CN216740371U - Large-diameter reinforcement superposed beam structure spliced by inner-concave-angle shear-resistant pieces - Google Patents
Large-diameter reinforcement superposed beam structure spliced by inner-concave-angle shear-resistant pieces Download PDFInfo
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- CN216740371U CN216740371U CN202220202164.2U CN202220202164U CN216740371U CN 216740371 U CN216740371 U CN 216740371U CN 202220202164 U CN202220202164 U CN 202220202164U CN 216740371 U CN216740371 U CN 216740371U
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- precast concrete
- stirrups
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 37
- 239000011178 precast concrete Substances 0.000 claims abstract description 26
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 238000010008 shearing Methods 0.000 claims abstract description 5
- 238000004873 anchoring Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
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Abstract
The utility model belongs to the field of civil engineering, and particularly relates to a large-diameter reinforcement laminated beam structure spliced by inner concave angle shearing resistant pieces. The longitudinal bars of the prefabricated concrete beam are connected in a grouting sleeve mode, the stirrups, the waist bars and the tie bars are connected in a binding mode, and the prefabricated concrete beam and the reinforcing steel bars are connected in a sticking welding anchoring mode. The stressed reinforcement of the superposed beam adopts the large-diameter reinforcement, so that the mechanical connection quantity of the reinforcements in the component is reduced, the row number of longitudinal reinforcements is reduced, and the construction cost and the construction difficulty are effectively reduced; the inner concave angle shear resistant piece increases the bonding area of a cast-in-place and precast concrete interface, avoids quick development of post-cast concrete cracks and brittle fracture of a beam end under the action of shearing force, has fewer steps compared with other stepped shear resistant pieces, is more convenient for formwork support, and is easier to ensure the construction quality.
Description
Technical Field
The utility model belongs to the technical field of civil engineering and construction, and particularly relates to a large-diameter reinforcement superposed beam structure spliced by an inner concave angle shear-resistant piece.
Background
The prefabricated concrete structure has the advantages of high rigidity, good crack resistance, template saving, structural durability, fatigue resistance and seismic resistance improvement, but still has some defects, and the concrete structure is easy to crack under the influence of various factors inside and outside, so that the bearing capacity, durability and waterproof performance are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a large-diameter reinforcement superposed beam structure spliced by inner-corner shear-resistant pieces, which has the following specific scheme:
a large-diameter reinforcement laminated beam structure spliced by an inner concave angle shearing-resistant part comprises a precast concrete beam, longitudinal reinforcements, stirrups, waist reinforcements, tie reinforcements, grouting sleeves, post-cast concrete and cast-in-place floor slabs;
one end of the precast concrete beam is provided with an inner groove type shear resistant part when being precast;
the precast concrete beam is provided with stirrups along the whole length of the beam, and two longitudinal bars are symmetrically arranged at the upper and lower parts of the four corners in each stirrup; the middle parts of the two sides of the stirrups are respectively provided with a waist reinforcement for connecting the stirrups;
the groove-shaped shear resistant pieces in the two precast concrete beams are symmetrically arranged, and longitudinal bars of the two precast concrete beams are fixedly connected through grouting sleeves to form a superposed beam framework;
a row of tie bars are arranged among the hooping bars and used for improving the integrity of the framework of the composite beam to play a role of tie;
a reinforcement cage consisting of longitudinal bars, stirrups, tie bars and waist bars is arranged in the middle of the superposed beam framework, and concrete is poured in a cage cavity formed by the reinforcement cage;
and finally, pouring a floor slab at the upper end of the composite beam framework.
The preferable scheme of the large-diameter reinforcement superposed beam structure spliced by the inner concave angle shear-resistant part is that the longitudinal ribs are large-diameter stressed longitudinal ribs.
The optimized scheme of the large-diameter reinforcement superposed beam structure spliced by the inner-concave-angle shear-resistant pieces is that the stirrups, the waist bars and the tie bars are connected in a binding mode to form a reinforcement cage.
The preferable scheme of the large-diameter reinforcement superposed beam structure spliced by the inner concave angle shear pieces is that the inner groove type shear pieces are two right angles arranged along the height direction of the precast concrete beam, and the thickness of the right angle is 1/3 of the cross section height of the precast concrete beam.
The preferred scheme of the large-diameter reinforcement superposed beam structure spliced by the inner concave angle shear-resistant pieces is that the beam ribs between the precast concrete beam and the longitudinal ribs are connected in a connection mode of welding and anchoring.
The utility model has the beneficial effects that: the utility model provides a large-diameter reinforcement-matched superposed beam structure spliced by inner concave angle shear-resistant pieces, aiming at the defects of the prior precast concrete beam plate structure in China, and under the condition of ensuring the reliable and effective connection between reinforcing steel bars and the cracking property of concrete.
Compared with the prior art, the structure can effectively enlarge the contact area of new and old concrete, effectively bond the new and old concrete, avoid the rapid development of post-cast concrete cracks and the brittle fracture of a beam end under the action of shearing force, and has the advantages of simple formwork support and guaranteed construction quality. Meanwhile, large-diameter steel bars are configured to serve as stressed longitudinal bars, so that the using amount of the steel bars can be greatly reduced, and the construction difficulty is reduced. The healthy and green development of the fabricated concrete structure is promoted.
Drawings
FIG. 1 is a perspective view of a large-diameter reinforcement composite beam spliced by an inner corner shear resistant part;
FIG. 2 is a top view of a large-diameter reinforced composite beam structure spliced by an inner corner shear resistant part;
FIG. 3 is a template diagram of a large-diameter reinforced composite beam structure spliced by an inner corner shear resistant part;
FIG. 4 is a front perspective view of a large diameter reinforced composite beam structure spliced by an inner corner shear;
FIG. 5 is a structural reinforcement arrangement diagram of a large-diameter reinforcement arrangement superposed beam spliced by an inner corner shear resistant part;
FIG. 6 is a detailed view of a large-diameter reinforcement laminated beam structure shear spliced by the inner corner shear.
1-in the figure: the method comprises the following steps of prefabricating a concrete beam, 2-longitudinal ribs, 3-stirrups, 4-waist ribs, 5-tie bars, 6-grouting sleeves, 7-post-pouring concrete, 8-cast-in-place floor slabs and 9-inner groove type shear resistant parts.
Detailed Description
As shown in fig. 1-6, a large-diameter reinforcement-distribution superposed beam structure spliced by an inner-concave-angle shear-resistant part comprises a precast concrete beam 1, longitudinal reinforcements 2, stirrups 3, waist reinforcements 4, tie reinforcements 5, grouting sleeves 6, post-cast concrete 7 and a cast-in-place floor slab 8;
one end of the precast concrete beam 1 is provided with an inner groove type shear resistant part 9 during prefabrication;
the precast concrete beam 1 is provided with stirrups 3 along the whole length of the beam, and two longitudinal bars 2 are symmetrically arranged at the upper and lower four corners in the stirrups 3; the middle parts of the two sides of the stirrup 3 are respectively provided with a waist bar 4 for connecting the stirrups 3;
the groove-shaped shear resistant pieces 9 in the two precast concrete beams 1 are symmetrically arranged, and the longitudinal bars 2 of the two precast concrete beams 1 are connected and fixed through the grouting sleeves 6 to form a superposed beam framework;
a row of tie bars 5 are arranged among the stirrups 3 and used for improving the integrity of the framework of the composite beam to play a role of tie;
a reinforcement cage consisting of longitudinal bars 2, stirrups 3, tie bars 5 and waist bars 4 is arranged in the middle of the superposed beam framework, and concrete 7 is poured in a cage cavity formed by the reinforcement cage;
and finally, the upper end of the beam framework is superposed to form a floor slab 8.
The longitudinal ribs 2 are large-diameter stressed longitudinal ribs.
The stirrups 3, the waist bars 4 and the tie bars 5 are connected in a binding mode to form a steel reinforcement framework.
The shear resistant member 9 of interior recess type is for two right angles along the 1 direction of height setting of precast concrete roof beam, and the thickness of right angle is 1/3 of precast concrete roof beam 1 cross section height.
The beam rib connection between the precast concrete beam 1 and the longitudinal rib 2 adopts a connection mode of sticking, welding and anchoring.
Claims (5)
1. The utility model provides a major diameter arrangement of reinforcement superimposed beam structure that interior fillet shear member spliced which characterized in that: the cast-in-place concrete beam comprises a precast concrete beam, longitudinal bars, stirrups, waist bars, tie bars, grouting sleeves, post-cast concrete and cast-in-place floor slabs;
one end of the precast concrete beam is provided with an inner groove type shear resistant part when being precast;
the precast concrete beam is provided with stirrups along the whole length of the beam, and two longitudinal bars are symmetrically arranged at the upper and lower parts of the four corners in each stirrup; the middle parts of the two sides of the stirrups are respectively provided with a waist reinforcement for connecting the stirrups;
the groove-shaped shear resistant pieces in the two precast concrete beams are symmetrically arranged, and longitudinal bars of the two precast concrete beams are fixedly connected through grouting sleeves to form a superposed beam framework;
a row of tie bars are arranged among the hooping bars and used for improving the integrity of the framework of the composite beam to play a role of tie;
a reinforcement cage consisting of longitudinal bars, stirrups, tie bars and waist bars is arranged in the middle of the superposed beam framework, and concrete is poured in a cage cavity formed by the reinforcement cage;
and finally, the upper end of the beam framework is superposed to form the floor slab.
2. The inside corner shear splicing large diameter reinforced composite beam structure according to claim 1, wherein: the longitudinal ribs are large-diameter stressed longitudinal ribs.
3. The inside corner shear splicing large diameter reinforced composite beam structure according to claim 1, wherein: the stirrups, the waist bars and the tie bars are connected in a binding mode to form the steel reinforcement framework.
4. The inside corner shear splicing large diameter reinforced composite beam structure according to claim 1, wherein: the shearing resistant piece of interior recess type is for two right angles along the precast concrete beam direction of height setting, and the thickness of right angle is the 1/3 of precast concrete beam cross section height.
5. The inside corner shear splicing large diameter reinforced composite beam structure according to claim 1, wherein: the beam rib connection between the precast concrete beam and the longitudinal rib adopts a connection mode of welding and anchoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220202164.2U CN216740371U (en) | 2022-01-25 | 2022-01-25 | Large-diameter reinforcement superposed beam structure spliced by inner-concave-angle shear-resistant pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220202164.2U CN216740371U (en) | 2022-01-25 | 2022-01-25 | Large-diameter reinforcement superposed beam structure spliced by inner-concave-angle shear-resistant pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216740371U true CN216740371U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220202164.2U Expired - Fee Related CN216740371U (en) | 2022-01-25 | 2022-01-25 | Large-diameter reinforcement superposed beam structure spliced by inner-concave-angle shear-resistant pieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216740371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116677138A (en) * | 2023-07-29 | 2023-09-01 | 福建建工装配式建筑研究院有限公司 | Superposed beam structure based on precast beam plate units and construction method thereof |
-
2022
- 2022-01-25 CN CN202220202164.2U patent/CN216740371U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116677138A (en) * | 2023-07-29 | 2023-09-01 | 福建建工装配式建筑研究院有限公司 | Superposed beam structure based on precast beam plate units and construction method thereof |
| CN116677138B (en) * | 2023-07-29 | 2023-10-31 | 福建建工装配式建筑研究院有限公司 | Superposed beam structure based on precast beam plate units and construction method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220614 |