CN209413129U - Lightweight assembled bamboo and wood-concrete combination beam - Google Patents
Lightweight assembled bamboo and wood-concrete combination beam Download PDFInfo
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- CN209413129U CN209413129U CN201920021718.7U CN201920021718U CN209413129U CN 209413129 U CN209413129 U CN 209413129U CN 201920021718 U CN201920021718 U CN 201920021718U CN 209413129 U CN209413129 U CN 209413129U
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- bamboo
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- combination beam
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Abstract
The utility model discloses a kind of lightweight assembled bamboo and wood-concrete combination beams, it is characterized by: precast slab (1) is combined with bamboo and wood beam (2) by compound shear connector (3), and lightweight concrete overlapping layers (5) are poured on top；Pre-buried bamboo and wood block (6) is arranged in precast slab (1), and screw (4) penetrates at the top of pre-buried bamboo and wood block (6), is fixed in bamboo and wood beam (2)；Compound shear connector (3) is made of steel core bar (7) and outsourcing ultra-high performance concrete (8).The utility model has small, good integrity of being self-possessed, generates the advantages such as simple process, assembly efficiency are high, bending stiffness is big.
Description
Technical field
The utility model relates to a kind of lightweight bamboo and wood-concrete combination beams suitable for fabricated construction, belong to building
Building structure field in engineering.
Background technique
In assembled bamboo and wood-concrete combination beam, top concrete slab and lower part bamboo and wood beam are connected by intermediate shearing
Fitting is combined, and is realized and is worked together.There are two types of current assembly methods: one is the prefabrication process in concrete slab
In, connector is anchored in concrete slab in pre-buried mode, then at the construction field (site) by bolt or nail, by upper and lower two groups
Part connects；Another kind is reserving installation hole road or pre-buried wooden unit in concrete slab, and concrete slab is enabled to have connector
The condition enough penetrated through, it is then at the scene using nail or screw rod, concrete slab and bamboo and wood beam assembling group is integral.These assembleds
Combination beam all has the deficiency in performance: for former assembled combination beam, the pre-buried precision of connector is by casting concrete
The influence of plate is big, it is difficult to control, cause assembled in situ difficult.It is such as real using the form of reserving hole channel for latter combination beam
Now assembly construction, then the reserving hole channel of concrete slab needs accurately corresponding one by one with the bore position in bamboo and wood beam, to positioning accurate
The requirement of degree is high, and component difficulty of processing is big, low efficiency；If realizing assembly construction in the form of pre-buried wooden unit, can only adopt
Use pin as connector, and pin connection rigidity is low, is easy to cause combination beam bending stiffness low and deforms excessive problem.This
Outside, precast slab it is difficult to lead to assembled in situ, and member dead weight is big, undertakes external load there is also from great problem
Ability also can decrease, and also very unfavorable to the antidetonation of structure.Furthermore in general assembled bamboo and wood-Combined concrete
Inevitably there is gap between precast concrete lath in Liang Zhong, the globality of floor is poor, seriously affects the entirety of structure
Rigidity.Therefore, novel assembled bamboo and wood-concrete combination beam is developed, becomes and improves this combined member construction efficiency and power
The key learned performance, reduce self weight.
Summary of the invention
The purpose of the utility model is to provide a kind of light-weighted assembled bamboo and wood-concrete combination beam, small with self weight,
Good integrity generates the advantages such as simple process, assembly efficiency are high, bending stiffness is big.
The technical solution of the utility model are as follows: lightweight assembled bamboo and wood-concrete combination beam, it is characterised in that: prefabricated
Concrete slab is combined with bamboo and wood beam by compound shear connector, and pours lightweight concrete overlapping layers on top；It is prefabricated mixed
Pre-buried bamboo and wood block is arranged in concrete board, and screw is penetrated at the top of pre-buried bamboo and wood block, is fixed in bamboo and wood beam；Compound shear connector by
Steel core bar and outsourcing ultra-high performance concrete composition.Determine it is characterized by: precast slab and bamboo and wood beam are connected by screw to
Position, drills through the mounting hole of perforation, the internal diameter of mounting hole is consistent with the outer diameter of compound shear connector.It is characterized by: described
Lightweight concrete overlapping layers is light aggregate concrete, air entrained concrete or foam concrete.
Compared with existing assembled bamboo and wood-concrete combination beam, utility model has the advantages that
(1) small, the good integrity of self weight.Lightweight assembled bamboo and wood-concrete combination beam concrete slab, by prefabricated board with
Cast-in-place lightweight concrete is formed by stacking.Lightweight concrete is compared to normal concrete, bulk density very little, therefore, in the feelings that overall thickness is constant
Under condition, the self weight of entire concrete slab be can be effectively reduced.In addition, cast-in-place lightweight concrete overlapping layers effectively increases floor
Globality, thermal insulation property, sound insulation and the anti-vibration performance that the globality of structure can be effectively improved, and significantly improve floor itself.
(2) simple production process.Lightweight assembled bamboo and wood-concrete combination beam three components (bamboo and wood beams, concrete
Plate and shear connector) it is prefabricated component, separate machined, high production efficiency.Meanwhile it not needing in advance to anchor shear connector
It in concrete slab, does not need to drill in advance in bamboo and wood beam, it is entirely avoided caused by the deviations such as connector positioning and drilling yet
Later period assembly problem.
(3) assembly efficiency is high.At the scene when assembly construction, firstly, bamboo and wood beam and precast slab are connected by screw
Fixation is connect, this installation process does not require the positioning accuracy of pre-buried bamboo and wood block.Another important function of screw is vertical
Connection prevents concrete slab from occurring vertically separating by during curved with bamboo and wood beam.Then, installation duct is disposably drilled through, then
It is inserted into composite connector, i.e. completion assembled in situ.This process completely avoids the installation in bamboo and wood beam and precast slab
Duct needs accurate corresponding assembly problem one by one, substantially increases assembly efficiency.
(4) bending stiffness is big.In combination beam, compound shear connector directly takes on interface shear stress, the superelevation of outsourcing
Energy concrete shearing strength with higher and deformability, can effectively cooperate together with steel core bar, so that compound shearing
Connector is provided simultaneously with high rigidity and high ductility.Therefore, combination beam bending stiffness with higher, anti-bending strength are good.
In general, the utility model proposes a kind of lightweight assembled bamboo and wood-concrete combination beam, realizing dress
With it is high-efficient while, but also with good stress performance and lighter self weight, overcome the deficiencies in the prior art, have good
Application prospect.
Detailed description of the invention
Fig. 1 is lightweight assembled bamboo and wood-concrete combination beam combination diagram；
Fig. 2 is lightweight assembled bamboo and wood-concrete combination beam cross-sectional view；
Fig. 3 is the longitudinal profile schematic diagram of compound shear connector；
Fig. 4 is the cross-sectional view of compound shear connector；
Marginal data
1 be precast slab 2 be bamboo and wood beam 3 is compound shear connector
4 be screw 5 be lightweight concrete overlapping layers 6 be pre-buried bamboo and wood block
7 be steel core bar 8 be outsourcing ultra-high performance concrete 9 be mounting hole
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4.When implementation, firstly, steel core bar (7) are arranged in particular manufacturing craft, then pour
Outsourcing ultra-high performance concrete (8).After demoulding, by hydrothermal curing, accelerate the strength development of ultra-high performance concrete, is made multiple
It closes shear connector (3)；Synchronous production precast slab (1), and pre-buried bamboo and wood block (6) is set in design position；It is same with this
When, it processes bamboo and wood beam (2)；Next, all components are transported to construction site, bamboo and wood beam (2) are set up at the construction field (site), then will
Precast slab (1) is placed on bamboo and wood beam (2), screw (4) is passed through pre-buried bamboo and wood block (6), and be screwed into bamboo and wood beam (2)
In；Then, mounting hole (9) are disposably drilled through downwards at the top of pre-buried bamboo and wood block (6) with hand-drill；Then, by compound shearing
Connector (3) is inserted into mounting hole (9), completes assembled in situ；Finally, pouring lightweight concrete overlapping layers (5), combination beam is completed
Construction.
Claims (3)
1. lightweight assembled bamboo and wood-concrete combination beam, it is characterised in that: precast slab (1) passes through with bamboo and wood beam (2)
Compound shear connector (3) combines, and pours lightweight concrete overlapping layers (5) on top；Precast slab (1) setting is pre-
It buries bamboo and wood block (6), screw (4) penetrates at the top of pre-buried bamboo and wood block (6), is fixed in bamboo and wood beam (2)；Compound shear connector
(3) it is made of steel core bar (7) and outsourcing ultra-high performance concrete (8).
2. lightweight assembled bamboo and wood-concrete combination beam according to claim 1, it is characterised in that: precast concrete
Plate (1) and bamboo and wood beam (2) connect positioning by screw (4), drill through the mounting hole (9) of perforation, the internal diameter of mounting hole (9) with it is compound
The outer diameter of shear connector (3) is consistent.
3. lightweight assembled bamboo and wood-concrete combination beam according to claim 1, it is characterised in that: the light coagulation
Native overlapping layers (5) is light aggregate concrete, air entrained concrete or foam concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920021718.7U CN209413129U (en) | 2019-01-07 | 2019-01-07 | Lightweight assembled bamboo and wood-concrete combination beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920021718.7U CN209413129U (en) | 2019-01-07 | 2019-01-07 | Lightweight assembled bamboo and wood-concrete combination beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209413129U true CN209413129U (en) | 2019-09-20 |
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ID=67942918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920021718.7U Active CN209413129U (en) | 2019-01-07 | 2019-01-07 | Lightweight assembled bamboo and wood-concrete combination beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN209413129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707102A (en) * | 2019-01-07 | 2019-05-03 | 湖南大学 | Lightweight assembled bamboo and wood-concrete combination beam |
-
2019
- 2019-01-07 CN CN201920021718.7U patent/CN209413129U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707102A (en) * | 2019-01-07 | 2019-05-03 | 湖南大学 | Lightweight assembled bamboo and wood-concrete combination beam |
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