CN109723150A - A kind of thin-wall steel tube constraint ultra-high performance concrete shear connector - Google Patents
A kind of thin-wall steel tube constraint ultra-high performance concrete shear connector Download PDFInfo
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- CN109723150A CN109723150A CN201910010695.4A CN201910010695A CN109723150A CN 109723150 A CN109723150 A CN 109723150A CN 201910010695 A CN201910010695 A CN 201910010695A CN 109723150 A CN109723150 A CN 109723150A
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Abstract
The invention discloses a kind of thin-wall steel tubes to constrain ultra-high performance concrete shear connector, it is characterized by: ultra-high performance concrete (2) are filled in the inside of thin-wall steel tube (1), and adhere to vulcanised rubber layer (3) in the outer surface of thin-wall steel tube (1)；The outer diameter of the thin-wall steel tube constraint ultra-high performance concrete shear connector is greater than the internal diameter of installation duct (4), and the outer diameter of thin-wall steel tube (1) is less than the internal diameter of installation duct (4).The present invention has the advantages such as the processing is simple, assembly is easy, anti-shearing sliding rigidity is big, ductility is good.
Description
Technical field
The present invention relates to a kind of suitable for assembled bamboo and wood-concrete combination beam shear connector, belongs to civil engineering
In modern bamboo-wood structure field.
Background technique
In assembled bamboo and wood-concrete combination beam, top precast slab and lower part bamboo and wood beam are cut by intermediate
Power connector is combined, and is realized and is worked together.Currently, there are mainly three types of the assembled modes of shear connector: one is
In the prefabrication process of concrete slab, connector is anchored in concrete slab in pre-buried mode, is then passed through at the construction field (site)
Bolt or nail connect upper and lower two components；Second is reserving installation hole road or pre-buried wooden unit in concrete slab, then
Concrete slab is assembled with bamboo and wood beam using screw at the scene integral；The third is all arranged in concrete slab and bamboo and wood beam
Duct is installed, is combined both using pin rod.There are the deficiencies in performance for these shear connectors: for the first shearing
Connector, the pre-buried precision of connector are influenced big by casting concrete plate, cause later period rigging error big, construction efficiency is low；
For second of shear connector, then can only use pin, anti-shearing rigidity is low, cause the combined effect of combination beam it is small, carrying
Power is low；For the third shear connector, the size of reserving hole channel and the size of connector will fit like a glove, and in concrete slab
Duct be also required in position with the duct in bamboo and wood it is accurate corresponding, in addition, shear connector itself does not have vertically pulling-resistant
Ability needs to design special resistance to plucking construction, complex.It can be seen that existing technology is to assembled shear connector
Production, the processing of concrete slab and bamboo and wood beam, the positioning requirements precision of mounting hole are high, cause connector processing complicated, structure
Part difficulty of processing is big, and assembly efficiency is low or the shear stiffness of shear connector itself is low, there is apparent performance deficiency.
Therefore, novel shear connector is developed, becoming reduces shear connector and component difficulty of processing, improves assembled
Bamboo and wood-concrete combined component construction efficiency and mechanical property key.
Summary of the invention
The object of the present invention is to provide a kind of novel shear connector, this connector have the processing is simple, assembly is easy,
The advantages such as anti-shearing sliding rigidity is big, ductility is good.
The technical solution of the present invention is as follows: a kind of thin-wall steel tube constrains ultra-high performance concrete shear connector, feature exists
In: ultra-high performance concrete is filled in the inside of thin-wall steel tube, and adheres to vulcanised rubber layer in the outer surface of thin-wall steel tube；It is described thin
The outer diameter of wall steel tube confinement ultra-high performance concrete shear connector is greater than the internal diameter in installation duct, and the outer diameter of thin-wall steel tube is small
Internal diameter in installation duct.The installation duct, it is characterised in that: it is equal diameter hole, it is pre- in precast slab
Bamboo and wood block is buried, and is goed deep into bamboo and wood beam.
Compared with existing shear connector, the present invention has the advantages that
(1) simple production process, precision are high.In thin-wall steel tube constraint ultra-high performance concrete shear connector, thin-walled
Steel pipe is industrialized standard component, and size is accurate, does not need secondary operation；Its internal filling ultra-high performance concrete, does not need
Mold and special installation；The technique of its attached vulcanised rubber layer in outside is highly developed, simple, it is contemplated that vulcanised rubber layer has good
Good deformability is low to the required precision of its thickness in assembly.Therefore, the manufacture craft of the shear connector is simple.
(2) very low to installation duct required precision, it is easy to assembly.On the one hand, the vulcanization rubber of shear connector surface attachment
Glue-line has good deformation behavior good, can effectively adapt to the error in installation duct；On the other hand, vulcanised rubber layer is effective
Increase shear connector and install duct inner wall frictional force, form reliable vertically pulling-resistant measure, prevent combination beam by
During power, there is the case where precast slab is vertically separated with bamboo and wood beam, because without vertically pulling-resistant structure is in addition arranged
It makes.In assembling process, shear connector can be inserted into mounting hole road by simple hammer mode, very convenient.
(3) mechanical property is good.Thin-wall steel tube itself has very high intensity and deformation performance, and to the superelevation of inside filling
Performance concrete has effect of restraint, the shearing strength and deformability of ultra-high performance concrete is effectively increased, so that steel pipe
With ultra-high performance concrete can cooperative bearing, shear connector is provided simultaneously with high rigidity and high ductility.
In general, the present invention proposes that thin-wall steel tube constrains ultra-high performance concrete shear connector, overcomes existing skill
The deficiency of art, the processing is simple, and assembly is easy, and mechanical property is good, has a good application prospect.
Detailed description of the invention
Fig. 1 is the longitudinal profile schematic diagram of thin-wall steel tube constraint ultra-high performance concrete shear connector；
Fig. 2 is the cross-sectional view of thin-wall steel tube constraint ultra-high performance concrete shear connector；
Fig. 3 is the assembling schematic diagram of thin-wall steel tube constraint ultra-high performance concrete shear connector；
Fig. 4 is the assembly cross-sectional view of thin-wall steel tube constraint ultra-high performance concrete shear connector.
Marginal data
1 be thin-wall steel tube 2 be ultra-high performance concrete 3 is vulcanised rubber layer
4 be installation duct 5 be precast slab 6 be pre-buried bamboo and wood block
7 be bamboo and wood beam
Specific embodiment
The present invention is as shown in the picture, a kind of thin-wall steel tube constraint ultra-high performance concrete shear connector, it is characterised in that:
Ultra-high performance concrete (2) are filled in the inside of thin-wall steel tube (1), and adhere to vulcanised rubber layer in the outer surface of thin-wall steel tube (1)
(3)；The outer diameter of the thin-wall steel tube constraint ultra-high performance concrete shear connector is greater than the internal diameter of installation duct (4), and thin
The outer diameter of wall steel pipe (1) is less than the internal diameter of installation duct (4)；Installing duct (4) is equal diameter hole, runs through precast slab
(5) the pre-buried bamboo and wood block (6) in, and go deep into bamboo and wood beam (7).
As shown in Figure 1, Figure 2, Figure 3 and Figure 4.When implementation, firstly, the surface of cleaning thin-wall steel tube (1), and brushing rubber applies
Vulcanized after material, is formed vulcanised rubber layer (3)；Then, it pours ultra-high performance concrete (2), completes in thin-wall steel tube (1)
The production of shear connector；Next, by shear connector be placed on 90 DEG C, carry out in the environment of 95% or more relative humidity it is wet
Thermal curing 48 hours, accelerate the strength development of ultra-high performance concrete (2).It, will be with pre-buried bamboo and wood block (6) when assembled in situ
Precast slab (5) is placed on bamboo and wood beam (7), is disposably drilled through downwards at the top of pre-buried bamboo and wood block (6) with hand-drill
It installs duct (4)；Finally, shear connector is inserted into installation duct (4), and hammer in place, completion assembled in situ.
It should be noted that filling other kinds of cement-based material or synthesis high score material in the inside of thin-wall steel tube (1)
Material etc., and adhere to other kinds of elastomeric layer in the outside of thin-wall steel tube (1), it is clear that also belong to protection model of the invention
It encloses.
Claims (2)
1. a kind of thin-wall steel tube constrains ultra-high performance concrete shear connector, it is characterised in that: the inside of thin-wall steel tube (1) is filled out
It fills ultra-high performance concrete (2), and adheres to vulcanised rubber layer (3) in the outer surface of thin-wall steel tube (1)；The thin-wall steel tube constraint
The outer diameter of ultra-high performance concrete shear connector is greater than the internal diameter of installation duct (4), and the outer diameter of thin-wall steel tube (1) is less than peace
Fill the internal diameter of duct (4).
2. installation duct (4) according to claim 1, it is characterised in that: be equal diameter hole, run through precast slab
(5) the pre-buried bamboo and wood block (6) in, and go deep into bamboo and wood beam (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010695.4A CN109723150A (en) | 2019-01-07 | 2019-01-07 | A kind of thin-wall steel tube constraint ultra-high performance concrete shear connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010695.4A CN109723150A (en) | 2019-01-07 | 2019-01-07 | A kind of thin-wall steel tube constraint ultra-high performance concrete shear connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109723150A true CN109723150A (en) | 2019-05-07 |
Family
ID=66298821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910010695.4A Pending CN109723150A (en) | 2019-01-07 | 2019-01-07 | A kind of thin-wall steel tube constraint ultra-high performance concrete shear connector |
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| CN (1) | CN109723150A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001200653A (en) * | 2000-01-19 | 2001-07-27 | Shimizu Corp | Seismic controlling building |
| US20050257481A1 (en) * | 2004-04-13 | 2005-11-24 | Shaw Reece F | Article of manufacture for building structures made from precast concrete units and process for making structural system |
| 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 |
| CN103088964A (en) * | 2013-01-24 | 2013-05-08 | 合肥工业大学 | Steel tube foam concrete combined upright column and construction method thereof |
| CN105369987A (en) * | 2015-11-16 | 2016-03-02 | 沈阳建筑大学 | Steel bar lap joint structure containing FRP constraint ring |
| CN106906951A (en) * | 2017-03-10 | 2017-06-30 | 哈尔滨工业大学深圳研究生院 | The concrete filled steel tube component and its processing method of a kind of steel tube confinement of sandwich |
| CN107313540A (en) * | 2017-07-24 | 2017-11-03 | 太原理工大学 | The anti-buckling assembled combination beam of fire prevention and construction method |
-
2019
- 2019-01-07 CN CN201910010695.4A patent/CN109723150A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001200653A (en) * | 2000-01-19 | 2001-07-27 | Shimizu Corp | Seismic controlling building |
| US20050257481A1 (en) * | 2004-04-13 | 2005-11-24 | Shaw Reece F | Article of manufacture for building structures made from precast concrete units and process for making structural system |
| 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 |
| CN103088964A (en) * | 2013-01-24 | 2013-05-08 | 合肥工业大学 | Steel tube foam concrete combined upright column and construction method thereof |
| CN105369987A (en) * | 2015-11-16 | 2016-03-02 | 沈阳建筑大学 | Steel bar lap joint structure containing FRP constraint ring |
| CN106906951A (en) * | 2017-03-10 | 2017-06-30 | 哈尔滨工业大学深圳研究生院 | The concrete filled steel tube component and its processing method of a kind of steel tube confinement of sandwich |
| CN107313540A (en) * | 2017-07-24 | 2017-11-03 | 太原理工大学 | The anti-buckling assembled combination beam of fire prevention and construction method |
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Application publication date: 20190507 |