Composite wall body of mid-position heat preservation and fair-faced concrete and construction method thereof

Abstract

The application discloses a kind of middle-set heat preservation's fair-faced brick and fair-faced concrete composite wall and construction method, composite wall includes outside fair-faced brick wall, inside fair-faced concrete wall, heat preservation layer being full-paved between the two and the anchor connection component being embedded in wall body and being composed of longitudinal perforated bar, transverse tie bar, anchor sleeve bar member and bent hook embedded bar, anchor sleeve bar member is tee structure, upper and lower pipe orifice are sleeved into longitudinal perforated bar and are embedded in the reserved hole of fair-faced brick, inside screw pipe orifice is connected with tie bolt;Bent hook embedded bar one end hooks longitudinal perforated bar, the other end anchors into inside concrete wall.When construction, fair-faced brick wall is used as outside formwork, only inside formwork is set, and tie bolt can be recycled after construction.The composite wall structure of the application realizes the integration of inside and outside fair-faced finish and heat preservation waterproof, forms high-quality indoor and outdoor space quality, greatly improves the overall stability of wall body by integrated anchor connection component, and is convenient for construction, saves formwork, reduces construction cost.

Description

Technical Field

[0001] This invention belongs to the field of building wall technology, and more specifically, relates to a composite wall of exposed brick and exposed concrete with central insulation and its construction method. Background Technology

[0002] In contemporary architectural design, cultural venues, high-end office spaces, boutique commercial facilities, and high-quality residential buildings place more stringent demands on the aesthetic expression and functional performance of interior and exterior spaces. Architects often pursue a spatial experience that is both aesthetically pleasing and functionally harmonious: the building facade needs to present a simple, solid, and historically significant exposed brickwork effect to convey a warm and natural cultural image; while the interior space tends to showcase a pure and modern exposed concrete texture to create a tranquil and functional atmosphere. Therefore, it is necessary to consider the concealed installation of equipment pipelines, and at the same time, to meet the requirements of green energy conservation and waterproofing under specific climatic conditions, the walls need to be equipped with thermal insulation and waterproofing layers, forming an overall maintenance structure that takes into account the construction logic, functional needs, and interior and exterior effects.

[0003] To address the aforementioned issues, composite wall solutions have emerged in the prior art, such as patent document CN115749050A. This invention discloses a construction method for a fair-faced brick composite wall, in which an embedded wall is built between structural columns, and a thermal insulation and waterproof layer is installed on the outside of the embedded wall. The outer fair-faced brick wall is connected to the inner embedded wall through connecting mechanisms such as steel pipes, mechanical anchors, supporting angle steel, and steel angle brackets. However, in this invention, both the inner and outer sides are masonry walls. On the one hand, the masonry blocks themselves have low impermeability, and the block wall is prone to moisture damage after long-term use. On the other hand, the inner fair-faced brick wall cannot be used to integrate pipelines; water and electricity pipelines need to be grooved in the block wall or covered with an additional decorative layer, resulting in poor finishing effects, and the connectors cannot be reused. Summary of the Invention

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a composite wall of exposed brick and exposed concrete with central insulation and a construction method. The composite wall uses an outer exposed brick wall and an inner cast-in-place exposed concrete wall as its two surfaces. A functional protective layer combining insulation and waterproofing is fully laid between the two wall layers. During construction, water and electricity pipelines are concealed within the wall, creating a high-quality indoor and outdoor space. Furthermore, the exposed brick wall serves as the outer formwork, requiring only the inner formwork, making construction convenient and reducing costs.

[0005] To achieve the above objectives, according to one aspect of the present invention, the present invention provides a composite wall of exposed brick and exposed concrete with central insulation, comprising: The structure includes an outer exposed brick wall, an inner exposed concrete wall, an insulation layer fully covering the space between the exposed brick wall and the exposed concrete wall, and an anchoring connection assembly. The anchoring connection assembly includes longitudinal perforated bars, transverse tie bars, anchoring sleeves, bent-hook embedded bars, protective sleeves, and tie bolts. The exposed brick wall is constructed by staggered joints of multiple exposed bricks with pre-drilled holes, and the exposed brick wall contains: Several vertically spaced longitudinal perforated ribs are inserted into the reserved holes of the fair-faced brick; Several horizontally spaced transverse tie bars are fixedly connected to the longitudinal perforated bars; Multiple anchoring sleeves are spaced apart longitudinally and transversely. Each anchoring sleeve has a tee structure, including an upper pipe opening, a lower pipe opening, and a threaded pipe opening extending towards the inner side of the composite wall. The upper and lower pipe openings are fitted into the reserved holes of adjacent fair-faced bricks, and the longitudinal perforated bars pass through the upper and lower pipe openings. The threaded pipe openings face the inner side of the wall, the inner wall is connected to the tie bolts, and the outer wall is fitted with a protective sleeve for protecting the tie bolts during construction. Multiple longitudinally and transversely spaced pre-embedded reinforcing bars with hooks are provided. One end of each pre-embedded reinforcing bar is bent into a hook shape and hooks the longitudinal perforated reinforcing bar, while the other end extends into the fair-faced concrete wall.

[0006] Furthermore, the tie bolt is a long threaded rod with threads at both ends. One end passes through the protective sleeve and is screwed into the threaded tube of the anchoring sleeve. The other end is fastened to the inner support template of the fair-faced concrete wall by a washer and a nut. The tie bolt is detachable and recyclable.

[0007] Furthermore, the threaded end of the anchor sleeve is provided with an internal thread that matches the thread of the tie bolt.

[0008] Furthermore, the inner diameters of the upper and lower openings of the anchoring sleeve are matched with the diameter of the longitudinal perforated bar and the inner diameter of the reserved hole in the clear water brick.

[0009] Furthermore, waterproof mortar is provided between the inner surface of the exposed brick wall and the insulation layer, and the insulation layer is a water-repellent insulation layer.

[0010] Furthermore, the inner diameter of the protective sleeve needs to be slightly larger than the outer diameter of the tie bolt.

[0011] According to another aspect of the present invention, the present invention provides a construction method for a composite wall of exposed bricks and exposed concrete with central insulation, for realizing the construction of the above-mentioned composite wall of exposed bricks and exposed concrete with central insulation, comprising the following specific steps: S100: Constructing fair-faced brick walls and simultaneously setting up anchoring connection components: Fix the longitudinal perforated bars on the foundation or ground beam at the designed interval, insert fair-faced bricks with reserved holes into the longitudinal perforated bars and lay them in a staggered manner, and when the bricks are laid to the set height during the construction process, lay in the transverse tie bars, anchoring sleeves and hook pre-embedded bars respectively. S200: A protective layer is set on the outside of the completed fair-faced brick wall, waterproof mortar is applied to the inside, and an insulation layer is fully laid on the inside of the waterproof mortar. S300: Using fair-faced brick wall as the outer formwork, the inner supporting formwork is erected and then secured with anchoring sleeves and tie bolts before pouring fair-faced concrete wall. S400: After the concrete reaches the demolding strength, remove the supporting formwork and main and secondary back ribs, unscrew the tie bolts and recycle them, and seal and repair the bolt holes in the wall. S500: Remove the protective layer on the outside of the exposed brick wall, grout the joints, and clean and maintain the wall to complete the composite wall construction.

[0012] Further, step S100 includes: During the masonry process, horizontal tie bars are laid at fixed intervals every few layers of bricks, and the horizontal tie bars are tied to the longitudinal perforated bars. During the masonry process, anchoring sleeves are installed at certain longitudinal and transverse intervals. The upper and lower pipe openings are fitted onto the longitudinal perforated bars at the corresponding positions and embedded into the reserved holes in the fair-faced concrete bricks. The threaded pipe openings extend vertically into the inner side of the wall. A protective sleeve is fitted onto the threaded pipe openings, and the end of the protective sleeve is flush with the inner side of the pre-cast fair-faced concrete wall. During the masonry process, bent hooks are embedded in the brickwork at certain longitudinal and transverse intervals. One end is embedded into the brick joint and hooks the longitudinal perforated bar, while the other end extends into the pre-cast fair-faced concrete wall.

[0013] Furthermore, in step S200, the insulation layer panels are selected with the same size as the spacing of the protective sleeve or the embedded bar of the hook, and the space occupied by the embedded bar of the hook is reserved at the same position of each insulation layer panel for standardized construction.

[0014] Furthermore, in step S300, before setting up the inner support formwork, the steel bars of the fair-faced concrete wall are tied, and water and electrical equipment pipelines or various types of sleeves are laid out as needed.

[0015] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects: 1. This invention discloses a composite wall system of exposed brick and exposed concrete with central insulation. The composite wall consists of an outer layer of genuine exposed brick and an inner layer of cast-in-place exposed concrete, serving as its inner and outer surfaces. A functional protective layer providing both insulation and waterproofing is fully laid between the two layers. Simultaneously, water and electricity pipelines are concealed within the wall during construction. This solves the problems of existing technologies where external insulation layers are prone to aging, internal insulation layers cannot achieve the desired dual exposed concrete effect, and secondary renovations of pipelines damage the wall structure. The wall system achieves reduced heat transfer and meets building energy efficiency standards while fully preserving the authentic construction texture of both exposed brick and exposed concrete, enhancing the expressiveness of both interior and exterior facades. Furthermore, the integrated installation of water and electricity pipelines eliminates the need for secondary trenching or additional decorative coverings, directly creating a high-quality indoor and outdoor space.

[0016] 2. The present invention provides a composite wall of exposed brick and exposed concrete with central insulation. Waterproof mortar and insulation layer are applied to the inner surface of the exposed brick wall. The water storage and drainage capacity formed by the porous and breathable characteristics of the exposed brick wall, combined with the sealing effect of the waterproof mortar and insulation layer and the high impermeability of the inner cast-in-place concrete wall, forms a three-layer waterproof defense of "drainage-blockage-resistance". This solves the problem of the insulation layer being prone to moisture failure in existing composite walls and realizes the multi-layer waterproof capability of the composite wall.

[0017] 3. The present invention discloses a composite wall of fair-faced brick and fair-faced concrete with central insulation and a construction method thereof. The present invention employs an anchoring assembly consisting of a three-way anchoring sleeve, tie bolts, a protective sleeve, and a hook-embedded bar. During the construction phase, the fair-faced brick wall and the laid functional protective layer are used as the outer formwork for concrete pouring. Only the inner formwork needs to be supported. The tie bolts are fastened to the threaded pipe of the anchoring sleeve through the protective sleeve to resist the lateral pressure of the pouring. This solves the problem that traditional cast-in-place walls require double-sided formwork, which results in a large amount of formwork and high labor costs. This application allows for single-sided formwork support, saving and simplifying formwork support, facilitating construction, and shortening the construction period.

[0018] 4. The present invention provides a composite wall of fair-faced brick and fair-faced concrete with central insulation, and a construction method thereof. It adopts an integrated anchoring connection component consisting of longitudinal perforated bars, transverse tie bars, tee anchoring sleeves, tie bolts, protective sleeves, and hook-embedded bars. After the concrete hardens and the formwork is removed, the tie bolts can be unscrewed in the reverse direction and recycled for reuse. The anchoring sleeves and hook-embedded bars remain permanently in the wall, forming a rigid connection between the inner and outer walls together with the longitudinal perforated bars and transverse tie bars. This strengthens the stability of the composite wall and significantly improves the overall stability and crack resistance of the composite wall under earthquakes, wind loads, and other effects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the foundation support and pre-installed longitudinal perforated bars under the masonry fair-faced brick wall according to an embodiment of the present invention; Figure 2 A schematic diagram of a finished brick with pre-drilled longitudinal holes, according to an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the separation of the anchor sleeve reinforcement and the tie bolt in an embodiment of the present invention; Figure 4 This is a schematic diagram of the threaded pipe end protective sleeve of the anchoring sleeve reinforcement according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the inner side of a fair-faced brick wall constructed using a composite wall of fair-faced bricks and fair-faced concrete with central insulation, according to an embodiment of the present invention. Figure 6 This is a schematic diagram of applying waterproof mortar to the inner side of a fair-faced brick and fair-faced concrete composite wall with central insulation, according to an embodiment of the present invention. Figure 7 This is a schematic diagram of an embodiment of the present invention, showing the laying of an insulation layer on the inner side of a fair-faced brick and fair-faced concrete composite wall with central insulation. Figure 8 This is a schematic diagram of the inner structural layer of a composite wall of centrally insulated fair-faced bricks and fair-faced concrete according to an embodiment of the present invention. Figure 9 This is a schematic diagram of the fair-faced concrete wall inside a composite wall of fair-faced bricks and fair-faced concrete with central insulation, according to an embodiment of the present invention. Figure 10 This is a schematic diagram of the fair-faced brick wall on the outside of a composite wall of fair-faced brick and fair-faced concrete with central insulation, according to an embodiment of the present invention. Figure 11 This is a flowchart illustrating a construction method for a composite wall of exposed bricks and exposed concrete with central insulation, according to an embodiment of the present invention.

[0020] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-fair-faced brick wall, 2-fair-faced concrete wall, 3-insulation layer, 4-fair-faced brick, 401-reserved hole, 5-longitudinal perforated bar, 6-transverse tie bar, 7-anchoring sleeve, 701-upper pipe opening, 702-lower pipe opening, 703-threaded pipe opening, 8-hooked embedded bar, 9-protective sleeve, 10-tie bolt, 11-waterproof mortar, 12-support formwork, 13-main and secondary back ribs. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, inside, outside, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Example 1 like Figure 5-10 As shown, this embodiment of the invention provides a composite wall of exposed brick and exposed concrete with central insulation, including an outer exposed brick wall 1, an inner exposed concrete wall 2, an insulation layer 3, and anchoring connection components. The exposed brick wall 1 serves as both an exterior decorative layer and the outer formwork for the exposed concrete wall 2, while the exposed concrete wall 2 serves as the inner decorative layer. The insulation layer 3 is fully laid between the exposed brick wall 1 and the exposed concrete wall 2 to achieve the wall's insulation function. The anchoring connection components penetrate or are embedded in each structural layer of the composite wall, firmly binding the outer exposed brick wall 1, the exposed concrete wall 2, and the intermediate insulation layer 3 into a single rigid mechanical connection. This not only effectively transfers interlayer loads but also ensures the structural integrity and lateral displacement resistance of the composite wall. like Figure 2 As shown, the exposed brick wall 1 is constructed by staggered joints of exposed bricks 4. The exposed brick wall itself is porous, has air permeability and drainage capacity, and the exposed bricks 4 have reserved holes 401.

[0024] The fair-faced concrete wall 2 is cast on site and has high impermeability.

[0025] The anchoring connection assembly includes longitudinal perforated bars 5, transverse tie bars 6, anchoring sleeve bars 7, hook-embedded bars 8, protective sleeves 9, and tie bolts 10.

[0026] like Figure 1 As shown, the longitudinal perforated reinforcement 5 is a steel bar that is vertically installed along its entire length at a certain interval within the fair-faced brick wall 1. It is pre-fixed to the foundation or ground beam of the fair-faced brick wall 1, vertically passing through the reserved holes 401 of each layer of fair-faced bricks 4, and simultaneously passing through the anchoring sleeve reinforcement 7. It is fixed to the transverse tie reinforcement 6 by binding, and provides anchoring points for the hook-embedded reinforcement 8. On the one hand, it provides vertical positioning guidance for the fair-faced brick wall 1, ensuring that the holes are aligned when the fair-faced bricks 4 are laid in a staggered manner; on the other hand, it serves as the installation anchoring carrier for the anchoring sleeve reinforcement 7 and the hook-embedded reinforcement 8, forming the main force transmission structure and bearing part of the horizontal shear force.

[0027] The transverse tie bar 6 is a steel wire that is horizontally installed at certain intervals along the height of the wall in the exposed brick wall 1. It is arranged perpendicular to the longitudinal perforated bar 5 and is tied or welded to the longitudinal perforated bar 5 to form a spatial mesh skeleton, thereby enhancing the integrity of the exposed brick wall itself.

[0028] like Figure 3 and Figure 4 As shown, the anchoring sleeve 7 is a hollow three-way tubular component, which is arranged longitudinally and transversely within the composite wall. It includes an upper pipe opening 701, a lower pipe opening 702, and a threaded pipe opening 703. The inner diameters of the upper pipe opening 701 and the lower pipe opening 702 match the diameter of the longitudinal perforated rib 5 and the inner diameter of the reserved hole 401 of the fair-faced brick 4. The longitudinal perforated rib 5 can be inserted into the interior. The upper pipe opening 701 and the lower pipe opening 702 can be fitted into the reserved hole 401 of the adjacent fair-faced brick 4. The threaded pipe opening 703 faces the inner side of the wall, and its inner wall is provided with an internal thread that matches the external thread of the tie bolt 10. The two can be rotated to lock and fix or separated.

[0029] The hook-embedded reinforcing bars 8 are arranged longitudinally and transversely within the composite wall. Both ends are equipped with hooks. One end is embedded into the transverse brick joint of the fair-faced brick wall 1 and hooks the longitudinal perforated reinforcing bar 5. The other end extends into the inner side of the fair-faced concrete wall 2. After the inner side of the fair-faced concrete wall 2 is poured, the hook-embedded reinforcing bars 8 are firmly held and form pull-out anchor points to strengthen the fair-faced concrete wall 2.

[0030] The protective sleeve 9 is a thin-walled PVC or metal round tube, the end of which can be sleeved and fixed to the outside of the threaded pipe opening 703 of the anchor sleeve 7. The inner diameter needs to be slightly larger than the outer diameter of the tie bolt 10 to ensure that the tie bolt can be freely inserted and pulled out. One end is temporarily sleeved on the outside of the threaded pipe opening 703 of the anchor sleeve 7, and the other end is flush with the outer surface of the fair-faced concrete wall 2. During the process of laying waterproof mortar 11, laying insulation layer 3 and pouring fair-faced concrete wall 2, the tie bolt 10 is protected, and the tie bolt 10 is convenient for recycling.

[0031] The tie bolt 10 is a long threaded rod with threads at both ends. One end is the connecting end, which passes through the reserved hole of the protective sleeve 9 and is screwed into the threaded pipe 703 of the anchoring sleeve 7 and tightened. The other end is the fastening end, which passes through the opening on the inner support template 12 of the fair-faced concrete wall 2 and is locked by a washer and nut, thus tying the outer fair-faced brick wall 1 and the support template 12 into an integral casting template to resist the lateral pressure during the casting of the fair-faced concrete wall 2.

[0032] The insulation layer 3 is made of a hydrophobic material and is modularly designed. The size of the panels is consistent with the spacing of the protective sleeve 9 or the hook-embedded ribs 8 in both directions. Space is reserved in each insulation layer 3 panel for the space occupied by the protective sleeve 9 or the hook-embedded ribs 8 to facilitate standardized construction.

[0033] In this embodiment of the invention, the composite wall of exposed brick and exposed concrete with central insulation is constructed. The exposed brick wall 1 serves as both an exterior decorative layer and an outer formwork. Vertical positioning and force transmission are achieved through longitudinal perforated bars 5. The longitudinal perforated bars 5 pass through the reserved holes 401 of the exposed brick 4 and are tied to the transverse tie bars 6 to form a mesh skeleton. Anchor sleeves 7 are fitted onto the longitudinal perforated bars 5 and embedded in the reserved holes 401 of the exposed brick 4. The threaded pipe 703 extending inward passes through the insulation layer 3 and is threadedly connected to one end of the tie bolt 10. One end of the hook-embedded bar 8 hooks the longitudinal perforated bar 5, and the other end passes through the insulation layer 3 and is anchored into the inner cast-in-place exposed concrete wall 2. The other end of the tie bolt 10 passes through the support formwork 12 and is tightened with a nut, thereby temporarily binding the outer exposed brick wall, the insulation and waterproof layer and the inner formwork together. After the inner fair-faced concrete wall 2 is poured and hardened, the longitudinal perforated bars 5, the transverse tie bars 6, and the hook-embedded bars 8 together form a rigid mechanical connection between the fair-faced brick wall 1 and the fair-faced concrete wall 2, saving and simplifying formwork support, facilitating construction, and shortening the construction period. After completion, the inner and outer walls are also stabilized by these components, forming a synergistic force-bearing system and jointly enhancing the stability of the composite wall.

[0034] Example 2 like Figure 11 As shown, this embodiment of the invention provides a construction method for a composite wall of centrally insulated fair-faced bricks and fair-faced concrete, including the following specific steps: S100: Constructing a fair-faced brick wall and simultaneously installing anchoring connection components: Longitudinal perforated bars 5 are fixed at designed intervals on the foundation or ground beam of the fair-faced brick wall 1. Fair-faced bricks 4 with pre-drilled holes 401 are selected, and the fair-faced bricks 4 are fitted into the longitudinal perforated bars and laid in a staggered manner. During the construction process, the masonry mortar is embedded into the pre-drilled holes 401 for consolidation. During the construction process, when the wall reaches the set height, transverse tie bars 6, anchoring sleeves 7, and hook-embedded bars 8 are respectively installed, with the longitudinal and transverse spacing of the anchoring sleeves 7 and hook-embedded bars 8 being consistent. Specifically… Insert the transverse tie bars 6 and tie them to the longitudinal perforated bars 5. Anchor sleeve 7 is installed, and the upper pipe opening 701 and lower pipe opening 702 are fitted onto the longitudinal perforated bar 5 at the corresponding positions and embedded into the reserved hole 401 of the fair water brick 4. The threaded pipe opening 703 extends vertically to the inner side of the wall. A protective sleeve 9 is fitted onto the threaded pipe opening 703. The end of the protective sleeve 9 is flush with the inner side of the pre-cast fair water concrete wall 3. The bent hook-embedded reinforcement 8 is installed, with one end inserted into the brick joint and hooked to the longitudinal perforated reinforcement 5, and the other end extending into the pre-cast fair-faced concrete wall 3.

[0035] S200: Laying the functional layer: A protective layer is set on the outside of the completed fair-faced brick wall 1 to prevent subsequent construction from damaging or polluting the wall's appearance. Waterproof mortar 11 is applied to the inside, and the waterproof mortar is reinforced at the protective sleeve 9 and the hook-embedded reinforcement 8 to ensure that both extend beyond the waterproof mortar 11; the insulation layer 3 is fully laid inside the waterproof mortar 11. The insulation layer 3 panels are selected with the same size as the spacing of the protective sleeve 9 or the hook-embedded reinforcement 8. Space can be left at the same position of each insulation layer panel to accommodate the space occupied by the protective sleeve 9 or the hook-embedded reinforcement 8 for standardized construction.

[0036] S300: Using the fair-faced brick wall 1 as the outer formwork, a supporting formwork 12 is erected, and after being secured with anchoring sleeves 7 and tie bolts 10, a cast-in-place fair-faced concrete wall is poured: Specifically, The reinforcing bars of the fair-faced concrete wall 2 are tied, and water, electricity, and other equipment pipelines are laid out or various sleeves are pre-embedded as needed. The support template 12 is assembled, and the end of the protective sleeve 9 is just touching the support template 12 to ensure the thickness and flatness of the poured wall. The support template 12 is selected with a size that matches the spacing of the protective sleeve 9. The assembly position of the support template 12 leaves space for the protective sleeve 9. The tie bolt 10 is passed through the protective sleeve 9, one end is inserted into the threaded pipe 703 of the anchor sleeve 7, and is tightened clockwise to the threaded pipe 703. The other end passes through the support template 12. The main and secondary back ribs 13 are set on the inner side of the support template 12, and the tie bolt 10 is tightened with nuts. If necessary, the template is fixed with diagonal braces on the outside to form a closed pouring space between the support template 12 and the fair-faced brick wall 1 on the outside. During the pouring process of the concrete wall, the concrete is poured and vibrated as needed, and curing is carried out after pouring.

[0037] S400: After the concrete reaches the demolding strength, remove the supporting formwork 12 and the main and secondary back ribs 13, loosen the thread between the tie bolt 10 and the threaded pipe 703 by rotating counterclockwise, unscrew the tie bolt 10 and retract it, seal and repair the bolt holes in the wall, and leave the anchoring sleeve 7 and the protective sleeve 9 in the composite wall.

[0038] S500: Remove the protective layer on the outside of the exposed brick wall 1, grout the joints and clean and maintain it to complete the construction of the exposed brick and exposed concrete composite wall with central insulation.

[0039] Example 3 This invention provides a construction method for a composite wall of exposed bricks and exposed concrete with a central insulation layer in a cultural building, comprising the following steps: Step 1: As Figure 1As shown, at the foundation of section 1 of the exposed brick wall, longitudinal perforated reinforcing bars 5 with a diameter of 10mm are pre-embedded at 250mm intervals, the spacing matching the bricklaying intervals. Pre-cast exposed bricks 4 with pre-drilled holes are selected. Figure 2 The dimensions of the clear water brick 4 are 240mm in length, 115mm in width, and 53mm in height. The clear water brick 4 is inserted into the longitudinal perforated bar 5 and laid in a staggered manner. During the laying process, the masonry mortar is embedded into the longitudinal reserved hole 401 for consolidation.

[0040] like Figure 5 As shown, during the masonry process, anchoring sleeves 7 are installed at intervals of 500mm (two layers of fair-faced bricks) horizontally and 600mm (ten layers of fair-faced bricks) vertically, and protective sleeves 9 are fitted on them; hook-embedded bars 8 are installed at intervals of 500mm (two layers of fair-faced bricks) horizontally and 600mm (ten layers of fair-faced bricks) vertically; and transverse tie bars 6 are installed at intervals of 300mm (five layers of fair-faced bricks) vertically and tied to the longitudinal perforated bars 5.

[0041] Step 2: As Figure 6 and Figure 7 As shown, a protective layer is set on the outside of the already constructed fair-faced brick wall 1, and waterproof mortar 11 is applied to the inside for leveling and repair. The waterproof mortar is reinforced and sealed at the positions of the protective sleeve 9 and the hook-embedded reinforcement 8. The insulation layer 3 is fully laid on the inside of the waterproof mortar 11. The insulation layer 3 is made of 500mm x 600mm panels, and space is left at the same position of each insulation and waterproof layer panel to accommodate the space occupied by the protective sleeve 9 or the hook-embedded reinforcement 8.

[0042] Step 3: As Figure 8 As shown, the inner fair-faced concrete wall formwork is erected, and the fair-faced brick wall and protective layer are used as the outer formwork. After being secured with anchoring sleeves and tie bolts, the fair-faced concrete wall is poured. Specifically, First, prepare for the erection of the inner support formwork 12, tie the steel bars of the fair-faced concrete wall 3, and lay water, electricity and other equipment pipelines or pre-embed various sleeves as needed.

[0043] Assemble the template inside the fair-faced concrete wall and control the size so that the inner end of the protective sleeve 9 just touches the supporting template 13, thereby ensuring the thickness and flatness of the poured wall. In this embodiment, the concrete wall is reserved with a width of 200mm, and the length of the anchoring sleeve 9 extending out of the insulation layer 3 is controlled according to this size.

[0044] Insert tie bolts 10 into the protective sleeve 9. One end of the tie bolt 10 is fastened to the threaded port 703 of the anchor sleeve 7 by threads, and the other end passes through the support template 12. Main and secondary back ribs 13 are set inside the support template 12 and fastened by nuts. Pour fair-faced concrete wall and perform curing.

[0045] Step 4: As Figure 9 As shown, after the concrete to be poured has been cured, the main and secondary back ribs 13 and the supporting template 12 are removed, the tie bolts 10 are unscrewed and recycled, and the bolt holes in the wall are sealed and repaired; the anchoring sleeve 7 and the protective sleeve 9 remain in the composite wall.

[0046] Step 5: As Figure 10 As shown, the protective layer on the outside of the exposed brick wall 1 is removed, the joints are grouted, and cleaning and maintenance are carried out to complete the construction of the composite wall of exposed brick and exposed concrete with central insulation.

[0047] In this embodiment of the invention, the fair-faced brick wall on the outside of the composite wall of fair-faced brick and fair-faced concrete quickly drains the small amount of water that has seeped in, the waterproof mortar layer and the insulation layer block further water penetration, and the cast-in-place fair-faced concrete wall provides the final watertight barrier, significantly improving the overall waterproof durability of the wall.

[0048] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A composite wall structure of exposed bricks and exposed concrete with central insulation, characterized in that, include The outer exposed brick wall (1), the inner exposed concrete wall (2), the insulation layer (3) fully laid between the exposed brick wall (1) and the exposed concrete wall (2), and the anchoring connection assembly, wherein the anchoring connection assembly includes longitudinal perforated bars (5), transverse tie bars (6), anchoring sleeve bars (7), hook embedded bars (8), protective sleeves (9), and tie bolts (10), wherein, The exposed brick wall (1) is constructed by staggered joints of multiple exposed bricks (4) with pre-drilled holes (401), and the exposed brick wall (1) contains: Several vertically spaced longitudinal perforated bars (5) are inserted into the reserved holes (401) of the water-retaining brick (4); The transverse tie bars (6) arranged at several horizontal intervals are fixedly connected to the longitudinal perforated bars (5); The anchoring sleeve (7) is arranged in multiple longitudinal and transverse intervals. The anchoring sleeve (7) is a three-way pipe structure, including an upper pipe opening (701), a lower pipe opening (702), and a threaded pipe opening (703) extending towards the inner side of the composite wall. The upper pipe opening (701) and the lower pipe opening (702) are fitted into the reserved holes (401) of the adjacent fair-faced bricks (4). The longitudinal perforated bar (5) passes through the upper pipe opening (701) and the lower pipe opening (702). The threaded pipe opening (703) faces the inner side of the wall. The inner wall is connected to the tie bolt (10), and the outer wall is fitted with the protective sleeve (9) used to protect the tie bolt (10) during construction. Multiple longitudinally and transversely spaced pre-embedded reinforcing bars (8) are provided. One end of the pre-embedded reinforcing bars (8) is bent into a hook shape and hooks the longitudinal perforated reinforcing bar (5), while the other end extends into the fair-faced concrete wall (2).

2. The composite wall of exposed brick and exposed concrete with central insulation as described in claim 1, characterized in that, The tie bolt (10) is a long screw with threads at both ends. One end passes through the protective sleeve (9) and is screwed into the threaded port (703) of the anchor sleeve (7). The other end is fastened to the inner support template (12) of the fair-faced concrete wall (2) by a washer and nut. The tie bolt (10) is removable and recyclable.

3. The composite wall of exposed brick and exposed concrete with central insulation as described in claim 2, characterized in that, The threaded end (703) of the anchor sleeve (7) is provided with an internal thread that matches the thread of the tie bolt (10).

4. The composite wall of exposed brick and exposed concrete with central insulation as described in any one of claims 1-3, characterized in that, The inner diameters of the upper pipe opening (701) and lower pipe opening (702) of the anchor sleeve (7) match the diameter of the longitudinal perforated bar (5) and the inner diameter of the reserved hole (401) of the clear water brick (4).

5. The composite wall of exposed brick and exposed concrete with central insulation as described in any one of claims 1-3, characterized in that, Waterproof mortar (11) is also provided between the inner side of the clear water brick wall (1) and the insulation layer (3), and the insulation layer is a water-repellent insulation layer.

6. The composite wall of exposed brick and exposed concrete with central insulation as described in any one of claims 1-3, characterized in that, The inner diameter of the protective sleeve (9) is slightly larger than the outer diameter of the tie bolt (10).

7. A construction method for a composite wall of exposed bricks and exposed concrete with central insulation, used to implement the construction of the composite wall of exposed bricks and exposed concrete with central insulation as described in any one of claims 1-6, characterized in that, The specific steps include the following: S100: Constructing a fair-faced brick wall and simultaneously setting up anchoring connection components: Fix the longitudinal perforated bars (5) on the foundation or ground beam at the designed spacing, insert the fair-faced bricks (4) with reserved holes (401) into the longitudinal perforated bars (5) and lay them in a staggered manner. During the construction process, when the bricks are laid to the set height, lay in the transverse tie bars (6), anchoring sleeve bars (7) and hook pre-embedded bars (8) respectively. S200: A protective layer is set on the outside of the completed fair-faced brick wall (1), waterproof mortar (11) is applied to the inside, and a thermal insulation layer (3) is fully laid on the inside of the waterproof mortar (11). S300: Using the fair-faced brick wall (1) as the outer formwork, the inner support formwork (12) is erected and then secured by the anchoring sleeve (7) and tie bolts (10) before pouring the fair-faced concrete wall (2). S400: After the concrete reaches the demolding strength, remove the supporting formwork (12) and the main and secondary back ribs (13), unscrew the tie bolts (10) and recycle them, and seal and repair the bolt holes in the wall. S500: Remove the protective layer on the outside of the exposed brick wall (1), grout the joints and clean and maintain it to complete the construction of the composite wall.

8. The construction method of the composite wall of fair-faced brick and fair-faced concrete with central insulation as described in claim 7, characterized in that, Step S100 includes: During construction, horizontal tie bars (6) are laid at fixed intervals, with several layers of bricks, and the horizontal tie bars (6) are tied to the longitudinal perforated bars (5). During the masonry process, anchoring sleeves (7) are installed at certain longitudinal and transverse intervals. The upper pipe opening (701) and the lower pipe opening (702) are fitted onto the longitudinal perforated bars (5) at the corresponding positions and embedded into the reserved holes (401) of the fair-faced concrete bricks (4). The threaded pipe opening (703) extends vertically to the inner side of the wall. A protective sleeve (9) is fitted onto the threaded pipe opening (703). The end of the protective sleeve (9) is flush with the inner side of the pre-cast fair-faced concrete wall (3). During the masonry process, the hook-embedded bars (8) are laid at certain longitudinal and transverse intervals. One end is laid into the brick joint and hooks the longitudinal perforated bar (5), while the other end extends into the interior of the pre-cast fair-faced concrete wall (3).

9. The construction method of the composite wall of fair-faced brick and fair-faced concrete with central insulation as described in claim 7, characterized in that, In step S200, the insulation layer (3) plate is selected with the same size as the arrangement spacing of the protective sleeve (9) or the hook embedded bar (8), and the space occupied by the protective sleeve (9) or the hook embedded bar (8) is reserved at the same position of each insulation layer (3) plate for standardized construction.

10. The construction method of the composite wall of fair-faced brick and fair-faced concrete with central insulation as described in claim 7, characterized in that, In step S300, before setting up the inner support formwork (12), the steel bars of the fair-faced concrete wall (3) are tied, and water and electrical equipment pipelines or various types of sleeves are laid out.

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