CN116641535A - Terrace construction method for beam-free logistics storage factory building - Google Patents
Terrace construction method for beam-free logistics storage factory building Download PDFInfo
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- CN116641535A CN116641535A CN202310681235.0A CN202310681235A CN116641535A CN 116641535 A CN116641535 A CN 116641535A CN 202310681235 A CN202310681235 A CN 202310681235A CN 116641535 A CN116641535 A CN 116641535A
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- 238000010276 construction Methods 0.000 title claims abstract description 78
- 238000003860 storage Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000011049 filling Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 17
- 238000007790 scraping Methods 0.000 claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 12
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 claims abstract description 8
- 239000004568 cement Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000009415 formwork Methods 0.000 claims 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000000227 grinding Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000003490 calendering Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
- E04F15/14—Construction of joints, e.g. dividing strips
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a terrace construction method for a beamless logistics storage factory building, which relates to the technical field of building construction and comprises the following steps: reserving a construction joint at the axis position of the terrace, and measuring and setting a datum line with preset width at each base column; pouring a concrete cushion layer in the range of filling soil between bearing platforms in the construction process of the first-layer beam slab; installing steel bars connected with the terrace raft in the construction process of the bearing platform; paving and installing cushion layer steel bars according to design and specification requirements; installing and fixing the periphery of the terrace by adopting templates with preset specifications, and pouring cement soil with the preset specifications according to the installation and fixing of the partition templates by reserved construction joints; carrying out slurry lifting operation when the concrete is primarily solidified according to preset standard standards, and carrying out secondary scraping through a manual scraping bar; and (3) performing plastering and polishing operations on the scraped concrete. The construction method provided by the invention has the advantages that the structural terrace can be flexibly organized and arranged without being influenced by the construction of the upper main body structure.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a terrace construction method for a beam-free logistics storage factory building.
Background
With the vigorous development of E-commerce express delivery business, an ultra-large-area ultra-flat wear-resistant structure terrace becomes an important component of a multi-layer logistics storage factory building, the terrace structural design adopts a beam-free raft structure form with a bearing platform cap, the structural design is economical and reasonable, construction is convenient, and the terrace structural form is more and more widely applied in engineering construction of the logistics factory building.
Meanwhile, the logistics factory building engineering has the characteristics of short construction period, ultra-long and ultra-wide terrace, high quality standard and high construction difficulty. Therefore, in the project with a relatively short construction period, the construction from bottom to top is not suitable for carrying according to parts in terms of construction period, filling quality, finished product protection cost and the like, and the research and analysis prove that the construction process for constructing the bearing platform cap, the upper frame structure and the beamless oversized wear-resistant terrace is adopted.
Disclosure of Invention
In order to meet the requirements of short construction period and high quality standard of a logistics factory building, the invention provides a terrace construction method for a beam-free logistics storage factory building, which is used for terrace construction after upper floor construction is completed, and specifically comprises the following steps:
s1: reserving a construction joint at the axis position of the terrace, and measuring and setting a datum line with preset width at each base column;
s2: cleaning sundries remained in the construction process of the base layer, and pouring a concrete cushion layer in the soil filling range between bearing platforms in the construction process of the first layer beam slab;
s3: installing steel bars connected with the terrace raft in the construction process of the bearing platform;
s4: paving and installing cushion layer steel bars according to design and specification requirements;
s5: installing and fixing the periphery of the terrace by adopting templates with preset specifications, and installing and fixing the partition templates according to reserved construction joints;
s6: pouring cement soil with preset specification according to the selected range of the template frame, and vibrating, leveling and preliminary scraping;
s7: carrying out slurry lifting operation when the concrete is primarily solidified according to preset standard standards, and carrying out secondary scraping through a manual scraping bar;
s8: and (3) performing plastering and polishing operations on the scraped concrete.
Further, in the step S2, the base layer includes a cushion layer and a bearing platform.
Further, in the step S2, when pouring the concrete cushion layer, the method further includes the steps of: if the filling soil is separated from the concrete cushion layer, the filling soil is broken and backfilled or filled with sand stone is adopted; if the cushion layer is damaged or subsides, concrete filling or sand filling and repairing treatment is adopted.
Further, in the step S4, the steel bars include an upper layer of steel bars and a lower layer of steel bars, wherein the upper layer of steel bars are bound at each point, the lower layer of steel bars are bound at intersecting points, and the rest points are bound by adopting splayed fasteners.
Further, in the step S5, the wood on the top surface of the template is flush with the template after the template is installed and is consistent with the elevation of the top surface of the terrace.
Further, in the step S5, after the template is installed, the method further includes the steps of:
s51: and welding the vertical bailey piece steel bar frame and fixing the vertical bailey piece steel bar frame through inclined support steel bars.
Further, in the step S7, the preset standard is: the water on the surface of the concrete evaporates, and the impression is lower than the preset depth under the pressure of the preset weight.
Further, in the step S8, the plastering operation is divided into plastering the main body part of the terrace through a plastering machine and manually plastering the corner part of the terrace.
Compared with the prior art, the invention at least has the following beneficial effects: the terrace construction method for the beam-free logistics storage factory building can be used for construction under the condition that the upper floor is completed, the structural terrace can be flexibly and flexibly organized and arranged without being influenced by construction of an upper main body structure, meanwhile, due to shielding of the upper structure, the terrace construction method is not influenced by weather, and construction period is greatly shortened. Meanwhile, the protection measures for the terrace in the conventional construction method are saved, the cost and expenditure are reduced, and better economic and social benefits are achieved.
Drawings
Fig. 1 is a step diagram of a terrace construction method for a beamless logistics storage factory building.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
The method aims at the construction of the one-time formed structural terrace with high wear resistance and high flatness requirements, and is particularly suitable for the construction of the one-time structural terrace of a large-area multi-layer factory building or workshop under the conditions of poor weather conditions, poor geological conditions, short construction period requirements and the like. For this reason, as shown in fig. 1, the invention provides a terrace construction method for a beam-free logistics storage factory building, which is used for terrace construction after upper floor construction is completed, and specifically comprises the following steps:
s1: reserving a construction joint at the axis position of the terrace, and measuring and setting a datum line with preset width at each base column;
s2: cleaning sundries remained in the construction process of the base layer, and pouring a concrete cushion layer in the soil filling range between bearing platforms in the construction process of the first layer beam slab;
s3: installing steel bars connected with the terrace raft in the construction process of the bearing platform;
s4: paving and installing cushion layer steel bars according to design and specification requirements;
s5: installing and fixing the periphery of the terrace by adopting templates with preset specifications, and installing and fixing the partition templates according to reserved construction joints;
s6: pouring cement soil with preset specification according to the selected range of the template frame, and vibrating, leveling and preliminary scraping;
s7: carrying out slurry lifting operation when the concrete is primarily solidified according to preset standard standards, and carrying out secondary scraping through a manual scraping bar;
s8: and (3) performing plastering and polishing operations on the scraped concrete.
Before the actual construction, preparation before the construction is required. Firstly, an ultra-flat terrace construction scheme is compiled, a terrace construction partition block and pouring sequence diagram is drawn, construction joints are required to be reserved at the axis position, full-worker technology and safe bottoming are carried out before construction, and a construction flow, a safety quality requirement, an operation method, an acceptance standard and the like are defined. And a datum line with preset width is tested at each column part and used as a datum line in the construction process.
After the preparation work is finished, the cushion layer and the bearing platform need to be cleaned up of the mourning concrete blocks, sundries, dust and the like in the construction process, and the bearing platform surface needs to be cleaned by water; and (3) arranging a part which does not meet the requirements at the joint surface of the bearing platform surface and the raft concrete, and manually performing secondary roughening treatment. Avoiding the influence of impurities and burrs on the construction quality.
And then constructing the beam slab, wherein the filling range between the bearing platforms is required to be entirely poured with a concrete cushion layer. Of course, during beam slab construction, the corners and other parts of the filling area inevitably have certain uneven settlement.
In view of this problem, the site where the filling and concrete cushion are separated can be treated by breaking open to re-fill the filling or filling sand. For the damaged or excessively settled parts of the cushion layer, concrete filling or sand filling repair treatment is adopted, so that the cushion layer is compact and flat. Meanwhile, in order to ensure the reliability of the connection of the bearing platform, a dowel bar connected with the terrace raft is arranged during the construction of the bearing platform; before terrace construction, the cushion cap is deformed with terrace connecting steel bars, and operators are arranged to carry out car correction according to design requirements.
According to the construction process, the floor steel bars are installed, the steel bars are paved and installed according to the marked steel bar marks on the cushion layer, and the variety, specification and spacing of the steel bars are ensured to meet the design and specification requirements (and corresponding steel bar protection layers are arranged). After the binding of the lower layer of steel bars is completed, water and electricity are inserted in time to perform pre-buried and reserved construction, and then the upper layer of steel bars are installed. Every point position of upper plate reinforcing bar all needs the ligature to guarantee not to the reinforcing bar when laser leveling machine operates and roll the deformation, the ligature is not hard up, guarantees the integrality of reinforcing bar. The intersection points of two ribs at the periphery of the lower layer plate rib are bound completely, and other points can be bound in a staggered manner by adopting splayed buckles.
The following is the installation of the concrete form. The periphery template of the factory floor is made of wood templates with certain thickness and processed by a wood square. The template is fixed firmly according to datum line location installation on the post, and template top surface side and template parallel and level after the template installation, and must be unanimous with terrace top surface elevation. Meanwhile, a vertical steel bar bailey sheet frame is welded and fixed by inclined support short steel bars, so that the wood is firmly installed and is not influenced by external force.
Binding three layers of fine mesh steel wire meshes between the two layers of steel bar meshes to serve as isolation, and adopting polished battens as partition templates on the steel bar meshes.
After the setting of the final frame and the steel bar keels is completed, concrete pouring is needed. Here, ordinary Portland cement is selected, meanwhile, cement of the same brand must be adopted, and the same-lot cement should be adopted in the same area to reduce the surface color difference of the concrete. The impurity content of the sand stone is strictly controlled, the sand adopts II-level grading, the stone adopts continuous grading, and the particle size is not easy to be excessively large. The cement ratio should be strictly controlled when the concrete is poured, namely, the slump is checked at intervals of a certain number of times, and the quality state of the concrete is controlled to be stable in time through observation. Either the slump is too great or too small to be used after adjustment by the mixing station.
In order to ensure the smoothness of concrete pouring, a laser emitter is required to be erected before pouring, and the terrace elevation is guided to a small laser leveling machine according to an original level point, so that the laser leveling machine is set and debugged. And then, concrete pouring is carried out by adopting an automobile pump, and paving is carried out by adopting a longitudinal strip-by-strip method. The width of the longitudinal strips is slightly wider than the working width of the leveling machine. Spreading starts from the end from far to near. When the concrete mixture is poured into the mould, the uniform distribution is carried out according to the thickness, the concentrated stacking is not needed, the virtual paving thickness is slightly higher than the structural thickness, the virtual thickness is higher than the mould by a certain height, the material reduction or material supplement work is carried out when necessary, and the longitudinal and transverse section is required to meet the requirements. Meanwhile, the concrete should be continuously paved without interruption when being paved.
Further, in order to uniformly stir concrete, an inserted vibrating rod is also adopted for vibrating, after vibrating, a laser reflector is used for measuring and leveling, concrete paving, vibrating and measuring are kept synchronous, and in the process, special people perform feeding or shoveling on the too low or too high part, so that the concrete surface is ensured to be provided with a rough and flat surface. The concrete is paved and vibrated for a certain length, the leveling machine immediately vibrates, screeds and levels, the vibrating beam of the leveling machine vibrates at high frequency, so that the upper surface of the concrete is fully covered with primary pulp, coarse aggregate is extruded and thickened to the lower part of the surface of the concrete, and the requirements of leveling and tamping can be met. After the leveling machine is used for leveling, an aluminum alloy scraping bar is adopted, the surface of the concrete is manually scraped for checking, the concrete is simultaneously scraped from the longitudinal direction and the transverse direction, the joint and the column corner of the laser leveling machine are mainly leveled, floating matters, surface rain bubbles and the like are scraped, and the flatness of the horizon can be improved.
When the water on the surface of the concrete is evaporated, a certain weight of people steps on the concrete to basically prevent sinking, and when the surface is provided with marks within a certain depth, the surface grinding and slurry lifting are started. Here, we firstly adopt the hand-held mechanical trowel to carry out the slurry lifting operation uniformly and repeatedly according to the casting sequence, the number of the rough trowels is determined according to the troweling condition, but the number of the rough trowels is not less than two, and after each troweling is finished, the next troweling is carried out after the water on the concrete surface is evaporated. When the shoe is roughly smeared, an operator wears the grid shoe by feet.
And (3) carrying out secondary leveling by using an aluminum alloy scraping bar manually after mechanical grinding and pulp lifting. The scraping and leveling are carried out by adopting the scraping bar manually, and quality inspection staff is additionally arranged to synchronously check the flatness by using the aluminum alloy scraping bar so as to treat unqualified points, the whole flatness is improved by using an aluminum alloy scraping rule mode, the method is a key for guaranteeing the final flatness, and when the final flatness is secondarily leveled, the leveling staff is adopted to calibrate the elevation one by one in a leveling instrument and excimer emitter matching mode until the whole flatness is controlled within a target range.
Finally, the finishing and calendaring operation is performed. The plastering is carried out by adopting a driving type double-disc plastering machine, and the corner parts are carried out manually. Mechanical calendaring is carried out in two stages of finish wiping and final wiping, and is completed before final setting. Before the concrete is finally set, the area where the artificial fine lift car is finished is polished by using a double-disc trowelling machine, and a polisher with the weight of more than 500 and kg is used for polishing in order to achieve the purposes of compacting the concrete and improving the wear resistance of the surface of the concrete. Polishing by using a blade after grinding by using a disc; when polishing, the blade should be further inclined, friction force is increased for the concrete surface, polishing and light receiving are carried out, and the glossiness of the terrace is uniform. After the finishing coating, the surface is basically flat and smooth, and when only very slight marks are stepped on, quality inspection personnel can perform full inspection, and the non-satisfactory parts are further polished and finished by a polishing machine.
After all the working procedures are finished, the floor is required to be cured, and the operations of polishing, pit repairing, flatness spot repairing, sealing curing agent spraying, infiltration and polishing are sequentially carried out in the curing process, so that the structural floor with high wear resistance and high flatness is obtained.
In summary, the terrace construction method for the beam-free logistics storage factory building provided by the invention can be used for construction under the condition that the upper floor is completed, the structural terrace can be flexibly and flexibly organized and arranged without being influenced by the construction of the upper main body structure, and meanwhile, the upper structure is shielded, the influence of weather is avoided, and the construction period is greatly reduced. Meanwhile, the protection measures for the terrace in the conventional construction method are saved, the cost and expenditure are reduced, and better economic and social benefits are achieved.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
Claims (8)
1. The floor construction method for the beam-free logistics storage factory building is characterized by comprising the following steps of:
s1: reserving a construction joint at the axis position of the terrace, and measuring and setting a datum line with preset width at each base column;
s2: cleaning sundries remained in the construction process of the base layer, and pouring a concrete cushion layer in the soil filling range between bearing platforms in the construction process of the first layer beam slab;
s3: installing steel bars connected with the terrace raft in the construction process of the bearing platform;
s4: paving and installing cushion layer steel bars according to design and specification requirements;
s5: installing and fixing the periphery of the terrace by adopting templates with preset specifications, and installing and fixing the partition templates according to reserved construction joints;
s6: pouring cement soil with preset specification according to the selected range of the template frame, and vibrating, leveling and preliminary scraping;
s7: carrying out slurry lifting operation when the concrete is primarily solidified according to preset standard standards, and carrying out secondary scraping through a manual scraping bar;
s8: and (3) performing plastering and polishing operations on the scraped concrete.
2. The terrace construction method for the beamless logistics storage factory building of claim 1, wherein in the step S2, the base layer comprises a cushion layer and a bearing platform.
3. The terrace construction method for the beam-free logistics warehouse factory building of claim 1, wherein in the step S2, when pouring the concrete cushion, the method further comprises the steps of: if the filling soil is separated from the concrete cushion layer, the filling soil is broken and backfilled or filled with sand stone is adopted; if the cushion layer is damaged or subsides, concrete filling or sand filling and repairing treatment is adopted.
4. The terrace construction method for the beam-free logistics storage factory building of claim 1, wherein in the step S4, the steel bars comprise an upper layer of steel bars and a lower layer of steel bars, wherein the upper layer of steel bars are bound at each point, the lower layer of steel bars are bound at the intersecting point, and the rest points are bound by adopting splayed buckles.
5. The terrace construction method for the beam-free logistics storage factory building of claim 1, wherein in the step S5, the wood of the top surface of the formwork is flush with the formwork after the installation of the formwork and is identical to the elevation of the top surface of the terrace.
6. The terrace construction method for the beamless logistics storage factory building of claim 5, wherein in the step S5, after installing the formwork, the method further comprises the steps of:
s51: and welding the vertical bailey piece steel bar frame and fixing the vertical bailey piece steel bar frame through inclined support steel bars.
7. The terrace construction method for the beamless logistics storage factory building of claim 1, wherein in the step S7, preset standard standards are: the water on the surface of the concrete evaporates, and the impression is lower than the preset depth under the pressure of the preset weight.
8. The terrace construction method for the beamless logistics storage factory building of claim 1, wherein in the step S8, the plastering operation is divided into plastering the main part of the terrace by a plastering machine and manually plastering the corner part of the terrace.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310681235.0A CN116641535A (en) | 2023-06-09 | 2023-06-09 | Terrace construction method for beam-free logistics storage factory building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310681235.0A CN116641535A (en) | 2023-06-09 | 2023-06-09 | Terrace construction method for beam-free logistics storage factory building |
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| CN116641535A true CN116641535A (en) | 2023-08-25 |
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| CN202310681235.0A Pending CN116641535A (en) | 2023-06-09 | 2023-06-09 | Terrace construction method for beam-free logistics storage factory building |
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- 2023-06-09 CN CN202310681235.0A patent/CN116641535A/en active Pending
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