Connection structure for assembling a synthetic building and method for the construction thereof

Abstract

The application discloses a connecting structure of assembled synthetic buildings and a construction method thereof, and relates to the field of building construction.The connecting structure comprises adjacent connecting walls of adjacent prefabricated building units, and a reinforcing area (4) is arranged at the two ends of the two adjacent connecting walls; a plurality of columns of vertically arranged embedded parts (5) are fixedly arranged on the opposite sides of the two adjacent connecting walls; the embedded parts (5) on the two sides are horizontally corresponding and are connected through a middle connecting part (6); the middle connecting part (6) comprises a vertical rod (62) and a plurality of middle connecting plates (61) which are fixed to the vertical rod (62) and are provided with two left and right connecting holes (63); and the embedded parts (5) on the left and right sides and the middle connecting part (6) are connected together through vertical string reinforcing bars (7) which pass through the connecting holes (63) and vertical through holes (51). The connecting structure of the assembled synthetic buildings is simple to operate and easy to realize, the overall stress of the connecting part of the adjacent walls is better, and the connecting structure can save labor and reduce construction cost.

Description

Technical Field

[0001] This invention relates to a building structure and its construction method, specifically to a structure and its construction method for connecting adjacent prefabricated building units, applicable to use in assembled buildings. Background Technology

[0002] In existing prefabricated buildings, a cast-in-place concrete zone is provided between adjacent walls of adjacent prefabricated building units. Reinforcing bars are connected and concrete is poured within this zone to link the two adjacent prefabricated building units together. However, at both ends of this cast-in-place concrete zone, due to the complex stress distribution and relatively weak structure, a reinforced concrete zone is needed to strengthen the structure. But in this reinforced concrete zone between prefabricated building units, the limited space makes tying reinforcing bars very inconvenient and inefficient, unlike the on-site reinforcement work in cast-in-place construction, requiring significantly more manual labor. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a simple and easy-to-implement connection structure for assembled and synthesized buildings and its construction method.

[0004] The technical solution of the present invention is as follows: A connection structure for assembled composite buildings includes: a first connecting wall provided on a first prefabricated building unit and a second connecting wall provided on a second prefabricated building unit; the first connecting wall and the second connecting wall are adjacent to each other and a cast-in-place concrete zone is provided between them, and the two ends of the cast-in-place concrete zone are provided with reinforced steel reinforcement zones.

[0005] In the reinforced steel reinforcement zone, the first connecting wall and the second connecting wall are fixedly provided with several rows of vertically arranged exposed embedded parts on opposite sides. The exposed part of the embedded part is provided with a vertical through hole. The embedded parts on the first connecting wall and the embedded parts on the second connecting wall are horizontally corresponding one by one and connected by the middle connector.

[0006] The central connector includes: a plurality of intermediate connecting pieces arranged vertically, and a vertical rod fixedly connected to the plurality of intermediate connecting pieces; the intermediate connecting pieces are provided with two connecting holes on the left and right sides, which are respectively perpendicular to the vertical through holes on the embedded parts of the first connecting wall and the second connecting wall, and the embedded parts on the left and right sides and the central connector are connected together by passing vertical steel bars through the connecting holes and the vertical through holes.

[0007] The embedded parts are steel sheets or steel rings that are partially embedded in the precast wall, and the embedded parts of each row of embedded parts are connected together with steel bars.

[0008] The vertical rod passes through the central hole between the two connecting holes on the left and right sides of each intermediate connecting piece and is welded and fixed to the intermediate connecting piece.

[0009] The outer edge of the connecting hole on the side of the intermediate connecting piece that connects to the embedded part of the first connecting wall is a straight edge.

[0010] The intermediate connecting piece has arc-shaped end faces on both sides where the connecting holes are provided.

[0011] The diameter of the connecting hole and the vertical through hole is 22mm to 30mm.

[0012] The construction method of the connection structure of the assembled building of the present invention includes the following steps:

[0013] Step 1: Hoist the first prefabricated building unit to the designated position and secure it.

[0014] Step 2: After passing the vertical connecting steel bars through the vertical through hole of the embedded part of the first connecting wall and the connecting hole on one side of the middle connecting part, rotate the middle connecting part to one side so that the connecting hole on the other side is close to the first connecting wall.

[0015] Step 3: Hoist the second prefabricated building unit to the designated position and secure it.

[0016] Step 4: Rotate the middle connector so that the connecting hole on one side is perpendicular to the vertical through hole of the embedded part of the second connecting wall, and then pass the vertical connecting steel bar through the connecting hole and the vertical through hole on that side.

[0017] Compared with existing technologies, the connection structure and construction method of the assembled building of the present invention uses a middle connecting piece with connecting holes on both sides to be connected to the embedded parts of the connecting walls on both sides in the reinforcement densification zone between two adjacent prefabricated building units by vertically connecting steel bars. As a result, the operation is simple and easy to implement on site, and it is not affected by narrow spaces. It can save labor, reduce construction costs, and improve construction efficiency, achieving the same effect as on-site steel bar tying in cast-in-place buildings. In addition, under normal circumstances, the first and second prefabricated building units are non-structural walls and do not bear structural loads. Only the middle cast-in-place part bears structural loads. After using the connection structure of the present invention, the non-structural walls on both sides can also participate in structural loads, resulting in better overall load-bearing capacity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection between adjacent prefabricated building units;

[0019] Figure 2 This is a vertical cross-sectional view of the first connecting wall 11 in the reinforced zone;

[0020] Figure 3 This is a horizontal cross-sectional view of the first connecting wall 11 in the reinforced zone;

[0021] Figure 4 This is a vertical cross-sectional view of the middle connector 6 connected to the embedded part 5 of the first connecting wall 11;

[0022] Figure 5 This is a horizontal cross-sectional view of the middle connector 6 connected to the embedded part 5 of the first connecting wall 11.

[0023] Figure 6 This is a vertical cross-sectional view of the middle connector 6 connected to the embedded parts 5 of the first connecting wall 11 and the second connecting wall 21.

[0024] Figure 7 This is a horizontal cross-sectional view of the middle connector 6 connected to the embedded parts 5 of the first connecting wall 11 and the second connecting wall 21.

[0025] Figure 8 This is an elevation view of the central connector 6;

[0026] Figure 9 This is a plan view of the central connector 6;

[0027] Figure 10 for Figure 6 Enlarged view of point A in the middle. Implementation

[0028] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings.

[0029] like Figure 1 , Figure 6 and Figure 7 As shown, the connection structure of the assembled building of the present invention includes: an adjacent first connecting wall 11 and a second connecting wall 21, an embedded part 5 fixedly disposed on the opposite side of the first connecting wall 11 and the second connecting wall 21, and a middle connecting part 6 connected to the embedded parts 5 on both sides.

[0030] In this embodiment, the first connecting wall 11 is provided on the first prefabricated building unit 1 on the left side, and the second connecting wall 21 is provided on the second prefabricated building unit 2 on the right side. The first connecting wall 11 and the second connecting wall 21 are adjacent to each other on the left and right sides and a cast-in-place concrete area 3 is provided between them. The front and rear ends of the cast-in-place concrete area 3 are provided with reinforced concrete reinforcement areas 4.

[0031] The embedded part 5 and the middle connecting part 6 are located in the reinforced concrete zone 4, such as Figure 2 and Figure 3As shown, the first connecting wall 11 has several rows of embedded parts 5 on the side facing the cast-in-place concrete area 3, with each row consisting of multiple embedded parts 5 arranged vertically at a certain distance. Similarly, the second connecting wall 21 also has several rows of vertically arranged embedded parts 5 on the side facing the cast-in-place concrete area 3. Furthermore, the embedded parts 5 on the first connecting wall 11 and the embedded parts 5 on the second connecting wall 21 are horizontally corresponding one-to-one and connected by a central connector 6.

[0032] The embedded part 5 is a steel sheet or steel ring partially embedded in the precast wall. Its exposed part is provided with a vertical through hole 51. The part of each row of embedded parts 5 embedded in the wall is connected together by vertical steel bars 8, which can strengthen the bonding strength between the embedded part 5 and the wall. In this embodiment, the embedded part 5 is a roughly rectangular steel sheet.

[0033] like Figure 8 and Figure 9 As shown, the central connector 6 includes: a plurality of intermediate connecting pieces 61 arranged vertically, and a vertical rod 62 fixedly connected to the plurality of intermediate connecting pieces 61, wherein each intermediate connecting piece 61 has two connecting holes 63 on the left and right sides. In this embodiment, the vertical rod 62 passes through a central hole 64 opened between the two connecting holes 63 on the left and right sides of each intermediate connecting piece 61 and is welded and fixed to the intermediate connecting piece 61.

[0034] like Figure 7 and Figure 10 As shown, the two connecting holes 63 on the middle connecting piece 61 correspond vertically to the vertical through holes 51 on the embedded parts 5 of the first connecting wall 11 and the second connecting wall 21, respectively. The embedded parts 5 on the left and right sides and the middle connecting part 6 are connected together by passing the vertical connecting steel bars 7 through the connecting holes 63 and the vertical through holes 51.

[0035] Preferably, such as Figure 9 As shown, the outer edge of the connecting hole 63 on the side of the intermediate connecting piece 61 that connects to the embedded part 5 of the first connecting wall 11 is a straight edge 65. The vertical connecting steel bars 7 can slide along this straight edge 65, which minimizes the error during connection compared to a rounded edge. In addition, the two end faces of the intermediate connecting piece 61 with the connecting hole 63 are rounded, which makes it easier for the intermediate connecting piece 61 to rotate in narrow spaces.

[0036] The diameter of the connecting hole 63 and the vertical through hole 51 is 22mm to 30mm. In this embodiment, the connecting hole 63 and the vertical through hole 51 have a diameter of 25mm. The intermediate connecting piece 61 is made of 12mm steel sheet. The connecting steel bar 7 is made of 16mm diameter threaded steel bar. The vertical member 62 is made of 10mm diameter steel bar.

[0037] In this embodiment, the construction method of the connection structure of the assembled building of the present invention includes the following steps:

[0038] Step 1, as follows Figure 2 and Figure 3 As shown, the first prefabricated building unit 1 is hoisted to the set position and fixed, and the front and rear ends of its first connecting wall 11 are provided with exposed embedded parts 5.

[0039] Step 2, as follows Figure 4 and Figure 5 As shown, after the vertical connecting steel bar 7 passes through the vertical through hole 51 of the embedded part 5 of the first connecting wall 11 and the connecting hole 63 on the left side of the middle connecting part 6, the middle connecting part 6 is rotated to one side so that the connecting hole 63 on the other side is close to the first connecting wall 11.

[0040] Step 3: Hoist the second prefabricated building unit 2 to the designated position and secure it;

[0041] Step 4, as follows Figure 6 and Figure 7 As shown, after rotating the middle connector 6 so that the connecting hole 63 on one side is perpendicularly aligned with the vertical through hole 51 of the embedded part 5 of the second connecting wall 21, a vertical connecting steel bar 7 is passed through the connecting hole 63 and the vertical through hole 51 on that side.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A connecting structure for assembling a synthetic building, comprising: The first connecting wall (11) is arranged on the first prefabricated building unit (1), and the second connecting wall (21) is arranged on the second prefabricated building unit (2); the first connecting wall (11) and the second connecting wall (21) are adjacent, and a cast-in-situ concrete area (3) is arranged between the first connecting wall (11) and the second connecting wall (21); the cast-in-situ concrete area (3) is provided with a steel reinforcement densification area (4) at both ends; characterized in that: At the steel reinforcement densification area (4), the first connecting wall (11) and the second connecting wall (21) are fixedly provided with a plurality of columns of exposed embedded parts (5) arranged vertically on opposite sides; the exposed part of the embedded part (5) is provided with a vertical through hole (51); the embedded part (5) on the first connecting wall (11) is horizontally corresponding to the embedded part (5) on the second connecting wall (21) and is connected through a middle connecting piece (6); The middle connecting piece (6) comprises a plurality of middle connecting pieces (61) arranged vertically and a vertical rod (62) fixedly connected with the plurality of middle connecting pieces (61); the middle connecting piece (61) is provided with two left and right connecting holes (63) and vertically corresponds to the vertical through hole (51) on the embedded part (5) of the first connecting wall (11) and the second connecting wall (21) respectively; the left and right embedded parts (5) and the middle connecting piece (6) are connected together by passing a vertical stringing steel bar (7) through the connecting holes (63) and the vertical through holes (51).

2. The connecting structure for assembling a synthetic building according to claim 1, characterized in that: The embedded part (5) is a steel sheet or a steel ring partially embedded in the prefabricated wall; the embedded part (5) is embedded in the wall; the embedded part (5) is embedded in the wall.

3. The connecting structure for assembling a synthetic building according to claim 1, characterized in that: The vertical rod (62) passes through the central hole between the left and right connecting holes (63) of each middle connecting piece (61) and is welded and fixed with the middle connecting piece (61).

4. The connecting structure for assembling a synthetic building according to claim 1, characterized in that: The outer side edge of the connecting hole (63) on the side of the middle connecting piece (61) connected with the embedded part (5) of the first connecting wall (11) is a straight line.

5. The connecting structure for assembling a synthetic building according to claim 1, characterized in that: The left and right end faces of the middle connecting piece (61) provided with the connecting hole (63) are arc-shaped.

6. The connecting structure for assembling a synthetic building according to claim 1, characterized in that: The hole diameter of the connecting hole (63) and the vertical through hole (51) is 22mm to 30mm.

7. A construction method of assembling a connecting structure of a composite building according to claim 1, characterized in that, The method comprises the following steps: Step 1, hoisting the first prefabricated building unit (1) to a designated position and fixing it; Step 2, after passing the vertical stringing steel bar (7) through the vertical through hole (51) of the embedded part (5) of the first connecting wall (11) and the connecting hole (63) on one side of the middle connecting piece (6), rotating the middle connecting piece (6) to one side so that the connecting hole (63) on the other side is close to the first connecting wall (11); Step 3, hoisting the second prefabricated building unit (2) to a designated position and fixing it; Step 4, after rotating the middle connecting piece (6) so that the connecting hole (63) on one side vertically corresponds to the vertical through hole (51) of the embedded part (5) of the second connecting wall (21), passing the vertical stringing steel bar (7) through the connecting hole (63) and the vertical through hole (51) on this side.

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