CN209494127U - Large-span prestressed steel and concrete beam - Google Patents
Large-span prestressed steel and concrete beam Download PDFInfo
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- CN209494127U CN209494127U CN201920134061.5U CN201920134061U CN209494127U CN 209494127 U CN209494127 U CN 209494127U CN 201920134061 U CN201920134061 U CN 201920134061U CN 209494127 U CN209494127 U CN 209494127U
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- stirrup
- fashioned iron
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- muscle
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Abstract
The utility model discloses a kind of large-span prestressed steel and concrete beams, left and right sidewall uniform welding in the middle part of the fashioned iron has multiple interior waist muscle, the periphery of the fashioned iron is provided with multiple stirrups, the periphery of the interior stirrup is arranged in the outer stirrup, the left and right inner wall of the outer stirrup is from top to bottom provided with multiple outer waist muscle, the fashioned iron is symmetrically arranged with the first lacing wire in two sides up and down, multiple second lacing wires are symmetrically arranged at left and right sides of the fashioned iron, the inner roof wall of the outer stirrup is fixedly connected with multiple glutens, the inner bottom wall of the outer stirrup is fixedly connected with multiple bottom muscle, deformed bar is symmetrically arranged on the downside of left and right sidewall in the middle part of the fashioned iron, the utility model can be shortened construction period, possess better fire resisting and durability performance compared with steel construction, possess better cracking resistance compared with pure steel reinforced concrete structure, and it can be effective Solve the problems, such as the larger caused amount of deflection of the generally existing dead load of pure steel reinforced concrete structure.
Description
Technical field
The utility model relates to large span construction project technical field, in particular to a kind of large-span prestressed steel and concrete
Beam.
Background technique
There is new feature in the urban architecture of China at present, more and more buildings from project scale, engineering structure and
Functional requirement increasingly develops to the direction of " high, big, special, smart, complete ", and the requirement of scientific and technological content is also higher and higher, building
Comprehensive function is more and more stronger.Multi-level, multi-functional requirement in space use, so that building building often collects commerce and trade, does
The one such as public affairs.Using large bay, large spatial structure.At present large spatial structure mainly use steel construction, pure steel reinforced concrete structure,
Prestressed reinforced concrete construction.These structures it is generally existing because dead load it is larger caused by amount of deflection problem, and long construction period,
It is at high cost.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of large-span prestressed steel and concrete beams, can be shortened construction week
Phase possesses better fire resisting and durability performance compared with steel construction, possesses compared with pure steel reinforced concrete structure preferably anti-
Fragility energy, and can effectively solve the larger caused amount of deflection problem of the generally existing dead load of pure steel reinforced concrete structure.
Large-span prestressed steel and concrete beam, including fashioned iron, the section of the fashioned iron are I-shaped, extension before and after the fashioned iron
It is arranged, the left and right sidewall uniform welding in the middle part of the fashioned iron there are multiple interior waist muscle, is extended before and after the interior waist muscle, the same side
The interior waist muscle is arranged in parallel up and down and vertical range between the adjacent interior waist muscle is identical, the periphery setting of the fashioned iron
There are multiple stirrups, be arranged in parallel before and after the stirrup, the stirrup includes interior stirrup and outer stirrup, the interior stirrup and outer stirrup
It is rectangle, the left and right sidewall of the interior stirrup is fixedly connected with the interior waist muscle of respective heights, and the outer stirrup setting exists
The periphery of the interior stirrup, the inner roof wall of the outer stirrup are fixedly connected with the outer roof of the interior stirrup, the outer stirrup
Inner bottom wall is fixedly connected with the exterior bottom wall of the interior stirrup, and the left and right inner wall of the outer stirrup is from top to bottom provided with multiple outer waists
Muscle, the outer waist muscle are fixedly connected on the outer stirrup, are arranged in parallel above and below outer waist muscle described in the same side and adjacent described outer
Vertical range between waist muscle is equal with the vertical range between the adjacent interior waist muscle, and two sides are symmetrical arranged the fashioned iron up and down
There is the first lacing wire, first lacing wire is fixedly connected between the outer waist muscle of sustained height, right at left and right sides of the fashioned iron
Title is provided with multiple second lacing wires, and second lacing wire is fixedly connected between the interior waist muscle of sustained height and outer waist muscle,
The inner roof wall of the outer stirrup is fixedly connected with multiple glutens, and each gluten front and back is extended and left and right is arranged in parallel,
The inner bottom wall of the outer stirrup is fixedly connected with multiple bottom muscle, and each bottom muscle front and back is extended and left and right is arranged in parallel,
Deformed bar is symmetrically arranged in the middle part of the fashioned iron on the downside of left and right sidewall, be extended before and after the deformed bar and
It is arranged in the interior stirrup, the deformed bar is fixedly connected between corresponding two second lacing wires.
Preferably, the fashioned iron is also H font, T font and any one of cross.
Preferably, the quantity of the interior waist muscle is 16.
Preferably, the quantity of the outer waist muscle is 20.
Preferably, described be fixedly connected is to be fixedly linked by steel wire lashing.
Preferably, the left and right sides of the fashioned iron upper and lower end face is welded with reinforcing rib, extends before and after the reinforcing rib and sets
Set and with the adjacent first lacing wire binding and fixing.
Preferably, the section of the reinforcing rib is T font.
The utility model has the beneficial effects that
The utility model in view of the drawbacks of the prior art, is provided with fashioned iron and deformed bar, has supported the utility model
Structure after-pouring concrete complete concrete beam production, fashioned iron have intrinsic intensity and ductility, before concrete does not pour
Steel construction has just been formd, there is comparable bearing capacity, be able to bear member dead weight and construction loads, bearing capacity is big and rigidity
Greatly；Concrete need not must be waited, which to reach some strength, can continue upper one layer of construction, shorten construction period；Simultaneously with it is pre-
The prestressing force steel and concrete girder construction of stress reinforcing bar and concrete Trinity composition.The utility model can be shortened construction period, with
Steel construction possesses better crack resistance compared to better fire resisting and durability performance is possessed compared with pure steel reinforced concrete structure
Can, and can effectively solve the larger caused amount of deflection problem of the generally existing dead load of pure steel reinforced concrete structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
In figure, 1- gluten；The bottom 2- muscle；3- stirrup；Stirrup in 31-；The outer stirrup of 32-；Waist muscle in 4-；The second lacing wire of 5-；6-
Fashioned iron；61- reinforcing rib；7- deformed bar；The outer waist muscle of 8-；The first lacing wire of 9-.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that
The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This
Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
As shown in Figure 1, large-span prestressed steel and concrete beam, including fashioned iron 6, the section of the fashioned iron 6 be it is I-shaped, it is described
It is extended before and after fashioned iron 6, the left and right sidewall uniform welding at 6 middle part of the fashioned iron has multiple interior waist muscle 4, before the interior waist muscle 4
After be extended, interior about 4 waist muscle described in the same side is arranged in parallel and vertical range between the adjacent interior waist muscle 4 is identical,
The periphery of the fashioned iron 6 is provided with multiple stirrups 3, is arranged in parallel before and after the stirrup, and the stirrup 3 is including interior stirrup 31 and outside
Stirrup 32, the interior stirrup 31 and outer stirrup 32 are rectangle, the left and right sidewall of the interior stirrup 31 and respective heights it is described
Interior waist muscle 4 is fixedly connected, and the periphery of the interior stirrup 31, the inner roof wall of the outer stirrup 32 and institute is arranged in the outer stirrup 32
The outer roof for stating interior stirrup 31 is fixedly connected, and the exterior bottom wall of the inner bottom wall of the outer stirrup 32 and the interior stirrup 31 is fixed to be connected
It connects, the left and right inner wall of the outer stirrup 32 is from top to bottom provided with multiple outer waist muscle 8, and the outer waist muscle 8 is fixedly connected on described
On outer stirrup 32, outer about 8 waist muscle described in the same side is arranged in parallel and vertical range and phase between the adjacent outer waist muscle 8
Vertical range between the adjacent interior waist muscle 4 is equal, and about 6 two sides of fashioned iron are symmetrically arranged with the first lacing wire 9, and described first
Lacing wire 9 is fixedly connected between the outer waist muscle 8 of sustained height, is symmetrically arranged with multiple second at left and right sides of the fashioned iron 6
Lacing wire 5, second lacing wire 5 are fixedly connected between the interior waist muscle 4 of sustained height and outer waist muscle 8, the outer stirrup 32
Inner roof wall be fixedly connected with multiple glutens 1, front and back is extended each gluten 1 and left and right is arranged in parallel, the outer hoop
The inner bottom wall of muscle 32 is fixedly connected with multiple bottom muscle 2, and front and back is extended each bottom muscle 2 and left and right is arranged in parallel, described
It is symmetrically arranged with deformed bar 7 on the downside of 6 middle part left and right sidewall of fashioned iron, is extended and sets before and after the deformed bar 7
It sets in the interior stirrup 31, the deformed bar 7 is fixedly connected between corresponding two second lacing wires 5.
The utility model more has the advantage that reasonable stress, material use compared with prestressed reinforced concrete structure
Sufficiently.Sectional dimension under the same conditions, due to the limitation of the maximum ratio of reinforcement, prestressed reinforced concrete component is difficult to meet
The requirement of building structure.Steel reinforced concrete structure forms entirety, common stress due to armored concrete and fashioned iron.Therefore, fashioned iron
The bearing capacity of concrete component can be higher by one times of reinforced concrete member or more of same section.In other words it is held identical
Under the premise of loading capability, sectional dimension of members can reduce using Steel Reinforced Concrete Members, because without forming " fat beams and columns "
Defect；Easy for construction, construction period is shorter.Fashioned iron is configured in Steel Reinforced Concrete Members, before concrete does not pour just
Steel construction is formd, it has comparable bearing capacity, is able to bear member dead weight and construction loads.Steel Reinforced Concrete Members
Template can be suspended on fashioned iron, it is not necessary to for template-setup support, reduce the amount of labour and material of formwork.Fashioned iron is used simultaneously
Concrete structure is not necessary to that concrete is waited to reach some strength and can continue upper one layer of construction, so than armored concrete knot
Structure shortens the duration；Deformation performance is strong, anti-seismic performance is good.Brittleness of the reinforced concrete structure due to concrete material, spy
It is not when the column stiffness difference in same layer is larger, burden establishes unbalanced or structure there are when biggish eccentric torsion, structure
Part is easy to happen failure by shear.The web that steel reinforced concrete structure relies primarily on configured fashioned iron bears to establish, shear resistance
It is greatly improved compared with concrete structure.External wrapping concrete has stronger effect of contraction to fashioned iron, can prevent the local buckling of fashioned iron,
The overall stiffness and anti-twisting property for improving fashioned iron steel skeleton, make component possess good ductility and energy dissipation capacity.
Further, the fashioned iron 6 be also H font, T font and any one of cross, with intrinsic intensity and
Ductility has just formd steel construction before concrete does not pour, has comparable bearing capacity.
Further, the quantity of the interior waist muscle 4 is 16, improves whole cracking resistance.
Further, the quantity of the outer waist muscle 8 is 20, improves whole cracking resistance.
Further, described be fixedly connected is to be fixedly linked by steel wire lashing, stable connection, and guarantee pours front template
Fixed effect.
Further, the left and right sides of 6 upper and lower end face of fashioned iron is welded with reinforcing rib 61,61 front and back of reinforcing rib
Be extended and with adjacent first lacing wire, 9 binding and fixing, keep the connection of fashioned iron 6 and nonprestressed reinforcement more firm.
Further, the section of the reinforcing rib 61 is T font, good connecting effect.
Working principle of the utility model is:
Production fashioned iron 6 is required according to design drawing, fashioned iron 6 is temporarily fixed between two concrete beams, after being corrected, weldering
Fixed fashioned iron 6 is connect, nonprestressed reinforcement is then successively bound；Waist muscle 4, the interior stirrup 31 of binding and outer stirrup in specially binding
32, outer waist muscle 8, the first lacing wire 9 of binding and the second lacing wire 5, binding bottom muscle 2, binding gluten 1 are bound；And then arrangement prestress
Reinforcing bar 7 requires the absolute altitude unwrapping wire for carrying out deformed bar 7 for positioning deformed bar 7, deformed bar according to design drawing
After 7 bindings, stretching end protruded length should meet tensioning requirement；After having propped up corresponding template, casting concrete waits concrete strength
7 tensioning of deformed bar is carried out after reaching 100% intensity, finally cuts off extra deformed bar 7, carries out prestressed structure sealing off and covering anchorage,
Complete the utility model production.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.
Claims (7)
1. large-span prestressed steel and concrete beam, including fashioned iron (6), it is characterised in that: the section of the fashioned iron (6) be it is I-shaped,
It is extended before and after the fashioned iron (6), the left and right sidewall uniform welding in the middle part of the fashioned iron (6) has multiple interior waist muscle (4), described
It is extended before and after interior waist muscle (4), interior waist muscle (4) described in the same side is arranged in parallel and between the adjacent interior waist muscle (4) up and down
Vertical range it is identical, the periphery of the fashioned iron (6) is provided with multiple stirrups (3), is arranged in parallel before and after the stirrup, the hoop
Muscle (3) includes interior stirrup (31) and outer stirrup (32), and the interior stirrup (31) and outer stirrup (32) are rectangle, the interior stirrup
(31) left and right sidewall is fixedly connected with the interior waist muscle (4) of respective heights, and the outer stirrup (32) is arranged in the interior hoop
The periphery of muscle (31), the inner roof wall of the outer stirrup (32) are fixedly connected with the outer roof of the interior stirrup (31), the outer hoop
The inner bottom wall of muscle (32) is fixedly connected with the exterior bottom wall of the interior stirrup (31), the left and right inner wall of the outer stirrup (32) by up to
Multiple outer waist muscle (8) are arranged with, the outer waist muscle (8) is fixedly connected on the outer stirrup (32), outer waist described in the same side
Muscle (8) is arranged in parallel and between the vertical range between the adjacent outer waist muscle (8) and the adjacent interior waist muscle (4) up and down
Vertical range is equal, and two sides are symmetrically arranged with the first lacing wire (9) fashioned iron (6) up and down, and first lacing wire (9) is fixedly connected
Between the outer waist muscle (8) of sustained height, multiple second lacing wires (5), institute are symmetrically arranged at left and right sides of the fashioned iron (6)
It states the second lacing wire (5) to be fixedly connected between the interior waist muscle (4) of sustained height and outer waist muscle (8), the outer stirrup (32)
Inner roof wall be fixedly connected with multiple glutens (1), each gluten (1) front and back be extended and left and right is arranged in parallel, it is described
The inner bottom wall of outer stirrup (32) is fixedly connected with multiple bottom muscle (2), and each bottom muscle (2) front and back is extended and left and right is flat
Row is arranged, and is symmetrically arranged with deformed bar (7) on the downside of left and right sidewall in the middle part of the fashioned iron (6), the deformed bar (7)
Front and back is extended and is arranged in the interior stirrup (31), and the deformed bar (7), which is fixedly connected on, to be corresponded to described in two
Between second lacing wire (5).
2. large-span prestressed steel and concrete beam according to claim 1, it is characterised in that: the fashioned iron (6) is also H word
Type, T font and any one of cross.
3. large-span prestressed steel and concrete beam according to claim 1, it is characterised in that: the quantity of the interior waist muscle (4)
It is 16.
4. large-span prestressed steel and concrete beam according to claim 1, it is characterised in that: the quantity of the outer waist muscle (8)
It is 20.
5. large-span prestressed steel and concrete beam according to claim 1, it is characterised in that: described be fixedly connected is to pass through
Steel wire lashing is fixedly linked.
6. large-span prestressed steel and concrete beam according to claim 1, it is characterised in that: fashioned iron (6) upper and lower end face
The left and right sides be welded with reinforcing rib (61), be extended before and after the reinforcing rib (61) and with adjacent first lacing wire
(9) binding and fixing.
7. large-span prestressed steel and concrete beam according to claim 6, it is characterised in that: the section of the reinforcing rib (61)
For T font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920134061.5U CN209494127U (en) | 2019-01-26 | 2019-01-26 | Large-span prestressed steel and concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920134061.5U CN209494127U (en) | 2019-01-26 | 2019-01-26 | Large-span prestressed steel and concrete beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209494127U true CN209494127U (en) | 2019-10-15 |
Family
ID=68156034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920134061.5U Active CN209494127U (en) | 2019-01-26 | 2019-01-26 | Large-span prestressed steel and concrete beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209494127U (en) |
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2019
- 2019-01-26 CN CN201920134061.5U patent/CN209494127U/en active Active
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