CN108755978B - Dry-wet mixed connection node and construction method thereof - Google Patents
Dry-wet mixed connection node and construction method thereof Download PDFInfo
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- CN108755978B CN108755978B CN201810603811.9A CN201810603811A CN108755978B CN 108755978 B CN108755978 B CN 108755978B CN 201810603811 A CN201810603811 A CN 201810603811A CN 108755978 B CN108755978 B CN 108755978B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
- E04B1/6116—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by locking means on lateral surfaces
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Abstract
The invention provides a dry-wet mixed connecting node and a construction method thereof, wherein the dry-wet mixed connecting node comprises a connecting piece horizontally arranged between a first concrete plate and a second concrete plate, the matching surfaces of the first concrete plate and the second concrete plate are respectively provided with a guide groove, the bottom of the guide groove of the first concrete plate is provided with a spring, the side surface of the guide groove of the first concrete plate vertically penetrates through a first pin hole, and a connecting pin penetrates through the first pin hole and the connecting piece to compress the spring at the bottom of the guide groove of the first concrete plate; the side face of the guide groove of the second concrete plate vertically penetrates through the second pin hole, the connecting pin is pulled out, the connecting piece is bounced into the guide groove of the second concrete plate along the guide groove of the first concrete plate under the action of the spring, the length of the connecting piece is larger than that of the guide groove in the second concrete plate, the connecting pin is inserted into the second pin hole and the connecting piece, and concrete is cast in situ in the first pin hole and the guide groove of the first concrete plate. The invention has the advantages of both dry and wet connections.
Description
Technical Field
The invention belongs to the technical field of building structure connection, and particularly relates to a dry-wet hybrid connection node and a construction method thereof.
Background
At present, with the rapid development of building industrialization, an assembled reinforced concrete structure is one of important directions of building structure development, and is formed by connecting and assembling precast concrete members, compared with a cast-in-place construction method, an assembled PC (prefabricated concrete) structure is favorable for green construction, can better meet the requirements of green construction for land saving, energy saving, material saving, water saving, environmental protection and the like, reduces negative effects on the environment, including noise reduction, dust prevention, environmental pollution reduction, clean transportation, field interference reduction, water saving, electricity saving, material saving and other resources and energy, follows the principle of sustainable development, can improve the production efficiency, save energy, develop green and environment-friendly buildings, and is favorable for improving and ensuring the quality of building engineering. Therefore, the use of prefabricated concrete structures is becoming more and more popular.
The joint connection of the prefabricated concrete structure is mainly divided into a dry connection and a wet connection. Wet connection is a common and convenient connection mode in prefabricated structure connection, the overall performance of the structure is closer to cast-in-place concrete, and the wet connection is divided into the following types:
1. on-site direct concrete pouring joint
2. Node connected by common bolt
3. Bolt joint fastened by prestress
Because the wet connection in the above connection mode needs a higher concrete construction technology, the following defects mainly exist: the ductility of the connecting joint is poor, energy cannot be well dissipated under the action of an earthquake, the structure is complex, force transmission is indirect, construction is not easy, the manufacturing cost is high, and the requirements of heavy load, crack resistance and strong integrity are difficult to meet.
The dry connection is realized by implanting steel plates or other steel components into connected components and connecting or welding through bolts, so that the connection purpose is achieved.
Disclosure of Invention
The invention aims to provide a dry-wet hybrid connection node and a construction method thereof, and aims to solve the technical problems that wet connection construction is complicated, the structure is complex, force transmission is indirect, construction cost is high, heavy load, crack resistance and integrity are difficult to meet, the ductility of the connection node is poor, energy cannot be well dissipated during earthquake in the prior art, and the dry connection structure has large difference with a cast-in-place fabricated frame structure due to loose integral performance and is difficult to prevent damage under the action of earthquake load.
In order to achieve the purpose, the invention adopts the technical scheme that: the dry-wet concrete connection node comprises a connecting piece horizontally arranged between two adjacent concrete plates, wherein the two adjacent concrete plates are a first concrete plate and a second concrete plate respectively, and the connecting piece is fixedly connected with the second concrete plate through a connecting pin; the matching surfaces of the first concrete plate and the second concrete plate are respectively provided with a horizontal guide groove for accommodating the connecting piece, the bottom of the guide groove of the first concrete plate is provided with a spring, the side surface of the guide groove of the first concrete plate vertically penetrates through a first pin hole for matching with the connecting pin, and the side surface of the guide groove of the second concrete plate vertically penetrates through a second pin hole for matching with the connecting pin; the length of the connecting piece is greater than that of the guide groove in the second concrete plate; and concrete is cast in situ in the guide groove and the first pin hole of the first concrete plate.
Furthermore, the connecting piece is provided with a first positioning hole and a second positioning hole which are used for being matched with the connecting pin in parallel; before the first concrete plate and the second concrete plate are connected, the first pin hole corresponds to the first positioning hole; after the first concrete plate and the second concrete plate are connected, the second pin hole corresponds to the second positioning hole, and the connecting pin penetrates through the second pin hole and the second positioning hole in the connecting piece.
Furthermore, the middle part of the connecting piece is provided with a limiting table, the first positioning hole is formed in the left large-diameter part of the limiting table, the second positioning hole is formed in the right small-diameter part of the limiting table, the opening end of the guide groove in the first concrete slab is provided with a step matched with the limiting table, and the diameter of the opening of the guide groove in the first concrete slab is the same as that of the right small-diameter part of the connecting piece.
Further, the distance between the second positioning hole and the right end face of the connecting piece is smaller than or equal to the distance between the second pin hole and the bottom of the guide groove in the second concrete plate.
Furthermore, the bottom of the guide groove of the first concrete plate is provided with a blind hole for mounting a spring, and one end of the spring is fixed at the bottom of the blind hole.
Further, the first pin hole is disposed above a guide groove in the first concrete plate.
Further, the second pin hole is disposed through the second concrete plate from top to bottom.
The invention also provides a construction method of the dry-wet hybrid connection node, which comprises the following steps:
placing the connecting piece at the bottom of the guide groove of the first concrete plate, penetrating the connecting pin through the first pin hole of the first concrete plate and the connecting piece, and compressing the spring at the bottom of the guide groove of the first concrete plate;
after the first concrete plate and the second concrete plate are butted, the connecting pin is pulled out, and the connecting piece is bounced into the guide groove of the second concrete plate along the guide groove of the first concrete plate under the action of the spring;
inserting the connecting pin into the second pin hole of the second concrete plate and the connecting piece in the guide groove of the second concrete plate, and connecting and fixing the connecting piece and the second concrete plate;
and pouring concrete into the guide groove of the first concrete plate by taking the first pin hole of the first concrete plate as a pouring gate, and connecting the first concrete plate and the second concrete plate into a whole after the concrete is solidified.
Further, the movable end of the spring is fixed at the left end of the connecting piece, and after the connecting piece is slid into the guide groove of the second concrete slab, the spring has a certain compression amount.
The dry-wet hybrid connection joint and the construction method thereof provided by the invention have the beneficial effects that: compared with the prior art, the dry-wet hybrid connection joint has the characteristics of dry connection and wet connection, is simple in structure and easy to operate, has the advantages of simple construction process, convenience and quickness in construction, low cost, high crack resistance and high integrity, can well dissipate energy under the action of an earthquake, and is good in ductility.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural view of a wet and dry hybrid connection node according to an embodiment of the present invention after a first concrete slab and a second concrete slab are connected;
fig. 2 is a schematic structural view of a wet and dry hybrid connection node according to an embodiment of the present invention before a first concrete slab and a second concrete slab are connected;
wherein, in the figures, the respective reference numerals:
1-a first concrete plate, 2-a second concrete plate, 3-a connecting pin, 4-a first positioning hole, 5-a second positioning hole, 6-a guide groove, 7-a spring, 8-a first pin hole, 9-a second pin hole, 10-a connecting piece, 100-a limiting table, 101-a large diameter part and 102-a small diameter part; 11-step.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1 and fig. 2 together, the dry-wet hybrid connection node provided by the present invention will now be described. The dry-wet concrete connection node comprises a connecting piece 10 horizontally arranged between two adjacent concrete plates, wherein the two adjacent concrete plates are a first concrete plate 1 and a second concrete plate 2 respectively, and the connecting piece 10 is fixedly connected with the second concrete plate 2 through a connecting pin 3; the matching surfaces of the first concrete plate 1 and the second concrete plate 2 are respectively provided with a horizontal guide groove 6 for accommodating the connecting piece 10, the bottom of the guide groove 6 of the first concrete plate 1 is provided with a spring 7, the side surface of the guide groove 6 of the first concrete plate 1 vertically penetrates through a first pin hole 8 for matching with the connecting pin 3, and the side surface of the guide groove 6 of the second concrete plate 2 vertically penetrates through a second pin hole 9 for matching with the connecting pin 3; the length of the connecting piece 10 is greater than that of the guide groove 6 in the second concrete plate 2, so that two ends of the connecting piece are positioned in the guide grooves of the first concrete plate and the second concrete plate; the guide groove 6 and the first pin hole 8 of the first concrete plate 1 are filled with cast-in-place concrete. The first concrete plate and the second concrete plate are connected and fixed by the connecting pin, the connecting piece and cast-in-place concrete to form a dry-wet mixed connecting node, so that the technical defects of the dry-wet connected connecting node can be overcome, and the overall strength of the prefabricated concrete structure is improved.
Compared with the prior art, the dry-wet hybrid connection node provided by the invention has the characteristics of dry connection and wet connection, has the advantages of simple structure, convenience and quickness in construction, low cost, high crack resistance and high integrity, can well dissipate energy under the action of an earthquake, and has high ductility.
Further, referring to fig. 1 and 2, as a specific embodiment of the dry-wet hybrid connecting node provided by the present invention, two first positioning holes 4 and two second positioning holes 5 for matching with the connecting pins 3 are arranged in parallel on the connecting piece 10; before the first concrete plate 1 and the second concrete plate 2 are connected, the first pin hole 8 corresponds to the first positioning hole 4; after the first concrete plate 1 and the second concrete plate 2 are connected, the second pin hole 9 corresponds to the second positioning hole 5, and the connecting pin 3 is arranged by penetrating through the second pin hole 9 and the second positioning hole 5 on the connecting piece 10. By means of the matching of the connecting pin and the first positioning hole and the second positioning hole, the connecting piece can be easily connected with the first concrete plate and the second concrete plate respectively.
Further, referring to fig. 1 and 2, as an embodiment of the dry-wet hybrid connection node provided by the present invention, a limit table 100 is disposed at a middle portion of the connection member 10, the first positioning hole 4 is disposed at a left large-diameter portion 101 of the limit table 100, the second positioning hole 5 is disposed at a right small-diameter portion 102 of the limit table 100, a step 11 matched with the limit table 100 is disposed at an open end of the guide groove 6 in the first concrete plate 1, and a diameter of an opening of the guide groove 6 in the first concrete plate 1 is the same as a diameter of the right small-diameter portion 102 of the connection member 10 as a diameter of the guide groove 6 in the second concrete plate 2. The structure can realize effective connection of the first concrete plate and the second concrete plate by the connecting piece, and prevent the spring action of the connecting piece from completely entering the guide groove of the second concrete plate.
Further, referring to fig. 1 and 2, as an embodiment of the wet and dry hybrid connecting node provided by the present invention, the distance between the second positioning hole 5 and the right end surface of the connecting member 10 is less than or equal to the distance between the second pin hole 9 and the bottom of the guide groove 6 in the second concrete plate 2, so as to ensure that the two ends of the connecting member are located in the guide grooves of the first concrete plate and the second concrete plate, thereby achieving effective connection between the first concrete plate and the second concrete plate.
Further, referring to fig. 1 and 2, as an embodiment of the wet and dry hybrid connection node provided by the present invention, a blind hole for installing a spring 7 is provided at the bottom of the guide groove 6 of the first concrete plate 1, and one end of the spring 7 is fixed at the bottom of the blind hole. The blind holes are utilized to reduce the space occupied by the spring in the guide groove, so that the spring is convenient to install and is guided.
Further, referring to fig. 1 and 2, as an embodiment of the wet and dry hybrid connection node provided by the present invention, the first pin hole 8 is disposed above the guide groove 6 in the first concrete plate 1. The connecting pin is inserted into the first pin hole and the first positioning hole of the connecting piece from the upper part of the first concrete plate, and the structure is convenient for pouring concrete into the guide groove in the first concrete plate after the first concrete plate and the second concrete plate are connected.
Further, referring to fig. 1 and 2, as an embodiment of the wet and dry hybrid connection node provided by the present invention, the second pin hole 9 is disposed through the second concrete plate 2 from top to bottom. The second pin hole penetrates through the second concrete slab up and down, so that the connecting piece and the second concrete slab can be conveniently connected and fixed by the connecting pin, and the connecting firmness is enhanced.
The invention also provides a construction method of the dry-wet hybrid connection node, which comprises the following steps:
firstly, placing the connecting piece 10 at the bottom of the guide groove 6 of the first concrete plate 1 in advance, passing the connecting pin 3 through the first pin hole 8 of the first concrete plate 1 and the connecting piece 10, and compressing the spring 7 at the bottom of the guide groove 6 of the first concrete plate 1, as shown in figure 2;
the movable end of the spring is fixed at the left end of the connecting piece, so that the spring is ensured to have a certain compression amount after the connecting piece slides into the guide groove of the second concrete slab.
After the first concrete plate 1 is butted with the second concrete plate 2, the connecting pin 3 is pulled out, and the connecting piece 10 is bounced into the guide groove 6 of the second concrete plate 2 along the guide groove 6 of the first concrete plate 1 under the action of the spring 7;
thirdly, inserting the connecting pin 3 into the second pin hole 9 of the second concrete plate 2 and the connecting piece 10 in the guide groove 6 thereof, and connecting and fixing the connecting piece 10 and the second concrete plate 1, as shown in fig. 1;
and (IV) pouring concrete into the guide groove 6 of the first concrete plate 1 by using the first pin hole 8 of the first concrete plate 1 as a pouring gate, and integrally connecting the first concrete plate 1 and the second concrete plate 2 after the concrete is solidified.
Compared with the prior art, the construction method of the dry-wet hybrid connection node provided by the invention has the construction characteristics of dry connection and wet connection, is simple in process, convenient and fast to construct and low in cost, the obtained dry-wet hybrid connection node is high in crack resistance and integrity, the solidification is good in energy dissipation under the action of an earthquake, and the ductility of the connection node is good.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Dry wet mixed connected node, its characterized in that: the connecting piece is horizontally arranged between two adjacent concrete plates, the two adjacent concrete plates are respectively a first concrete plate and a second concrete plate, and the connecting piece is fixedly connected with the second concrete plate through a connecting pin; the matching surfaces of the first concrete plate and the second concrete plate are respectively provided with a horizontal guide groove for accommodating the connecting piece, the bottom of the guide groove of the first concrete plate is provided with a spring, the side surface of the guide groove of the first concrete plate vertically penetrates through a first pin hole for matching with the connecting pin, and the side surface of the guide groove of the second concrete plate vertically penetrates through a second pin hole for matching with the connecting pin; the length of the connecting piece is greater than that of the guide groove in the second concrete plate; concrete is cast in situ in the guide groove and the first pin hole of the first concrete plate;
the connecting piece is provided with a first positioning hole and a second positioning hole which are used for being matched with the connecting pin in parallel; before the first concrete plate and the second concrete plate are connected, the first pin hole corresponds to the first positioning hole; after the first concrete plate and the second concrete plate are connected, the second pin hole corresponds to the second positioning hole, and the connecting pin penetrates through the second pin hole and the second positioning hole in the connecting piece.
2. The wet and dry hybrid connection node of claim 1, wherein: the middle part of connecting piece is equipped with spacing platform, first locating hole set up in the left side major diameter portion of spacing platform, the second locating hole set up in the right side minor diameter portion of spacing platform, the open end of guide way in the first concrete slab be equipped with spacing platform complex step, the diameter of guide way opening part diameter and the second concrete slab interior guide way of first concrete slab with the right side minor diameter portion diameter of connecting piece is the same.
3. The wet and dry hybrid connection node of claim 2, wherein: and the distance between the second positioning hole and the right end face of the connecting piece is less than or equal to the distance between the second pin hole and the bottom of the guide groove in the second concrete plate.
4. The wet and dry hybrid connection node of claim 1, wherein: the bottom of the guide groove of the first concrete plate is provided with a blind hole for mounting a spring, and one end of the spring is fixed at the bottom of the blind hole.
5. The wet and dry hybrid connection node of claim 1, wherein: the first pin hole is disposed above a guide groove in the first concrete plate.
6. The wet and dry hybrid connection node of claim 1, wherein: the second pin hole penetrates through the second concrete plate from top to bottom.
7. The method for constructing a dry-wet hybrid connection node according to any one of claims 1 to 6, comprising the steps of:
placing the connecting piece at the bottom of the guide groove of the first concrete plate, penetrating the connecting pin through the first pin hole of the first concrete plate and the connecting piece, and compressing the spring at the bottom of the guide groove of the first concrete plate;
after the first concrete plate and the second concrete plate are butted, the connecting pin is pulled out, and the connecting piece is bounced into the guide groove of the second concrete plate along the guide groove of the first concrete plate under the action of the spring;
inserting the connecting pin into the second pin hole of the second concrete plate and the connecting piece in the guide groove of the second concrete plate, and connecting and fixing the connecting piece and the second concrete plate;
and pouring concrete into the guide groove of the first concrete plate by taking the first pin hole of the first concrete plate as a pouring gate, and connecting the first concrete plate and the second concrete plate into a whole after the concrete is solidified.
8. The construction method of the dry-wet hybrid connection node as claimed in claim 7, wherein: the movable end of the spring is fixed at the left end of the connecting piece, and after the connecting piece slides into the guide groove of the second concrete slab, the spring has a certain compression amount.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810603811.9A CN108755978B (en) | 2018-06-12 | 2018-06-12 | Dry-wet mixed connection node and construction method thereof |
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| CN201810603811.9A CN108755978B (en) | 2018-06-12 | 2018-06-12 | Dry-wet mixed connection node and construction method thereof |
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| CN108755978A CN108755978A (en) | 2018-11-06 |
| CN108755978B true CN108755978B (en) | 2020-09-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555251B (en) * | 2018-11-17 | 2020-07-24 | 郴州市长信住工科技有限公司 | Building assembled prefabricated slab and construction and installation method thereof |
| CN110485577A (en) * | 2019-07-25 | 2019-11-22 | 天一建设发展有限公司 | Precast wall body mounting structure |
| CN111733980B (en) * | 2020-06-16 | 2021-08-03 | 定州市筑业装配式建筑科技有限公司 | Assembled building that heat insulating ability is good |
| CN111677184B (en) * | 2020-06-25 | 2022-02-18 | 淳安县良诚建设有限公司 | Assembly wallboard convenient to connect and fix for assembly type building and installation method of assembly wallboard |
| USD987117S1 (en) | 2020-10-14 | 2023-05-23 | MillerKnoll, Inc. | Wall |
| US11814839B2 (en) | 2020-10-28 | 2023-11-14 | MillerKnoll, Inc. | Mobile wall including an alignment mechanism |
| CN112252519B (en) * | 2020-11-06 | 2022-01-18 | 绍兴宝城建筑工业化制造有限公司 | Connecting structure and construction method of prefabricated wall panel |
| CN113215915A (en) * | 2021-05-25 | 2021-08-06 | 山东高速齐鲁建设集团有限公司 | Contact method between assembly type cement concrete pavement slab and plate in logistics park |
| CN113338448B (en) * | 2021-06-22 | 2022-08-26 | 山东中岩重科新材料科技有限公司 | Rapid connecting device for precast concrete components and using method thereof |
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| CN204876811U (en) * | 2015-07-23 | 2015-12-16 | 柳州铁道职业技术学院 | Many function modularization temporary works rail |
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