Prefabricated assembled concrete partition wall and construction method thereof

Abstract

The present invention discloses a prefabricated assembled concrete middle partition wall and a construction method thereof, which is installed in a rectangular frame surrounded by a top structure, two original structural columns and an original ground, and includes a prefabricated concrete middle partition wall and an anchoring clamping structure arranged on both sides of the prefabricated concrete middle partition wall and between two original structural columns. A prefabricated assembled concrete middle partition wall and a construction method thereof, the present invention relates to the field of construction technology. The prefabricated assembled concrete middle partition wall and the construction method thereof, the prefabricated middle wall panel is produced in a standardized manner in a prefabrication plant, the materials and energy consumption can be centrally controlled in the prefabrication plant, the production efficiency is greatly improved, and the quality, time and cost can be controlled at the same time, the prefabricated middle wall panel is easy to install and operate, and the problem of inconvenient operation of large machinery in a narrow space can be solved, a large amount of manpower and material resources consumed during installation can be reduced, the construction speed is fast, and the work efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction, and in particular to a prefabricated assembled concrete partition wall and a construction method thereof. Background Art

[0002] At present, in construction, sometimes it is necessary to divide a space in an existing building into two or more rooms, or in some closed spaces, partitions need to be made later. At this time, wall panels are used as partition building materials. In the current construction of room partitions, bricks, blocks, concrete, etc. are mostly used for on-site masonry and pouring; however, traditional partitions require a lot of manpower during construction, with low masonry efficiency and difficult to ensure quality, and it is difficult to meet the requirements of green buildings for energy saving, material saving and environmental protection.

[0003] At the same time, the design width of the middle partition wall is often narrow, and the middle partition wall is limited by the narrow working space, so it is not suitable to use large machinery. At the same time, some spaces will be continuously affected by horizontal vibration, and the joints between the boards may crack under long-term vibration. Therefore, in order to ensure the quality of partition wall construction, facilitate construction, and have certain seismic resistance, a prefabricated and assembled middle partition wall panel equivalent to a cast-in-place structure is considered. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a prefabricated assembled concrete partition wall and a construction method thereof. The partition wall has a simple structure, a simple and easy construction process, high construction efficiency, and greatly saves manpower and material resources. At the same time, while meeting the design accuracy requirements of the components, the partition wall is also suitable for operation in small underground working spaces and has certain seismic resistance.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a prefabricated assembled concrete middle partition wall and a construction method thereof, which is installed in a rectangular frame surrounded by a top structure, two original structural columns and an original ground, and includes a prefabricated concrete middle partition wall and an anchoring and clamping structure arranged on both sides of the prefabricated concrete middle partition wall and between the two original structural columns. The prefabricated concrete middle partition wall is composed of a plurality of standard middle partition wall panels and a bottom middle partition wall panel spliced ​​and clamped, and the tops of the plurality of standard middle partition wall panels and the tops of the bottom middle partition wall panels are both provided with grooves, and the bottoms of the plurality of standard middle partition wall panels are fixedly installed with tenons, and the splicing between two upper and lower adjacent standard middle partition wall panels and between the standard middle partition wall panel and the bottom middle partition wall panel is a mortise and tenon structure formed by the concave-convex adaptation of the groove and the tenon at the splicing position.

[0008] The anchoring and clamping structure comprises a U-shaped channel, embedded welding parts respectively embedded in a plurality of standard middle partition wall panels and two ends of a bottom middle partition wall panel in a transverse direction, and a fastening device for fixing the U-shaped channel on the original structural column.

[0009] After the precast concrete middle partition wall is installed in a fixed position, the embedded welding parts are stably welded to the U-shaped groove, which plays a temporary clamping, positioning and restraining role. The gap between the bottom middle partition wall board and the original ground and the gap between the top of the topmost standard middle partition wall board and the bottom of the top structure are sealed with grouting material. Then the L-shaped steel formwork is fixedly installed and sealed at the anchor clamping structure between the two original structural columns and the precast concrete middle partition wall, and the inside of the L-shaped steel formwork is grouted to prevent corrosion of iron parts.

[0010] Preferably, the L-shaped steel mold is made of stainless steel.

[0011] Preferably, the top of the standard middle partition wall board and the bottom middle partition wall board and the outer side of the groove are both adhered with sealing sponges by adhesive.

[0012] Preferably, the concave-convex fit of the groove and the tenon forms a mortise and tenon structure, and the gap between two upper and lower adjacent standard middle partition wall boards and between the standard middle partition wall boards and the bottom middle partition wall boards is sealed with grouting material, so that the concave-convex fit of the groove and the tenon forms a mortise and tenon structure, and the two upper and lower adjacent standard middle partition wall boards and between the standard middle partition wall boards and the bottom middle partition wall boards are squeezed and locked to achieve an overall sealed connection.

[0013] Preferably, the fastening device is one of an expansion bolt or a chemical anchor bolt.

[0014] Preferably, the U-shaped groove is a discontinuous short groove or a continuous whole groove. When the U-shaped groove is a discontinuous short groove, the short grooves are fixed at intervals on the front and rear sides of two original structural columns, and when the U-shaped groove is a continuous whole groove, the short grooves are installed on the rear sides of the original structural columns on both sides.

[0015] Preferably, the embedded welding parts are made of iron.

[0016] The present invention also provides a construction method for a prefabricated assembled concrete partition wall, which specifically comprises the following steps:

[0017] S1. Produce standard middle partition panels and bottom middle partition panels in prefabrication factories and maintain them;

[0018] S2. First, U-shaped grooves are installed on the two original structural columns respectively. The installed U-shaped grooves are either discontinuous short grooves or continuous whole grooves. When the U-shaped grooves are discontinuous short grooves, the short grooves are fixed at intervals on the rear sides of the two original structural columns. When the U-shaped grooves are continuous whole grooves, the whole grooves are first installed on the rear sides of the original structural columns on both sides, and then the short grooves are installed on the front sides of the original structural columns on both sides.

[0019] S3, transporting the standard middle partition wall panels and the bottom middle partition wall panels produced in step S1 to the site, using a forklift for transportation, and installing them manually with the assistance of the forklift;

[0020] S4. The rear U-shaped grooves have been installed on the columns on both sides. After the first standard middle partition board is directly installed to the fixed position by a forklift, the U-shaped short groove is installed on the front side, and the embedded welding parts on both sides of the standard middle partition board are welded firmly to the front and rear U-shaped grooves to play a temporary anchoring, clamping, positioning and restraining role;

[0021] S5. Then install the second standard middle partition wallboard in sequence. The upper and lower parts of the two standard middle partition wallboards are spliced ​​together to form a mortise and tenon structure through the concave and convex fitting of the grooves and tenons at the splicing position. After the gaps between each standard middle partition wallboard are installed, the gaps are sealed with grouting material. The outer side of the caulking is sealed with a sealing sponge to make the mortise and tenon structure more solid, so that the upper and lower wallboard components form a complete and tight structure.

[0022] S6. After installing the second standard middle partition board, install the front U-shaped channel. Finally, weld the front and rear channels firmly with the embedded welding parts. Install the next panels in sequence. The bottom of the bottom middle partition board is a flush structure or the bottom middle partition board can also be a standard middle partition board. The gap between the bottom middle partition board and the original ground is sealed with grouting material.

[0023] S7. Inject expansion grouting material into the groove at the top of the top standard partition wall in advance, and after installation, it will be effectively connected and sealed with the top structure;

[0024] S8. Use stainless steel L-shaped steel to seal the anchoring structure between the two original structural columns and the precast concrete partition wall, and use internal grouting to prevent corrosion of iron parts.

[0025] (III) Beneficial effects

[0026] The present invention provides a prefabricated assembled concrete partition wall and a construction method thereof. Compared with the prior art, it has the following beneficial effects:

[0027] (1) The prefabricated assembled concrete partition wall and its construction method. The prefabricated wall panels are produced in a standardized manner in a prefabrication plant, and materials and energy consumption can be centrally controlled in the prefabrication plant, greatly improving production efficiency and achieving simultaneous control of quality, time and cost.

[0028] (2) The prefabricated assembled concrete partition wall and its construction method. The prefabricated wall panel is easy to install and can solve the problem of inconvenient operation of large machinery in a small space, reduce the large amount of manpower and material resources consumed during installation, increase the construction speed, and improve work efficiency.

[0029] (3) The prefabricated assembled concrete middle partition wall and its construction method have good seismic resistance for applications that are continuously affected by vibration, but the joints between the panels may crack under long-term vibration. The mortise and tenon structure is formed by matching the concave and convex joints of the upper and lower joints of the partition panels, and closed-cell sponge + grouting is used in the caulking. The connection strength of two adjacent lightweight partition panels is good when connected, so that the upper and lower wall panel components form a complete and tight structure, and the anti-cracking performance of the panels is achieved.

[0030] (4) The prefabricated assembled concrete middle partition wall and its construction method can anchor and clamp the prefabricated middle wall panels through the anchoring and clamping structures at both ends, and the stainless steel L-shaped steel edge sealing and other rigid connections with the columns. The internal grouting realizes the integral connection between the middle wall panels and the columns, thereby increasing the safety and seismic resistance of the prefabricated middle wall panels and reducing the shear and seismic resistance of the panels. Its performance is equivalent to that of the cast-in-place system.

[0031] (5) The prefabricated assembled concrete partition wall and its construction method use anchoring clips on the left and right sides of the partition wall to connect the wall and the left and right columns into an integrated structure, which is simple to install, fast in construction speed, and improves work efficiency; the upper and lower plates are connected into an integrated structure through mortise and tenon structures and grouting treatment, which increases the stability of the prefabricated partition wall panels and can be used for rapid isolation. The panels are connected into a whole, with strong impact resistance, and are anchored by steel structure methods. The wall strength is high, and the overall earthquake resistance and shear resistance are many times higher than those of ordinary masonry walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is the general assembly diagram of the middle partition wall of the present invention without the installation of L-shaped steel mold edge sealing;

[0033] Figure 2 It is a cross-sectional view and an axonometric view of the bottom partition wall board of the present invention;

[0034] Figure 3 The cross-sectional view and axonometric view of the standard partition wall board of the present invention;

[0035] Figure 4 This is a schematic diagram of the installation of the discontinuous short grooves firstly installed in the first embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the installation of the embodiment 2 of the present invention, in which a continuous whole groove is installed first;

[0037] Figure 6 It is a schematic diagram of the splicing between the upper and lower adjacent standard partition wall panels of the present invention;

[0038] Figure 7 It is a side view of the splicing between the upper and lower adjacent standard middle partition wall panels of the present invention;

[0039] Figure 8 This is a schematic diagram of the partition wall installation of the present invention;

[0040] Fig. 9 A side view of the partition wall of the present invention after installation;

[0041] Fig.10 It is a schematic diagram of the partition wall installation process of the present invention;

[0042] Fig.11 This is a front view of the installation of the L-shaped steel mold edge sealing anchor clamping structure of the present invention;

[0043] Fig.12 It is a top view of the installation of the L-shaped steel mold edge sealing anchor clamping structure of the present invention.

[0044] In the figure, 1-top structure; 2-original structural columns; 3-prefabricated middle partition wall panels; 31-standard middle partition wall panels; 32-bottom middle partition wall panels; 311-grooves; 312-tenons; 4-original ground; 5-U-shaped channels; 51-short channels; 52-whole channels; 6-embedded welding parts; 7-fastening devices; 8-L-shaped steel molds; 9-sealing sponges. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figure 1-12 The embodiment of the present invention provides four technical solutions: a prefabricated assembled concrete partition wall and a construction method thereof, specifically including the following embodiments:

[0047] Embodiment 1 (the first gravity installation method)

[0048] A prefabricated assembled concrete middle partition wall is installed in a rectangular frame surrounded by a top structure 1, two original structure columns 2 and an original ground 4. It includes a prefabricated concrete middle partition wall 3 and an anchoring and clamping structure arranged on both sides of the prefabricated concrete middle partition wall 3 and between the two original structure columns 2. The prefabricated concrete middle partition wall 3 is composed of a plurality of standard middle partition wall panels 31 and a bottom middle partition wall panel 32 spliced ​​and clamped together, and the tops of the plurality of standard middle partition wall panels 31 and the tops of the bottom middle partition wall panels 32 are both provided with grooves 311, and the bottoms of the plurality of standard middle partition wall panels 31 are all fixedly installed with tenons 312. The splicing between two upper and lower adjacent standard middle partition wall panels 31 and between the standard middle partition wall panel 31 and the bottom middle partition wall panel 32 is a mortise and tenon structure formed by the concave-convex adaptation of the groove 311 and the tenon 312 at the splicing position.

[0049] The anchoring and clamping structure includes a U-shaped channel 5, embedded welding parts 6 respectively embedded in a plurality of standard middle partition wall panels 31 and both ends of a bottom middle partition wall panel 32 in the transverse direction, and a fastening device 7 for fixing the U-shaped channel 5 on the original structural column 2.

[0050] After the precast concrete partition wall 3 is installed in a fixed position, the embedded welding parts 6 are stably welded to the U-shaped groove 5, which plays a temporary clamping, positioning and restraining role. The gap between the bottom partition wall panel 32 and the original ground 4 and the gap between the top of the top standard partition wall panel 31 and the bottom of the top structure 1 are sealed with grouting material. Then the L-shaped steel mold 8 is fixedly installed and sealed at the anchor clamping structure between the two original structural columns 2 and the precast concrete partition wall 3, and the inside of the L-shaped steel mold 8 is grouted for iron corrosion protection.

[0051] In the embodiment of the present invention, the L-shaped steel mold 8 is made of stainless steel.

[0052] In the embodiment of the present invention, the top of the standard middle partition wall board 31 and the bottom middle partition wall board 32 and the outer side of the groove 311 are both adhered with a sealing sponge 9 by an adhesive.

[0053] In the embodiment of the present invention, the concave-convex fit of the groove 311 and the tenon 312 forms a mortise and tenon structure, and the gap between two upper and lower adjacent standard middle partition wall panels 31 and the gap between the standard middle partition wall panels 31 and the bottom middle partition wall panel 32 is sealed with grouting material, so that the concave-convex fit of the groove 311 and the tenon 312 forms a mortise and tenon structure, and the gap between two upper and lower adjacent standard middle partition wall panels 31 and the gap between the standard middle partition wall panels 31 and the bottom middle partition wall panel 32 is squeezed and locked to achieve an overall sealed connection.

[0054] In the embodiment of the present invention, the fastening device 7 is an expansion bolt.

[0055] In the embodiment of the present invention, the U-shaped groove 5 is a discontinuous short groove 51. When the U-shaped groove 5 is a discontinuous short groove 51, the short groove 51 is fixed at intervals on the front and rear sides of the two original structural columns 2. Figure 4 .

[0056] In the embodiment of the present invention, the embedded welding part 6 is made of iron.

[0057] The embodiment of the present invention further provides a prefabricated assembled concrete partition wall and a construction method thereof, which specifically comprises the following steps:

[0058] S1, producing and curing the standard middle partition wall panels 51 and the bottom middle partition wall panels 52 in a prefabricated factory;

[0059] S2, first install U-shaped grooves 5 on the two original structural columns 2 respectively, the U-shaped grooves 5 installed first are discontinuous short grooves 51, when the U-shaped grooves 5 are discontinuous short grooves 51, the short grooves 51 are fixed at intervals on the rear sides of the two original structural columns 2;

[0060] S3, transporting the standard middle partition wall panels 31 and the bottom middle partition wall panels 32 produced in step S1 to the site, using a forklift for transportation, and installing them with the assistance of manual labor and the forklift;

[0061] S4, the rear U-shaped groove 5 has been installed on the pillars on both sides, and the first bottom middle partition wall panel 32 is directly installed to the fixed position by a forklift, and then the U-shaped short groove 5 is installed on the front side, and the embedded welding parts 6 embedded on both sides of the bottom middle partition wall panel 32 are firmly welded to the front and rear U-shaped grooves 5, which plays a role of temporary anchoring, clamping, positioning and restraining;

[0062] S5, then sequentially install the first standard middle partition wallboard 31 on top, the upper standard middle partition wallboard 31 and the lower middle partition wallboard 32 are spliced ​​up and down to form a mortise and tenon structure through the concave-convex adaptation of the groove 311 and the tenon 312 at the splicing position, and the gap between adjacent middle partition wallboards is sealed by grouting material after installation, and the outer side of the caulking is sealed with a sealing sponge 9 to make the mortise and tenon structure more solid, so that the upper and lower wallboard components form a complete and tight structure;

[0063] S6, after installing the first standard middle partition wall panel 31, install the front U-shaped channel 5, and finally weld the front and rear channels to the embedded welding parts 6 firmly, and install the next panels in sequence until the top standard middle partition wall panel 31 is installed;

[0064] S7. After the topmost standard middle partition wall panel 31 is installed, the top formwork is supported and the upper gap is closed by grouting to achieve effective connection and sealing with the original beam 1; the bottom of the bottom middle partition wall panel 32 is a flush structure, and the gap between the bottom middle partition wall panel 32 and the original ground 4 is sealed with grouting material.

[0065] S8. The anchoring clamping structure between the two original structural columns 2 and the precast concrete partition wall 3 is sealed with a stainless steel L-shaped steel mold 8, and the internal grouting is performed to prevent the iron parts from corrosion.

[0066] Embodiment 2 (the first gravity installation method)

[0067] A prefabricated assembled concrete middle partition wall is installed in a rectangular frame surrounded by a top structure 1, two original structure columns 2 and an original ground 4. It includes a prefabricated concrete middle partition wall 3 and an anchoring and clamping structure arranged on both sides of the prefabricated concrete middle partition wall 3 and between the two original structure columns 2. The prefabricated concrete middle partition wall 3 is composed of a plurality of standard middle partition wall panels 31 and a bottom middle partition wall panel 32 spliced ​​and clamped together, and the tops of the plurality of standard middle partition wall panels 31 and the tops of the bottom middle partition wall panels 32 are both provided with grooves 311, and the bottoms of the plurality of standard middle partition wall panels 31 are all fixedly installed with tenons 312. The splicing between two upper and lower adjacent standard middle partition wall panels 31 and between the standard middle partition wall panel 31 and the bottom middle partition wall panel 32 is a mortise and tenon structure formed by the concave-convex adaptation of the groove 311 and the tenon 312 at the splicing position.

[0068] The anchoring and clamping structure includes a U-shaped channel 5, embedded welding parts 6 respectively embedded in a plurality of standard middle partition wall panels 31 and both ends of a bottom middle partition wall panel 32 in the transverse direction, and a fastening device 7 for fixing the U-shaped channel 5 on the original structural column 2.

[0069] After the precast concrete partition wall 3 is installed in a fixed position, the embedded welding parts 6 are stably welded to the U-shaped groove 5, which plays a temporary clamping, positioning and restraining role. The gap between the bottom partition wall panel 32 and the original ground 4 and the gap between the top of the top standard partition wall panel 31 and the bottom of the top structure 1 are sealed with grouting material. Then the L-shaped steel mold 8 is fixedly installed and sealed at the anchor clamping structure between the two original structural columns 2 and the precast concrete partition wall 3, and the inside of the L-shaped steel mold 8 is grouted for iron corrosion protection.

[0070] In the embodiment of the present invention, the L-shaped steel mold 8 is made of stainless steel.

[0071] In the embodiment of the present invention, the top of the standard middle partition wall board 31 and the bottom middle partition wall board 32 and the outer side of the groove 311 are both adhered with a sealing sponge 9 by an adhesive.

[0072] In the embodiment of the present invention, the concave-convex fit of the groove 311 and the tenon 312 forms a mortise and tenon structure, and the gap between two upper and lower adjacent standard middle partition wall panels 31 and the gap between the standard middle partition wall panels 31 and the bottom middle partition wall panel 32 is sealed with grouting material, so that the concave-convex fit of the groove 311 and the tenon 312 forms a mortise and tenon structure, and the gap between two upper and lower adjacent standard middle partition wall panels 31 and the gap between the standard middle partition wall panels 31 and the bottom middle partition wall panel 32 is squeezed and locked to achieve an overall sealed connection.

[0073] In the embodiment of the present invention, the fastening device 7 is a chemical anchor.

[0074] In the embodiment of the present invention, the U-shaped groove 5 installed first is a continuous whole groove 52. When the U-shaped groove 5 installed first is a continuous whole groove 52, the short groove 51 is installed after the wall panel is installed, and is located in front of the original structural columns 2 on both sides.

[0075] In the embodiment of the present invention, the embedded welding part 6 is made of iron.

[0076] The embodiment of the present invention further provides a prefabricated assembled concrete partition wall and a construction method thereof, which specifically comprises the following steps:

[0077] S1, producing and curing the standard middle partition wall panels 51 and the bottom middle partition wall panels 52 in a prefabricated factory;

[0078] S2, first install U-shaped grooves 5 on the two original structural columns 2 respectively. When the first installed U-shaped groove 5 is a continuous whole groove 52, first install the whole groove 52 on the rear side of the original structural columns 2 on both sides, and then install the short grooves 51 on the front side of the original structural columns 2 on both sides;

[0079] S3, transporting the standard middle partition wall panels 31 and the bottom middle partition wall panels 32 produced in step S1 to the site, using a forklift for transportation, and installing them with the assistance of manual labor and the forklift;

[0080] S4. After the entire rear U-shaped channel 52 has been installed on the pillars on both sides, the first bottom middle partition wall panel 32 is directly installed to a fixed position by a forklift, and then the short channel U-shaped channel 51 is installed on the front side, and the embedded welding parts 6 embedded on both sides of the bottom middle partition wall panel 32 are firmly welded to the front and rear U-shaped channels 5, which plays a role of temporary anchoring, clamping, positioning and restraining;

[0081] S5, then sequentially install the first standard middle partition wallboard 31 on top, the upper standard middle partition wallboard 31 and the lower middle partition wallboard 32 are spliced ​​up and down to form a mortise and tenon structure through the concave-convex adaptation of the groove 311 and the tenon 312 at the splicing position, and the gap between adjacent middle partition wallboards is sealed by grouting material after installation, and the outer side of the caulking is sealed with a sealing sponge 9 to make the mortise and tenon structure more solid, so that the upper and lower wallboard components form a complete and tight structure;

[0082] S6. After installing the first standard middle partition wall panel 31, install the front discontinuous U-shaped groove 5, and finally weld the front and rear grooves to the embedded welding parts 6 firmly, and install the next panels in sequence until the top standard middle partition wall panel 31 is installed;

[0083] S7. After the topmost standard middle partition wall panel 31 is installed, the top formwork is supported and the upper gap is closed by grouting to achieve effective connection and sealing with the original beam 1; the bottom of the bottom middle partition wall panel 32 is a flush structure, and the gap between the bottom middle partition wall panel 32 and the original ground 4 is sealed with grouting material.

[0084] S8. The anchoring clamping structure between the two original structural columns 2 and the precast concrete partition wall 3 is sealed with a stainless steel L-shaped steel mold 8, and the internal grouting is performed to prevent the iron parts from corrosion.

[0085] Embodiment 3 (Counter-gravity installation method)

[0086] A prefabricated assembled concrete middle partition wall is installed in a rectangular frame surrounded by a top structure 1, two original structure columns 2 and an original ground 4. It includes a prefabricated concrete middle partition wall 3 and an anchoring and clamping structure arranged on both sides of the prefabricated concrete middle partition wall 3 and between the two original structure columns 2. The prefabricated concrete middle partition wall 3 is composed of a number of standard middle partition wall panels 31 spliced ​​and clamped, and a groove 311 is opened on the top of the several standard middle partition wall panels 31, and a tenon 312 is fixedly installed on the bottom of the several standard middle partition wall panels 31. The splicing between two upper and lower adjacent standard middle partition wall panels 31 and between the standard middle partition wall panel 31 and the bottom middle partition wall panel 32 is a mortise and tenon structure formed by the concave-convex adaptation of the groove 311 and the tenon 312 at the splicing position.

[0087] The anchoring and clamping structure includes a U-shaped channel 5 , embedded welding parts 6 respectively embedded at both ends of a plurality of standard middle partition wall panels 31 , and a fastening device 7 for fixing the U-shaped channel 5 on the original structural column 2 .

[0088] After the precast concrete partition wall 3 is installed in a fixed position, the embedded welding parts 6 are stably welded to the U-shaped groove 5, which plays a temporary clamping, positioning and restraining role. The gap between the bottom partition wall panel 31 and the original ground 4 and the gap between the top of the top standard partition wall panel 31 and the bottom of the top structure 1 are sealed with grouting material. Then the L-shaped steel mold 8 is fixedly installed and sealed at the anchor clamping structure between the two original structural columns 2 and the precast concrete partition wall 3, and the inside of the L-shaped steel mold 8 is grouted for iron corrosion protection.

[0089] In the embodiment of the present invention, the L-shaped steel mold 8 is made of stainless steel.

[0090] In the embodiment of the present invention, a sealing sponge 9 is adhered to the top of the standard middle partition wall board 31 and the outer side of the groove 311 by an adhesive.

[0091] In the embodiment of the present invention, the concave-convex fit of the groove 311 and the convex tenon 312 forms a mortise and tenon structure, and the gap between the two upper and lower adjacent standard middle partition wall panels 31 is sealed with grouting material, so that the concave-convex fit of the groove 311 and the convex tenon 312 forms a mortise and tenon structure, and the two upper and lower adjacent standard middle partition wall panels 31 are squeezed and locked to achieve an integral sealed connection.

[0092] In the embodiment of the present invention, the fastening device 7 is an expansion bolt.

[0093] In the embodiment of the present invention, the U-shaped channel 5 is a discontinuous short channel 51 . When the U-shaped channel 5 is a discontinuous short channel 51 , the short channels 51 are fixed at intervals on the front and rear sides of two original structural columns 2 .

[0094] In the embodiment of the present invention, the embedded welding part 6 is made of iron.

[0095] The embodiment of the present invention further provides a prefabricated assembled concrete partition wall and a construction method thereof, which specifically comprises the following steps:

[0096] S1. Produce and maintain standard partition panels 51 in prefabrication plants;

[0097] S2, first install U-shaped grooves 5 on the two original structural columns 2 respectively, the installed U-shaped grooves 5 are discontinuous short grooves 51, and the short grooves 51 are fixed at intervals on the rear sides of the two original structural columns 2;

[0098] S3, transporting the standard partition wall panels 31 produced in step S1 to the site, using a forklift for transportation, and installing them manually with the assistance of the forklift;

[0099] S4. The rear side channel 51 has been installed on the original structural columns 2 on both sides. The standard middle partition wall panel 31 is lifted backward and clamped on the installed channel 51 and the upper top structure 1 by a forklift or jack. The expansion grouting material is injected into the groove 311 of the standard middle partition wall panel 31 in advance. The two sides are sealed with sealing sponges 9. After lifting to the top and tightening, it is effectively connected and sealed with the top structure 1. Then install the discontinuous short channel 51 on the front side, anchor and clamp the top standard middle partition wall panel 31, and at the same time, weld the front and rear embedded welding parts 6 in the standard middle partition wall panel 31 to the front and rear U-shaped channels 5 to play a temporary anchoring, clamping, positioning and restraining role;

[0100] S5, then install the lower standard partition board 31 in sequence, the convex tenon 312 at the lower end of the top standard partition board 31 and the concave-convex fit of the groove 311 at the upper end of the lower standard partition board 31 form a mortise and tenon structure, the outer side of the gap between them is sealed with a sealed sponge 9, and the inner gap is poured with expansion grouting material to improve the mortise and tenon connection strength, ensure the overall stability of the wall, and also make the upper and lower wallboard components tightly combined into a complete structure;

[0101] S6, after the wall panels are installed, install the front short groove 51, and finally weld the front and rear short grooves 51 to the embedded welding parts 6 firmly, and after each wall panel is welded and clamped firmly, install the lower end wall panel in sequence;

[0102] S7, in this method of counter gravity, the lower end of the middle partition wallboard 32 at the bottom can be a flush structure, or only a standard wallboard 31 can be used, and the lower end has a tenon 312; after the bottom wallboard is installed and anchored through the U-shaped groove and the embedded welding parts, a gap is left at the lower end, and finally the formwork is supported at the bottom, and the gap is sealed with grouting material;

[0103] S8. The anchoring and clamping structures on the original structural columns 2 on both sides and the edge gaps on both sides are sealed with stainless steel L-shaped steel molds 8, and expansion grouting material is injected inside to prevent corrosion of the iron parts of the anchoring and clamping structure and reliably connect the middle partition wall panel with the original structural columns 2 built in advance. The reinforced concrete grouting connection is equivalent to a cast-in-place structure.

[0104] This counter-gravity method can achieve a tight combination of the middle wall panel and the top structure 1, achieve a seamless connection, be easy to operate, achieve good sealing performance, and achieve the sealing performance required by the space.

[0105] From the above description of the implementation scheme, it can be seen that the invention of a prefabricated assembled concrete partition wall and its construction method has the advantages of simple and easy construction process, high construction efficiency, and great savings in manpower and material resources. At the same time, while meeting the design accuracy requirements of the components, it is also suitable for operation in a narrow working space, and the prefabricated components used in the invention are all standardized in the prefabrication plant, which greatly improves production efficiency, and the component quality, time and material costs are controllable at the same time; the construction environment is good, the site pollution is small, the noise is small, etc. By anchoring the clamping device and the original structural column 2 through the L-shaped steel mold 8 edge sealing grouting, it has the integrity of the structure, ensuring the structural stability and safety of the subway station slat partition wall.

[0106] The invention discloses a prefabricated assembled concrete middle partition wall and a construction method thereof, which are suitable for narrow underground structures, such as the construction of middle wall panels in subway stations and middle wall panels in underground garages that were not originally designed but are to be closed later, and are also suitable for the rapid division of rooms in existing buildings. The prefabricated assembled concrete middle partition wall has a mortise and tenon structure formed by the concave and convex adaptation of the upper and lower joint positions of the upper and lower adjacent partition panels, and at the same time, both sides of the gap are sealed with a sealing sponge and expanded grouting material in the caulking to achieve a sealed overall sealed connection; at the same time, the anchoring and clamping structures at both ends can anchor and clamp the prefabricated middle wall panels, the stainless steel L-shaped steel mold 8 edge sealing and other rigid connections with the columns, and the internal grouting realizes the integral connection between the middle wall panels and the columns, and can also realize the anti-corrosion of the iron parts of the anchoring and clamping structure, increase the safety and seismic resistance of the prefabricated middle wall panels, and realize the sealing performance of the wall panels. Through the grouting treatment of the gap, isolation properties such as air blocking, waterproofing, and moisture-proofing can be achieved, such as the construction of rapid isolation space in square cabin hospitals.

[0107] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0108] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0109] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated assembled concrete partition wall, which is installed in a rectangular frame surrounded by a top structure (1), two original structural columns (2) and an original ground (4), characterized in that: The invention comprises a precast concrete middle partition wall (3) and an anchoring and clamping structure arranged on both sides of the precast concrete middle partition wall (3) and between two original structural columns (2); the precast concrete middle partition wall (3) is composed of a plurality of standard middle partition wall panels (31) and a bottom middle partition wall panel (32) spliced ​​and clamped together; the tops of the plurality of standard middle partition wall panels (31) and the tops of the bottom middle partition wall panels (32) are both provided with grooves (311); the bottoms of the plurality of standard middle partition wall panels (31) are both fixedly installed with tenons (312); the splicing between two upper and lower adjacent standard middle partition wall panels (31) and between the standard middle partition wall panel (31) and the bottom middle partition wall panel (32) is a mortise and tenon structure formed by the concave-convex matching of the grooves (311) and the tenons (312) at the splicing positions; The anchoring and clamping structure comprises a U-shaped channel (5), embedded welding parts (6) respectively embedded in a plurality of standard middle partition wall panels (31) and two ends of a bottom middle partition wall panel (32) in the transverse direction, and a fastening device (7) for fixing the U-shaped channel (5) on the original structural column (2); After the precast concrete middle partition wall (3) is installed in a fixed position, the embedded welding part (6) is stably welded to the U-shaped groove (5), and the gap between the bottom middle partition wall board (32) and the original ground (4) and the gap between the top of the uppermost standard middle partition wall board (31) and the bottom of the top structure (1) are sealed with grouting material, and then the L-shaped steel mold (8) is fixedly installed and sealed at the anchor clamping structure between the two original structural columns (2) and the precast concrete middle partition wall (3), and the inside of the L-shaped steel mold (8) is grouted to prevent iron parts from corrosion.

2. The prefabricated assembled concrete partition wall according to claim 1, characterized in that: The L-shaped steel mold (8) is made of stainless steel.

3. The prefabricated assembled concrete partition wall according to claim 1, characterized in that: The top of the standard middle partition wall board (31) and the bottom middle partition wall board (32) and the outer side of the groove (311) are both adhered with sealing sponges (9) by adhesive.

4. The prefabricated assembled concrete partition wall according to claim 1, characterized in that: The concave-convex fitting of the groove (311) and the convex tenon (312) forms a mortise and tenon structure, and the gap between two upper and lower adjacent standard middle partition wall panels (31) and between the standard middle partition wall panels (31) and the bottom middle partition wall panels (32) is sealed with grouting material, so that the concave-convex fitting of the groove (311) and the convex tenon (312) forms a mortise and tenon structure, and the gap between two upper and lower adjacent standard middle partition wall panels (31) and between the standard middle partition wall panels (31) and the bottom middle partition wall panels (32) is squeezed and locked to achieve an integral sealed connection.

5. The prefabricated assembled concrete partition wall according to claim 1, characterized in that: The fastening device (7) is one of an expansion bolt and a chemical anchor bolt.

6. The prefabricated assembled concrete partition wall according to claim 1, characterized in that: The U-shaped channel (5) is a discontinuous short channel (51) or a continuous whole channel (52). When the U-shaped channel (5) is a discontinuous short channel (51), the short channels (51) are fixed at intervals on the front and rear sides of two original structural columns (2); and when the U-shaped channel (5) is a continuous whole channel (52), the short channels (51) are installed on the front sides of the original structural columns (2) on both sides.

7. The prefabricated assembled concrete partition wall according to claim 1, characterized in that: The embedded welding part (6) is made of iron.

8. A construction method for implementing the prefabricated assembled concrete partition wall according to any one of claims 1 to 7, characterized in that: The specific steps include: S1, producing standard middle partition wall panels (31) and bottom middle partition wall panels (32) in a prefabrication factory and maintaining them; S2. First, U-shaped grooves (5) are installed on the two original structural columns (2) respectively. The installed U-shaped grooves (5) are either discontinuous short grooves (51) or continuous whole grooves (52). When the U-shaped grooves (5) are discontinuous short grooves (51), the short grooves (51) are fixed at intervals on the rear sides of the two original structural columns (2). When the U-shaped grooves (5) are continuous whole grooves (52), the whole grooves (52) are first installed on the rear sides of the original structural columns (2) on both sides, and then the short grooves (51) are installed on the front sides of the original structural columns (2) on both sides. S3, transporting the standard middle partition wall panels (31) and the bottom middle partition wall panels (32) produced in step S1 to the site, using a forklift for transportation, and installing them with the assistance of manual labor and the forklift; S4. After the rear U-shaped groove (5) has been installed on the pillars on both sides, the first standard middle partition wall panel (31) is directly installed to a fixed position by a forklift, and then the U-shaped groove (5) is installed on the front side, and the embedded welding parts (6) embedded on both sides of the standard middle partition wall panel (31) are firmly welded to the front and rear U-shaped grooves (5); S5, then sequentially installing the second standard middle partition wallboard (31), the upper and lower parts of the two standard middle partition wallboards (31) are spliced ​​together to form a mortise and tenon structure through the concave and convex fit of the groove (311) and the convex tenon (312) at the splicing position, the gap between each standard middle partition wallboard (31) is sealed with grouting material after installation, and the outer side of the caulking is sealed with a sealing sponge (9), so that the mortise and tenon structure is more solid, so that the upper and lower wallboard components form a complete and tight structure; S6. After installing the second standard middle partition wall panel (31), install the front U-shaped channel (5). Finally, weld the front and rear channels firmly to the embedded welding parts (6). Install the next panels in sequence. The bottom of the middle partition wall panel (32) at the bottom is a flush structure. The gap between the middle partition wall panel (32) at the bottom and the original ground (4) is sealed with grouting material. S7. Inject the expansion grouting material into the groove (311) at the top of the top standard middle partition wallboard (31) in advance, and after installation, effectively connect and seal with the top structure (1); S8. The anchoring clamping structure between the two original structural columns (2) and the precast concrete partition wall (3) is sealed with a stainless steel L-shaped steel mold (8), and the interior is grouted to prevent corrosion of the iron parts.

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