CN115234007A - Method for filling light materials on two sides of I-shaped steel beam web of fabricated steel structure house - Google Patents
Method for filling light materials on two sides of I-shaped steel beam web of fabricated steel structure house Download PDFInfo
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- CN115234007A CN115234007A CN202210929785.5A CN202210929785A CN115234007A CN 115234007 A CN115234007 A CN 115234007A CN 202210929785 A CN202210929785 A CN 202210929785A CN 115234007 A CN115234007 A CN 115234007A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 112
- 239000010959 steel Substances 0.000 title claims abstract description 112
- 239000000463 material Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 claims abstract description 50
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 31
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 230000001070 adhesive effect Effects 0.000 claims abstract description 22
- 238000005187 foaming Methods 0.000 claims abstract description 20
- 229920002635 polyurethane Polymers 0.000 claims abstract description 20
- 239000004814 polyurethane Substances 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 238000004873 anchoring Methods 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 56
- 239000003513 alkali Substances 0.000 claims description 37
- 239000004744 fabric Substances 0.000 claims description 37
- 239000003365 glass fiber Substances 0.000 claims description 33
- 229920000642 polymer Polymers 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 18
- 238000005336 cracking Methods 0.000 claims description 12
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- 239000011496 polyurethane foam Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002585 base Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000005034 decoration Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 5
- 239000011433 polymer cement mortar Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 210000001015 abdomen Anatomy 0.000 claims 1
- 238000000227 grinding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000004567 concrete Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000011152 fibreglass Substances 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 239000003562 lightweight material Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/943—Building elements specially adapted therefor elongated
- E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B2001/7691—Heat reflecting layers or coatings
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
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Abstract
The invention relates to the field of energy-saving and environment-friendly construction, in particular to a method for filling light materials on two sides of an I-shaped steel beam web of a prefabricated steel structure house, which comprises the following specific steps: 1) The quality of the steel beam derusting and fireproof coating is checked and accepted, and the quality is ensured to be qualified; 2) And (4) carrying out quality inspection and acceptance on the polyurethane foaming adhesive and the heat-insulating fireproof plate entering the field. The method has simple integral construction process and convenient operation, does not need to weld anchoring lacing wires on the web plate of the I-shaped steel beam, adopts heat-insulating fireproof materials to replace light filling materials such as traditional aerated concrete and the like, can improve the fireproof effect of the I-shaped steel beam, play a role in energy conservation, simultaneously lighten the structural load of the beam body, adopts polyurethane foaming adhesive to replace traditional masonry mortar, has small construction environmental pollution and high construction speed, and effectively prevents different materials at the part of the I-shaped steel beam from shrinking and deforming.
Description
Technical Field
The invention relates to the field of energy-saving and environment-friendly construction, in particular to a method for filling light materials on two sides of an I-shaped steel beam web of a prefabricated steel structure house.
Background
With the popularization and use of assembly type buildings in recent years, steel structure houses are rapidly developed in various places. At present, steel structure houses are generally subjected to floor concrete pouring and secondary structure construction after beam column frame structures are assembled. For the assembled steel structure house, the wall surface and the ceiling must be flat and straight due to the use requirement of indoor rooms. In masonry structure construction, the two side parts of a partial steel beam web are required to be filled with light masonry, and because the linear expansion coefficients of masonry materials and steel structures are different, anchoring steel bars are usually welded at the beam web part, and then the light masonry is filled, the scheme has high construction difficulty and high cost, deformation and cracking are easily caused in the subsequent use process, and water leakage is caused at the outer wall part to influence normal use.
Therefore, there is a need to provide a new method for filling lightweight materials on both sides of the h-beam web of the prefabricated steel structure house to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for filling light materials on two sides of an I-shaped steel beam web of a prefabricated steel structure house.
The invention provides a method for filling light materials on two sides of an I-shaped steel beam web of a prefabricated steel structure house, which comprises the following steps of:
1) The quality of derusting and fireproof coating of the I-shaped steel beam is checked and accepted, and the quality is ensured to be qualified;
2) The polyurethane foaming adhesive and the heat-insulating fireproof plate entering the field are subjected to quality inspection and acceptance;
3) According to the sizes of the left and right filling areas of the I-shaped steel beam web, the thermal insulation fireproof plate is combined with the specification and size to carry out blanking manufacturing on the filling material;
4) Installing a heat-insulation fireproof plate, wherein the standard plate is 1200 x 600 in specification and size, the diagonal error is less than 2mm, the heat-insulation plate is cut by a tool knife, and the allowable deviation of the size is +/-1.5;
5) Polyurethane foaming glue is smeared at the upper edge and the lower edge of an I-shaped steel beam web plate, the cut heat-insulating fireproof plate is quickly adhered to the I-shaped steel beam web plate, and in order to ensure firm adhesion, a strip adhesion method is adopted in an adhesion method;
6) After the heat-insulation fireproof plate is adhered, flattening operation is carried out by applying a 2-meter guiding rule, flatness and firm adhesion are guaranteed, the plate is tightly squeezed between the plates, no seam is needed, a heat-insulation fireproof plate strip is plugged and ground flat because a gap which is not formed directly by cutting, and extruded foaming glue is removed in time when one area is adhered;
7) The heat-insulating fireproof plate is adhered in sections from bottom to top and transversely paved along the horizontal direction, the staggered joint of each row of plates is 1/2 of the plate length, and the local minimum staggered joint is not less than 100mm;
8) After the adhesive of the heat-preservation fireproof plate reaches the strength, the uneven parts of the joint of the plate are polished by coarse abrasive paper, the uneven parts of the joint of the plate cannot be polished in the direction parallel to the joint of the plate, and the plate scraps and floating ash are timely cleaned by a brush after polishing;
9) Smearing bottom polymer anti-crack mortar, smearing prepared polymer mortar on the surface of a heat-insulation fireproof board uniformly, wherein the thickness is 5mm, pressing alkali-resistant glass fiber gridding cloth in turn, straightening and flattening the whole alkali-resistant glass fiber gridding cloth in the horizontal direction, paying attention to the inwards curved surface of the alkali-resistant glass fiber gridding cloth, troweling the alkali-resistant glass fiber gridding cloth from the middle to the upper and lower sides to enable the alkali-resistant glass fiber gridding cloth to be attached tightly, supplementing the vacancy of the bottom mortar with the polymer mortar at the lap joint, and avoiding wrinkling, hollowing and the like of the alkali-resistant glass fiber gridding cloth,The edge warping is 160g/m for the alkali-resistant glass fiber mesh cloth 2 。
10 The steel wire mesh adopts a galvanized net with 20-0 mm meshes, and is fixed by iron sheets with expansion pipes at the interval of 250mm, the lapping width of each side of the steel wire mesh and different base layers is not less than 100mm, and the net hanging needs to be uniform and firm.
Preferably, the filling construction of the two sides of the I-shaped steel beam web of the prefabricated steel structure house consists of an adhesive layer, a heat-insulating fireproof layer, a leveling layer and an anti-cracking layer, wherein the first layer is polyurethane foam adhesive, the second layer is the heat-insulating fireproof layer, the third layer is a polymer mortar leveling layer, and the fourth layer is the anti-cracking layer.
Preferably, the polymer mortar leveling layer is formed by bottoming the polymer mortar and embedding the alkali-resistant glass fiber gridding cloth or the galvanized steel wire mesh, the alkali-resistant glass fiber gridding cloth is used for the inner wall, and the galvanized steel wire mesh base layer is used for the outer side of the outer wall.
Preferably, the heat-insulating fireproof plate is adhered to one side of the I-shaped steel beam by adopting polyurethane foaming glue, the heat-insulating fireproof plate is installed flatly and vertically and is densely filled, and after the polyurethane foaming glue reaches the strength, anti-cracking layer construction is performed.
Preferably, the alkali-resistant glass fiber mesh fabric is cut according to the length and width requirements of the working surface, the lap joint width is reserved, the lap joint width of the mesh fabric in the horizontal direction is not less than 100mm, the lap joint length of the mesh fabric in the vertical direction is not less than 80mm, and the cutting of the alkali-resistant glass fiber mesh fabric is carried out in the warp and weft directions.
Preferably, after the construction of the heat-insulating and fireproof plate at the I-shaped steel beam web part on the outer side of the outer wall is completed, the heat-insulating and fireproof plate on the inner side of the outer wall is constructed in sequence according to the division of construction operation areas, and the construction of the heat-insulating and fireproof plate at the I-shaped steel beam web part of the inner wall steel structure is the same as that of the outer wall.
Preferably, the steel wire mesh is fixed on the wall surface by special anchors, and the horizontal distance between the anchors is 300mm.
Preferably, after the steel wire mesh is fixed, polymer cement mortar is used for priming and leveling, the thickness is 6mm, the steel wire mesh is preferably covered, after the bottom layer reaches the strength, the construction of an anti-crack mortar surface layer with the thickness of 2mm is carried out, and then the construction of other decoration layers is carried out according to the design of the outer wall.
Compared with the prior art, the method for filling the light materials on the two sides of the I-shaped steel beam web of the prefabricated steel structure house, provided by the invention, has the following beneficial effects:
1. the whole construction process is simple, the operation is convenient, and the anchoring lacing wire does not need to be welded on a web plate of the steel beam.
2. The heat-insulating fireproof material is adopted to replace the traditional lightweight filling materials such as aerated concrete, so that the fireproof effect of the I-shaped steel beam can be improved, the energy-saving effect can be achieved, and the structural load of the beam body is reduced.
3. The polyurethane foaming adhesive is adopted to replace the traditional masonry mortar, and the construction method has the advantages of small construction environmental pollution, high installation precision and high construction speed.
4. Effectively preventing different materials at the I-shaped steel beam part from shrinking and deforming, ensuring that the wall surface is not easy to crack and the outer wall has good anti-seepage performance.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a filling treatment node for an I-beam web of an outer wall;
fig. 3 is a filling treatment node for an inner wall i-beam web.
Reference numbers in the figures: 1. polyurethane foam rubber; 2. a heat-insulating fireproof plate; 3. glass fiber gridding cloth; 4. steel wire mesh; 5. a polymer mortar leveling layer; 6. anchoring the bolts; 7. an anti-crack mortar surface layer; 8. an I-beam; 9. a reinforced concrete floor; 10. building an outer wall; 11. interior wall brickwork.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1 to 3, a method for filling light materials on two sides of an i-beam web of a residential building with an assembled steel structure according to an embodiment of the present invention includes the following steps:
1) The quality of the derusting and fireproof coating of the I-shaped steel beam 8 is checked and accepted, and the quality is ensured to be qualified;
2) The polyurethane foaming adhesive 1 and the heat-insulating fireproof plate 2 entering the field are subjected to quality inspection and acceptance;
3) According to the sizes of the left and right filling areas of the I-shaped steel beam 8 web plate, the thermal insulation fireproof plate 2 is combined with the specification and size for blanking the filling material;
4) Installing a heat-insulation fireproof plate 2, wherein the standard plate specification size is 1200 x 600, the diagonal error is less than 2mm, the heat-insulation plate is cut by a tool knife, and the allowable deviation of the size is +/-1.5;
5) Coating polyurethane foaming glue 1 on the upper edge and the lower edge of a web plate of the I-shaped steel beam 8, and quickly adhering the cut heat-insulation fireproof plate 2 to the web plate part of the I-shaped steel beam 8, wherein a strip adhesion method is adopted as an adhesion method for ensuring firm adhesion;
6) After the heat-insulating fireproof plate 2 is adhered, flattening operation is carried out by applying a 2-meter guiding rule, the flatness and firm adhesion of the heat-insulating fireproof plate are ensured, the plate and the plate are tightly extruded without seams, and the heat-insulating fireproof plate 2 strips are inserted and ground flat because gaps which are not directly formed by cutting are not formed;
7) The heat-insulating fireproof plate 2 is adhered in sections from bottom to top and is transversely paved along the horizontal direction, the length of each row of plates is 1/2 of the length of the plate, and the local minimum fissure of displacement is not less than 100mm;
8) After the adhesive of the heat-preservation fireproof plate 2 reaches the strength, the uneven parts of the joint of the plate are polished by coarse abrasive paper, the uneven parts of the joint of the plate cannot be polished in the direction parallel to the joint of the plate, and the plate scraps and floating ash are timely cleaned by a brush after polishing;
9) Smearing bottom polymer anti-crack mortar, evenly smearing the prepared polymer mortar on the surface of the heat-insulation fireproof plate 2 with the thickness of 5mm, then pressing in an alkali-resistant glass fiber mesh cloth 3, straightening and flattening the whole alkali-resistant glass fiber mesh cloth 3 along the horizontal direction, paying attention to the fact that the inner curved surface of the alkali-resistant glass fiber mesh cloth 3 faces inwards, smearing the alkali-resistant glass fiber mesh cloth 3 from the middle to the upper side and the lower side by a trowel to enable the alkali-resistant glass fiber mesh cloth 3 to be tightly attached, supplementing the vacant part of the bottom mortar by the polymer mortar at the lap joint part, avoiding wrinkling the alkali-resistant glass fiber mesh cloth 3, and ensuring the performance of the fireproof plate is good,The hollow bulging and edge warping are realized, and the alkali-resistant glass fiber mesh cloth 3 is 160g/m 2 ；
10 Steel wire net 4 is galvanized with 20-20 mm mesh, and is fixed by 250mm anchor bolt spacing with expansion pipes and iron sheets, the lapping width of each side of steel wire net 4 and different base layers is not less than 100mm, and the net hanging is uniform and firm.
In the embodiment of the invention, referring to fig. 2 and fig. 3, the filling construction of the lightweight material for the beam body part of the prefabricated steel structure house consists of an adhesive layer, a heat-insulating fireproof layer, a leveling layer 5 and an anti-cracking layer, wherein the first layer is a polyurethane foam adhesive 1, the second layer is a heat-insulating fireproof layer, the third layer is a polymer mortar leveling layer 5, and the fourth layer is an anti-cracking layer.
It should be noted that: adopt heat preservation fire-proof material to replace light filling materials such as traditional aerated concrete, can improve 8 fireproof effects of I-shaped steel roof beam and can play energy-conserving effect again, alleviateed roof beam body structure load simultaneously, adopt polyurethane expanded polystyrene 1 to replace traditional masonry mortar, it is little to have construction environmental pollution, and the installation accuracy is high, and construction speed is fast.
In the embodiment of the present invention, referring to fig. 2 and 3, the leveling layer 5 is a polymer mortar backing and is embedded with an alkali-resistant fiberglass mesh 3 or a steel wire mesh 4, the alkali-resistant fiberglass mesh 3 is used for an inner wall, and the base layer of the steel wire mesh 4 is used for an outer side of an outer wall;
it should be noted that: the steel wire mesh 4 is hung between the inner parts of the walls and used for reinforcing the wall surface, and the alkali-resistant glass fiber mesh 3 is used for reinforcing the wall surface coating and preventing the wall skin from falling off.
In the embodiment of the present invention, referring to fig. 2 and 3, the heat-insulating fireproof plate 2 is adhered to one side of the i-beam 8 by using the polyurethane foam adhesive 1, and the installation must be flat, vertical and densely filled, and after the polyurethane foam adhesive 1 reaches the strength, the anti-cracking layer construction is performed.
It should be noted that: the polyurethane foam rubber 1 is adopted to replace the traditional masonry mortar, and the construction method has the advantages of small construction environment pollution, high installation precision and high construction speed.
In the embodiment of the present invention, referring to fig. 2 and fig. 3, the alkali-resistant fiberglass mesh fabric 3 should be cut according to the length and width requirements of the working surface, and should have a lap width, the lap width of the alkali-resistant fiberglass mesh fabric 3 in the horizontal direction is not less than 100mm, the lap length of the alkali-resistant fiberglass mesh fabric 3 in the vertical direction is not less than 80mm, and the cutting of the alkali-resistant fiberglass mesh fabric 3 should be performed along the longitudinal direction and the latitudinal direction.
It should be noted that: alkali-resistant glass fiber net check cloth 3 is used for reinforcing wall coating, prevents that the wall skin from droing.
In the embodiment of the invention, please refer to fig. 2 and 3, after the construction of the heat-insulating and fireproof plate 2 at the web part of the i-shaped steel beam 8 on the outer side of the outer wall is completed, the heat-insulating and fireproof plate 2 on the inner side of the outer wall is constructed in sequence according to the division of the construction operation area, and the construction of the heat-insulating and fireproof plate 2 at the web part of the i-shaped steel beam 8 on the inner wall steel structure is the same as that of the outer wall;
it should be noted that: the heat-insulating fireproof plates 2 are installed on the two side buckets of the wall body, so that the fireproof effect of the I-shaped steel beam 8 is improved, the energy-saving effect is achieved, and the structural load of the beam body is reduced.
In the embodiment of the present invention, referring to fig. 2 and 3, the steel wire mesh 4 is fixed on the wall surface by using special anchor bolts 6, and the horizontal distance between the anchor bolts 6 is 300mm.
It should be noted that: through anchor 6's fixed mode, let more convenient receipt during the construction.
In the embodiment of the invention, please refer to fig. 2 and fig. 3, after the steel wire mesh 4 is fixed, the steel wire mesh is primed and leveled by polymer cement mortar, the thickness is 6mm, and the steel wire mesh 4 is preferably covered, after the bottom layer reaches the strength, the construction of the anti-crack mortar surface layer 7 with the thickness of 2mm is carried out, and then the construction of other decoration layers is carried out according to the design of the outer wall;
it should be noted that: prevent the wall from cracking and leaking and ensure the construction quality.
The principle of the invention is as follows: referring to fig. 2, firstly constructing a filling area of an external wall external side steel beam 8, coating polyurethane foaming adhesive 1 on the upper and lower parts of a web plate of an I-shaped steel beam 8 in a strip shape, then pasting a cut heat-insulating fireproof plate 2 on the I-shaped steel beam 8, fully distributing a steel wire mesh 4 in a beam length area after the foaming adhesive reaches the strength, fixing the upper end of the steel wire mesh 4 on a reinforced concrete floor slab 9 by using a special anchor bolt 6, fixing the lower end of the steel wire mesh 4 on an external wall masonry 10, bottoming by using polymer cement mortar after the steel wire mesh 4 is fixed, leveling the steel wire mesh 4 hanging area, constructing an anti-crack mortar surface layer 7 after the bottom layer reaches the strength, completing filling construction of the I-shaped steel beam 8 web area, and then performing construction of other decoration layers according to the external wall design, wherein the filling area of the external wall internal side I-shaped steel beam 8 is prepared by coating the polyurethane foaming adhesive 1 on the upper and lower parts of the I-shaped steel beam 8 in a strip shape, then pasting the cut heat-insulating fireproof plate 2 on the I-insulating fireproof plate 8 on the I-shaped steel beam 8, completing construction of the other construction layers after the polyurethane foaming adhesive 1 reaches the polyurethane beam length area, and pressing the glass fiber mesh 3, and completing the subsequent construction of the external wall construction of the I-insulating fireproof plate construction;
referring to fig. 3, the filling method of the I-shaped steel beam 8 filling areas on two sides of the inner wall masonry 11 is the same, polyurethane foam adhesive 1 is coated on the upper portion and the lower portion of the web plate of the I-shaped steel beam 8 in a strip shape, then the cut heat-insulation fireproof plate 2 is adhered to the I-shaped steel beam 8, after the strength of the polyurethane foam adhesive 1 is achieved, polymer mortar is fully scraped along the length area of the beam, meanwhile, alkali-resistant glass fiber gridding cloth 3 is pressed in with the thickness of 2mm, so that filling construction of the areas on two sides of the web plate of the I-shaped steel beam 8 is completed, and then construction of other decoration layers is performed according to the design of the outer wall;
the invention adopts polyurethane foaming glue 1 as adhesive and polyurethane heat-insulating fireproof plate 2 as filling material, and the performance of the used material meets the design requirement. After the working conditions are met, the heat-insulating fireproof plate 2 is quickly installed, after the filling material is firmly fixed, the alkali-resistant glass fiber net grid cloth 3 (the steel wire net 4) is laid on the surface of the filling material, and construction of the leveling layer 5 and the anti-cracking layer is carried out.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
1. A method for filling light materials on two sides of the abdomen of an I-shaped steel beam of a fabricated steel structure house is characterized by comprising the following specific steps:
1) The quality of derusting and fireproof coating of the I-shaped steel beam (8) is checked and accepted, and the quality is ensured to be qualified;
2) The polyurethane foaming adhesive (1) and the heat-insulating fireproof plate (2) entering the field are subjected to quality inspection and acceptance;
3) According to the sizes of the left and right filling areas of the web of the I-shaped steel beam (8), the specification and the size of the heat-insulation fireproof plate (2) are combined for blanking manufacturing of filling materials;
4) Installing a heat-insulation fireproof plate (2), wherein the standard plate has the specification and size of 1200 x 600, the diagonal error is less than 2mm, the heat-insulation fireproof plate (2) is cut by a tool knife, and the allowable deviation of the size is +/-1.5;
5) The polyurethane foaming glue (1) is smeared at the upper edge and the lower edge of a web plate of the I-shaped steel beam (8), the cut heat-insulating fireproof plate (2) is quickly adhered to the web plate part of the I-shaped steel beam (8), and in order to ensure firm adhesion, a strip adhesion method is adopted as an adhesion method;
6) After the heat-insulation fireproof plate (2) is adhered, flattening by using a 2-meter guiding rule to ensure the flatness and firm adhesion, extruding tightly between the plates without seams, inserting and grinding the heat-insulation fireproof plate (2) strips into the gaps which are not directly formed due to cutting, and removing extruded foaming glue in time after one area is adhered;
7) The heat-insulating fireproof plate (2) is transversely paved and pasted along the horizontal direction from bottom to top in sections, the staggered joint of each row of plates is 1/2 of the plate length, and the local minimum staggered joint is not less than 100mm;
8) After the adhesive of the heat-preservation fireproof plate (2) reaches the strength, the uneven parts of the joint of the plate are polished by coarse abrasive paper, the uneven parts of the joint of the plate cannot be polished in the direction parallel to the joint of the plate, and the plate scraps and floating ash are cleaned in time after polishing;
9) Smearing bottom polymer anti-crack mortar, evenly smearing the prepared polymer mortar on the surface of the heat-insulation fireproof plate (2) with the thickness of 5mm, then pressing in the alkali-resistant glass fiber mesh cloth (3), straightening and flattening the whole alkali-resistant glass fiber mesh cloth (3) along the horizontal direction, and smearing the alkali-resistant glass fiber mesh clothThe surface of the cloth (3) with the inner curve faces inwards, the alkali-resistant glass fiber mesh cloth (3) is trowelled by a trowel from the middle to the upper and lower sides to be tightly attached, the gap of the bottom layer mortar is supplemented by polymer mortar at the lap joint, the alkali-resistant glass fiber mesh cloth (3) cannot be wrinkled, hollowly bulged or warped, and 160g/m is used for the alkali-resistant glass fiber mesh cloth (3) 2 ；
10 The steel wire net (4) adopts a galvanized net with meshes of 20-0 mm, and is fixed by iron sheets with expansion pipes at intervals of 250mm, the lapping width of each side of the steel wire net (4) and different base layers is not less than 100mm, and the net hanging needs to be uniform and firm.
2. The method for filling the light materials on the two sides of the I-shaped steel beam web of the prefabricated steel structure house is characterized in that the filling construction on the two sides of the I-shaped steel beam web of the prefabricated steel structure house is composed of an adhesive layer, a heat-insulating and fireproof layer, a leveling layer (5) and an anti-cracking layer, wherein the first layer is polyurethane foam glue (1), the second layer is the heat-insulating and fireproof layer, the third layer is a polymer mortar leveling layer (5), and the fourth layer is the anti-cracking layer.
3. The method for filling light materials on both sides of the I-beam web of the fabricated steel structure house according to claim 2, wherein the polymer mortar leveling layer (5) is made of polymer mortar and embedded with alkali-resistant glass fiber mesh cloth (3) or steel wire mesh (4), the alkali-resistant glass fiber mesh cloth (3) is used for the inner wall, and the steel wire mesh (4) base layer is used for the outer side of the outer wall.
4. The method for filling the light materials on the two sides of the I-shaped steel beam web of the prefabricated steel structure house is characterized in that the heat-insulating fireproof plate (2) is adhered to one side of the I-shaped steel beam (8) by adopting the polyurethane foaming adhesive (1), the installation is required to be flat, vertical and densely filled, and the anti-cracking layer construction is carried out after the strength of the polyurethane foaming adhesive (1) is reached.
5. The method for filling light materials on two sides of an I-shaped steel beam web plate of an assembly type steel structure house according to claim 1 is characterized in that the alkali-resistant glass fiber net lattice cloth (3) is cut according to the length and width requirements of a working surface, the lap joint width is reserved, the lap joint width in the horizontal direction is not less than 100mm, the lap joint length in the vertical direction is not less than 80mm, and the cutting is carried out along the warp direction and the weft direction.
6. The method for filling the light materials on the two sides of the web plate of the I-shaped steel beam of the prefabricated steel structure house is characterized in that after the construction of the heat-insulating fireproof plate (2) at the web plate part of the I-shaped steel beam (8) on the outer side of the outer wall is completed, the heat-insulating fireproof plate (2) on the inner side of the outer wall is constructed according to the division of construction operation areas, and the construction of the heat-insulating fireproof plate (2) at the web plate part of the I-shaped steel beam (8) of the inner wall steel structure is the same as that of the outer wall.
7. The method for filling light materials on two sides of an assembled steel structure house I-shaped steel beam web plate is characterized in that the steel wire mesh (4) is fixed on the wall surface by special anchoring nails (6), and the horizontal distance between the anchoring nails (6) is 300mm.
8. The method for filling light materials on both sides of an I-beam web of an assembled steel structure house according to claim 1, wherein the steel wire mesh (4) is fixed and then primed and leveled with polymer cement mortar to a thickness of 6mm and preferably covered on the steel wire mesh (4), and after the bottom layer reaches the strength, construction of a 2mm thick anti-crack mortar surface layer (7) is performed, and then construction of other decoration layers is performed according to the design of an external wall.
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