CN209538521U - One kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete - Google Patents
One kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete Download PDFInfo
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- CN209538521U CN209538521U CN201821683075.4U CN201821683075U CN209538521U CN 209538521 U CN209538521 U CN 209538521U CN 201821683075 U CN201821683075 U CN 201821683075U CN 209538521 U CN209538521 U CN 209538521U
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- concrete
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- steel section
- girder
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Abstract
It casts anchor the utility model discloses one kind and applies prestressed girder with rolled steel section en cased in concrete, including column footing component, multiple structural columns are provided on the column footing component, the girder with rolled steel section en cased in concrete of single-layer or multi-layer is provided between the structural column, drop-down component is provided at the column root of the structural column, the drop-down component applies prestressing force to the fashioned iron in girder with rolled steel section en cased in concrete before casting concrete.The utility model can be under the premise of not increasing additional counter prestressed component, prestressing force is applied to girder with rolled steel section en cased in concrete, it can less material utilization amount, reduce the load that armored concrete part is born in girder with rolled steel section en cased in concrete, the crack quantity and fracture width of girder with rolled steel section en cased in concrete is effectively reduced, while increasing in girder with rolled steel section en cased in concrete with respect to the stock utilization of the fashioned iron by middle part, the girder with rolled steel section en cased in concrete of the same same stress in section, using this technology, there can be the dosage for reducing material.
Description
Technical field
The utility model belongs to civil construction project field, and in particular to one kind, which is casted anchor, applies prestressed steel reinforced concrete
Beam.
Background technique
Girder with rolled steel section en cased in concrete because of the feature that its rigidity is big, bearing capacity is high, durability is good, fire protecting performance is good, be chiefly used in greatly across,
The high place of big load, space requirement.But the crack of girder with rolled steel section en cased in concrete is generally difficult to control, the size of the area of reinforcement is usual
It is also Crack Control, and fashioned iron, close to the middle part of beam section, stress can make it lower than the stress of steel bar stress on the outside of fashioned iron
The utilization rate of material reduces.
Summary of the invention
The utility model proposes that the purpose is to provide one kind and cast anchor to apply pre- answer in order to solve the problems existing in the prior art
The girder with rolled steel section en cased in concrete of power.
The technical solution of the utility model is: one kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, including column footing
Component is provided with multiple structural columns on the column footing component, the fashioned iron of single-layer or multi-layer is provided between the structural column
Beams of concrete, drop-down component is provided at the column root of the structural column, and the drop-down component is mixed to fashioned iron before casting concrete
Fashioned iron in solidifying soil beam applies prestressing force.
The structural column is the vertical applied force component for supporting girder with rolled steel section en cased in concrete.
The girder with rolled steel section en cased in concrete is the lateral stressed component for being used to support superstructure or roof slab, the girder with rolled steel section en cased in concrete
Including concrete, fashioned iron, longitudinal reinforcement and stirrup.
The lower end of the drop-down component is fixed at the column root of structural column, and the other end acts on the type of girder with rolled steel section en cased in concrete
In steel, the drop-down component is that can apply one of cable wire, steel tendon, high-strength steel bar of pretension.
The drop-down component is that single layer is arranged or cross-layer is arranged.
The drop-down component is to be symmetrical set or asymmetric setting.
The column footing component is foundation beam, the raft foundation, understructure that can balance drop-down modular level component
One of beam slab.
The utility model can apply girder with rolled steel section en cased in concrete pre- under the premise of not increasing additional counter prestressed component
Stress, can less material utilization amount, reduce the load that armored concrete part is born in girder with rolled steel section en cased in concrete, it is mixed that fashioned iron be effectively reduced
The crack quantity and fracture width of solidifying Tu Liang, while increasing in girder with rolled steel section en cased in concrete with respect to the material use of the fashioned iron by middle part
Rate, the girder with rolled steel section en cased in concrete of the same same stress in section can have the dosage for reducing material using this technology.
Detailed description of the invention
Fig. 1 is that single layer applies prestressed elevation in the utility model；
Fig. 2 is that cross-layer applies prestressed elevation in the utility model；
Wherein:
1 structural column, 2 girder with rolled steel section en cased in concrete
3 drop-down 4 column footing components of component.
Specific embodiment
Hereinafter, the utility model is described in detail referring to drawings and examples:
As shown in Figure 1 and 2, one kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, including column footing component 4, the column
It is provided with multiple structural columns 1 on lower basic component 4, the girder with rolled steel section en cased in concrete of single-layer or multi-layer is provided between the structural column 1
2, drop-down component 3 is provided at the column root of the structural column 1, the drop-down component 3 is before casting concrete to steel reinforced concrete
Fashioned iron in beam 2 applies prestressing force.
The structural column 1 is the vertical applied force component for supporting girder with rolled steel section en cased in concrete 2.
The girder with rolled steel section en cased in concrete 2 is the lateral stressed component for being used to support superstructure or roof slab, the steel reinforced concrete
Beam 2 includes concrete, fashioned iron, longitudinal reinforcement and stirrup.
The lower end of the drop-down component 3 is fixed at the column root of structural column 1, and the other end acts on girder with rolled steel section en cased in concrete 2
Fashioned iron in, the drop-down component 3 be can apply one of cable wire, steel tendon, high-strength steel bar of pretension.
The drop-down component 3 is that single layer is arranged or cross-layer is arranged.
The drop-down component 3 is to be symmetrical set or asymmetric setting, the drop-down component 3 of the left and right sides meet at a little or
It is space crossed.
The column footing component 4 is foundation beam, raft foundation, the lower layer knot that can balance drop-down 3 horizontal component of component
One of structure beam slab.
The drop-down component 3 can be rigidity or flexibility, it is desirable to be able to bear design pretension.
The drop-down component 3 can be single, more arrangements, symmetrically or non-symmetrically, and the friendship on girder with rolled steel section en cased in concrete 2
Point can not be on one point.It, can cross-layer setting in the case that intermediate floor punches.
The column footing component 4 can bear to apply influence of the prestressing force to it, balance prestressed horizontal component.
A kind of cast anchor applies the construction method of prestressed girder with rolled steel section en cased in concrete, comprising the following steps:
Firstly, the fashioned iron in construction column footing component 4, structural column 1 and girder with rolled steel section en cased in concrete 2；
Secondly, after the completion of fashioned iron construction, and before casting concrete, connection drop-down component 4, by drop-down component 4
Apply pretension, the fashioned iron in girder with rolled steel section en cased in concrete 2 is made to generate downward power；
Again, the concrete for pouring girder with rolled steel section en cased in concrete 2 removes the prestretching of drop-down component 4 after concrete reaches intensity
Power removes drop-down component 4；
Finally, 2 Shaped Steel of girder with rolled steel section en cased in concrete that construction is completed generates upward power to armored concrete part, to subtract
The internal force and crack that small or counteracting armored concrete part generates under downward load action.
The drop-down component 4 is that single layer is arranged or cross-layer setting will be worn among it when drop-down component 4 is that cross-layer is arranged
Reserved opening in the floor crossed.
The utility model can apply girder with rolled steel section en cased in concrete pre- under the premise of not increasing additional counter prestressed component
Stress, can less material utilization amount, reduce the load that armored concrete part is born in girder with rolled steel section en cased in concrete, it is mixed that fashioned iron be effectively reduced
The crack quantity and fracture width of solidifying Tu Liang, while increasing in girder with rolled steel section en cased in concrete with respect to the material use of the fashioned iron by middle part
Rate, the girder with rolled steel section en cased in concrete of the same same stress in section can have the dosage for reducing material using this technology.
Claims (7)
1. one kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, including column footing component (4), it is characterised in that: the column
It is provided with multiple structural columns (1) on lower basic component (4), the fashioned iron that single-layer or multi-layer is provided between the structural column (1) is mixed
It coagulates Tu Liang (2), drop-down component (3) is provided at the column root of the structural column (1), the drop-down component (3) is in casting concrete
The preceding fashioned iron in girder with rolled steel section en cased in concrete (2) applies prestressing force,
After the completion of fashioned iron construction, and before casting concrete, connection drop-down component (3) is pre- by applying to drop-down component (3)
Pulling force makes the fashioned iron in girder with rolled steel section en cased in concrete (2) generate downward power.
2. one kind according to claim 1, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, it is characterised in that: the structure
Column (1) is the vertical applied force component for supporting girder with rolled steel section en cased in concrete (2).
3. one kind according to claim 1, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, it is characterised in that: the fashioned iron
Beams of concrete (2) is the lateral stressed component for being used to support superstructure or roof slab, and the girder with rolled steel section en cased in concrete (2) includes coagulation
Soil, fashioned iron, longitudinal reinforcement and stirrup.
4. one kind according to claim 3, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, it is characterised in that: the drop-down
The lower end of component (3) is fixed at the column root of structural column (1), and the other end acts in the fashioned iron of girder with rolled steel section en cased in concrete (2), institute
Stating drop-down component (3) is that can apply one of cable wire, steel tendon, high-strength steel bar of pretension.
5. one kind according to claim 4, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, it is characterised in that: the drop-down
Component (3) is that single layer is arranged or cross-layer is arranged.
6. one kind according to claim 4, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, it is characterised in that: the drop-down
Component (3) is to be symmetrical set or asymmetric setting.
7. one kind according to claim 4, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete, it is characterised in that: under the column
Basic component (4) is one in the foundation beam, raft foundation, understructure beam slab for can balance drop-down component (3) horizontal component
Kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821683075.4U CN209538521U (en) | 2018-10-17 | 2018-10-17 | One kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821683075.4U CN209538521U (en) | 2018-10-17 | 2018-10-17 | One kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete |
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| Publication Number | Publication Date |
|---|---|
| CN209538521U true CN209538521U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821683075.4U Active CN209538521U (en) | 2018-10-17 | 2018-10-17 | One kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184077A (en) * | 2018-10-17 | 2019-01-11 | 中国铁路设计集团有限公司 | One kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete and its construction method |
-
2018
- 2018-10-17 CN CN201821683075.4U patent/CN209538521U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184077A (en) * | 2018-10-17 | 2019-01-11 | 中国铁路设计集团有限公司 | One kind, which is casted anchor, applies prestressed girder with rolled steel section en cased in concrete and its construction method |
| CN109184077B (en) * | 2018-10-17 | 2023-05-09 | 中国铁路设计集团有限公司 | Steel reinforced concrete beam with prestressed lower anchor and construction method thereof |
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