CN111456289A - Construction method of assembled steel mesh integrated composite wall - Google Patents
Construction method of assembled steel mesh integrated composite wall Download PDFInfo
- Publication number
- CN111456289A CN111456289A CN202010415781.6A CN202010415781A CN111456289A CN 111456289 A CN111456289 A CN 111456289A CN 202010415781 A CN202010415781 A CN 202010415781A CN 111456289 A CN111456289 A CN 111456289A
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- steel mesh
- templates
- fixing
- grouting
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/001—Corner fastening or connecting means for forming or stiffening elements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
Abstract
The invention relates to the technical field of building construction, in particular to a construction method of an assembled steel mesh integrated composite wall, which aims to provide a novel scientific and environment-friendly construction method with simple construction and shorter period and meeting the requirements of modern buildings, and adopts the technical scheme that the method comprises the following steps of ⑴ accessory installation, ⑵ keel installation, ⑶ steel mesh installation, ⑷ flat cable, ⑸ fixed template, ⑹ grouting, ⑺ secondary fixed template, ⑻ secondary grouting and ⑼ template dismantling, and has the advantages of reducing construction procedures, lowering cost, greatly shortening construction period and being higher in environment-friendly degree.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of an assembled steel mesh integrated composite wall.
Background
With the increasing development of modern science and technology, new materials and new processes are changed day by day, green buildings become a new trend of the building industry, assembly type buildings in the green buildings start late and develop fast, and the advantages of being green, environment-friendly, low in cost and convenient to construct are incomparable with other building methods.
The assembled steel wire netting wall structure before adopts inside hollow structure, need whitewash the surface in this structure work progress, and specific whitewash the method and be: spraying the slurry (spraying the slurry on the surface of the steel mesh wall) → air drying (dryness is more than 90%) → backing (increasing the thickness) → leveling (leveling the wall surface) → scraping white (lime scraping white). The construction period of the prior assembled steel net wall is long, many months are needed, the working procedures are more, the comprehensive cost is higher and the like in the construction process because the painting step is required.
After the new crown epidemic outbreak occurs, certain defects existing in dealing with emergencies are reflected, a mature process method is urgently needed in the building field, and an assembly type building construction method capable of greatly shortening the construction period, saving the cost and the like becomes a current trend and need.
Disclosure of Invention
The invention aims to provide a novel construction method of an assembled wall body, which is scientific and environment-friendly, simple in construction, short in period and capable of meeting the requirements of modern buildings.
In order to achieve the purpose, the invention adopts the technical scheme that: a construction method of an assembled steel mesh integrated composite wall specifically comprises the following steps:
⑴, mounting fittings, namely mounting angle iron fittings on the periphery of the wall;
⑵, keel installation, namely installing special-shaped keels, wherein the keels are vertically arranged at intervals, so that the upper and lower parts of the keels are fixed with angle iron, and the distance between the two special-shaped keels is 45-70 cm;
⑶, mounting steel mesh, namely fixing steel mesh on two sides of the special-shaped keel;
⑷, arranging wires and water inside the steel mesh;
⑸, fixing the templates, namely fixing the templates on two sides of the steel mesh for the first time, wherein the height of the templates is preferably 2.0-2.5, and the specific fixing method is that a U-shaped pressing piece or a square tube is fixed at the corresponding part of each keel, and the U-shaped pressing piece or the square tube is fixed by using a taper tail screw at an interval of 30-35 cm from bottom to top;
⑹, grouting, namely grouting the prepared cement mortar into the steel mesh wall to reach the corresponding height of the template and stopping grouting;
⑺, secondary fixing templates, namely, fixing templates on two sides of the steel mesh for the second time, and fixing the templates on the upper parts of the templates fixed for the first time in the same way as the first time, so that the heights of the templates are as high as the wall surface;
⑻, secondary grouting, namely performing secondary grouting after the primary grouting is statically placed and solidified for 24 hours, forming holes at the top of the template, pouring the prepared cement mortar into the steel mesh wall, and statically placing for 24 hours;
⑼, removing the template, namely removing the taper tail screw, removing the U-shaped pressing piece or the square tube, and then removing the template.
Further: the steel mesh fixing method in the step (3) has two methods, namely screw fixing or connection by using a butt-welding machine.
Further: and (4) when the length of the steel mesh is not enough in the step (3), the steel mesh needs to be lengthened and widened, and the specific lengthening and widening method is iron wire binding or C-shaped nail connection.
Further: the template material in the step (5) can be made of plastic, wood or steel.
Further: and (5) splicing the plurality of templates in the step (5) according to the construction size requirement, wherein the specific splicing method is that a U-shaped casting part or a square tube is adopted for fixing between two templates, no gap is reserved between the two templates, the U-shaped casting part or the square tube is pressed to the gap between the two templates, the U-shaped casting part or the square tube is fixed by a taper tail screw at an interval of 30-35 cm from bottom to top, and the taper tail screw is fixed on the special-shaped keel.
Further: the U-shaped casting die or the square tube is punched before construction, a first hole is punched at a distance of 0.2cm from the ground according to punching requirements, a plurality of holes are punched at a distance of 30-35 cm from the first hole in sequence until the top, the first hole is used for fixing angle iron, a keel and a template, the strength is increased, and the second hole is used for fixing the template to the keel.
Further: the grouting material is prepared according to specific specifications, and specifically comprises the following components in parts by weight per cubic meter: cement: the cement foaming agent is 1:1 (0.001-0.003), and the most preferable is 400kg/m water3Cement 400kg/m31kg/m cement foaming agent3。
Further, the grouting material can be replaced by 400kg of cement, 300kg of sand, 400kg of water, 5kg of foam particles, 300kg of construction waste, 0.5kg of early strength agent and 50kg of ceramsite according to the following weight ratio per cubic meter.
The beneficial technical effects of the invention are as follows:
⑴, after the construction method is adopted, the painting process in the prior assembly type building construction can be omitted, the construction procedures are reduced, and the labor cost is reduced;
⑵, the template, the taper tail screw, the U-shaped pressing piece and the like involved in the construction process can be reused, thereby reducing the resource waste, saving the cost and obviously improving the waste recovery utilization rate;
⑶, grouting is adopted in the construction process, so that the steel mesh wall is a solid wall, the hardness and the seismic performance of the wall are increased, the steps of guniting and painting are reduced, and the steel mesh wall manufactured by the process has smooth wall surface without cracks;
⑷, by adopting the construction process, the construction can be completed in 48 hours, which is greatly shortened compared with the previous construction period of dozens of days or even months;
⑸, in the prior art, when the processes of guniting, bottoming, leveling and the like meet bad weather such as rainy days, the finishing can be carried out only, the construction can not be carried out, the prior art is adopted, and the cement can be shaped after standing for 24 hours without guniting, bottoming and leveling, so the process of the invention has no climate distribution and can be carried out at any time;
⑹, lime and the like easily flow or drip to a construction site or in the transportation process in the processes of guniting, priming, leveling and the like in the previous process, so that construction pollution is caused, and the new process is adopted, so that the construction pollution for multiple times is reduced because the steps are not needed;
⑺ the grouting material adopted by the construction method belongs to a novel green building material, the material adopting the first formula has light weight, and the material adopting the second formula has high strength;
⑻, the construction method has wide application range, and can be used not only for building composite walls, but also for building floor plates.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a construction method of an assembled steel mesh integrated composite wall specifically comprises the following steps:
⑴, mounting fittings, namely mounting angle iron fittings on the periphery of the wall;
⑵, installing special-shaped keels, wherein the keels are vertically arranged at intervals, so that the upper and lower parts of the keels are fixed with the angle iron, and the distance between the two special-shaped keels is 60 cm;
⑶, mounting steel mesh, namely fixing the steel mesh on two sides of the special-shaped keel by using screws, and when the length of the steel mesh is not enough, extending and widening the steel mesh, wherein the specific extending and widening method is iron wire binding or C-shaped nail connection;
⑷, arranging wires and water inside the steel mesh;
⑸, fixing templates, namely fixing the templates on two sides of a steel mesh for the first time, wherein the heights of the templates are preferably 2.0-2.5, the specific fixing method is that a U-shaped pressing piece or a square pipe is fixed at the corresponding part of each keel, and the templates are fixed by using taper-tail screws at intervals of 30-35 cm from bottom to top, the templates in the step need to be spliced into a plurality of blocks according to the construction size requirement, the specific splicing method is that the two templates are fixed by using the U-shaped pressing piece or the square pipe, no gap is left between the two templates, the U-shaped pressing piece or the square pipe is pressed to the gap between the two templates, the U-shaped pressing piece or the square pipe is fixed by using the taper-tail screws at intervals of;
⑹, grouting, namely pouring the prepared cement mortar into the steel mesh wall, stopping grouting when the height of the steel mesh wall reaches the corresponding height of the template, and preparing grouting materials according to a specific specification, wherein the grouting materials are prepared according to the following weight ratio of water, cement and a cement foaming agent of 1:1:0.001 per cubic meter;
⑺, secondary fixing templates, namely, fixing templates on two sides of the steel mesh for the second time, and fixing the templates on the upper parts of the templates fixed for the first time in the same way as the first time, so that the heights of the templates are as high as the wall surface;
⑻, secondary grouting, namely performing secondary grouting after the primary grouting is statically placed and solidified for 24 hours, forming holes at the top of the template, pouring the prepared cement mortar into the steel mesh wall, and statically placing for 24 hours;
⑼, removing the template, namely removing the taper tail screw, removing the U-shaped pressing piece or the square tube, and then removing the template.
Example two:
a construction method of an assembled steel mesh integrated composite wall specifically comprises the following steps:
⑴, mounting fittings, namely mounting angle iron fittings on the periphery of the wall;
⑵, installing special-shaped keels, wherein the keels are vertically arranged at intervals, so that the upper and lower parts of the keels are fixed with the angle iron, and the distance between the two special-shaped keels is 70 cm;
⑶, mounting steel mesh, namely fixing the steel mesh on two sides of the special-shaped keel by using a butt-welding machine, and when the length of the steel mesh is not enough, extending and widening the steel mesh, wherein the specific extending and widening method is iron wire binding or C-shaped nail connection;
⑷, arranging wires and water inside the steel mesh;
⑸, fixing templates, namely fixing the templates on two sides of a steel mesh for the first time, wherein the heights of the templates are preferably 2.0-2.5, the specific fixing method is that a U-shaped pressing piece or a square pipe is fixed at the corresponding part of each keel, and the templates are fixed by using taper-tail screws at intervals of 30-35 cm from bottom to top, the templates in the step need to be spliced into a plurality of blocks according to the construction size requirement, the specific splicing method is that the two templates are fixed by using the U-shaped pressing piece or the square pipe, no gap is left between the two templates, the U-shaped pressing piece or the square pipe is pressed to the gap between the two templates, the U-shaped pressing piece or the square pipe is fixed by using the taper-tail screws at intervals of;
⑹, grouting, namely pouring the prepared cement mortar into the steel mesh wall, stopping grouting when the height of the steel mesh wall reaches the corresponding height of the template, and preparing grouting materials according to a specific specification, wherein the grouting materials are prepared according to the following weight ratio of water, cement and a cement foaming agent of 1:1:0.002 per cubic meter;
⑺, secondary fixing templates, namely, fixing templates on two sides of the steel mesh for the second time, and fixing the templates on the upper parts of the templates fixed for the first time in the same way as the first time, so that the heights of the templates are as high as the wall surface;
⑻, secondary grouting, namely performing secondary grouting after the primary grouting is statically placed and solidified for 24 hours, forming holes at the top of the template, pouring the prepared cement mortar into the steel mesh wall, and statically placing for 24 hours;
⑼, removing the template, namely removing the taper tail screw, removing the U-shaped pressing piece or the square tube, and then removing the template.
Example three:
a construction method of an assembled steel mesh integrated composite wall specifically comprises the following steps:
⑴, mounting fittings, namely mounting angle iron fittings on the periphery of the wall;
⑵, keel installation, namely installing special-shaped keels, wherein the keels are vertically arranged at intervals, so that the upper and lower parts of the keels are fixed with the angle iron, and the distance between the two special-shaped keels is 45 cm;
⑶, mounting steel mesh, namely fixing the steel mesh on two sides of the special-shaped keel by using a butt-welding machine, and when the length of the steel mesh is not enough, extending and widening the steel mesh, wherein the specific extending and widening method is iron wire binding or C-shaped nail connection;
⑷, arranging wires and water inside the steel mesh;
⑸, fixing templates, namely fixing the templates on two sides of a steel mesh for the first time, wherein the heights of the templates are preferably 2.0-2.5, the specific fixing method is that a U-shaped pressing piece or a square pipe is fixed at the corresponding part of each keel, and the templates are fixed by using taper-tail screws at intervals of 30-35 cm from bottom to top, the templates in the step need to be spliced into a plurality of blocks according to the construction size requirement, the specific splicing method is that the two templates are fixed by using the U-shaped pressing piece or the square pipe, no gap is left between the two templates, the U-shaped pressing piece or the square pipe is pressed to the gap between the two templates, the U-shaped pressing piece or the square pipe is fixed by using the taper-tail screws at intervals of;
⑹ grouting, namely pouring the prepared cement mortar into the steel mesh wall to achieve the aim ofStopping grouting until the height of the template corresponds to the height of the template, and blending grouting materials according to a specific specification, wherein the grouting materials are prepared by mixing water with the weight ratio of 400kg/m per cubic meter3Cement 400kg/m31kg/m cement foaming agent3；
⑺, secondary fixing templates, namely, fixing templates on two sides of the steel mesh for the second time, and fixing the templates on the upper parts of the templates fixed for the first time in the same way as the first time, so that the heights of the templates are as high as the wall surface;
⑻, secondary grouting, namely performing secondary grouting after the primary grouting is statically placed and solidified for 24 hours, forming holes at the top of the template, pouring the prepared cement mortar into the steel mesh wall, and statically placing for 24 hours;
a) removing the template: and (4) removing the taper tail screw, removing the U-shaped pressing piece or the square tube, and then removing the template.
The template adopted in the above embodiments 1 to 3 is made of plastic, wood or steel, the specification of the template is usually 1.2m × 2.4.4 m, and 0.915m × 1.83.83 m can also be adopted, wherein the plastic is preferred because the plastic is light, has good ductility and is not easy to damage, the punching of the U-shaped pressing piece or the square pipe is completed before the construction, the punching requirement is to punch a first hole 0.2cm away from the ground, and sequentially punch a plurality of holes 30-35 cm away from the first hole until the top, the first hole is used for fixing the angle iron, the keel and the template to increase the strength, and the second hole to the last hole are used for fixing the template to the keel.
The grouting material in the above embodiments 1 to 3 can be replaced by 400kg of cement, 300kg of sand, 400kg of water, 5kg of foam particles, 300kg of construction waste, 0.5kg of early strength agent and 50kg of ceramsite according to the following weight ratio per cubic meter.
After the construction process is adopted, the painting process in the prior assembly type building construction can be omitted, the construction procedures are reduced, and the labor cost is reduced; the template, the taper tail screw, the U-shaped pressing piece and the like which are involved in the construction process can be reused, so that the resource waste is reduced, the cost is saved, and the waste recovery utilization rate is obviously improved; the construction process adopts grouting, so that the steel mesh wall is a solid wall, the hardness and the seismic performance of the wall are improved, the steps of guniting and painting are reduced, and the steel mesh wall manufactured by the process is smooth in wall surface and free of cracks; by adopting the construction process, the construction can be completed only in 48 hours, and the construction period is greatly shortened compared with the previous construction period of dozens of days or even months; in the prior art, when the processes of spraying, bottoming, leveling and the like meet bad weather such as rainy days and the like, only finishing can be carried out, and construction cannot be carried out; the processes of guniting, backing, leveling and the like in the prior art easily cause lime and the like to flow or drip to a construction site or in the transportation process during construction to cause construction pollution.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The construction method of the assembled steel mesh integrated composite wall is characterized by comprising the following steps:
⑴, mounting fittings, namely mounting angle iron fittings on the periphery of the wall;
⑵, keel installation, namely installing special-shaped keels, wherein the keels are vertically arranged at intervals, so that the upper and lower parts of the keels are fixed with angle iron, and the distance between the two special-shaped keels is 45-70 cm;
⑶, mounting steel mesh, namely fixing steel mesh on two sides of the special-shaped keel;
⑷, arranging wires and water inside the steel mesh;
⑸, fixing the templates, namely fixing the templates on two sides of the steel mesh for the first time, wherein the height of the templates is preferably 2.0-2.5, and the specific fixing method is that a U-shaped pressing piece or a square tube is fixed at the corresponding part of each keel, and the U-shaped pressing piece or the square tube is fixed by using a taper tail screw at an interval of 30-35 cm from bottom to top;
⑹, grouting, namely grouting the prepared cement mortar into the steel mesh wall to reach the corresponding height of the template and stopping grouting;
⑺, secondary fixing templates, namely, fixing templates on two sides of the steel mesh for the second time, and fixing the templates on the upper parts of the templates fixed for the first time in the same way as the first time, so that the heights of the templates are as high as the wall surface;
⑻, secondary grouting, namely performing secondary grouting after the primary grouting is statically placed and solidified for 24 hours, forming holes at the top of the template, pouring the prepared cement mortar into the steel mesh wall, and statically placing for 24 hours;
⑼, removing the template, namely removing the taper tail screw, removing the U-shaped pressing piece or the square tube, and then removing the template.
2. The construction method of an assembled steel mesh integrated composite wall as claimed in claim 1, wherein there are two methods for fixing the steel mesh in the step (3), which are screw fixing or joining by a butt-welding machine.
3. The construction method of the assembled steel mesh integrated composite wall as claimed in claim 1, wherein the connecting steel mesh is required to be lengthened and widened when the length of the steel mesh is insufficient in the step (3), and the concrete lengthening and widening method is wire binding or C-shaped nail connection.
4. The construction method of an assembled steel mesh integrated composite wall as claimed in claim 1, wherein the formwork material in step (5) can be plastic material or wood or steel material.
5. The construction method of the assembled steel mesh integrated composite wall as claimed in claim 1, wherein the formwork in the step (5) needs to be spliced into a plurality of pieces according to construction size requirements, the concrete splicing method is that a U-shaped pressing piece or a square tube is adopted to fix the two formworks, no gap is left between the two formworks, the U-shaped pressing piece or the square tube is pressed to the gap between the two formworks, the U-shaped pressing piece or the square tube is fixed by a taper tail screw at an interval of 30-35 cm from bottom to top, and the taper tail screw is fixed to the special-shaped keel.
6. The construction method of the assembled steel mesh integrated composite wall as claimed in claim 1, wherein the U-shaped casting die or the square pipe is punched before construction, the punching requires punching a first hole 0.2cm away from the ground, and punching a plurality of holes 30-35 cm away from the first hole in sequence until the top, the first hole is used for fixing angle iron, a keel and a template, so that the strength is increased, and the second hole to the last hole are used for fixing the template to the keel.
7. The construction method of the assembled steel mesh integrated composite wall as claimed in claim 1, wherein the grouting material is prepared according to specific specifications, and specifically comprises water in the following weight ratio per cubic meter: cement: the cement foaming agent is 1:1 (0.001-0.003), and the most preferable is 400kg/m water3Cement 400kg/m31kg/m cement foaming agent3。
8. The construction method of the assembled steel mesh integrated composite wall as claimed in claim 7, wherein the grouting material can be replaced by 400kg of cement, 300kg of sand, 400kg of water, 5kg of foam particles, 300kg of construction waste, 0.5kg of early strength agent and 50kg of ceramsite according to the following weight ratio per cubic meter.
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Application publication date: 20200728 |
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