Full-decoration type prefabricated large-module building and construction method

Abstract

The full-decoration type prefabricated large-module building comprises an upper prefabricated large module and a lower prefabricated large module, the upper prefabricated large module and the lower prefabricated large module are the same in structure and each comprise a top plate and a plurality of outer walls with decorative faces, the outer walls are connected to the bottom of the top plate, and a suspended ceiling is arranged at the bottom of the top plate; fabricated wall surfaces are arranged on the inner sides of the outer walls, raised floors are arranged between the bottom ends of the fabricated wall surfaces, and the raised floors are laid on the tops of the top plates in the lower prefabricated large modules; the upper prefabricated large module is arranged on the top of the top plate of the lower prefabricated large module through the bottom of the outer wall, first steel bar parts are arranged on the edge area of the outer wall of the upper prefabricated large module, and second steel bar parts matched with the first steel bar parts and staggered with the first steel bar parts are arranged on the top of the top plate of the lower prefabricated large module. The first steel bar part and the second steel bar part are inserted in a staggered manner to form a concrete pouring area; a joint plugging device is arranged between the upper prefabricated large module and the lower prefabricated large module, and the concrete pouring area can be sealed through the joint plugging device.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a fully-decorated prefabricated large-module building and a construction method. Background Art

[0002] Concrete large modular building is a construction technology that involves dividing the horizontal structure of a building into several large modular structures, which are installed and connected on site to form a complete single-story structure. Then, these single-story structures are connected vertically layer by layer to form a complete building. The characteristics of this structure are that the structure is divided into large modules, the overall degree of prefabrication is high, and the amount of assembly work is small. The modules are prefabricated nomadically on site and then assembled at the building construction location, which can greatly shorten the construction period. It reduces high-altitude operations and improves construction safety.

[0003] For large modular buildings, it is necessary to complete the connection between the upper and lower modules on site more conveniently, so it is necessary to design an upper and lower connection method that is easy to construct. In addition, in order to further reduce the workload on site, the decoration of large modular buildings needs to be completed in the factory. At the same time, since a certain amount of wet work such as pouring concrete is required when connecting the upper and lower concrete, the existing large modular buildings that carry out wet work will affect the decoration completed in the factory in advance. Summary of the invention

[0004] In view of the above technical problems existing in existing large modular buildings, the purpose of the present invention is to provide a fully decorated prefabricated large modular building and a construction method. First, the structure and decoration of the large modular building are designed in an integrated manner so that the two can fully cooperate. A connection method between the upper and lower structures and the decoration layer is invented to ensure the continuity of the upper and lower structures and decoration. At the same time, a method is invented in which the decoration layer also serves as an inner formwork for concrete pouring, which can prevent the pollution of the internal decoration during the pouring of concrete and reduce the workload when splicing the upper and lower modules on site, thereby realizing the rapid and high-quality construction of large modular buildings on site.

[0005] In order to achieve the above-mentioned purpose, the fully decorated prefabricated large module building provided by the present invention comprises an upper prefabricated large module and a lower prefabricated large module. The upper prefabricated large module and the lower prefabricated large module have the same structure, and both comprise a top plate and a plurality of external walls with decorative surfaces connected to the bottom of the top plate. A suspended ceiling is provided at the bottom of the top plate, and an assembled wall surface is provided on the inner side of the external wall. An elevated floor is provided between the bottom ends of the assembled wall surfaces, and the elevated floor is laid on the top of the top plate in the lower prefabricated large module. Gaps are provided between the suspended ceiling and the top plate, between the assembled wall surface and the external wall, and between the elevated floor and the top plate in the lower prefabricated large module.

[0006] The upper prefabricated large module is arranged on the top of the roof of the lower prefabricated large module through the bottom of the outer wall, the edge area of ​​the outer wall of the upper prefabricated large module is provided with a first steel bar portion, and the top of the roof of the lower prefabricated large module is provided with a second steel bar portion that cooperates with the first steel bar portion and is staggered, and the first steel bar portion and the second steel bar portion are staggered and plugged to form a concrete pouring area for concrete pouring;

[0007] A joint sealing device is arranged between the upper prefabricated large module and the lower prefabricated large module, and the concrete pouring area can be closed by the joint sealing device.

[0008] Furthermore, other areas of the bottom of the outer wall of the upper prefabricated large module except the first reinforcement part and other areas of the top plate of the lower prefabricated large module except the second reinforcement part are connected by mortar.

[0009] Furthermore, a skirting board is provided between the elevated floor and the assembled wall for covering.

[0010] Furthermore, the joint sealing device is composed of an internal template, a lower sealing block, a positioning latch, a flexible material, an upper sealing block, and an external template;

[0011] The internal template is L-shaped and is arranged inside the upper prefabricated large module and located inside the concrete pouring area, one end of the internal template is fixed to the top plate in the lower prefabricated large module, and the other end is fixed to the elevated floor in the upper prefabricated large module;

[0012] The lower blocking block is fixed to the top of the internal template, and the positioning pin and the flexible material are attached to the top of the lower blocking block;

[0013] The upper blocking block is fixed on the outer wall of the upper prefabricated large module and corresponds to the lower blocking block. The upper blocking block is provided with a groove at the position corresponding to the positioning pin. When the first steel bar portion and the second steel bar portion are misaligned and plugged, the upper blocking block and the lower blocking block can be plugged together at the same time, so that the positioning pin can be inserted into the groove, and the groove presses the flexible material, so that the upper blocking block and the lower blocking block are sealed, and the inner side of the concrete pouring area is blocked;

[0014] The external formwork is arranged outside the concrete pouring area, and the external formwork is respectively connected to the outer side of the outer wall of the upper prefabricated large module and the outer side of the outer wall of the lower prefabricated large module to seal the outer side of the concrete pouring area.

[0015] In order to achieve the above object, the construction method of the fully decorated prefabricated large modular building provided by the present invention is used for any one of the above items, and the construction method comprises:

[0016] S1: Production of large concrete modules. Prepare the molds in the prefabrication yard according to the design requirements, including cleaning and inspection of the bottom mold, outer mold and various inner molds. Pre-embed the first steel bar part and the second steel bar part and the connector according to the design position to ensure that the position and length of the dislocated connecting steel bars of the upper prefabricated large module and the lower prefabricated large module meet the requirements. Accurately reserve pipeline holes and decoration connection interfaces to prepare for subsequent decoration construction. Pour concrete according to the mix ratio requirements and perform maintenance to ensure that the concrete reaches the designed strength;

[0017] S2: Exterior finishing construction, including base treatment of the exterior wall, including cleaning, leveling and waterproofing construction, spraying of exterior wall finishing or installation of decorative surface layer according to design requirements, and protection of the finished exterior finishing to avoid damage during subsequent construction;

[0018] S3: Internal decoration construction, first install the raised floor, carry out the leveling layer construction, install the adjustment bracket and keel system, and finally lay the surface board to complete the installation of the raised floor. Then for the prefabricated wall construction, first install the wall frame system, then arrange the internal pipelines of the wall, and finally install the wall board to complete the installation of the raised floor. For the installation of the ceiling, first set the primary and secondary keels, then complete the pipeline layout, and finally install the ceiling panel to complete the installation of the ceiling.

[0019] S4: Install the joint blocking device, fix the internal formwork on the top plate in the lower prefabricated large module and the raised floor in the upper prefabricated large module, install the lower blocking block on the internal formwork, install the positioning pins and flexible materials on the lower blocking block, and fix the upper blocking block on the outer wall in the upper prefabricated large module;

[0020] S5: Finished product protection and transportation: fully protect the assembled walls, raised floors, ceilings and other parts, use special transportation equipment for overall transportation, and reasonably set support points to avoid deformation during transportation;

[0021] S6: On-site installation and connection, measurement and layout, determine the installation position of the module, use professional equipment to hoist it into place, adjust the module position, ensure that it is aligned up and down, align and plug the upper blocking block with the lower blocking block, and then check the insertion of the positioning pin and the compression of the flexible material;

[0022] S7: Structural connection construction, check the fixation of internal formwork, support external formwork to form pouring space, pour high-performance concrete and vibrate to compact it, and maintain the concrete to the designed strength;

[0023] S8: Finishing repair and finished product acceptance, remove the external formwork, repair the exterior finishing of the exterior wall, check the integrity of the interior decoration, clean up the construction site and protect the finished product.

[0024] The fully decorated prefabricated large modular building and construction method provided by the present invention firstly integrates the structure and decoration of the large modular building, so that the two can fully cooperate, and invents a connection method between the upper and lower modules, and ensures the continuity of the upper and lower structures and decorations through staggered connection of steel bars. At the same time, a joint sealing device 600 is set in the staggered connection area of ​​the steel bars, which can not only prevent the pollution of the internal decoration by concrete during pouring, but also reduce the workload when splicing the upper and lower modules on site, thereby realizing the fast and high-quality construction of the large modular building on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Figure 1 A schematic diagram of the structure of the upper prefabricated large module in the fully decorated prefabricated large module building provided by the present invention;

[0027] Figure 2 A cross-sectional view of an upper prefabricated large module in a fully decorated prefabricated large module building provided by the present invention;

[0028] Figure 3 A side view of an upper prefabricated large module in a fully decorated prefabricated large module building provided by the present invention;

[0029] Figure 4 The present invention is a schematic structural diagram of a joint sealing device in a fully-decorated prefabricated large-module building.

[0030] Upper prefabricated large module 100, lower prefabricated large module 200, first reinforcement part 300, second reinforcement part 400, concrete pouring area 500, joint sealing device 600, seat mortar connection 700;

[0031] Top plate 110 , exterior wall 120 , suspended ceiling 130 , assembled wall 140 , raised floor 150 , skirting 160 , interior formwork 610 , lower blocking block 620 , positioning pin 630 , flexible material 640 , upper blocking block 650 , exterior formwork 660 . DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0033] See also Figure 1-Figure 3 , which is a schematic structural diagram of a fully decorated prefabricated large module building provided by the present invention.

[0034] According to the figure, it can be known that the fully-decorated prefabricated large module building provided by the present invention includes two components: an upper prefabricated large module 100 and a lower prefabricated large module 200.

[0035] The upper prefabricated large module 100 and the lower prefabricated large module 200 have the same structure, both of which include a top plate 110 and a plurality of external walls 120 with decorative surfaces connected to the bottom of the top plate 110. A suspended ceiling 130 is provided at the bottom of the top plate 110, and an assembled wall 140 is provided on the inner side of the external wall 120. An elevated floor 150 is provided between the bottom ends of the assembled wall 140. The elevated floor 150 is laid on the top of the top plate 110 in the lower prefabricated large module 200. There are gaps between the suspended ceiling 110 and the top plate 110, between the assembled wall 140 and the external wall 120, and between the elevated floor 150 and the top plate 110 in the lower prefabricated large module 200.

[0036] The upper prefabricated large module 100 is arranged on the top of the top plate 110 of the lower prefabricated large module 200 through the bottom of the outer wall 120, the edge area of ​​the outer wall 120 of the upper prefabricated large module 100 is provided with a first steel bar portion 300, and the top of the top plate 110 of the lower prefabricated large module 200 is provided with a second steel bar portion 400 that cooperates with the first steel bar portion 300 and is staggered, and the first steel bar portion 300 and the second steel bar portion 400 are staggered and plugged to form a concrete pouring area 500 for concrete pouring;

[0037] A joint sealing device 600 is provided between the upper prefabricated large module 100 and the lower prefabricated large module 200 , and the concrete pouring area 500 can be sealed by the joint sealing device 600 .

[0038] Compared with the prior art, this solution firstly integrates the structure and decoration of the large modular building, makes the two fully coordinated, invents a connection method between the upper and lower modules, and ensures the continuity of the upper and lower structures and decorations through the staggered connection of steel bars. At the same time, a joint sealing device 600 is set in the staggered connection area of ​​the steel bars, which can not only prevent the pollution of the internal decoration during the pouring of concrete, but also reduce the workload when splicing the upper and lower modules on site, thereby realizing the fast and high-quality construction of large modular buildings on site.

[0039] Specifically, in this solution, the elevated floor 150 is set up on the elevated ground, a gap is provided between the assembled wall 140 and the exterior wall 120, and a suspended ceiling 130 is used on the top. With such a decoration method, pipelines can be freely arranged in the cavity formed by the decoration, thereby improving the applicability of the decoration under various conditions.

[0040] Furthermore, if Figure 2 The other areas of the bottom of the outer wall 120 in the upper prefabricated large module 100 except the first steel bar part 300 and the other areas of the top plate 110 of the lower prefabricated large module 200 except the second steel bar part 400 are connected by mortar 700. Mortar connection is a common construction technology and will not be described in detail here.

[0041] Furthermore, if Figure 3For decoration, the upper and lower intersection areas are set at the intersection areas of the raised floor 150 and the assembled wall 140. The gap between the raised floor 150 and the assembled wall 140 is set according to conventional decoration practices, and a skirting 160 is set between the raised floor 150 and the assembled wall 140 for covering.

[0042] like Figure 4 The joint sealing device 600 is composed of an internal template 610, a lower sealing block 620, a positioning pin 630, a flexible material 640, an upper sealing block 650, and an external template 660.

[0043] The internal formwork 610 is L-shaped and is disposed inside the upper prefabricated large module 100 and located inside the concrete pouring area 500. One end of the internal formwork 610 is fixed to the top plate 110 in the lower prefabricated large module 200, and the other end is fixed to the raised floor 150 in the upper prefabricated large module 100. Both sides are firmly fixed, so that the internal formwork 610 has sufficient rigidity.

[0044] The lower blocking block 620 is fixed to the top of the inner template 610, and the positioning pin 630 and the flexible material 640 are attached to the top of the lower blocking block 620;

[0045] The upper blocking block 650 is fixed on the outer wall 120 in the upper prefabricated large module 100 and corresponds to the lower blocking block 620. The upper blocking block 650 is provided with a groove at the position corresponding to the positioning pin 630. When the first steel bar portion 300 and the second steel bar portion 400 are misaligned and plugged, the upper blocking block 650 and the lower blocking block 620 can be plugged together at the same time, so that the positioning pin 630 can be inserted into the groove, and the groove presses the flexible material, so that the upper blocking block 650 and the lower blocking block 620 are sealed, and the inner side of the concrete pouring area 500 is blocked;

[0046] The external formwork 660 is disposed outside the concrete pouring area 500, and the external formwork 660 is respectively connected to the outer side of the outer wall 120 of the upper prefabricated large module 100 and the outer side of the outer wall 120 of the lower prefabricated large module 200 to seal the outer side of the concrete pouring area 500;

[0047] The outer formwork 660 cooperates with the inner formwork 610 , the lower blocking block 620 , the positioning pin 630 , the flexible material 640 , and the upper blocking block 650 located on the inner side to close the concrete pouring area 500 .

[0048] Based on the fully decorated prefabricated large modular building formed by the above scheme, this scheme also provides a construction method, and the construction steps are as follows:

[0049] S1: Production of large concrete modules. Prepare the molds in the prefabrication yard according to the design requirements, including cleaning and checking the bottom mold, outer mold and various inner molds. Pre-embed the first steel bar part 300 and the second steel bar part 400 and the connectors according to the design position. Ensure that the position and length of the dislocated connecting steel bars of the upper prefabricated large module 100 and the lower prefabricated large module 200 meet the requirements. Accurately reserve pipeline holes and decoration connection interfaces to prepare for subsequent decoration construction. Pour concrete according to the mix ratio requirements and perform maintenance to ensure that the concrete reaches the designed strength.

[0050] S2: Exterior finishing construction, base treatment of the exterior wall 120, including cleaning, leveling and waterproofing construction, exterior wall 120 finishing spraying or decorative surface installation according to design requirements, finished product protection of the exterior finishing to avoid damage during subsequent construction.

[0051] S3: Internal decoration construction, first install the elevated floor 150, perform leveling layer construction, install the adjustment bracket and keel system, and finally lay the surface layer board to complete the installation of the elevated floor 150, then construct the assembled wall 140, first install the wall frame system, then arrange the internal pipelines of the wall, and finally install the wall board to complete the installation of the elevated floor 150, and install the ceiling 130, first set the primary and secondary keels, then complete the pipeline arrangement, and finally install the ceiling panel to complete the installation of the ceiling 130;

[0052] S4: Install the joint blocking device 600, fix the internal template 610 on the top plate 110 in the lower prefabricated large module 200 and the raised floor 150 in the upper prefabricated large module 100, install the lower blocking block 620 on the internal template 610, install the positioning pin 630 and the flexible material 640 on the lower blocking block 620, and fix the upper blocking block 650 on the outer wall 120 in the upper prefabricated large module 100;

[0053] S5: Finished product protection and transportation: fully protect the assembled wall 140, raised floor 150, ceiling 130 and other parts, use special transportation equipment for overall transportation, and reasonably set support points to avoid deformation during transportation;

[0054] S6: On-site installation and connection, measurement and layout, determine the installation position of the module, use professional equipment to hoist it into place, adjust the module position, ensure that it is aligned up and down, align and plug the upper blocking block 650 with the lower blocking block 620, and then check the insertion of the positioning pin 630 and the compression of the flexible material 640;

[0055] S7: Structural connection construction, check the fixing of the internal formwork 610, support the external formwork 660 to form a pouring space, pour high-performance concrete and vibrate it to make it dense, and maintain the concrete to the designed strength;

[0056] S8: Finishing repair and finished product acceptance, remove the external formwork 660, repair the external finishing of the external wall 120, check the integrity of the internal decoration, clean up the construction site and protect the finished product.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fully furnished prefabricated large modular building, characterized in that: It comprises an upper prefabricated large module and a lower prefabricated large module. The upper prefabricated large module and the lower prefabricated large module have the same structure, and both comprise a top plate and a plurality of external walls with decorative surfaces connected to the bottom of the top plate. A suspended ceiling is provided at the bottom of the top plate, and an assembled wall surface is provided on the inner side of the external wall. An elevated floor is provided between the bottom ends of the assembled wall surfaces. The elevated floor is laid on the top of the top plate in the lower prefabricated large module. Gaps are provided between the suspended ceiling and the top plate, between the assembled wall surface and the external wall, and between the elevated floor and the top plate in the lower prefabricated large module. The upper prefabricated large module is arranged on the top of the roof of the lower prefabricated large module through the bottom of the outer wall, the edge area of ​​the outer wall of the upper prefabricated large module is provided with a first steel bar portion, and the top of the roof of the lower prefabricated large module is provided with a second steel bar portion that cooperates with the first steel bar portion and is staggered, and the first steel bar portion and the second steel bar portion are staggered and plugged to form a concrete pouring area for concrete pouring; A joint sealing device is arranged between the upper prefabricated large module and the lower prefabricated large module, and the concrete pouring area can be closed by the joint sealing device.

2. The fully furnished prefabricated large modular building according to claim 1, characterized in that: The other areas of the outer wall bottom of the upper prefabricated large module except the first reinforcement part and the other areas of the top plate of the lower prefabricated large module except the second reinforcement part are connected by mortar.

3. The fully furnished prefabricated large modular building according to claim 1, characterized in that: A skirting is provided between the elevated floor and the assembled wall for covering.

4. The fully furnished prefabricated large modular building according to claim 1, characterized in that: The joint sealing device is composed of an internal template, a lower sealing block, a positioning pin, a flexible material, an upper sealing block, and an external template; The internal template is L-shaped and is arranged inside the upper prefabricated large module and located inside the concrete pouring area, one end of the internal template is fixed to the top plate in the lower prefabricated large module, and the other end is fixed to the elevated floor in the upper prefabricated large module; The lower blocking block is fixed to the top of the internal template, and the positioning pin and the flexible material are attached to the top of the lower blocking block; The upper blocking block is fixed on the outer wall of the upper prefabricated large module and corresponds to the lower blocking block. The upper blocking block is provided with a groove at the position corresponding to the positioning pin. When the first steel bar portion and the second steel bar portion are misaligned and plugged, the upper blocking block and the lower blocking block can be plugged together at the same time, so that the positioning pin can be inserted into the groove, and the groove presses the flexible material, so that the upper blocking block and the lower blocking block are sealed, and the inner side of the concrete pouring area is blocked; The external formwork is arranged outside the concrete pouring area, and the external formwork is respectively connected to the outer side of the outer wall of the upper prefabricated large module and the outer side of the outer wall of the lower prefabricated large module to seal the outer side of the concrete pouring area.

5. A construction method for a fully furnished prefabricated large modular building, characterized in that: include: S1: Production of large concrete modules. Prepare the molds in the prefabrication yard according to the design requirements, including cleaning and inspection of the bottom mold, outer mold and various inner molds. Pre-embed the first steel bar part and the second steel bar part and the connector according to the design position to ensure that the position and length of the dislocated connecting steel bars of the upper prefabricated large module and the lower prefabricated large module meet the requirements. Accurately reserve pipeline holes and decoration connection interfaces to prepare for subsequent decoration construction. Pour concrete according to the mix ratio requirements and perform maintenance to ensure that the concrete reaches the designed strength; S2: Exterior finishing construction, including base treatment of the exterior wall, including cleaning, leveling and waterproofing construction, spraying of exterior wall finishing or installation of decorative surface layer according to design requirements, and protection of the finished exterior finishing to avoid damage during subsequent construction; S3: Internal decoration construction, first install the raised floor, carry out the leveling layer construction, install the adjustment bracket and keel system, and finally lay the surface layer board to complete the installation of the raised floor. Then for the prefabricated wall construction, first install the wall frame system, then arrange the internal pipelines of the wall, and finally install the wall board to complete the installation of the raised floor. For the installation of the ceiling, first set the primary and secondary keels, then complete the pipeline layout, and finally install the ceiling panel to complete the installation of the ceiling. S4: Install the joint blocking device, fix the internal formwork on the top plate in the lower prefabricated large module and the raised floor in the upper prefabricated large module, install the lower blocking block on the internal formwork, install the positioning pins and flexible materials on the lower blocking block, and fix the upper blocking block on the outer wall in the upper prefabricated large module; S5: Finished product protection and transportation: fully protect the assembled walls, raised floors, ceilings and other parts, use special transportation equipment for overall transportation, and reasonably set support points to avoid deformation during transportation; S6: On-site installation and connection, measurement and layout, determine the installation position of the module, use professional equipment to hoist it into place, adjust the module position, ensure that it is aligned up and down, align and plug the upper blocking block with the lower blocking block, and then check the insertion of the positioning pin and the compression of the flexible material; S7: Structural connection construction, check the fixation of internal formwork, support external formwork to form pouring space, pour high-performance concrete and vibrate to compact it, and maintain the concrete to the designed strength; S8: Finishing repair and finished product acceptance, remove the external formwork, repair the exterior finishing of the exterior wall, check the integrity of the interior decoration, clean up the construction site and protect the finished product.

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