CN110541505A - Method for constructing spraying-building type composite gypsum wall - Google Patents
Method for constructing spraying-building type composite gypsum wall Download PDFInfo
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- CN110541505A CN110541505A CN201910856454.1A CN201910856454A CN110541505A CN 110541505 A CN110541505 A CN 110541505A CN 201910856454 A CN201910856454 A CN 201910856454A CN 110541505 A CN110541505 A CN 110541505A
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- wall
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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
- E04B2/842—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf
- E04B2/845—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf the form leaf comprising a wire netting, lattice or the like
Abstract
the invention relates to a construction method of a spray-built composite gypsum wall. The method is characterized in that cold-formed thin-wall steel and a ribbed steel plate net are installed according to structural requirements, the shape of the cold-formed thin-wall steel and the ribbed steel plate net can be curved or straight without limitation, water and electricity pipelines are installed in advance, and a wall body reaches a preset thickness after being sprayed in layers. The construction method can replace the traditional working procedures of building a wall, grooving, pipe burying, groove supplementing, plastering, putty scraping and the like, and can finish the construction of the wall at one time. The wall spraying mortar is constructed by adopting a special mixing pump, after the wall spraying mortar powder is poured into a storage bin, a machine is started to automatically add water according to the mixing proportion to be mixed into the mortar and sprayed on a construction surface, and the construction method has no garbage and water stain on site and meets the requirement of dry operation. The wall body formed by spraying and building has the excellent performances of seamless integration, light weight, high strength, earthquake resistance, fire resistance, sound insulation, heat insulation and the like, and has no phenomena of hollowing and cracking when being used as a non-bearing inner partition wall body. And the construction speed is high and the construction period is short.
Description
Technical Field
The invention relates to a construction method of a wall building, in particular to a construction method of a spray-built composite gypsum wall.
background
in the construction method of buildings, the application of wall spraying technology is very popular, and both internal and external walls are popular. For example, chinese patent document CN105275206A discloses a building outer wall construction method, which is characterized in that: the method comprises the following steps: 1. constructing an outer surface layer of the wall; 2. laying an insulating layer; 3. positioning a wall body; 4. spraying and building a wall; 5. wall surface painting; step 1, fixing a keel system outside a building, and fixedly installing an upper decorative plate on the keel system; step 2, paving a heat-insulating layer on the inner side of the decorative plate to firmly combine the heat-insulating layer with the decorative plate and the keel system; step 3, determining the thickness and the position coordinates of the wall body and the wall body structure such as the installation position reservation of the electrical element and the like according to the house design; step 4, erecting a keel structure meeting conditions according to wall positioning, presetting reserved elements, spraying wall material and finishing the wall surface; the wall material is formed by adding water into wall material comprising gypsum, cement, polyphenyl granules, plant crushed material and additive, stirring, and spraying on site, wherein the wall material is quickly solidified, keeps certain fluidity and is suitable for spraying construction; and 5, pressing the leveled inner wall surface into a layer of grid cloth, and then painting cement mortar to form the inner wall surface.
For another example, CN206128364U announces a steel construction civil house building's shear force wall, its characterized in that: comprises a cross brace, a steel mesh, a keel system and composite gypsum slurry; the cross braces are arranged between the steel structure bearing structures and connected with the upright posts or the cross beams; the steel mesh is arranged on one side or two sides of the cross brace and is connected with the keel system; the keel system comprises a transverse keel and a vertical keel; the transverse keel is fixedly connected with the upright post or the scissor support; the vertical keel is connected with the transverse keel or the cross beam or the upright post; the composite gypsum slurry is a quick setting slurry for on-site spraying and building; the cross braces, the keel system and the steel mesh are wrapped inside the slurry by the slurry; and forming the wall after the slurry is solidified.
the inventor also discloses a hollow wall structure in CN109972771A, which is characterized in that: the light steel keel frame is arranged in the middle of the hollow wall structure, and the spray-built wall body is arranged on two sides of the hollow wall structure; the light steel keel framework consists of upper and lower light steel keel guide rails (2) and light steel keel upright columns (3), and is fixed into an integral structure through screws or shooting nails (6), and the upper and lower light steel keel guide rails (2) and the light steel keel upright columns (3) at two sides are fixedly installed with a building structural member (7) through bolts or shooting nails (1), so that the light steel keel framework and the building structural member (7) are integrated and form the supporting force of a hollow wall structure; the steel wire meshes (4) are arranged on the upper and lower guide rails (2) of the light steel keel and two side surfaces of the light steel keel upright post (3), are fixed on a light steel keel framework through screws or shooting nails (6) and are used as an attachment carrier for spraying mortar (5) on a wall body; the wall spraying mortar (5) is a single-component material which is produced in a factory according to a specific formula by taking industrial byproduct gypsum as a main raw material, automatically adding water, mixing and stirring by adopting a special mixing pump on site, continuously spraying and constructing on the steel wire mesh (4), wrapping and covering the steel wire mesh, and forming an integral seamless composite wall surface after hardening.
Also CN108775097A discloses a fire protection on steel member decorates integral structure, its characterized in that: the steel structure mortar layer comprises a steel structure member (1), a steel structure interface mortar layer (2), a steel wire mesh (3) and a wall body spraying mortar layer (4); the steel member (1) is a bearing structure of a steel structure building; the steel structure interface mortar layer (2) is applied to the surface of the mortar layer to be sprayed on the wall body to be sprayed of the steel structure (1); the steel wire mesh (3) is paved and attached to the surface of the steel structure interface mortar layer (2); the surface of the steel wire mesh (3) is sprayed with a wall body spraying mortar layer (4), and the wall body spraying mortar layer (4) completely wraps the steel member (1), the steel structure interface mortar layer (2) and the steel wire mesh (3) to form a fireproof protection and decoration integrated layer.
Furthermore, CN109972772A discloses a sound insulation wall structure, which comprises a composite wall sprayed and built on the surface A and the surface B which are independent on the two sides, and an air layer enclosed by the composite wall, wherein the air layer is arranged in the middle of the sound insulation wall structure; the spraying and building composite wall is formed by assembling and continuously spraying and building materials including a light steel keel framework, a steel wire mesh, wall spraying and building mortar and the like on site. The invention has the beneficial effects that: the two sides of the composite wall body are separately sprayed and built and the air layer is enclosed to form a solid-air-solid double-layer structure, so that the sound insulation effect is good, and the sound bridge phenomenon is avoided; the continuous spraying and building wall forming mode ensures that the spraying and building composite wall has no gaps and holes on the whole, and prevents the occurrence of air leakage and sound leakage to the maximum extent; the light steel keel and the steel wire mesh are used as frameworks to become an attachment surface and a stressed support for spraying and building mortar on the wall body, and the light steel keel and the steel wire mesh are fixed with a building structural member, can be designed according to the height, the length, the thickness and the shape of the wall body, and meet the construction requirements of any wall surface.
However, with the deep development of the wall spraying and building technology, the inventor still has innovative solutions presented by the same people in the technical field.
Disclosure of Invention
the invention aims to solve the technical problem of providing a construction method of a spray-building type composite gypsum wall. The method is suitable for the wall construction in the area with the seismic fortification intensity equal to or more than eight degrees.
therefore, the technical scheme for solving the problems is as follows: a method for constructing a spray-built composite gypsum wall is a construction method based on the spray-built composite gypsum wall, which adopts cold-formed thin-wall steel and a ribbed steel plate net as a framework, uses wall spray-built mortar as a wall filling material, and forms the composite wall in a mechanical spray-built mode, and comprises the following steps:
firstly, paying off and positioning at a wall body position strictly according to the size requirement of a construction drawing;
Step two, mounting the cold-formed thin-walled steel, namely mounting an upper guide beam and a lower guide beam according to the paying-off position and fixing the upper guide beam and the lower guide beam on a concrete structure or a steel structure by using a mechanical anchor bolt or an embedded part;
mounting an upper guide beam and a lower guide beam, namely mounting vertical upright columns and transverse interlayer beams according to a designed interval, wherein the side vertical upright columns are fixed on concrete or steel structure columns;
Step four, installing the hydroelectric sleeve and the embedded part;
Fifthly, installing a reinforced steel plate net;
Constructing a moisture-proof layer, namely pouring the moisture-proof layer with the height of 200mm along the bottom guide beam by using fine aggregate concrete, wherein the thickness of the moisture-proof layer is equal to that of the wall body to be sprayed;
Step seven, spraying mortar on the wall, namely implementing a first wall spraying process and a second wall spraying process; hanging a net, namely hanging alkali-resistant mesh cloth at the joint of the bearing wall, laying 250mm wide glass fiber mesh cloth or hot-dip galvanized steel wire mesh at the vertical joint of the beam bottom and different materials, and enabling the lap joint length of two sides to be not less than 100 mm;
Dotting and punching ribs, wherein the dotting and punching ribs are carried out on the side surfaces of the spraying and building, the ribs are on the same vertical plane, and the vertical interval is within 1500 mm;
Step ten, arranging surface layer gypsum after the wall body is dry and hard, so as to reach the plastering standard and prevent the wall surface from absorbing moisture.
further, in the seventh step, the process of spraying mortar on the wall body comprises the following steps: adjusting the mortar to a proper consistency for trial spraying, and guiding the spray gun to rapidly move back and forth along the horizontal direction at a constant speed after the trial spraying is qualified; the spraying is uniformly carried out from top to bottom, the spraying thickness is slightly higher than the standard ribs by about 1mm, the spray gun is slightly tilted when wall mortar is sprayed, the wall mortar cannot be sprayed on the wall at a right angle, the distance between the spray nozzle and the wall is 10-20 cm, and the spraying is carried out layer by layer according to the thickness of the wall and is preferably 30 mm.
Preferably, in the eight-step net hanging process, the net hanging process is preferably performed by point bonding, the distance between bonding points is 300-500mm, and the alkali-resistant mesh cloth is leveled.
preferably, in the process of spraying mortar on the wall in the seventh step, the mortar is adjusted to a proper consistency for trial spraying, and the fact that the trial spraying is qualified means that the mortar does not flow and fall after the wall is sprayed and built, and if the phenomenon of flow and fall occurs, the consistency of the mortar needs to be adjusted again.
preferably, the operation angle of the spray gun relative to the wall body in spraying the wall surface mortar in the seventh step is 0.1-30 degrees.
Compared with the prior art, the invention has the following positive effects: the cold-formed thin-wall steel and the ribbed steel plate net are installed according to the structural requirements, the bending and straightening can be realized, the shape is not limited, the water and electricity pipelines are installed in advance, and the wall body reaches the preset thickness after being sprayed in layers. The construction method can replace the traditional working procedures of building a wall, grooving, pipe burying, groove supplementing, plastering, putty scraping and the like, and can finish the construction of the wall at one time. The wall spraying mortar is constructed by adopting a special mixing pump, after the wall spraying mortar powder is poured into a storage bin, a machine is started to automatically add water according to the mixing proportion to be mixed into the mortar and sprayed on a construction surface, and the construction method has no garbage and water stain on site and meets the requirement of dry operation. The wall body formed by spraying and building has the excellent performances of seamless integration, light weight, high strength, earthquake resistance, fire resistance, sound insulation, heat insulation and the like, and has no phenomena of hollowing and cracking when being used as a non-bearing inner partition wall body. And the construction speed is high and the construction period is short.
Drawings
FIG. 1 is a schematic view of a process flow of an engineering method according to the present invention.
Detailed Description
the invention relates to a spray-built composite gypsum wall, which is a novel process method for forming the wall by spraying wall spray-built mortar on a framework by using cold-formed thin-wall section steel and a ribbed steel plate net as the framework of the wall and spraying the mortar on the framework through a mortar spraying device, and is based on the requirements of high construction speed and short construction period of an assembled building. The method can enable the wall body formed by spraying and building to have the excellent performances of seamless integrity, light weight, high strength, earthquake resistance, fire resistance, sound insulation, heat insulation, humidity regulation and the like, and the wall body can be used as a non-bearing inner partition wall body, and the effect after construction meets the process standard of no hollowing and no cracking of the wall body.
referring to fig. 1, the present embodiment provides a method for constructing a spray-built composite gypsum wall.
the construction method aims at buildings in regions with the seismic fortification intensity equal to or more than 8 degrees, and the wall thicknesses of the buildings are respectively 90mm solid walls, 120mm hollow walls, 150mm hollow walls, 200mm hollow walls and double-layer walls with the thickness of more than 150 mm. The wall spraying mortar used in the construction method is a single-component dry-mixed mixture prepared by taking industrial by-product gypsum as a main cementing material, vitrified micro-beads or expanded perlite as a lightweight aggregate and doping other mineral admixtures and functional components, and has the characteristics of controllable production, stable quality and non-combustibility. On the basis of the method for preparing the spray-built composite gypsum wall, the construction method for forming the composite wall by adopting cold-formed thin-wall section steel and a ribbed steel plate net as a framework, spraying mortar as a wall filling material and a mechanical spray-building mode comprises the following steps:
Firstly, paying off and positioning at a wall body position strictly according to the size requirement of a construction drawing;
step two, mounting the cold-formed thin-walled steel, namely mounting an upper guide beam and a lower guide beam according to the paying-off position and fixing the upper guide beam and the lower guide beam on a concrete structure or a steel structure by using a mechanical anchor bolt or an embedded part;
Mounting an upper guide beam and a lower guide beam, namely mounting vertical upright columns and transverse interlayer beams according to a designed interval, wherein the side vertical upright columns are fixed on concrete or steel structure columns;
step four, installing the hydroelectric sleeve and the embedded part;
fifthly, installing a reinforced steel plate net;
constructing a moisture-proof layer, namely pouring the moisture-proof layer with the height of 200mm along the bottom guide beam by using fine aggregate concrete, wherein the thickness of the moisture-proof layer is equal to that of the wall body to be sprayed;
Step seven, spraying mortar on the wall, namely implementing a first wall spraying process and a second wall spraying process; the concrete operation steps are that mortar is adjusted to proper consistency for trial spraying, and after the trial spraying is qualified, a spray gun is guided to rapidly move back and forth along the horizontal direction at constant speed; uniformly spraying from top to bottom, wherein the spraying thickness is slightly higher than the standard ribs by about 1mm, when wall mortar is sprayed, the spray gun slightly tilts upwards and cannot be sprayed on the wall at a right angle, the distance between the spray nozzle and the wall is 10-20 cm, and the spraying thickness is preferably 30mm according to the wall thickness in a layered mode; in the wall mortar spraying and building process in the embodiment, the qualified test spraying means that the mortar does not flow and fall after the wall is sprayed and built, if the flow and fall phenomenon occurs, the consistency of the mortar needs to be adjusted again, and the operating angle range of the spray gun relative to the wall when the wall mortar is sprayed is set to be 0.1-30 degrees.
Hanging a net, namely hanging alkali-resistant mesh cloth at the joint of the bearing wall, laying 250mm wide glass fiber mesh cloth or hot-dip galvanized steel wire mesh at the vertical joint of the beam bottom and different materials, and enabling the lap joint length of two sides to be not less than 100 mm; specifically, the hanging net is preferably point-bonded, the distance between bonding points is 300-500mm, and the alkali-resistant mesh cloth is flattened.
Dotting and punching ribs, wherein the dotting and punching ribs are carried out on the side surfaces of the spraying and building, the ribs are on the same vertical plane, and the vertical interval is within 1500 mm;
Step ten, arranging surface layer gypsum after the wall body is dry and hard, so as to reach the plastering standard and prevent the wall surface from absorbing moisture.
According to the above steps, the method according to the present embodiment can be described by the following technical route: the method comprises the following steps of paying off and positioning the wall position → installing upper and lower guide beams → installing vertical columns and interlayer beams → installing hydroelectric sleeves and embedded parts → installing a reinforced steel plate net → constructing a damp-proof layer → a first spray wall → a second spray wall → hanging alkali-resistant gridding cloth on the joint of the first spray wall and the bearing wall → dotting and reinforcing → completing spray construction → completing greasing.
in summary, the construction method of the spray-cast composite gypsum wall provided by the embodiment is a construction standard which can be established by using cold-formed thin-wall section steel and a ribbed steel plate net as a wall framework and spraying wall spray-casting mortar on the framework through a mortar spraying device to construct the wall.
Claims (5)
1. a method for constructing a spraying-building type composite gypsum wall is a construction method based on the spraying-building type composite gypsum wall, which adopts cold-formed thin-wall section steel and a ribbed steel plate net as a framework, uses wall spraying-building mortar as a wall filling material and forms the composite wall in a mechanical spraying-building mode, and is characterized in that the method comprises the following steps:
Firstly, paying off and positioning at a wall body position strictly according to the size requirement of a construction drawing;
Step two, mounting the cold-formed thin-walled steel, namely mounting an upper guide beam and a lower guide beam according to the paying-off position and fixing the upper guide beam and the lower guide beam on a concrete structure or a steel structure by using a mechanical anchor bolt or an embedded part;
Mounting an upper guide beam and a lower guide beam, namely mounting vertical upright columns and transverse interlayer beams according to a designed interval, wherein the side vertical upright columns are fixed on concrete or steel structure columns;
Step four, installing the hydroelectric sleeve and the embedded part;
fifthly, installing a reinforced steel plate net;
Constructing a moisture-proof layer, namely pouring the moisture-proof layer with the height of 200mm along the bottom guide beam by using fine aggregate concrete, wherein the thickness of the moisture-proof layer is equal to that of the wall body to be sprayed;
step seven, spraying mortar on the wall, namely implementing a first wall spraying process and a second wall spraying process; hanging a net, namely hanging alkali-resistant mesh cloth at the joint of the bearing wall, laying 250mm wide glass fiber mesh cloth or hot-dip galvanized steel wire mesh at the vertical joint of the beam bottom and different materials, and enabling the lap joint length of two sides to be not less than 100 mm;
Dotting and punching ribs, wherein the dotting and punching ribs are carried out on the side surfaces of the spraying and building, the ribs are on the same vertical plane, and the vertical interval is within 1500 mm;
step ten, arranging surface layer gypsum after the wall body is dry and hard, so as to reach the plastering standard and prevent the wall surface from absorbing moisture.
2. The method according to claim 1, wherein the seventh step is a step of spraying mortar on the wall body, which comprises the following steps: adjusting the mortar to a proper consistency for trial spraying, and guiding the spray gun to rapidly move back and forth along the horizontal direction at a constant speed after the trial spraying is qualified; the spraying is uniformly carried out from top to bottom, the spraying thickness is slightly higher than the standard ribs by about 1mm, the spray gun is slightly tilted when wall mortar is sprayed, the wall mortar cannot be sprayed on the wall at a right angle, the distance between the spray nozzle and the wall is 10-20 cm, and the spraying is carried out layer by layer according to the thickness of the wall and is preferably 30 mm.
3. the method as claimed in claim 1, wherein in the eighth step, the step of hanging the mesh comprises the step of point bonding, wherein the distance between bonding points is 300 mm and 500mm, and the alkali-resistant mesh fabric is flattened.
4. the method as claimed in claim 2, wherein in the step seven, the mortar is sprayed to a proper consistency and trial spraying is performed, and the passing trial spraying means that the mortar does not flow and drop after the wall is sprayed and built, and if the flow and drop phenomenon occurs, the consistency of the mortar needs to be adjusted again.
5. The method according to claim 1, wherein the seventh step is a step of spraying the wall mortar with the spray gun at an operating angle of 0.1 ° to 30 ° with respect to the wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910856454.1A CN110541505A (en) | 2019-09-11 | 2019-09-11 | Method for constructing spraying-building type composite gypsum wall |
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| CN201910856454.1A CN110541505A (en) | 2019-09-11 | 2019-09-11 | Method for constructing spraying-building type composite gypsum wall |
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| CN201910856454.1A Pending CN110541505A (en) | 2019-09-11 | 2019-09-11 | Method for constructing spraying-building type composite gypsum wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293856A (en) * | 2021-06-07 | 2021-08-24 | 上海恪耐新材料科技有限公司 | Construction method of fabricated building |
| CN114277960A (en) * | 2021-12-13 | 2022-04-05 | 张炜 | Construction method of cold-formed thin-wall section steel and sprayed mortar composite wall |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0996036A (en) * | 1995-10-03 | 1997-04-08 | Mitsui Constr Co Ltd | Structure of wall material or floor material for construction |
| CN105275206A (en) * | 2014-07-11 | 2016-01-27 | 郑州三迪建筑科技有限公司 | A construction method of an external wall of a building |
| CN205329910U (en) * | 2016-01-05 | 2016-06-22 | 福建同方集成住宅建设有限公司 | Whole composite wall who builds rapid hardening that spouts of shaped steel rack |
| CN108396886A (en) * | 2018-04-27 | 2018-08-14 | 上海恪耐新材料科技有限公司 | A kind of light gauge cold-formed steel shape composite gypsum light mortar interior wall wall structure and application |
| CN208455863U (en) * | 2018-04-27 | 2019-02-01 | 上海恪耐新材料科技有限公司 | A kind of gypsum insulation mortar interior wall combined wall |
-
2019
- 2019-09-11 CN CN201910856454.1A patent/CN110541505A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0996036A (en) * | 1995-10-03 | 1997-04-08 | Mitsui Constr Co Ltd | Structure of wall material or floor material for construction |
| CN105275206A (en) * | 2014-07-11 | 2016-01-27 | 郑州三迪建筑科技有限公司 | A construction method of an external wall of a building |
| CN205329910U (en) * | 2016-01-05 | 2016-06-22 | 福建同方集成住宅建设有限公司 | Whole composite wall who builds rapid hardening that spouts of shaped steel rack |
| CN108396886A (en) * | 2018-04-27 | 2018-08-14 | 上海恪耐新材料科技有限公司 | A kind of light gauge cold-formed steel shape composite gypsum light mortar interior wall wall structure and application |
| CN208455863U (en) * | 2018-04-27 | 2019-02-01 | 上海恪耐新材料科技有限公司 | A kind of gypsum insulation mortar interior wall combined wall |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293856A (en) * | 2021-06-07 | 2021-08-24 | 上海恪耐新材料科技有限公司 | Construction method of fabricated building |
| CN114277960A (en) * | 2021-12-13 | 2022-04-05 | 张炜 | Construction method of cold-formed thin-wall section steel and sprayed mortar composite wall |
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Application publication date: 20191206 |
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