CN214116980U - Dry-type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement - Google Patents
Dry-type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement Download PDFInfo
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- CN214116980U CN214116980U CN202022458129.0U CN202022458129U CN214116980U CN 214116980 U CN214116980 U CN 214116980U CN 202022458129 U CN202022458129 U CN 202022458129U CN 214116980 U CN214116980 U CN 214116980U
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 23
- 238000007596 consolidation process Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000004378 blood-retinal barrier Effects 0.000 description 22
- 239000004567 concrete Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 230000035939 shock Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The dry type connection assembly type reinforced concrete frame structure is characterized in that the prefabricated beam-column combined member (1), the prefabricated beam (2) and the beam-column combined member (1) are connected through the dry type connection node (6) to form the assembly type reinforced concrete frame structure, and the anti-buckling support (5) is configured on the basis. The invention solves the defect that the dry type connecting node in the existing assembly type damping structure is easy to damage under strong earthquake, fully exerts the bearing capacity of the anti-buckling support of the damping component and the energy consumption capacity in the earthquake, and simultaneously, the anti-buckling support of the damping component can be replaced after the earthquake, so the proposed structure has the advantages of easy assembly, replacement, good earthquake resistance and the like.
Description
Technical Field
The invention relates to a dry-type connection assembly type reinforced concrete frame structure with obliquely and X-shaped BRBs (reinforced concrete) arranged, which is applied to an assembly type building structure and belongs to the field of civil engineering.
Background
The fabricated building has the advantages of high production efficiency, high building quality, small environmental influence and the like, and is widely concerned and applied. China is at the junction of two major earthquake zones in the world, namely the Pacific earthquake zone and the Eurasian earthquake zone, the earthquake activities are frequent, and the earthquake disasters are serious. The fabricated concrete frame structure is widely applied to cities in China, and once the building structure collapses due to earthquake action, huge economical and casualty injuries and deaths can be caused, and negative influences which are difficult to estimate are brought to the society. Therefore, it is very important to accurately and effectively improve the anti-seismic performance of the fabricated concrete frame structure.
The connecting nodes are fundamentally different from cast-in-place structures in the assembled structure, and are roughly divided into equivalent cast-in-place nodes and assembled nodes according to the equivalent degree of the stress performance of the cast-in-place nodes. The equivalent cast-in-place node can reach the integrality, rigidity and bearing capacity consistent with cast-in-place concrete node, and the structure of adopting the equivalent cast-in-place node can reach or exceed the seismic performance of corresponding cast-in-place node. The assembled nodes have great mechanical property difference, the rigidity of the nodes is lower than that of cast-in-situ or equivalent cast-in-situ nodes, and the anti-seismic performance of the structure adopting the assembled nodes is insufficient. Fabricated nodes include mainly welded connections, bolted connections, pinned connections, etc., which are also called dry connections because they do not require field wet work.
In order to improve the seismic performance of the dry-type connection assembly type frame structure, CN109868897A proposes an assembly type concrete frame structure in which buckling-restrained braces need to be laid based on the interlayer rigidity, in this structure, the connection between the precast beam and the precast column is dry-type connection, and the failure may occur in advance under the conditions of heavy earthquake and extra-heavy earthquake, so that the set damping component (buckling-restrained brace (BRB) or viscous damping brace) cannot further function. Although in CN109868897A SMA smart concrete or ECC material is used for the expected plastic hinge area of beam and column members and SMA smart concrete is used for the node area of beam and column ends, this measure will increase the construction cost. CN208380222U has proposed articulated assembled concrete shock attenuation frame construction system in roof beam, and beam column prefabricated component still suggests to be dry-type connection, does not solve the rigidity problem of beam, post, shock attenuation component three node, and beam column node can have the problem that destroys in advance and BRB can not further play a role under the macroseism. Although CN208380222U proposes to perform integral prefabrication in a beam-column joint area with a large bending moment, due to the complex structural damage evolution under the action of strong shock, if the integral prefabrication cannot be performed in the joint area with the large bending moment, the beam-column joint is damaged in advance, and the BRB cannot further function. In addition, if the column and the half-span beam are prefabricated together in advance, reinforcement calculation and hoisting are not facilitated when the beam span is large. In order to overcome various defects, the invention provides a dry type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement, so that the seismic performance of the structure is improved, and the seismic robustness of the structure is ensured.
Disclosure of Invention
The invention aims to provide a dry type connection assembly type reinforced concrete frame structure with BRB obliquely and in X-shaped arrangement, which solves the defect that a dry type connection node in the existing assembly type damping structure is easy to damage under strong earthquake, fully exerts the bearing capacity of a damping component BRB and the energy consumption capacity in the earthquake, and simultaneously, the damping component BRB can be replaced after the earthquake and has functional recoverability, so that the proposed structure has the advantages of easy assembly, replacement, good earthquake resistance and the like, and can promote the further development of the assembly type concrete structure.
The technical scheme of the invention is as follows: a dry-type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement is formed by combining a prefabricated beam-column combined member, a prefabricated beam member, a BRB, a high-strength bolt and an embedded part; the reinforced concrete frame structure comprises a precast beam-column combined member and a precast beam member, wherein the precast beam-column combined member and the beam member comprise concrete and reinforcing steel bars; the height of the precast beam-column combined member is the structural layer height, and a section of beam is precast at the midpoint of the layer height to form a beam-column combined precast member, wherein the length of the section of beam is a; the length of the precast beam component is the structural span l minus twice a; the BRB comprises a core plate unit, a filling material, a sleeve and a joint part; the BRB can be connected by welding a node plate and a beam column, connecting a pin shaft, connecting a bolt and the like; the gusset plate is connected with the beam column through the embedded part in a welding mode.
The precast beam and the column member are connected in a dry type connection mode; the dry connection is a bolt connection, but is not limited thereto, and may further include a welding connection, a pin connection, and the like.
The embedded parts are embedded steel connecting pieces on the beam side and the column side, and the embedded parts can be inserted rib type embedded parts, split type embedded parts and the like.
Compared with the prior art, the invention has the advantages and beneficial effects that:
1. the beam-column combined prefabricated member is formed by prefabricating beam-column connecting parts together in advance at the intersection of the beam, the column and the BRB, wherein the beam-column is in a rigid connection mode, and the rigid joint of the beam-column can ensure that the joint is not damaged under strong shock and ensure that the BRB can fully play a role;
2. all components are in dry connection, no field wet operation is needed, assembly is easy, and construction progress is accelerated. After the earthquake, both the BRB and the precast beam end can be replaced;
3. the BRB can be flexibly arranged and is not limited by the height of the structural layer and the self weight of the member. When the layer height is large, the BRB can be arranged into an X shape according to the earthquake-proof requirement.
Description of the drawings:
FIG. 1 is a schematic structural view of a dry-type connection assembly reinforced concrete frame with obliquely arranged buckling restrained braces;
FIG. 2 is a schematic view of the connection of the buckling restrained brace and the prefabricated beam-column assembly;
FIG. 3 is a schematic structural view of a dry-type connection assembly type reinforced concrete frame with an X-shaped arrangement of buckling restrained braces;
FIG. 4 is a schematic view of the connection configuration of the X-shaped arrangement of buckling restrained braces;
in the attached drawings 1-4, 1 is a prefabricated beam-column combined member; 2, a precast beam; 3, an embedded part connecting plate; 4 is the end part of the buckling restrained brace; 5 is an anti-buckling support; 6 is a dry type connecting node; 7, pre-buried joint bars; 8, pre-buried welding plates; and 9 is an anti-buckling support connecting plate.
The specific implementation mode is as follows:
in order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in figures 1-4, the invention provides a dry-type connection assembly type reinforced concrete frame structure with buckling-restrained braces obliquely and arranged in an X shape, which is formed by a prefabricated beam-column combined member 1, a prefabricated beam 2, an embedded part connecting plate 3, a buckling-restrained brace end part 4, a buckling-restrained brace 5, a dry-type connecting node 6, an embedded joint bar 7, an embedded welding plate 8 and a buckling-restrained brace connecting plate 9.
The anti-buckling support is connected with the prefabricated beam-column combined component 1 in the dry type connection assembly type reinforced concrete frame structure in the oblique and X-shaped arrangement mode, the anti-buckling support 5 is connected with the prefabricated beam-column combined component 1, and beam-column nodes at the connecting positions are consolidation nodes.
The prefabricated part connecting joint is in dry connection, such as in the form of bolts, welding, pins and the like, and construction progress can be accelerated.
And the buckling-restrained brace 5 is connected with the prefabricated beam-column combined member 1 through an embedded part connecting plate 3 and an embedded welding plate 8.
The buckling-restrained brace is arranged in an oblique and X-shaped mode, and is suitable for different anti-seismic requirements.
The buckling restrained brace is arranged in an X shape, and a plurality of buckling restrained brace connecting nodes of the buckling restrained brace are connected by adopting the middle buckling restrained brace connecting plate 9 in the figure 4.
The embodiment of the dry-type connection assembly type reinforced concrete frame structure with the buckling restrained braces obliquely and arranged in the X shape comprises the following steps:
(1) the precast beam-column combined member 1 and the precast beam 2 are precast in a precast plant and are hoisted to a construction site for splicing. The precast beam-column combined member 1 and the precast beam 2 are spliced in a construction site by a dry connection method, such as a bolt connection shown in fig. 1, but not limited thereto, and other connection methods may be adopted.
(2) The precast beam and column combined member 1 is pre-embedded with pre-embedded joint bars 7 and pre-embedded welding plates 8, wherein the pre-embedded joint bars 7 are welded on the same side of the pre-embedded welding plates 8. The buckling restrained brace is manufactured in a factory and is installed in the assembled reinforced concrete frame structure through the embedded part connecting plate 3 on the spot.
According to the dry-type connection assembly type reinforced concrete frame structure with the buckling restrained braces obliquely and arranged in the X-shaped mode, response and damage under the earthquake action are reduced by arranging the buckling restrained braces. The beam column joint is in a rigid connection mode, and the beam column rigid joint can ensure that the joint is not damaged in advance under strong earthquake, so that the BRB can fully play a role. All components are in dry connection, no field wet operation is needed, assembly is easy, and construction progress is accelerated. After the earthquake, the BRB and the precast beam end can be replaced. The BRB can be flexibly arranged and is not limited by the height of the structural layer and the self weight of the member. When the layer height is large, the BRBs can be arranged in an X-shape as desired.
Claims (4)
1. The BRB oblique and X-shaped arranged dry type connecting assembly type reinforced concrete frame structure is formed by combining a prefabricated beam-column combined member (1), a prefabricated beam (2), an embedded part connecting plate (3), a buckling-restrained brace end part (4), a buckling-restrained brace (5) and a dry type connecting node (6), and is characterized in that the prefabricated beam-column combined member (1), the prefabricated beam (2) and the beam-column combined member (1) are connected through the dry type connecting node (6) to form an assembly type reinforced concrete frame structure, the buckling-restrained brace (5) is configured on the basis, and the buckling-restrained brace (5) is integrally combined with the assembly type reinforced concrete frame structure through the embedded part connecting plate (3) and the buckling-restrained brace end part (4).
2. A dry-type jointed assembled reinforced concrete frame structure of BRB diagonal and X-type layout as claimed in claim 1, wherein: the buckling-restrained brace is connected with the prefabricated beam-column combined member, and the beam-column joint at the joint is a consolidation joint.
3. A dry-type jointed assembled reinforced concrete frame structure of BRB diagonal and X-type layout as claimed in claim 1, wherein: the buckling-restrained brace is connected with the prefabricated beam-column combined member through the embedded part.
4. A dry-type jointed assembled reinforced concrete frame structure of BRB diagonal and X-type layout as claimed in claim 1, wherein: the buckling-restrained brace is arranged in an oblique and X-shaped mode, and is suitable for different anti-seismic requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022458129.0U CN214116980U (en) | 2020-10-22 | 2020-10-22 | Dry-type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022458129.0U CN214116980U (en) | 2020-10-22 | 2020-10-22 | Dry-type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement |
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| CN214116980U true CN214116980U (en) | 2021-09-03 |
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| CN202022458129.0U Expired - Fee Related CN214116980U (en) | 2020-10-22 | 2020-10-22 | Dry-type connection assembly type reinforced concrete frame structure with BRB obliquely and X-shaped arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898232A (en) * | 2021-09-24 | 2022-01-07 | 北京工业大学 | Reinforced concrete frame structure |
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- 2020-10-22 CN CN202022458129.0U patent/CN214116980U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898232A (en) * | 2021-09-24 | 2022-01-07 | 北京工业大学 | Reinforced concrete frame structure |
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Granted publication date: 20210903 |