Embedded UHPC (Ultra High Performance Concrete) node of bare concrete outer wall and construction method thereof

Abstract

The invention discloses a fair-faced concrete outer wall embedded UHPC joint and a construction method, the joint comprises a fair-faced concrete outer wall, the fair-faced concrete outer wall is provided with a curtain wall hole, and the side wall of the curtain wall hole is provided with a first thermal insulation layer; the UHPC curtain wall assemblies are embedded in the inner wall of the curtain wall hole, each UHPC curtain wall assembly comprises two UHPC curtain wall plates arranged in parallel and a second heat preservation layer fixed between the two UHPC curtain wall plates and fixedly connected with the first heat preservation layer, and the second heat preservation layer and the two UHPC curtain wall plates are correspondingly provided with a plurality of window holes; a glass assembly is fixed between the two UHPC curtain wall plates, and the glass assembly blocks the window opening. The gaps between the bare concrete outer wall and the UHPC curtain wall assemblies and the gaps between the adjacent UHPC curtain wall assemblies are filled with the fillers, and the positions, located between the UHPC curtain wall assemblies and the outer edge of the bare concrete outer wall, of the outer sides of the fillers are connected with metal edge closing connecting pieces. The problem that UHPC is difficult to popularize in bare concrete buildings is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a UHPC node embedded in a plain concrete exterior wall and a construction method thereof. Background Art

[0002] In recent years, with the continuous development of ultra-high performance concrete technology, UHPC has emerged as a new type of concrete and has gradually been used in many public buildings. UHPC has ultra-high mechanical properties and durability, which is due to the uniformity and high strength of its microstructure. By studying and optimizing the microstructure of the material, the crack resistance, durability and damage tolerance of concrete can be improved, so that it can better cope with various complex environments and usage conditions.

[0003] At present, the application of UHPC on domestic building exterior walls is mainly decorative panels. For fair-faced concrete buildings, UHPC exterior panels will not only affect the texture of the fair-faced concrete itself, but also have relatively high construction costs. This is also the reason why UHPC is difficult to promote in fair-faced concrete buildings. Summary of the invention

[0004] In order to overcome the defects in the prior art, the present invention provides a UHPC node embedded in a plain concrete exterior wall and a construction method thereof, which optimizes UHPC and curtain wall structures, combines the two into one, and fully utilizes the unique aesthetic appearance of UHPC.

[0005] In order to achieve the above object, the present invention provides a UHPC node embedded in a plain concrete exterior wall, comprising:

[0006] A plain concrete exterior wall, wherein a curtain wall opening is formed on the plain concrete exterior wall, and a first thermal insulation layer is formed on the side wall of the curtain wall opening;

[0007] At least one group of UHPC curtain wall components embedded in the inner wall of the curtain wall opening, each group of the UHPC curtain wall components includes two UHPC curtain wall panels arranged in parallel and a second insulation layer fixedly connected between the two UHPC curtain wall panels, the second insulation layer is fixedly connected to the first insulation layer, a plurality of window holes are correspondingly opened on the second insulation layer and the two UHPC curtain wall panels, a glass component is fixed between the two UHPC curtain wall panels, and the glass component blocks the window hole;

[0008] A filler is filled in the gap between the fair-faced concrete exterior wall and the UHPC curtain wall assembly and between adjacent UHPC curtain wall assemblies, and a metal edge connector is connected to the outside of the filler and at a position between the outer edge of the UHPC curtain wall assembly and the fair-faced concrete exterior wall.

[0009] Preferably, each of the UHPC curtain wall panels comprises a plurality of unit panels arranged in a matrix, and each of the unit panels is provided with at least one window opening.

[0010] Preferably, the adjacent window holes

[0011] An anchor is provided, and the anchor is inserted and connected to the second thermal insulation layer and the two UHPC curtain wall panels.

[0012] Preferably, the glass assembly includes an aluminum alloy window frame fixed and embedded in the window opening and a glass body fixedly connected to the aluminum alloy window frame.

[0013] Preferably, a third insulation layer is provided between the aluminum alloy window frame and the inner wall of the window opening, an embedded sheet is provided on the inner wall of the window opening, and a connecting bolt is inserted into the aluminum alloy window frame, and the insertion end of the connecting bolt passes through the third insulation layer and the embedded sheet in sequence and is inserted into the second insulation layer, thereby fixing the glass assembly to the UHPC curtain wall panel.

[0014] Preferably, the metal edge connector, the fair-faced concrete exterior wall and the UHPC curtain wall panel have the same color.

[0015] Preferably, the UHPC curtain wall panel at the top and the UHPC curtain wall panel at the bottom are both provided with connecting pieces, the first side panel of the connecting piece is fixed to the UHPC curtain wall panel, and the second side panel is fixedly connected to the fair-faced concrete exterior wall.

[0016] Preferably, the UHPC curtain wall panel at the top and the UHPC curtain wall panel at the bottom are both provided with embedded sleeves, a through hole is opened on the connecting piece at a position corresponding to the embedded sleeve, and a fixing bolt for inserting into the embedded sleeve to fix the UHPC curtain wall panel to the connecting piece is inserted in the through hole.

[0017] A construction method for a UHPC node embedded in a plain concrete exterior wall, used for constructing the UHPC node embedded in a plain concrete exterior wall, the construction method comprising the following steps:

[0018] A curtain wall opening is opened on the exposed concrete exterior wall, and a first insulation layer is provided on the side wall of the curtain wall opening;

[0019] At least one set of UHPC curtain wall components is embedded on the inner wall of the curtain wall opening, and a second insulation layer is fixed between two UHPC curtain wall panels of each set of UHPC curtain wall components, and the second insulation layer is fixedly connected to the first insulation layer;

[0020] A plurality of window openings are correspondingly opened on the second insulation layer and the two UHPC curtain wall panels, and a glass component is fixed between the two UHPC panels so that the glass component blocks the window opening;

[0021] Fillers are respectively filled in the gaps between the exposed concrete exterior wall and the UHPC curtain wall components and between adjacent UHPC curtain wall components, and metal edge connectors are provided at the position between the UHPC curtain wall components and the outer edge of the exposed concrete exterior wall to ensure the continuity of the facade.

[0022] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0023] The present invention optimizes UHPC and curtain wall structures, embeds UHPC curtain wall components in the fair-faced concrete exterior wall, and combines the two into one, thereby solving the problem that UHPC is difficult to promote in fair-faced concrete buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the embedded UHPC node in the fair-faced concrete exterior wall of the present invention.

[0026] Figure 2 yes Figure 1 Middle AA section view.

[0027] Figure 3 yes Figure 1 Middle BB cross-section.

[0028] Figure 4 yes Figure 1 Middle aa section view.

[0029] Figure 5 yes Figure 1 Middle bb section.

[0030] Figure 6 yes Figure 1 Middle dd section view.

[0031] Figure 7 yes Figure 2 Enlarged view of the node at C in the middle.

[0032] Figure 8 yes Figure 2 Enlarged view of the node at D in the middle.

[0033] Fig. 9 yes Figure 6 Enlarged view of the node at E in the middle.

[0034] Fig.10 yes Figure 6 Enlarged view of the node at F in the middle.

[0035] The corresponding relationship of the numbers in the accompanying drawings is as follows:

[0036] 1-exterior concrete wall; 2-first insulation layer; 3-UHPC curtain wall panel; 4-second insulation layer; 5-window opening; 6-glass assembly; 61-aluminum alloy window frame; 62-glass body; 63-third insulation layer; 64-embedded sheet; 65-connecting bolt; 7-filler; 8-metal edge connector; 9-unit board; 10-insulation mortar; 11-embedded sleeve; 12-fixing bolt; 13-angle code; 14-anchor. DETAILED DESCRIPTION

[0037] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] See also Figures 1 to 10As shown, an embodiment of the present invention provides a UHPC node embedded in a plain concrete exterior wall, comprising a plain concrete exterior wall 1, at least one group of UHPC curtain wall components and a filler 7, wherein a curtain wall opening is provided on the plain concrete exterior wall 1, a first thermal insulation layer 2 is provided on the side wall of the curtain wall opening, at least one group of UHPC curtain wall components is embedded in the inner wall of the curtain wall opening, each group of UHPC curtain wall components comprises two UHPC curtain wall panels 3 arranged in parallel and a second thermal insulation layer 4 fixedly connected between the two UHPC curtain wall panels 3, the second thermal insulation layer 4 is fixedly connected to the first thermal insulation layer 2, a plurality of window openings 5 ​​are correspondingly provided on the second thermal insulation layer 4 and the two UHPC curtain wall panels 3, and a glass is fixed between the two UHPC curtain wall panels 3. Component 6, and the glass component 6 blocks the window opening 5, the filler 7 is respectively filled in the gap between the fair-faced concrete exterior wall 1 and the UHPC curtain wall component and in the gap between adjacent UHPC curtain wall components, and a metal edge connector 8 is connected to the outside of the filler 7 and at a position between the outer edge of the UHPC curtain wall component and the fair-faced concrete exterior wall 1. It should be noted that, in this embodiment, the materials of the metal edge connector 8, the fair-faced concrete exterior wall 1 and the UHPC curtain wall panel 3 are consistent in color, thereby ensuring the continuity of the facade and achieving the unique artistic sense of the fair-faced concrete building. The metal edge connector 8 adopts a bent aluminum plate, and the filler 7 adopts a foam rod and a sealant to ensure the close fit of the components and prevent the occurrence of cold bridges.

[0039] As a preferred embodiment, each UHPC curtain wall panel 3 includes a plurality of unit panels 9 arranged in a matrix, and each unit panel 9 is provided with at least one window hole 5 .

[0040] As a preferred implementation, Figure 2 and Figure 6 As shown, an anchor 14 is provided between adjacent window openings, and the anchor 14 is inserted and connected to the second insulation layer 4 and the two UHPC curtain wall panels 3. By providing the anchor 14, the two UHPC curtain wall panels 3 can be fixedly connected to the second insulation layer 4, thereby improving the overall stability of the connection structure.

[0041] See also Figure 4 and Figure 5 As shown, the glass assembly 6 includes an aluminum alloy window frame 61 fixed and embedded in the window hole 5 and a glass body 62 fixedly connected to the aluminum alloy window frame 61 .

[0042] As a preferred implementation, Figure 2 and Figure 7As shown, a third insulation layer 63 is provided between the aluminum alloy window frame 61 and the inner wall of the window opening 5, an embedded sheet 64 is provided on the inner wall of the window opening 5, and a connecting bolt 65 is inserted into the aluminum alloy window frame 61. The insertion end of the connecting bolt 65 passes through the third insulation layer 63 and the embedded sheet 54 in sequence and is inserted into the second insulation layer 4, thereby fixing the glass assembly 6 to the UHPC curtain wall panel 3.

[0043] As a preferred implementation, Fig.10 As shown, a thermal insulation mortar 10 is provided between the UHPC curtain wall panel 3 at the bottom and the exposed concrete outer wall 1, and the UHPC curtain wall panel 3 and the exposed concrete outer wall 1 are connected by a connecting piece, such as Fig. 9 and Fig.10 As shown, the UHPC curtain wall panel 3 is provided with an embedded sleeve 11, and a through hole is correspondingly opened on the connecting piece. In this embodiment, the connecting piece is an angle code 13, that is, a through hole is opened on the side plate of the angle code 13, and the fixing bolt 12 is inserted into the embedded sleeve 11 through the through hole, and the other side plate of the angle code 13 is fixedly connected to the plain concrete exterior wall 1.

[0044] The embodiment of the present invention further provides a construction method for a UHPC node embedded in a plain concrete exterior wall, which is used to construct a UHPC node embedded in a plain concrete exterior wall. The construction method comprises the following steps:

[0045] A curtain wall opening is opened on the exposed concrete exterior wall, and a first insulation layer is provided on the side wall of the curtain wall opening;

[0046] At least one set of UHPC curtain wall components is embedded on the inner wall of the curtain wall opening, and a second insulation layer is fixed between two UHPC curtain wall panels of each set of UHPC curtain wall components, and the second insulation layer is fixedly connected to the first insulation layer;

[0047] A plurality of window openings are correspondingly opened on the second insulation layer and the two UHPC curtain wall panels, and a glass component is fixed between the two UHPC panels so that the glass component blocks the window opening;

[0048] Fillers are respectively filled in the gaps between the exposed concrete exterior wall and the UHPC curtain wall components and between adjacent UHPC curtain wall components, and metal edge connectors are provided at the position between the UHPC curtain wall components and the outer edge of the exposed concrete exterior wall to ensure the continuity of the facade.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A UHPC node embedded in a plain concrete exterior wall, characterized in that: include: A plain concrete exterior wall, wherein a curtain wall opening is formed on the plain concrete exterior wall, and a first thermal insulation layer is formed on the side wall of the curtain wall opening; At least one group of UHPC curtain wall components embedded in the inner wall of the curtain wall opening, each group of the UHPC curtain wall components includes two UHPC curtain wall panels arranged in parallel and a second insulation layer fixedly connected between the two UHPC curtain wall panels, the second insulation layer is fixedly connected to the first insulation layer, a plurality of window holes are correspondingly opened on the second insulation layer and the two UHPC curtain wall panels, a glass component is fixed between the two UHPC curtain wall panels, and the glass component blocks the window hole; A filler is filled in the gap between the fair-faced concrete exterior wall and the UHPC curtain wall assembly and between adjacent UHPC curtain wall assemblies, and a metal edge connector is connected to the outside of the filler and at a position between the outer edge of the UHPC curtain wall assembly and the fair-faced concrete exterior wall.

2. The UHPC node embedded in the exposed concrete exterior wall according to claim 1, characterized in that: Each of the UHPC curtain wall panels includes a plurality of unit panels arranged in a matrix, and each of the unit panels is provided with at least one window opening.

3. The UHPC node embedded in the exposed concrete exterior wall according to claim 1, characterized in that: Anchors are provided between adjacent window openings, and the anchors are inserted and connected to the second thermal insulation layer and the two UHPC curtain wall panels.

4. The UHPC node embedded in the exposed concrete exterior wall according to claim 1, characterized in that: The glass assembly comprises an aluminum alloy window frame fixed and embedded in the window hole and a glass body fixedly connected to the aluminum alloy window frame.

5. The UHPC node embedded in the exposed concrete exterior wall according to claim 4, characterized in that: A third thermal insulation layer is provided between the aluminum alloy window frame and the inner wall of the window opening, an embedded sheet is provided on the inner wall of the window opening, and a connecting bolt is inserted into the aluminum alloy window frame. The insertion end of the connecting bolt passes through the third thermal insulation layer and the embedded sheet in sequence and is inserted into the second thermal insulation layer, thereby fixing the glass assembly to the UHPC curtain wall panel.

6. The UHPC node embedded in the exposed concrete exterior wall according to claim 1, characterized in that: The materials of the metal edge connector, the fair-faced concrete exterior wall and the UHPC curtain wall panel are consistent in color.

7. The UHPC node embedded in the exposed concrete exterior wall according to claim 1, characterized in that: The UHPC curtain wall panel located at the top and the UHPC curtain wall panel located at the bottom are both provided with connecting pieces, the first side panel of the connecting piece is fixed to the UHPC curtain wall panel, and the second side panel is fixedly connected to the fair-faced concrete exterior wall.

8. The UHPC node embedded in the exposed concrete exterior wall according to claim 1, characterized in that: The UHPC curtain wall panel at the top and the UHPC curtain wall panel at the bottom are both provided with embedded sleeves, and a through hole is opened on the connecting piece at a position corresponding to the embedded sleeve, and a fixing bolt for inserting into the embedded sleeve is inserted in the through hole to fix the UHPC curtain wall panel to the connecting piece.

9. A construction method for an embedded UHPC node in a plain concrete exterior wall, characterized in that: For constructing the UHPC node embedded in the exposed concrete exterior wall as claimed in claim 1, the construction method comprises the following steps: A curtain wall opening is opened on the exposed concrete exterior wall, and a first insulation layer is provided on the side wall of the curtain wall opening; At least one set of UHPC curtain wall components is embedded on the inner wall of the curtain wall opening, and a second insulation layer is fixed between two UHPC curtain wall panels of each set of UHPC curtain wall components, and the second insulation layer is fixedly connected to the first insulation layer; A plurality of window openings are correspondingly opened on the second insulation layer and the two UHPC curtain wall panels, and a glass component is fixed between the two UHPC panels so that the glass component blocks the window opening; Fillers are respectively filled in the gaps between the exposed concrete exterior wall and the UHPC curtain wall components and between adjacent UHPC curtain wall components, and metal edge connectors are provided at the position between the UHPC curtain wall components and the outer edge of the exposed concrete exterior wall to ensure the continuity of the facade.

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