A connection node and construction method for a PC wall, curtain wall and steel structure

Abstract

The present application provides a connection node and a construction method for a PC wall, a curtain wall and a steel structure, relating to the technical field of prefabricated buildings. A connection node for a PC wall, a curtain wall and a steel structure includes a PC wall, a curtain wall, a steel beam, a first connection component, a second connection component and a plurality of fastening components; the first connection component is connected to the top side of the floor slab, the steel beam is connected to the bottom side of the floor slab, and the second connection component is connected to the steel beam; the PC wall includes an upper PC wall, a lower PC wall and a side PC wall, the upper PC wall is connected to the first connection component, and the lower PC wall is connected to the second connection component; the side PC wall is connected to the side wall of the floor slab, and the curtain wall is connected to the side PC wall; one fastening component passes through the curtain wall, the side PC wall, the first connection component and the upper PC wall and is connected, and the other fastening component passes through the curtain wall, the side PC wall, the second connection component and the lower PC wall and is connected. The present application can improve the connection stability between the PC wall, the curtain wall and the steel structure.

Description

Technical Field

[0001] This application relates to the technical field of prefabricated buildings, and in particular to a connection node and construction method for PC walls, curtain walls and steel structures. Background Art

[0002] A prefabricated building refers to a building in which some or all components are prefabricated in a factory and assembled at the construction site through reliable connection methods. The basic principle of prefabricated buildings is to optimize the construction process and efficiently utilize resources through standardized design, factory production and assembly construction. PC walls (prefabricated concrete walls), curtain walls and steel structures are widely used in prefabricated buildings due to their respective characteristics. PC walls have the advantages of high manufacturing accuracy and fast production efficiency. Curtain walls are favored for their beautiful appearance and excellent heat insulation performance. Steel structures have become the main choice for large-span buildings due to their light self-weight and high strength. However, the effective combination of the three has become an important link in construction engineering, especially the need to solve the problem of their efficient connection to improve construction quality and speed and reduce project costs.

[0003] In the related art, when connecting PC walls, curtain walls and steel structures, usually after the floor slab is formed, a steel structure framework is set on the floor slab to fix the PC wall, and then the framework of the curtain wall is fixed on the PC wall to achieve the installation of the curtain wall.

[0004] The curtain wall is affected by wind pressure and its own gravity. The force received by the curtain wall is transmitted to the PC wall, making the PC wall bear a large force, which affects the connection stability between the PC wall, the curtain wall and the steel structure. Therefore, the connection strength between the PC wall, the curtain wall and the steel structure in the related art needs to be improved. Summary of the Invention

[0005] In order to improve the connection stability between the PC wall, the curtain wall and the steel structure, this application provides a connection node and construction method for the PC wall, the curtain wall and the steel structure.

[0006] In a first aspect, this application provides a connection node for a PC wall, a curtain wall and a steel structure, and adopts the following technical solution:

[0007] A connection node for a PC wall, a curtain wall and a steel structure includes a PC wall, a curtain wall, a steel beam, a first connection component, a second connection component and a fastening component; the first connection component is used to connect with the top side of the floor slab, the steel beam is connected with the bottom side of the floor slab, and the second connection component is connected with the steel beam;

[0008] The PC wall includes an upper-layer PC wall, a lower-layer PC wall, and a side PC wall. The upper-layer PC wall is connected to the first connection component, the lower-layer PC wall is connected to the second connection component, and the side PC wall is connected to the side wall of the floor slab; the curtain wall is connected to the side PC wall;

[0009] A plurality of fastening components are provided. One fastening component passes through the curtain wall, the side PC wall, the first connection component, and the upper-layer PC wall and is connected, and the other fastening component passes through the curtain wall, the side PC wall, the second connection component, and the lower-layer PC wall and is connected.

[0010] By adopting the above technical solutions, the connection between the upper-layer PC wall and the first connection component and the connection between the lower-layer PC wall and the second connection component ensure the stability and bearing capacity of the connection node in the vertical direction. The connection between the side PC wall and the side wall of the floor slab enhances the lateral stability of the connection node. By connecting the curtain wall, the side PC wall, the first connection component, and the upper-layer PC wall, and the curtain wall, the side PC wall, the second connection component, and the lower-layer PC wall through the fastening components, the overall strength and stability of the connection node are further improved, the force of the curtain wall is effectively transmitted and dispersed, and the stress burden of a single component is reduced.

[0011] Optionally, the first connection component includes a connecting angle steel, an installation groove body, and a connecting piece. The installation groove body is connected to the connecting angle steel, the connecting angle steel is connected to the floor slab, the upper-layer PC wall is inserted into the installation groove body, and the connecting piece connects the installation groove body and the upper-layer PC wall.

[0012] By adopting the above technical solutions, the upper-layer PC wall is inserted into the installation groove body, which is convenient for positioning and installing the upper-layer PC wall. The connecting angle steel is connected to the floor slab, thereby realizing the stable connection between the upper-layer PC wall and the floor slab. This design can improve the connection strength between the upper-layer PC wall and the floor slab, ensure that the upper-layer PC wall is not easily displaced or detached under external loads, and enhance the stability of the entire connection node.

[0013] Optionally, a connecting rod is connected to the connecting angle steel. The connecting rod passes through the floor slab and is connected to the steel beam.

[0014] By adopting the above technical solutions, one end of the connecting rod is connected to the connecting angle steel, and the other end passes through the floor slab and is connected to the steel beam, realizing the stable connection between the first connection component and the steel beam, and improving the connection strength and stability. This connection method enhances the bearing capacity of the entire connection node, reduces the problem of excessive stress on a single component, and further improves the overall safety and durability of the prefabricated building.

[0015] Optionally, the side PC wall is pre-embedded with anchor fittings, and the anchor fittings penetrate through the side of the floor slab.

[0016] By adopting the above technical solution, the side PC wall is pre-embedded with anchor fittings, and the anchor fittings penetrate through the side of the floor slab, thereby enhancing the connection stability between the side PC wall and the floor slab.

[0017] Optionally, the curtain wall includes a curtain wall skeleton, curtain wall panels, and connection bearing seats. The curtain wall panels are connected to the curtain wall skeleton, and the connection bearing seats are respectively connected to the curtain wall skeleton and the anchor fittings.

[0018] By adopting the above technical solution, the setting of the connection bearing seats realizes the reliable connection between the curtain wall skeleton and the anchor fittings, improves the connection strength between the curtain wall and the side PC wall. When the curtain wall is under the action of wind pressure and its own gravity, part of the load can be transmitted to the floor slab through the connection bearing seats and the anchor fittings, enhancing the stability of the overall connection nodes.

[0019] Optionally, the side PC wall includes a web and wing plates. There are two wing plates, and the web is connected between the two wing plates; one side of each wing plate abuts against the first connection component, the steel beam, and the second connection component respectively, and the other side of the wing plate abuts against the curtain wall.

[0020] By adopting the above technical solution, one side of the wing plate abuts against the first connection component, the steel beam, and the second connection component respectively, and the other side of the wing plate abuts against the curtain wall, which can transmit the force of the curtain wall to the first connection component, the floor slab, the steel beam, and the second connection component, improving the overall strength and load-bearing capacity of the connection nodes.

[0021] Optionally, the side PC wall further includes a bottom plate, and the bottom plate is respectively connected to the bottom sides of the web and the wing plates. Sealant is filled on both sides of the side PC wall.

[0022] By adopting the above technical solution, the setting of the bottom plate enhances the overall structural stability of the side PC wall. The sealant is filled on both sides of the side PC wall, effectively isolating the intrusion of external moisture and air, improving the sealing performance between the side PC wall and the curtain wall. At the same time, it seals and protects the connection parts between the side PC wall, the upper PC wall, and the lower PC wall, reducing the rusting of the first connection component, the second connection component, the connection bearing seat, and the anchor fittings, thereby enhancing the durability and waterproof performance of the entire connection node.

[0023] Optionally, two sealing grooves are formed on the bottom plate, the web, and the wing plates, and the two sealing grooves are respectively located on both sides of the web, and the sealing grooves are used to accommodate the sealant.

[0024] By adopting the above technical solution, injecting sealant into the seal grooves on both sides of the web can effectively improve the sealing performance between the side PC wall and the curtain wall, as well as between the side PC wall, the upper PC wall and the lower PC wall, prevent moisture and impurities from infiltrating, enhance the corrosion resistance of the structure, reduce the influence of the external environment on the connection nodes, and thus enhance the overall stability and durability of the connection nodes.

[0025] Optionally, the curtain wall further includes a sealing backing plate, one side of the sealing backing plate is connected to the curtain wall frame, and the sealing backing plate abuts against the side PC wall.

[0026] By adopting the above technical solution, the sealing backing plate is connected to the curtain wall frame and abuts against the side PC wall, which can effectively improve the sealing performance between the curtain wall and the side PC wall and reduce the occurrence of sealant leakage between the curtain wall and the side PC wall.

[0027] In a second aspect, the present application further provides a construction method for the connection nodes of a PC wall, a curtain wall and a steel structure, including the following steps:

[0028] S1: Provide a first connection component, a second connection component and a steel beam; embed a connecting rod in the floor slab, connect the steel beam to the bottom side of the floor slab, connect the steel beam to the connecting rod, connect the second connection component to the steel beam; connect the first connection component to the connecting rod so that the first connection component is connected to the top side of the floor slab;

[0029] S2: Provide an upper PC wall and a lower PC wall, connect the upper PC wall to the first connection component, and connect the lower PC wall to the second connection component;

[0030] S3: Provide a side PC wall, an anchor is embedded in the side PC wall, and the anchor is passed through the side part of the floor slab;

[0031] S4: Provide a curtain wall and connect the curtain wall to the anchor;

[0032] S5: Provide a plurality of fastening components, one fastening component connects the first connection component, the upper PC wall, the side PC wall and the curtain wall, and the other fastening component connects the second connection component, the lower PC wall, the side PC wall and the curtain wall;

[0033] S6: Sealing grooves are formed on both sides of the side PC wall, sealant is injected into the sealing grooves, the sealant seals between the side PC wall and the curtain wall, and the sealant seals between the side PC wall, the first connection component and the second connection component.

[0034] In summary, the present application includes at least one of the following beneficial effects:

[0035] 1. By using multiple fastening components to firmly connect the upper PC wall, the lower PC wall, and the side PC wall to the curtain wall respectively, an integrated connection structure is formed, effectively dispersing the forces on the curtain wall under the action of wind pressure and gravity, and enhancing the overall connection strength and stability between the PC wall, the curtain wall, and the steel structure;

[0036] 2. The first connection component is connected to the top side of the floor slab, the steel beam is connected to the bottom side of the floor slab, the second connection component is connected to the steel beam, and the side PC wall is connected to the side of the floor slab through the anchor, constructing a coordinated support system, enhancing the bearing capacity of the connection nodes, and effectively reducing the force burden on individual components;

[0037] 3. Seal grooves are provided on both sides of the side PC wall and sealant is injected, achieving reliable sealing between the side PC wall and the curtain wall, preventing rainwater penetration, strengthening the connection sealing between the side PC wall and the upper PC wall and the lower PC wall, further enhancing the durability and waterproof performance of the overall structure, and also enhancing the heat insulation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of the overall structure of the connection node of the PC wall, curtain wall, and steel structure in the embodiment of the present application without injecting sealant;

[0039] Figure 2 is Figure 1 an enlarged schematic diagram of part A in

[0040] Figure 3 is a schematic diagram of the structure of the side PC wall in the embodiment of the present application;

[0041] Figure 4 is a schematic diagram of the structure of the connection node after injecting sealant in the embodiment of the present application.

[0042] Description of the reference numerals: 1, floor slab; 2, PC wall; 21, upper PC wall; 22, side PC wall; 221, web; 2211, seal groove; 222, flange; 223, bottom plate; 23, lower PC wall; 3, curtain wall; 31, curtain wall skeleton; 32, curtain wall panel; 33, connection bearing seat; 34, seal pad; 4, steel beam; 5, anchor; 6, first connection component; 61, connecting angle steel; 62, installation groove body; 63, connecting piece; 7, second connection component; 8, fastening component; 81, connecting screw; 82, connecting nut; 9, connecting rod; 100, sealant. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The following Figures 1 to 4 is a further detailed description of the present application.

[0044] An embodiment of the present application provides a connection node for a PC wall, a curtain wall, and a steel structure.

[0045] Reference Figure 1 and Figure 2 As shown in FIGS. 1 and 2, the connection node for the PC wall, the curtain wall, and the steel structure includes a PC wall 2, a curtain wall 3, a steel beam 4, a first connection assembly 6, a second connection assembly 7, and a fastening assembly 8. The first connection assembly 6 is located on the upper side of the floor slab 1. The first connection assembly 6 includes a connecting angle steel 61, a mounting groove body 62, and a connecting member 63. The mounting groove body 62 is fixedly connected to the connecting angle steel 61, and the connecting angle steel 61 is connected to the floor slab 1. The connecting angle steel 61 is fixedly connected with a connecting rod 9, and the connecting rod 9 is embedded in the floor slab 1. The steel beam 4 is fixedly connected to the bottom side of the floor slab 1, and the connecting rod 9 is fixedly connected to the steel beam 4.

[0046] Reference Figure 1 and Figure 2 As shown in FIGS. 3 and 4, the PC wall 2 includes an upper-layer PC wall 21, a side PC wall 22, and a lower-layer PC wall 23. The bottom side of the upper-layer PC wall 21 passes through the mounting groove body 62. By passing the connecting member 63 through the mounting groove body 62, the upper-layer PC wall 21, and the connecting angle steel 61, the connection between the upper-layer PC wall 21 and the first connection assembly 6 is realized. In this embodiment, the connecting member 63 specifically uses bolts and nuts.

[0047] Reference Figure 1 and Figure 2 As shown in FIGS. 5 and 6, the second connection assembly 7 has the same structure as the first connection assembly 6. The second connection assembly 7 is fixedly connected to the steel beam 4, and the top side of the lower-layer PC wall 23 passes through the second connection assembly 7 and is fixedly connected. An anchor 5 is embedded in the side PC wall 22, and the anchor 5 passes through the side of the floor slab 1, realizing the fixation of the side PC wall 22 to the floor slab 1.

[0048] Reference Figure 1 and Figure 2 As shown in FIGS. 7 and 8, the curtain wall 3 includes a curtain wall frame 31, a curtain wall panel 32, a connection bearing seat 33, and a sealing gasket 34. The curtain wall panel 32 is fixedly connected to the curtain wall frame 31, adjacent curtain wall frames 31 are fixedly connected, and adjacent curtain wall panels 32 are spliced. The connection bearing seat 33 is fixedly connected to the curtain wall frame 31 and the anchor 5 respectively, realizing the connection between the curtain wall 3 and the side PC wall 22. The sealing gasket 34 is fixedly connected to the curtain wall frame 31, and the sealing gasket 34 covers the connection part of adjacent curtain wall frames 31, reducing the occurrence of water seepage at the connection part of adjacent curtain wall frames 31.

[0049] Reference Figure 1 and Figure 2, the fastening assembly 8 includes a connecting screw 81 and a connecting nut 82. There are multiple fastening assemblies 8. One of the fastening assemblies 8 corresponds to the upper PC wall 21. The connecting screw 81 passes through the curtain wall skeleton 31, the side PC wall 22, the first connecting assembly 6, and the upper PC wall 21, and the connecting nut 82 locks the connecting screw 81, thereby improving the connection stability of the curtain wall 3, the side PC wall 22, the first connecting assembly 6, and the upper PC wall 21. Another fastening assembly 8 corresponds to the lower PC wall 23, thereby connecting the curtain wall 3, the side PC wall 22, the second connecting assembly 7, and the lower PC wall 23.

[0050] Reference Figure 1 and Figure 3 , the side PC wall 22 includes a web 221, wing plates 222, and a bottom plate 223. There are two wing plates 222. The web 221 is located between the two wing plates 222. The web 221 is fixedly connected to the two wing plates 222 respectively. The bottom plate 223 is fixedly connected to the bottom side of the web 221 and the bottom side of the wing plates 222 respectively. Two sealing grooves 2211 are formed between the web 221, the wing plates 222, and the bottom plate 223, and the two sealing grooves 2211 are respectively located on both sides of the web 221. One side of the wing plate 222 abuts against the sealing gasket 34, and the other side of the wing plate 222 abuts against the first connecting assembly 6, the floor slab 1, and the second connecting assembly 7 respectively.

[0051] Reference Figure 1 and Figure 4 , when sealant 100 is injected into the sealing groove 2211, the sealant 100 can seal between the side PC wall 22 and the curtain wall 3, and can also seal between the side PC wall 22 and the first connecting assembly 6, the floor slab 1, the steel beam 4, and the second connecting assembly 7 respectively, reducing the occurrence of rust and water seepage, and can also improve the heat insulation performance and reduce the loss of indoor heat.

[0052] The embodiment of the present application also provides a construction method for the connection node of the PC wall, curtain wall, and steel structure, including the following steps:

[0053] S1: Provide the first connecting assembly 6, the second connecting assembly 7, and the steel beam 4. Embed the connecting rod 9 in the floor slab 1, connect the steel beam 4 to the bottom side of the floor slab 1, connect the steel beam 4 to the connecting rod 9, and connect the second connecting assembly 7 to the steel beam 4; connect the first connecting assembly 6 to the connecting rod 9 so that the first connecting assembly 6 is connected to the top side of the floor slab 1;

[0054] S2: Provide the upper PC wall 21 and the lower PC wall 23, connect the upper PC wall 21 to the first connecting assembly 6, and connect the lower PC wall 23 to the second connecting assembly 7;

[0055] S3: Provide a side PC wall 22, in which an anchor 5 is embedded, and pass the anchor 5 through the side of the floor slab 1;

[0056] S4: Provide a curtain wall 3, connect the curtain wall 3 to the anchor 5, and realize the connection between the curtain wall 3 and the side PC wall 22;

[0057] S5: Provide a plurality of fastening components 8. One fastening component 8 connects the first connection component 6, the upper PC wall 21, the side PC wall 22 and the curtain wall 3, and the other fastening component 8 connects the second connection component 7, the lower PC wall 23, the side PC wall 22 and the curtain wall 3;

[0058] S6: Sealing grooves 2211 are formed on both sides of the side PC wall 22. Inject sealant 100 into the sealing grooves 2211. The sealant 100 seals between the side PC wall 22 and the curtain wall 3, and the sealant 100 seals between the side PC wall 22, the first connection component 6 and the second connection component 7.

[0059] The implementation principle of the connection node and construction method of a PC wall, a curtain wall and a steel structure in an embodiment of the present application is as follows: First, connect the steel beam 4 to the bottom side of the floor slab 1, connect the connecting rod 9 to the steel beam 4, then connect the second connection component 7 to the steel beam 4, connect the first connection component 6 to the top side of the floor slab 1, and then connect the connecting rod 9 to the first connection component 6. Subsequently, connect the upper PC wall 21 to the first connection component 6, and then connect the lower PC wall 23 to the second connection component 7. Subsequently, connect the side PC wall 22 to the side wall of the floor slab 1 through the anchor 5, and then connect the curtain wall 3 to the side PC wall 22. One fastening component 8 connects the curtain wall 3, the side PC wall 22, the first connection component 6 and the upper PC wall 21, and the other fastening component 8 connects the curtain wall 3, the side PC wall 22, the second connection component 7 and the lower PC wall 23. Finally, inject sealant 100 into the sealing grooves 2211 on both sides of the web 221, and the sealant 100 seals both sides of the web 221.

[0060] The above are all the preferred embodiments of the present application. Without limiting the protection scope of the present application accordingly, therefore: Any equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A connection node between a PC wall, a curtain wall and a steel structure, characterized in that: The invention comprises a PC wall (2), a curtain wall (3), a steel beam (4), a first connection component (6), a second connection component (7) and a fastening component (8); the first connection component (6) is used to be connected to the top side of the floor plate (1), the steel beam (4) is connected to the bottom side of the floor plate (1), and the second connection component (7) is connected to the steel beam (4); The PC wall (2) comprises an upper PC wall (21), a lower PC wall (23) and a side PC wall (22); the upper PC wall (21) is connected to the first connection component (6), and the lower PC wall (23) is connected to the second connection component (7); the side PC wall (22) is connected to the side wall of the floor slab (1), and the curtain wall (3) is connected to the side PC wall (22); A plurality of the fastening components (8) are provided, one of the fastening components (8) passes through the curtain wall (3), the side PC wall (22), the first connecting component (6) and the upper PC wall (21) and is connected thereto, and another of the fastening components (8) passes through the curtain wall (3), the side PC wall (22), the second connecting component (7) and the lower PC wall (23) and is connected thereto; The side PC wall (22) comprises a web (221) and a wing plate (222), two wing plates (222) are provided, and the web (221) is connected between the two wing plates (222); one side of the wing plate (222) is respectively in contact with the first connection component (6), the steel beam (4) and the second connection component (7), and the other side of the wing plate (222) is in contact with the curtain wall (3); The side PC wall (22) further comprises a bottom plate (223), wherein the bottom plate (223) is respectively connected to the bottom sides of the web plate (221) and the wing plate (222), and both sides of the side PC wall (22) are filled with sealant (100); The bottom plate (223), the web plate (221) and the wing plate (222) are formed with two sealing grooves (2211), the two sealing grooves (2211) being respectively located on two sides of the web plate (221), and the sealing grooves (2211) are used to accommodate the sealant (100).

2. A connection node of a PC wall, a curtain wall and a steel structure according to claim 1, characterized in that: The first connection assembly (6) comprises a connection angle steel (61), a mounting groove body (62) and a connection piece (63); the mounting groove body (62) is connected to the connection angle steel (61); the connection angle steel (61) is connected to the floor slab (1); the upper PC wall (21) is inserted into the mounting groove body (62); and the connection piece (63) connects the mounting groove body (62) and the upper PC wall (21).

3. A connection node of a PC wall, a curtain wall and a steel structure according to claim 2, characterized in that: The connecting angle steel (61) is connected to a connecting rod (9), and the connecting rod (9) passes through the floor slab (1) and is connected to the steel beam (4).

4. A connection node of a PC wall, a curtain wall and a steel structure according to claim 1, characterized in that: The side PC wall (22) is pre-buried with an anchor (5), and the anchor (5) is penetrated through the side of the floor slab (1).

5. A connection node of a PC wall, a curtain wall and a steel structure according to claim 4, characterized in that: The curtain wall (3) comprises a curtain wall frame (31), a curtain wall panel (32) and a connecting bearing seat (33); the curtain wall panel (32) is connected to the curtain wall frame (31); and the connecting bearing seat (33) is respectively connected to the curtain wall frame (31) and the anchor (5).

6. A connection node of a PC wall, a curtain wall and a steel structure according to claim 5, characterized in that: The curtain wall (3) further comprises a sealing pad (34), one side of the sealing pad (34) being connected to the curtain wall frame (31), and the sealing pad (34) being in contact with the side PC wall (22).

7. A construction method for connecting nodes of PC wall, curtain wall and steel structure, characterized in that: Using the connection node of a PC wall, a curtain wall and a steel structure as claimed in claim 1 comprises the following steps: S1: providing a first connecting component (6), a second connecting component (7) and a steel beam (4); pre-embedding a connecting rod (9) in the floor slab (1), connecting the steel beam (4) to the bottom side of the floor slab (1), connecting the steel beam (4) to the connecting rod (9), and connecting the second connecting component (7) to the steel beam (4); connecting the first connecting component (6) to the connecting rod (9), so that the first connecting component (6) is connected to the top side of the floor slab (1); S2: providing an upper PC wall (21) and a lower PC wall (23), connecting the upper PC wall (21) to the first connecting component (6), and connecting the lower PC wall (23) to the second connecting component (7); S3: providing a side PC wall (22), wherein the side PC wall (22) is embedded with an anchor (5), and the anchor (5) is passed through the side of the floor slab (1); S4: providing a curtain wall (3), and connecting the curtain wall (3) to the anchor (5); S5: providing a plurality of fastening components (8), wherein one of the fastening components (8) connects the first connection component (6), the upper PC wall (21), the side PC wall (22) and the curtain wall (3), and another of the fastening components (8) connects the second connection component (7), the lower PC wall (23), the side PC wall (22) and the curtain wall (3); S6: Sealing grooves (2211) are formed on both sides of the side PC wall (22), and a sealant (100) is injected into the sealing grooves (2211). The sealant (100) seals between the side PC wall (22) and the curtain wall (3), and the sealant (100) seals between the side PC wall (22), the first connecting component (6), and the second connecting component (7).

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