Construction method for shock-absorbing and sound-insulating floating foundation of large-scale equipment

Abstract

The invention discloses a large equipment shock absorption and sound insulation floating foundation construction method which comprises the following construction steps: S1, leveling a structural floor and paying off a foundation; S2, building a reverse ridge: building the reverse ridge: sealing and flattening the inner side, the outer side and the top surface of the reverse ridge, and arranging a reverse ridge waterproof layer; s3, shock-absorbing and sound-insulating floating construction: mounting rubber and plastic embossed plates: fully sticking the rubber and plastic embossed plates along the periphery of the reverse ridge; vibration isolation glue positioning: the vibration isolation glue is adhered to the leveling layer; sound-absorbing cotton laying: the sound-absorbing cotton is laid on the vibration isolation glue in a covering manner; s4, template construction is conducted, specifically, the templates are fully paved and flatly placed on the vibration isolation glue; s5, construction of a formwork waterproof layer, wherein the formwork waterproof layer is arranged on the surface of the formwork; according to the construction method, the floating foundation and the structural floor slab are isolated and separated, vibration of the equipment is isolated on the floating foundation, meanwhile, the lower portion of the floating foundation is filled with vibration isolation glue and sound absorption cotton, the side face of the floating foundation is pasted with a rubber and plastic embossed plate, and the sound insulation problem of the lower space is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a shock-absorbing and sound-insulating floating foundation construction method for large-scale equipment. Background Art

[0002] In modern buildings, especially theaters, hotels, business complexes, residences and other places, the standards for noise are getting higher and higher. Large equipment will generate a lot of noise and vibration during operation, which will not only affect the quality of life of surrounding residents, but also may damage the equipment itself and shorten its service life. Therefore, it is particularly important to use a shock-absorbing and sound-insulating floating foundation.

[0003] At present, the conventional construction method of the shock-absorbing and sound-insulating floating foundation construction method for large equipment is: the noise problem caused by the vibration of large equipment on the foundation floor has indeed always existed, and for spaces with high sound insulation requirements on the lower floor, such as banquet halls, conference rooms, etc., conventional processes often cannot meet the sound insulation requirements.

[0004] At present, the commonly used sound insulation measures are as follows:

[0005] Concrete foundation: Concrete foundation is constructed on the floor slab to increase the weight and rigidity of the foundation, thereby reducing the impact of vibration on the floor slab. However, this method has limited effect on isolating low-frequency vibrations.

[0006] Shock-absorbing springs: Shock-absorbing springs are added to the equipment to absorb and disperse vibration energy. However, the selection, arrangement and commissioning of shock-absorbing springs require precise calculations, and for large equipment, the bearing capacity and stability of shock-absorbing springs are also a major challenge.

[0007] There are problems with the sound insulation effect: conventional processes are often unable to completely isolate the low-frequency vibration and noise generated by large equipment, resulting in the lower space still being disturbed by a certain degree of noise; and the construction is difficult: adding sound insulation measures to the existing building structure, such as soundproof walls, soundproof ceilings, etc., is difficult to construct, costly, and may affect the stability and safety of the building structure.

[0008] Therefore, there is an urgent need for a large-scale equipment shock-absorbing and sound-insulating floating foundation construction method that can effectively solve the above-mentioned technical problems. Summary of the invention

[0009] In order to solve the above technical problems, the present invention provides a method for constructing a shock-absorbing and sound-insulating floating foundation for large equipment.

[0010] The invention provides a large-scale equipment shock-absorbing and sound-insulating floating foundation construction method that adopts the following technical solutions:

[0011] A large-scale equipment shock-absorbing and sound-insulating floating foundation construction method includes the following construction steps:

[0012] S1: Structural floor leveling and foundation layout:

[0013] Base surface treatment: Set a leveling layer on the structural floor;

[0014] Accurate layout: Mark the inner and outer edges of the floating foundation counter-slope on the leveling layer according to the design drawings;

[0015] S2: Anti-slope masonry:

[0016] Build the counter-ridge: build the counter-ridge along the inner and outer edges, seal and level the inner, outer and top surfaces of the counter-ridge, and set a waterproof layer for the counter-ridge;

[0017] S3: Shock-absorbing and sound-insulating floating construction:

[0018] Installation of rubber-plastic relief board: paste the rubber-plastic relief board all around the anti-ridge;

[0019] Vibration isolation glue positioning: Vibration isolation glue is bonded to the leveling layer;

[0020] Sound-absorbing cotton laying: Sound-absorbing cotton is laid on the vibration-isolating glue;

[0021] S4: Formwork construction: The formwork is fully laid flat on the vibration isolation glue;

[0022] S5: Formwork waterproof layer construction: set the formwork waterproof layer on the formwork surface;

[0023] S6: Concrete foundation construction: Pour the concrete foundation on the leveling layer to form a floating foundation for installing equipment.

[0024] Optionally, in S3, when determining the position of the vibration isolation glue, first lay out the lines, use an ink fountain to pop out the vertical and horizontal arrangement lines of the vibration isolation glue on the base layer, the intersection of the vertical and horizontal arrangement lines is the center point of the vibration isolation glue, and align the center of the vibration isolation glue with the vertical and horizontal intersection.

[0025] Optionally, in S5, the four sides of the template waterproof layer are turned up to the top of the anti-ridge and compacted.

[0026] Optionally, in S5, the formwork waterproofing layer is formed by applying all-purpose glue to the formwork and pasting petroleum asphalt paper-based felt, which is then turned up on all sides.

[0027] Optionally, in S6, pouring the concrete foundation includes the following steps:

[0028] Laying of double-layer bidirectional steel bars: Laying double-layer bidirectional steel bars in the leveling layer according to the design drawings;

[0029] Installation of horse stool reinforcement: Horse stool reinforcement is used to support the upper steel mesh of double-layer bidirectional steel bars. Horse stool reinforcement is set in both horizontal and vertical directions;

[0030] Concrete pouring: Concrete pouring is carried out, then the concrete surface is smoothed and then the concrete surface is calendered.

[0031] Optionally, in S6, after the concrete foundation strength reaches the standard, an elastic sealing layer is filled at the joint between the anti-sill and the floating floor slab.

[0032] Optionally, in S3, the sound-absorbing cotton is glass sound-absorbing cotton with aluminum foil. After the vibration-isolating glue is installed on the leveling layer, the glass sound-absorbing cotton with aluminum foil is spread flat on the vibration-isolating glue. A cross hole is made on the glass sound-absorbing cotton at the position of the vibration-isolating glue with a utility knife to expose the vibration-isolating glue, and the glass sound-absorbing cotton is spread on the floor to fill the gaps in the vibration-isolating glue.

[0033] Optionally, in S2, the counter-slope is constructed by brick wall, which is built by using M10 cement mortar, and the inner and outer sides and top surface of the brick wall are plastered by using plastering mortar.

[0034] Optionally, in S2, a counter-ridge waterproof layer is provided on the outer side of the counter-ridge, and a leveling waterproof layer is provided on the leveling layer.

[0035] In summary, the present invention includes at least one of the following beneficial technical effects: this construction method separates the floating foundation from the structural floor, so that the vibration of the equipment is isolated on the floating foundation. At the same time, the lower part of the floating foundation is filled with vibration isolation glue and sound-absorbing cotton, and the rubber-plastic relief plate is pasted on the side. Finally, the reinforced concrete foundation is poured, and the equipment is suspended above the foundation, which effectively reduces the sound insulation problem in the lower space. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0037] Explanation of the accompanying reference numerals: 1. Equipment; 2. Counter-ridge; 3. Rubber-plastic relief plate; 4. Vibration-damping rubber; 5. Template; 6. Petroleum asphalt paper-based felt; 7. Floating foundation; 8. Sound-absorbing cotton; 9. Counter-ridge waterproof layer; 10. Elastic sealing layer. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 The present invention is described in further detail.

[0039] The embodiment of the invention discloses a method for constructing a shock-absorbing and sound-insulating floating foundation for large-scale equipment.

[0040] Reference Figure 1 , a large equipment shock-absorbing and sound-insulating floating foundation construction method, comprising the following construction steps:

[0041] S1: Structural floor leveling and foundation layout:

[0042] Base surface treatment: Set a leveling layer on the structural floor;

[0043] Accurate layout: Mark the inner and outer edges of the floating foundation 7 and the anti-ridge 2 on the leveling layer according to the design drawings;

[0044] S2: Anti-slope 2 masonry:

[0045] Building the counter-ridge 2: building the counter-ridge 2 along the inner and outer edges, sealing and leveling the inner, outer and top surfaces of the counter-ridge 2, and setting a counter-ridge waterproof layer 9;

[0046] S3: Shock-absorbing and sound-insulating floating construction:

[0047] Installation of the rubber-plastic relief plate 3: affix the rubber-plastic relief plate 3 all around the anti-ridge 2;

[0048] Vibration isolation glue positioning: Vibration isolation glue is bonded to the leveling layer;

[0049] Sound-absorbing cotton 8 laying: the sound-absorbing cotton is laid on the vibration-isolating glue;

[0050] S4: Formwork 5 construction: Formwork 5 is fully laid flat on the vibration isolation glue;

[0051] S5: Construction of template 5 waterproof layer: Setting template 5 waterproof layer on the surface of template 5;

[0052] S6: Concrete foundation construction: pouring a concrete foundation on the leveling layer to form a floating foundation 7 for installing the equipment 1.

[0053] This construction method separates the floating foundation 7 from the structural floor slab, so that the vibration of the equipment 1 is isolated on the floating foundation 7. At the same time, the lower part of the floating foundation 7 is filled with vibration isolation glue and sound-absorbing cotton, and the rubber-plastic relief plate 3 is pasted on the side. Finally, the reinforced concrete foundation is poured, and the equipment 1 is suspended above the foundation, which effectively reduces the sound insulation problem of the lower space.

[0054] The steps for cleaning the floor and placing the foundation edge are as follows:

[0055] Floor cleaning:

[0056] First of all, the structural floor needs to be cleaned to ensure that there is no debris, dust, etc. on the floor so that subsequent construction can proceed smoothly.

[0057] Place the basic edge:

[0058] Next, according to the construction requirements, the inner and outer edges of the floating foundation 7 anti-ridge 2 are popped out on the floor with an ink fountain. This step is to clarify the position and size of the foundation anti-ridge 2 to ensure that the subsequent construction can be carried out accurately.

[0059] When cleaning the floor, carefully check the surface of the floor to ensure that no debris or dust is missed.

[0060] When laying out the foundation edge line, you should ensure that the ink line is clear and accurate so that construction workers can see and follow it clearly, which is of great significance to ensure the quality and progress of construction.

[0061] In S2: Structural surface leveling and counter-embankment 2 masonry:

[0062] Review drawings and set-out:

[0063] First of all, it is necessary to review the drawings and the actual on-site layout dimensions to ensure that the two are completely consistent and without error.

[0064] Laying down the counter-bump 2: After confirmation, start laying down the counter-bump 2 along the inner edge of the counter-bump 2. The counter-bump 2 is built with brick 24 walls, that is, standard bricks (size 240mm*115mm*53mm) are used for laying. During laying, use M10 cement mortar as the bonding material to ensure the firmness and stability of the laying.

[0065] The height of the counter-ridge 2 is set to 200 mm to meet the design requirements.

[0066] Surface treatment:

[0067] After the anti-embankment 2 is built, its inner and outer sides and top surface need to be plastered.

[0068] Use plastering mortar to ensure a smooth and flat surface, and improve the waterproof performance and aesthetics of the anti-ridge 2.

[0069] In S2, a counter-slope waterproof layer 9 is provided on the outer side of the counter-slope 2, and a leveling waterproof layer is provided on the leveling layer. In this embodiment, the counter-slope waterproof layer 9 and the leveling waterproof layer are both coated with waterproof coatings: JS polymer cement-based waterproof coatings are applied twice on the outer counter-slope 2 and the leveling layer with a height of 200 mm. The purpose of applying waterproof coatings is to prevent water vapor from entering, thereby destroying the sound insulation effect, and ensuring the use function and safety of the building.

[0070] After completing the above steps, the leveling of the structural surface and the construction of the counter-embankment 2 are completed, laying a solid foundation for subsequent construction work.

[0071] In S3, vibration isolation glue construction:

[0072] Site cleaning: First of all, you need to clean the site to ensure that there is no debris, dust, etc. in the construction area to provide a good foundation for subsequent construction.

[0073] Paste the rubber-plastic edging: Apply all-purpose glue all around, and then paste the 10mm thick rubber-plastic relief board 3 to enhance the vibration isolation effect and play a certain protective and decorative role.

[0074] Line positioning: Use an ink fountain to draw vertical and horizontal lines of the vibration isolation glue (specification 50mm*50mm*50mm) on the ground. The intersection of the vertical and horizontal lines is the center point of the vibration isolation glue, which is used to determine the exact position of the vibration isolation glue.

[0075] Install the vibration isolation glue: align the center of the vibration isolation glue with the vertical and horizontal intersections, and use a small amount of universal glue to stick the vibration isolation glue to fix its position. Note that the 4 holes of the vibration isolation glue should be arranged and pasted upwards to facilitate the subsequent connection with the sound-absorbing cotton.

[0076] Paste glass sound-absorbing cotton: After the vibration-isolating glue and the leveling layer are firmly bonded, lay the 25mm thick 48K glass sound-absorbing cotton with aluminum foil on the vibration-isolating glue. Note that the side with aluminum foil should face up.

[0077] Use a utility knife to make a cross-shaped hole on the glass sound-absorbing cotton to expose the vibration-isolating glue. This step is to ensure that the glass sound-absorbing cotton can be tightly combined with the vibration-isolating glue and fill the gaps in the vibration-isolating glue.

[0078] Laying glass sound-absorbing cotton: Finally, lay the glass sound-absorbing cotton on the floor, making sure it fits tightly with the vibration isolation glue and the floor without any gaps.

[0079] In S4, the construction sequence of template 5 and welding is as follows:

[0080] Template 5 construction:

[0081] Material preparation: Use a 2 mm thick steel template 5 and a steel plate of the same thickness to fully lay flat on the vibration isolation glue.

[0082] Sizing and cutting: The steel formwork 5 should be sized according to the foundation size and cut accurately to ensure a perfect fit with the foundation.

[0083] Laying method: Lay the cut steel formwork 5 flat on the installed vibration isolation glue to ensure that it is laid flat and without gaps.

[0084] Welding construction sequence:

[0085] Assembly of pairs:

[0086] Assemble the steel plates according to the basic dimensions.

[0087] Before assembly, the interface and the oil, rust, etc. within 20mm on both sides need to be polished until the metallic luster is exposed to ensure the welding quality.

[0088] Preheat:

[0089] For steel plates that require preheating before welding, preheating shall be carried out after the weld joint group inspection is passed.

[0090] The preheating range is no less than 100mm on both sides of the groove to reduce welding stress and prevent cracks.

[0091] welding:

[0092] Spot welding is adopted, with spot weld length of 50mm and spacing of 500mm.

[0093] When welding, weld from the middle to both sides and weld symmetrically to avoid weld concentration and reduce welding stress.

[0094] When butt welding, the angle must be correct, 45 to 70 degrees to the direction of the weld and 90 degrees to the plane of the thin plate.

[0095] During the welding process, if the positioning weld is found to be cracked or the weldment is deformed and the misalignment increases, welding should be stopped, repaired, and the positioning weld should be fixed firmly before continuing welding.

[0096] Weld slag cleaning and quality inspection:

[0097] After welding is completed, clean the welding slag in time to ensure that the weld surface is clean.

[0098] Carry out quality inspection and perform repair welding in time if there are quality problems such as incomplete welding, slag inclusion, etc.

[0099] Gap Filling:

[0100] After the steel plate is welded, check the joints between the steel plate and the rubber surround. If there are gaps, fill them tightly with 10mm thick rubber surround to ensure the sealing and stability of the overall structure.

[0101] When constructing the formwork 5 waterproof layer, set the formwork 5 waterproof layer on the surface of the formwork 5, use steel plate on the formwork 5, brush all-purpose glue on the steel plate and stick petroleum asphalt paper-based felt 6, which is turned up all around to prevent leakage during concrete pouring. The overlap length between the felts is ≥30mm to ensure waterproof airtightness.

[0102] Apply all-purpose glue to the steel plate and stick petroleum asphalt paper-based felt 6:

[0103] Apply all-purpose glue to the surface of template 5 to ensure that the linoleum can be firmly adhered.

[0104] Paste petroleum asphalt paper tire felt 6, this material has good waterproof performance and can effectively prevent leakage during concrete pouring.

[0105] The linoleum needs to be turned up on all sides to further enhance the waterproof effect and prevent leakage.

[0106] The overlap length requirement between the tarpaulin is ≥30mm, which is to ensure the waterproof airtightness and avoid water leakage due to insufficient overlap length.

[0107] In S6, pouring the concrete foundation includes the following steps:

[0108] Laying of double-layer bidirectional steel bars: Laying double-layer bidirectional steel bars in the leveling layer according to the design drawings;

[0109] Installation of horse stool reinforcement: Horse stool reinforcement is used to support the upper steel mesh of double-layer bidirectional steel bars. Horse stool reinforcement is set in both horizontal and vertical directions;

[0110] Concrete pouring: Concrete pouring is carried out, then the concrete surface is smoothed and then the concrete surface is calendered.

[0111] In S6, after the concrete foundation strength reaches the standard, an elastic sealing layer 10 is filled at the joint between the anti-step 2 and the floating floor slab. The elastic sealing layer 10 uses a waterproof caulking sealant to fill the joint between the anti-step 2 and the floating floor slab.

[0112] In S3, the sound-absorbing cotton is made of glass sound-absorbing cotton with aluminum foil. After the vibration-isolating glue is installed on the leveling layer, the glass sound-absorbing cotton with aluminum foil is spread flat on the vibration-isolating glue. A cross hole is made on the glass sound-absorbing cotton at the position of the vibration-isolating glue with a utility knife to expose the vibration-isolating glue. The glass sound-absorbing cotton is spread on the floor to fill the gaps in the vibration-isolating glue.

[0113] In S2, the counter-bank 2 is constructed of brick walls using M10 cement mortar, and the inner and outer sides and top surfaces of the brick walls are plastered with plaster mortar.

[0114] In this embodiment, the device 1 is equipped with a shock absorbing spring, and the shock absorbing spring of the device 1 also plays a role in shock absorption. Therefore, the sound insulation problem of the lower space can be effectively reduced under the double shock absorption effect.

[0115] This construction method isolates the floating foundation 7 from the structural floor slab, so that the vibration of the equipment 1 is isolated on the floating foundation 7. At the same time, the lower part of the floating foundation 7 is filled with vibration-isolating glue and sound-absorbing cotton, and the rubber-plastic relief plate 3 is pasted on the side. Finally, the reinforced concrete foundation is poured, and the equipment 1 is suspended above the foundation, which effectively reduces the sound insulation problem of the lower space and solves the vibration or noise generated when the large equipment 1 is turned on. It is a sound insulation treatment method for spaces with high sound insulation requirements in the lower layer. The isolation floor slab offsets the vibration of the equipment 1 on the floating foundation 7, avoiding vibration damage to the floor slab foundation caused by the vibration of the large equipment 1. The foundation of the equipment 1 is independently and flexibly connected in all directions to reduce the sound transmission medium. Through the implementation of the floating foundation 7 of the equipment 1, the sound insulation requirements can be effectively met in spaces with high sound insulation requirements.

[0116] This construction method separates the floating foundation 7 from the structural floor slab, so that the vibration of the equipment 1 is isolated on the floating foundation 7. At the same time, the lower part of the floating foundation 7 is filled with vibration isolation glue and aluminum foil glass sound-absorbing cotton, and the rubber-plastic relief plate 3 and linoleum are pasted on the side. The upper part is a steel plate welded and then the linoleum is fully pasted. Finally, the reinforced concrete foundation is poured, and the equipment 1 is suspended above the foundation, which effectively reduces the sound insulation problem of the lower space.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A method for constructing a large-scale equipment shock-absorbing and sound-insulating floating foundation, characterized in that: The construction steps include: S1: Structural floor leveling and foundation layout: Base surface treatment: Set a leveling layer on the structural floor; Accurate layout: Mark the inner and outer edges of the floating foundation counter-slope on the leveling layer according to the design drawings; S2: Anti-slope masonry: Build the counter-ridge: build the counter-ridge along the inner and outer edges, seal and level the inner, outer and top surfaces of the counter-ridge, and set a waterproof layer for the counter-ridge; S3: Shock-absorbing and sound-insulating floating construction: Installation of rubber-plastic relief board: paste the rubber-plastic relief board all around the anti-ridge; Vibration isolation glue positioning: Vibration isolation glue is bonded to the leveling layer; Sound-absorbing cotton laying: Sound-absorbing cotton is laid on the vibration-isolating glue; S4: Formwork construction: The formwork is fully laid flat on the vibration isolation glue; S5: Formwork waterproof layer construction: set the formwork waterproof layer on the formwork surface; S6: Concrete foundation construction: Pour the concrete foundation on the leveling layer to form a floating foundation for installing equipment.

2. The large-scale equipment shock-absorbing and sound-insulating floating foundation construction method according to claim 1 is characterized in that: In S3, when determining the position of the vibration isolation glue, first lay out the lines, and use an ink fountain to pop out the vertical and horizontal layout lines of the vibration isolation glue on the base layer. The intersection of the vertical and horizontal layout lines is the center point of the vibration isolation glue, and the center of the vibration isolation glue is aligned with the vertical and horizontal intersection.

3. The large-scale equipment shock-absorbing and sound-insulating floating foundation construction method according to claim 2 is characterized in that: In S5, the four sides of the formwork waterproof layer are turned up to the top of the anti-ridge and compacted.

4. The large-scale equipment shock-absorbing and sound-insulating floating foundation construction method according to claim 3 is characterized by: In S5, the formwork waterproof layer is made by brushing all-purpose glue all over the formwork and sticking petroleum asphalt paper-based felt, which is then turned up on all sides.

5. The large-scale equipment shock-absorbing and sound-insulating floating foundation construction method according to claim 1 is characterized in that: In S6, pouring concrete foundation The following steps are involved: Laying of double-layer bidirectional steel bars: Lay double-layer bidirectional steel bars in the leveling layer according to the design drawings; Installation of horse stool bars: Horse stool bars are used to support the upper steel mesh of double-layer bidirectional steel bars, and horse stool bars are set in both horizontal and vertical directions; Concrete pouring: Concrete pouring is carried out, then the concrete surface is smoothed and then the concrete surface is calendered.

6. The large-scale equipment shock-absorbing and sound-insulating floating foundation construction method according to claim 5 is characterized by: In S6, after the concrete foundation strength reaches the standard, an elastic sealing layer is filled in the joint between the anti-sill and the floating floor slab.

7. The large-scale equipment shock-absorbing and sound-insulating floating foundation construction method according to claim 1 is characterized in that: In S3, the sound-absorbing cotton is glass sound-absorbing cotton with aluminum foil. After the vibration-isolating glue is installed on the leveling layer, the glass sound-absorbing cotton with aluminum foil is spread flat on the vibration-isolating glue. A cross hole is made on the glass sound-absorbing cotton at the vibration-isolating glue position with a utility knife to expose the vibration-isolating glue. The glass sound-absorbing cotton is spread on the floor to fill the gaps in the vibration-isolating glue.

8. The large-scale equipment shock-absorbing and sound-insulating floating foundation construction method according to claim 1 is characterized by: In S2, the counter-slope is constructed with brick walls, which are built with M10 cement mortar, and the inner and outer sides and top surfaces of the brick walls are plastered with plaster mortar.

9. The large-scale equipment shock-absorbing and sound-insulating floating foundation construction method according to claim 8, characterized in that: In S2, a counter-ridge waterproof layer is arranged on the outer side of the counter-ridge, and a leveling waterproof layer is arranged on the leveling layer.

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