UHPC assembled composite outer wall

Abstract

The UHPC assembled composite outer wall provided by the application can significantly reduce the self weight of the composite wallboard while meeting the strength and deformation requirements under the condition of large layer height, and can further improve the thermal performance of the composite wallboard and the waterproof performance of the composite wallboard system.

Description

Technical Field

[0001] The present invention relates to the field of building technology, and in particular to a UHPC assembled composite exterior wall. Background Art

[0002] Ultra-high-performance concrete (UHPC) is a new cement-based material with high strength, high toughness, and excellent durability. The impermeability, carbonation resistance, and flexural strength of UHPC components are an order of magnitude higher than those of ordinary concrete. While UHPC is more expensive than ordinary precast concrete, the amount of material used to manufacture panels with the same functionality is significantly reduced. Therefore, considering the overall cost, UHPC has promising application prospects.

[0003] UHPC is particularly suitable for producing thin-walled prefabricated components such as panels with large width-to-thickness ratios. Existing prefabricated exterior walls often struggle to meet the strength and deformation requirements of high-rise buildings, have long construction cycles, are prone to leakage, and require on-site cutting of the baseboard for mechanical and electrical pipelines.

[0004] The exterior walls in typhoon-affected areas need to withstand greater wind pressure, and at the same time, there are high requirements for anti-seepage performance, especially the anti-seepage performance of the joints. The existing prefabricated exterior walls are not very effective in typhoon-affected areas, and are prone to overall failure under extreme weather conditions. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a UHPC assembled composite exterior wall that effectively meets the strength and deformation requirements under large floor height conditions and improves thermal insulation and waterproof performance.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A UHPC assembled composite exterior wall, comprising a UHPC bearing plate, an insulation plate, electromechanical pipelines, and a decorative plate that are sequentially laminated from the outside to the inside;

[0008] The inner side of the UHPC bearing plate is vertically arranged with side vertical ribs located on the left and right sides and multiple evenly spaced middle vertical ribs between the side vertical ribs;

[0009] The cross section of the side vertical rib in the horizontal direction is in the shape of an "X" and the "X" is a decompression depression concave toward the middle vertical rib, and the middle vertical rib is in the shape of a "T" with the head of the "T" facing the inner side of the UHPC bearing plate;

[0010] A plurality of the UHPC bearing plates can be sealed and spliced ​​left and right through the side vertical ribs.

[0011] The beneficial effects of the present invention are: providing a UHPC prefabricated composite exterior wall, by arranging an "X"-shaped side vertical rib and a T-shaped middle vertical rib with a reinforcement structure on the inner side of the UHPC bearing plate as a bearing structure, which can significantly reduce the deadweight of the composite wall panel while meeting the strength and deformation requirements under large floor height conditions; at the same time, the insulation board, electromechanical pipelines and decorative panels are sequentially attached to the inner side of the UHPC bearing plate with the side vertical ribs and the middle vertical ribs to form a final single composite exterior wall, and the multiple composite exterior walls are sealed and spliced ​​on the left and right by the side vertical ribs, thereby significantly improving the thermal performance of the composite wall panel and at the same time improving the waterproof performance of the composite wall panel system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 An exploded view of a UHPC assembled composite exterior wall according to an embodiment of the present invention;

[0013] Figure 2 This is a schematic structural diagram of a UHPC bearing plate in a UHPC assembled composite exterior wall according to an embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of a horizontal cross-section of a UHPC bearing plate in a UHPC assembled composite exterior wall according to an embodiment of the present invention;

[0015] Figure 4 Schematic diagram of the bonding between the insulation board and the inner side of the UHPC bearing board in a UHPC assembled composite exterior wall according to an embodiment of the present invention;

[0016] Figure 5 A horizontal cross-sectional diagram of a UHPC assembled composite exterior wall after the insulation board and the inner side of the UHPC bearing board are bonded together according to an embodiment of the present invention.

[0017] Figure 6 This is a partially enlarged schematic diagram of the vertical ribs after the insulation board and the inner side of the UHPC bearing board are bonded together in a UHPC assembled composite exterior wall according to an embodiment of the present invention;

[0018] Figure 7 This is a partial enlarged schematic diagram of the side vertical ribs of two composite wall panels spliced ​​together in a UHPC prefabricated composite exterior wall according to an embodiment of the present invention;

[0019] Figure 8 This is a schematic diagram of the wiring of electromechanical pipelines in a UHPC assembled composite exterior wall according to an embodiment of the present invention;

[0020] Figure 9 This is a schematic diagram of the coverage of a UHPC assembled composite exterior wall decorative panel according to an embodiment of the present invention;

[0021] Figure 10This is a schematic diagram of two composite wall panels in a UHPC assembled composite exterior wall before being spliced ​​together according to an embodiment of the present invention;

[0022] Figure 11 This is a schematic diagram of the splicing of two composite wall panels in a UHPC assembled composite exterior wall according to an embodiment of the present invention;

[0023] Figure 12 This is a schematic diagram of two composite wall panels after splicing in a UHPC prefabricated composite exterior wall according to an embodiment of the present invention.

[0024] Description of labels:

[0025] 1. UHPC bearing plate; 11. Side vertical ribs; 111. Decompression depression; 112. Decompression space; 12. Center vertical ribs; 2. Insulation board; 3. Mechanical and electrical pipelines; 4. Decorative panel; 5. Sealing strip; 6. Guide plate; 71. Bolts; 72. Screw holes. DETAILED DESCRIPTION

[0026] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0027] Please refer to Figures 1 to 12 , a UHPC assembled composite exterior wall, including UHPC bearing panels, insulation panels, electromechanical pipelines and decorative panels that are sequentially laminated from the outside to the inside;

[0028] The inner side of the UHPC bearing plate is vertically arranged with side vertical ribs located on the left and right sides and multiple evenly spaced middle vertical ribs between the side vertical ribs;

[0029] The cross section of the side vertical rib in the horizontal direction is in the shape of an "X" and the "X" is a decompression depression concave toward the middle vertical rib, and the middle vertical rib is in the shape of a "T" with the head of the "T" facing the inner side of the UHPC bearing plate;

[0030] A plurality of the UHPC bearing plates can be sealed and spliced ​​left and right through the side vertical ribs.

[0031] As can be seen from the above description, the beneficial effects of the present invention are: providing a UHPC prefabricated composite exterior wall, by arranging an I-shaped side vertical rib and a T-shaped middle vertical rib with a reinforcing structure on the inner side of the UHPC bearing plate as a bearing structure, it can significantly reduce the dead weight of the composite wall panel while meeting the strength and deformation requirements under large floor height conditions, and at the same time, the insulation board, electromechanical pipelines and decorative panels are sequentially bonded to the inner side of the UHPC bearing plate with the side vertical ribs and the middle vertical ribs to form the final single composite exterior wall, and the multiple composite exterior walls are then sealed and spliced ​​on the left and right by the side vertical ribs, thereby significantly improving the thermal performance of the composite wall panel and at the same time improving the waterproof performance of the composite wall panel system.

[0032] Furthermore, the insulation board is embedded in the side vertical rib and the adjacent middle vertical rib and between two adjacent middle vertical ribs;

[0033] The electromechanical pipelines are arranged on a side of the insulation board away from the UHPC bearing board, and the decorative panel shields the electromechanical pipelines and then covers the side of the insulation board away from the UHPC bearing board.

[0034] From the above description, it can be seen that the insulation board, mechanical and electrical pipelines and decorative panels are sequentially bonded, laid and covered on the inner side of the UHPC bearing plate with side vertical ribs and middle vertical ribs to form the final single composite exterior wall, ensuring the tightness and firmness of the overall composite exterior wall panel.

[0035] Furthermore, it also includes a sealing strip;

[0036] The sealing strips along the vertical direction of the side vertical ribs are attached to both sides of the bottom of the side vertical ribs;

[0037] The length of the sealing strip close to the inner side of the UHPC bearing plate is the same as the vertical length of the side vertical rib;

[0038] The length of the sealing strip close to the outer side of the UHPC bearing plate is shorter than the length of the sealing strip close to the inner side of the UHPC bearing plate, and the top is flush with the top of the side vertical rib and the bottom is higher than the bottom of the side vertical rib.

[0039] From the above description, it can be seen that the sealing strip can further improve the sealing of the spliced ​​composite wall panels, further improve the thermal insulation and waterproof effects, and at the same time, the length of the sealing strip at the side vertical rib close to the inner side of the wall is consistent with the length of the side vertical rib, that is, the sealing after splicing is effectively guaranteed in the vertical direction, and the bottom of the sealing strip at the side vertical rib close to the outer side of the wall is higher than the bottom of the sealing strip close to the inner side of the wall, which can make the rainwater entering the decompression space formed by the decompression depression of the spliced ​​side vertical ribs seep out of the wall, that is, ensure that the rainwater entering the joint is discharged in time.

[0040] Furthermore, it also includes a deflector;

[0041] The guide plate is L-shaped and is arranged with the bottom of the L-shape facing the outside of the UHPC bearing plate in the decompression space formed by the decompression recess of the side vertical ribs in the two UHPC bearing plates spliced ​​on the left and right;

[0042] The bottom of the guide plate is flush with the bottom of the side vertical rib, and the length of the L-shaped bottom of the guide plate along the length direction of the UHPC bearing plate is greater than one times the depth of the decompression depression and less than or equal to two times the depth of the decompression depression.

[0043] From the above description, it can be seen that the L-shaped guide plate can further improve the efficiency of rainwater discharge. At the same time, the existence of the decompression space can significantly improve the anti-seepage ability of the joints. Under the action of extremely high wind pressure, when the outer joint strips fail, the existence of the decompression cavity can prevent rainwater from seeping into the indoor side.

[0044] Furthermore, the L-shaped back of the guide plate is fixed in the decompression space by means of foam glue.

[0045] As can be seen from the above description, the foam glue has excellent waterproof performance, which can effectively fix the guide plate and prevent it from falling off.

[0046] Furthermore, the length of the ends of the side vertical ribs and the middle vertical ribs near the top and the bottom extending toward the inner side of the UHPC bearing plate is equal to the thickness of the insulation board;

[0047] The length of the middle portion of the side vertical ribs and the middle vertical ribs extending toward the inner side of the UHPC bearing plate is equal to the thickness of the insulation board, the electromechanical pipelines and the decorative panel after being attached in sequence;

[0048] The top and bottom ends of the side vertical ribs and the middle vertical ribs are flush with the top and bottom of the UHPC bearing plate and the insulation plate.

[0049] As can be seen from the above description, the side vertical ribs and the middle vertical ribs extend out of the insulation board in the middle, which can effectively fix the insulation board and prevent it from falling off; and the top and bottom ends of the side vertical ribs and the middle vertical ribs are flush with the top and bottom of the UHPC bearing plate and the insulation board, ensuring that the structure of the overall composite wall meets the requirements.

[0050] Furthermore, a plurality of screw holes are provided in the middle portion of the side vertical rib extending out of the thickness of the insulation board, and the side vertical ribs between the plurality of UHPC bearing plates are spliced ​​left and right by bolts through the screw holes.

[0051] As can be seen from the above description, the part of the side vertical rib extending out of the insulation board can be used to achieve the splicing between multiple UHPC bearing plates through bolts, thereby realizing the splicing of composite wall panels, ensuring the firmness and reliability of the splicing.

[0052] Furthermore, the electromechanical pipelines are laid in the horizontal direction on the insulation board at the top and bottom of the side vertical ribs and the middle vertical ribs, where the horizontal space does not extend out of the insulation board.

[0053] The electromechanical pipelines are laid along the vertical direction in the vertical space between the side vertical ribs and the adjacent middle vertical ribs and between the adjacent middle vertical ribs on the insulation board.

[0054] From the above description, it can be seen that the parts of the side vertical ribs and the middle vertical ribs that do not extend out of the insulation board at both ends can be used as the laying area of ​​the horizontal pipelines of the electromechanical pipelines, and the space between the side vertical ribs and the adjacent middle vertical ribs and between the adjacent middle vertical ribs can be used as the laying area of ​​the vertical relationship of the electromechanical pipelines, making the wiring of the electromechanical pipelines convenient, fast and neat.

[0055] Furthermore, the insulation board is a rigid foamed polyurethane board, and the insulation board located between the side vertical rib and the adjacent middle vertical rib has an I-shaped depression on the side close to the side vertical rib toward the adjacent middle vertical rib, which has the same shape as the horizontal cross-section of the side vertical rib.

[0056] As can be seen from the above description, the insulation board is made of rigid foamed polyurethane board, which has excellent thermal insulation and waterproof properties, and is embedded in the side vertical ribs and adjacent middle vertical ribs on the inner side of the UHPC bearing plate, as well as between adjacent middle vertical ribs, to further improve the thermal insulation and waterproof properties of the final negative composite wall.

[0057] Furthermore, the UHPC bearing plate, the side vertical ribs and the middle vertical ribs are integrally formed by extrusion molding of UHPC material.

[0058] From the above description, it can be seen that the UHPC bearing plate, side vertical ribs and middle vertical ribs are formed by integral extrusion molding of UHPC material. The integrated design further improves the bearing capacity of the UHPC bearing plate.

[0059] The present invention provides a UHPC assembled composite exterior wall, which is mainly used in typhoon-affected areas and is described in detail below with reference to specific embodiments:

[0060] Please refer to Figures 1 to 5 、 Figure 8 and Figure 9 , embodiment 1 of the present invention is:

[0061] A UHPC assembled composite exterior wall, such as Figure 1 As shown, it includes a UHPC bearing plate 1, an insulation plate 2, an electromechanical pipeline 3 and a decorative panel 4 which are sequentially bonded from the outside to the inside.

[0062] like Figure 2 As shown, the inner side of the UHPC bearing plate 1 is vertically arranged with side vertical ribs 11 located on the left and right sides and multiple evenly spaced middle vertical ribs 12 between the side vertical ribs 11; Figure 3 As shown, the cross section of the side vertical rib 11 in the horizontal direction is in the shape of a letter "J" and the letter "J" is a decompression recess 111 that is concave toward the middle vertical rib 12. The middle vertical rib 12 is in the shape of a letter "T" and the head of the letter "T" is facing the inner side of the UHPC bearing plate 1. Figure 4 and Figure 5 As shown, the insulation board 2 is embedded in the side vertical rib 11 and the adjacent middle vertical rib 12 and between two adjacent middle vertical ribs 12; Figure 8 As shown, the electromechanical pipelines 3 are arranged on the side of the insulation board 2 away from the UHPC bearing board 1; Figure 9 As shown, the decorative panel 4 shields the electromechanical pipelines 3 and then covers the side of the insulation board 2 away from the UHPC bearing board 1.

[0063] At the same time, in this embodiment, multiple UHPC bearing plates 1 can be sealed and spliced ​​left and right through the side vertical ribs 11.

[0064] That is, in this embodiment, by arranging the I-shaped side vertical ribs 11 and T-shaped middle vertical ribs 12 with a reinforced structure on the inner side of the UHPC bearing plate 1 as a bearing structure, the self-weight of the composite wall panel can be significantly reduced while meeting the strength and deformation requirements under the condition of large floor height. At the same time, the insulation board 2, electromechanical pipelines 3 and decorative panels 4 are successively bonded, laid and covered on the inner side of the UHPC bearing plate 1 with the side vertical ribs 11 and the middle vertical ribs 12 to form the final single composite exterior wall, and the multiple composite exterior walls are sealed and spliced ​​on the left and right by the side vertical ribs 11, which significantly improves the thermal performance of the composite wall panel and can also improve the waterproof performance of the composite wall panel system.

[0065] In this embodiment, the insulation board 2 adopts a rigid foamed polyurethane board with excellent thermal insulation and waterproof properties; and the insulation board 2 located between the side vertical rib 11 and the adjacent middle vertical rib 12 has a side close to the side vertical rib 11 toward the adjacent middle vertical rib 12 and has an I-shaped depression with the same horizontal cross-sectional shape as the side vertical rib 11, that is, the insulation board 2 is arranged in an embedded manner between the side vertical rib 11 and the adjacent middle vertical rib 12 and the adjacent middle vertical rib 12 on the inner side of the UHPC bearing plate 1, thereby further improving the thermal insulation and waterproof properties of the final negative composite wall.

[0066] In this embodiment, the top and bottom ends of the side vertical ribs 11 and center vertical ribs 12 are flush with the top and bottom of the UHPC bearing plate 1 and insulation plate 2, ensuring that the overall composite wall structure meets requirements. Furthermore, the UHPC bearing plate 1, side vertical ribs 11, and center vertical ribs 12 are integrally extruded from UHPC material. This integrated design further enhances the load-bearing capacity of the UHPC bearing plate 1.

[0067] Please refer to Figure 1 、 Figure 6 、 Figures 10 to 12 , the second embodiment of the present invention is:

[0068] A UHPC assembled composite exterior wall, based on the above embodiment 1, in this embodiment, as Figure 1 As shown, a sealing strip 5 is also included.

[0069] like Figure 6As shown, sealing strips 5 are attached to both sides of the bottom of the side vertical rib 11 in the vertical direction of the side vertical rib 11, wherein the length of the sealing strip 5 close to the inner side of the UHPC bearing plate 1 is the same as the vertical length of the side vertical rib 11, the length of the sealing strip 5 close to the outer side of the UHPC bearing plate 1 is less than the length of the sealing strip 5 close to the inner side of the UHPC bearing plate 1, and the top is level with the top of the side vertical rib 11, and the bottom is higher than the bottom of the side vertical rib 11.

[0070] That is, in this embodiment, the sealing strip 5 can further improve the sealing of the composite wall panel after splicing, further improve the thermal insulation and waterproof effects, and at the same time, the length of the sealing strip 5 at the side vertical rib 11 close to the inner side of the wall is consistent with the length of the side vertical rib 11, that is, the sealing after splicing is effectively guaranteed in the vertical direction, and the bottom of the sealing strip 5 at the side vertical part close to the outer side of the wall is higher than the bottom of the sealing strip 5 close to the inner side of the wall, which can make the rainwater entering the decompression space 112 formed by the decompression recess 111 of the spliced ​​side vertical ribs 11 seep out of the wall, that is, ensure that the rainwater entering the joint is discharged in time.

[0071] At the same time, Figure 1 As shown, in this embodiment, a guide plate 6 is also included. Figure 6 As shown, the guide plate 6 is L-shaped and is arranged in the direction of the L-shaped bottom facing the outside of the UHPC bearing plate 1 in the decompression space 112 formed by the decompression recess 111 of the side vertical rib 11 in the two UHPC bearing plates 1 spliced ​​on the left and right. Figures 10 to 12 In this embodiment, the bottom of the guide plate 6 is flush with the bottom of the side vertical rib 11. The length of the L-shaped bottom of the guide plate 6 along the length direction of the UHPC bearing plate 1 is greater than twice the depth of the decompression recess 111 and less than or equal to twice the depth of the decompression recess 111, so that it can be positioned within the decompression space 112.

[0072] That is, adding the L-shaped guide plate 6 can further improve the efficiency of rainwater discharge. At the same time, the existence of the decompression space 112 can significantly improve the anti-seepage ability of the joint. Under the action of extremely large wind pressure, when the outer joint strip fails, the existence of the decompression chamber can prevent rainwater from seeping into the indoor side.

[0073] In addition, in this embodiment, the L-shaped back of the guide plate 6 is fixed in the decompression space 112 by foam glue. That is, the foam glue has good waterproof performance, which effectively fixes the guide plate 6 and prevents the guide plate 6 from falling off.

[0074] It is worth noting that, in this embodiment, the length and depth of the pressure relief recess 111 can be set to 20 mm and 10 mm, respectively, which can be specifically set according to the provisions of the 16G333 "Precast Concrete Exterior Wall Panel" standard. At the same time, the T-shaped structure of the middle vertical rib 12 has the effect of increasing the bending stiffness of the UHPC bearing plate 1. The size of its T-shaped head can be determined by calculating the necking effect in actual application, and is not limited here.

[0075] Please refer to Figure 4 , the third embodiment of the present invention is:

[0076] A UHPC assembled composite exterior wall, based on the above embodiment 1 or embodiment 2, in this embodiment, as Figure 4 、 Figure 5 、 Figure 7 and Figure 9 As shown, the length of the ends of the side vertical ribs 11 and the middle vertical ribs 12 near the top and the bottom extending toward the inner side of the UHPC bearing plate 1 is equal to the thickness of the insulation board 2, and the length of the middle parts of the side vertical ribs 11 and the middle vertical ribs 12 extending toward the inner side of the UHPC bearing plate 1 is equal to the thickness of the insulation board 2, the electromechanical pipelines 3 and the decorative panel 4 after being attached in sequence.

[0077] That is, in this embodiment, the side vertical ribs 11 and the middle vertical ribs 12 extend out of the insulation board 2 at the middle position, which can effectively fix the insulation board 2 and prevent the insulation board 2 from falling off.

[0078] At the same time, Figure 4 As shown, the middle part of the side vertical rib 11 extending out of the thickness of the insulation board 2 is provided with multiple screw holes 72, and the side vertical ribs 11 between the multiple UHPC bearing plates 1 are spliced ​​left and right by means of bolts 71 through the screw holes 72, that is, Figure 7 set Figures 10 to 12 shown.

[0079] That is, the portion of the side vertical ribs 11 extending out of the insulation board 2 can be used to achieve the splicing of multiple UHPC bearing plates 1 through bolts 71, thereby achieving the splicing of composite wall panels, ensuring firmness and reliability of the splicing.

[0080] In addition, in this embodiment, Figure 8 As shown, the electromechanical pipelines 3 along the horizontal direction are laid on the insulation board 2 at the top and bottom of the side vertical ribs 11 and the middle vertical ribs 12 in the horizontal space that does not extend out of the insulation board 2; and the electromechanical pipelines 3 along the vertical direction are laid on the insulation board 2 in the vertical space between the side vertical ribs 11 and the adjacent middle vertical ribs 12 and between the adjacent middle vertical ribs 12.

[0081] That is, the parts of the side vertical ribs 11 and the middle vertical ribs 12 that do not extend out of the insulation board 2 at both ends can be used as the laying area of ​​the horizontal pipelines of the electromechanical pipelines 3, and the space between the side vertical ribs 11 and the adjacent middle vertical ribs 12 and between the adjacent middle vertical ribs 12 can be used as the laying area of ​​the vertical relationship of the electromechanical pipelines 3, so that the wiring of the electromechanical pipelines 3 is convenient, fast and neat; it is worth noting that the top and bottom of the side vertical ribs 11 and the middle vertical ribs 12 used for laying the horizontal electromechanical pipelines 3 do not extend out of the position of the insulation bag, and their vertical length can be determined according to the size of the space reserved for the horizontal piping of the electromechanical pipelines 3 in actual use, and is not limited here.

[0082] The specific assembly process of the entire UHPC prefabricated composite exterior wall is as follows:

[0083] 1. Extruding the UHPC bearing plate 1 to form side vertical ribs 11 and middle vertical ribs 12;

[0084] 2. At the factory, lay the UHPC bearing plate 1 flat on the ground with the side vertical ribs 11 and the middle vertical ribs 12 facing upward. Cure the insulation board 2 on the inner side of the UHPC bearing plate 1. Simultaneously, form screw holes 72 on the side vertical ribs 11 and secure the sealing strips 5 to the side vertical ribs 11 to form the wall panel assembly.

[0085] 3. Transport the wall panel assembly to the construction site, place the guide plate 6 in the decompression recess 111 between adjacent wall panel assemblies, use the bolt 71 to pass through the screw hole 72, and press the adjacent wall panel assemblies tightly, that is, Figure 7 and Figure 12 As shown;

[0086] 4. Lay the electromechanical pipelines 3 on the indoor side of the wall panel assembly, wherein the horizontal pipelines are laid in the space between the side vertical ribs 11 and the middle vertical ribs 12 where the insulation bag is not extended, and the vertical pipelines are laid in the space formed by the side vertical ribs 11 and the middle vertical ribs 12, that is, Figure 8 As shown;

[0087] 5. Fix the decorative panel 4 to the end plate of the side vertical rib 11 and the middle vertical rib 12 to cover the insulation board 2 with the electromechanical pipeline 3, that is, Figure 9 shown.

[0088] In summary, the UHPC assembled composite exterior wall provided by the present invention has the following beneficial effects:

[0089] 1. Using unreinforced UHPC bearing slabs with T-shaped central vertical ribs and I-shaped side vertical ribs as the supporting structure can significantly reduce the weight of the composite wall panels while meeting the strength and deformation requirements under high-rise conditions;

[0090] 2. Embedding rigid foamed polyurethane panels as thermal insulation and waterproof filling materials inside the interior of the UHPC bearing panels significantly improves the thermal performance of the composite wall panels and also enhances the waterproof performance of the composite wall panel system.

[0091] 3. Setting up a decompression space between UHPC bearing plates can significantly improve the anti-seepage ability of the joints. When the outer joint strips fail under the action of extremely high wind pressure, the presence of the decompression space can prevent rainwater from seeping into the interior. At the same time, the bottom guide plate can ensure that rainwater entering the joints is discharged in time.

[0092] 4. The UHPC bearing panels are waterproofed by combining material and structural means. The meshing and pressing principle is used on the indoor side to prevent leakage at the joints of the wall panels.

[0093] 5. The T-shaped vertical rib reinforcement structure of the UHPC bearing plate is only located in the middle. While effectively reducing the out-of-plane deformation of the wall panel, it can also make the upper and lower sides of the wall panel barrier-free for the installation of equipment and pipelines;

[0094] 6. The reinforced structure of the vertical ribs in the T-shape can be used as the installation frame of the decorative panel. A cavity is set between the composite grooved board and the decorative panel to facilitate the installation of mechanical and electrical pipelines and avoid grooving the wall panel.

[0095] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A UHPC assembled composite exterior wall, characterized in that: It includes UHPC bearing panels, insulation panels, electromechanical pipelines and decorative panels that are laminated from the outside to the inside; The inner side of the UHPC bearing plate is vertically arranged with side vertical ribs located on the left and right sides and multiple evenly spaced middle vertical ribs between the side vertical ribs; The cross section of the side vertical rib in the horizontal direction is in the shape of an "X" and the "X" is a decompression depression concave toward the middle vertical rib, and the middle vertical rib is in the shape of a "T" with the head of the "T" facing the inner side of the UHPC bearing plate; The plurality of UHPC bearing plates are sealed and spliced ​​left and right through the side vertical ribs; Also includes sealing strips; The sealing strips along the vertical direction of the side vertical ribs are attached to both sides of the bottom of the side vertical ribs; The length of the sealing strip close to the inner side of the UHPC bearing plate is the same as the vertical length of the side vertical rib; The length of the sealing strip close to the outer side of the UHPC bearing plate is shorter than the length of the sealing strip close to the inner side of the UHPC bearing plate, and the top is flush with the top of the side vertical rib and the bottom is higher than the bottom of the side vertical rib; Also includes deflectors; The guide plate is L-shaped and is arranged with the bottom of the L-shape facing the outside of the UHPC bearing plate in the decompression space formed by the decompression recess of the side vertical ribs in the two UHPC bearing plates spliced ​​on the left and right; The bottom of the guide plate is flush with the bottom of the side vertical rib, and the length of the L-shaped bottom of the guide plate along the length direction of the UHPC bearing plate is greater than one times the depth of the decompression depression and less than or equal to two times the depth of the decompression depression; The L-shaped back of the guide plate is fixed in the decompression space by means of foam glue.

2. The UHPC assembled composite exterior wall according to claim 1, characterized in that: The insulation board is embedded in the side vertical rib and the adjacent middle vertical rib and between two adjacent middle vertical ribs; The electromechanical pipelines are arranged on a side of the insulation board away from the UHPC bearing board, and the decorative panel shields the electromechanical pipelines and then covers the side of the insulation board away from the UHPC bearing board.

3. The UHPC assembled composite exterior wall according to claim 2, characterized in that: The length of the ends of the side vertical ribs and the middle vertical ribs near the top and the bottom extending toward the inner side of the UHPC bearing plate is equal to the thickness of the insulation board; The length of the middle portion of the side vertical ribs and the middle vertical ribs extending toward the inner side of the UHPC bearing plate is equal to the thickness of the insulation board, the electromechanical pipelines and the decorative panel after being attached in sequence; The top and bottom ends of the side vertical ribs and the middle vertical ribs are flush with the top and bottom of the UHPC bearing plate and the insulation plate.

4. The UHPC assembled composite exterior wall according to claim 3, characterized in that: A plurality of screw holes are provided in the middle portion of the side vertical rib extending out of the thickness of the insulation board, and the side vertical ribs between the plurality of UHPC bearing plates are spliced ​​left and right by bolts through the screw holes.

5. The UHPC assembled composite exterior wall according to claim 3, characterized in that: The electromechanical pipelines are laid horizontally on the insulation board at the top and bottom of the side vertical ribs and the middle vertical ribs, where the horizontal space does not extend out of the insulation board; The electromechanical pipelines are laid along the vertical direction in the vertical space between the side vertical ribs and the adjacent middle vertical ribs and between the adjacent middle vertical ribs on the insulation board.

6. The UHPC assembled composite exterior wall according to claim 2, characterized in that: The insulation board is a rigid foamed polyurethane board, and the insulation board located between the side vertical rib and the adjacent middle vertical rib has an I-shaped depression on the side close to the side vertical rib toward the adjacent middle vertical rib, which has the same horizontal cross-sectional shape as the side vertical rib.

7. The UHPC assembled composite exterior wall according to claim 1, characterized in that: The UHPC bearing plate, the side vertical ribs and the middle vertical ribs are integrally formed by extrusion molding of UHPC material.

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