CN117403700A - Connection structure for assembled prefabricated part and construction method thereof - Google Patents

Abstract

The invention relates to the technical field of prefabricated subway stations, and in particular to a connection structure for prefabricated components and a construction method thereof. The connection structure for prefabricated components includes a connecting rod, and the front end of the connecting rod is provided with a first stopper. The rear end of the connecting rod passes through each prefabricated component from front to back and is connected to a second stopper; the connecting rod is passed through each prefabricated component, greatly increasing the length of the connecting rod, and the outside of the connecting rod is located on the adjacent The position between the two prefabricated components is provided with a first elastic member, a third stopper and a second elastic member that contact in sequence from front to back. The front end of each first elastic member is in contact with the prefabricated component adjacent to its front. The rear end of each second elastic member is in contact with the prefabricated component adjacent to its own rear end; the elastic deformation of the connecting rod can be evenly distributed to the length of the entire connecting rod, thereby increasing the allowable elasticity of the connecting rod The amount of deformation reduces the risk of plastic deformation when prefabricated components are subjected to tensile force.

Description

A kind of connection structure for prefabricated components and its construction method

Technical field

The invention relates to the technical field of prefabricated subway stations, and in particular to a connection structure for prefabricated components and a construction method thereof.

Background technique

Prefabricated buildings are made by concentrating steel bars and concrete constructed using traditional construction methods into prefabricated components in a factory. They are finally assembled at the construction site of the main structure and formed piece by piece like building blocks. Prefabricated buildings enable factory-based construction and production of building structures. Prefabricated subway stations are a new form of prefabricated buildings. Compared with traditional cast-in-place subway station structures, prefabricated subway stations have the advantages of high efficiency, controllable quality, energy saving and environmental protection.

The connection structure between two adjacent lining rings is the weak point of the prefabricated subway station. The common connection structure between two adjacent lining rings includes connecting flanges provided on both sides of the lining ring and threaded through the connection. Connecting bolts in flange. Under the action of surface dynamic load and earthquake load, adjacent lining rings will generate large vibration loads, and the vibration loads will cause instantaneous tensile deformation between adjacent lining rings; therefore, the connecting bolts between two adjacent lining rings It is easy to be pulled off, and it will also cause local damage to the concrete segments. The inventor found through research that one of the important reasons for the fracture of the connecting bolts used to connect two adjacent lining rings is that the allowable elastic deformation of the connecting bolts is small; The factor is the distance between the nuts on both sides of the connecting flange. The allowable elastic deformation of the connecting bolt is positively related to the distance between the nut and the nut. If the distance between the nut and the nut can be increased , which can increase the allowable elastic deformation of the connecting bolt, thereby improving the reliability of the longitudinal connection structure of the assembled components.

Contents of the invention

The technical problem to be solved by this invention is: in the existing longitudinal connection structure of prefabricated components, the allowable elastic deformation of the connecting bolts used to connect the lining rings is small. When tensile deformation occurs between the lining rings, the connecting bolts are The risk of plastic deformation and fracture is greater.

In order to solve the above technical problems, the object of the present invention is to provide a connection structure for prefabricated components, which is used to connect multiple prefabricated components arranged in sequence from front to back. The connection structure for prefabricated components includes:

Connecting rod, a first stopper is provided on the outside of the front end of the connecting rod, and the rear end of the connecting rod passes through each of the prefabricated components from front to back and is connected to a second stopper. Each of the prefabricated components Sandwiched between the first stopper and the second stopper;

The outer side of the connecting rod is located between the two adjacent prefabricated components, and is provided with a first elastic member, a third stopper and a second elastic member that abut in sequence from front to back. The front ends of the first elastic members are in contact with the rear ends of the prefabricated components adjacent to the front thereof, and the rear ends of each of the second elastic members are in contact with the prefabricated components adjacent to the rear ends of the first elastic members.

As a preferred solution, the connecting rod includes a plurality of sub-rod bodies arranged in sequence from front to back. Thread sleeves are arranged between the two adjacent front and rear sub-rod bodies. One of the two adjacent front and rear sub-rod bodies The end of the rod is screwed to one end of the screw hole of the screw sleeve, and the end of the other of the two adjacent sub-rod bodies is screwed to the other end of the screw hole of the screw sleeve.

As a preferred solution, a third elastic member is provided in the middle of the screw hole of each thread sleeve, and the two ends of the third elastic member are respectively in contact with the ends of the two adjacent sub-rod bodies.

As a preferred solution, each of the screw sleeves is provided with a polygonal anti-rotation structure on the outside, and each of the second elastic members is provided with a first mounting hole matching the polygonal anti-rotation structure. Each of the screw sleeves is provided with a polygonal anti-rotation structure. It is arranged in the first mounting hole adjacent to itself.

As a preferred solution, an end of one of the two adjacent prefabricated components is provided with a receiving groove, and the first elastic member, the third stopper and the second elastic member are all provided at the end. in the holding tank.

As a preferred solution, at least one of the first stopper and the second stopper is a nut screwed to the outside of the connecting rod.

As a preferred solution, each of the third stoppers is a nut screwed to the outside of the connecting rod.

As a preferred solution, an elastic sealing ring is sandwiched between two adjacent prefabricated components.

An above-mentioned construction method for connecting structures for prefabricated components, including the following steps;

Step S1: Pass the rear end of the connecting rod through the first prefabricated component;

Step S2: Install the first elastic member and the third stopper at the rear end of the connecting rod, so that the third stopper presses the first elastic member forward and moves the third stopper forward. The parts are fixed on the connecting rod;

Step S3: Install the second elastic member and another prefabricated component on the rear end of the connecting rod;

Step S4: Repeat steps S2 and S3 until all prefabricated components are installed;

Step S5: Install the second stopper on the rear end of the connecting rod.

As a preferred solution, in step S1, pass the rear end of the first sub-rod body through the first prefabricated component;

The step S2 includes:

Step S21, install the first elastic member on the rear end of the first sub-rod body;

Step S22, screw the third stopper to the rear end of the first sub-rod body;

Step S23, connect the threaded sleeve and the second elastic member at the rear end of the first sub-rod body;

Step S24: Connect another sub-rod body to the other end of the threaded sleeve.

Compared with the prior art, the beneficial effects of the present invention are:

The connection structure for assembled prefabricated components of the present invention includes a connecting rod. A first stopper is provided on the outside of the front end of the connecting rod. The rear end of the connecting rod passes through each prefabricated component in sequence from front to back and is connected with a second stopper. , each prefabricated component is sandwiched between the first stopper and the second stopper; the connecting rod is passed through each prefabricated component, greatly increasing the length of the connecting rod, and the outside of the connecting rod is located between the two adjacent The positions between the prefabricated components are provided with first elastic members, third stoppers and second elastic members that contact in sequence from front to back. The front end of each first elastic member is connected to the rear end of the prefabricated component adjacent to the front of itself. end contact, the rear end of each second elastic member is in contact with the prefabricated component adjacent to its own rear end; when the connecting rod is elastically deformed under tension, the compression of each first elastic member or the second elastic member causes the connecting rod to extend It can move relative to each prefabricated component so that the elastic deformation of the connecting rod can be evenly distributed to the entire length of the connecting rod, thereby increasing the allowable elastic deformation of the connecting rod and reducing the risk of plastic deformation when the prefabricated component is subjected to tensile force. Risk, the arrangement of the first elastic member and the second elastic member can not only clamp each prefabricated component so that each prefabricated component remains fixed, but also buffer the vibration of each prefabricated component.

Description of the drawings

Figure 1 is a schematic structural diagram of the connection structure for prefabricated components of the present invention;

Figure 2 is a partial enlarged view of C in Figure 1;

Figure 3 is a schematic structural diagram of the second elastic member;

In the figure, 100. Prefabricated component; 101. Accommodating groove; 1. Connecting rod; 11. Sub-rod body; 12. Screw sleeve; 2. First stopper; 3. Second stopper; 4. First elastic member ; 5. Third stopper; 6. Second elastic member; 61. First mounting hole; 62. Second mounting hole; 63. Third mounting hole; 7. Third elastic member; 8. Elastic sealing ring.

Detailed ways

Specific implementations of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be called "second" information, and similarly, "second" information may also be called "first" information.

The connection structure for prefabricated components of the present invention is used to connect multiple prefabricated components 100 arranged in sequence from front to back, as shown in Figures 1, 2, and 3. The connection structure for prefabricated components of the present invention includes:

The connecting rod 1 has a first stopper 2 on the outside of the front end of the connecting rod 1. The rear end of the connecting rod 1 passes through each prefabricated component 100 from front to back and is connected to a second stopper 3. Each prefabricated component 100 is clamped Located between the first stopper 2 and the second stopper 3;

The outer side of the connecting rod 1 is located between the two adjacent prefabricated components 100, and is provided with a first elastic member 4, a third stopper 5 and a second elastic member 6 that abut in sequence from front to back. The front end of each elastic member 4 is in contact with the rear end of the prefabricated component 100 adjacent to its front, and the rear end of each second elastic member 6 is in contact with the prefabricated component 100 adjacent to its rear end.

Specifically, the connecting rod 1 is inserted into each prefabricated component 100, which greatly increases the length of the connecting rod 1. When the connecting rod 1 is elastically deformed under tension, the compression of each first elastic member 4 or the second elastic member 6 causes When the connecting rod 1 is extended, it can move relative to each prefabricated component 100, so that the elastic deformation of the connecting rod 1 can be evenly distributed to the entire length of the connecting rod 1, thereby increasing the allowable elastic deformation of the connecting rod 1 and reducing the prefabricated There is a risk of plastic deformation when the component 100 is subjected to tensile force. The arrangement of the first elastic member 4 and the second elastic member 6 can not only clamp each prefabricated component 100 so that each prefabricated component 100 remains fixed, but also buffer the vibration of each prefabricated component 100 , thus the seismic resistance of each prefabricated component.

In order to facilitate construction, in this embodiment, the connecting rod 1 includes a plurality of sub-rod bodies 11 arranged in sequence from front to back. Thread sleeves 12 are arranged between the two adjacent sub-rod bodies 11 at the front and rear. The end of one of them is screwed to one end of the screw hole of the screw sleeve 12 , and the end of the other of the two adjacent sub-rod bodies 11 is screwed to the other end of the screw hole of the screw sleeve 12 . Specifically, each sub-rod body 11 is a tensile steel bar with an external thread at its end. By setting the rod body 1 as a segmented structure, the length of the rod body 1 can be synchronously and flexibly increased when installing each prefabricated component. In other embodiments of the present invention, the rod body 1 may be configured as a whole.

In this embodiment, a third elastic member 7 is provided in the middle of the screw hole of each thread sleeve 12, and the two ends of the third elastic member 7 are respectively in contact with the ends of the two adjacent sub-rod bodies 11 at the front and rear. Specifically, the third elastic member 7 can be a rubber column or a compression spring. The third elastic member can apply pre-pressure to the sub-rod body 11 located at both ends of the threaded sleeve 12 to avoid loosening between the sub-rod body 11 and the threaded sleeve, further improving the The stability of the connection structure used for assembled prefabricated components in this embodiment.

Furthermore, each threaded sleeve 12 is provided with a polygonal anti-rotation structure on the outside, and each second elastic member 6 is provided with a first mounting hole 61 matching the polygonal anti-rotation structure. Each threaded sleeve 12 is respectively arranged adjacent to itself. in the adjacent first mounting hole 61. Specifically, in this embodiment, the second elastic member 6 is a rubber column, and the first mounting hole 61 is provided in the rubber column; when in use, first insert the screw sleeve 12 into the second elastic member 6, and then insert the screw sleeve 12 into the second elastic member 6. After the third stopper 5 is installed on the sub-rod body 11, connect the second elastic member 6 together with the threaded sleeve 12 to the end of the sub-rod body 11, and then connect the other sub-rod body 11 to the other end of the threaded sleeve 12; The second elastic member 6 can prevent the screw sleeve 12 from rotating when it is in a compressed state.

In this embodiment, an end of one of the two adjacent prefabricated components 100 is provided with a receiving groove 101 , and the first elastic member 4 , the third stopper 5 and the second elastic member 6 are all arranged in the receiving groove 101 middle. Specifically, as shown in Figures 2 and 3, the second elastic member 6 is provided with a stepped first mounting hole 61 and a second mounting hole 62, the screw sleeve 12 is provided in the first mounting hole 61, and the third stopper The stopper 5 is disposed in the second mounting hole 62 , and the threaded sleeve 12 is also provided with a third mounting hole 63 for the sub-rod body 11 to pass through. Since the first elastic member 4 and the second elastic member 6 are both arranged in the receiving groove 101, in this embodiment, the first elastic member 3 is a rubber pad. When the first elastic member 3 and the second elastic member 6 are pressed, The accommodating groove 101 can exert constraints on the outer sides of the first elastic member 3 and the second elastic member 6 that have large deformations, thereby improving the compressive strength of the first elastic member 3 and the second elastic member 6, thus improving the quality of the assembled prefabricated components. Use the connection strength of the connecting structure. In addition, the second elastic member 6 can also activate the waterproof function at the connection node between the two sub-rod bodies 11 to avoid corrosion of the screw sleeve and the end of the sub-rod bodies 11 and ensure the reliability of the connection between the sub-rod bodies 11 .

In order to facilitate clamping of each prefabricated component 100 , in this embodiment, at least one of the first stopper 2 and the second stopper 3 is a nut screwed to the outside of the connecting rod 1 .

To facilitate construction, in this embodiment, each third stopper 5 is a nut screwed to the outside of the connecting rod 1 . The first elastic member 3 can be pressurized by rotating the third stopper 5. In other embodiments of the present invention, the third stopper 5 can be a pressure ring sleeved on the outside of the connecting rod 1. By pressing The pressing device presses the pressing ring on the first elastic member 3 and then welds the pressing ring on the connecting rod 1 .

In order to improve the waterproofness between two adjacent prefabricated components 100 , elastic sealing rings 8 are sandwiched between two adjacent prefabricated components 100 .

An above-mentioned construction method for connecting structures for prefabricated components, including the following steps;

Step S1: Pass the rear end of the connecting rod 1 through the first prefabricated component 100;

Step S2: Install the first elastic member 4 and the third stopper 5 at the rear end of the connecting rod 1 so that the third stopper 5 presses the first elastic member 4 forward and fix the third stopper 5 On connecting rod 1;

Step S3, install the second elastic member 6 and another prefabricated component 100 at the rear end of the connecting rod 1;

Step S4: Repeat steps S2 and S3 until all prefabricated components 100 are installed;

Step S5: Install the second stopper 3 on the rear end of the connecting rod 1.

Among them: in step S1, pass the rear end of the first sub-rod body 11 through the first prefabricated component 100;

Step S2 includes:

Step S21, install the first elastic member 4 on the rear end of the first sub-rod body 11;

Step S22, screw the third stopper 5 to the rear end of the first sub-rod body 11;

Step S23, connect the thread sleeve 12 and the second elastic member 6 at the rear end of the first sub-rod body 11;

Step S24: Connect another sub-rod body 11 to the other end of the threaded sleeve 12.

In this embodiment, the prefabricated component 11 is a lining ring for a prefabricated subway station, and a mounting hole for the rod body 1 to pass through is made in the lining ring in the form of a pre-embedded pipe body.

In summary, the connection structure for prefabricated components of the present invention is used to connect multiple prefabricated components 100 arranged in sequence from front to back. As shown in Figures 1 and 2, the connection structure for prefabricated components of the present invention includes connecting rods. 1. A first stopper 2 is provided on the outside of the front end of the connecting rod 1. The rear end of the connecting rod 1 passes through each prefabricated component 100 from front to back and is connected to a second stopper 3. Each prefabricated component 100 is sandwiched between Between the first stopper 2 and the second stopper 3; on the outer side of the connecting rod 1 between the two adjacent prefabricated components 100, there are first elastic members 4 that contact in sequence from front to back. , the third stopper 5 and the second elastic member 6, the front end of each first elastic member 4 is in contact with the rear end of the prefabricated component 100 adjacent to itself, and the rear end of each second elastic member 6 is in contact with the adjacent prefabricated component 100 in front of itself. The prefabricated components 100 at the rear end are in contact. The connecting rod 1 is inserted into each prefabricated component 100, which greatly increases the length of the connecting rod 1. When the connecting rod 1 is elastically deformed under tension, the compression of each first elastic member 4 or the second elastic member 6 makes the connecting rod 1 When extended, it can move relative to each prefabricated component 100, so that the elastic deformation of the connecting rod 1 can be evenly distributed to the entire length of the connecting rod 1, thereby increasing the allowable elastic deformation of the connecting rod 1 and reducing the stress on the prefabricated component 100. There is a risk of plastic deformation when tensile force is applied. The arrangement of the first elastic member 4 and the second elastic member 6 can not only clamp each prefabricated component 100 so that each prefabricated component 100 remains fixed, but also buffer the vibration of each prefabricated component 100, so that each prefabricated component 100 can be Seismic resistance of prefabricated elements.

The above are only preferred embodiments of the present invention. It should be noted that those of ordinary skill in the art can also make several improvements and substitutions without departing from the technical principles of the present invention. These improvements and substitutions It should also be regarded as the protection scope of the present invention.

Claims (10)

1. A connection structure for prefabricated components, used to connect multiple prefabricated components (100) arranged sequentially from front to back, characterized in that the connection structure for prefabricated components includes: Connecting rod (1), a first stopper (2) is provided outside the front end of the connecting rod (1), and the rear end of the connecting rod (1) passes through each of the prefabricated components (100) from front to back. ) and is connected to a second stopper (3), and each of the prefabricated components (100) is sandwiched between the first stopper (2) and the second stopper (3); The outer side of the connecting rod (1) is located between the two adjacent prefabricated components (100), and is provided with a first elastic member (4) and a third stopper that contact in sequence from front to back. (5) and the second elastic member (6), the front end of each first elastic member (4) is in contact with the rear end of the prefabricated component (100) adjacent to its front, and each second elastic member The rear ends of (6) are all in contact with the prefabricated components (100) adjacent to their rear ends. 2. The connection structure for assembled prefabricated components according to claim 1, characterized in that the connecting rod (1) includes a plurality of sub-rod bodies (11) arranged sequentially from front to back, and two adjacent said connecting rods (11) are arranged in sequence from front to back. Thread sleeves (12) are arranged between the sub-rod bodies (11), and the end of one of the two adjacent sub-rod bodies (11) is screwed to one end of the screw hole of the screw sleeve (12). , the end of the other of the two adjacent sub-rod bodies (11) is screwed to the other end of the screw hole of the thread sleeve (12). 3. The connection structure for assembled prefabricated components according to claim 2, characterized in that a third elastic member (7) is provided in the middle of the screw hole of each screw sleeve (12), and the third elastic member The two ends of the member (7) are respectively in contact with the ends of the two adjacent sub-rod bodies (11) front and rear. 4. The connection structure for assembled prefabricated components according to claim 2, characterized in that a polygonal anti-rotation structure is provided on the outside of each screw sleeve (12), and a polygonal anti-rotation structure is provided in each second elastic member (6). Each screw sleeve (12) is provided with a first mounting hole (61) matching the polygonal anti-rotation structure, and each screw sleeve (12) is respectively arranged in the first mounting hole (61) adjacent to itself. 5. The connection structure for assembled prefabricated components according to claim 1, characterized in that an end of one of the two adjacent prefabricated components (100) is provided with a receiving groove (101), and the The first elastic member (4), the third stopper (5) and the second elastic member (6) are all arranged in the receiving groove (101). 6. The connection structure for assembled prefabricated components according to claim 1, characterized in that at least one of the first stopper (2) and the second stopper (3) is screwed on Nut on the outside of the connecting rod (1). 7. The connection structure for assembled prefabricated components according to claim 1, characterized in that each of the third stoppers (5) is a nut screwed to the outside of the connecting rod (1). 8. The connection structure for assembled prefabricated components according to claim 1, characterized in that elastic sealing rings (8) are sandwiched between two adjacent prefabricated components (100). 9. A construction method for a connection structure for prefabricated components according to any one of claims 1 to 8, characterized in that it includes the following steps; Step S1: Pass the rear end of the connecting rod (1) through the first prefabricated component (100); Step S2: Install the first elastic member (4) and the third stopper (5) at the rear end of the connecting rod (1), so that the third stopper (5) presses the third stopper forward. An elastic member (4), and fixes the third stopper (5) on the connecting rod (1); Step S3: Install the second elastic member (6) and another prefabricated component (100) at the rear end of the connecting rod (1); Step S4: Repeat steps S2 and S3 until all prefabricated components (100) are installed; Step S5: Install the second stopper (3) on the rear end of the connecting rod (1). 10. The construction method of connecting structures for prefabricated components according to claim 9, characterized in that: In the step S1, pass the rear end of the first sub-rod body (11) through the first prefabricated component (100); The step S2 includes: Step S21, install the first elastic member (4) on the rear end of the first sub-rod body (11); Step S22, screw the third stopper (5) to the rear end of the first sub-rod body (11); Step S23, connect the thread sleeve (12) and the second elastic member (6) at the rear end of the first sub-rod body (11); Step S24: Connect another sub-rod body (11) to the other end of the threaded sleeve (12).