel-concrete composite frame structure still lack at present and a kind ofly are used for a hogging moment area resistance to plucking but the vertical novel connector of not shearing resistance, thereby have restricted the promotion and application of these two kinds of form of structure.
To the problems referred to above, the applicant is on March 18th, 2011, application number: 201110065691.X; The patent of invention " vertically not shearing resistance T type anti-pulling connector and job practices thereof " of application; Provide a kind of and effectively be used for a hogging moment area resistance to plucking but the novel connector scheme of vertical not shearing resistance, this scheme realizes vertically not shearing resistance but the purpose of resistance to plucking through in T-steel side of being made up of web and top board and end face foamed plastic pasting; Use this connector can effectively reduce the tensile stress of hogging moment area concrete slab; Improve the longitudinal prestressing importing degree of concrete slab, improve the long-term behaviour and the durability of concrete slab, this connector has reliable resistance to plucking ability simultaneously; Can resist the start effect of concrete slab, have broad application prospects with respect to girder steel.But the workload of the on-the-spot foamed plastic pasting of this scheme is bigger, and foamed plastics is prone to be damaged in constructing at the scene, so its structure is further improved.The utility model not only can be realized the effect of not shearing resistance resistance to plucking, and reduce the workload of site operation that the quality of site operation also more is prone to guarantee equally through adopting a kind of new member.
The utility model content
The purpose of the utility model is to deficiency of the prior art; A kind of vertically not shearing resistance screw anti-pulling connector and job practices thereof are provided, solve the technical problem that continuous composite beam bridge and steel-concrete composite frame structure hogging moment area adopt the peg connector that structure stress is had a negative impact.Compound beam 1 still adopts traditional peg connector 9 in the positive bending moment district, adopts the vertically not shearing resistance screw anti-pulling connector of the utility model at hogging moment compound beam 2, thereby can effectively reduce the tensile stress of hogging moment area concrete slab; Improve the longitudinal prestressing efficient of concrete slab; Improve the long-term behaviour and the durability of concrete slab, have resistance to plucking simultaneously and do in order to the vertical separation of opposing concrete slab and start effect, simple structure; Easy construction, economic performance is more excellent.
The technical scheme of the utility model is following:
A kind of vertically not shearing resistance screw anti-pulling connector of the utility model is used to connect girder steel and concrete slab, and described girder steel comprises top flange plate 4, web 5 and base plate 6, and described concrete slab is made up of concrete slab reinforcing bar 7 and concrete eight; It is characterized in that: described connector comprises screw rod 10 and nut 11, and screw rod 10 passes through the screw thread mechanical connection with nut 11, the flexible tubes of material 12 of outsourcing around the screw rod 10, and be welded on the top flange plate 4.
The utility model has following beneficial effect with respect to prior art:
(1) owing to vertically can be free to slide between concrete slab and the girder steel; Can effectively discharge the tensile stress in the Prestressed Steel and Concrete Composite Beam hogging moment area concrete slab; Can be in continuous composite beam bridge less with the purpose of even not using the concrete slab longitudinal prestressing, the efficient of longitudinal prestressing is compared and is adopted the compound beam of peg connector also to increase significantly; (2) can effectively reduce tensile stress in the concrete slab that concrete shrinkage and creep and temperature effect cause, improve the long-term stress performance of concrete slab, improve the durability of concrete slab.(3) this connector simple structure is drawn materials conveniently, and screw rod is welded on the girder steel in factory in advance, and the scene only needs the cover tube of elastic material, and nut and screw rod adopt mechanical connection, and easy for installation quick, economic performance is more excellent; (4) this connector has kept the effect of traditional peg connector resistance to plucking, is highly resistant to concrete slab crooked and laterally vertical separation of causing of uneven loading action and starting because of whole buckling, partial lateral.
Description of drawings
Fig. 1 adopts different connector type sketch mapes for compound beam zones of different in the Prestressed Steel and Concrete Composite Beam bridge.
Fig. 2 adopts different connector type sketch mapes for compound beam zones of different in the steel-concrete composite frame structure.
Fig. 3 adopts the compound beam cross-sectional drawing of traditional peg connector for the positive bending moment district.
Fig. 4 adopts the vertically compound beam cross-sectional drawing of not shearing resistance screw anti-pulling connector for hogging moment area.
Fig. 5 is the flexible tubes of material sketch map of outsourcing around the screw rod of vertical not shearing resistance screw anti-pulling connector of hogging moment area employing.
The screw rod of vertical not shearing resistance screw anti-pulling connector that Fig. 6 adopts for hogging moment area and nut be the flexible tubes of material sketch map of outsourcing on every side.
Fig. 7 only adopts the vertically not shearing resistance screw anti-pulling connector compound beam skiagraph in the flexible tubes of material of screw rod outsourcing for hogging moment area.
Fig. 8 all is surrounded by the vertically not shearing resistance screw anti-pulling connector compound beam skiagraph of tube of elastic material for hogging moment area adopts screw rod and nut.
Fig. 9 is the concrete structure and the installation steps sketch map of vertically not shearing resistance screw anti-pulling connector.
Among the figure: 1-positive bending moment district adopts the compound beam of traditional peg connector; The 2-hogging moment area adopts the vertically compound beam of not shearing resistance screw anti-pulling connector; Post in the 3-group frame; The 4-top flange plate; The 5-web; The 6-base plate; 7-concrete slab reinforcing bar; The 8-concrete; 9-peg connector; The 10-screw rod; The 11-nut; The 12-tube of elastic material.
The specific embodiment
Below in conjunction with accompanying drawing, structure, the work progress of the utility model further described as follows.
As shown in Figure 4, girder steel is made up of top flange plate 4, web 5 and base plate 6, and concrete slab is made up of concrete slab reinforcing bar 7 and concrete eight.The vertically not shearing resistance screw anti-pulling connector of the utility model is in order to connect girder steel and concrete slab, shown in Fig. 4 b.Comprise that screw rod 10 and nut 11 form, screw rod 10 and nut 11 are through the screw thread mechanical connection, and screw rod 10 is welded on the top flange plate 4, and the flexible tubes of material 12 of outsourcing on every side, and tube of elastic material can be plastic pipe or rubber tube, shown in Fig. 7 and Fig. 9 a, b.
When the slippage requirement is big relatively between concrete slab and the girder steel, can be plastic pipe or rubber tube in nut 11 outsourcing elastic material pipes 12 tube of elastic material simultaneously, (shown in Fig. 6, Fig. 8 and Fig. 9 c).Screw rod outsourcing elastic material pipe 12 can be plastic pipe or rubber tube with nut outsourcing elastic material pipe 12, and its pipe thickness is confirmed according to the relative slippage demand of girder steel and concrete slab.
This connector since longitudinal rigidity a little less than, possess shear resistance hardly, make between concrete slab and the girder steel and can vertically be free to slide, but have stronger resistance to plucking ability simultaneously, make concrete slab and girder steel still have stronger globality.
The job practices of the utility model is:
The described vertically not shearing resistance of the utility model screw anti-pulling connector; Its job practices is following: in factory screw rod 10 is welded in top flange plate 4; Behind the on-the-spot installation in position of girder steel around screw rod 10 outsourcing elastic material pipe 12 (Fig. 9 a); And nut 11 is mechanically connected to (Fig. 9 b) on the screw rod 10 through screw thread, and can be further at nut 11 outsourcing elastic material pipes 12 (Fig. 9 c), last colligation concrete slab reinforcing bar 7; Fluid concrete 8, thus form like Fig. 4～vertically not shearing resistance screw anti-pulling connector shown in Figure 9.
The utility model provides a kind of vertically not shearing resistance screw anti-pulling connector, can be used for the hogging moment area of Prestressed Steel and Concrete Composite Beam.This connector can effectively reduce the tensile stress of hogging moment area concrete slab; Improve the longitudinal prestressing importing degree of concrete slab, improve the long-term behaviour and the durability of concrete slab, have the resistance to plucking ability simultaneously; Can resist the vertical separation of concrete slab and start effect; Simple structure, easy construction, economic performance is more excellent.
Claims (3)
1. a vertical not shearing resistance screw anti-pulling connector is used to connect girder steel and concrete slab, and described girder steel comprises top flange plate (4), web (5) and base plate (6), and described concrete slab is made up of concrete slab reinforcing bar (7) and concrete (8); It is characterized in that: described company comprises screw rod (10) and nut (11) by part, and screw rod (10) passes through the screw thread mechanical connection with nut (11), the flexible tubes of material of screw rod (10) outsourcing on every side (12), and be welded on the top flange plate (4).
2. vertically not shearing resistance screw anti-pulling connector according to claim 1 is characterized in that, the flexible tubes of material of external packets (12) of said nut (11).
3. vertically not shearing resistance screw anti-pulling connector according to claim 1 and 2 is characterized in that described tube of elastic material (12) is plastic pipe or rubber tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205180375U CN202482751U (en) | 2011-12-09 | 2011-12-09 | Longitudinal non-shearing-resistant type pulling resistant connecting member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205180375U CN202482751U (en) | 2011-12-09 | 2011-12-09 | Longitudinal non-shearing-resistant type pulling resistant connecting member |
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| Publication Number | Publication Date |
|---|---|
| CN202482751U true CN202482751U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205180375U Expired - Lifetime CN202482751U (en) | 2011-12-09 | 2011-12-09 | Longitudinal non-shearing-resistant type pulling resistant connecting member |
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| CN (1) | CN202482751U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425105A (en) * | 2011-12-09 | 2012-04-25 | 清华大学 | Longitudinal non-shearing resistance screw-type pullout-resistance connecting piece and construction method thereof |
| CN105297936A (en) * | 2015-10-27 | 2016-02-03 | 同济大学 | Beam and slab connecting structure for self-restoring structures |
| CN105672116A (en) * | 2016-02-02 | 2016-06-15 | 河海大学 | Prefabricated structure for steel-concrete combination beam |
| CN105803914A (en) * | 2016-03-23 | 2016-07-27 | 中铁大桥勘测设计院集团有限公司 | Composite beam with channel beam and bridge |
| CN107829499A (en) * | 2017-11-29 | 2018-03-23 | 华南理工大学 | A kind of resistance to plucking not shearing resistance WELDING STUDS overcoat foam strip machine and its manufactured WELDING STUDS |
| CN109826088A (en) * | 2019-03-21 | 2019-05-31 | 清华大学 | A kind of variation rigidity shear connector |
| CN110409288A (en) * | 2019-07-03 | 2019-11-05 | 清华大学 | The shear connector and construction method of unidirectional slip |
| CN111576228A (en) * | 2020-05-26 | 2020-08-25 | 浙江交通职业技术学院 | Assembling method of steel-concrete combined beam bridge structure with overall performance |
-
2011
- 2011-12-09 CN CN2011205180375U patent/CN202482751U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425105A (en) * | 2011-12-09 | 2012-04-25 | 清华大学 | Longitudinal non-shearing resistance screw-type pullout-resistance connecting piece and construction method thereof |
| CN105297936A (en) * | 2015-10-27 | 2016-02-03 | 同济大学 | Beam and slab connecting structure for self-restoring structures |
| CN105672116A (en) * | 2016-02-02 | 2016-06-15 | 河海大学 | Prefabricated structure for steel-concrete combination beam |
| CN105672116B (en) * | 2016-02-02 | 2017-08-22 | 河海大学 | Prefabricated assembled steel reinforced concrete combines beam construction |
| CN105803914A (en) * | 2016-03-23 | 2016-07-27 | 中铁大桥勘测设计院集团有限公司 | Composite beam with channel beam and bridge |
| CN107829499A (en) * | 2017-11-29 | 2018-03-23 | 华南理工大学 | A kind of resistance to plucking not shearing resistance WELDING STUDS overcoat foam strip machine and its manufactured WELDING STUDS |
| CN107829499B (en) * | 2017-11-29 | 2023-10-20 | 华南理工大学 | Foam tape machine sleeved with anti-pulling shearing-resistant shearing nails and shearing nails manufactured by foam tape machine |
| CN109826088A (en) * | 2019-03-21 | 2019-05-31 | 清华大学 | A kind of variation rigidity shear connector |
| CN110409288A (en) * | 2019-07-03 | 2019-11-05 | 清华大学 | The shear connector and construction method of unidirectional slip |
| CN111576228A (en) * | 2020-05-26 | 2020-08-25 | 浙江交通职业技术学院 | Assembling method of steel-concrete combined beam bridge structure with overall performance |
| CN111576228B (en) * | 2020-05-26 | 2021-07-13 | 浙江交通职业技术学院 | Assembling method of steel-concrete combined beam bridge structure with overall performance |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
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| CX01 | Expiry of patent term |