CN209227836U - Prefabricated concrete structure wall-column full steel key connection structure - Google Patents

Abstract

The utility model relates to prefabricated assembled concrete structural construction field, specially a kind of prefabricated concrete structure wall-column all steel is keyed structure.The structure includes prefabricated post-wall built-in fitting, prefabricated post, precast shear wall, precast shear wall is located between two prefabricated posts, prefabricated post-wall built-in fitting between prefabricated post and precast shear wall is corresponding, passes through I-shaped column-wall connection key connection between the prefabricated post being oppositely arranged-wall built-in fitting.The utility model prefabricated post and precast shear wall complete the transmitting of wall-intercolumniation coupling part shearing, further enhance the globality of structure, anti-seismic performance is more preferable by the way that built-in fitting and I-steel shear key is arranged in precast shear wall and prefabricated post coupling part.The utility model does not include the processes such as scene grouting or concreting, and whole processes are all the in-site installation connections of prefabricated components, does not need wet construction, greatly shortens the time required for building-site is constructed, can greatly improve speed of application.

Description

Prefabricated concrete structure wall-column full steel key connection structure

【Technical field】

The utility model relates to the field of prefabricated assembled concrete structure buildings, in particular to an assembled concrete structure wall-column all-steel key connection structure.

【Background technique】

The prefabricated concrete structure has the advantages of fast construction speed, energy saving and environmental protection, and small amount of wet work on site. It has developed rapidly in China in recent years. Concrete frame-shear wall structure (referred to as frame-shear structure) is one of the main structural forms currently used in my country. Therefore, how to disassemble the connected frame-shear structure and form an assembled system has become an important issue concerned by civil engineers. In the past, the wall-to-column connection was mainly connected by steel bars and then poured concrete or grout at the connection. The construction required wet work, the construction process was cumbersome, the construction speed was slow, and the quality of the connection was not easy to guarantee. For this reason, the inventor previously invented "a prefabricated frame-shear structure bending-shear composite keyway connection structure" and "a prefabricated concrete frame shear wall keyway connection structure" and obtained authorization. In the above two patents, when dealing with joints between components, grouting connection is used, which requires wet work, and the wall-column connection has a weak ability to limit the separation of the two. For this reason, a prefabricated concrete structure wall-column all-steel key connection structure and assembly method are proposed.

【Content of utility model】

The purpose of this utility model is to provide a prefabricated concrete structure wall-column all-steel key connection structure, under the premise of ensuring the connection between various prefabricated concrete components, no wet work is required at all, and the construction speed and construction quality are greatly improved.

Technical scheme of the utility model:

A prefabricated concrete structure wall-column all-steel key connection structure, including prefabricated column-wall embedded parts, prefabricated columns, and prefabricated shear walls. The prefabricated shear wall is located between two prefabricated columns. The prefabricated column-wall embedded parts between the walls correspond to each other, and the prefabricated column-wall embedded parts set oppositely are connected by the I-shaped column-wall connection key, where:

(1) The prefabricated column-wall embedded parts are composed of ribbed steel plates and round holes. One side of the ribbed steel plates is parallel to the upper and lower ribs with an L-shaped cross section. Round holes are set on the entire ribbed steel plate, and the round holes are parallel. Arrangement, the transverse stress bars of the shear wall pass through the round holes, the ribs form grooves with the sides of the ribbed steel plates respectively, and the upper and lower grooves are opposite;

(2) The prefabricated column is composed of the longitudinal reinforcement in the prefabricated column, the prefabricated column stirrup, the vertical reinforcement sleeve and the ribbed steel plate pouring concrete. The reinforcement is connected to form a frame structure, and the bottom of the longitudinal reinforcement in each prefabricated column is equipped with a vertical reinforcement sleeve. One side of the frame structure is evenly equipped with prefabricated column-wall embedded parts from top to bottom, and the concrete is poured on the frame structure inside and outside;

(3) The prefabricated shear wall includes steel skeleton, prefabricated column-wall embedded parts and concrete. Prefabricated column-wall embedded parts are arranged on both sides of the steel skeleton, and concrete is poured on the inside and outside of the steel skeleton; the steel skeleton is the shear force Wall longitudinal stress tendons, shear wall transverse stress tendons, shear wall constrained edge member stirrups and shear wall tension bars, two rows of shear wall longitudinal stress tendons are arranged in parallel, each row of shear wall The tendons are connected by the transverse stress tendons of the shear wall, and the longitudinal tendons of the shear walls arranged oppositely are connected by the shear wall tension tendons, and the outer edges of the longitudinal stress tendons of the two rows of shear walls are parallel up and down Set up shear wall restraint edge member stirrups.

In the prefabricated concrete structure wall-column all-steel key connection structure, the I-shaped column-wall connection key 4 is composed of a vertical plate, a horizontal plate, and convex ribs, and the horizontal plates arranged above and below the vertical plate have an I-shaped structure The two ends of the top of the upper horizontal plate are integrally provided with parallel ribs, and the two ends of the bottom of the lower horizontal plate are integrally provided with parallel ribs, and the two sides of the I-shaped column-wall connection key 4 are respectively connected with the prefabricated column-wall For embedded parts connection, the I-shaped column-wall connection key is inserted and matched with the upper and lower grooves of the prefabricated column-wall embedded parts through the upper and lower convex ribs respectively.

In the prefabricated concrete structure wall-column all-steel key connection structure, a cover plate is arranged on the outside of the connection between the prefabricated column and the prefabricated shear wall, and the cover plate includes the horizontal distribution ribs of the cover plate, the longitudinal distribution ribs of the cover plate and the steel backing plate, A row of parallel and opposite transverse distribution bars of the cover plate and a row of parallel and opposite cover plate longitudinal distribution bars form a reinforcement skeleton network.

In the prefabricated concrete structure wall-column all-steel key connection structure, the steel backing plate is welded between two adjacent cover plates in the steel skeleton network, and the specific connection position corresponds to the prefabricated column and the prefabricated shear wall. Fill the center of the benzene board.

Advantage and beneficial effect of the present utility model are:

1. The main process of this utility model does not include on-site grouting or concrete pouring and other processes. All the processes are on-site installation and connection of prefabricated components, which does not require wet work, greatly shortens the time required for on-site construction, and can greatly improve construction. Speed and cost savings.

2. The prefabricated column and prefabricated shear wall of the present utility model, by setting embedded parts and I-steel shear keys at the connection part of the prefabricated shear wall and the prefabricated column, completes the transmission of the shear force of the connection part between the wall and the column, and further enhances the The integrity of the structure, better seismic performance.

3. The parts of the utility model that require high manufacturing precision, including prefabricated columns, prefabricated shear walls, prefabricated column-wall embedded parts, and I-steel shear keys, are all completed in the factory. The difficulty of on-site assembly is not high, which can save the learning cost of construction personnel and greatly improve construction efficiency.

4. The force transmission between the components of the utility model depends on the occlusion and welding of the embedded parts, which is more reliable than the force transmission structure solely relying on the weld seam.

5. The utility model adopts a large number of assembly operations, which is greatly reduced compared with the original cast-in-place operation, and meets the advantages of the prefabricated concrete structure such as energy saving, environmental protection, economical and safe green building development requirements.

Description of drawings

Figure 1 is a three-dimensional view of a vertical reinforcement sleeve.

Fig. 2 is a three-dimensional view of the prefabricated column-wall embedded parts.

Fig. 3 is a three-dimensional view of the I-shaped column-wall connection key.

Figure 4 is a three-dimensional diagram of the reinforcement arrangement in the prefabricated column.

Fig. 5 is a three-dimensional view of the binding and welding of the prefabricated column-wall embedded parts and the steel bars inside the prefabricated column.

Fig. 6 is a three-dimensional view of a prefabricated column with a prefabricated column-wall embedded part.

Fig. 7 is a three-dimensional diagram of the reinforcement arrangement in the prefabricated shear wall.

Fig. 8 is a three-dimensional view of the binding and welding of the prefabricated column-wall embedded parts and the steel bars in the prefabricated shear wall.

Fig. 9 is a three-dimensional view of a prefabricated shear wall with prefabricated column-wall embedded parts.

Figure 10 is a combination diagram of the prefabricated column with prefabricated column-wall embedded parts and the prefabricated shear wall with prefabricated column-wall embedded parts after hoisting is completed.

Fig. 11 is a three-dimensional view of the installation process between the prefabricated column-wall embedded parts between the I-shaped column-wall connection key installed between the prefabricated column and the prefabricated shear wall.

Fig. 12 is a three-dimensional view when the assembly of the I-shaped column-wall connection key between the prefabricated column and the prefabricated shear wall is completed.

Figure 13 shows the benzene board used to fill the gap between the prefabricated column and the prefabricated shear wall.

Figure 14 is a benzene plate for filling the recessed space on the side of the I-beam.

Fig. 15 is a three-dimensional view of the process of Fig. 13 being installed in Fig. 12 .

Fig. 16 is a three-dimensional view of the process of Fig. 14 being installed in Fig. 12 .

Figure 17 is a three-dimensional view of the installed benzene-filled panels between the prefabricated columns and the prefabricated shear walls.

Fig. 18 is a three-dimensional diagram of the reinforcement arrangement of the cover plate.

Fig. 19 is a three-dimensional view of the completed cover plate.

Fig. 20 is a three-dimensional view of the installation process of the cover plate.

Fig. 21 is a three-dimensional view of the completed installation of the cover plate.

Fig. 22 is a three-dimensional view after the gypsum is applied to the bolt holes of the cover plate.

In the figure, 1 vertical reinforcement sleeve; 2 ribbed steel plate; 3 round hole; 4 I-shaped column-wall connection key; 8 longitudinal reinforcement of shear wall; 9 transverse reinforcement of shear wall; 10 stirrup of shear wall constraining edge member; 11 shear wall reinforcement; Benzene plate for column-wall connection key filling; 14 steel backing plate; 15 cover plate longitudinal distribution rib; 16 cover plate transverse distribution rib; 17 cover plate; 18 prefabricated column; 19 prefabricated shear wall; board; 22 horizontal boards; 23 ribs.

Detailed ways

As shown in Figure 1-Figure 22, the prefabricated concrete structure wall-column all-steel key connection structure of the utility model mainly includes prefabricated column-wall embedded parts, prefabricated columns, prefabricated shear walls, prefabricated connection part cover plates, and The I-shaped column-wall connection keys and benzene slabs used for the connection and filling between the above components, the prefabricated column and the prefabricated column-wall embedded parts between the prefabricated shear walls correspond, and the prefabricated column-wall prefabricated The embedded parts are connected by the I-shaped column-wall connection key.

(1) As shown in Figure 2, the specific structure and production process of prefabricated column-wall embedded parts are as follows:

(1) The prefabricated column-wall embedded part is composed of a ribbed steel plate 2 and a round hole 3, one side of the ribbed steel plate 2 is set up and down in parallel with a rib plate 20 with an L-shaped cross section, and a round hole is set on the whole ribbed steel plate 3. The ribs 20 respectively form grooves with the sides of the ribbed steel plate 2, and the upper and lower grooves are opposite to each other.

As shown in Figure 3, Figure 11 and Figure 12, the I-shaped column-wall connection key 4 is composed of a vertical plate 21, a horizontal plate 22, and a rib 23, and the vertical plate 21 is provided with a horizontal plate 22 in an I-shaped shape. structure, the top ends of the upper horizontal plate 22 are integrally provided with parallel ribs 23, and the bottom ends of the lower horizontal plate are integrally provided with parallel ribs, and the two sides of the I-shaped column-wall connection key 4 are respectively connected with the -The connection of the wall embedded parts, the I-shaped column-wall connection key 4 is inserted and matched with the upper and lower grooves of the prefabricated column-wall embedded parts respectively through the upper and lower convex ribs. In addition, the upper and lower ends of both sides of the vertical plate 21 are respectively provided with reserved gaps 5 for steel bars. After the I-shaped column-wall connection key 4 is assembled, steel bars can be inserted into the reserved gaps 5 for steel bars.

(2) The number of round holes 3 is 8 in 4 groups, arranged in parallel. The diameter of the circular hole 3 is 20 mm, so as to ensure that the shear wall transverse force rib 9 can pass through the circular hole 3 .

(3) The width of the ribbed steel plate 2 needs to be 20mm smaller than the width of the prefabricated column 18 (Fig. 6) and the prefabricated shear wall 19 (Fig. 9) to prevent corrosion of the connecting steel plate.

(4) The number of I-shaped column-wall connection keys 4 (Fig. 3) is calculated and determined according to the shear force transmitted between the connected shear walls and columns.

(2) As shown in Figure 1, Figure 4 to Figure 6, the specific structure and manufacturing process of the prefabricated columns are as follows:

(1) The prefabricated column 18 is composed of the longitudinal stress bars 6 in the prefabricated column, the prefabricated column hoops 7, the vertical reinforcement sleeve 1 and the ribbed steel plate 2 pouring concrete, and the four prefabricated columns arranged in a square shape are longitudinally stressed The ribs 6 are connected by prefabricated column stirrups 7 to form a frame structure, and the bottom of each prefabricated column's inner longitudinal tendons 6 is covered with a vertical reinforcement sleeve 1, and one side of the frame structure is uniformly arranged with prefabricated columns-walls from top to bottom Embedded parts, concrete poured on the inside and outside of the frame structure.

(2) The manufacturing process of the prefabricated column 18 is as follows: firstly, insert the lower end of the longitudinal reinforcement 6 in the prefabricated column into the vertical reinforcement sleeve 1, and then bind the stirrups 7 of the precast column to complete the reinforcement arrangement in the prefabricated column.

A portion of the upper end of the longitudinal reinforcement 6 in the prefabricated column should be reserved, and the length of the reserved portion should be half the height of the vertical reinforcement sleeve 1 of the prefabricated column.

Fix the prefabricated column-wall embedded parts on the prefabricated column stirrups 7 with steel wires through the holes, and the number of prefabricated column-wall embedded parts is determined according to the shear force calculation that needs to be transmitted between the prefabricated shear wall 19 and the prefabricated column 18 , and distribute evenly along the height direction of the prefabricated columns 18.

The formwork is supported outside the steel bars in the prefabricated column 18, and concrete is poured. The concrete should be poured in the formwork to the outer surface of the prefabricated column-wall embedded part. After the concrete is solidified, the formwork is removed to complete the production of the prefabricated column.

(3) As shown in Figures 7 to 9, the concrete structure and manufacturing process of the prefabricated shear wall 19 are as follows:

(1) The prefabricated shear wall 19 mainly includes steel reinforcement skeleton, prefabricated column-wall embedded parts and concrete, prefabricated column-wall embedded parts are respectively arranged on both sides of the steel reinforcement skeleton, and concrete is poured on the inside and outside of the steel reinforcement skeleton; the steel reinforcement skeleton is The shear wall longitudinal stress bars 8, the shear wall transverse stress bars 9, the shear wall constraining edge member stirrups 10 and the shear wall tension bars 11, two rows of shear wall longitudinal stress bars 8 are arranged parallel to each other, The longitudinal stress bars 8 of each row of shear walls are connected by the transverse stress bars 9 of the shear walls, and the longitudinal stress bars 8 of the opposite shear walls are connected by the shear wall tension bars 11. The two rows of shear walls Between the edges of the longitudinal tendons 8, stirrups 10, which are edge members constrained by shear walls, are arranged in parallel up and down on the outside.

(2) The manufacturing process of the prefabricated shear wall is as follows: firstly bind the longitudinal stress bars 8 of the shear wall and the stirrups 10 of the constrained edge members of the shear wall to form the reinforcing bars of the constrained edge members, and then bind the remaining longitudinal tendons of the shear wall and The transverse stress bars 9 of the shear wall, and finally the shear wall tension bars 11 are bound to form the steel bars in the prefabricated shear wall.

The prefabricated column-wall embedded parts are fixed on the side of the shear wall by binding steel wires, and the binding steel wires pass through the reserved circular holes on the prefabricated column-wall embedded parts and are bound to the stirrups of the restraining edge members in the prefabricated shear wall , the walls are evenly distributed in the two side regions laterally.

The formwork is supported on the outside of the steel skeleton, and concrete is poured, and the concrete should be poured in the formwork to the outer surface of the embedded part of the column wall. After the concrete is solidified, the formwork is removed to complete the production of the prefabricated shear wall.

(4) As shown in Figure 18 to Figure 19, the specific structure and manufacturing process of the outer cover plate at the connection between the prefabricated column and the shear wall are as follows:

(1) A cover plate 17 is arranged on the outside of the connection between the prefabricated column 18 and the prefabricated shear wall 19. The cover plate 17 includes the horizontal distribution ribs 16 of the cover plate, the longitudinal distribution ribs 15 of the cover plate and the steel backing plate 14, and a row of parallel and opposite cover plates The plate transversely distributed ribs 16 and a row of parallel and opposite cover plate longitudinally distributed ribs 15 form a reinforcement skeleton network. The steel backing plate 14 is welded between the transversely distributed ribs 16 of two adjacent cover plates in the steel skeleton network, and the specific connection position corresponds to the center of the benzene plate filled between the prefabricated column 18 and the prefabricated shear wall 19 .

(2) The manufacturing process of the outer cover plate at the connection between the prefabricated column 18 and the prefabricated shear wall 19 is as follows: firstly, the laterally distributed ribs 16 of the cover plate and the longitudinally distributed ribs 15 of the cover plate are bound to form a steel skeleton network, and then the steel backing plate 14 is welded. The formwork is supported on the outside of the steel skeleton net, and concrete is poured, and the concrete should be poured to the outer surface of the steel skeleton net in the formwork. After the concrete is solidified, the formwork is removed, and the outer cover plate of the joint between the precast column and the shear wall is completed.

The above prefabricated components are prefabricated in the factory and then transported to the construction site for assembly. The specific hoisting process is as follows:

(1) As shown in Figure 10, for the hoisting of prefabricated columns and prefabricated shear walls, two prefabricated columns 18 and a prefabricated shear wall 19 are first hoisted in place, and the prefabricated shear wall 19 is located between the two prefabricated columns 18.

(2) As shown in Figures 11 to 12, the I-shaped column-wall connection key 4 is correspondingly inserted between the prefabricated column-wall embedded parts in the prefabricated column 18 and the prefabricated column-wall embedded parts in the prefabricated shear wall, The prefabricated column-wall embedded parts in the prefabricated column are in close contact with the prefabricated column-wall embedded parts in the prefabricated shear wall and the I-shaped column-wall connection key 4, and then welded to complete the prefabricated column 18 and the prefabricated shear wall 19 connections between connecting keys.

(3) As shown in Figures 13 to 17, insert prefabricated column-wall inter-filling benzene plates 12 into the gap between the prefabricated column-wall embedded parts and prefabricated column 18 and prefabricated shear wall 19, and then correspond The I-shaped column-wall connection key 4 side of the I-shaped column-wall connection key 4 side is installed along the shape with the benzene plate 13 for filling, and the connection of the benzene plate in the vacant position in the prefabricated column 18 and the prefabricated shear wall 19 connection part is completed.

(4) Install the outer cover plate 17 of the connection part between the prefabricated column and the shear wall outside the corresponding position of the connection part of the prefabricated column 18 and the prefabricated shear wall 19, and first install the outer cover plate of the connection part between the prefabricated column 18 and the prefabricated shear wall Place it in the corresponding vacant position of the connection part, and then pass through the steel backing plate 14 on the outer cover plate of the connection part between the front and rear corresponding prefabricated columns 18 and prefabricated shear walls 19 with interspersed steel bars, and then fix the two interspersed steel bars with nuts Complete the fixed installation of the outer cover plate 17 at the joint between the column and the shear wall. Among them, the length of interspersed steel bars should be the distance between the outer surfaces of the steel backing plate 14 on the outer cover plate of the connection between the front and rear corresponding shear walls plus the thickness of the corresponding fixing nuts on both sides.

(5) As shown in Figure 18 to Figure 22, plaster is applied to the depression of the steel backing plate 14 on the outer cover plate 17 of the connection between the column and the shear wall after all the fixed installations have been completed, so that the depression is flat and the prefabricated column is completed Connections with prefabricated shear walls.

The results of implementation show that the main process of the utility model does not include processes such as on-site grouting or concrete pouring, and all processes are on-site installation and connection of prefabricated components. Improve construction speed and save costs. For prefabricated columns and prefabricated shear walls, by setting prefabricated column-wall embedded parts and I-shaped column-wall connection keys at the connection part of prefabricated shear walls and prefabricated columns, the shear force transmission of the wall-column connection part is completed, and further The integrity of the structure is enhanced, and the seismic performance is better. The parts that require high manufacturing precision, including prefabricated columns, prefabricated shear walls, prefabricated column-wall embedded parts, and I-beam shear keys, are all completed in the factory. The difficulty of on-site assembly is not high, which can save the learning cost of construction personnel and greatly improve construction efficiency. The force transmission between the components of the utility model relies on the occlusion and welding of the embedded parts, which is more reliable than the force transmission structure solely relying on weld seams. It adopts a large number of assembly operations, which is greatly reduced compared with the original cast-in-place operation, and meets the advantages of the prefabricated concrete structure such as energy-saving, environmental protection, economical and safe green building development requirements, and has good engineering application prospects.

Claims (4)

1. a kind of prefabricated concrete structure wall-column all steel is keyed structure, which is characterized in that including prefabricated post-wall built-in fitting, Prefabricated post, precast shear wall, precast shear wall is located between two prefabricated posts, prefabricated between prefabricated post and precast shear wall Column-wall built-in fitting is corresponding, is keyed between the prefabricated post being oppositely arranged-wall built-in fitting by I-shaped column-wall connection, In:

(1) prefabricated post-wall built-in fitting is made of ribbed steel and circular hole, and the side of ribbed steel is arranged in parallel cross section up and down and is The floor of L-type, circular hole, circular hole parallel arrangement are arranged on monolith ribbed steel, and the lateral stressed muscle of shear wall passes through circular hole, floor point Groove is not formed with the side of ribbed steel, upper and lower two grooves are opposite；

(2) prefabricated post is by longitudinal stress muscle, prefabricated column tie-bar, vertical reinforcement sleeve and ribbed steel casting concrete in prefabricated post It forms, longitudinal stress muscle connects to form frame structure by prefabricated column tie-bar in four prefabricated posts of the arrangement that is square, each pre- The bottom of longitudinal stress muscle is set with vertical reinforcement sleeve in column processed, and the one side of the frame structure is uniformly arranged pre- from top to bottom Column processed-wall built-in fitting, concreting is in frame structure inner side and outer side；

(3) precast shear wall includes that framework of steel reinforcement, prefabricated post-wall built-in fitting and concrete, the two sides of framework of steel reinforcement are respectively set Prefabricated post-wall built-in fitting, concreting is in framework of steel reinforcement inner side and outer side；Framework of steel reinforcement is shear wall longitudinal stress muscle, cuts The lateral stressed muscle of power wall, shear wall confined boundary member stirrup and shearing wall lacing wire composition, two rows of shear wall longitudinal stress muscle are flat Row is oppositely arranged, by the lateral stressed muscle connection of shear wall between every row's shear wall longitudinal stress muscle, the shear wall being oppositely arranged It is connected between longitudinal stress muscle by shearing wall lacing wire, outside is set in parallel up and down between the edge of two rows of shear wall longitudinal stress muscle Set shear wall confined boundary member stirrup.

2. prefabricated concrete structure wall described in accordance with the claim 1-column all steel is keyed structure, which is characterized in that I-shaped Type column-wall connecting key is made of vertical plate, level board, convex ribs, and the level board setting up and down of vertical plate is in I-shaped structure, is located at Both ends are wholely set parallel convex ribs at the top of the level board on top, are wholely set positioned at the level board bottom both ends of lower part parallel Convex ribs, I-shaped column-wall connecting key two sides are connect with prefabricated post-wall built-in fitting respectively, and I-shaped column-wall connecting key passes through upper Two groove insertings cooperate lower two convex ribs up and down with prefabricated post-wall built-in fitting respectively.

3. prefabricated concrete structure wall described in accordance with the claim 1-column all steel is keyed structure, which is characterized in that prefabricated Cover board is set on the outside of connecting portion between column and precast shear wall, cover board include cover board cross direction profiles muscle, cover board genesis analysis muscle and Billet, the parallel opposite cover board genesis analysis muscle of a row parallel opposite cover board cross direction profiles muscle and a row form framework of steel reinforcement Net.

4. prefabricated concrete structure wall described in accordance with the claim 3-column all steel is keyed structure, which is characterized in that steel pad Plate is welded in steel reinforcement net between certain two adjacent cover board cross direction profiles muscle, specific link position correspond to prefabricated post with it is prefabricated Benzene plate center is filled between shear wall.