Point paving type floating floor construction method

Abstract

The construction method comprises the steps of base layer treatment, frame isolating bar installation, vibration reduction and sound insulation floating construction, waterproof layer construction, steel wire mesh laying, equipment foundation reserving and floating platform pouring. The construction method comprises the steps of base layer treatment, frame isolating bar installation, vibration reduction and sound insulation floating construction, waterproof layer construction, steel wire mesh laying, equipment foundation reserving and floating platform pouring. According to the construction method, the floating platform can be separated from the building main body by installing the frame isolating bars, the floating platform can play the maximum acoustic effect, the wood formwork and the flexible waterproof film are laid on the lower portion of the floating platform to serve as the waterproof layer, the construction quality is good, the sound insulation, noise insulation, waterproof and dustproof functions of the concrete structure floor slab are effectively improved, and the construction cost is reduced. And the rock wool board is laid on the lower portion of the floating platform, and the lower portion of the floating platform is filled with the elastic vibration reduction blocks, so that the vibration frequency generated during equipment operation is effectively reduced, and the vibration reduction effect is obvious.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a point-paving floating floor construction method. Background Art

[0002] Super high-rise buildings primarily provide a more comfortable and quieter work and accommodation environment for office workers and hotel guests. Compared to traditional integrated towers, super high-rise buildings have extremely high acoustic requirements. In the construction field, the equipment layer of super high-rise buildings is usually located in the middle or top of the building. The vibration of the equipment is transmitted to the building structure through the bottom of the equipment and through the pipes or cables connected to the equipment. This vibration propagation process also generates noise. To address the vibration and noise generated by the operation of the equipment room, the following common sound insulation construction methods are currently used: adding sound insulation structures such as soundproof walls and soundproof ceilings to the existing building structure, or constructing a concrete foundation on the building floor to increase the weight and rigidity of the foundation, thereby reducing the impact of vibration on the floor.

[0003] The existing sound insulation construction method has the following shortcomings:

[0004] 1) Concrete foundation is constructed on the floor slab. This method has limited effect on isolating low-frequency vibrations, and its vibration reduction and sound insulation effects are not obvious.

[0005] 2) Adding soundproof walls and soundproof ceilings to existing building structures is difficult and costly to construct, and may affect the stability and safety of the building structure. Summary of the Invention

[0006] In view of this, the present invention aims to solve the technical problems existing in the prior art. The present invention provides a construction method which can separate the floating platform from the main building by installing a frame isolation strip, so that the floating platform can play a maximum acoustic effect, and lays a wooden formwork and a flexible waterproof film on the lower part of the floating platform as a waterproof layer, with good construction quality, effectively improving the sound insulation, insulation, waterproof and dustproof functions of the concrete structure floor, reducing the risk of moisture, and laying a rock wool board and a combination of elastic vibration damping blocks on the lower part of the floating platform, effectively reducing the vibration frequency generated during the operation of the equipment, and having obvious and good vibration reduction effects.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] A point-laying floating floor construction method includes the following steps:

[0009] Step 1) Base treatment: Clean the base of the concrete structure floor, ensure that the working surface of the concrete structure floor is clean and dry, and grind the working surface of the concrete structure floor to form a leveling layer;

[0010] Step 2) Installing the border strips: Build the retaining wall around the edge to form the area where the floating platform is to be built. Lay the border strips around the floating platform to separate the floating platform from the main building. Lay the border strips close to the retaining wall edge.

[0011] Step 3) Construction of floating vibration-damping and sound-insulating structures: a layer of rock wool board is laid on the leveling layer of the concrete structure floor, a plurality of fixing holes are opened on the rock wool board, and the fixing holes are distributed in a matrix on the rock wool board, and elastic vibration-damping blocks are fixed to the fixing holes of the rock wool board;

[0012] Step 4) Construction of waterproof layer: Lay several wooden formworks flat on top of the elastic vibration damping blocks and rock wool boards, and fully cover the finished surface of the wooden formworks with a flexible waterproof film;

[0013] Step 5) Laying of wire mesh: Laying the wire mesh in the middle of the reinforced concrete structure floor;

[0014] Step 6) Equipment foundation reservation: Before pouring the floating platform, plant the roots of the φ10 foundation steel bars in the poured floating platform and form a good electrical circuit with the building's lightning protection down conductor. The upper part of the foundation steel bars can be poured in conjunction with the later equipment foundation;

[0015] Step 7) Floating platform pouring: first water the foundation formwork to moisten it, remove debris and accumulated water within the foundation formwork range and then seal it, pour the reinforced concrete foundation to form a floating platform for installing the equipment.

[0016] Furthermore, in step 4), the construction of the waterproof layer specifically includes the following steps:

[0017] Step 41) Lay several wooden templates on the elastic vibration damping blocks and rock wool boards. Use a manual nail gun and nails to connect two adjacent wooden templates. Use transparent packaging tape to seal the joints between the wooden templates.

[0018] Step 42) Spread a 1.5mm thick flexible waterproof film on the finished surface of the wooden formwork, with an overlap width of not less than 100mm.

[0019] Furthermore, in step 2), the frame isolation strip adopts an EVA frame isolation strip with a height of 165 mm and a thickness of 15 mm. The frame isolation strip is first arranged along the entire length of the retaining wall edge, and then the frame isolation strip is fixed to the retaining wall edge with universal glue, and finally the edge of the wall is sealed with acoustic sealant.

[0020] Furthermore, in step 3), after the rock wool board is laid, it is fixed with fixing parts. After the rock wool board is laid, according to the distribution diagram of the elastic vibration damping block, the rock wool board at the installation position of the vibration damping block is opened to reserve fixing holes so that the elastic vibration damping block can be installed later. The laid rock wool board uses 25mm thick rock wool with Class A fireproof and non-combustible performance.

[0021] Furthermore, in step 3), the size of the elastic vibration damping blocks filled on the rock wool board is 50×50×50mm, the laying density spacing of the elastic vibration damping blocks is 600×600mm, the elastic vibration damping blocks are laid horizontally and vertically, and the height of the rock wool board is flush with the elastic vibration damping blocks.

[0022] Furthermore, in step 5), the laying of the steel mesh includes the following process:

[0023] Step 51) After the floating platform is constructed, a steel mesh is laid 50 mm in the middle of the 100 mm reinforced concrete floor slab. The steel mesh is laid using double-layer bidirectional steel bars.

[0024] Step 52) Before laying the wire mesh, clean the ground, pop out the component center line, edge line and template control line, and pop out the position line of each steel bar of the plate on the ground;

[0025] Step 53) The protective layer is laid with pads at a spacing of 600 mm in a plum blossom pattern.

[0026] Step 54) Use 22# iron wire to tie the double-layer bidirectional steel bars together and tighten them with steel bar hooks.

[0027] Furthermore, in step 7), the floating platform casting includes the following process:

[0028] Step 71) Before pouring concrete, the foundation formwork must be moistened with water, and debris and accumulated water within the foundation formwork must be removed before sealing;

[0029] Step 72) using C25 reinforced concrete to cast a reinforced concrete foundation with a thickness of 100 mm, the concrete is poured by pumping, and the pouring part is manually fed into the foundation formwork;

[0030] Step 73) The vibrator should be vibrated according to the pouring sequence and can be carried out back and forth perpendicular to the pouring direction.

[0031] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0032] The construction method of the present invention includes base treatment, installation of frame isolation strips, construction of vibration-damping and sound-insulating floating structures, construction of a waterproof layer, laying of steel mesh, reservation of equipment foundations, and casting of floating platforms. The construction method of the present invention can separate the floating platform from the main building structure by installing frame isolation strips, allowing the floating platform to maximize its acoustic effect. Wooden formwork and a flexible waterproof film are laid on the lower part of the floating platform as a waterproof layer, resulting in high-quality construction and effectively improving the sound insulation, insulation, waterproofing, and dustproofing functions of the concrete structure floor, while reducing the risk of moisture. A combination of rock wool boards and elastic vibration-damping blocks is also laid on the lower part of the floating platform to effectively reduce the vibration frequency generated during equipment operation, achieving significant and effective vibration reduction effects.

[0033] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following is a detailed description in combination with the preferred embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Schematic diagram of the process of the point-laying floating floor construction method of the present invention;

[0035] Figure 2 It is a structural schematic diagram of the point-paved floating floor of the present invention.

[0036] In the figure: concrete structure floor 1, retaining wall edge 2, frame isolation strip 3, acoustic sealant 31, rock wool board 4, elastic vibration damping block 5, waterproof layer 6, reinforced concrete foundation 7, Foundation steel bars 8, equipment foundation 9. DETAILED DESCRIPTION

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings, which form a part of this specification and illustrate the principles of the present invention through examples. Other aspects, features and advantages of the present invention will become apparent from this detailed description. In the accompanying drawings, the same or similar parts are represented by the same reference numerals in different figures.

[0038] like Figure 1-Figure 2 As shown, the first embodiment of the present invention provides a point-laying floating floor construction method, which includes the following steps:

[0039] Step 1) Base treatment: Clean the base surface of the concrete structure floor 1, ensure that the working surface of the concrete structure floor 1 is clean and dry, and grind the working surface of the concrete structure floor 1 to form a leveling layer; the leveling layer is set to ensure the flatness of the surface of the concrete structure floor 1. The construction base surface of the floating floor should be solid, clean and flat. Excessive flatness deviation will cause uneven force on the elastic vibration damping blocks 5, rock wool boards 4, etc. laid in the future, affecting the acoustic effect;

[0040] Step 2) Installation of the frame isolation strips 3: Build the retaining wall edge 2 to form the floating platform area to be built, and lay the frame isolation strips 3 around the floating platform to separate the floating platform from the main building. The frame isolation strips 3 are laid close to the retaining wall edge 2. Installing the frame isolation strips 3 around the floating platform can separate the floating platform from the main building, so that the floating platform can play the maximum acoustic effect. In the specific implementation, the built retaining wall edge 2 can be a brick wall edge, a concrete edge, or a channel steel edge. In this embodiment, the preferred embodiment is a brick wall edge. The retaining wall edge 2 can be built into a hollow rectangular structure, a ring structure, or other irregular-shaped structure on the concrete structure floor 1 according to the design requirements of the drawing. The retaining wall edge 2 is perpendicular to the concrete structure floor 1.

[0041] Step 3) Construction of floating vibration-damping and sound-insulating structures: a layer of rock wool board 4 is laid on the leveling layer of the concrete structure floor 1, a plurality of fixing holes are opened on the rock wool board 4, and the fixing holes are distributed in a matrix on the rock wool board 4, and elastic vibration-damping blocks 5 are fixed to the fixing holes of the rock wool board 4;

[0042] Step 4) Construction of waterproof layer 6: Lay several wooden templates flat on top of the elastic vibration damping blocks 5 and rock wool boards 4, and fully cover the finished surface of the wooden templates with a flexible waterproof film;

[0043] Step 5) Laying of wire mesh: When reinforcing the concrete structure floor 1, first partially excavate the concrete structure surface to expose the steel bars to form a micro foundation pit. The structural steel bars have good lightning protection and lead-down function. Its main purpose is to make the reserved The foundation steel bar 8 and the structural steel bar form a good electrical grounding loop. The root of the φ10 foundation steel bar 8 is planted in the poured floating platform so that the foundation pit steel bar can be connected to the φ10 foundation steel bar 8 embedded in the concrete. The upper part of the foundation steel bar 8 can be poured in conjunction with the later equipment foundation 9 so that the connection is more secure when the later equipment foundation 9 is poured;

[0044] Step 7) Floating platform pouring: first water the foundation template to moisten it, remove debris and accumulated water within the foundation template range and then seal it, pour the reinforced concrete foundation 7 to form a floating platform for installing the equipment.

[0045] The construction method of the present invention includes installing a frame isolation strip 3, which can separate the floating platform from the main body of the building, so that the floating platform can play a maximum acoustic effect. The present invention forms an independent sound insulation, isolation and waterproof layer 6 structure through the laid rock wool board 4, elastic vibration damping block 5, wooden formwork and flexible waterproof film. When the equipment is running, the propagation of noise is reduced by sound absorption, reflection and scattering, effectively reducing structural vibration and achieving the effect of sound insulation and vibration reduction.

[0046] In the embodiment of the present invention, in step 4), the construction of the waterproof layer 6 specifically includes the following steps:

[0047] Step 41) Lay several wooden templates on the elastic vibration damping blocks 5 and the rock wool board 4. The thickness of the wooden templates is 15 mm. The adjacent wooden templates are firmly connected using a manual nail gun and nails. The joints between the wooden templates are sealed with transparent packaging tape.

[0048] Step 42) A flexible waterproof film of 1.5 mm thickness is fully laid on the finished surface of the wooden formwork, with a full overlap width of not less than 100 mm, and the wall and column edges are folded up by not less than 30 mm beyond the finished surface of the floating platform. After the waterproof film is laid, an overall inspection is carried out to check whether there are leaks or other defects, and timely repairs and adjustments are made. The present invention lays wooden formwork rubber sheets on the elastic vibration damping blocks 5 and the rock wool boards 4 to provide a solid and flat base layer when casting the floating platform. During installation, transparent packaging tape is used to fix the joints between the wooden formworks, and a flexible waterproof film is fully laid on the finished surface of the wooden formwork to provide a complete and enclosed working surface when casting the floating platform. The present invention uses wooden formwork instead of steel plate laying, which is convenient to construct, safe and reliable, and is beneficial to environmental protection and energy saving, and reduces construction costs.

[0049] In specific implementation, in step 2), the frame isolation strips 3 are EVA frame isolation strips with a height of 165 mm and a thickness of 15 mm. The frame isolation strips 3 are first arranged along the entire length of the retaining wall edge 2, then fixed to the retaining wall edge 2 with multi-purpose adhesive. Finally, the edges are sealed with acoustic sealant 31 at the wall edge. The installation of the frame isolation strips 3 effectively ensures that the completed floating platform has no hard connection with the main building.

[0050] In an embodiment of the present invention, in step 3), after the rock wool board 4 is laid, it is fixed with fixing parts to ensure that the connection between the rock wool boards 4 is tight and reliable. After the rock wool board 4 is laid, according to the distribution map of the elastic vibration damping block 5, the rock wool board 4 at the installation position of the vibration damping block size is drilled to reserve fixing holes so that the elastic vibration damping block 5 can be installed later. The laid rock wool board 4 adopts 25mm thick rock wool with Class A fireproof and non-combustible performance. The elastic vibration damping block 5 filled on the rock wool board 4 has a size of 50×50×50mm, and the laying density spacing of the elastic vibration damping block 5 is 600×600mm. The elastic vibration damping block 5 is laid horizontally and vertically, and the height of the rock wool board 4 is flush with the elastic vibration damping block 5. In specific implementation, the elastic vibration damping block 5 of the present invention uses FarratISOMAT NR62 pure natural rubber elastic vibration damping block 5 of Farrat, UK. A combination of rock wool boards 4 and elastic vibration damping blocks 5 is laid at the bottom of the floating platform, which can effectively ensure that the elastic vibration damping blocks 5 maintain a stable spacing before pouring the floating platform, prevent unintentional damage during the construction process, and maximize the construction quality of the elastic vibration damping blocks 5.

[0051] In specific implementation, in step 5), the laying of the steel mesh includes the following process:

[0052] Step 51) After the floating platform is constructed, a steel mesh is laid 50 mm in the middle of the 100 mm reinforced concrete floor slab. The steel mesh is laid using double-layer bidirectional steel bars. 8 mm diameter steel bars are used, with a spacing of 200 between adjacent steel bars. The steel mesh is arranged in two mutually perpendicular directions to form a grid, with two layers of steel mesh being arranged to form the steel mesh.

[0053] Step 52) Before laying the wire mesh, clean the ground, pop out the component center line, edge line and template control line, and pop out the position line of each steel bar of the plate on the ground;

[0054] Step 53) The protective layer is laid with pads at a spacing of 600 mm in a plum blossom pattern.

[0055] Step 54) Use 22# iron wire to tie the double-layer bidirectional steel bars together and tighten them with steel bar hooks.

[0056] In the specific implementation of the embodiment of the present invention, in step 7), the floating platform casting includes the following process:

[0057] Step 71) Before pouring concrete, the foundation formwork must be moistened with water, and debris and accumulated water within the foundation formwork must be removed before sealing;

[0058] Step 72) Use C25 reinforced concrete to cast a 100mm thick reinforced concrete foundation 7. The concrete is poured by pumping and the pouring area is manually fed into the foundation formwork. Severe unevenness is not allowed during the pouring process. In particular, the concrete should be poured symmetrically and evenly on both sides to prevent the foundation formwork from being squeezed or deformed.

[0059] Step 73) Vibration with a vibrator should be performed according to the pouring sequence. Vibration can be performed back and forth perpendicular to the pouring direction, with insertion points aligned and moved point by point. This should be done sequentially, without missing any points, to achieve uniform compaction and avoid gaps and cracks. Concrete needs to be cured promptly after pouring. Cover the concrete 24 hours later. After covering, water and cure for 8 days after covering. This allows the concrete to fully harden and dry to avoid cracking and deformation.

[0060] Compared with the prior art, the technical solution disclosed in the above embodiment has the following beneficial effects:

[0061] In the above embodiment, the floating platform is separated from the structural floor through the construction method of the present invention, so that the vibration of the equipment is isolated on the floating platform, and wooden formwork and flexible waterproof film are laid on the lower part of the floating platform as a waterproof layer 6, with good construction quality and excellent waterproof performance, effectively improving the sound insulation, insulation, waterproof and dustproof functions of the concrete structural floor 1, and reducing the risk of moisture. A rock wool board 4 and a combination of elastic vibration damping blocks 5 are also laid on the lower part of the floating platform, which effectively reduces the vibration frequency generated by the equipment during operation and has a good vibration reduction effect. The combined construction technology of vibration reduction + sound insulation is adopted, and the noise reduction and vibration reduction performance is significant. It is not only simple to install and convenient to construct, but also saves construction costs, and has considerable prospects for promotion and application.

[0062] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A point-laying floating floor construction method, characterized by: The construction method includes the following processes: Step 1) Base treatment: Clean the base of the concrete structure floor, ensure that the working surface of the concrete structure floor is clean and dry, and grind the working surface of the concrete structure floor to form a leveling layer; Step 2) Installing the border strips: Build the retaining wall around the edge to form the area where the floating platform is to be built. Lay the border strips around the floating platform to separate the floating platform from the main building. Lay the border strips close to the retaining wall edge. Step 3) Construction of floating vibration-damping and sound-insulating structures: a layer of rock wool board is laid on the leveling layer of the concrete structure floor, a plurality of fixing holes are opened on the rock wool board, and the fixing holes are distributed in a matrix on the rock wool board, and elastic vibration-damping blocks are fixed to the fixing holes of the rock wool board; Step 4) Construction of waterproof layer: Lay several wooden formworks flat on top of the elastic vibration damping blocks and rock wool boards, and fully cover the finished surface of the wooden formworks with a flexible waterproof film; Step 5) Laying of wire mesh: Laying the wire mesh in the middle of the reinforced concrete structure floor; Step 6) Equipment foundation reservation: Before pouring the floating platform, plant the roots of the φ10 foundation steel bars in the poured floating platform and form a good electrical circuit with the building's lightning protection down conductor. The upper part of the φ10 foundation steel bars can be poured in conjunction with the later equipment foundation; Step 7) Floating platform pouring: first water the foundation formwork to moisten it, remove debris and accumulated water within the foundation formwork range and then seal it, pour the reinforced concrete foundation to form a floating platform for installing the equipment.

2. The point-laying floating floor construction method according to claim 1 is characterized in that: In step 4), the construction of the waterproof layer specifically includes the following steps: Step 41) Lay several wooden templates on the elastic vibration damping blocks and rock wool boards. Use a manual nail gun and nails to connect two adjacent wooden templates. Use transparent packaging tape to seal the joints between the wooden templates. Step 42) Spread a 1.5mm thick flexible waterproof film on the finished surface of the wooden formwork, with an overlap width of not less than 100mm.

3. The point-laying floating floor construction method according to claim 1 is characterized in that: In step 2), the frame isolation strip adopts an EVA frame isolation strip with a height of 165mm and a thickness of 15mm. The frame isolation strip is first arranged along the entire length of the retaining wall edge, and then the frame isolation strip is fixed to the retaining wall edge with universal glue, and finally sealed with acoustic sealant at the wall edge.

4. The point-laying floating floor construction method according to claim 1 is characterized in that: In step 3), after the rock wool board is laid, it is fixed with fixing parts. After the rock wool board is laid, according to the distribution map of the elastic vibration damping block, the rock wool board at the installation position of the vibration damping block is opened to reserve fixing holes so that the elastic vibration damping block can be installed later. The laid rock wool board uses 25mm thick rock wool with Class A fireproof and non-combustible performance.

5. The point-laying floating floor construction method according to claim 1 is characterized in that: In step 3), the size of the elastic vibration damping blocks filled on the rock wool board is 50×50×50mm, the laying density spacing of the elastic vibration damping blocks is 600×600mm, the elastic vibration damping blocks are laid horizontally and vertically, and the height of the rock wool board is flush with the elastic vibration damping blocks.

6. The point-laying floating floor construction method according to claim 1 is characterized in that: In step 5), the laying of the steel mesh includes the following processes: Step 51) After the floating platform is constructed, a steel mesh is laid 50 mm in the middle of the 100 mm reinforced concrete floor slab. The steel mesh is laid using double-layer bidirectional steel bars. Step 52) Before laying the wire mesh, clean the ground, pop out the component center line, edge line and template control line, and pop out the position line of each steel bar of the plate on the ground; Step 53) The protective layer is laid with pads at a spacing of 600 mm in a plum blossom pattern. Step 54) Use 22# iron wire to tie the double-layer bidirectional steel bars together and tighten them with steel bar hooks.

7. The point-laying floating floor construction method according to claim 1 is characterized in that: In step 7), the floating platform casting includes the following processes: Step 71) Before pouring concrete, the foundation formwork must be moistened with water, and debris and accumulated water within the foundation formwork must be removed before sealing; Step 72) using C25 reinforced concrete to cast a reinforced concrete foundation with a thickness of 100 mm, the concrete is poured by pumping, and the pouring part is manually fed into the foundation formwork; Step 73) The vibrator should be vibrated according to the pouring sequence and can be carried out back and forth perpendicular to the pouring direction.

Images