A method and structure for active control of cracks in installation of building light inner partition board

Abstract

The application provides a building light inner partition wall strip plate installation crack active control method, which comprises the following steps: according to the wall and column axis lofting, an installation control line of ALC strip plate installation offset is drawn; U-shaped steel plate clamps are installed on the structural wall and column according to the ALC strip plate installation control line, and are fixed on the wall / column through anchor bolts; L-shaped pipe clamps are used to fix the top of the strip plate, and the anchor bolts are used to fix the floor / beam; the inner partition wall ALC strip plate is installed by using a vertical installation method, and the steel pin is used for reinforcing treatment at the corner L-shaped node and T-shaped wall node; after the wall plate is installed, fine stone concrete is used to fill the bottom joint of the wall plate, jointing mortar is used to fill the vertical joints between the adjacent ALC strip plates, the slurry is filled and smoothed at the upper joint gap, and the alkali-resistant glass fiber mesh is used for bonding and anti-cracking treatment. The method and structure effectively prevent the position loosening of the partition wall plate in the later use process, avoid the problems such as the sinking of the plate and the reflection cracks on the surface.

Description

Technical Field

[0001] This invention relates to the field of building engineering, and in particular to a method and structure for actively controlling cracks during the installation of lightweight interior partition wall panels. Background Technology

[0002] In recent years, with the rapid development of the social economy and the ever-changing construction industry, some new materials and technologies have emerged. Autoclaved aerated concrete (ALC) panels have been used to replace traditional autoclaved aerated concrete blocks in the interior partition walls of civil buildings and general industrial buildings. This has advantages such as low structural weight, high installation efficiency, no need for plastering, and energy-saving and environmentally friendly materials, and has broad application prospects.

[0003] However, after the panels are installed, there are a lot of joints, including the joints between the top and bottom and the floor slab / beam, the joints between the sides and the shear wall / column, and the joints between the ALC panels. In later use, the partition panels are prone to loosening, sinking, and reflective cracks on the surface, which affects the performance. Summary of the Invention

[0004] Based on this, the present invention provides a method and structure for actively controlling cracks during the installation of lightweight interior partition wall panels, so as to effectively prevent problems such as loosening of the partition wall panels, sinking of the panels, and reflection cracks on the surface that may occur during later use.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a method for actively controlling cracks during the installation of lightweight interior partition wall panels in buildings, the construction steps of which include:

[0006] S100. Measurement and layout: Based on the wall and column axes, lay out the installation control line after the offset of the ALC panel installation edge line;

[0007] S200. Install U-shaped steel plate clamps and L-shaped pipe clamps: Install U-shaped steel plate clamps on the structural walls and columns according to the ALC strip installation control lines, and fix them to the walls / columns with anchor bolts; use L-shaped pipe clamps to fix the top of the strips, and fix them to the floor slabs / beams with anchor bolts;

[0008] S300. Install ALC panels: Install interior partition wall ALC panels using the vertical installation method, and reinforce L-shaped corner joints and T-shaped wall joints with steel bar pins.

[0009] S400. Inspection and Correction: After each ALC panel is installed, check its verticality and flatness, and correct its position and angle.

[0010] S500. Filling the bottom joints: After the wall panels are installed, use fine aggregate concrete to fill the bottom joints of the wall panels;

[0011] S600. Processing the joint: the vertical joint between adjacent ALC panels is sealed with jointing mortar, and the upper gap is filled and smoothed; and the joint is treated with alkali-resistant glass fiber mesh to prevent cracking.

[0012] Further, the ALC panel is provided with a through hole near the bottom of the partition wall, and a longitudinal steel bar is inserted into the through hole to avoid relative displacement of adjacent partition panels; a force storage rubber belt is installed on the bottom surface of the floor / beam and is fixed by a nail gun; the ALC panels are installed on the floor one by one, and the top of each panel is tightly pressed against the bottom surface of the force storage rubber belt to form a pre-stored force structure at the top.

[0013] Further, adhesive is applied to the joint of the ALC panel during installation, and fine stone concrete is filled into the bottom after installation. The vertical joint is sealed with air-entraining special jointing mortar and treated with glass fiber mesh to prevent surface cracking. After the ALC panel is positioned, a hardwood wedge is inserted into the bottom joint to preliminarily fix the panel. Then, the installation position and the flatness and perpendicularity of the panel surface are checked, and the position and angle of the panel are corrected. After the bottom surface of the panel is adjusted to be level, a flat steel brace is used to tightly press against the force storage rubber belt, and a pipe clamp is used to fix the top of the panel. The height of the flat steel brace is adjustable, including a steel brace cylinder and a steel brace stud, which is installed vertically above the steel brace cylinder and is provided with a hexagonal head bolt. The lower end of the steel brace stud is inserted into the cavity of the steel brace cylinder, and the hexagonal head bolt is clamped on the upper edge of the steel brace cylinder to adjust the height by rotating the hexagonal head bolt.

[0014] Further, before the ALC panel is installed vertically, an L-shaped pipe clamp is driven into the top of the panel, and the insertion point is not less than 80 mm from the end of the panel. There is one pipe clamp for each panel to ensure firm positioning of the panel in the longitudinal and transverse directions. The connecting steel plate of the L-shaped pipe clamp is placed along the direction of the interior partition wall and is hidden in the joint of the top of the next panel in a concealed manner.

[0015] Further, the force storage rubber belt is an elastic rubber belt. Before the panel is installed, a cement nail is driven into the floor / beam at the central position, and the ALC panel is used to press the rubber belt and adhesive. Stress is generated between the wall panel and the main structure, the top of the wall panel is pre-stored, and cracks caused by sinking of the wall panel are prevented.

[0016] Further, the U-shaped steel plate clamp is installed on the structural shear wall or column, and a line is drawn from the installation position of the ALC panel to the shear wall or column according to the plane. One steel plate clamp is arranged at each of the middle and lower positions in the height direction of the panel, and the U-shaped steel plate clamp is fixed to the structural wall or column by a metal nail gun.

[0017] Further, a steel pin is inserted into the corner L-shaped partition wall joint and the T-shaped wall joint for reinforcement treatment. The steel pin is arranged at each of the middle and lower positions in the height direction of the wall and is inserted into the connecting wall panel.

[0018] Further, the ALC strip board is installed, the lower part of the plate joint is embedded with a hardwood wedge for preliminary fixation, the ALC strip board is embedded with polymer anti-cracking mortar, and the hardwood wedge is supported to the solidification state, and the wedge gap is sealed with polymer special anti-cracking mortar.

[0019] After the installation of the ALC strip board, the bottom of the plate is filled with fine aggregate concrete, and the fine aggregate concrete is raised in the hole in the wall plate when the wall body is squeezed on both sides.

[0020] Further, a plastering pressure groove is reserved at the vertical joint of the ALC strip board, the joint is treated with alkali-resistant glass fiber mesh for anti-cracking, the joint with a groove is pressed into the glass fiber mesh during mesh hanging, and the mesh is treated with jointing mortar for anti-cracking after initial setting; the joint without a groove is treated with wide mesh for anti-cracking.

[0021] In the second aspect, the application provides a building light-weight interior partition strip board installation crack active control structure, comprising: a building structure system comprising a plurality of installation units composed of floor slabs, shear walls / columns and floor slabs / beams; an interior partition wall system comprising ALC strip boards, force storage rubber belts, square steel frames; in one of the installation units, the side of the ALC strip board is connected to the shear wall or column to form an interior partition wall; a fixing member system comprising U-shaped steel plate clamps, L-shaped pipe clamps, metal shot bolts, steel pin nails and through steel bars; in one of the installation units, the side of the starting block and the end block of the ALC strip board is fixed on the shear wall through the U-shaped steel plate clamp, and the top is fixed on the bottom of the floor slab or the bottom of the beam through the L-shaped pipe clamp, and the U-shaped steel plate clamp and the pipe clamp are anchored on the concrete structure through the metal shot bolt; the steel pin nail is inserted into the corner L-shaped partition wall node and the T-shaped wall node for reinforcement treatment; and an anti-cracking material system comprising adhesives, filling fine aggregate concrete, air-entraining special jointing mortar and glass fiber mesh.

[0022] The technical advantages of the building light-weight interior partition strip board installation crack active control method and structure provided at least include:

[0023] 1. A series of crack active control technologies such as top rubber belt force storage, bottom jacking technology, concealed L-shaped pipe clamp, special node steel pin nail and joint anti-cracking treatment are adopted, which can significantly reduce the risk of surface cracking of the interior partition wall and reduce the surface cracking phenomenon;

[0024] 2. A variety of crack active control methods and structures are used in the installation process of the ALC strip board, which greatly improves the anti-cracking performance of the strip board installation, is beautiful and practical, significantly improves the use effect, reduces the labor intensity of workers, improves the production efficiency, greatly reduces the cost, is safe and reliable in construction, and is easy to ensure the engineering quality, has strong popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0026] Figure 1 The flow chart of the provided active crack control method for installing the light-weight interior partition wall slab of the building.

[0027] Figure 2 The embodiment elevation schematic diagram of the provided active crack control structure for installing the light-weight interior partition wall slab of the building.

[0028] Figure 3 The provided U-shaped steel plate card installation structure diagram.

[0029] Figure 4 The provided L-shaped pipe card installation elevation and plane structure diagram.

[0030] Figure 5 The provided steel reinforcement pin reinforcement treatment structure diagram for the corner L-shaped node and T-shaped wall node.

[0031] Figure 6 The provided ALC slab bottom joint hardwood wedge support pad schematic diagram.

[0032] Figure 7 The provided ALC slab joint crack resistance treatment schematic diagram.

[0033] Figure 8 The provided adjustable height flat steel bracing setting schematic diagram.

[0034] Figure 9 The provided ALC slab installation and square frame setting schematic diagram for the door and window opening.

[0035] The drawing mark explanation:

[0036] 1-building structure system; 11-floor surface; 12-shear wall / column; 13-floor slab / beam;

[0037] 2-interior partition wall system; 21-ALC slab; 22-force storage rubber belt; 23-square steel frame;

[0038] 31-U-shaped steel plate card; 32-L-shaped pipe card; 33-metallic shot bolt; 34-steel reinforcement pin; 35-continuous steel reinforcement;

[0039] 41-adhesive; 42-filling fine stone concrete; 43-air-entraining special jointing mortar; 44-glass fiber mesh cloth;

[0040] 51 - hardwood wedge; 52 - flat steel shore.

[0041] It should be understood that the dimensions of the various parts shown in the drawings are not drawn to scale. Furthermore, like or similar reference numerals are intended to represent like or similar parts. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some of the embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0043] As Figures 1 to 9 shown, in order to provide a better effect of building light inner partition wall strip installation crack active control method and structure, see the specific implementation part of multiple substantial technical effects. In order to achieve the above purpose, the present application adopts the following technical scheme: a building light inner partition wall strip installation crack active control structure, comprising a building structure system 1, an inner partition wall system 2, a fixed component system 3, an anti-cracking material system 4 and a construction machine system 5. The building structure system comprises a floor 11, a shear wall / column 12 and a floor slab / beam 13; the inner partition wall system 2 comprises an ALC strip 21, a force storage rubber belt 22 and a square steel frame 23; in one installation unit, the side surface of the ALC strip is connected to the shear wall or column 12 to form an inner partition wall.

[0044] It should be noted that the multiple schemes provided include the basic scheme itself, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together. The present drawing is a schematic diagram of the main components of the present structure and method, and does not represent the shape size, connection mode, assembly form, positional relationship, etc. of the present application. Some bars and the like are omitted in the drawing.

[0045] In the civil construction stage, reinforced concrete floor, shear wall, column, floor slab and beam are poured on site in sequence; after the building structure system is poured, the support and formwork are removed, and the turnover materials and remaining materials on the floor 11 are cleaned; the force storage rubber belt 22 is installed on the bottom surface of the floor slab / beam 13 first, and is punched in using a nail gun; the ALC strip 21 is installed on the floor in blocks, and is tightly pressed on the bottom surface of the force storage rubber belt 22 to form a top pre-force storage structure; when the building height is greater than 5.4m or the door and window openings are used, the square steel frame 23 is used to divide the space into installation units with appropriate size to ensure the rigidity and applicability of the strip partition wall.

[0046] The fixing member system comprises a U-shaped steel plate clamp 31, an L-shaped pipe clamp 32, a metal shot bolt 33, a steel bar pin 34, and a through steel bar 35. In an installation unit, the starting block and the ending block of the ALC strip 21 are fixed on the shear wall by the U-shaped steel plate clamp 31 on the side, and are fixed on the floor bottom or the beam bottom by the L-shaped pipe clamp 32 on the top. The U-shaped steel plate clamp and the pipe clamp are anchored on the concrete structure by the metal shot bolt 33. The steel bar pin 34 is penetrated into the L-shaped partition wall joint and the T-shaped wall joint for reinforcement. The ALC strip is produced with a reserved Φ8mm through hole at a position 1m and 2m away from the bottom of the partition wall, and the through steel bar 35 is penetrated into the reserved hole during installation, so as to avoid the relative displacement of the adjacent partition wall plates. The anti-cracking material system comprises an adhesive 41, a fine stone concrete 42, an air-entraining special jointing mortar 43, and a glass fiber mesh 44.

[0047] The ALC strip is installed by the vertical installation method, the adhesive 41 is fully punched at the joint of the strip during installation, the fine stone concrete 42 is filled at the bottom after installation, the air-entraining special jointing mortar 43 is used for pointing at the vertical joint, and the glass fiber mesh 44 is used for surface anti-cracking treatment. The construction tool system comprises a crowbar, a rubber hammer, a hardwood wedge 51, a laser line projector, a ruler, a grinding machine, and a flat steel support 52.

[0048] After the ALC strip is positioned, the hardwood wedge 51 is initially fixed by being embedded in the bottom joint, the installation position and the flatness, the verticality of the plate surface are checked by using the laser line projector and the ruler, and the strip is corrected by using the crowbar and the rubber hammer. After the bottom surface of the strip is adjusted to be horizontal, the flat steel support 52 is used to tightly press upward on the force storage rubber belt, and the pipe clamp is used to fix the top of the plate.

[0049] When the ALC strip partition wall is installed at the door / window hole, the square steel frame 23 is used for reinforcement around the door / window hole, and the square steel frame is firmly connected with the main structure. The strip and the square steel frame are processed by using the grinding machine, or the strip is cut when the installation space is insufficient for an integral plate, so as to facilitate the small patch plate.

[0050] The force storage rubber belt 22 is a gray white elastic rubber belt with a width×length of 50mm×600mm and a thickness of 5mm. Before the strip is installed, the galvanized cement shot bolt with L=25mm is punched into the floor / beam 13 at the central position, the rubber belt and the adhesive are extruded by the top of the ALC strip 21, the stress between the wall plate and the main structure is generated, the top of the wall plate is stored with force, the cracks caused by the sinking of the wall plate are prevented, and the construction quality is significantly improved.

[0051] In some embodiments, the U-shaped steel plate clamp 31 is installed on a structural shear wall or column, the steel plate clamp uses Q235 steel, hot-dip galvanizing treatment, L = 60 mm, t = 1.5 mm; according to the ALG strip plate 21 plane installation position, a steel plate clamp is arranged on the shear wall or column in the middle and lower direction of the corresponding strip plate height, the starting steel plate clamp is preferably 300 mm away from the floor, and the interval is not greater than 1500 mm; the U-shaped steel plate clamp is fixed to the structural wall or column using two M10 metal shot bolts 33.

[0052] In some embodiments, the L-shaped pipe clamp 32 uses Q235 steel, hot-dip galvanizing treatment, the connecting steel plate is 60-70 mm wide and not less than 1.5 mm thick, and two Φ10 mm round holes are formed; before the ALC strip plate 21 is installed vertically, the L-shaped pipe clamp 32 is first punched into the top of the plate, the insertion point is not less than 80 mm away from the plate end, and one pipe clamp is arranged on each plate to ensure that the strip plate is firmly positioned in the longitudinal and transverse directions. The connecting steel plate of the L-shaped pipe clamp 32 is placed in the direction of the interior partition wall and is of a concealed type, two M8 metal shot bolts 33 are inverted and punched into the bottom surface of the floor / beam 13, and are sequentially hidden in the joint between the top of the next strip plate.

[0053] In some embodiments, a steel bar pin 34 is inserted at the corner L-shaped partition wall node and T-shaped wall node for reinforcement treatment; the steel bar pin uses Φ8 HPB300 steel bar, is 300-400 mm long, and is arranged in the middle and lower direction of the wall height, and is inserted into the connecting wall plate by not less than 150 mm.

[0054] The ALG strip plate 21 has a thickness T = 100-300 mm and a width B = 595 mm; the compressive strength is ≥5.0 MPa; the container weight is ≤11.0 KN / m³; the fire resistance limit is ≥1.0 h100 mm, 2.0 h200 mm; when produced in a factory, a Φ8 mm through-hole reinforcing hole is reserved at a position 1 m and 2 m away from the bottom of the wall plate, a through steel bar 35 is inserted into the reserved hole of the strip plate during installation, relative displacement of adjacent strip plates is avoided, and manual connection of adjacent strip plates during on-site construction is effectively reduced.

[0055] In some embodiments, when the ALC strip plate 21 is installed, a hardwood wedge 51 is first embedded at the lower plate joint for preliminary fixation, the ALC strip plate is timely checked for flatness and perpendicularity of the plate surface using a ruler and a laser plummet, after the check is completed, the plate joint is embedded with polymer anti-cracking mortar, the supporting wooden wedge is removed after 7 days, and the wedge gap is sealed with polymer special anti-cracking mortar; after installation of each ALC strip plate is completed, the verticality and flatness of the strip plate installation are checked in time using a laser line projector and a 2 m ruler, if the requirements are not met, a crowbar and a rubber hammer are used for position adjustment, the crowbar is slowly pushed during adjustment; the rubber hammer is used for fine adjustment until the requirements are met.

[0056] After the ALC strip panel 21 is installed, remove the dirt at the bottom of the foot and sprinkle water to moisten it, then fill the bottom of the panel with fine stone concrete 42. When filling, two professional workers should be used to squeeze the fine stone concrete 42 in the hole of the wall panel at the same time.

[0057] The ALC strip panel 21 is vertically spliced with a reserved 10mm deep and 50mm wide plaster groove, and the spliced joint is treated with 100mm alkali-resistant glass fiber mesh 44 to resist cracking. When hanging the mesh, the spliced joint with a groove is pressed into a 50mm wide glass fiber mesh with a 3mm-5mm special mortar, and after initial setting, an air-entraining special caulking mortar 43 is used to paste a 100mm wide mesh for secondary crack resistance treatment; the spliced joint without a groove is pasted with a 100mm wide mesh for crack resistance treatment.

[0058] After the ALC strip panel 21 is positioned and adjusted to the same height, two adjustable height flat steel jacks 52 are arranged at the bottom of the partition panel to tightly jack up the ALC partition panel and store the force of the rubber belt 22, forming a vertical pre-stressed structure, which can also make the bottom of the strip panel dense to prevent settlement;

[0059] The height adjustment range of the flat steel jack is 50-100mm, which is made of Q235 material steel and surface hot galvanizing treatment; the bottom structure is a steel support cylinder, and the steel support screw rod is configured with an M36 large hexagonal head bolt, the steel support screw rod is inserted into the steel support cylinder cavity, the M36 large hexagonal head bolt is clamped on the upper edge of the steel support cylinder, and a special wrench is used to rotate the bolt to achieve height adjustment.

[0060] When installing the ALC strip panel partition wall at the door / window opening, a square steel frame is used for stiffening around the door / window opening, and the square steel frame is connected firmly with the main structure using Ф6x150mm galvanized cement nails; a grinding machine is used to process the strip panel and square steel frame according to the size of the door / window opening, and when the installation space is insufficient for a whole panel, the strip panel also needs to be cut to facilitate small patch panels. When the ALC strip panel interior partition wall is used in a waterproof area, a concrete sill with a height of 200mm should be poured on the floor, and the ALC strip panel is installed on the sill piece by piece, with the same process as on the floor.

[0061] The provided building light interior partition wall strip panel installation crack active control method and structure are suitable for the installation of interior partition wall panels of civil buildings and general industrial buildings. Through deepening design, optimizing construction technology, adopting a series of crack active control technologies such as top rubber belt force storage, bottom jacking technology, hidden L-shaped pipe clamp, special node setting of steel pin, spliced joint crack resistance treatment, etc., the risk of surface cracking of the interior partition wall can be significantly reduced. The technical invention reduces the labor intensity of workers, improves the production efficiency, and greatly reduces the cost, and is safe and reliable in construction, and the engineering quality is easy to guarantee, which has strong popularization value.

[0062] The following is a detailed description of the active control method for installing the cracks of the building lightweight interior partition strip board, as shown in Figure 1 The construction steps are as follows:

[0063] S100. Measurement and line laying, including:

[0064] Use the measurement robot and the line marking robot to lay out the installation control line with a 50mm offset of the ALC strip board 21 installation edge line according to the wall and column axis, and pop the line on the floor 11, and guide the pop to the shear wall and column at the corner. During installation, check the partition board installation position according to the distance between the installation control line and the ALC board edge.

[0065] S200. Install U-shaped steel plate clamp 31 and pipe clamp, specifically including:

[0066] Install the U-shaped steel plate clamp 31 on the structural wall and column according to the ALC strip board 21 installation control line, and set one at each of the upper and lower 1 / 3 of the U-shaped steel plate clamp 31. The starting steel plate clamp distance from the floor should be 300mm, and the spacing should not be greater than 1500mm, and it is fixed with M10 anchor bolts on the wall / column. The top of the strip board is fixed with an L-shaped pipe clamp 32, and M8 anchor bolts are driven into the floor / beam 13; before standing and installing, knock the round pipe end of the pipe clamp directly into the board at the top of the board, and the insertion point should be at least 80mm away from the board end. When knocking in, the fitting should be upright to avoid tilting the fitting and causing damage to the board corners when knocking in.

[0067] S300. Install ALC strip board 21, including:

[0068] (1) The interior partition ALC strip board 21 uses the vertical installation method, and full adhesive 41 is applied at the vertical joint before installation, and the extrusion paste process is used.

[0069] (2) First, embed a hardwood wedge 51 at the lower board joint to preliminarily fix it. When installing the strip board, check the flatness and perpendicularity of the board surface in time, and adjust the position using a crowbar and a rubber hammer. After passing the inspection, use polymer anti-crack mortar to embed the board joint, and remove the supporting wooden wedge after 7 days.

[0070] (3) Use Ф8 steel reinforcement pins 34 to reinforce the L-shaped nodes at the corners and the T-shaped wall nodes. One should be inserted at each of the upper, middle and lower parts along the wall height, with a length of 300-400mm, and the insertion into the connected wall board should be at least 150mm, and the spacing should be 800-1000mm.

[0071] S400. Inspection and correction, including:

[0072] After the installation of each ALC strip board 21 is completed, use a 2m ruler, a plummet or a laser plumb instrument to check the perpendicularity and flatness of the strip board installation. If it does not meet the requirements, use a crowbar to adjust the position. When adjusting, the crowbar should be slowly prised; fine adjustment can be made by knocking with a rubber hammer until the requirements are met.

[0073] S500. Bottom joint filling, comprising:

[0074] (1) After the wallboard is installed, the lower debris is removed, and the floor 11 is wetted, the special fine stone concrete is used to fill the bottom joint of the wallboard, and two professional workers are simultaneously squeezed on both sides of the wall body to make the special filling mortar rise in the hole of the wallboard. After the bottom hardwood wedge 51 is removed, the wooden wedge hole is filled with cement mortar and smoothed.

[0075] (2) The wallboard installation within 7 days is a static period, and it is strictly forbidden to hit, groove, and lean on tools and materials on the wallboard to prevent cracking caused by vibration and disturbance.

[0076] S600. Joint treatment, comprising:

[0077] (1) The vertical joints between the strips are all filled with air-entraining special jointing mortar 43, and all the upper joint gaps of the strips are filled and smoothed.

[0078] (2) 100mm alkali-resistant glass fiber mesh 44 is used for crack resistance treatment. When hanging the mesh, the joints with grooves are pressed into 50mm wide glass fiber mesh with 3mm-5mm special mortar, and after initial setting, 100mm wide mesh is pasted again for crack resistance treatment; the joints without grooves are pasted with a 100mm wide mesh for crack resistance treatment.

[0079] When the ALC strip wall 21 is installed at the door / window opening, the opening around must be reinforced with a square steel frame 23, which can be processed with 100x100x2.5mm and connected firmly with Ф6x150mm galvanized cement nails with a spacing of no more than 1000mm. When the installation space is insufficient for a whole plate, the strip needs to be cut to make small patch plates.

[0080] A building light internal partition strip installation crack active control method and structure, through optimization, improvement of design and construction technology, a series of technologies such as top rubber belt force storage, bottom bracing technology, hidden type L-shaped pipe clamp 32, special node setting steel pin 34, joint crack resistance treatment, fixed strip installation position, and reduced surface cracking phenomenon.

[0081] The technology uses a variety of crack active control methods and structures during the installation of ALC strips 21, greatly improves the crack resistance of the strip installation, is beautiful and practical, and significantly improves the use effect, the structure design is reasonable, the technology is advanced, and the effect is good; The technical scheme is innovative in design, engineering application test, advanced in technology, safe and reliable in construction, good in use effect, and greatly reduces the mechanical and personnel cost of internal partition wall construction, and has strong industrial practicality.

[0082] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various optimizations and improvements can be made, and these optimizations and improvements all fall within the scope of the claimed subject matter.

Claims

1. A method for actively controlling cracks during the installation of lightweight interior partition wall panels, comprising the following structure: The building structure system (1) includes multiple installation units consisting of floors (11), shear walls / columns (12) and floor slabs / beams (13); The internal partition wall system (2) includes ALC strips (21), energy storage rubber strips (22), and square steel frames (23); within one of the installation units, the sides of the ALC strips (21) are connected to shear walls / columns (12) to form an internal partition wall; The fixing component system includes U-shaped steel plate clamps (31), L-shaped pipe clamps (32), metal bolts (33), steel bar pins (34), and continuous steel bars (35); within one of the installation units, the starting and ending blocks of the ALC strip (21) are fixed to the shear wall by U-shaped steel plate clamps (31) on the sides, and the top is fixed to the bottom of the floor slab or beam by L-shaped pipe clamps (32); the U-shaped steel plate clamps and pipe clamps are anchored to the concrete structure by metal bolts (33); steel bar pins (34) are inserted at corner L-shaped nodes and T-shaped wall nodes for reinforcement; and The crack-resistant material system includes an adhesive (41), fine aggregate concrete (42), aerated mortar (43), and fiberglass mesh (44). Its characteristic is that the construction steps include: S100. Measurement and layout: Based on the wall and column axes, lay out the installation control line after the offset of the ALC panel (21) installation edge line; S200. Install U-shaped steel plate clamps (31) and L-shaped pipe clamps (32): Install U-shaped steel plate clamps (31) on the structural walls and columns according to the control line of ALC strip (21) and fix them to the walls / columns with anchor bolts; use L-shaped pipe clamps (32) to fix the top of the strip and fix it to the floor slab / beam (13) with anchor bolts; S300. Install ALC strips (21): Install the interior partition wall ALC strips (21) using the vertical installation method, and reinforce the corner L-shaped nodes and T-shaped wall nodes with steel bar pins (34); S400. Inspection and Correction: After each ALC strip (21) is installed, check its verticality and flatness, and correct its position and angle. S500. Filling the bottom joints: After the wall panels are installed, use fine aggregate concrete to fill the bottom joints of the wall panels; S600. Treatment of joints: Use jointing mortar to fill the vertical joints between adjacent ALC strips (21), and smooth the upper gaps; and use alkali-resistant glass fiber mesh (44) for bonding and crack prevention treatment. The ALC strip (21) has through holes reserved near the bottom of the partition wall, and a long steel bar (35) is passed through the reserved holes to avoid relative displacement between adjacent partition walls; a power storage rubber strip (22) is installed on the bottom surface of the floor slab / beam (13) and fixed with nails; the ALC strip (21) is installed piece by piece on the floor, and the top is pressed against the bottom surface of the power storage rubber strip (22) to form a top pre-power storage structure; When installing the ALC strip (21), apply adhesive (41) to the joint of the strip. After installation, fill the bottom with fine stone concrete (42). Use aerated special caulking mortar (43) to grout the vertical joints and use fiberglass mesh (44) for surface anti-cracking treatment. After the ALC strip (21) is positioned, first embed hardwood wedges (51) into the bottom joints for initial fixation. Then check the installation position, flatness and verticality of the board surface, and correct the position and angle of the strip. After the bottom surface of the strip is adjusted to be level, use flat steel top support (52) to push it upwards and tighten it on the power storage rubber belt. Use pipe clamps to fix the top of the board. The height of the flat steel top support (52) is adjustable, including a steel support cylinder and a steel support stud. The steel support stud is vertically installed above the steel support cylinder and is equipped with a hexagonal head bolt. The lower end of the steel support stud is inserted into the cavity of the steel support cylinder, and the hexagonal head bolt is engaged with the upper edge of the steel support cylinder so that the height can be adjusted by turning the hexagonal head bolt. Before the ALC strip (21) is erected, L-shaped pipe clamps (32) are driven into the top of the strip. The insertion point should be no less than 80mm from the end of the strip. One pipe clamp is used for each strip to ensure that the strip is firmly positioned in the longitudinal and transverse directions. The connecting steel plate of the L-shaped pipe clamp (32) is placed along the direction of the inner partition wall. It is a concealed installation. Metal bolts (33) are driven into the bottom surface of the floor slab / beam (13) and concealed in the top joint of the next strip.

2. The method for actively controlling cracks during the installation of lightweight interior partition wall panels as described in claim 1, characterized in that, The energy storage rubber strip (22) is an elastic rubber strip. Before the strip is installed, it is nailed into the floor slab / beam (13) at the center position using cement nails. The rubber strip and adhesive are squeezed by the top of the ALC strip (21), and stress is generated between the wall panel and the main structure, so that the top of the wall panel stores energy and prevents the wall panel from sinking and cracking.

3. The method for actively controlling cracks during the installation of lightweight interior partition wall panels as described in claim 1, characterized in that, The U-shaped steel plate clip (31) is installed on the structural shear wall or column. According to the plane installation position of the ALC strip (21), the line is drawn to the shear wall or column. A steel plate clip is set at the middle and lower of the corresponding strip height direction. The U-shaped steel plate clip is fixed to the structural wall or column using metal bolts (33).

4. The method for actively controlling cracks during the installation of lightweight interior partition wall panels as described in claim 1, characterized in that, Reinforcing treatment is achieved by inserting steel bar pins (34) into the L-shaped corner nodes and T-shaped wall nodes; one steel bar pin (34) is inserted into the middle and one into the bottom along the wall height and deeply inserted into the connecting wall panel.

5. The method for actively controlling cracks during the installation of lightweight interior partition wall panels as described in claim 1, characterized in that, When installing the ALC strip (21), a hardwood wedge (51) is first embedded in the lower board joint for initial fixation. The ALC strip (21) is then filled with polymer crack-resistant mortar and supported by the hardwood wedge (51) until it solidifies. The wedge opening is then sealed with polymer-specific crack-resistant mortar. After the ALC strip (21) is installed, the bottom of the board is filled with fine stone concrete (42). During filling, the fine stone concrete (42) is simultaneously squeezed against the sides of the wall to make it bulge in the inner hole of the wall panel.

6. The method for actively controlling cracks during the installation of lightweight interior partition wall panels as described in claim 1, characterized in that, A groove for plastering is reserved at the vertical joint of the ALC strip (21). The joint is bonded with alkali-resistant glass fiber mesh (44) for crack prevention. When hanging the mesh, the joint with groove is pressed into the glass fiber mesh with mortar. After initial setting, the mesh is pasted with joint mortar (43) for crack prevention treatment again. The joint without groove is pasted with wide mesh for crack prevention treatment.

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