CN212641739U - Assembly integral primary and secondary beam U-shaped steel bar connection node - Google Patents
Assembly integral primary and secondary beam U-shaped steel bar connection node Download PDFInfo
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- CN212641739U CN212641739U CN202021072705.1U CN202021072705U CN212641739U CN 212641739 U CN212641739 U CN 212641739U CN 202021072705 U CN202021072705 U CN 202021072705U CN 212641739 U CN212641739 U CN 212641739U
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Abstract
The utility model provides an assemble integral primary and secondary roof beam U-shaped reinforcing bar connected node, belongs to assembly type building primary and secondary roof beam and connects technical field. A plurality of straight thread sleeves which are horizontally arranged are respectively pre-buried in the prefabricated main beam and the prefabricated secondary beam, one end of each of the plurality of straight thread sleeves which are pre-buried in the prefabricated main beam is positioned on any one of two opposite side surfaces of the prefabricated main beam, the plurality of straight thread sleeves which are pre-buried in the prefabricated secondary beam are communicated with the end surface of the prefabricated secondary beam, which faces the prefabricated main beam, the end part of each of the plurality of straight thread sleeves is positioned on the outer wall of the horizontal steel bar of each L-shaped anchor bar, each of the plurality of straight thread sleeves is in threaded connection with the corresponding horizontal steel bar of the L-shaped anchor bar, the plurality of L-shaped anchor bars form a U-shaped steel bar connection node at the connection node of the prefabricated main beam and the prefabricated secondary beam, and post-cast concrete is poured at the connection node of the U. The utility model is used for the connection of primary and secondary roof beam among the building field.
Description
Technical Field
The utility model belongs to the technical field of assembled building primary and secondary roof beam is connected, concretely relates to assemble integral primary and secondary roof beam U-shaped steel bar connected node.
Background
The fabricated integrated frame structure is one of the common structural forms of a fabricated building. In addition to beam-column nodal connections, primary and secondary beam connections are a concern.
In the existing connection mode of the primary and secondary beams, one part of the external extending steel bars at the joint positions of the primary and secondary beams are integrally prefabricated at one time and transported to the site for installation, so that the prefabricated parts occupy certain surrounding space and are not beneficial to transportation and storage; one part of primary and secondary beam nodes are disconnected, concrete is poured after reinforcing steel bars are bound at the site node positions, the node positions are connected by adopting straight anchor reinforcing steel bars or connected by adopting grouting sleeves, and insufficient bending resistance bearing capacity or difficult guarantee of construction quality can be generated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an assemble integral primary and secondary roof beam U-shaped reinforcing bar connected node for solving the above-mentioned problem that prior art exists.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
the U-shaped steel bar connecting node of the assembled integral primary and secondary beam comprises a prefabricated primary beam and a prefabricated secondary beam, and further comprises a plurality of L-shaped anchor bars and a plurality of straight thread sleeves; the prefabricated main beam and the prefabricated secondary beam are internally and respectively embedded with a plurality of straight thread sleeves which are horizontally arranged, one end of each of the straight thread sleeves which are embedded in the prefabricated main beam is positioned on any one of two opposite side surfaces of the prefabricated main beam, the straight thread sleeves which are embedded in the prefabricated secondary beam are communicated with the end surface of the prefabricated secondary beam, which faces the prefabricated main beam, the end part of each of the horizontal steel bar outer walls of the L-shaped anchor bars is provided with a thread, each of the straight thread sleeves is in threaded connection with the corresponding horizontal steel bar of the L-shaped anchor bar, the L-shaped anchor bars form a U-shaped steel bar connection node at the connection node of the prefabricated main beam and the prefabricated secondary beam, and after-pouring concrete is poured at the connection node of the U-shaped steel bar, the prefabricated main beam and the prefabricated secondary beam are manufactured into a whole.
The utility model discloses beneficial effect for prior art is:
1. the utility model provides a pair of assemble integral primary and secondary roof beam U-shaped steel bar connected node is through pre-buried in prefabricated girder and prefabricated secondary roof beam with straight thread sleeve to utilize L shape dowel and straight thread sleeve threaded connection at the scene, make a plurality of L shape dowel constitute U-shaped steel bar connected node at prefabricated girder and prefabricated secondary roof beam connected node, not only convenient transportation and deposit, the on-the-spot convenient assembly of while has improved the efficiency of construction.
2. And post-cast concrete is cast in situ at the joint of the U-shaped steel bar so as to make the prefabricated main beam and the prefabricated secondary beam into a whole. The anchoring performance of the steel bar can be improved, and meanwhile, the bending resistance bearing capacity of the joint is improved by the U-shaped steel bar connecting joint, and the construction quality is improved.
Drawings
FIG. 1 is a three-dimensional view of a U-shaped steel bar connection node of an assembled integral primary and secondary beam of the present invention;
fig. 2 is a front view of the U-shaped reinforcing bar connecting joint of the integral primary and secondary beam of the present invention;
fig. 3 is the utility model discloses an assemble integral primary and secondary roof beam U-shaped steel bar connected node's top view.
The names and reference numbers of the components referred to in the above figures are as follows:
1-L-shaped anchor bars; 2-a straight threaded sleeve; 3-post-pouring concrete; 4-prefabricating a secondary beam; 5, prefabricating a main beam; 6-key groove.
Detailed Description
The first embodiment is as follows: as shown in fig. 1 to 3, the present embodiment describes an assembled integral primary and secondary beam U-shaped steel bar connection node, which includes a prefabricated primary beam 5 and a prefabricated secondary beam 4, and further includes a plurality of L-shaped anchor bars 1 and a plurality of straight threaded sleeves 2; a plurality of straight thread sleeves 2 which are horizontally arranged are respectively embedded in the prefabricated main beam 5 and the prefabricated secondary beam 4, one end of each of the plurality of straight thread sleeves 2 embedded in the prefabricated main beam 5 is positioned on any one of two opposite side surfaces of the prefabricated main beam 5, the plurality of straight thread sleeves 2 embedded in the prefabricated secondary beam 4 are communicated with the end surface, facing the prefabricated main beam 5, of the prefabricated secondary beam 4, threads are arranged at the end part of each of the outer walls of the horizontal steel bars of the L-shaped anchor bars 1, each of the plurality of straight thread sleeves 2 is in threaded connection with the corresponding horizontal steel bar of the L-shaped anchor bars 1, the plurality of L-shaped anchor bars 1 form a U-shaped steel bar connection node at the connection node of the prefabricated main beam 5 and the prefabricated secondary beam 4, and concrete 3 is poured at the connection node of the U-shaped steel bar so that the prefabricated main beam 5 and the prefabricated secondary beam 4 are made into a whole.
Further, as shown in fig. 2 and 3, a plurality of key slots 6 are respectively formed in two opposite side surfaces of the prefabricated main beam 5 and an end surface of the prefabricated secondary beam 4 facing the prefabricated main beam 5, and post-cast concrete 3 is poured in the U-shaped steel bar connection node and the key slots 6. The key groove 6 provides partial shear-resistant bearing capacity in the integral components of the prefabricated main beam and the prefabricated secondary beam, and the size of the key groove 6 is determined through calculation;
wherein: vuERepresenting the shear bearing capacity of the vertical joint of the beam end; f. ofc1Showing the designed value of the axial compressive strength of post-cast concrete; f. ofcShowing the designed value of the compressive strength of the concrete axle center of the prefabricated part; a. thekRepresenting the cross-sectional area of the root of each keyway; a. thesdRepresents the area of all the steel bars vertically passing through the joint surface (i.e. the beam end surface); f. ofyThe design value of the tensile strength of the steel bar passing through the joint surface (namely the beam end surface) vertically is shown.
The utility model discloses a theory of operation is: the utility model provides an assemble integral primary and secondary roof beam U-shaped reinforcing bar connected node improves efficiency of construction and construction quality. The method comprises the steps that straight thread sleeves 2 are pre-embedded in the prefabricated main beam and the prefabricated secondary beam, and the number and the positions of the pre-embedded straight thread sleeves 2 are determined by the number and the positions of L-shaped anchor bars 1 at nodes. After the main and secondary prefabricated beams are placed in place, the L-shaped anchor bars 1 at the two sides of the main prefabricated beam 5 and the end part of the secondary prefabricated beam 4 are installed, a U-shaped steel bar connecting node is formed at the connecting node, and post-cast concrete is poured to enable the main and secondary prefabricated beams to form a whole. The anchoring performance of the L-shaped anchor bars can be improved, and meanwhile, the bending resistance bearing capacity of the joint is also improved by the U-shaped steel bar connecting joint.
Claims (2)
1. The utility model provides an assemble integral primary and secondary roof beam U-shaped reinforcing bar connected node, includes prefabricated girder (5) and prefabricated secondary beam (4), its characterized in that: the U-shaped steel bar connecting joint of the assembled integral primary and secondary beam further comprises a plurality of L-shaped anchor bars (1) and a plurality of straight threaded sleeves (2); a plurality of straight thread sleeves (2) which are horizontally arranged are respectively embedded in the prefabricated main beam (5) and the prefabricated secondary beam (4), one end of each of the plurality of straight thread sleeves (2) embedded in the prefabricated main beam (5) is positioned on any one of two opposite side surfaces of the prefabricated main beam (5), the plurality of straight thread sleeves (2) embedded in the prefabricated secondary beam (4) are communicated with the end surface of the prefabricated secondary beam (4) facing the prefabricated main beam (5), the end part of each L-shaped anchor bar (1) positioned on the outer wall of the horizontal steel bar is provided with a thread, each straight thread sleeve (2) is in threaded connection with the corresponding horizontal steel bar of the L-shaped anchor bar (1), the plurality of L-shaped anchor bars (1) form a U-shaped steel bar connecting node at the connecting joint of the prefabricated main beam (5) and the prefabricated secondary beam (4), and concrete (3) is poured at the U-shaped steel bar connecting node after pouring, the prefabricated main beam (5) and the prefabricated secondary beam (4) are made into a whole.
2. The U-shaped steel bar connecting joint of the assembled integral primary and secondary beams as claimed in claim 1, is characterized in that: and a plurality of key grooves (6) are formed in two opposite side surfaces of the prefabricated main beam (5) and the end surface of the prefabricated secondary beam (4) facing the prefabricated main beam (5), and post-cast concrete (3) is poured at the joint of the U-shaped steel bars and in the key grooves (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021072705.1U CN212641739U (en) | 2020-06-11 | 2020-06-11 | Assembly integral primary and secondary beam U-shaped steel bar connection node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021072705.1U CN212641739U (en) | 2020-06-11 | 2020-06-11 | Assembly integral primary and secondary beam U-shaped steel bar connection node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212641739U true CN212641739U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021072705.1U Active CN212641739U (en) | 2020-06-11 | 2020-06-11 | Assembly integral primary and secondary beam U-shaped steel bar connection node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212641739U (en) |
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2020
- 2020-06-11 CN CN202021072705.1U patent/CN212641739U/en active Active
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