CN110700581A - Reinforced concrete thin-wall cylindrical well template system and method for pouring thin-wall cylindrical well by using same - Google Patents
Reinforced concrete thin-wall cylindrical well template system and method for pouring thin-wall cylindrical well by using same Download PDFInfo
- Publication number
- CN110700581A CN110700581A CN201910988749.4A CN201910988749A CN110700581A CN 110700581 A CN110700581 A CN 110700581A CN 201910988749 A CN201910988749 A CN 201910988749A CN 110700581 A CN110700581 A CN 110700581A
- Authority
- CN
- China
- Prior art keywords
- thin
- core mold
- well
- wall
- air bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
-
- 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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/063—Re-usable forms
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
A reinforced concrete thin-wall cylindrical well template system comprises an outer template, an inner lining frame and a core mold; the outer template is spliced on the periphery of the thin-wall barrel well reinforcement framework, the inner lining frame is arranged in the inner cavity of the thin-wall barrel well reinforcement framework, and the core mold is arranged in the inner cavity of the inner lining frame; the inner lining frame is the same as the inner cavity of the thin-wall barrel well in size, the core mold is a rubber air bag core mold, the diameter of the outer circle of the core mold is the same as the inner diameter of the thin-wall barrel well after the core mold is filled with air, and the height of the core mold is 200mm higher than that of the thin-wall barrel well. The construction method for pouring the reinforced concrete thin-wall cylindrical well by using the reinforced concrete thin-wall cylindrical well comprises the following steps: designing a structure construction big sample drawing; manufacturing an inner lining frame: manufacturing a rubber air bag core mold: erecting a full scaffold; mounting wood purlin and a bottom template; assembling a lining frame and binding a reinforcement framework of the thin-wall barrel well; installing a rubber air bag core mold: assembling an outer template; pouring concrete with a cylindrical wall structure and removing the core mold. The template system has the advantages of simple structure, easy assembly and disassembly, convenient storage and transportation, simple construction method, high production efficiency, good molding quality, recycling, energy conservation and environmental protection.
Description
Technical Field
The invention relates to a building structure and a construction method, in particular to a reinforced concrete thin-wall cylindrical well template system and a construction method for pouring a reinforced concrete thin-wall cylindrical well by using the same.
Background
In modern buildings, hollow thin-wall cylindrical shafts such as ventilation shafts, light guide shafts, cable shafts and the like are often attached to the top plate and the roof of a basement due to the requirement of building functions, the inner space of the cylindrical shaft is relatively narrow (generally the inner diameter is 40 cm-100 cm, the height is 100 cm-200 cm, hereinafter referred to as thin-wall barrel well), the thin-wall barrel well is usually cast in situ by reinforced concrete, a thin-wall barrel well template system is required to be manufactured before pouring, the traditional template system comprises an inner template and an outer template and a bracket, the traditional method is that after a thin-wall barrel well reinforcement framework is bound (the thin-wall barrel well reinforcement framework is composed of vertical reinforcements and annular horizontal reinforcements), the inner template and the outer template are spliced and formed piece by piece, the thin-wall barrel well reinforcement framework and cast-in-situ concrete form a thin-wall barrel well together, the thin-wall barrel well is integrated with a surrounding reinforced concrete structure through circular platform base reinforcements, and the barrel wall structure is dismantled piece by piece after being cast and formed.
There are problems in that: the thin-wall cylinder well has long and narrow internal space, the construction operation of installing and disassembling the templates, particularly the templates at the inner side, is difficult, the appearance and quality of the cylinder wall structure are influenced, the work efficiency is low, the engineering progress is slow, and the engineering cost is increased.
Disclosure of Invention
The invention aims to provide a thin-wall cylindrical well reinforced concrete template system and a construction method for casting a thin-wall cylindrical well by using the same, so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
a reinforced concrete thin-wall cylindrical well template system comprises an outer template, an inner lining frame and a core mold; the outer template is spliced on the periphery of the thin-wall barrel well reinforcement framework, the inner lining frame is arranged in the inner cavity of the thin-wall barrel well reinforcement framework, and the core mold is arranged in the inner cavity of the inner lining frame;
the lining frame comprises a top reinforcing ring, a bottom reinforcing ring and upright rods connected between the top reinforcing ring and the bottom reinforcing ring, the upright rods are uniformly arranged, and the distance between the two upright rods is not more than 100 mm; the appearance size of the inner lining frame is consistent with the inner space size of the thin-wall barrel well, namely the size of the top reinforcing ring is consistent with the inner diameter size of the well head of the thin-wall barrel well, and the size of the bottom reinforcing ring is consistent with the inner diameter size of the well bottom of the thin-wall barrel well;
the core mold is a rubber air bag core mold and comprises a core mold top surface, a core mold circumferential surface and a core mold bottom surface, a standard air valve is arranged in the center of the core mold top surface, and after the rubber air bag core mold formed by hot-melting connection of the core mold top surface, the core mold circumferential surface and the core mold bottom surface is filled with air, the outer circle diameter of the rubber air bag core mold is consistent with the inner diameter of the thin-wall cylinder well, and the height of the.
The other technical scheme is as follows:
a pouring construction method of a reinforced concrete thin-wall cylinder well is a construction method for pouring the reinforced concrete thin-wall cylinder well by adopting the reinforced concrete thin-wall cylinder well template system, and comprises the following steps:
s1 designing a structural construction big sample drawing according to the size of the thin-wall cylindrical well; the construction proof chart comprises: the structural section of the reinforced concrete thin-wall barrel well template, the structural top view of the reinforced concrete thin-wall barrel well template, the structural elevation of the lining frame and the elevation of the rubber air bag core mold;
s2, manufacturing a lining frame:
s21, compiling a blanking list including the length and the number of the vertical rods according to the structure construction big sample drawing;
s22, welding a top reinforcing ring and a bottom reinforcing ring, welding upright rods between the top reinforcing ring and the bottom reinforcing ring, uniformly arranging the upright rods, ensuring that the distance between the two upright rods is not more than 100mm, and ensuring that the appearance size of the formed lining frame is consistent with the inner space size of the thin-wall tube well;
s23, cleaning welding slag of the welding seam of the lining frame, and painting red lead anti-rust paint for one time;
s3 manufacturing a rubber air bag core mold:
s31, reducing the size of the large-scale drawing for structure construction by 20mm, and then performing CAD lofting;
s32 cutting the bottom surface, the top surface and the circumferential surface of the core mould by rubber pads according to the lofting size;
a standard air valve is arranged in the middle of the top surface of the S33 core die in a hole;
s34, connecting the top surface of the core mould, the circumferential surface of the core mould and the bottom surface of the core mould into a rubber air bag core mould in a hot melting way, wherein the size of the outer circle of the formed rubber air bag core mould is consistent with the size of the inner space of the lining frame after the rubber air bag core mould is filled with air, and the height of the formed rubber air bag core mould is 200;
s4, erecting a full scaffold according to the construction scheme special for installing and dismantling the template engineering, and carrying out shelf body acceptance inspection after the erection is finished;
s5, mounting wood purlin and a bottom template:
s51, binding the wood purlin on the full framing scaffold by using an iron wire and fixing;
s52, paving the bottom template on the wood purlin, nailing the iron nails firmly, and performing board surface elevation acceptance inspection;
s6, assembling lining frames on site, and binding reinforcement framework steel bars of the thin-wall barrel well:
s61, positioning the thin-wall cylindrical well structure on the bottom template, and marking;
s62, arranging and fixing a lining frame according to the marked position;
s63, binding inner-layer circular horizontal reinforcing bars and vertical reinforcing bars layer by layer from bottom to top to form a reinforcing bar framework at the inner side of the structure;
s64, binding outer-layer circular horizontal reinforcing bars and vertical reinforcing bars layer by layer from bottom to top to form a reinforcing bar framework at the outer side of the structure;
s65, connecting the inner side reinforcement framework and the outer side reinforcement framework together from the upper part, binding the circular truncated cone base reinforcement from the extension of the bottom of the outer side reinforcement framework of the structure, and finally forming the thin-wall cylinder well reinforcement framework whole;
s66, the steel bar binding screw threads uniformly face the interior of the thin-wall cylinder well reinforcement framework, so that the rubber air bag core mold is prevented from being scratched and punctured by subsequent operation;
s7 installing a rubber air bag core mould: placing the rubber air bag core mold into the lining frame, filling air, filling the air in the lining frame, and tightly blocking the standard air valve;
s8, assembling and reinforcing an outer template at the periphery of the thin-wall cylindrical well reinforcing rib framework;
s9, pouring concrete of the thin-wall tubular well structure, wherein the vibrating rod avoids directly touching a rubber air bag core mould during vibrating so as to prevent the core mould from moving, the concrete surface of the thin-wall tubular well structure is leveled and finished after pouring the concrete of the thin-wall tubular well structure, and the reinforced concrete thin-wall tubular well structure is formed;
s10 core mould removing
And after the reinforced concrete thin-wall cylindrical well structure is formed for 24 hours, and the concrete compressive strength reaches 1.0Mpa, performing formwork removal operation, unscrewing a standard air valve at the top of a rubber air bag core mold, deflating, manually drawing out the rubber air bag core mold, and performing surface cleaning for the construction of the next thin-wall cylindrical well.
Further: in the step S2 of manufacturing the lining frame, the upright rod, the top reinforcing ring and the bottom reinforcing ring are made of HBP300 phi 10 steel bars, the welding rod is an E43 type welding rod, the steel bars and the welding rod are sampled and inspected, and the welding operation is performed after the steel bars and the welding rod are qualified.
The method further comprises the following steps: before the step S7 "installing the rubber bladder core mold", soap water is uniformly applied to the surface of the rubber bladder core mold to facilitate demolding.
Further: in step S7, "install rubber air bag core mold", when the rubber air bag core mold is inflated, a small electric air compressor connected with a barometer is used to inflate the core mold, the rubber air bag core mold is properly adjusted to be centered and vertical during inflation, the inflation is stopped when the designed air pressure value is reached in the rubber air bag core mold, and at the same time, the standard air valve at the top of the core mold is closed, and the inflation pipe is disconnected.
The designed air pressure value is the lateral pressure of the concrete of the thin-wall cylindrical well to the template, and the lateral pressure of the concrete to the template is calculated according to a formula listed in item 4.1.1 of technical Specification for safety of building construction templates JGJ 162-2008.
By adopting the technical scheme, the reinforced concrete thin-wall cylindrical well template system and the method for casting the thin-wall cylindrical well by using the same have the following beneficial effects:
1. the rubber air bag core mold of the reinforced concrete thin-wall cylindrical well template system is easy to install and disassemble, the problems of narrow internal space of the thin-wall cylindrical well and difficulty in installation and construction of the internal template are solved, the production efficiency is greatly improved, and the construction period is shortened;
2. the rubber air bag core mould of the reinforced concrete thin-wall cylindrical well template system has smooth appearance and fixed internal and external air pressure difference, can ensure the structure forming quality, and the concrete forming on the inner wall of the cylinder body can reach the clear water concrete standard and has good appearance quality;
3. the lining frame and the rubber air bag core mold of the reinforced concrete thin-wall cylindrical well template system can be shaped, thereby being convenient for mass production in factories at different places and storage and transportation;
4. the reinforced concrete thin-wall cylindrical well template system is simple in structure and low in manufacturing cost, and the rubber air bag core mold can be recycled, so that the material consumption is reduced, the cost is reduced, the energy is saved, the environment is protected, and the reinforced concrete thin-wall cylindrical well template is easy to popularize and apply.
The technical characteristics of the reinforced concrete thin-wall cylindrical well formwork system and the method for casting the thin-wall cylindrical well by using the same are further described below by combining the attached drawings and the embodiment.
Drawings
The structural schematic diagram of the reinforced concrete thin-wall cylindrical well template system in figures 1-2 is as follows:
FIG. 1 is a front view (half section), and FIG. 2 is a top view;
FIG. 3 is a schematic view of the structure of the lining frame (three-dimensional effect);
FIG. 4 is a schematic diagram of a core mold structure of a rubber bladder (cubic effect);
FIG. 5 is a schematic structural view (half section) of a reinforced concrete thin-walled cylindrical well template system mounted on a bottom template;
in the figure:
1-lining frame, 11-top reinforcing ring, 12-vertical rod, 13-bottom reinforcing ring, 2-thin-wall cylinder well reinforcement framework, 21-circular horizontal reinforcement, 22-vertical reinforcement, 23-round platform base reinforcement, 3-rubber air bag core mold, 31-standard air valve, 32-core mold top surface, 33-core mold circumferential surface, 34-core mold bottom surface, 4-external template, 5-bottom template and 6-wood purlin.
Detailed Description
Example one
A reinforced concrete thin-wall cylindrical well template system comprises an outer template 4, an inner lining frame 1 and a core mold; the outer template 4 is spliced at the periphery of the thin-wall cylinder well reinforcement framework, the inner lining frame 1 is arranged in the inner cavity of the thin-wall cylinder well reinforcement framework, and the core mold is arranged in the inner cavity of the inner lining frame;
the lining frame 1 comprises a top reinforcing ring 11, a bottom reinforcing ring 13 and upright rods 12 connected between the top reinforcing ring 11 and the bottom reinforcing ring 13, the upright rods are uniformly arranged, and the distance between the two upright rods is not more than 100 mm; the appearance size of the inner lining frame is consistent with the inner space size of the thin-wall barrel well, namely the size of the top reinforcing ring is consistent with the inner diameter size of the well head of the thin-wall barrel well, and the size of the bottom reinforcing ring is consistent with the inner diameter size of the well bottom of the thin-wall barrel well; according to the shape of the thin-wall barrel well, the lining frame can be a straight barrel type structure with the same size from top to bottom, and can also be a conical barrel type structure with the same size from top to bottom.
The core mold is a rubber airbag core mold 3 and comprises a core mold top surface 32, a core mold circumferential surface 33 and a core mold bottom surface 34, a standard air valve 31 is arranged in the center of the core mold top surface, and after the rubber airbag core mold formed by hot-melting connection of the core mold top surface, the core mold circumferential surface and the core mold bottom surface is filled with air, the outer circle size of the rubber airbag core mold is consistent with the size of the inner space of the inner lining frame, namely the rubber airbag core mold is just filled with the inner space of the inner.
Example two
A pouring construction method of a reinforced concrete thin-wall cylinder well adopts the embodiment I, and comprises the following steps:
s1 designing a structural construction big sample drawing according to the size of the thin-wall cylindrical well; the construction proof chart comprises: the structural section of the reinforced concrete thin-wall barrel well template, the structural top view of the reinforced concrete thin-wall barrel well template, the structural elevation of the lining frame and the elevation of the rubber air bag core mold;
s2, manufacturing a lining frame:
s21, compiling a blanking list including the length and the number of the vertical rods according to the structure construction big sample drawing;
s22, welding a top reinforcing ring and a bottom reinforcing ring, welding upright rods between the top reinforcing ring and the bottom reinforcing ring, uniformly arranging the upright rods, ensuring that the distance between the two upright rods is not more than 100mm, and ensuring that the appearance size of the formed lining frame is consistent with the inner space size of the thin-wall tube well; according to the shape of the thin-wall barrel well, if the thin-wall barrel well is in a straight barrel shape, the lining frame is in a straight barrel shape with the same size from top to bottom, and if the thin-wall barrel well is in a cone barrel shape with the small top and the big bottom, the lining frame is in a cone barrel shape with the small top and the big bottom.
S23, cleaning welding slag of the welding seam of the lining frame, and painting red lead anti-rust paint for one time;
s3 manufacturing a rubber air bag core mold:
s31, reducing the size of the large-scale drawing for structure construction by 20mm, and then performing CAD lofting;
s32 cutting the bottom surface, the top surface and the circumferential surface of the core mould by rubber pads according to the lofting size;
a standard air valve is arranged in the middle of the top surface of the S33 core die in a hole;
s34, connecting the top surface of the core mould, the circumferential surface of the core mould and the bottom surface of the core mould into a rubber air bag core mould in a hot melting mode, wherein the size of an outer circle of the formed rubber air bag core mould is consistent with the size of the inner space of the lining frame after the rubber air bag core mould is filled with air, if the lining frame is in a straight barrel shape, the rubber air bag core mould is in a straight barrel shape with the same size from top to bottom, and if the lining frame is in a tapered barrel shape with the same size from top to bottom, the rubber air bag core mould is in a tapered barrel shape with the small top and the large bottom;
s4, erecting a full scaffold according to the construction scheme special for installing and dismantling the template engineering, and carrying out shelf body acceptance inspection after the erection is finished;
s5, mounting wood purlin and a bottom template:
s51, binding the wood purlin on the full framing scaffold by using an iron wire and fixing;
s52, paving the bottom template on the wood purlin, nailing the iron nails firmly, and performing board surface elevation acceptance inspection;
s6, assembling lining frames on site, and binding reinforcement framework steel bars of the thin-wall barrel well:
s61, positioning the thin-wall cylindrical well structure on the bottom template, and marking;
s62, arranging and fixing a lining frame according to the marked position;
s63, binding the annular horizontal reinforcement and the vertical reinforcement at the inner layer by layer from bottom to top to form a reinforcement framework at the inner side of the structure;
s64, binding outer-layer circular horizontal reinforcing bars and vertical reinforcing bars layer by layer from bottom to top to form a reinforcing bar framework at the outer side of the structure;
s65, connecting the inner side reinforcement framework and the outer side reinforcement framework together from the upper part, binding the circular truncated cone base reinforcement from the extension of the bottom of the outer side reinforcement framework of the structure, and finally forming the thin-wall cylinder well reinforcement framework whole;
s66, the steel bar binding screw threads uniformly face the interior of the thin-wall cylinder well reinforcement framework, so that the rubber air bag core mold is prevented from being scratched and punctured by subsequent operation;
s7 installing a rubber air bag core mould: placing the rubber air bag core mold into the lining frame, filling air to ensure that the rubber air bag core mold just fills the inner space of the lining frame (but the height is 200mm higher than the thin-wall barrel well), and tightly blocking a standard air valve;
s8, assembling and reinforcing an outer template at the periphery of the thin-wall cylindrical well reinforcing rib framework;
s9, pouring concrete of the thin-wall tube well structure, wherein the vibrating rod avoids directly touching a core mould during vibrating so as to prevent the core mould from moving, a concrete surface is leveled after the concrete of the thin-wall tube well structure is poured, and the reinforced concrete thin-wall tube well structure is formed;
s10 core mould removing
And after the reinforced concrete thin-wall cylindrical well structure is formed for 24 hours, and the concrete compressive strength of the thin-wall cylindrical well structure reaches 1.0Mpa, performing form removal operation, unscrewing a standard air valve at the top of a rubber air bag core mold to release air, manually drawing out the rubber air bag core mold, and performing surface cleaning to leave a thin-wall cylindrical well for construction.
In the step S2 of manufacturing the lining frame, the upright rod, the top reinforcing ring and the bottom reinforcing ring are made of HBP300 phi 10 steel bars, the welding rod is an E43 type welding rod, the steel bars and the welding rod are sampled and inspected, and the welding operation is performed after the steel bars and the welding rod are qualified.
Before the step S7 "installing the rubber bladder core mold", soap water is uniformly applied to the surface of the rubber bladder core mold to facilitate demolding.
In step S7, "install rubber air bag core mold", when the rubber air bag core mold is inflated, a small electric air compressor connected with a barometer is used to inflate the core mold, the rubber air bag core mold is properly adjusted to be centered and vertical during inflation, the inflation is stopped when the designed air pressure value is reached in the rubber air bag core mold, and at the same time, the standard air valve at the top of the core mold is closed, and the inflation pipe is disconnected.
The designed air pressure value is the lateral pressure of the concrete of the thin-wall cylindrical well to the template, and the lateral pressure of the concrete to the template is calculated according to a formula listed in item 4.1.1 of technical Specification for safety of building construction templates JGJ 162-2008.
Attached: item 4.1.1 of technical Specification for safety of construction formworks JGJ162-2008 about calculation formula of side pressure of concrete to formworks:
f =0.22 γ cto β 1 β 2V ^ xa F = γ c H (the smaller of the two formulae): f =0.22 γ cto β 1 β 2V ^ xa F = γ c H (the smaller of the two formulae): in the formula: f-lateral pressure of newly poured concrete to form, kN/m2(ii) a Gammac-gravity density of concrete, kN/m2(ii) a the initial setting time of the to-newly cast concrete can be determined according to actual measurement, and when test data is lacked, the calculation can be carried out by adopting the formula of to =200/(T +15), wherein T is the temperature of the concrete; v, the pouring speed of concrete is m/h; h, calculating the total height m from the concrete side pressure calculation position to the top surface of the newly cast concrete; beta 1-additive influences the correction coefficient, and the value is 1.0 when the additive is not added, and 1.2 when the additive with the retarding function is added; beta 2-a concrete slump influence correction coefficient, and when the slump is less than 30mm, taking 0.85; taking 1.0 when the slump is 50-90 mm; and taking 1.15 when the slump is 110-150 mm.
Claims (6)
1. The utility model provides a reinforced concrete thin wall tube well template system, includes exterior sheathing (4), its characterized in that: the lining frame also comprises a lining frame (1) and a core mould; the outer template (4) is spliced at the periphery of the thin-wall cylinder well reinforcement framework, the lining frame (1) is arranged in the inner cavity of the thin-wall cylinder well reinforcement framework, and the core mold is arranged in the inner cavity of the lining frame;
the lining frame (1) comprises a top reinforcing ring (11), a bottom reinforcing ring (13) and upright rods (12) connected between the top reinforcing ring (11) and the bottom reinforcing ring (11), the upright rods are uniformly arranged, and the distance between the two upright rods is not more than 100 mm; the appearance size of the inner lining frame is consistent with the inner space size of the thin-wall barrel well, namely the size of the top reinforcing ring is consistent with the inner diameter size of the well head of the thin-wall barrel well, and the size of the bottom reinforcing ring is consistent with the inner diameter size of the well bottom of the thin-wall barrel well;
the core mold is a rubber airbag core mold (3) and comprises a core mold top surface (32), a core mold circumferential surface (33) and a core mold bottom surface (34), a standard air valve (31) is arranged in the center of the core mold top surface, and the rubber airbag core mold formed by hot-melting connection of the core mold top surface, the core mold circumferential surface and the core mold bottom surface is filled with air, so that the diameter of the outer circle of the rubber airbag core mold is consistent with the inner diameter of the thin-wall cylinder well, and the height.
2. A pouring construction method of a reinforced concrete thin-wall cylindrical well is characterized by comprising the following steps: the method is a construction method for pouring the reinforced concrete thin-wall cylindrical well by adopting the reinforced concrete thin-wall cylindrical well template system of claim 1, and comprises the following steps:
s1 designing a structural construction big sample drawing according to the size of the thin-wall cylindrical well; the construction proof chart comprises: the structural section of the reinforced concrete thin-wall barrel well template, the structural top view of the reinforced concrete thin-wall barrel well template, the structural elevation of the lining frame and the elevation of the rubber air bag core mold;
s2, manufacturing a lining frame:
s21, compiling a blanking list including the length and the number of the vertical rods according to the structure construction big sample drawing;
s22, welding a top reinforcing ring and a bottom reinforcing ring, welding upright rods between the top reinforcing ring and the bottom reinforcing ring, uniformly arranging the upright rods, ensuring that the distance between the two upright rods is not more than 100mm, and ensuring that the appearance size of the formed lining frame is consistent with the inner space size of the thin-wall tube well;
s23, cleaning welding slag of the welding seam of the lining frame, and painting red lead anti-rust paint for one time;
s3 manufacturing a rubber air bag core mold:
s31, reducing the size of the large-scale drawing for structure construction by 20mm, and then performing CAD lofting;
s32 cutting the bottom surface, the top surface and the circumferential surface of the core mould by rubber pads according to the lofting size;
a standard air valve is arranged in the middle of the top surface of the S33 core die in a hole;
s34, connecting the top surface of the core mould, the circumferential surface of the core mould and the bottom surface of the core mould into a rubber air bag core mould in a hot melting way, wherein the size of the outer circle of the formed rubber air bag core mould is consistent with the size of the inner space of the lining frame after the rubber air bag core mould is filled with air, and the height of the formed rubber air bag core mould is 200;
s4, erecting a full scaffold according to the construction scheme special for installing and dismantling the template engineering, and carrying out shelf body acceptance inspection after the erection is finished;
s5, mounting wood purlin and a bottom template:
s51, binding the wood purlin on the full framing scaffold by using an iron wire and fixing;
s52, paving the bottom template on the wood purlin, nailing the iron nails firmly, and performing board surface elevation acceptance inspection;
s6, assembling lining frames on site, and binding reinforcement framework steel bars of the thin-wall barrel well:
s61, positioning the thin-wall cylindrical well structure on the bottom template, and marking;
s62, arranging and fixing a lining frame according to the marked position;
s63, binding inner-layer circular horizontal reinforcing bars and vertical reinforcing bars layer by layer from bottom to top to form a reinforcing bar framework at the inner side of the structure;
s64, binding outer-layer circular horizontal reinforcing bars and vertical reinforcing bars layer by layer from bottom to top to form a reinforcing bar framework at the outer side of the structure;
s65, connecting the inner side reinforcement framework and the outer side reinforcement framework together from the upper part, binding the circular truncated cone base reinforcement from the extension of the bottom of the outer side reinforcement framework of the structure, and finally forming the thin-wall cylinder well reinforcement framework whole;
s66, the steel bar binding screw threads uniformly face the interior of the thin-wall cylinder well reinforcement framework, so that the rubber air bag core mold is prevented from being scratched and punctured by subsequent operation;
s7 installing a rubber air bag core mould: placing the rubber air bag core mold into the lining frame, filling air, filling the air in the lining frame, and tightly blocking the standard air valve;
s8, assembling and reinforcing an outer template at the periphery of the thin-wall cylindrical well reinforcing rib framework;
s9, pouring concrete of the thin-wall tube well structure, wherein the vibrating rod avoids directly touching a rubber air bag core mould during vibrating so as to prevent the core mould from moving, the concrete surface is leveled after the concrete of the thin-wall tube well structure is poured, and the reinforced concrete thin-wall tube well structure is formed;
s10, removing the core mould; and after the reinforced concrete thin-wall cylindrical well structure is formed for 24 hours, and the concrete compressive strength reaches 1.0Mpa, performing formwork removal operation, unscrewing a standard air valve at the top of a rubber air bag core mold, deflating, manually drawing out the rubber air bag core mold, and performing surface cleaning for lower thin-wall cylindrical well construction.
3. The pouring construction method of the reinforced concrete thin-wall cylindrical well as claimed in claim 2, characterized in that: in the step S2 of manufacturing the lining frame, the upright rod, the top reinforcing ring and the bottom reinforcing ring are made of HBP300 phi 10 steel bars, welding rods are E43 type welding rods, the steel bars and the welding rods are sampled and inspected firstly, and welding operation is carried out after the steel bars and the welding rods are qualified.
4. The pouring construction method of the reinforced concrete thin-wall cylindrical well as claimed in claim 2, characterized in that: before the step S7 "installing the rubber bladder core mold", soap water is uniformly applied to the surface of the rubber bladder core mold to facilitate demolding.
5. The pouring construction method of the reinforced concrete thin-wall cylindrical well as claimed in claim 4, wherein: in step S7, "install rubber air bag core mold", when the rubber air bag core mold is inflated, a small electric air compressor connected with a barometer is used to inflate the core mold, the rubber air bag core mold is properly adjusted to be centered and vertical during inflation, the inflation is stopped when the designed air pressure value is reached in the rubber air bag core mold, and at the same time, the standard air valve at the top of the core mold is closed, and the inflation pipe is disconnected.
6. The pouring construction method of the reinforced concrete thin-wall tube well as claimed in claim 5, characterized in that: the designed air pressure value is the lateral pressure of the concrete of the thin-wall cylindrical well to the template, and the lateral pressure of the concrete to the template is calculated according to a formula listed in item 4.1.1 of technical Specification for safety of building construction templates JGJ 162-2008.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988749.4A CN110700581A (en) | 2019-10-17 | 2019-10-17 | Reinforced concrete thin-wall cylindrical well template system and method for pouring thin-wall cylindrical well by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988749.4A CN110700581A (en) | 2019-10-17 | 2019-10-17 | Reinforced concrete thin-wall cylindrical well template system and method for pouring thin-wall cylindrical well by using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110700581A true CN110700581A (en) | 2020-01-17 |
Family
ID=69200395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910988749.4A Pending CN110700581A (en) | 2019-10-17 | 2019-10-17 | Reinforced concrete thin-wall cylindrical well template system and method for pouring thin-wall cylindrical well by using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110700581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379458B (en) * | 2020-03-13 | 2021-07-20 | 兰州理工大学 | Design method and structure of concrete rectangular liquid storage structure with large height-width ratio |
| WO2021213099A1 (en) * | 2021-02-22 | 2021-10-28 | 中铁九局集团第四工程有限公司 | Structure and method for reinforcing manhole cover anchored with existing road surface foundation by means of dowel bars |
-
2019
- 2019-10-17 CN CN201910988749.4A patent/CN110700581A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379458B (en) * | 2020-03-13 | 2021-07-20 | 兰州理工大学 | Design method and structure of concrete rectangular liquid storage structure with large height-width ratio |
| WO2021213099A1 (en) * | 2021-02-22 | 2021-10-28 | 中铁九局集团第四工程有限公司 | Structure and method for reinforcing manhole cover anchored with existing road surface foundation by means of dowel bars |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205969436U (en) | Horizontal many storekeepers corridor mould | |
| CN110700581A (en) | Reinforced concrete thin-wall cylindrical well template system and method for pouring thin-wall cylindrical well by using same | |
| CN109989525B (en) | Y-shaped composite supporting structure and construction method thereof | |
| CN104746639A (en) | Prefabricated bay window structure installed on laminated wall board and installing method | |
| CN106193286A (en) | Manufacture method based on the assembling frame beam that 3D prints | |
| CN108755972B (en) | Foot pad for prefabricated part and using method thereof | |
| CN108930404B (en) | Unit type adjustable special-shaped curved surface formwork supporting system and pouring forming method | |
| CN103556819A (en) | Construction method for reserving constructional column holes in beam plate | |
| CN205989416U (en) | A kind of horizontal single storekeeper corridor mould | |
| CN111379359A (en) | Building 3D printed wall column structure and construction method thereof | |
| CN108437169A (en) | Residential fire flue makes mold and its application method | |
| CN204456428U (en) | A kind of entirety being installed on composite wallboard is waftd window | |
| CN107366353A (en) | A kind of assembled steel reinforced concrete frame column with variable cross-sections and its construction method | |
| CN213390464U (en) | Gutter inlet forming tool | |
| CN112411798A (en) | Synchronous construction method for prefabricated guide wall and main structure of toilet | |
| CN207140033U (en) | Assembly concrete exterior wall board mold | |
| CN205969435U (en) | Piping lane mould is assembled in horizontal many storehouses | |
| CN216609427U (en) | Mould for manufacturing concrete hollow column | |
| CN215319424U (en) | Prefabricated post preparation mould device and prefabricated post | |
| CN206048468U (en) | A kind of horizontal piping lane mould | |
| CN211548778U (en) | Reinforced concrete thin-wall cylindrical well template system | |
| CN104453217A (en) | Elevator shaft whole formwork lifting construction method | |
| CN211873406U (en) | Precast concrete hollow wall structure | |
| CN106166790B (en) | A kind of horizontal multiple-chamber assembly piping lane mold | |
| CN207376966U (en) | A kind of sleeve barrel fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |