CN220167297U - Precast beam reinforcing steel bar anchoring structure - Google Patents
Precast beam reinforcing steel bar anchoring structure Download PDFInfo
- Publication number
- CN220167297U CN220167297U CN202321675863.XU CN202321675863U CN220167297U CN 220167297 U CN220167297 U CN 220167297U CN 202321675863 U CN202321675863 U CN 202321675863U CN 220167297 U CN220167297 U CN 220167297U
- Authority
- CN
- China
- Prior art keywords
- precast beam
- steel bar
- steel bars
- steel
- precast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 27
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 230000002787 reinforcement Effects 0.000 claims abstract description 24
- 239000004567 concrete Substances 0.000 abstract description 15
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 239000011178 precast concrete Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Abstract
The utility model provides a precast beam reinforcing bar anchor structure, includes the steel reinforcement cage that a plurality of steel bars of precast beam lower part along its equidistant arrangement of width direction, the beam column node seat department of stand set up, the length direction of steel bar is unanimous with the length direction of precast beam, the steel bar stretches out from the outer terminal surface of precast beam to fixedly connected with limit stop at the outer end of steel bar, the precast beam support on beam column node seat, its steel bar stretches into in the steel reinforcement cage; according to the utility model, after concrete is poured at the beam column node, the limit stop at the outer end of the steel bar can form an anchoring point in the beam column node, so that the anchoring firmness of the steel bar is improved, the problem of low anchoring quality caused by insufficient extension length of the longitudinal bar in the existing precast beam is effectively solved, and the safety risk of loosening the longitudinal bar is avoided.
Description
Technical Field
The utility model relates to the field of building structures, in particular to a precast beam steel bar anchoring structure.
Background
The prefabricated concrete structure has the advantages of easy quality control, high construction speed, improvement of construction site environment, higher strength of concrete, reduction of self weight of the structure and the like, so that the prefabricated concrete structure is widely applied to building structures. The existing common connection mode of precast concrete nodes is wet connection, wherein the wet connection is mainly to arrange cast-in-place concrete at the connection part, and the key technology of the wet connection is to ensure that the stressed longitudinal ribs in the precast concrete beam are effectively anchored into the cast nodes; in the practical application process, because the size of the pouring node is limited, the extension length of the longitudinal bar in the precast concrete beam is limited, the length of the longitudinal bar in the concrete is limited, the anchoring is not firm enough, and the risk of loosening the longitudinal bar is easy to occur.
Disclosure of Invention
In order to solve the problems, the utility model provides a precast beam steel bar anchoring structure.
The technical scheme of the utility model is as follows: the utility model provides a precast beam reinforcing bar anchor structure, includes the inside steel reinforcement that arranges along its width direction equidistant of precast beam, the beam column node seat department of stand sets up the steel reinforcement cage, the length direction of steel reinforcement is unanimous with the length direction of precast beam, the one end of steel reinforcement stretches out from the outer terminal surface of precast beam, the other end of steel reinforcement extends to the tip of precast beam, the terminal surface of steel reinforcement and precast beam is perpendicular to be connected with limit stop at the outer end fixedly connected with of steel reinforcement; the precast beam is supported on the beam column node seat, the steel bars of the precast beam extend into the steel bar cage, and the limit stop is also positioned in the steel bar cage.
Preferably, the steel bars on the precast beam comprise a first steel bar and a second steel bar, the first steel bar and the second steel bar are distributed in the precast beam at intervals, the intervals between the first steel bar and the second steel bar are the same, and the length of the first steel bar is greater than that of the second steel bar.
Preferably, the limit stop is nut-shaped, a threaded hole is formed in the limit stop, a threaded section is formed in the outer end of the reinforcing steel bar, and the limit stop is connected with the reinforcing steel bar through threads.
Preferably, a plurality of trapezoid grooves or square grooves penetrating through two side surfaces of the precast beam are uniformly formed in the end surface of the precast beam.
Preferably, the precast beam comprises a main precast beam and a secondary precast beam, two supports A are arranged on two sides of the surface of the beam column node seat, two supports B are arranged on the other two sides of the surface of the beam column node seat, the end part of the main precast beam is supported on the supports A, and the supports of the secondary precast beam are supported on the supports B.
Preferably, the first support and the second support are square cushioning supports, and the first support is higher than the second support.
The beneficial technical effects of the utility model are as follows: according to the utility model, the limit stop is arranged at the outer end of the steel bar of the precast beam, and the steel bar and the limit stop are inserted into the steel bar cage at the beam column node, so that after concrete is poured at the beam column node, the limit stop at the outer end of the steel bar can form an anchoring point inside the beam column node, the anchoring firmness of the steel bar is improved, the problem of low anchoring quality caused by insufficient extension length of the longitudinal bar in the existing precast beam is effectively solved, and the safety risk of loosening the longitudinal bar is avoided.
Drawings
FIG. 1 is a schematic view of the front view of a precast beam of the present utility model;
FIG. 2 is a schematic top view of the precast beam of the present utility model;
FIG. 3 is a schematic view of a precast beam connected within a reinforcement cage at a beam column node seat;
fig. 4 is a schematic structural view of four precast beams connected in a reinforcement cage at a beam column node seat;
fig. 5 is a side view of a prefabricated Liang Zailiang column node base (reinforcement cage not shown).
In the figure, 11, precast beams, 111, first and 112, second and 113, limit stops, 114, trapezoid grooves, 13, beam column node seats, 131, first and 132, second and 133, and reinforcement cages.
Detailed Description
Referring to fig. 1-5 of the specification, a steel bar anchoring structure of a precast beam 11 includes a plurality of steel bars arranged at equal intervals along the width direction of the precast beam 11, and a steel bar cage 133 arranged at a beam column node seat 13 of a column, wherein the length direction of the steel bars is consistent with the length direction of the precast beam 11, the steel bars are longitudinal ribs inside the precast beam 11, extend out from the outer end surface of the precast beam 11, are used for extending into the steel bar cage 133 to perform concrete pouring anchoring, and are fixedly connected with limit stops 113 at the outer ends of the steel bars; the precast beam 11 is supported on the beam column node seat 13, the steel bars of the precast beam extend into the steel reinforcement cage 133, and the limit stop 113 is also positioned in the steel reinforcement cage 133.
The reinforcing steel bars on the precast beam 11 comprise a first reinforcing steel bar 111 and a second reinforcing steel bar 112, the first reinforcing steel bar 111 and the second reinforcing steel bar 112 are distributed in the precast beam 11 at intervals, the length of the first reinforcing steel bar 111 is greater than that of the second reinforcing steel bar 112, and the purpose of the arrangement is to enable the limit stop 113 to be distributed in concrete in a staggered manner, so that the stress points of anchoring are more uniform, and the anchoring effect is better.
The limit stop 113 is nut-shaped, the limit stop 113 and the steel bars are connected through threads, and due to the fact that the number of the steel bars is large, the connection mode can improve the connection speed of the limit stop 113 to the outer ends of the steel bars, and finally the limit stop 113 and the steel bars are poured in concrete at the same time.
The end face of the precast beam 11 is uniformly provided with a plurality of trapezoid grooves 114 which penetrate through two side faces of the precast beam 11, and the trapezoid grooves 114 are designed to be used for improving the contact area between the end face of the precast beam 11 and the poured concrete and improving the connection strength.
The precast beam 11 comprises a main precast beam 11 and a secondary precast beam 11, two first supports 131 are arranged on two sides of the surface of the beam column node seat 13, two second supports 132 are arranged on the other two sides, the end part of the main precast beam 11 is supported on the first supports 131, and the supports of the secondary precast beam 11 are supported on the second supports 132.
The first support 131 and the second support 132 are cushioning supports, the cushioning supports can absorb vibration force generated by the precast beams 11, an effect of protecting an anchoring structure is achieved, the first support 131 is higher than the second support 132, and the height difference is used for staggering reinforcing steel bars on adjacent precast beams 11 and avoiding collision.
After concrete is poured into the reinforcement cage 133 at the beam column node seat 13 of the reinforcement anchoring structure of the precast beam 11, the reinforcement and the limit stop 113 in the precast beam 11 are simultaneously poured into the concrete, the limit stop 113 forms an anchoring point in the concrete, and the limit stop 113 is distributed in the concrete in a staggered manner, so that the anchored stress points are more uniform, the anchoring effect is better, the firmness of reinforcement anchoring is improved, and the problem that the anchoring quality is low due to insufficient extension length of longitudinal ribs in the existing precast beam 11 is effectively solved.
Claims (6)
1. A precast beam reinforcing steel bar anchoring structure, characterized by:
the steel bar cage is arranged at the beam column node seat of the upright column, the length direction of the steel bars is consistent with the length direction of the precast beam, the steel bars extend out from the outer end face of the precast beam, and a limit stop is fixedly connected to the outer end of the steel bars; the precast beam is supported on the beam column node seat, and the steel bars of the precast beam extend into the steel bar cage.
2. The precast beam reinforcement anchoring structure according to claim 1, characterized in that: the steel bars on the precast beam comprise steel bars A and steel bars B, the steel bars A and the steel bars B are distributed in the precast beam at intervals, and the length of the steel bars A is greater than that of the steel bars B.
3. The precast beam reinforcement anchoring structure according to claim 1, characterized in that: the limit stop is nut-shaped, and the limit stop is connected with the steel bars through threads.
4. The precast beam reinforcement anchoring structure according to claim 1, characterized in that: the end face of the precast beam is uniformly provided with a plurality of trapezoid grooves which penetrate through two side faces of the precast beam.
5. The precast beam reinforcement anchoring structure according to claim 1, characterized in that: the precast beam comprises a main precast beam and a secondary precast beam, two first supports are arranged on two sides of the surface of the beam column node seat, two second supports are arranged on the other two sides of the surface of the beam column node seat, the end part of the main precast beam is supported on the first supports, and the supports of the secondary precast beam are supported on the second supports.
6. The precast beam reinforcement anchoring structure according to claim 5, wherein: the first support and the second support are cushioning supports, and the first support is higher than the second support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321675863.XU CN220167297U (en) | 2023-06-29 | 2023-06-29 | Precast beam reinforcing steel bar anchoring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321675863.XU CN220167297U (en) | 2023-06-29 | 2023-06-29 | Precast beam reinforcing steel bar anchoring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220167297U true CN220167297U (en) | 2023-12-12 |
Family
ID=89067547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321675863.XU Active CN220167297U (en) | 2023-06-29 | 2023-06-29 | Precast beam reinforcing steel bar anchoring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220167297U (en) |
-
2023
- 2023-06-29 CN CN202321675863.XU patent/CN220167297U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1333141C (en) | Combined concrete shear wall with built-in eccentric supporting steel truss and its making method | |
| CN102418425B (en) | Prefabrication integral casting building structure system with cast-in-site haunched beams, and construction method for prefabrication integral casting building structure system | |
| CN111501530B (en) | Vibration-damping locking type device for preventing box girder from falling | |
| CN201794217U (en) | Pretensioned prestressing reinforced concrete precast beam | |
| CN201785940U (en) | Reinforced concrete prefabricated beam | |
| CN112814225A (en) | Plug-pull longitudinal rib type sound insulation steel-concrete combined shear wall and assembling method thereof | |
| CN220167297U (en) | Precast beam reinforcing steel bar anchoring structure | |
| CN107938884B (en) | Self-resetting frame-shear wall structure for reinforcing seismic damage frame and construction method | |
| CN204780635U (en) | Super wide nonprismatic continuous beam 0# piece concreties and relieves construction structures | |
| CN208105283U (en) | A kind of polygon foundation pit supporting construction | |
| CN107859354B (en) | Self-resetting frame-shear wall structure for reinforcing existing frame and construction method | |
| CN212714329U (en) | Joint bar top-connected type composite foundation structure | |
| CN215167210U (en) | Local connection and anchor effect reinforced steel concrete column | |
| CN212175846U (en) | Connecting structure of precast concrete column and precast base | |
| CN201794215U (en) | Pretensioning method prestress reinforced concrete prefabricated beam | |
| CN108330988A (en) | A kind of polygon foundation pit supporting construction and construction method | |
| CN114215089A (en) | Shaped steel supporting structure for supporting raft plate reinforcing steel bars | |
| CN201843257U (en) | Pre-tensioning pre-stressed reinforced concrete precast beam | |
| CN102418402B (en) | Pre-tensioned prestressed reinforced concrete precast beam | |
| CN201794216U (en) | Reinforced concrete prefabricated beam pre-stressed by pre-tensioning method | |
| CN213267473U (en) | Combined beam structure | |
| CN205501789U (en) | Broad width box girder bridge girder bottom plate structure | |
| CN216552390U (en) | Post-tensioning steel rib prestressed column base | |
| CN216949406U (en) | Support structure of centerline foot beam in shaft on outer side of building body | |
| CN215716568U (en) | Section steel concrete column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |