CN211080767U - Superposed beam, superposed beam and cast-in-place column connecting node - Google Patents
Superposed beam, superposed beam and cast-in-place column connecting node Download PDFInfo
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- CN211080767U CN211080767U CN201921318589.4U CN201921318589U CN211080767U CN 211080767 U CN211080767 U CN 211080767U CN 201921318589 U CN201921318589 U CN 201921318589U CN 211080767 U CN211080767 U CN 211080767U
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Abstract
The utility model discloses a superposed beam, a superposed beam and a cast-in-place column connecting node, wherein the superposed beam and the cast-in-place column connecting node comprise a superposed beam, a connecting piece and a cast-in-place column positioned below the superposed beam, the lower surface of the superposed beam is connected with the upper surface of the cast-in-place column, a sleeve is pre-embedded at the bottom of the superposed beam, the lower end of the sleeve is level with the lower surface of the superposed beam, and the sleeve is provided with an internal thread; one end of the connecting piece is in threaded connection with the sleeve, and the other end of the connecting piece is positioned in the cast-in-place column. The utility model discloses still relate to superposed beams and cast-in-place post connected node's construction method. The utility model discloses can reduce the degree of difficulty and the manufacturing cost of engineering production coincide roof beam, convenient transportation promotes the conveying efficiency of coincide roof beam simultaneously. When the connecting joint of the laminated beam and the cast-in-place column is constructed, the vertical steel bars of the cast-in-place column are in lap joint with the connecting piece anchored in the beam bottom sleeve, construction operation is facilitated, the steel bar binding difficulty of the cast-in-place column is reduced, and construction progress is accelerated.
Description
Technical Field
The utility model relates to a superposed beam, superposed beam and cast-in-place post connected node belongs to assembly type structure technical field.
Background
In the fabricated building, under the prefabricated beam, a cast-in-place constructional column exists, and the steel bar of the cast-in-place constructional column needs to extend into the beam for anchoring (or the steel bar in the prefabricated beam is anchored into the cast-in-place constructional column) so as to meet the requirement of building construction specifications. One way is to pre-embed 4 (or more) constructional columns to extend out of the steel reinforcement when prefabricating the plant to produce the bottom of the composite beam. On one hand, the precast beam (superposed beam) can only be produced in a lying mode, and the bottom of the precast beam cannot face downwards during production, so that the production mode of the precast beam is limited; on the other hand, in order to enable the connecting reinforcing steel bars to extend out of the production template, holes for penetrating the connecting reinforcing steel bars must be formed in the template, the cost of the mold is increased, measures for preventing slurry leakage must be adopted, and the improvement of the production efficiency of the precast beam is not facilitated. After the precast beam leaves the factory, the extending steel bars at the bottom of the precast beam occupy the loading space of the vehicle, thereby greatly reducing the transportation efficiency and increasing the transportation cost. Therefore, the reserved extended steel bars at the bottom of the precast beam are not beneficial to factory production and transportation. The other mode is that the bottom of the superposed beam is not reserved with the extending steel bars, bar planting treatment is directly carried out during site construction, the quality of the planted bars is determined to a large extent according to experience and quality consciousness of operators, the site workload and the construction cost are increased, the construction quality is difficult to guarantee, and the project progress is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem that exists among the prior art, avoid planting the muscle to the bottom of superposed beam and handle, also do not stretch out the pre-buried processing of reinforcing bar to the bottom of superposed beam simultaneously to reduce the production degree of difficulty of superposed beam in mill, manufacturing cost and cost of transportation, the utility model provides a superposed beam, superposed beam and cast-in-place post connected node. The specific technical scheme is as follows.
A composite beam comprising longitudinal rebars and a composite beam stirrup welded and/or lashed to the longitudinal rebars, a portion of the composite beam stirrup protruding above an upper surface of a prefabricated portion of the composite beam, the composite beam comprising: the bottom of the prefabricated part is embedded with a sleeve, the lower end of the sleeve is flush with the lower surface of the prefabricated part, and the sleeve is provided with internal threads.
Further, the upper end of the sleeve is connected with the longitudinal steel bars and/or the superposed beam stirrups.
Based on same utility model the design, the utility model discloses still relate to a superposed beam and cast-in-place post connected node, concrete technical scheme as follows.
A connection node of a superposed beam and a cast-in-place column is characterized by comprising the superposed beam, a connecting piece and the cast-in-place column positioned below the superposed beam, wherein the lower surface of the superposed beam is connected with the upper surface of the cast-in-place column, a sleeve is embedded in the bottom of the superposed beam, the lower end of the sleeve is flush with the lower surface of the superposed beam, and the sleeve is provided with an internal thread; one end of the connecting piece is in threaded connection with the sleeve, and the other end of the connecting piece is located in the cast-in-place column.
Further, the connecting piece is a screw rod or a connecting steel bar with at least one end provided with external threads.
The construction method of the connection node of the composite beam and the cast-in-place column mainly comprises the following steps:
1) after the superposed beam is hoisted to the installation position, the sleeve of the superposed beam corresponds to the top position of the cast-in-place column, and one end of the connecting piece is in threaded connection with the sleeve;
2) installing vertical steel bars of the cast-in-situ column and cast-in-situ column stirrups;
3) installing a template of a cast-in-place column, and pouring cast-in-place column concrete to enable the other end of the connecting piece to be positioned in the cast-in-place column;
wherein, the sequences of the step 1) and the step 2) can be interchanged.
Further, in the construction method, a step of connecting the connecting member to a vertical steel bar of the cast-in-place column in a lap joint manner is further provided before the step 3). Therefore, the connection reliability of the superposed beam and the cast-in-place column is improved.
Adopt the utility model discloses a superimposed beam, superimposed beam and cast-in-place post connected node and construction method thereof can reduce the degree of difficulty and the manufacturing cost of engineering production superimposed beam, and convenient transportation promotes the conveying efficiency of superimposed beam simultaneously. When the connecting joint of the laminated beam and the cast-in-place column is constructed, the vertical steel bars of the cast-in-place column are in lap joint with the connecting piece anchored in the beam bottom sleeve, construction operation is facilitated, the steel bar binding difficulty of the cast-in-place column is reduced, and construction progress is accelerated.
Drawings
Fig. 1 is a schematic view of the connection node of the composite beam and the cast-in-place column of the present invention (the concrete of the cast-in-place column is not shown);
fig. 2 is an enlarged view of the area a in fig. 1.
In the figure: the prefabricated wall comprises a composite beam 1, longitudinal steel bars 11, a composite beam stirrup 12, connecting steel bars 2, a cast-in-place column 3, vertical steel bars 31, cast-in-place column stirrups 32 and a prefabricated wall 4.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-2, the connection node of the superposed beam and the cast-in-place column comprises a superposed beam 1, a connection steel bar 2 and a cast-in-place column 3 positioned below the superposed beam 1, wherein the lower surface of the superposed beam 1 is connected with the upper surface of the cast-in-place column 3, a sleeve is embedded in the bottom of the superposed beam 1, the lower end of the sleeve is flush with the lower surface of the superposed beam 1, and the sleeve is provided with an internal thread; one end of the connecting steel bar 2 is connected with the sleeve through threads, the other end of the connecting steel bar is positioned in the cast-in-situ column 3, and prefabricated walls 4 can be installed below the superposed beam 1 and on two sides of the cast-in-situ column 3. Wherein, the connecting steel bar 2 can be replaced by a screw rod or a screw rod and other parts with external threads. The up and down direction herein means the up and down direction of the composite beam when the composite beam is in a use state in a building structure.
The composite beam 1 comprises longitudinal steel bars 11 and a composite beam stirrup 12 welded and/or bound with the longitudinal steel bars 11, wherein one part of the composite beam stirrup 12 protrudes out of the upper surface of the prefabricated part of the composite beam, and the sleeve is positioned at the bottom of the prefabricated part. The position that is used for connecting cast-in-place post is pre-buried to have the internal screw thread sleeve at the prefabricated part bottom of composite beam when the composite beam is produced in mill, and the sleeve is fixed only need to open a hole in composite beam mould bottom, and positioning bolt and pre-buried muffjoint, positioning bolt's screw thread head are located outside the mould, and the sleeve is located within the mould, forms pre-buried sleeve after pouring concrete in the mould and solidifying dismantles positioning bolt and template. The sleeve pre-embedding operation is simple and convenient, the positioning is accurate, the slurry leakage is prevented, the number and the spacing of the sleeves are pre-embedded according to the size of a cast-in-place column, and the requirements of construction specifications are required to be met; compared with the prior art in which the extended steel bars are directly embedded at the bottom of the composite beam, the sleeve embedding mode greatly reduces the production difficulty. Preferably, in order to improve the connection reliability of the embedded sleeve, the upper end of the sleeve may be fixedly connected to the longitudinal steel bar and/or the stirrup of the composite beam, for example, the upper end of the sleeve is provided with an anchoring member perpendicular to the axial direction of the sleeve, and the anchoring member is bound or welded to the longitudinal steel bar and/or the stirrup of the composite beam.
The construction method of the connection node of the superposed beam and the cast-in-place column mainly comprises the following steps:
1) after the superposed beam 1 is hoisted to the installation position, the sleeve of the superposed beam 1 corresponds to the top position of the cast-in-place column 3, and one end of the connecting steel bar 2 is in threaded connection with the sleeve;
2) installing (binding) a vertical steel bar 31 of the cast-in-situ column 3 and a cast-in-situ column stirrup 32;
3) installing a template of the cast-in-place column 3, and pouring cast-in-place column concrete to enable the other end (lower end) of the connecting steel bar 2 to be positioned in the cast-in-place column 3; wherein the order of step 1) and step 2) can be interchanged.
Preferably, in the construction method, a step of overlapping and connecting the connecting steel bar 2 with the vertical steel bar 31 of the cast-in-place column 3 is further provided before the step 3), which is beneficial to improving the connection reliability of the composite beam 1 and the cast-in-place column 3.
After the laminated beam is produced in a factory and transported to a construction site, the bottom of the laminated beam is reserved with a sleeve which is parallel to the bottom of the beam, so that transportation and site installation construction cannot be influenced, the construction site screws the reserved connecting steel bars into the sleeve at the position of a cast-in-place constructional column, then binds and overlaps the lower cast-in-place column steel bars, and the cast-in-place column is connected with the bottom of the laminated beam.
The embodiments of the present invention have been described above with reference to the accompanying drawings, and features of the embodiments and examples of the present invention may be combined with each other without conflict. The present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and the scope of the present invention, which is encompassed by the present invention.
Claims (4)
1. A laminated beam comprising longitudinal rebars (11) and a laminated beam stirrup (12) welded and/or lashed to said longitudinal rebars (11), a portion of said laminated beam stirrup (12) protruding above an upper surface of a prefabricated portion of said laminated beam, characterized in that: the bottom of the prefabricated part is embedded with a sleeve, the lower end of the sleeve is flush with the lower surface of the prefabricated part, and the sleeve is provided with internal threads.
2. A composite beam according to claim 1, characterised in that the upper end of the sleeve is connected to the longitudinal reinforcement (11) and/or the composite beam stirrup (12).
3. The connecting node of the superposed beam and the cast-in-place column is characterized by comprising a superposed beam (1), a connecting piece and a cast-in-place column (3) positioned below the superposed beam (1), wherein the lower surface of the superposed beam (1) is connected with the upper surface of the cast-in-place column (3), a sleeve is embedded in the bottom of the superposed beam (1), the lower end of the sleeve is flush with the lower surface of the superposed beam (1), and the sleeve is provided with an internal thread; one end of the connecting piece is in threaded connection with the sleeve, and the other end of the connecting piece is positioned in the cast-in-place column (3).
4. A composite beam and cast-in-place column connecting node according to claim 3, characterized in that the connecting member is a screw or a connecting reinforcement (2) with at least one end provided with external threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921318589.4U CN211080767U (en) | 2019-08-14 | 2019-08-14 | Superposed beam, superposed beam and cast-in-place column connecting node |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921318589.4U CN211080767U (en) | 2019-08-14 | 2019-08-14 | Superposed beam, superposed beam and cast-in-place column connecting node |
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| CN211080767U true CN211080767U (en) | 2020-07-24 |
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| CN201921318589.4U Active CN211080767U (en) | 2019-08-14 | 2019-08-14 | Superposed beam, superposed beam and cast-in-place column connecting node |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409710A (en) * | 2019-08-14 | 2019-11-05 | 长沙远大住宅工业（江苏）有限公司 | A kind of composite beam, composite beam and cast-in-place column connected node and its construction method |
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2019
- 2019-08-14 CN CN201921318589.4U patent/CN211080767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409710A (en) * | 2019-08-14 | 2019-11-05 | 长沙远大住宅工业（江苏）有限公司 | A kind of composite beam, composite beam and cast-in-place column connected node and its construction method |
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