CN106760553B - Construction method and device for controlling flatness of cast-in-situ reinforced concrete slope surface of discharging platform - Google Patents
Construction method and device for controlling flatness of cast-in-situ reinforced concrete slope surface of discharging platform Download PDFInfo
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- CN106760553B CN106760553B CN201710179933.5A CN201710179933A CN106760553B CN 106760553 B CN106760553 B CN 106760553B CN 201710179933 A CN201710179933 A CN 201710179933A CN 106760553 B CN106760553 B CN 106760553B
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- slope
- guide rail
- rod guide
- slope surface
- cast
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- 238000010276 construction Methods 0.000 title claims abstract description 36
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 16
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 15
- 238000007599 discharging Methods 0.000 title description 4
- 239000004567 concrete Substances 0.000 claims abstract description 25
- 238000007790 scraping Methods 0.000 claims abstract description 25
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 238000000605 extraction Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 54
- 239000010959 steel Substances 0.000 claims description 54
- 229910000746 Structural steel Inorganic materials 0.000 claims description 20
- 235000000396 iron Nutrition 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- 238000007689 inspection Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/10—Devices for levelling, e.g. templates or boards
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model particularly relates to a cast-in-situ reinforced concrete slope surface flatness control construction method and a device thereof for a discharge platform, wherein the method comprises the following steps: 1) Erecting a slope structure die carrier; 2) A downward inclined scraping rod guide rail is arranged; 3) Pouring, vibrating and flattening concrete; 4) Scraping; 5) Dismantling the scraping rod guide rail; 6) Concrete slurry extraction and polishing; 7) And (5) water-retaining and curing of the concrete coating. The device comprises a slope structure die carrier and is characterized in that a plurality of strickle rod guide rails are distributed on the slope surface of the slope structure die carrier at intervals, each strickle rod guide rail extends from the slope top to the slope bottom, a plurality of guide rail supports are arranged at the bottom of each strickle rod guide rail, the upper ends of the guide rail supports are connected with the bottoms of the strickle rod guide rails, and the lower ends of the guide rail supports are fixed on the slope structure die carrier. The utility model has the advantages of convenient construction and good construction effect.
Description
Technical Field
The utility model belongs to the technical field of concrete construction, and particularly relates to a cast-in-situ reinforced concrete slope surface flatness control construction method and device for a discharge platform.
Background
In the engineering construction process of the waste incineration power plant, the unloading platform is used as a functional component and is designed into a slope plate surface generally. As is well known, as cast-in-situ reinforced concrete structure flat construction, the elevation is generally measured by adopting a 50mm line shoveled and measured on a steel bar in the concrete pouring process, and then the elevation of a structural entity is controlled by adopting a method of scraping the concrete by adopting an aluminum alloy rod. However, for the slope surface of the unloading platform, if the conventional 50-wire drawing method is still adopted for construction, the aluminum alloy rod is scraped, the flatness control is poor, and the elevation and the flatness of the slope structure are difficult to ensure.
Disclosure of Invention
The utility model aims to solve the defect that the elevation and the flatness of a slope structure are difficult to ensure by adopting a conventional construction method of drawing 50 lines and scraping an aluminum alloy rod during construction of a concrete slope surface, and provides a construction method and a device for controlling the flatness of a cast-in-situ reinforced concrete slope surface of a discharging platform.
The utility model is realized by the following technical scheme:
namely a slope plate surface discharging platform cast-in-situ reinforced concrete slope plate surface flatness control construction method, which is characterized by comprising the following steps:
1) Erecting a slope structure die frame, wherein the slope is completed by binding beams, plates and reinforcing steel bars;
2) The slope top to the slope bottom are provided with downward inclined strickling rod guide rails, a plurality of guide rail supports are arranged below the strickling rod guide rails at intervals, the bottom ends of the guide rail supports are welded on the non-stressed bars of the beam or the plate, the top ends of the guide rail supports are welded below the guide rails, and the plurality of guide rails are distributed on the slope at intervals;
3) Pouring, vibrating and flattening concrete;
4) The scraping rods are placed on two adjacent scraping rod guide rails, move from top to bottom, and scrape the slope plate surface, so that progressive construction is performed from one end to the other end when scraping, and constructors reversely advance when scraping;
5) Before initial setting, removing the scraping rod guide rail, and manually leveling and wiping the footprint and guide rail mark generated when the scraping rod guide rail is removed for the second time;
6) Concrete slurry extraction and polishing;
7) And (3) water-retaining curing of the concrete coating, wherein the curing time is more than or equal to 7 hours.
Before the guide rail of the strickling rod is installed, a steel wire is pulled above the installation position of the guide rail in advance to serve as an installation reference, two ends of the steel wire are installed on a steel wire fixed support, and the steel wire fixed support is fixedly installed at the top and the bottom of a slope structure die carrier.
The guide rail support and the steel wire fixing support are marked by elevation in advance. The guide rail support and the steel wire fixing support are designed according to the drawing, the surface of the concrete structure is higher than a certain distance to be leveled, and elevation marks are made.
According to the construction technology disclosed by the utility model, the elevation marks are carried out on the support of the plurality of guide rails at the bottom of each strickling rod guide rail in advance, so that the elevation and the gradient of the strickling rod guide rail are ensured, the arrangement of the steel wire line can prevent the deflection during the installation of the strickling rod guide rail, the elevation of the strickling rod guide rail is ensured, and the elevation of a slope surface is also ensured. The scraping rod is used for scraping the slope from top to bottom along the scraping rod guide rail, so that the flatness of the slope plate surface is ensured.
The utility model provides a cast-in-place reinforced concrete slope face roughness control construction device of slope plate face discharge platform, includes slope structure die carrier, its characterized in that on the domatic interval distribution of slope structure die carrier has many strickle pole guide rails, every strickle pole guide rail extends to the slope bottom from the slope top, and the bottom of every strickle pole guide rail is equipped with many guide rail supports, and the guide rail supports the upper end and is connected with the bottom of strickle pole guide rail, and the lower extreme is fixed on the non-stressed muscle of slope structure die carrier.
As a preferable scheme of the utility model, the scraping rod guide rail is angle iron, the guide rail is supported by steel bars, the corners of the angle iron are upward, one side of the upper part of the steel bars and one side edge of the angle iron are welded together, and the top end of the steel bars is lower than the corners of the angle iron.
The angle iron and the steel bars are common materials in the construction site, the price is low, the material selection is convenient, the steel bars are left in the concrete after the construction is finished, and the reinforcement effect can be achieved. The angle iron corner is upward, and the scraping rod bottom contacts with the angle iron corner, and area of contact is little, and frictional force is little. The edge on the other side of the angle iron is in an open state, so that the angle iron and the steel bar can be conveniently separated in the subsequent process, the angle iron and the steel bar can be separated only by clamping the edge on the side which is not welded by using a spanner and lifting the edge upwards, and the angle iron can be reused again after being separated, so that waste is avoided.
The scraping rod guide rail is formed by combining and welding a plurality of sections of angle irons.
The strickle lever of the utility model is a product in the prior art and is generally made of aluminum alloy.
The utility model has the advantages of convenient construction and good construction effect. By using the construction technology and the construction device, the construction surface of the large-area cast-in-situ reinforced concrete slope after construction is finished, the structural elevation, the flatness and the section size of the structural plate meet the design and specification requirements, and a better engineering entity effect is achieved.
Drawings
FIG. 1 is a schematic top view of the present utility model;
FIG. 2 is a schematic side view of the present utility model;
fig. 3 is a schematic view of a connection structure between a rail and a rail support of a scraping rod according to the present utility model.
As shown in the figure; 1. slope structure mould frame; 2. a strickling bar guide; 3. a guide rail support; 4. a strickle bar; 5. a steel wire; 6. fixing and supporting a steel wire; 7. and the steel wire is fixedly supported.
Detailed Description
The construction technique and apparatus of the present utility model will be described in detail with reference to the accompanying drawings and specific construction processes.
As shown in fig. 1, 2 and 3; firstly, erecting a formwork 1 with a slope structure according to the design drawing and the construction scheme, wherein the slope is completed by binding beams, plates and reinforcing steel bars. Then, the steel wire fixing support 6 is welded from one end of the slope roof (column steel bars are adopted, when no column steel bars are arranged, steel bars with the diameter of 16mm are adopted singly, the welding height is preferably 350mm when the plate steel bars are exposed, the steel bar spacing is 300 mm), meanwhile, the steel wire fixing support 7 is welded from one end of the slope roof (when the column steel bars are adopted, when no column steel bars are arranged, steel bars with the diameter of 16mm are adopted, the welding height is preferably 350mm when the plate steel bars are exposed, the steel bar spacing is 300 mm), the welding is firm and stable, and the surface height of the concrete structure is 300mm according to the design of drawing, and the marking is finished.
And then equally dividing the two column reinforcements corresponding to the slope top and the slope bottom from bottom to top according to the length of angle iron (generally 6 m), welding the reinforcement with 350mm, equally dividing the elevation according to the gradient and copying and measuring the marking point 300mm higher than the concrete surface, and marking clearly. The corner iron buckles with the length of 30 multiplied by 3mm are placed above the steel bars on the uppermost layer plate, the corresponding marking steel bars on the top and the bottom of the slope are buckled completely (namely, angle irons are arranged along the gradient direction in a through length way), the distance between each row of angle irons is preferably 3000mm, then marking is carried out on the two ends of each row of angle irons, steel wires are thinned between two column steel bars, and the distance between the steel wires and the angle irons is controlled to be 300mm.
Furthermore, short steel bars with the diameter of 12mm are adopted below the angle iron, one guide rail support 3 is arranged at intervals of 300mm, one end of each short steel bar is supported on the template, and the other end of each short steel bar is propped against one side edge of the angle iron (the side edge of the angle iron and the upper end point of the short steel bar are firmly welded, the short steel bar and the non-stressed steel bars of the beam or the plate are welded at the same time, and the exposed length of the upper end of the short steel bar does not exceed the length of the upper edge of the angle iron).
And similarly, welding angle irons one by one according to the method to form a plurality of scraping rod guide rails 2 which are distributed at intervals. After joint inspection and acceptance are completed, concrete pouring, vibrating and flattening are carried out, an aluminum alloy rod with the length of 4000mm is adopted as a flattening rod 4, and the joint inspection and acceptance are carried out according to a group of two flattening rod guide rails 2, so that the joint inspection and acceptance are carried out manually, and constructors reversely advance when the joint inspection and flattening are carried out, so that the foot marks are prevented from being left; before the concrete is basically initially set, angle irons are separated from short steel bars by using a spanner, the angle irons are taken out and retracted into a warehouse uniformly, and the footprint and the guide rail mark generated when the strickling rod guide rail 2 is dismantled are leveled and smeared by adopting a secondary manual work.
When the strength of the concrete reaches the pedal micro-dipping, and the imprinting is not deeper than 3mm, the concrete surface body is smoothed by adopting a disc paste lifter, the self-checking flatness is controlled within 3mm, and finally, the plastic film is covered for water retention maintenance not less than 7d.
The construction process comprises the following process flows:
setting up a slope structure die carrier, binding steel bars with beam plates, marking the elevation of a slope top, marking the elevation of the slope top, drawing up thin steel wires, stacking through long angle irons along the gradient direction, welding steel bar supports, checking and accepting after angle iron welding is finished, casting concrete, flattening concrete, scraping an aluminum alloy rod before initial setting, dismantling angle irons, lifting concrete slurry, polishing and covering and maintaining concrete.
Claims (7)
1. A construction method for controlling flatness of cast-in-situ reinforced concrete slope surface of a slope plate surface unloading platform is characterized by comprising the following steps:
1) Erecting a slope structure die frame, wherein the slope is completed by binding beams, plates and reinforcing steel bars;
2) The slope top to the slope bottom are provided with downward inclined strickling rod guide rails, a plurality of guide rail supports are arranged below the strickling rod guide rails at intervals, the bottom ends of the guide rail supports are welded on the non-stressed bars of the beam or the plate, the top ends of the guide rail supports are welded below the guide rails, and the plurality of guide rails are distributed on the slope at intervals;
3) Pouring, vibrating and flattening concrete;
4) The scraping rods are placed on two adjacent scraping rod guide rails, move from top to bottom, and scrape the slope plate surface, and progressively construct from one end to the other end during scraping;
5) Before initial setting, removing the strickling rod guide rail;
6) Concrete slurry extraction and polishing;
7) And (3) water-retaining curing of the concrete coating, wherein the curing time is more than or equal to 7 hours.
2. The construction method for controlling the flatness of the cast-in-situ reinforced concrete slope surface of the slope surface unloading platform according to claim 1, wherein in the step 4), the constructor moves backwards when the slope surface is scraped.
3. The construction method for controlling the flatness of the cast-in-situ reinforced concrete slope surface of the slope surface unloading platform according to claim 1, wherein in the step 5), the footprint and the guide rail mark generated when the guide rail of the scraping rod is removed are leveled and smeared by adopting a secondary manual work.
4. The construction method for controlling the flatness of the cast-in-situ reinforced concrete slope surface of the slope surface unloading platform according to claim 1, wherein before the guide rail of the strickling rod is installed, a steel wire is pulled in advance above the installation position of the guide rail as an installation reference, two ends of the steel wire are installed on steel wire fixed supports, and the steel wire fixed supports are fixedly installed at the slope top and the slope bottom of the slope structure die carrier.
5. The construction method for controlling the flatness of the cast-in-situ reinforced concrete slope surface of the slope surface unloading platform according to claim 1 or 4, wherein the installation positions of the guide rail support and the steel wire fixed support are marked by elevation in advance.
6. The cast-in-situ reinforced concrete slope surface flatness control construction device for the slope plate surface unloading platform according to claim 1 comprises a slope structure die frame and is characterized in that a plurality of leveling rod guide rails are distributed on the slope surface of the slope structure die frame at intervals, each leveling rod guide rail extends from the slope top to the slope bottom, a plurality of guide rail supports are arranged at the bottom of each leveling rod guide rail, the upper ends of the guide rail supports are connected with the bottom of each leveling rod guide rail, the lower ends of the guide rail supports are fixed on a non-stressed rib of the slope structure die frame, the leveling rod guide rails are angle irons, the guide rails are supported as steel bars, the corners of the angle irons are upward, one side edge of the upper part of each steel bar is welded with one side edge of each angle iron, the edge of the other side edge of each angle iron is in an open state, and the top end of each steel bar is lower than the corner of each angle iron.
7. The construction device for controlling the flatness of the cast-in-situ reinforced concrete slope surface of the slope surface unloading platform according to claim 6, wherein the scraping rod guide rail is formed by combining and welding a plurality of sections of angle irons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179933.5A CN106760553B (en) | 2017-03-23 | 2017-03-23 | Construction method and device for controlling flatness of cast-in-situ reinforced concrete slope surface of discharging platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179933.5A CN106760553B (en) | 2017-03-23 | 2017-03-23 | Construction method and device for controlling flatness of cast-in-situ reinforced concrete slope surface of discharging platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106760553A CN106760553A (en) | 2017-05-31 |
| CN106760553B true CN106760553B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710179933.5A Active CN106760553B (en) | 2017-03-23 | 2017-03-23 | Construction method and device for controlling flatness of cast-in-situ reinforced concrete slope surface of discharging platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109339456A (en) * | 2018-11-22 | 2019-02-15 | 上海宝冶集团有限公司 | A kind of construction method controlling cast-in-place concrete planar surface flatness |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718990A (en) * | 1993-07-06 | 1995-01-20 | Takenaka Komuten Co Ltd | Invert concrete leveling device in shielding work |
| CN201172971Y (en) * | 2008-01-14 | 2008-12-31 | 中建三局第一建设工程有限责任公司 | Construction control device for controlling flatness of concrete primary pulp ground |
| CN202194317U (en) * | 2011-08-16 | 2012-04-18 | 江西建工第一建筑有限责任公司 | Guide rail structure for cast-in-site concrete slope surface |
| CN103643603A (en) * | 2013-12-13 | 2014-03-19 | 中铁十五局集团有限公司 | Ballastless track construction method for laying sleepers and assembling track panel |
| CN203684699U (en) * | 2013-12-16 | 2014-07-02 | 中国建筑第六工程局有限公司 | Control board type structure concrete elevation and smoothness device |
| CN104234012A (en) * | 2014-09-28 | 2014-12-24 | 浙江水利水电学院 | Ultralong concrete slip form body of concrete rockfill dam and construction method of slip form body |
| CN205857545U (en) * | 2016-05-25 | 2017-01-04 | 陈静波 | Insulation and levelling integration roofing self-heat conserving structure |
-
2017
- 2017-03-23 CN CN201710179933.5A patent/CN106760553B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718990A (en) * | 1993-07-06 | 1995-01-20 | Takenaka Komuten Co Ltd | Invert concrete leveling device in shielding work |
| CN201172971Y (en) * | 2008-01-14 | 2008-12-31 | 中建三局第一建设工程有限责任公司 | Construction control device for controlling flatness of concrete primary pulp ground |
| CN202194317U (en) * | 2011-08-16 | 2012-04-18 | 江西建工第一建筑有限责任公司 | Guide rail structure for cast-in-site concrete slope surface |
| CN103643603A (en) * | 2013-12-13 | 2014-03-19 | 中铁十五局集团有限公司 | Ballastless track construction method for laying sleepers and assembling track panel |
| CN203684699U (en) * | 2013-12-16 | 2014-07-02 | 中国建筑第六工程局有限公司 | Control board type structure concrete elevation and smoothness device |
| CN104234012A (en) * | 2014-09-28 | 2014-12-24 | 浙江水利水电学院 | Ultralong concrete slip form body of concrete rockfill dam and construction method of slip form body |
| CN205857545U (en) * | 2016-05-25 | 2017-01-04 | 陈静波 | Insulation and levelling integration roofing self-heat conserving structure |
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| CN106760553A (en) | 2017-05-31 |
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