Construction and construction method of embedded UHPC connecting joint

Abstract

The application provides an embedded UHPC connecting node structure, which comprises a main structure, a curtain wall opening is formed in the main structure, a first thermal insulation layer is arranged on the side wall of the curtain wall opening, two UHPC plates are embedded in the inner wall of the curtain wall opening, the two UHPC plates are arranged in parallel, a second thermal insulation layer is fixed between the two UHPC plates, the second thermal insulation layer is connected with the first thermal insulation layer, a plurality of window holes are formed in the second thermal insulation layer and the two UHPC plates in correspondence, a glass assembly is fixed between the two UHPC plates, and the glass assembly is blocked in the window holes. The application can solve the problem that a cold bridge is easily formed between the UHPC and the main structure and the connecting position of the UHPC and the glass.

Description

Technical Field

[0001] This invention relates to the field of curtain wall technology, and in particular to an embedded UHPC connection node structure and construction method. Background Technology

[0002] In recent years, with the continuous development of ultra-high performance concrete technology, UHPC (Ultra-High Performance Concrete) has emerged as a new type of concrete and has been gradually applied in many public buildings, especially in the decoration and finishing of exterior curtain walls. UHPC has extremely high mechanical properties and durability.

[0003] When UHPC is used as an embedded exterior curtain wall, thermal bridges are easily formed between the UHPC and the main structure, as well as at the connection between the UHPC and the glass. The formation of thermal bridges not only leads to increased indoor energy consumption, but the long-term effects of condensation and frost will also damage the building structure and shorten its service life. Summary of the Invention

[0004] In view of the above, the present invention provides a structure and construction method for an embedded UHPC connection node, which can solve the problem of cold bridges easily forming between UHPC and the main structure and at the connection between UHPC and glass.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is to provide a UHPC and a main structure, which includes:

[0006] The main structure has a curtain wall opening, and a first insulation layer is provided on the side wall of the curtain wall opening;

[0007] Two UHPC panels are embedded in the inner wall of the curtain wall opening. The two UHPC panels are arranged in parallel, and a second insulation layer is fixed between the two UHPC panels. The second insulation layer is connected to the first insulation layer. Multiple window openings are correspondingly opened on the second insulation layer and the two UHPC panels. A glass assembly is fixed between the two UHPC panels, and the glass assembly blocks the window openings.

[0008] Preferably, each UHPC board comprises multiple unit boards arranged in a matrix, and each unit board has at least one window.

[0009] Preferably, the two ends of the second insulation layer extend out of the unit plate to form a flange insulation layer, and the ends of the flange insulation layer are connected to the first insulation layer.

[0010] Preferably, the first end of the flange insulation layer located at the window opening is connected to the first insulation layer, and the second end of the flange insulation layer is connected to the glass assembly.

[0011] Preferably, the cross-section of the flange insulation layer is I-shaped, and the inner sides of the ends of the two unit plates respectively form protrusions that match the belly of the flange insulation layer.

[0012] Preferably, the two unit panels are provided with tie members at the positions located on the flange insulation layer.

[0013] Preferably, two adjacent unit panels are connected by tongue and groove joints, and a water-stop strip is provided between two adjacent unit panels, the shape of which matches the shape of the two adjacent unit panels.

[0014] Preferably, a gap is formed between the main structure and the UHPC board, the first insulation layer and the second insulation layer, the gap is filled with a filler, and a sealant is provided on the outside of the filler.

[0015] This invention provides a construction method for an embedded UHPC connection node, comprising the following steps:

[0016] A curtain wall opening is made in the main structure, and a first insulation layer is provided on the side wall of the curtain wall opening;

[0017] Two parallel UHPC panels are embedded in the inner wall of the curtain wall opening, and a second insulation layer is fixed between the two UHPC panels, so that the second insulation layer is connected to the first insulation layer.

[0018] Multiple window openings are provided on the second insulation layer and the two UHPC boards respectively. A glass assembly is fixed between the two UHPC boards and the glass assembly blocks the window openings.

[0019] A further improvement of the construction method of the embedded UHPC connection node structure of the present invention is that a gap is formed between the main structure and the UHPC board, the first insulation layer and the second insulation layer.

[0020] After connecting the second insulation layer to the first insulation layer, filler is placed in the gap and sealant is placed on the outside of the filler.

[0021] The beneficial effects of this invention are as follows: The embedded UHPC connection node structure and construction method of this invention connects the second insulation layer of two UHPC panels with the first insulation layer of the main structure, forming a complete energy-saving insulation system. Furthermore, the first insulation layer of the UHPC panel is tightly bonded to the glass assembly, preventing cold bridging. The flange insulation layer has an I-shaped cross-section, and the ends of the UHPC panels have matching protrusions, which can limit the second insulation layer inside the UHPC panel, improving the overall stability of the connection structure between the UHPC panel and the second insulation layer. The two UHPC panels and the flange insulation layer are fixed together by tie rods, ensuring a stable connection between the layers and reducing misalignment caused by transportation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the embedded UHPC connection node of the present invention.

[0024] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure at point AA.

[0025] Figure 3 yes Figure 2 A magnified structural diagram of 'a' in the diagram.

[0026] Figure 4 yes Figure 1 Schematic diagram of the cross-sectional structure at point BB.

[0027] Figure 5 yes Figure 4 Enlarged structural diagram of b in the middle.

[0028] Figure 6 yes Figure 1 Schematic diagram of the cross-sectional structure at point CC.

[0029] Figure 7 yes Figure 1 Schematic diagram of the cross-sectional structure at point DD.

[0030] Figure 8 yes Figure 7 A magnified structural diagram of C.

[0031] Figure 9 yes Figure 7 A magnified structural diagram of d in the middle.

[0032] The correspondence between the reference numerals and the components in the attached drawings is as follows:

[0033] 1-UHPC board; 101-Second insulation layer; 102-Flange insulation layer; 2-Glass sub-frame; 3-Glass; 4-Main structure; 401-First insulation layer; 5-Waterstop strip; 6-Tie-up component; 7-Filler; 8-Sealant; 9-Metal edge trim; 10-Insulating mortar; 11-Sleeve; 12-Screw; 13-Angle bracket; 14-Embedded part; 15-Connecting plate; 151-First web plate; 152-Second web plate. Detailed Implementation

[0034] To facilitate understanding of the present invention, the following description is provided in conjunction with the accompanying drawings and embodiments.

[0035] Please see Figures 1 to 9 This invention provides an embedded UHPC connection node structure, including a main structure 4 and a UHPC board 1. Wherein:

[0036] like Figure 1 As shown, a curtain wall opening is provided on the main structure 4. Figure 1-3 As shown, a first insulation layer 401 is provided on the side wall of the curtain wall opening;

[0037] like Figure 1 , Figure 4 , Figure 5 As shown, there are two UHPC panels 1, arranged parallel to each other and embedded in the inner wall of the curtain wall opening. A second insulation layer 101 is fixed between the two UHPC panels 1, and the second insulation layer 101 is connected to the first insulation layer 401. Figure 1 As shown, multiple window openings are correspondingly provided on the second insulation layer 101 and the two UHPC panels 1. A glass assembly is fixed between the two UHPC panels 1, and the glass assembly blocks the window openings.

[0038] In a preferred embodiment, each UHPC board 1 includes multiple unit boards arranged in a matrix, and each unit board has at least one window.

[0039] As a preferred implementation method, such as Figure 4 As shown, unit plates 1 extend from both ends of the second insulation layer 101 to form a flange insulation layer 102, and the ends of the flange insulation layer 102 are connected to the first insulation layer 401.

[0040] As a preferred implementation method, such as Figure 2 , Figure 3As shown, the first end of the flange insulation layer 102 located at the window opening is connected to the first insulation layer 401, and the second end of the flange insulation layer 102 is connected to the glass assembly. The glass assembly includes a glass sub-frame 2 and glass 3 installed within the glass sub-frame 2, and the second end of the flange insulation layer 102 is tightly connected to the glass sub-frame 2.

[0041] In a preferred embodiment, the cross-section of the flange insulation layer 102 is I-shaped, and the inner sides of the ends of the two unit plates 1 respectively form protrusions that match the belly of the flange insulation layer.

[0042] As a preferred implementation method, such as Figure 1 , Figure 4 , Figure 5 As shown, the two unit panels 1 are provided with tie members 6 at the position of the flange insulation layer 102. The tie members 6 fix the two UHPC panels 1 and the flange insulation layer 102 to ensure a stable connection between the layers. The tie members 6 are stainless steel needle-shaped tie members.

[0043] As a preferred implementation method, such as Figure 5 As shown, two adjacent unit panels 1 are connected by tongue and groove joints, and a water-stop strip 5 is provided between the two adjacent unit panels 1. The shape of the water-stop strip 5 matches the shape of the two adjacent unit panels 1. Preferably, the end of the water-stop strip 5 is sealed with sealant 8.

[0044] like Figure 5 As shown, the flange insulation layer 102 of one of the two adjacent unit plates 1 extends into the other unit plate 1, and the protrusions of the two unit plates 1 are embedded in the belly of the flange insulation layer 102.

[0045] As a preferred implementation method, such as Figure 3 As shown, gaps are formed between the main structure 4 and the UHPC board 1, the first insulation layer 401, and the second insulation layer 101. Preferably, gaps are formed between the main structure 4 and the UHPC board 1 and the flange insulation layer 102, and the gaps are filled with filler 7, with sealant 8 on the outside of the filler 7. Preferably, a metal edge strip 9 is provided on the outside of the sealant 8, with one end of the metal edge strip 9 connected to the main structure 4 and the other end connected to the UHPC board 1.

[0046] like Figure 9 As shown, thermal insulation mortar 10 is provided between the bottom UHPC board 1 and the main structure 4, and the end of the flange insulation layer 102 is connected to the thermal insulation mortar 10. The UHPC board 1 and the main structure 4 are connected by connectors. Figure 8 and Figure 9 As shown, a sleeve 11 is pre-installed on the UHPC board 1, and corresponding openings are made on the connector, such as... Figure 9As shown, in this embodiment, the connector is a corner bracket 13, that is, a hole is opened on the side plate of the corner bracket 13, the screw 12 passes through the hole and is inserted into the sleeve 11 and fixed with a nut, and the other side plate of the corner bracket 13 is fixed to the main structure 4 by bolts. Figure 8 As shown, the other side plate of the corner bracket 13 is fixed to the main structure 4 by the embedded part 14 and the connecting plate 15. The main structure 4 has the embedded part 14 embedded in it, and the connecting plate 15 is welded to the embedded part. The first web plate 151 and the second web plate 152 are vertically connected to the connecting plate 15. The corner bracket 13 is fixed to the first web plate 151 and the second web plate 152 by bolts.

[0047] This invention provides a construction method for an embedded UHPC connection node, comprising the following steps:

[0048] A curtain wall opening is made on the main structure 4, and a first insulation layer 401 is provided on the side wall of the curtain wall opening;

[0049] Two parallel UHPC panels 1 are embedded in the inner wall of the curtain wall opening, and a second insulation layer 101 is fixed between the two UHPC panels 1, so that the second insulation layer 101 is connected to the first insulation layer 401.

[0050] Multiple window openings are provided on the second insulation layer 101 and the two UHPC1 boards respectively. Glass components are fixed between the two UHPC1 boards and the glass components block the window openings.

[0051] A further improvement of the construction method of the embedded UHPC connection node structure of the present invention is that a gap is formed between the main structure 4 and the UHPC board 1, the first insulation layer 401 and the second insulation layer 101.

[0052] After the second insulation layer 101 is connected to the first insulation layer 401, filler 7 is filled into the gap, and sealant 8 is filled into the outside of filler 7. Preferably, a metal edge strip 9 is provided on the outside of sealant 8.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An embedded UHPC connection node structure, characterized in that, include: The main structure has a curtain wall opening, and a first insulation layer is provided on the side wall of the curtain wall opening; Two UHPC panels are embedded in the inner wall of the curtain wall opening. The two UHPC panels are arranged in parallel and a second insulation layer is fixed between the two UHPC panels. The second insulation layer is connected to the first insulation layer. Multiple window openings are correspondingly opened on the second insulation layer and the two UHPC panels. A glass assembly is fixed between the two UHPC panels and the glass assembly blocks the window openings. Each UHPC board comprises multiple unit boards arranged in a matrix, and each unit board has at least one window opening; The second insulation layer extends from both ends of the unit plate to form a flange insulation layer, and the ends of the flange insulation layer are connected to the first insulation layer; The first end of the flange insulation layer located at the window opening is connected to the first insulation layer, and the second end of the flange insulation layer is connected to the glass assembly; The cross-section of the flange insulation layer is I-shaped, and the inner sides of the ends of the two unit plates respectively form protrusions that match the belly of the flange insulation layer; The flange insulation layer of one of the two adjacent unit panels extends into the other unit panel, and the protrusions of the two unit panels are embedded together into the belly of the flange insulation layer.

2. The embedded UHPC connection node structure as described in claim 1, characterized in that, The two unit plates are provided with tie members at the position of the flange insulation layer.

3. The embedded UHPC connection node structure as described in claim 1, characterized in that, The two adjacent unit panels are connected by tongue and groove joints, and a water-stop strip is provided between the two adjacent unit panels. The shape of the water-stop strip matches the shape of the two adjacent unit panels.

4. The embedded UHPC connection node structure as described in claim 1, characterized in that, A gap is formed between the main structure and the UHPC board, the first insulation layer and the second insulation layer, and the gap is filled with a filler, and the outside of the filler is provided with sealant.

5. A construction method for an embedded UHPC connection node structure as described in claim 1, characterized in that, Includes the following steps: A curtain wall opening is made in the main structure, and a first insulation layer is provided on the side wall of the curtain wall opening; Two parallel UHPC panels are embedded in the inner wall of the curtain wall opening, and a second insulation layer is fixed between the two UHPC panels, so that the second insulation layer is connected to the first insulation layer. Multiple window openings are provided on the second insulation layer and the two UHPC boards respectively. A glass assembly is fixed between the two UHPC boards and the glass assembly blocks the window openings.

6. The construction method for the embedded UHPC connection node structure as described in claim 5, characterized in that, There are gaps between the main structure and the UHPC board, the first insulation layer and the second insulation layer; After connecting the second insulation layer to the first insulation layer, filler is placed in the gap and sealant is placed on the outside of the filler.

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