CN209874049U - Assembled concrete frame beam column connected node - Google Patents
Assembled concrete frame beam column connected node Download PDFInfo
- Publication number
- CN209874049U CN209874049U CN201920453666.0U CN201920453666U CN209874049U CN 209874049 U CN209874049 U CN 209874049U CN 201920453666 U CN201920453666 U CN 201920453666U CN 209874049 U CN209874049 U CN 209874049U
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- column
- precast
- connecting piece
- precast beam
- hole
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Abstract
The utility model provides an assembled concrete frame beam column connected node, including precast beam and precast beam, the connection side of precast beam and precast beam is provided with two bracket posts relatively along the upper and lower direction, and the tip of precast beam stretches into between two bracket posts and connects through first connecting piece detachably, and first connecting piece is perpendicular to the extending direction of precast beam; the end part of the precast beam and the side part of the precast column between the two bracket columns are connected through a second connecting piece, and the second connecting piece is parallel to the extending direction of the precast beam. So, when the beam column suffered destruction under the earthquake load effect, reached the prosthetic effect after shaking through changing first connecting piece, practiced thrift the cost, improved the efficiency of construction, first connecting piece bears as the main part of plasticity destruction structure under the earthquake load effect, and second connecting piece and beam column concrete bear the part as the secondary, set up first connecting piece and be high strength connecting piece, can effectively improve the anti-seismic performance of beam column node.
Description
Technical Field
The utility model belongs to the technical field of the assembly type structure, concretely relates to assembled concrete frame beam column connected node.
Background
The prefabricated concrete structure is an important structural form for realizing the industrialized development mode of buildings, but due to the short development time of the prefabricated concrete structure form, the research on the beam-column joint connection mode of the prefabricated concrete structure at home and abroad is still in the starting stage. The common integral post-pouring type beam-column joint is easy to generate brittle failure under the load action, and meanwhile, the construction progress is slow, and the volume limitation is large.
Most areas of China are in earthquake-resistant defense areas, the reliability of connecting nodes directly influences the application of the prefabricated structure, the existing prefabricated concrete structure is basically connected by welding, but in the earthquake of Tangshan mountain in 1976, the prefabricated structure is seriously damaged and almost completely collapses. In order to improve the seismic performance of the fabricated structure, the connection node structure of the fabricated structure is required to be similar to a cast-in-place structure. Therefore, an assembly type structure form of the cast-in-place node of the prefabricated part is generally adopted. The connecting joint is formed by connecting the precast beam and the steel bars extending out of the precast column at the joint through welding or overlapping, and reproducing the concrete at the joint, thereby forming the cast-in-place reinforced concrete joint. Although the integrity and the seismic performance of the structure form can be compared favorably with those of a cast-in-place structure, the connection node needs cast-in-place concrete, so that the construction period is long, the economic benefit is poor, and the environment is not protected, so that the development and the application of the assembly type structure are seriously influenced.
In the existing cast-in-place reinforced concrete node, the force of the connecting node needs to be directly transmitted through a post-cast concrete area in terms of stress, although a rough surface is arranged on a connecting interface of new and old concrete, the force transmission effect is poor, and the force is mainly transmitted by various connecting ribs and embedded welding parts. Particularly, the reliability of the stress performance of the earthquake-resistant assembled structure is not easy to guarantee under the action of repeated loads, the earthquake-resistant assembled structure is easy to damage under the action of earthquake loads, the earthquake-resistant assembled structure is poor in earthquake resistance and not easy to repair after earthquake, and the application range of the assembled structure in an earthquake region is greatly limited.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
For overcoming the problem that exists in the correlation technique to a certain extent at least, the utility model provides an assembled concrete frame beam column connected node, precast beam and precast post are connected through first connecting piece and second connecting piece, and first connecting piece is detachably connected, when the beam column suffers destruction under the earthquake load effect, reach the prosthetic effect after shaking through changing first connecting piece, the cost is practiced thrift, the efficiency of construction is improved, first connecting piece bears as the main part of plasticity destruction structure under the earthquake load effect, second connecting piece and beam column concrete bear the part as secondary, set up first connecting piece and be high strength connector, can effectively improve the anti-seismic performance of beam column node.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an assembled concrete frame beam column connected node, includes precast beam and precast column, precast column with the connection side of precast beam is provided with two bracket posts along upper and lower direction relatively, connected node still includes:
the end part of the precast beam extends between the two bracket columns and is detachably connected through the first connecting piece, the first connecting piece is perpendicular to the extending direction of the precast beam, and the first connecting piece is a high-strength connecting piece;
and the end part of the precast beam and the side part of the precast column between the two bracket columns are connected through the second connecting piece, and the second connecting piece is parallel to the extending direction of the precast beam.
In the fabricated concrete frame beam-column connection node as described above, preferably, the first connection member is a high-strength bolt and a nut, and the second connection member is a general bolt.
As above assembled concrete frame beam column connected node, preferably, two all be provided with two first through-holes along the fore-and-aft direction on the bracket post, the lateral part of precast beam with be provided with two second through-holes on the corresponding position of bracket post, the bolt that excels in passes first through-hole with pass through behind the second through-hole the nut is fixed.
As above assembled concrete frame beam column connected node, preferably, the precast column with the lateral part of precast beam junction is provided with two third through-holes along upper and lower direction, the tip of precast beam with be provided with two blind holes on the corresponding position of precast column lateral part, just the blind hole extends along precast beam's horizontal direction, and ordinary bolt inserts third through-hole and blind hole after, with the entrance to a cave of third through-hole sealed fixed.
As described above, in the fabricated concrete frame beam-column connection node, preferably, the bracket column and the precast column are of an integrated structure.
In the fabricated concrete frame beam-column connection node as described above, preferably, a steel sleeve is installed in the first through hole.
In the fabricated concrete frame beam-column connection node as described above, preferably, the first through-hole and the second through-hole are reserved by PVC pipes.
As above, in the fabricated concrete frame beam-column connection node, preferably, the third through hole and the blind hole are reserved through PVC pipes.
Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect:
the utility model provides an assembled concrete frame beam column connected node, precast beam and precast post pass through first connecting piece and second connecting piece and connect, and first connecting piece is detachably connected, when the beam column suffers destruction under the earthquake load effect, reach the prosthetic effect after shaking through changing first connecting piece, the cost is saved, the efficiency of construction is improved, first connecting piece bears as the main part of plasticity destruction structure under the earthquake load effect, second connecting piece and beam column concrete bear the part as secondary, set up first connecting piece and be high strength connector, can effectively improve the anti-seismic performance of beam column node.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
Fig. 1 is a schematic perspective view of a connection node of a fabricated concrete frame beam column according to an embodiment of the present invention;
fig. 2 is a front view of a connection node of a fabricated concrete frame beam column in an embodiment of the present invention;
fig. 3 is a top view of a connection node of a fabricated concrete frame beam column in an embodiment of the present invention;
fig. 4 is a right side view of the connection node of the fabricated concrete frame beam column in the embodiment of the present invention.
In the figure: 1-prefabricated column, 2-prefabricated beam, 3-bracket column, 4-high-strength bolt, 5-nut, 6-common bolt, 7-first through hole, 8-third through hole, 10-blind hole and 11-steel sleeve.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The solution of the invention will be described in detail below with reference to the accompanying figures 1-4 and with reference to an embodiment. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
This embodiment provides an assembled concrete frame beam column connected node, as shown in fig. 1, including precast beam 2 and precast column 1, precast column 1 and precast beam 2's the side of being connected is provided with two cow leg posts 3 along upper and lower direction relatively, connected node is still including first connecting piece and second connecting piece, wherein, precast beam 2's tip stretches into between two cow leg posts 3 and connects through first connecting piece detachably, first connecting piece perpendicular to precast beam 2's extending direction, and first connecting piece is the high strength connection spare. The end of the precast beam 2 and the side of the precast column 1 between the two corbel columns 3 are connected by a second connecting member, which is parallel to the extending direction of the precast beam 2.
Preferably, the first connecting member is a high-strength bolt 4 and a nut 5, and the second connecting member is a normal bolt 6. The second connecting piece is used as a connecting component for maintaining the integral stability of the beam-column joint after the first connecting piece is damaged by earthquake load, the earthquake load is used as low-cycle repeated load, the material performance of the high-strength bolt 4 is considered to crush concrete on the beam to cause shear damage, and the plasticity of the common bolt 6 is higher than that of the high-strength bolt 4; therefore, the common bolt 6 is selected at the second connecting piece, so that the beam-column joint can still keep plastic strain instead of brittle failure after the first connecting piece is broken.
Wherein, high strength bolt is high strength bolt, belongs to a standard component. The high-strength bolt is made of 10.9S-grade or 8.8S-grade high-quality alloy structural steel through heat treatment, and the high-strength bolt is made of No. 45 steel, alloy steel (such as 20MnTiB and 35VB) or other high-quality materials and then subjected to heat treatment, so that the strength is improved, and the load borne by the high-strength bolt is larger than that of a common bolt with the same specification.
Of course, the first connecting piece and the second connecting piece can be connecting pieces with other structures as the case may be.
Further, as shown in fig. 1, two first through holes 7 are formed in the two bracket columns 3 along the front-back direction, two second through holes are formed in the corresponding positions of the lateral portions of the precast beams 2 and the bracket columns 3, and the high-strength bolt penetrates through the first through holes 7 and the second through holes and then is fixed through the nut 5.
Because the bolt disect insertion concrete hole has great degree of difficulty, for the convenience of high strength bolt 4's installation, still be provided with steel sleeve 11 in the first through-hole 7, so, reduced the installation degree of difficulty in the work progress, prevent simultaneously that the bolt from warping directly crushing the concrete and taking place inside destruction under the loading effect, played certain prevention effect. Of course, the material of the sleeve may be replaced by PVC (polyvinyl chloride) material or other materials, as the case may be.
The lateral part of prefabricated post 1 and prefabricated roof beam 2 junction is provided with two third through-holes 8 along upper and lower direction, is provided with two blind holes 10 on the tip of prefabricated roof beam 2 and the corresponding position of prefabricated post 1 lateral part, and blind hole 10 extends along the transverse direction of prefabricated roof beam 2, and third through-hole 8 and blind hole 10 are the hole that the concrete beam column set up in advance, and ordinary bolt 6 inserts the back and seal the entrance to a cave of third through-hole 8 can, so, simple to operate, swift.
As shown in fig. 3, the second connecting member in this embodiment is located between two first connecting members, so that construction and fixation are facilitated, and of course, the second connecting member is provided for preventing the after-shock from damaging the overall stability of the beam column after the first connecting member is damaged, so that the position of the second connecting member can be determined according to actual needs.
It should be noted that the bracket column 3 and the prefabricated column 1 are of an integrated structure, so that the strength of the prefabricated column 1 and the bracket column 3 can be ensured, the bearing capacity is enhanced, and the bracket column 3 is perpendicular to the connecting side of the prefabricated column 1.
Further, first through-hole 7, second through-hole, third through-hole 8 and blind hole 10 are all reserved through PVC (Polyvinylchlorid polyvinyl chloride) pipe, and precast beam 2 and precast column 1 carry out the pre-buried and fixed of preformed hole entrance to a cave in the reinforcement, when confirming the position and can not changing, temporarily seal the processing to the entrance to a cave, prevent to pour the in-process, and the concrete gets into the preformed hole, influences the later stage and uses.
The PVC pipeline has light dead weight, corrosion resistance, high compressive strength, high heat resistance, strong toughness and good ductility.
In the following embodiments, the method for integrally installing the beam-column connection node of the fabricated concrete frame will be described by combining different devices or components in the above embodiments:
(1) firstly, the end part of a precast beam 2 extends into a space between an upper bracket column 3 and a lower bracket column 3, a first through hole 7 and a second through hole are matched, then a high-strength bolt 4 penetrates through a steel sleeve 11 to be connected through a bolt, a gasket is additionally arranged, and then the precast beam is fixed through a nut 5;
(2) and after the common bolt 6 is inserted into the third through hole 8 and the blind hole 10, the hole of the third through hole 8 is sealed.
Specifically, in a preferred embodiment of the present invention, first through holes 7 are provided in the front-rear direction on both the two leg columns 3, and second through holes are provided in positions corresponding to the side portions of the precast beam 2 and the leg columns 3 as shown in fig. 1, and preferably, two first through holes 7 are provided in each leg column 3, and the positions and the number of the second through holes in the side portions of the precast beam 2 correspond to the first through holes 7. Similarly, as shown in fig. 4, a third through hole 8 is arranged on the side portion of the joint of the precast column 1 and the precast beam 2, two blind holes 10 are arranged on the corresponding positions of the end portion of the precast beam 2 and the side portion of the precast column 1, and the positions and the number of the blind holes 10 correspond to the third through holes 8. During installation, the first through hole 7 and the second through hole correspond well, then the high-strength bolt 4 penetrates through the high-strength bolt, the high-strength bolt is fixed by the nut 5, the third through hole 8 and the blind hole 10 are holes which are preset in a concrete beam column, and the common bolt 6 is inserted into the holes and then seals the hole of the third through hole 8. Therefore, the installation is convenient and quick, and the time and the cost are saved. Simultaneously, when high strength bolt 4 and nut 5 suffered to destroy, it can to change new high strength bolt 4 and nut 5, so, can prolong precast beam 2 and precast column 1 connected node's life.
It should be noted that the terms "first," "second," "third," and the like, as used herein, are not limited to a specific order, but are used merely to distinguish one element or function from another, and the terms "upper," "lower," "front," "rear," and the like, as used herein, refer to the orientation shown in fig. 1.
The foregoing is considered as illustrative and not restrictive, and all changes coming within the spirit and principles of the invention are intended to be embraced therein.
Claims (8)
1. The utility model provides an assembled concrete frame beam column connected node, includes precast beam and precast column, precast column with the connection side of precast beam is provided with two bracket posts along upper and lower direction relatively, its characterized in that, connected node still includes:
the end part of the precast beam extends between the two bracket columns and is detachably connected through the first connecting piece, the first connecting piece is perpendicular to the extending direction of the precast beam, and the first connecting piece is a high-strength connecting piece;
and the end part of the precast beam and the side part of the precast column between the two bracket columns are connected through the second connecting piece, and the second connecting piece is parallel to the extending direction of the precast beam.
2. An assembled concrete frame beam and column connection node as claimed in claim 1, wherein the first connecting member is a high strength bolt and nut and the second connecting member is a plain bolt.
3. An assembled concrete frame beam column connecting node according to claim 2, wherein two first through holes are formed in each of the two leg columns in a front-rear direction, two second through holes are formed in corresponding positions of the side portions of the precast beam and the leg columns, and the high-strength bolt is fixed by the nut after passing through the first through hole and the second through hole.
4. An assembled concrete frame beam column connection node according to claim 2, wherein the side portion of the precast column where the precast beam is connected is provided with two third through holes in the up-down direction, the end portion of the precast beam is provided with two blind holes at positions corresponding to the side portions of the precast column, the blind holes extend in the transverse direction of the precast beam, and the common bolt is inserted into the third through holes and the blind holes to seal and fix the openings of the third through holes.
5. An assembled concrete frame beam and column connection node in accordance with claim 1, wherein the corbel column is of unitary construction with the precast column.
6. A fabricated concrete frame beam and column connection node in accordance with claim 3, wherein a steel sleeve is installed in said first through hole.
7. An assembled concrete frame beam column connection node in accordance with claim 3, wherein the first through-hole and the second through-hole are reserved by PVC pipes.
8. An assembled concrete frame beam column connection node in accordance with claim 4, wherein the third through hole and the blind hole are each reserved through PVC pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453666.0U CN209874049U (en) | 2019-04-04 | 2019-04-04 | Assembled concrete frame beam column connected node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453666.0U CN209874049U (en) | 2019-04-04 | 2019-04-04 | Assembled concrete frame beam column connected node |
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| Publication Number | Publication Date |
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| CN209874049U true CN209874049U (en) | 2019-12-31 |
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| CN201920453666.0U Expired - Fee Related CN209874049U (en) | 2019-04-04 | 2019-04-04 | Assembled concrete frame beam column connected node |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914591A (en) * | 2019-04-04 | 2019-06-21 | 安徽建筑大学 | A kind of assembly concrete frame beam column connecting node |
| CN113863062A (en) * | 2021-10-29 | 2021-12-31 | 同济大学 | Prefabricated pile slab structure roadbed joint structure of assembling |
| CN114960935A (en) * | 2022-01-13 | 2022-08-30 | 甘肃农业大学 | Post-earthquake function recoverable PC frame beam-column connecting node |
-
2019
- 2019-04-04 CN CN201920453666.0U patent/CN209874049U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914591A (en) * | 2019-04-04 | 2019-06-21 | 安徽建筑大学 | A kind of assembly concrete frame beam column connecting node |
| CN113863062A (en) * | 2021-10-29 | 2021-12-31 | 同济大学 | Prefabricated pile slab structure roadbed joint structure of assembling |
| CN114960935A (en) * | 2022-01-13 | 2022-08-30 | 甘肃农业大学 | Post-earthquake function recoverable PC frame beam-column connecting node |
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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: 20191231 Termination date: 20210404 |