CN110984203A - Precast concrete foundation, ground beam, connecting structure and mounting method - Google Patents
Precast concrete foundation, ground beam, connecting structure and mounting method Download PDFInfo
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- CN110984203A CN110984203A CN201911125607.1A CN201911125607A CN110984203A CN 110984203 A CN110984203 A CN 110984203A CN 201911125607 A CN201911125607 A CN 201911125607A CN 110984203 A CN110984203 A CN 110984203A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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Abstract
The invention mainly aims to provide a precast concrete foundation, a ground beam, a connecting structure and an installation method. The connection structure includes: the first connecting part is arranged at the top end of the precast concrete foundation and comprises a penetrating sleeve; the second connecting parts are arranged at two ends of the precast concrete ground beam and comprise first positioning holes; the position and the size of the first positioning hole are matched with those of the sleeve; a third connecting member including a connecting rod and a fixing piece; the connecting rod can sequentially penetrate through the first positioning hole and the sleeve; the fixing piece is arranged at two ends of the connecting rod to fix the connecting rod. The concrete floor beam construction site wet operation is reduced, the floor beam operation can be completed only through simple assembly, the construction efficiency of the floor beam is greatly improved, the construction period is greatly shortened, the construction cost is reduced, and the bearing performance of the floor beam joint meets the process requirements, so that the concrete floor beam construction site wet operation is more practical.
Description
Technical Field
The invention belongs to the technical field of assembly type construction, and particularly relates to a precast concrete foundation, a ground beam, a connecting structure and a mounting method, which are particularly suitable for mounting and connecting the precast concrete ground beam of a light steel structure.
Background
The connection compactness of all links of the construction project is poor, so that the construction efficiency is low, the product quality is poor, the overall energy consumption of the industry is high, and the environment, the resources and the energy are greatly damaged and wasted. The assembly type building has the characteristics of production standardization, construction mechanization and management informatization, the development of the assembly type building can save a large amount of resources, actively promote technical innovation, improve the building quality and promote the transformation and upgrading of building enterprises, is the fundamental transformation of the building production mode from extensive production to intensive production, and is also the inevitable way and the development direction of the modernization of the building industry. Therefore, it is necessary to solve the above problems by replacing the conventional construction work with the assembly work.
The self-weight load of the fabricated light steel structure building is usually small, and the fabricated light steel structure building is generally required to be matched with an independent foundation and a ground beam for combined construction during construction. However, in the prior art, the independent foundation and the ground beam both need to be cast in situ, and the defects are that wet operation can be performed in an operation site, the construction period is long, the environment is greatly influenced, and the popularization and the application of the assembly type light steel structure building are greatly influenced.
Disclosure of Invention
The invention mainly aims to provide a precast concrete foundation, a precast concrete ground beam, a connecting structure of the precast concrete ground beam and an installation method of the precast concrete ground beam, and aims to solve the technical problem of reducing wet operation of a concrete ground beam construction site as much as possible.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the present invention, there is provided a connecting structure of precast concrete ground beams, which includes:
the first connecting part is arranged at the top end of the precast concrete foundation and comprises a penetrating sleeve;
the second connecting parts are arranged at two ends of the precast concrete ground beam and comprise first positioning holes; the position and the size of the first positioning hole are matched with those of the sleeve;
a third connecting member including a connecting rod and a fixing piece; the connecting rod can sequentially penetrate through the first positioning hole and the sleeve; the fixing piece is arranged at two ends of the connecting rod to fix the connecting rod.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, in the aforementioned connection structure, the connecting rod is deformed steel bar; the fixing piece is a nut.
Preferably, in the connecting structure, the first connecting part further includes two L-shaped bases, which include a first vertical plate and a first horizontal plate; the first vertical plate is inserted into the precast concrete foundation; the first transverse plates are respectively arranged on two sides of the first connecting part; the first transverse plate is provided with a fixing hole;
the second connecting part also comprises a second positioning hole; the position and the size of the second positioning hole are matched with those of the fixing hole;
the second positioning hole and the fixing hole can be fixedly connected through a bolt and a nut.
Preferably, in the connecting structure, a plurality of reinforcing rib plates are arranged between the first vertical plate and the first transverse plate.
Preferably, in the connecting structure, the first connecting part is connected with a precast concrete foundation in a pouring manner; the sleeve is horizontally arranged in the first connecting part; the L-shaped support bottoms are respectively arranged on the side face where the opening end of the sleeve is located and close to the bottom of the first connecting part.
Preferably, in the connecting structure, the second connecting part is an L-shaped structure and includes a second vertical plate, a second horizontal plate and a reinforcing plate disposed between the second vertical plate and the second horizontal plate; the second vertical plate abuts against the side face of the precast concrete ground beam; the second transverse plate abuts against the bottom surface of the precast concrete ground beam; the reinforcing plate is inserted into the precast concrete ground beam.
Preferably, in the connecting structure, the first positioning hole is disposed on the second vertical plate; the second positioning hole is formed in the second transverse plate.
The object of the present invention and the technical problem to be solved are also achieved by the following technical means. According to the precast concrete foundation provided by the invention, the top of the precast concrete foundation is provided with a first connecting part in pouring connection with the precast concrete foundation; the first connecting part comprises a plurality of penetrating sleeves and two L-shaped support bottoms; the sleeve is horizontally arranged inside the first connecting part; the L-shaped support bottoms are respectively arranged on the side surfaces where the open ends of the sleeves are located and close to the bottoms, and comprise first vertical plates and first transverse plates; the first vertical plate is inserted into the precast concrete foundation; the first transverse plates are respectively arranged on two sides of the first connecting part; the first transverse plate is provided with a fixing hole.
The object of the present invention and the technical problem to be solved are also achieved by the following technical means. According to the precast concrete ground beam, the end part of the precast concrete ground beam is provided with a second connecting part which is connected with the precast concrete ground beam in a pouring way; the second connecting part is of an L-shaped structure and comprises a second vertical plate, a second transverse plate and a reinforcing plate arranged between the second vertical plate and the second transverse plate; the second vertical plate abuts against the side face of the precast concrete ground beam; the second transverse plate abuts against the bottom surface of the precast concrete ground beam; the reinforcing plate is inserted into the precast concrete ground beam; the second vertical plate is provided with a first positioning hole; and a second positioning hole is formed in the second transverse plate.
The object of the present invention and the technical problem to be solved are also achieved by the following technical means. The invention provides an installation method of a precast concrete ground beam, which comprises the following steps:
fixing the precast concrete foundation on a foundation;
placing the precast concrete floor beam on the L-shaped support bottom, and aligning the first positioning hole with the sleeve;
the thread steel sequentially penetrates through the first positioning hole, the sleeve and the first positioning hole, and two ends of the thread steel are fastened by nuts;
and bolts sequentially penetrate through the second positioning holes and the fixing holes, and the end parts are fastened by nuts.
By means of the technical scheme, the precast concrete foundation, the ground beam, the connecting structure and the mounting method provided by the invention at least have the following advantages:
1. the first connecting part is embedded in the precast concrete foundation, the second connecting part is embedded in the precast concrete ground beam, and when the precast concrete ground beam is constructed on site, the precast concrete ground beam can be constructed according to a design scheme only by connecting and fixing the first connecting part and the second connecting part through the third connecting part, the bolts and the nuts. The precast concrete foundation, the ground beam, the connecting structure and the mounting method have simple assembling process and easy operation; only a small amount of wet operation is performed on a construction site, so that the construction efficiency can be greatly improved, the construction period can be greatly shortened, and the construction cost can be reduced;
2. the connecting structure provided by the invention is arranged at the two ends of the precast concrete ground beam and the top of the precast concrete foundation, and the two ends of the ground beam and the top of the independent foundation are used as connecting points of the ground beam and the independent foundation according to the stress analysis of the ground beam and the independent foundation. The connecting structure is arranged at the position, so that on one hand, the precast concrete ground beam can be conveniently positioned, and when the precast concrete ground beam is hoisted to the L-shaped bottom supporting angle steel of the precast concrete foundation, the precast concrete ground beam can bear construction load without hoisting; meanwhile, the two are connected by using a plurality of screw-thread steels, the bending resistance bearing capacity of the two is provided by the penetrating screw-thread steels, and the shearing resistance bearing capacity of the two is provided by bolts and L-shaped bracket angle steels pre-embedded in the precast concrete foundation; the connecting structure can meet the stress requirement of the ground beam, has better bearing capacity and can completely meet the process requirement of ground beam construction.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic front view of a precast concrete foundation and a first connecting member according to an embodiment of the present invention;
FIG. 2 is a right side view of a precast concrete foundation and a first connecting member according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a precast concrete foundation and a first connecting member according to an embodiment of the present invention;
FIG. 4 is a schematic front view of a precast concrete ground beam and a second link member according to an embodiment of the present invention;
FIG. 5 is a right side view of a precast concrete ground beam and a second link member according to an embodiment of the present invention;
FIG. 6 is a schematic top view of a precast concrete ground beam and a second link member according to an embodiment of the present invention;
FIG. 7 is a schematic view showing the positional relationship between the sleeves and the first positioning holes when the precast concrete floor beam is installed according to an embodiment of the present invention;
FIG. 8 is a schematic view of the connection of a third link in one embodiment of the invention;
fig. 9 is a schematic cross-sectional view of a section of the installed precast concrete floor beam in the radial direction of the sleeve according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given of the concrete foundation, the ground beam, the connecting structure and the installation method according to the present invention, and the detailed embodiments, structures, features and effects thereof with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1 to 9, the present invention provides a connecting structure of precast concrete ground beam, which includes:
a first connecting part 1, which is provided on the top end of the precast concrete foundation 4, and includes a penetrating sleeve 11; the second connecting parts 2 are arranged at two ends of the precast concrete ground beam 5 and comprise first positioning holes 21; the position and the size of the first positioning hole 21 are matched with those of the sleeve 11; a third connecting member 3 including a connecting rod 31 and a fixing piece 32; the connecting rod 31 can sequentially penetrate through the first positioning hole 21 and the sleeve 11; the fixing members 32 are provided at both ends of the connecting rod 31 to fix it.
According to the structure and specification size analysis of the precast concrete foundation and the precast concrete ground beam, two ends of the ground beam and the top of the foundation are used as connection points of the precast concrete foundation and the precast concrete ground beam, and the stress of the connection structure is in the best state.
Preferably, the connecting rod 31 is deformed steel; the fixing member 32 is a nut.
The technical scheme of the invention discloses a precast concrete foundation 4, a precast concrete ground beam 5 and a connecting structure thereof, wherein the precast concrete foundation 4, the precast concrete ground beam 5 and the connecting structure are applied to a light steel structure, and the precast concrete ground beam 5 is connected to the precast concrete foundation 4 through the connecting structure.
The sleeve 11 is embedded in the precast concrete foundation 4 when the precast concrete foundation 4 is poured; the second connecting part 2 is embedded in the precast concrete ground beam 5 when the precast concrete ground beam is poured.
Preferably, the first connecting component 1 further comprises two L-shaped bases 12, which include a first vertical plate 121 and a first horizontal plate 122; the first vertical plate 121 is inserted into the precast concrete foundation 4; the first horizontal plates 122 are respectively disposed at two sides of the first connecting member 1; the first horizontal plate 122 is provided with a fixing hole 1221;
the second connecting part 2 further comprises a second positioning hole 22; the position and size of the second positioning hole 22 match the fixing hole 1221;
the second positioning hole 22 and the fixing hole 1221 can be fixedly connected by a bolt and a nut.
Preferably, a plurality of reinforcing rib plates 123 are arranged between the first vertical plate 121 and the first horizontal plate 122.
The L-shaped support bottom 12 is a steel component.
Preferably, the first connecting part 1 is connected with the precast concrete foundation 4 in a pouring manner; the sleeve 11 is horizontally arranged in the first connecting part 1; the L-shaped support bases 12 are respectively disposed on the side where the opening end of the sleeve 11 is located and close to the bottom of the first connecting component 1.
Preferably, the second connecting member 2 is an L-shaped structure, and includes a second vertical plate 23, a second horizontal plate 24, and a reinforcing plate 25 disposed between the second vertical plate 23 and the second horizontal plate 24; the second vertical plate 23 abuts against the side face of the precast concrete ground beam 5; the second transverse plate 24 abuts against the bottom surface of the precast concrete ground beam 5; the reinforcing plate 25 is inserted into the precast concrete floor beam 5.
The second connecting part 2 is a steel connecting piece.
Preferably, the first positioning hole 21 is disposed on the second vertical plate 23; the second positioning hole 22 is disposed on the second cross plate 24.
The connecting structure is arranged at the position, and when the connecting structure is used for connecting, on one hand, the precast concrete ground beam can be conveniently positioned, and when the precast concrete ground beam is hoisted to the L-shaped support bottom angle steel of the precast concrete foundation, the precast concrete ground beam can bear construction load without hoisting; meanwhile, the two are connected by using a plurality of screw-thread steels, the bending resistance bearing capacity of the two is provided by the penetrating screw-thread steels, and the shearing resistance bearing capacity of the two is provided by bolts and L-shaped bracket angle steels pre-embedded in the precast concrete foundation; the connecting structure can meet the stress requirement of the ground beam, has better bearing capacity and can completely meet the process requirement of ground beam construction.
The invention also provides a precast concrete foundation 4, the top of which is provided with a first connecting part 1 which is connected with the precast concrete foundation in a pouring way; the first connecting part 1 comprises a plurality of penetrating sleeves 11 and two L-shaped support bottoms 12; the sleeve 11 is horizontally arranged inside the first connecting part 1; the L-shaped support bases 12 are respectively arranged on the side where the open end of the sleeve 11 is located and close to the bottom, and include a first vertical plate 121 and a first horizontal plate 122; the first vertical plate 121 is inserted into the precast concrete foundation 4; the first horizontal plates 122 are respectively disposed at two sides of the first connecting member 1; the first horizontal plate 122 is provided with a fixing hole 1221.
The invention also provides a precast concrete ground beam 5, the end part of which is provided with a second connecting part 2 connected with the precast concrete ground beam in a pouring way; the second connecting part 2 is an L-shaped structure and comprises a second vertical plate 23, a second transverse plate 24 and a reinforcing plate 25 arranged between the second vertical plate 23 and the second transverse plate 24; the second vertical plate 23 abuts against the side face of the precast concrete ground beam 5; the second transverse plate 24 abuts against the bottom surface of the precast concrete ground beam 5; the reinforcing plate 25 is inserted into the precast concrete ground beam 5; the second vertical plate 23 is provided with a first positioning hole 21; the second horizontal plate 24 is provided with a second positioning hole 22.
The invention also provides an installation method of the precast concrete ground beam 5, which comprises the following steps:
fixing the precast concrete foundation 4 on a foundation;
placing the precast concrete ground beam 5 on the L-shaped support base 12, so that the first positioning hole 21 is aligned with the sleeve 11;
threaded steel penetrates through the first positioning hole 21, the sleeve 11 and the first positioning hole 21 in sequence, and two ends of the threaded steel are fastened by nuts;
bolts are used to pass through the second positioning holes 22 and the fixing holes 1221 in sequence, and the ends are fastened with nuts.
In one embodiment of the present invention, a precast concrete foundation and a precast concrete floor beam are constructed according to a design scheme and then transported to a construction site for installation of the floor beam.
During construction, firstly, placing the precast concrete foundation to a designed position and fixing the precast concrete foundation; then placing the precast concrete ground beam on the steel member support bottoms of the two precast concrete foundations, aligning a first positioning hole on the precast concrete ground beam with a sleeve of the precast concrete foundation, and aligning a second positioning hole on the precast concrete ground beam with a fixing hole of the precast concrete foundation; then, threaded steel penetrates through a first positioning hole of the precast concrete ground beam and a sleeve of the precast concrete foundation respectively; if the two sides of the precast concrete foundation are required to be connected with the precast concrete ground beam, threaded steel penetrates through a first positioning hole of the precast concrete ground beam, a sleeve of the precast concrete foundation and a first positioning hole of the other precast concrete ground beam, and two ends of the threaded steel are fastened by nuts; and finally, bolts penetrate through the second positioning holes of the precast concrete ground beams and the fixing holes of the precast concrete foundation and are fixedly connected through nuts.
According to the installation method of the technical scheme of the invention, the precast concrete ground beams can be sequentially installed according to the designed scheme, and the construction of the ground beams is completed. The method has simple assembly process and easy operation; only a small amount of wet operation is needed in a construction site, so that the construction efficiency can be greatly improved, the construction period can be greatly shortened, and the construction cost can be reduced.
Furthermore, the connecting structure in the technical scheme of the invention is respectively arranged at the two ends of the precast concrete ground beam and the top of the precast concrete foundation, and the connecting point is arranged at the position to meet the stress requirement of the ground beam according to the stress analysis of the ground beam and the independent foundation; and the connection of the two is carried out by using a plurality of screw-thread steels, so that the bearing capacity is better, and the process requirement of ground beam construction can be completely met.
The features of the invention claimed and/or described in the specification may be combined, and are not limited to the combinations set forth in the claims by the recitations therein. The technical solutions obtained by combining the technical features in the claims and/or the specification also belong to the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. A connecting structure of a precast concrete ground beam, comprising:
the first connecting part is arranged at the top end of the precast concrete foundation and comprises a penetrating sleeve;
the second connecting parts are arranged at two ends of the precast concrete ground beam and comprise first positioning holes; the position and the size of the first positioning hole are matched with those of the sleeve;
a third connecting member including a connecting rod and a fixing piece; the connecting rod can sequentially penetrate through the first positioning hole and the sleeve; the fixing piece is arranged at two ends of the connecting rod to fix the connecting rod.
2. The connection structure according to claim 1, wherein the connection rod is a deformed steel; the fixing piece is a nut.
3. The connection structure according to claim 1 or 2,
the first connecting part also comprises two L-shaped support bottoms which comprise a first vertical plate and a first transverse plate; the first vertical plate is inserted into the precast concrete foundation; the first transverse plates are respectively arranged on two sides of the first connecting part; the first transverse plate is provided with a fixing hole;
the second connecting part also comprises a second positioning hole; the position and the size of the second positioning hole are matched with those of the fixing hole;
the second positioning hole and the fixing hole can be fixedly connected through a bolt and a nut.
4. A connecting structure according to claim 3, wherein a plurality of reinforcing rib plates are arranged between the first vertical plate and the first transverse plate.
5. The connection structure according to claim 3, wherein the first connection member is cast-connected with a precast concrete foundation; the sleeve is horizontally arranged in the first connecting part; the L-shaped support bottoms are respectively arranged on the side face where the opening end of the sleeve is located and close to the bottom of the first connecting part.
6. The connecting structure according to claim 3, wherein the second connecting part is an L-shaped structure and comprises a second vertical plate, a second transverse plate and a reinforcing plate arranged between the second vertical plate and the second transverse plate; the second vertical plate abuts against the side face of the precast concrete ground beam; the second transverse plate abuts against the bottom surface of the precast concrete ground beam; the reinforcing plate is inserted into the precast concrete ground beam.
7. The connecting structure according to claim 3, wherein the first positioning hole is provided on the second vertical plate; the second positioning hole is formed in the second transverse plate.
8. The precast concrete foundation is characterized in that a first connecting part in pouring connection with the precast concrete foundation is arranged at the top of the precast concrete foundation; the first connecting part comprises a plurality of penetrating sleeves and two L-shaped support bottoms; the sleeve is horizontally arranged inside the first connecting part; the L-shaped support bottoms are respectively arranged on the side surfaces where the open ends of the sleeves are located and close to the bottoms, and comprise first vertical plates and first transverse plates; the first vertical plate is inserted into the precast concrete foundation; the first transverse plates are respectively arranged on two sides of the first connecting part; the first transverse plate is provided with a fixing hole.
9. The precast concrete ground beam is characterized in that a second connecting part connected with the precast concrete ground beam in a pouring way is arranged at the end part of the precast concrete ground beam; the second connecting part is of an L-shaped structure and comprises a second vertical plate, a second transverse plate and a reinforcing plate arranged between the second vertical plate and the second transverse plate; the second vertical plate abuts against the side face of the precast concrete ground beam; the second transverse plate abuts against the bottom surface of the precast concrete ground beam; the reinforcing plate is inserted into the precast concrete ground beam; the second vertical plate is provided with a first positioning hole; and a second positioning hole is formed in the second transverse plate.
10. A method for installing a precast concrete ground beam is characterized by comprising the following steps:
fixing the precast concrete foundation of claim 8 to a foundation;
placing the precast concrete floor beam of claim 9 on the L-shaped tray with the first positioning hole aligned with the sleeve;
the thread steel sequentially penetrates through the first positioning hole, the sleeve and the first positioning hole, and two ends of the thread steel are fastened by nuts;
and bolts sequentially penetrate through the second positioning holes and the fixing holes, and the end parts are fastened by nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125607.1A CN110984203B (en) | 2019-11-18 | 2019-11-18 | Precast concrete foundation, ground beam, connecting structure and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125607.1A CN110984203B (en) | 2019-11-18 | 2019-11-18 | Precast concrete foundation, ground beam, connecting structure and mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110984203A true CN110984203A (en) | 2020-04-10 |
| CN110984203B CN110984203B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911125607.1A Active CN110984203B (en) | 2019-11-18 | 2019-11-18 | Precast concrete foundation, ground beam, connecting structure and mounting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN110984203B (en) |
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| ES2387852A1 (en) * | 2010-12-22 | 2012-10-02 | Imat Centre Tecnològic De La Construcció | Armed beam with round road intended to be joined by screwing to a pillar, unión system of said beam with a pillar, and provided structure of said system. (Machine-translation by Google Translate, not legally binding) |
| CN203947596U (en) * | 2014-07-16 | 2014-11-19 | 青岛理工大学 | A kind of assembly type cast steel outer sleeve-T-shaped beam and post linkage |
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| CN106638650A (en) * | 2015-11-03 | 2017-05-10 | 上海泰大建筑科技有限公司 | Assembled type concrete base structure |
| CN206693385U (en) * | 2017-04-14 | 2017-12-01 | 薛万里 | A kind of prestressing force precast frame bean column node |
| CN107460886A (en) * | 2017-09-23 | 2017-12-12 | 辽宁福瑞达建筑科技有限公司 | A kind of lightweight steel construction assembles basis and its construction method of decoration integrated building |
| CN208363421U (en) * | 2018-03-19 | 2019-01-11 | 北京工业大学 | Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam cross connecting node |
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2019
- 2019-11-18 CN CN201911125607.1A patent/CN110984203B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060000492A (en) * | 2004-06-29 | 2006-01-06 | 우림건설 주식회사 | Joint structure of precast concrete beam and column unit |
| ES2387852A1 (en) * | 2010-12-22 | 2012-10-02 | Imat Centre Tecnològic De La Construcció | Armed beam with round road intended to be joined by screwing to a pillar, unión system of said beam with a pillar, and provided structure of said system. (Machine-translation by Google Translate, not legally binding) |
| CN203947596U (en) * | 2014-07-16 | 2014-11-19 | 青岛理工大学 | A kind of assembly type cast steel outer sleeve-T-shaped beam and post linkage |
| CN106638650A (en) * | 2015-11-03 | 2017-05-10 | 上海泰大建筑科技有限公司 | Assembled type concrete base structure |
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| CN206693385U (en) * | 2017-04-14 | 2017-12-01 | 薛万里 | A kind of prestressing force precast frame bean column node |
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| Publication number | Publication date |
|---|---|
| CN110984203B (en) | 2022-02-18 |
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