Putty material, fireproof and soundproof wallboard structure system and construction method

Abstract

The invention relates to the technical field of building structures, and particularly provides a putty material, a fireproof and soundproof wallboard structure system and a construction method. The metal damping putty material comprises the following components: 100 parts of metal powder, 30-100 parts of an acrylic acid high-elasticity emulsion, 5-30 parts of cement, 5%-2% of a dispersant, 8%-2% of a leveling agent, 6%-2% of a defoaming agent and 6%-2% of a thickening agent. The fireproof and soundproof wallboard structure system comprises a profile steel framework and prefabricated light partition wallboards. The profile steel framework comprises steel columns and steel beams; space defined by the steel columns and the steel beams is filled with prefabricated light partition boards. The surface of the prefabricated light partition board is sequentially coated with a metal damping putty material and a fireproof coating. The structure system has good fireproof and sound insulation performance, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of building structures, and particularly relates to a putty material, a fireproof and sound-insulating wallboard structure system and a construction method thereof. Background Art

[0002] In recent years, with the continuous development of China's economy, large public buildings such as convention centers, grand theaters, stadiums and ocean exhibition halls have emerged one after another. To meet the functional requirements of large-span, large-space and high-quality, the walls generally have the characteristics of being extremely high, extremely long, complex in shape, and having high requirements for fire protection and sound insulation. At present, the conventional secondary structure wall structure at home and abroad is in the form of masonry. For super-high and large-span special-shaped secondary structure masonry walls, there are still common problems such as poor fire protection and sound insulation effects; many construction processes, low construction efficiency and long construction period. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a putty material, a fireproof and sound-insulating wallboard structure system and a construction method thereof.

[0004] In the first aspect, a metal damping putty material proposed by the present invention, by mass, the metal damping putty material comprises the following components: 100 parts of metal powder, 30 parts - 100 parts of acrylic high-elastic emulsion, 5 parts - 30 parts of cement, 0.5 parts per thousand - 2 parts of dispersant, 0.8 parts per thousand - 2 parts of leveling agent, 0.6 parts per thousand - 2 parts of defoaming agent and 0.6 parts per thousand - 2 parts of thickening agent.

[0005] Further, the particle size of the metal powder is 50 mesh - 150 mesh.

[0006] In the second aspect, the present invention proposes a fireproof and sound-insulating wallboard structure system, which comprises a steel skeleton and precast lightweight partition boards; the steel skeleton comprises vertical load-bearing structural steel columns and horizontal load-bearing structural steel beams; the precast lightweight partition boards are filled and installed in the space surrounded by the vertical load-bearing structural steel columns and the horizontal load-bearing structural steel beams; the surfaces of the precast lightweight partition boards are sequentially coated with a metal damping putty material and a fireproof coating; the metal damping putty material comprises the following components: 100 parts of metal powder, 30 parts - 100 parts of acrylic high-elastic emulsion, 5 parts - 30 parts of cement, 0.5 parts per thousand - 2 parts of dispersant, 0.8 parts per thousand - 2 parts of leveling agent, 0.6 parts per thousand - 2 parts of defoaming agent and 0.6 parts per thousand - 2 parts of thickening agent.

[0007] Further, the precast lightweight partition boards include reinforced ceramsite polymer hollow strip boards and solid composite precast large boards.

[0008] Further, the reinforced ceramsite polymer hollow strip board is connected to the vertical load-bearing structural steel column and the horizontal load-bearing structural steel beam respectively through U-shaped steel plate clamps; the gaps between the reinforced ceramsite polymer hollow strip board and the vertical load-bearing structural steel column and the horizontal load-bearing structural steel beam are filled with high-strength polymer mortar.

[0009] Further, two adjacent reinforced ceramsite polymer hollow strip boards are spliced through a card slot, and the card slot is filled with high-strength polymer mortar; an anti-cracking paper tape is pasted at the splicing joint of two adjacent reinforced ceramsite polymer hollow strip boards.

[0010] Further, the solid composite precast slab is connected to the vertical load-bearing structural steel column and the horizontal load-bearing structural steel beam respectively through steel connectors; the gaps between the solid composite precast slab and the vertical load-bearing structural steel column and the horizontal load-bearing structural steel beam are filled with high-strength polymer mortar.

[0011] Further, two adjacent solid composite precast slabs are spliced through a tongue-and-groove joint; the tongue-and-groove joint is filled with high-strength polymer mortar.

[0012] Further, the vertical load-bearing structural steel column includes an I-beam, a steel mesh and stiffening plates; the I-beam includes a web and flange plates arranged at both ends of the web; the stiffening plates are arranged at intervals on both sides of the web; both ends of the stiffening plates are respectively connected to the two flange plates; the steel mesh is arranged at intervals between the stiffening plates and the web; high-strength polymer mortar wrapping the steel mesh is filled between the stiffening plates and the web; a fireproof coating is provided on the plate surface of the stiffening plate facing away from the web.

[0013] In the third aspect, the present invention provides a construction method for a fireproof and sound-insulating wall panel structure system, including the following steps:

[0014] Deepening the design of the profiled steel skeleton;

[0015] Deepening the design of the precast lightweight partition wall panel; among them, the reinforced ceramsite polymer hollow strip board is used for the wall with a height of 6 meters or less, and the solid composite precast slab is used for the wall with a height of more than 6 meters;

[0016] Installing the profiled steel skeleton;

[0017] Installing the precast lightweight partition wall panel;

[0018] Constructing the grooving and hole-opening on the precast lightweight partition wall panel;

[0019] Anti-cracking treatment: Fill the gaps between the precast lightweight partition boards or between the precast lightweight partition boards and the steel skeleton with high-strength polymer mortar, and paste a fiberglass mesh belt on the surface of the high-strength polymer mortar and apply an anti-cracking putty material composed of putty powder and high-elastic fiber putty for anti-cracking treatment;

[0020] Apply a metal damping putty material to the surface of the precast lightweight partition board;

[0021] Apply a fireproof coating to the surface of the precast lightweight partition board.

[0022] The beneficial effects of the present invention are as follows: By using metal powder as the main component of the metal damping putty material, the surface density is increased and the sound insulation performance is improved; By using acrylic high-elastic emulsion, as a viscoelastic material with high internal resistance, it produces a damping effect when sound waves reach the putty surface, converting part of the vibration energy into heat energy, thereby reducing vibration and noise; The dispersant ensures that the particles in the putty remain dispersed and stable; The leveling agent reduces the surface tension of the putty, improving its leveling property and uniformity; The defoaming agent inhibits the generation of foam in the putty; The thickening agent increases the viscosity of the putty, keeping the putty in a uniform and stable suspension state or emulsion state, or forming a gel; The metal damping putty material of the present invention is applicable to uneven walls and special-shaped walls, and the wall coated with this metal damping putty material can achieve good sound insulation effects.

[0023] By applying a fireproof coating to the surface of the precast lightweight partition board, the problem of insufficient self-fire prevention of the precast lightweight wallboard is solved.

[0024] By splitting the secondary structure wall into a steel skeleton and precast lightweight partition boards, using a frame support system composed of vertical load-bearing structural steel columns and horizontal load-bearing structural steel beams to replace the masonry wall construction columns and ring beams, and using the precast lightweight partition boards as infill walls to replace the masonry, the wet operation is avoided through factory prefabrication without plastering, and the on-site mechanized hoisting operation does not require the erection of an operation scaffold, reducing the construction safety risk and the difficulty of green and civilized construction, improving the construction efficiency, and realizing the high-quality and rapid construction of the large-space steel skeleton precast lightweight partition board. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the fireproof and sound-insulating wallboard structure system of the present invention;

[0026] Figure 2 It is a schematic diagram of the connection node between the reinforced ceramsite polymer hollow strip board and the vertical load-bearing structural steel column of the present invention;

[0027] Figure 3 It is a schematic diagram of the connection node between the reinforced ceramsite polymer hollow strip board and the horizontal load-bearing structural steel beam of the present invention;

[0028] Figure 4Schematic diagram of the connection node between the solid composite precast large panel of the present invention and the vertical force-bearing structural steel column;

[0029] Figure 5 Schematic diagram of the connection node between the solid composite precast large panel of the present invention and the horizontal force-bearing structural steel beam;

[0030] Figure 6 Schematic diagram of the splicing node of adjacent reinforced ceramsite polymer hollow strip plates of the present invention;

[0031] Figure 7 Schematic diagram of the splicing node of adjacent solid composite precast large panels of the present invention;

[0032] Figure 8 Schematic diagram of the connection node between the vertical force-bearing structural steel column and the structural concrete of the present invention;

[0033] Figure 9 Schematic diagram of the cross-sectional structure of the vertical force-bearing structural steel column of the present invention.

[0034] In the figure: 1 - Reinforced ceramsite polymer hollow strip plate; 2 - Vertical force-bearing structural steel column; 3 - Concrete anti-camber; 4 - Horizontal force-bearing structural steel beam; 5 - Solid composite precast large panel; 6 - Structural concrete; 7 - Chemical bolt; 8 - Steel structure connecting plate; 101 - U-shaped steel plate clamp; 102 - High-strength polymer mortar; 103 - Crack-resistant paper tape; 201 - I-beam; 202 - Steel mesh; 203 - Stiffening plate; 204 - Fireproof coating; 501 - Steel connector. Detailed implementation mode

[0035] The following further describes the present application in detail in conjunction with the accompanying drawings and specific implementations:

[0036] As Figure 1 shown, the fireproof and sound-insulating wallboard structure system proposed by the present invention deeply disassembles the traditional secondary structure wall into column, beam, and infill wall components, forming a "steel skeleton + precast lightweight partition board" composite structure system. Among them, the steel skeleton includes a vertical force-bearing structural steel column 2 and a horizontal force-bearing structural steel beam 4; a precast lightweight partition board is filled and installed in the space surrounded by the vertical force-bearing structural steel column 2 and the horizontal force-bearing structural steel beam 4; the precast lightweight partition board includes a reinforced ceramsite polymer hollow strip plate 1 and a solid composite precast large panel 5. Of course, in this embodiment, the structure system also includes a concrete anti-camber 3. Its force transmission path is: precast lightweight partition board (or simply referred to as wallboard) → horizontal force-bearing structural steel beam 4 (or simply referred to as steel beam or steel beam) → vertical force-bearing structural steel column 2 (or simply referred to as steel column or steel column) → structural concrete 6 (or called the original concrete structure), and the vertical force-bearing structural steel column 2 and the horizontal force-bearing structural steel beam 4 are the main force-bearing structures of the structure system (or called the wall).

[0037] To achieve the rapid installation of ultra-high precast lightweight partition panels and ensure the safety of a large number of pipeline openings at the top, the precast lightweight partition panel adopts a mixed form of "reinforced ceramsite polymer hollow strip board 1 (or simply referred to as precast lightweight hollow wall panel) + solid composite precast large board 5 (or simply referred to as precast large board)". Specifically, for wall panels with a height of 6m or less, reinforced ceramsite polymer hollow strip board 1 is used. For wall panels above 6m, considering the safety of a large number of pipeline openings, meeting the sound insulation effect, and reducing the weight of the precast large board, solid composite precast large board 5 is used. In this embodiment, solid composite precast large board 5 with a double-layer structure is adopted.

[0038] A concrete counter-camber 3 is set between the floor slab and the bottom of the wall as a cushion beam to meet the requirements of embedded chemical anchor bolts and the punching shear bearing capacity at the bottom of the column.

[0039] As Figure 2 shown, the reinforced ceramsite polymer hollow strip board 1 is welded to the vertical load-bearing structural steel column 2 by a U-shaped steel plate clamp 101. The spacing of the U-shaped steel plate clamps 101 is not greater than 0.75m. The gap between the reinforced ceramsite polymer hollow strip board 1 and the vertical load-bearing structural steel column 2 is filled with high-strength polymer mortar 102.

[0040] As Figure 3 shown, the reinforced ceramsite polymer hollow strip board 1 is welded to the horizontal load-bearing structural steel beam 4 by a U-shaped steel plate clamp 101. The U-shaped steel plate clamps 101 are located at the connection positions of the reinforced ceramsite polymer hollow strip board 1. The gap between the reinforced ceramsite polymer hollow strip board 1 and the horizontal load-bearing structural steel beam 4 is filled with high-strength polymer mortar 102.

[0041] As Figure 4 shown, the solid composite precast large board 5 is welded to the vertical load-bearing structural steel column 2 through a steel connector 501. The spacing of the steel connectors 501 is not greater than 0.75m. The gap between the solid composite precast large board 5 and the vertical load-bearing structural steel column 2 is filled with high-strength polymer mortar 102.

[0042] As Figure 5 shown, the solid composite precast large board 5 is welded to the horizontal load-bearing structural steel beam 4 through a steel connector 501. The spacing of the steel connectors 501 is not greater than 0.75m. The gap between the solid composite precast large board 1 and the horizontal load-bearing structural steel beam 4 is filled with high-strength polymer mortar 102.

[0043] As Figure 6 shown, adjacent reinforced ceramsite polymer hollow strip boards 1 are spliced through a card slot. The card slot is filled with high-strength polymer mortar 102 in the middle. An anti-cracking paper tape 103 is pasted at the joint and smoothed with high-strength polymer mortar 102. One end of each reinforced ceramsite polymer hollow strip board 1 is provided with a card slot, and the other end is provided with a protrusion that cooperates with the card slot of the adjacent reinforced ceramsite polymer hollow strip board 1; the horizontal cross-section of the card slot or the protrusion is trapezoidal.

[0044] As shown Figure 7 in the figure, the adjacent solid composite precast large panels 5 are spliced through rabbets, the rabbets are welded through steel connectors 501, and the middle gap is filled with high-strength polymer mortar 102.

[0045] As shown Figure 8 in the figure, the bottom of the vertical load-bearing structural steel column 2 is welded to the steel structure connecting plate 8, and the steel structure connecting plate 8 is connected to the structural concrete 6 through chemical bolts 7.

[0046] As shown Figure 9 in the figure, taking the vertical load-bearing structural steel column 2 as an example, the vertical load-bearing structural steel column 2 includes an I-beam 201, a steel mesh 202 and a stiffening plate 203; the I-beam 201 includes a web and flange plates arranged at both ends of the web; the stiffening plates 203 are arranged at intervals on both sides of the web; both ends of the stiffening plate 203 are respectively connected to the two flange plates; a steel mesh 202 is arranged at intervals between the stiffening plate 203 and the web; high-strength polymer mortar 102 wrapping the steel mesh 202 is filled between the stiffening plate 203 and the web; a 15 mm fireproof coating 204 is provided on the plate surface of the stiffening plate 203 facing away from the web. In this embodiment, the fireproof coating adopts Sika fireproof coating.

[0047] In this embodiment, the horizontal load-bearing structural steel beam 4 also adopts the same structure as the vertical load-bearing structural steel column 2.

[0048] The fireproof method for the wallboard surface is as follows: 1. Wallboard surface treatment; 2. Mortar filling the groove; 3. Anti-cracking paper tape pasted at the joints; 4. Coating the interface agent; 5. Coating the first layer of fireproof coating with a thickness of 10 mm and leveling; 6. Hanging a fiberglass mesh on the entire wall; 7. Brushing the second layer of fireproof coating with a thickness of 10 mm and leveling; 8. Brushing the third layer of fireproof coating with a thickness of 6 mm and leveling.

[0049] Before the surface fireproof treatment of the wallboard, sound insulation treatment is first carried out, that is, a metal damping putty material is coated on the wallboard surface. To improve the sound insulation effect, the metal damping putty material of the present invention can also be coated on the surface of the steel skeleton. The metal damping putty material, by mass parts, includes the following components: 100 parts of metal powder with a particle size of 50 mesh - 150 mesh, 30 parts - 100 parts of acrylic high-elastic emulsion, 5 parts - 30 parts of cement, 0.5 parts - 2 parts of dispersant per thousand parts, 0.8 parts - 2 parts of leveling agent per thousand parts, 0.6 parts - 2 parts of defoaming agent per thousand parts and 0.6 parts - 2 parts of thickener per thousand parts.

[0050] The metal powder of the present invention is iron powder with a particle size of 50 - 150 mesh, and the cement is selected from Portland cement.

[0051] The acrylic high-elastic emulsion of the present invention can be produced by Wanhua Chemical Group Co., Ltd. 8016 High-performance elastic emulsion.

[0052] Based on the mass law and the design principle that flexible connectors contribute to kinetic energy conversion, the present invention optimizes the formula by using metal powders and flexible connectors; the sound insulation amount follows the mass law principle. The greater the unit mass per unit area of the sound insulation material, the greater the sound insulation amount, and the mass per unit area is proportional to the sound insulation amount. By using metal powders, the mass per unit area is increased to improve the sound insulation performance; acrylic high-elastic emulsion is used, which is a viscoelastic material with high internal resistance. When sound waves are transmitted to the putty surface, it produces a damping effect, converting part of the vibration energy into heat energy, thereby reducing vibration and noise; a dispersant is used to ensure that the particles in the putty remain dispersed and stable; a leveling agent is used to reduce the surface tension of the putty, improving its leveling property and uniformity; an antifoaming agent is used to inhibit the generation of foam in the putty; a thickening agent is used to increase the viscosity of the putty, so that the putty maintains a uniform and stable suspension state or emulsion state, or forms a gel; the above comprehensively forms the metal damping putty material of the present invention, which can be applied to uneven walls and special-shaped walls, and can also be applied to multi-layer composites to make metal sound insulation boards, having sound insulation and fire prevention effects, and even a relatively thin material can achieve good sound insulation effects. The formula list is as follows:

[0053] Serial number Raw material Dosage 1 Metal powder, 50 - 150 mesh 100 parts 2 Acrylic high - elastic emulsion 30 - 100 parts 3 Cement 5 - 30 parts 4 Dispersant 0.5‰ - 2% 5 Leveling agent 0.8‰ - 2% 6 Defoaming agent 0.6‰ - 2% 7 Thickening agent 0.6‰ - 2%

[0054] The first component of the metal damping putty material of the present invention includes: 100 parts of metal powder with a particle size of 50 mesh, 100 parts of acrylic high-elastic emulsion, 30 parts of cement, 0.5 parts per thousand of dispersant, 2 parts per hundred of leveling agent, 2 parts per hundred of antifoaming agent, and 2 parts per hundred of thickening agent.

[0055] The second component of the metal damping putty material of the present invention includes: 100 parts of metal powder with a particle size of 100 mesh, 100 parts of acrylic high-elastic emulsion, 5 parts of cement, 2 parts per hundred of dispersant, 0.8 parts per thousand of leveling agent, 0.6 parts per thousand of antifoaming agent, and 0.6 parts per thousand of thickening agent.

[0056] The third component of the metal damping putty material of the present invention includes: 100 parts of metal powder with a particle size of 80 mesh, 30 parts of acrylic high-elastic emulsion, 30 parts of cement, 2 parts per hundred of dispersant, 0.8 parts per thousand of leveling agent, 0.6 parts per thousand of antifoaming agent, and 0.6 parts per thousand of thickening agent.

[0057] After testing, the metal damping putty material of the first component above has excellent sound insulation performance. Coating 3 mm thick on both sides of the lightweight wall can increase the sound insulation by 2 decibels. The metal damping putty material of the second component above has excellent sound insulation performance. Coating 4 mm thick on both sides of the lightweight wall can increase the sound insulation by 2 decibels. The metal damping putty material of the third component above has excellent sound insulation performance. Coating 3 mm thick on both sides of the lightweight wall can increase the sound insulation by 1 decibel. Since the technical difficulty of sound insulation increases exponentially for each additional decibel when the sound insulation exceeds 50 decibels, the metal damping putty material of the present invention can significantly improve the sound insulation performance when the sound insulation exceeds 50 decibels, and the construction is convenient. Through sound insulation experiment testing, a sound insulation level of 55 db can be achieved.

[0058] The construction method of the fireproof and sound-insulating wallboard structure system of the present invention is as follows:

[0059] 1. Deepening design of the steel section skeleton (steel column and steel beam components): By analyzing the force transmission path of the composite structure system as wallboard → steel beam → steel column → structural concrete, based on relevant code standards such as "Technical Specification for Lightweight Slab Partition Walls in Buildings" and "Steel Structure Design Standard", and referring to the secondary structure deepening design drawings of the original designed masonry walls, the steel beams and steel columns are reasonably arranged and deepened. Among them, the arrangement of steel beams is as follows: One steel beam is set every 3 m for walls with a height of less than 6 m; one steel beam is set every 2.71 m for walls with a height of more than 6 m. The arrangement of steel columns is as follows: within the range of wall height from 6 to 10 m, the spacing of structural columns is not greater than 3.6 m; for walls with a height of more than 10 m, the spacing of structural columns is not greater than 3 m. Structural columns are set on both sides of the door opening, and suspension columns are set above the door opening, with the spacing of suspension columns not greater than 1.8 m. According to the selection of commonly used materials in the project, H-shaped steel columns are used for the column of the steel section skeleton support system, and H-shaped steel beams or I-shaped steel beams are used for the beams. The cross-sectional dimensions of the steel sections are determined by calculation, and stiffening plates of the same specification are used for strengthening.

[0060] 2. Deepening design of precast lightweight partition wallboards: The precast lightweight partition wallboard components are divided into reinforced ceramsite polymer hollow strip plates and solid composite precast large plates. To achieve rapid installation and ensure the safety of a large number of pipeline openings at the top, reinforced ceramsite polymer hollow strip plates are used for walls with a height of 6 m and below; solid composite precast large plates are used for walls with a height of more than 6 m. At the same time, to improve the sound insulation effect and reduce the weight of the precast large plates, they are designed as double-layer precast large plates.

[0061] 3. Deepening design of opening reinforcement joints: According to the "Technical Specification for Lightweight Slab Partition Walls in Buildings" and combined with past construction experience and research, small openings with cutting sizes not exceeding the limit do not need to be reinforced and are formed in one go during the construction process. For large openings exceeding the size limit, a No. 12 I-shaped steel is used to form a square steel sleeve or a circular steel sleeve for reinforcement. The size limits for openings are as follows:

[0062]

[0063]

[0064] 4. Detailed design drawing: Through safety checking by modeling with building structure analysis and design software, ensure that the entire structural system meets the quality and safety requirements. Through BIM-assisted detailed design, establish a BIM model to form a library of families. Combine with the actual construction drawings of the project (including architectural, structural, mechanical and electrical, decoration drawings, etc.) to generate detailed design drawings of precast lightweight partition walls with large-space steel skeleton. After the detailed drawings are confirmed by all parties, they shall be used as the basis for subsequent factory processing, on-site construction and final settlement.

[0065] 5. Factory processing: According to the detailed drawings and on-site construction progress arrangement, recruit and purchase qualified manufacturers in advance, and formulate production and processing plans for precast components such as precast lightweight wall panels, steel columns, and steel beams with the selected manufacturers. Organize production and processing according to the plan, and transport them to the construction site for installation in a timely manner. Among them, the precast lightweight wall panels are divided into two types: precast large panels of polymer reinforced ceramsite concrete and precast hollow panels of polymer reinforced ceramsite concrete; the H-shaped steel beams at the curved walls are rolled into the designed arc shape by a plate rolling machine in the factory, and the locally damaged parts are formed by repair welding.

[0066] 6. Installation of steel skeleton: (1) Installation of steel columns: Within the range of wall height from 0 to 9m according to the construction detailed drawings, the spacing of steel columns shall not be greater than 3600mm; for walls with a height of 10m and above, the spacing of steel columns shall not be greater than 3000mm. Steel columns shall be added at the corner positions, and door frames shall be added at the fireproof rolling shutter doors. The bottom steel plates of the steel columns are reserved inside the anti-camber, and the top steel plates of the steel columns are fixed with high-strength expansion bolts. The I-beams of the steel columns shall be fully welded to their top and bottom steel plates. (2) Installation of steel beams: One steel beam shall be arranged when the wall height exceeds 3.0 meters, and door frames shall be added at the fireproof rolling shutter doors. The steel beams and steel columns shall be fully welded. (3) Anti-corrosion repair of steel structure: Carefully check the anti-corrosion weak links such as corners, side seams, horizontal laps, vertical laps, and high-strength expansion bolt fasteners to ensure that all side seams and corners are in place. For those that are not in place, local painting shall be carried out.

[0067] 7. Installation of precast lightweight partition wall panels: (1) Installation of connectors: At the connection between the reinforced ceramsite polymer hollow strip board of the wall panel and the concrete structure surface, U-shaped steel plates are installed in advance with a nail gun. At the connection with the steel skeleton, the U-shaped steel plates are first installed on the reinforced ceramsite polymer hollow strip board. After the reinforced ceramsite polymer hollow strip board is installed into the steel skeleton, the U-shaped steel plates are welded and fixed to the steel. The steel connectors are welded to the solid composite precast large board of the wall panel in advance. After the solid composite precast large board is installed into the steel skeleton, the steel connectors are welded and fixed to the steel. (2) Hoisting of precast lightweight partition wall panels: Use a scissor lift as an operating platform, and use a hoist or lifting installation machine to hoist the wall panels. When the wall components are lifted, they are vertical and stable, and the angle between the sling and the horizontal line is not less than 60°. Slowly position them when they drop to 0.2 meters above the installation position. (3) Alignment and fixation: Before positioning, set wooden wedges or steel strip pads on the floor surface or the top surface of the steel beam. Make the wall panel stable through the pads, and use a crowbar to adjust the position and control the elevation by the thickness of the pads. At the same time, check and finely adjust the position and verticality of the board to make it coincide with the pre-drawn control line. (4) Sealing and filling: The gaps between the wall and the surrounding structures are filled and flattened with M10 high-strength polymer mortar. Before installing the boards, evenly apply the bonding material on the tongue-and-groove surface. When installing, directly align the board tenons with the mortises and splice them tightly. At the same time, further adjust the verticality and flatness of the wall surface. After passing the inspection, fix it, and then clean the board surface immediately. (5) Continuous installation: Repeat the above procedures to install the precast lightweight partition wall panels block by block and layer by layer. Among them, the curved wall is spliced by using precast hollow straight boards to replace the curve. Two days after the installation of the first layer of wall panels, install the second layer of wall panels until the installation is completed.

[0068] 8. Grooving and Holing Construction: (1) Grooving and Holing: Grooving and holing construction can only be carried out 7 days after the installation of wall panels is completed. For grooving of concealed pipelines, special machinery is used for cutting, and then chisels are used for chiseling to avoid excessive knocking that may cause damage to the wall panels and leave potential cracking hazards. When grooving horizontally on the wall panels, the grooving depth should not be greater than 3 / 5 of the wall thickness. It is strictly prohibited to open horizontal grooves at the same position on both sides of the wall, and the spacing between them should be staggered by no less than 150 mm. When grooving vertically on the wall panels, the pipeline position should not be set at the vertical joint between the wall panels. First, a small groove should be opened on the wall to find the core hole of the hollow wall panel, and the penetrated core hole can be directly used as the pipeline groove. For the construction of holes for pipeline passing through the wall, special machinery is used to cut the outline of the hole according to the marked lines. Generally, an electric circular saw is used for cutting square holes, and a concrete drilling machine is used for circular holes. Then, a hammer or a light impact drill is used to gently knock out the wall materials inside the hole. For small holes in the detailed drawing that do not exceed the limit value, they are directly cut and formed at one time. For large holes that exceed the limit value, 12# I-beams are used for reinforcement at the hole. During the reinforcement construction, I-beams are used to temporarily reinforce the hole at intervals of 600 mm. After the hole is opened, a sectional welding reinforcement process is adopted. After the overall reinforcement is completed, the temporary I-beams inside the hole are removed. (2) Pipeline Installation: After grooving and holing are completed, it is handed over to the mechanical and electrical installation unit in a timely manner for pipeline installation. (3) Backfilling with Special Mortar: After the pipeline installation is completed, the joints are backfilled in a timely manner. Before backfilling the wire groove, the pipelines in the groove are fixed first, and the dust in the groove is cleaned and moistened with water. Then, the groove is backfilled with special mortar in one or two times according to the depth and leveled. When backfilling the pipe hole, for wide void parts, it is advisable to first cut the wall panels into appropriate small pieces and fill them with mortar bonded, leaving a 10 - 15 mm surface layer to be backfilled and leveled with special mortar.

[0069] 9. Anti-cracking Treatment: After the joints between the wall panels and the surrounding main structures, profiled steels, and between the panels are filled tightly with special mortar, anti-cracking treatment is carried out by pasting fiberglass mesh belts on the surface of the mortar and applying a combination of an anti-cracking putty material composed of a putty powder and a high-elastic fiber putty.

[0070] 10. Apply a metal damping putty material on the surface of the precast lightweight partition wall panels.

[0071] 11. Fire Protection Treatment: Before the construction of fireproof coatings, the dust, grease, etc. on the base surface are cleaned. After the Sika fireproof materials are prepared according to the instructions, they are applied in layers with a roller, and the layer thickness is controlled at about 10 mm. After the curing of the fireproof coatings is completed, the subsequent decoration construction can be carried out.

[0072] The present invention optimizes and disassembles the secondary structure partition wall system, analyzes and deeply designs the force transmission path, connection nodes, and opening reinforcement nodes of the structure system, and conducts safety calculations through modeling with building structure analysis and design software to ensure that the entire structure system meets the quality and safety requirements. By using BIM technology to establish a model to assist in the deepening design, generate deepening drawings and processing lists, and then prefabricating in the factory to avoid plastering, wet operations are avoided. Mechanized hoisting operations on-site do not require the erection of operating scaffolds, reducing the construction safety risks and the difficulty of green and civilized construction, improving the construction efficiency, and realizing high-quality and rapid construction of large-space steel skeleton precast lightweight partition walls.

[0073] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A metal damping putty material, characterized in that, By mass parts, the metal damping putty material comprises the following components: 100 parts of metal powder, 30 parts - 100 parts of acrylic high-elastic emulsion, 5 parts - 30 parts of cement, 0.5‰ parts - 2% parts of dispersant, 0.8‰ parts - 2% parts of leveling agent, 0.6‰ parts - 2% parts of defoaming agent, and 0.6‰ parts - 2% parts of thickening agent.

2. The metal damping putty material according to claim 1, wherein The particle size of the metal powder is 50 mesh - 150 mesh.

3. A fireproof and sound-insulating wall panel structure system, characterized in that, It includes a steel skeleton and precast lightweight partition boards; the steel skeleton includes vertical load-bearing structural steel columns and horizontal load-bearing structural steel beams; the precast lightweight partition boards are filled and installed in the space surrounded by the vertical load-bearing structural steel columns and the horizontal load-bearing structural steel beams; the surface of the precast lightweight partition boards is successively coated with the metal damping putty material and fireproof coating; the metal damping putty material comprises the following components: 100 parts of metal powder, 30 parts - 100 parts of acrylic high-elastic emulsion, 5 parts - 30 parts of cement, 0.5‰ parts - 2% parts of dispersant, 0.8‰ parts - 2% parts of leveling agent, 0.6‰ parts - 2% parts of defoaming agent, and 0.6‰ parts - 2% parts of thickening agent.

4. The fireproof and sound-insulating wall panel structure system according to claim 3, characterized in that, The precast lightweight partition boards include reinforced ceramsite polymer hollow strip boards and solid composite precast large boards.

5. The fireproof and sound-insulating wallboard structure system according to claim 4, characterized in that, The reinforced ceramsite polymer hollow strip boards are respectively connected to the vertical load-bearing structural steel columns and the horizontal load-bearing structural steel beams through U-shaped steel plate clips; high-strength polymer mortar is filled in the gaps between the reinforced ceramsite polymer hollow strip boards and the vertical load-bearing structural steel columns and the horizontal load-bearing structural steel beams.

6. The fireproof and sound-insulating wallboard structure system according to claim 4, wherein Adjacent two reinforced ceramsite polymer hollow strip boards are spliced through grooves, and high-strength polymer mortar is filled in the grooves; an anti-cracking paper tape is pasted at the splicing joint of adjacent two reinforced ceramsite polymer hollow strip boards.

7. The fireproof and sound-insulating wallboard structure system according to claim 4, characterized in that, The solid composite precast large boards are respectively connected to the vertical load-bearing structural steel columns and the horizontal load-bearing structural steel beams through steel connectors; high-strength polymer mortar is filled in the gaps between the solid composite precast large boards and the vertical load-bearing structural steel columns and the horizontal load-bearing structural steel beams.

8. The fireproof and sound-insulating wall panel structure system according to claim 4, wherein Adjacent two solid composite precast large boards are spliced through rabbets; high-strength polymer mortar is filled in the rabbets.

9. The fireproof and sound-insulating wall panel structure system according to claim 3, wherein, The vertical load-bearing structural steel columns include I-beams, steel meshes and stiffening plates; the I-beams include webs and flange plates arranged at both ends of the webs; the stiffening plates are arranged at intervals on both sides of the webs; both ends of the stiffening plates are respectively connected to the two flange plates; the steel meshes are arranged at intervals between the stiffening plates and the webs; high-strength polymer mortar wrapping the steel meshes is filled between the stiffening plates and the webs; fireproof coating is arranged on the plate surface of the stiffening plate facing away from the web.

10. A construction method for a fireproof and sound-insulating wall panel structure system, characterized in that, It includes the following steps: Deepening design of the steel skeleton; Deepening design of the precast lightweight partition boards; wherein, reinforced ceramsite polymer hollow strip boards are adopted for walls with a height of 6 meters and below, and solid composite precast large boards are adopted for walls with a height of more than 6 meters; Installation of the steel skeleton; Installation of the precast lightweight partition boards; Construction of grooving and hole opening on the precast lightweight partition boards; For crack resistance treatment, the gaps between the precast lightweight partition boards or between the precast lightweight partition boards and the steel skeleton are filled tightly with high-strength polymer mortar, and a crack-resistant putty material composed of a fiberglass mesh belt pasted on the surface of the high-strength polymer mortar and putty powder and high-elastic fiber putty is applied for crack prevention treatment; Apply a metal damping putty material on the surface of the precast lightweight partition board; Apply a fireproof coating on the surface of the precast lightweight partition board.

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