CN214940977U - Novel prefabricated prestressed concrete frame structure that area supported - Google Patents
Novel prefabricated prestressed concrete frame structure that area supported Download PDFInfo
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- CN214940977U CN214940977U CN202120865789.2U CN202120865789U CN214940977U CN 214940977 U CN214940977 U CN 214940977U CN 202120865789 U CN202120865789 U CN 202120865789U CN 214940977 U CN214940977 U CN 214940977U
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- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 28
- 210000002435 tendon Anatomy 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000004570 mortar (masonry) Substances 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 18
- 239000004567 concrete Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model belongs to the building structure field relates to a novel precast prestressed concrete frame structure that area supported, including precast column and precast beam, a plurality of prefabricated frames are constituteed to this precast column and precast beam, and precast column and precast beam pass through the prestressing tendons and connect, are provided with buckling restrained brace piece along the diagonal among one of them at least one prefabricated frame, and this buckling restrained brace piece's both ends are provided with a right angle support piece respectively, are provided with prefabricated bracket on the precast column, and the both ends of every precast beam set up respectively on prefabricated bracket and right angle support piece or set up on two prefabricated brackets. The utility model discloses a fixed precast beam post of form of post-tensioned prestressing force, this kind of dry-type connected mode simple structure, construction speed is fast, can effectually shorten construction cycle. And the utility model discloses set up the buckling restrained diagonal bracing in the node position, improved the structural stability of assembled frame greatly, ensured that the antidetonation bearing capacity does not reduce, ensured the security of structure.
Description
Technical Field
The utility model belongs to the building structure field relates to an assembled prestressed concrete frame construction, especially relates to a novel precast prestressed concrete frame construction that area supported.
Background
In recent years, the prefabricated concrete building is highly valued and widely popularized in China, and compared with the traditional cast-in-place concrete structure, the prefabricated concrete building has the advantages of small pollution, short construction period, less labor demand and the like, and belongs to a green low-carbon building. High-rise residential buildings in many areas have now begun to be constructed using fabricated technology. And the frame structures of multi-storey office buildings and the like can also be built by using the assembly type technology. At present, the structure form of the assembly type frame structure is mainly that a beam column is split into a plurality of components according to floors and is transported to a site for hoisting after being prefabricated in a factory. The beam column node is in a cast-in-place mode. There are a number of disadvantages with this construction.
For example, the chinese patent application discloses a method for pouring concrete at a transfer floor beam-column joint and a medium used therefor [ publication No.: CN105464219A ], when concrete pouring of a conversion layer beam-column node is carried out, a medium is fixed in each beam template close to a column, then high-grade concrete is used for carrying out column pouring, and low-grade concrete is used for carrying out beam pouring; the high-grade concrete of the column is isolated from the low-grade concrete of the beam through the isolation, so that excessive high-strength concrete is prevented from flowing into the beam.
The technical scheme still adopts a cast-in-place mode, and the cast-in-place of the node position can bring construction waste to a construction site, pollute the environment and be not beneficial to the popularization of green construction; and the construction efficiency is low, the cast-in-place of the node needs maintenance, the construction period can be greatly increased in the time, and the adverse effect is generated on the control of the construction cost.
At present, some building engineering uses precast columns and precast beams to form beam-column joint structures, for example, chinese patent application discloses an assembled integral beam-column joint structure with additional closed connecting steel bars and a construction method [ publication number: CN109057046A ], comprising a precast beam component and a precast column component, wherein the end part of the precast beam component is provided with a groove, and a beam end steel bar is arranged in the groove; the upper ends of the prefabricated column components are provided with brackets, one end of each prefabricated beam component is lapped on the bracket, a closed reinforcing bar ring is arranged between the end parts of the adjacent prefabricated beam components, and fine stone concrete is poured in the grooves of the prefabricated beam components, the closed reinforcing bar rings and the connecting nodes of the prefabricated column components arranged up and down.
The problem that the node structure of the prefabricated member is not reliable enough in the technical scheme is still existed, and the research and development of a novel assembly type frame structure form which is high in construction speed and safe and reliable in structure is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The application aims to solve the problems and provide a novel prefabricated prestressed concrete frame structure with a support;
in order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a novel precast prestressed concrete frame structure that area supported is creatively provided, including precast column and precast beam, a plurality of prefabricated frames of this precast column and precast beam constitution, precast column and precast beam pass through the prestressing tendons and connect, are provided with buckling restrained brace spare along the diagonal among one of them at least one prefabricated frame, and this buckling restrained brace spare's both ends are provided with a right angle support piece respectively, are provided with prefabricated bracket on the precast column, and the both ends of every precast beam set up respectively on prefabricated bracket and right angle support piece or set up on two prefabricated brackets.
In the above-mentioned novel precast prestressed concrete frame structure with support, the right angle support piece is an equilateral angle steel, and the right angle support piece is connected with the precast beam and the precast column through a high-strength bolt.
In the novel precast prestressed concrete frame structure with the support, the inner side of the right-angle support is provided with the reinforcing rib plate.
In the novel precast prestressed concrete frame structure with the support, bonding gaps are formed between the two ends of the precast beam and the precast columns, and bonding mortar is filled in the bonding gaps; the width of the bonding gap is 1.5-2.5 cm.
In foretell novel precast prestressed concrete frame structure who supports in area, the both ends downside of precast beam is equipped with first prefabricated groove respectively, prefabricated bracket top is close to prefabricated post one side and is equipped with the second prefabricated groove with first prefabricated groove intercommunication, it has bonding mortar to fill in first prefabricated groove and the second prefabricated groove.
In the above-mentioned novel precast prestressed concrete frame structure with a brace, the depth of the first precast groove gradually increases from the inside to the outside, and the depth of the second precast groove gradually increases from the inside to the outside.
In the novel prefabricated prestressed concrete frame structure with the support, the buckling-restrained diagonal bracing pieces are arranged in the plurality of prefabricated frames in the transverse row at intervals, and the two adjacent buckling-restrained diagonal bracing pieces are arranged along the crossed diagonal line.
In the novel prefabricated prestressed concrete frame structure with the supports, the buckling-restrained brace is arranged in each prefabricated frame on the odd-numbered rows, the buckling-restrained brace is not arranged in each prefabricated frame on the even-numbered rows, and two adjacent buckling-restrained braces in the prefabricated frames on the odd-numbered rows are arranged along the crossed diagonal line.
In the above-mentioned novel precast prestressed concrete frame structure with a brace, the buckling restrained brace is a profile steel brace, a steel structure brace having a hydraulic damper, or a steel structure brace having a viscoelastic damper.
In the novel precast prestressed concrete frame structure with the support, the metal corrugated pipe is embedded in the center of the precast beam along the axial direction, the prestressed tendons are arranged in the metal corrugated pipe in a penetrating mode, and the precast beams which are transversely arranged are connected through the prestressed tendons.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a fixed precast beam post of form of post-tensioned prestressing force, this kind of dry-type connected mode simple structure, construction speed is fast, can effectually shorten construction cycle. And the utility model discloses set up the buckling restrained diagonal bracing in the node position, improved the structural stability of assembled frame greatly, ensured that the antidetonation bearing capacity does not reduce, ensured the security of structure.
The bonding gap provides convenience for hoisting the precast beam and the precast column. The joints are bonded through bonding mortar, so that the connection between the prefabricated beam and the prefabricated column and between the prefabricated beam and the right-angle supporting piece can be reinforced, the matching of all parts at the positions of the joints is enhanced, and the installation is convenient.
Drawings
Fig. 1 is a structural view of a novel precast prestressed concrete frame provided by the present application.
FIG. 2 is a block diagram of an anti-buckling cross brace provided herein.
Fig. 3 is a partial cross-sectional view provided by the present application.
Fig. 4 is a partial block diagram provided in the present application.
In the figure, a precast column 1, a precast beam 2, a first precast groove 20, a prestressed tendon 3, an anti-buckling inclined strut 4, a right-angle strut 5, a fixed seat 51, a rotating shaft 52, a nut 53, a precast corbel 6, a second precast groove 60, a reinforcing rib plate 7, bonding mortar 8 and a metal corrugated pipe 9 are shown.
Detailed Description
Further illustrated by the following specific examples;
as shown in figure 1, a novel precast prestressed concrete frame structure of area support, including precast column 1 and precast beam 2, a plurality of precast frames are constituteed with precast beam 2 to this precast column 1, precast column 1 and precast beam 2 pass through prestressing tendons 3 and connect, wherein are provided with buckling-restrained brace piece 4 along the diagonal in at least one precast frame, this buckling-restrained brace piece 4's both ends are provided with a right angle support piece 5 respectively, be provided with prefabricated bracket 6 on the precast column 1, the both ends of every precast beam 2 set up respectively on prefabricated bracket 6 and right angle support piece 5 or set up on two prefabricated brackets 6. The utility model discloses a dry-type connected mode simple structure, construction speed is fast, can effectually shorten construction cycle. And the utility model discloses set up buckling restrained brace 4 in the node position, improved the structural stability of assembled frame greatly, ensured that the antidetonation bearing capacity does not reduce, ensured the security of structure.
As shown in fig. 2 and 4, the right-angle supporting member 5 is an equilateral angle steel, and the right-angle supporting member 5 is connected with the precast girders 2 and the precast columns 1 by high-strength bolts. The right-angle support 5 is provided on the inside with a reinforcing floor 7.
Specifically, the inner side of the right-angle strut member 5 is provided with a fixing seat 51, two ends of the buckling-restrained brace member 4 are respectively provided with a fixing hole, the fixing hole and the fixing seat 51 are connected through a rotating shaft 52, and two ends of the rotating shaft 52 are fixed to the nut 53 through threaded connection. The flexion-prevention cross brace 4 is rotatably connected to the right angle brace 5. The reinforcing rib plates 7 are arranged on two sides of the fixed seat 51, and the reinforcing rib plates 7 are in a fan shape or a symmetrical polygon shape, so that a good supporting purpose is achieved.
As shown in fig. 1, bonding gaps are arranged between two ends of the precast beam 2 and the precast column 1, and bonding mortar 8 is filled in the bonding gaps; the width of the bonding gap is 1.5-2.5 cm. The bonding gap provides convenience for hoisting the precast beam 2 and the precast column 1.
As shown in fig. 1 and 3, the lower sides of the two ends of the precast beam 2 are respectively provided with a first precast groove 20, a second precast groove 60 communicated with the first precast groove 20 is arranged above the precast corbel 6 and close to one side of the precast column 1, and the first precast groove 20 and the second precast groove 60 are filled with bonding mortar 8. The bonding gap is connected to first pregroove 20 and second pregroove 60 by bonding mortar 8 to form a reliable connection.
The depth of the first pregroove 20 increases gradually from the inner side to the outer side and the depth of the second pregroove 60 increases gradually from the inner side to the outer side. Which contributes to filling the entire first pregroove 20 and the second pregroove 60 with bonding mortar 8 from the outside to the inside.
And at the joint position where the precast beam 2 is connected with the precast corbel 6, the bonding mortar 8 is integrally filled in the bonding gap, the first precast groove 20 and the second precast groove 60.
At the joint position where the precast girders 2 are connected to the right-angle brace 5, the bonding mortar 8 is integrally filled in the bonding gap and the first precast groove 20. And the bottom of the first pregroove 20 is closed by a right-angle support 5.
The joints are bonded by the bonding mortar 8, so that the connection between the precast beam 2 and the precast column 1 and the right-angle strut member 5 can be reinforced, and the matching of all parts at the joint positions can be enhanced.
For the mechanical property of the whole structure, the buckling-restrained diagonal bracing pieces 4 are arranged in the plurality of prefabricated frames in the transverse row at intervals, and the two adjacent buckling-restrained diagonal bracing pieces 4 are arranged along the crossed diagonal line. And each prefabricated frame on the odd-numbered columns is provided with an anti-buckling inclined support member 4, each prefabricated frame on the even-numbered columns is not provided with an anti-buckling inclined support member 4, and two adjacent anti-buckling inclined support members 4 in the prefabricated frames on the odd-numbered columns are arranged along crossed diagonal lines.
Buckling restrained brace 4 is a profiled steel brace, a steel structural brace with a hydraulic damper, or a steel structural brace with a viscoelastic damper.
The hydraulic damper can freely adjust the feeding speed of the cylinder from low speed to high speed within a desired range. Viscoelastic dampers, also known as viscoelastic dampers, are stiff viscous damping devices. The hydraulic damper and the viscoelastic damper are commercially available products, and the structures thereof are not described in detail herein.
The center of the precast beam 2 is embedded with a metal corrugated pipe 9 along the axial direction, the prestressed tendons 3 penetrate through the metal corrugated pipe 9, and the precast beams 2 which are arranged along the transverse direction are connected through the prestressed tendons 3. The prestressed reinforcement 3 is a prestressed steel strand, a prestressed steel strand or a prestressed carbon fiber reinforced plastic reinforcement. The precast column 1 is transversely provided with a pore channel corresponding to the installation position of the precast beam 2, and the prestressed tendon 3 is installed with the precast column 1 through the pore channel. And both ends of the tendon 3 are anchored to the outermost precast column 1 by anchors.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms precast column 1, precast beam 2, first precast groove 20, prestressed tendon 3, buckling restrained brace 4, right-angle brace 5, fixed seat 51, rotating shaft 52, nut 53, precast corbel 6, second precast groove 60, reinforcing rib plate 7, bonding mortar 8, metal corrugated pipe 9, etc. are used more herein. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. The utility model provides a novel precast prestressed concrete frame structure of area support, includes precast column (1) and precast beam (2), and a plurality of prefabricated frames, its characterized in that are constituteed to this precast column (1) and precast beam (2): prefabricated post (1) and precast beam (2) are connected through prestressing tendons (3), wherein are provided with buckling-restrained brace piece (4) along the diagonal in at least one prefabricated frame, and the both ends of this buckling-restrained brace piece (4) are provided with one right angle support piece (5) respectively, are provided with prefabricated bracket (6) on prefabricated post (1), and the both ends of every precast beam (2) set up respectively on prefabricated bracket (6) and right angle support piece (5) or set up on two prefabricated brackets (6).
2. A novel precast prestressed concrete frame structure with supports according to claim 1, wherein: the right-angle supporting piece (5) is an equilateral angle steel, and the right-angle supporting piece (5) is connected with the precast beam (2) and the precast column (1) through high-strength bolts.
3. A novel precast prestressed concrete frame structure with supports according to claim 2, wherein: and a reinforcing rib plate (7) is arranged on the inner side of the right-angle support (5).
4. A novel precast prestressed concrete frame structure with supports according to claim 1, wherein: bonding gaps are arranged between the two ends of the precast beam (2) and the precast columns (1), and bonding mortar (8) is filled in the bonding gaps; the width of the bonding gap is 1.5-2.5 cm.
5. The novel precast prestressed concrete frame structure with supports according to claim 4, wherein: the both ends downside of precast beam (2) is equipped with first prefabricated groove (20) respectively, prefabricated bracket (6) top is close to prefabricated post (1) one side and is equipped with second prefabricated groove (60) with first prefabricated groove (20) intercommunication, it has bonding mortar (8) to fill in first prefabricated groove (20) and second prefabricated groove (60).
6. The novel precast prestressed concrete frame structure with supports according to claim 5, wherein: the depth of the first pregroove (20) increases from the inner side to the outer side and the depth of the second pregroove (60) increases from the inner side to the outer side.
7. A novel precast prestressed concrete frame structure with supports according to claim 1, wherein: the buckling-restrained diagonal bracing pieces (4) are arranged in the plurality of prefabricated frames in the transverse row at intervals, and two adjacent buckling-restrained diagonal bracing pieces (4) are arranged along crossed diagonal lines.
8. A novel precast prestressed concrete frame structure with supports according to claim 7, wherein: the anti-buckling inclined support members (4) are arranged in each prefabricated frame on the odd-numbered columns, the anti-buckling inclined support members (4) are not arranged in each prefabricated frame on the even-numbered columns, and two adjacent anti-buckling inclined support members (4) in the prefabricated frames on the odd-numbered columns are arranged along crossed diagonal lines.
9. A novel precast prestressed concrete frame structure with supports according to claim 1, wherein: the buckling-restrained diagonal support member (4) is a section steel diagonal support member, a steel structure diagonal support member with a hydraulic damper or a steel structure diagonal support member with a viscoelastic damper.
10. A novel precast prestressed concrete frame structure with supports according to claim 1, wherein: the center of the precast beam (2) is embedded with a metal corrugated pipe (9) along the axial direction, the prestressed tendons (3) penetrate through the metal corrugated pipe (9), and the precast beams (2) which are transversely arranged are connected through the prestressed tendons (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120865789.2U CN214940977U (en) | 2021-04-25 | 2021-04-25 | Novel prefabricated prestressed concrete frame structure that area supported |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120865789.2U CN214940977U (en) | 2021-04-25 | 2021-04-25 | Novel prefabricated prestressed concrete frame structure that area supported |
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| CN214940977U true CN214940977U (en) | 2021-11-30 |
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| CN202120865789.2U Expired - Fee Related CN214940977U (en) | 2021-04-25 | 2021-04-25 | Novel prefabricated prestressed concrete frame structure that area supported |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658123A (en) * | 2022-02-25 | 2022-06-24 | 北京航空航天大学 | Cross-floor energy dissipation and shock absorption supporting frame structure and construction method thereof |
| CN114812190A (en) * | 2022-05-18 | 2022-07-29 | 中国中材国际工程股份有限公司 | Double-series kiln tail frame layering system and method |
-
2021
- 2021-04-25 CN CN202120865789.2U patent/CN214940977U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658123A (en) * | 2022-02-25 | 2022-06-24 | 北京航空航天大学 | Cross-floor energy dissipation and shock absorption supporting frame structure and construction method thereof |
| CN114812190A (en) * | 2022-05-18 | 2022-07-29 | 中国中材国际工程股份有限公司 | Double-series kiln tail frame layering system and method |
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