CN106894504B - Light assembled steel structure house and construction method thereof - Google Patents
Light assembled steel structure house and construction method thereof Download PDFInfo
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- CN106894504B CN106894504B CN201710288514.5A CN201710288514A CN106894504B CN 106894504 B CN106894504 B CN 106894504B CN 201710288514 A CN201710288514 A CN 201710288514A CN 106894504 B CN106894504 B CN 106894504B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 250
- 239000010959 steel Substances 0.000 title claims abstract description 250
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 210000001503 joint Anatomy 0.000 claims abstract description 126
- 239000004567 concrete Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 11
- 239000004568 cement Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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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
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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
- E04B1/82—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 sound 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
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
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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
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Load-Bearing And Curtain Walls (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a light assembled steel structure house and a construction method thereof, wherein the house comprises a floor slab, a wall body and doors and windows, the floor slab comprises a first steel structure frame, a first steel bar grate and a first concrete layer which are arranged on one side of the first steel structure frame, a second steel bar grate and a second concrete layer which are arranged on the other side of the first steel structure frame, a damping and sound insulation layer which is arranged between the first steel bar grate and the second steel bar grate in a lining manner, and butt joint frames which are arranged at two ends of the first steel structure frame; the wall body is provided with two layers of steel bar grate parallel to each other in the second steel structure frame, an insulating layer is arranged between the two layers of steel bar grate, a cement outer wall layer and a fireproof inner wall layer are respectively poured on two sides of the insulating layer, and the wall bodies are connected through connecting columns. The wall body, the floor slab and the connecting column are prefabricated in factories, and the connection between the wall body and the connecting column and the connection between the wall body and the floor slab are bolted, so that the site construction process is simplified, and the construction efficiency and the house quality are improved.
Description
Technical Field
The invention relates to a building structure and a construction method thereof, in particular to a light assembled steel structure house and a construction method thereof.
Background
The steel structure is one of the main building structure types, and is formed by making steel beams, steel columns, steel trusses and other components from steel sections, steel plates and the like, and connecting the components by adopting welding, bolts or rivets. The steel structure has the characteristics of high strength, good anti-seismic performance, rapidness, environmental protection and the like, and is widely applied to the fields of large-scale plants, venues, high-rise buildings and the like.
The wallboard used in the existing steel structure building is usually formed by compounding an outer panel, an outer framework, a heat insulation board, an inner framework and an inner panel, wherein the outer framework and the inner framework are usually connected with each other by welding, and when the wall bodies or the wall bodies and the floor slab are in butt joint, the steel frames of the two wall bodies are usually welded together directly or indirectly, and the welding treatment mode inevitably leads the framework or the frame to be oxidized, so that the service life of the steel structure building is shortened, and the service life of the steel structure building is correspondingly shortened.
In addition, the walls, floors and the like of the existing steel structure building are manufactured on site, the construction period is long, the cost is high, the difficulty is high, and the construction efficiency is low.
Disclosure of Invention
The invention aims to provide a light assembled steel structure house, which solves the problems of short service life, long construction period and low construction efficiency of the existing building.
The second purpose of the invention is to provide a construction method of the light-weight assembled steel structure house, so as to optimize the construction process of the steel structure building, improve the construction efficiency, shorten the construction period and prolong the service life of the house.
One of the objects of the present invention is achieved by: a light assembled steel house comprises a floor slab, a wall body and doors and windows,
the floor slab is a C-shaped steel prefabricated floor slab, and comprises a first steel structure frame, a first steel bar grate and a first concrete layer which are arranged on one side of the first steel structure frame, a second steel bar grate and a second concrete layer which are arranged on the other side of the first steel structure frame, a damping and sound insulation layer which is arranged between the first steel bar grate and the second steel bar grate in a lining manner, and butt joint frames which are arranged at two ends of the first steel structure frame; the first steel structure frame comprises two side beam frames which are arranged in parallel and a plurality of connecting beams which are arranged between the two side beam frames, and the side beam frames and the connecting beams are made of building C-shaped steel; the butt joint frame comprises a connecting rod and first butt joint fittings arranged at two ends of the connecting rod, and one end of each first butt joint fitting is welded at the end part of the side beam frame;
the wall body is characterized in that two layers of steel bar grates which are parallel to each other are arranged in a second steel structure frame, a third steel bar grate and a fourth steel bar grate are respectively arranged, an insulating layer is arranged between the two layers of steel bar grates, a cement outer wall layer is poured on the third steel bar grate, and a fireproof inner wall layer is poured on the fourth steel bar grate; the second steel structure frame is a double-layer rectangular frame body and comprises an upper beam frame and a lower beam frame which are arranged in parallel, a left vertical frame, a middle vertical frame and a right vertical frame which are sequentially arranged between the upper beam frame and the lower beam frame from left to right, wherein the upper beam frame, the lower beam frame, the left vertical frame, the middle vertical frame and the right vertical frame are rectangular strip frames, each rectangular strip frame comprises two parallel square-mouth steel pipes and a second butt joint fitting connected between the end parts of the two square-mouth steel pipes, and the upper beam frame and the lower beam frame are also provided with middle butt joint fittings; the upper beam frame and the lower beam frame are horizontally arranged, two parallel square-mouth steel pipes of the upper beam frame are positioned on the same horizontal plane, the lower beam frame is positioned right below the upper beam frame, the vertical frames are connected with the beam frames through respective butt joint fittings, the front side square-mouth steel pipes of the beam frames and the front side square-mouth steel pipes of the vertical frames form a rectangular front frame together, the rear side square-mouth steel pipes of the beam frames and the rear side square-mouth steel pipes of the vertical frames form a rectangular rear frame together, and the front frame and the rear frame form a double-layer rectangular frame body of the second steel structure frame together;
the wall body is connected through the spliced pole, the spliced pole includes four parallel arrangement's square mouth riser, is connected with the third butt joint accessory in order between the top of each square mouth riser, connects the top of four square mouth risers and forms top rectangle port, is connected with the fourth butt joint accessory in order between the bottom of each square mouth riser, connects the bottom of four square mouth risers into bottom rectangle port, forms cuboid frame stand from this.
The first butt joint accessory, the second butt joint accessory, the third butt joint accessory, the fourth butt joint accessory and the middle butt joint accessory are all provided with a plurality of mounting holes on four side walls of a section of square-mouth pipe body respectively, and the mounting holes on the two opposite side walls are opposite one to one.
The mounting holes comprise positioning holes and assembly holes, the positioning holes are round holes, and the distances from the hole centers of the positioning holes to the edges of the two sides of the square-mouth pipe body are equal; the assembly holes are strip-shaped holes, the number of the assembly holes is 2-4, the hole centers of the assembly holes are arranged on the top points of squares taking the hole centers of the positioning holes as the centers, two positioning holes of which the hole center connecting lines are arranged on the diagonal lines of the squares are parallel to each other, and two positioning holes of which the hole center connecting lines are arranged on the side lengths of the squares are perpendicular to each other.
The light-duty assembled steel structure house structure of the invention is ingenious in design, has realized swift assembly, and the assembly operation space is big, firm in connection, and stability is good, and each junction is all through bolt bolting, has avoided welding operation, can not cause the destruction to the galvanized coating on steel surface, can improve steel structure's intensity and life, and then improves steel structure building's life.
The second object of the invention is realized in that: a construction method of a light fabricated steel structure house comprises the following steps:
a. manufacturing a floor slab: cutting building C-shaped steel into side beam frames and connecting beams, arranging the two side beam frames in parallel, arranging a plurality of connecting beams perpendicular to the side beam frames between the two side beam frames, and connecting the end parts of the connecting beams with the side beam frames through spot welding, thereby forming a first steel structure frame; the two ends of the first steel structure frame are respectively welded with a butt joint frame, the butt joint frames are respectively provided with a first butt joint fitting at the two ends of the connecting rod, and one end of the first butt joint fitting is welded at the end part of the side beam frame of the first steel structure frame; filling a damping sound insulation layer in a first steel structure frame, welding a first steel bar grate on one side of the first steel structure frame, welding a second steel bar grate on the other side of the steel structure frame, pouring a first concrete layer on the first steel bar grate, and pouring a second concrete layer on the second steel bar grate to obtain the C-shaped steel precast floor slab;
b. and (3) manufacturing a wall: the method comprises the steps that second butt joint fittings are respectively connected between the end parts of two parallel square-mouth steel pipes, a rectangular bar frame is formed, one part of the rectangular bar frame is used as an upright frame, the other part of the rectangular bar frame is used as a beam frame, middle butt joint fittings are arranged in the middle of the beam frame, two beam frames are horizontally and oppositely arranged, the beam frame positioned above is an upper beam frame, the beam frame positioned below is a lower beam frame, a plurality of upright frames are vertically arranged between the upper beam frame and the lower beam frame, the upright frame positioned at the left end is a left upright frame, the upright frame positioned at the right end is a right upright frame, the upright frames positioned between the left upright frame and the right upright frame are middle upright frames, the upright frames and the beam frames are connected through the respective butt joint fittings, the front side mouth steel pipes of the beam frames and the front side mouth steel pipes of the upright frames jointly form a rectangular front frame, the front frame and the rear side mouth steel pipes of the upright frames jointly form a rectangular rear frame, a double-layer rectangular frame body of the second steel structure frame is vertically arranged between the upper beam frame and the lower beam frame, the upright frames are filled with a heat-insulating layer steel bar frame, a second steel bar layer is laid in the second steel bar layer is laid on the second steel bar layer, and a fourth steel bar layer is laid in the fire-proof steel bar wall is formed in the first steel bar layer;
c. manufacturing a connecting column: the four square-mouth risers are arranged in parallel, a third butt joint fitting is sequentially connected between the tops of the square-mouth risers, the tops of the four square-mouth risers are connected to form a top rectangular port, a fourth butt joint fitting is sequentially connected between the bottoms of the square-mouth risers, and the bottoms of the four square-mouth risers are connected to form a bottom rectangular port, so that a cuboid frame type stand column is formed, namely a connecting column;
d. and (3) mounting a wall: the method comprises the steps that connecting columns are respectively arranged at four corners of a rectangular ground, a wall body is installed between two adjacent connecting columns, the side end face of the wall body is attached to one side face of the connecting columns, a second butt joint fitting at the upper part of the side end of the wall body is opposite to a third butt joint fitting on the connecting columns, a second butt joint fitting at the bottom of the side end of the wall body is opposite to a fourth butt joint fitting on the connecting columns, the corresponding butt joint fitting is fixedly connected in a penetrating manner by using a split bolt, four-side wall bodies are sequentially installed according to the steps, and the upper edges of the wall bodies are kept consistent in height;
e. and (3) floor slab installation: installing a floor slab on the upper edge of the installed wall body, horizontally erecting the end parts of the floor slab on the upper edges of the two opposite wall bodies, enabling the second butt joint fittings on the tops of the wall bodies to correspond to the first butt joint fittings on the butt joint frames of the floor slab one by one, fixedly connecting the first butt joint fittings and the second butt joint fittings in a penetrating way by using split bolts, and fixedly connecting the first butt joint fittings between two adjacent floor slabs in a penetrating way by using the split bolts, so that the assembly of the floor slab is completed;
f. and (3) mounting doors and windows: and installing a door frame and a door at the reserved gate of the wall body, and installing a window frame and a window at the reserved window of the wall body.
In the step e, after the floor slabs are assembled, the building of one layer of house is completed, the top of the connecting column of the layer of house is connected with the second layer of connecting column, then the second layer of wall body and the second layer of floor slabs are installed according to the operation in the steps d-e, two layers of houses can be built, and more than two layers of houses can be built through repeated operation.
The first butt joint accessory, the second butt joint accessory, the third butt joint accessory, the fourth butt joint accessory and the middle butt joint accessory are all provided with a plurality of mounting holes on four side walls of a section of square-mouth pipe body respectively, and the mounting holes on the two opposite side walls are opposite one to one. The mounting holes comprise positioning holes and assembly holes, the positioning holes are round holes, and the distances from the hole centers of the positioning holes to the edges of the two sides of the square-mouth pipe body are equal; the assembly holes are strip-shaped holes, the number of the assembly holes is 2-4, the hole centers of the assembly holes are arranged on the top points of squares taking the hole centers of the positioning holes as the centers, two positioning holes of which the hole center connecting lines are arranged on the diagonal lines of the squares are parallel to each other, and two positioning holes of which the hole center connecting lines are arranged on the side lengths of the squares are perpendicular to each other.
The wall body, the floor slab and the connecting column are prefabricated in factories, field production is not needed, the quality is guaranteed, the connection between the wall body and the connecting column and the connection between the wall body and the floor slab are bolted by adopting fasteners such as bolts, the connection is quick, firm and stable, the field construction process is greatly simplified, the construction period is shortened, and the construction efficiency and the house quality are improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a floor slab (only one butt-joint frame is shown in the figure to more clearly show the structure inside the floor slab, and in practice, two butt-joint frames are arranged at two ends of a steel structure frame respectively).
Figure 3 is a schematic diagram of a connection structure of two floors.
Fig. 4 is a schematic structural view of the first docking assembly.
Fig. 5 is a schematic view of the structure of the wall.
Fig. 6 is a schematic structural view of a second steel structural frame.
Fig. 7 is a schematic structural view of the connection column.
Fig. 8 is another structural schematic view of the first docking assembly.
FIG. 9 is a schematic diagram of a connection structure of the third docking assembly and the square riser.
In the figure: 1. floor slab, 2, roof boarding, 3, wall, 4, first steel structure frame, 5, first steel bar grate, 6, second steel bar grate, 7, first concrete layer, 8, second concrete layer, 9, damping and sound insulation layer, 10, boundary beam frame, 11, connecting beam, 12, first butt joint fitting, 13, connecting rod, 14, square mouth pipe body, 15, locating hole, 16, assembly hole, 17, second steel structure frame, 18, third steel bar grate, 19, fourth steel bar grate, 20, heat insulation layer, 21, cement outer wall layer, 22, fireproof inner wall layer, 23, upper beam frame, 24, lower beam frame, 25, left vertical frame, 26, right vertical frame, 27, middle vertical frame, 28, second butt joint fitting, 29, middle butt joint fitting, 30, square mouth vertical pipe, 31, third butt joint fitting, 32, fourth butt joint fitting, 33, end plate, 34, connecting column.
Detailed Description
Example 1:
as shown in fig. 1, the invention comprises a floor slab 1, a roof board 2, a wall body 3, doors and windows and the like, wherein the roof board 2 is a roof board covered on a roof slab 1 of a roof of a house.
As shown in fig. 2, the floor slab 1 is a C-shaped steel precast floor slab 1, which uses a first steel structure frame 4 as a framework, a first steel bar grate 5 and a first concrete layer 7 are arranged on one side of the first steel structure frame 4, a second steel bar grate 6 and a second concrete layer 8 are arranged on the other side of the first steel structure frame 4, a damping and sound insulation layer 9 is lined in the first steel structure frame 4, namely between the first steel bar grate 5 and the second steel bar grate 6, and butt joint frames are respectively arranged at two ends of the steel structure frame.
The first steel structure frame 4 comprises two side beam frames 10 which are arranged in parallel and a plurality of connecting beams 11 which are connected between the two side beam frames 10 and are mutually perpendicular to the side beam frames 10, the side beam frames 10 and the connecting beams 11 are all formed by building C-shaped steel, the building C-shaped steel is a steel body with a C-shaped cross section rolled by steel plates, and a galvanized layer is attached to the surface of the steel body. The C-shaped notches of the two side beam frames 10 are opposite, and the ends of the connecting beam 11 are connected in the notches of the side beam frames 10 by fasteners such as bolts, so as to separate the spaces between the two side beam frames 10. The damping sound insulation 9 is lined in each of the space regions partitioned by the connection beams 11. The first steel bar grate 5 and the second steel bar grate 6 are respectively positioned at two sides of the first steel structure frame 4 and used for supporting a concrete layer, and the concrete layer is coated on the steel bar grate so as to ensure the integral strength of the floor slab 1.
The butt joint frame comprises a connecting rod 13 and first butt joint fittings 12 arranged at two ends of the connecting rod 13 and used for butt joint with adjacent floor slabs 1 or wallboards, the connecting rod 13 is a building steel pipe with rectangular ports, and a galvanized layer is attached to the surface of the steel pipe. As shown in fig. 4, the first butt fitting 12 has mounting holes formed on four side walls of a section of square-mouth tube 14, the ports of the square-mouth tube 14 and the side walls thereof are square, and the mounting holes on two opposite side walls are opposite one to one. The mounting hole includes a circular positioning hole 15 and four fitting holes 16 around the positioning hole 15. The positioning hole 15 is formed in the center of the side wall of the square-mouth pipe body 14, so that rapid positioning can be performed during butt joint. The assembly holes 16 are bar-shaped holes, the hole centers of the four assembly holes 16 are sequentially connected to form a square, the center of the square coincides with the center of the positioning hole 15, the diagonal line of the square coincides with the diagonal line of the side wall where the square is located, the long axes (long axes are axes parallel to the length direction of the assembly holes 16) of the two assembly holes 16 on the same side of the square are mutually perpendicular, and the long axis of one assembly hole 16 is parallel to the side. One port of the butt fitting is welded to the side wall of the connecting rod 13 and the other port is welded to the end of the side sill frame 10 of the steel frame. According to the actual requirement in the use process, an end plate 33 can be sealed at one port of the square-mouth tube body 14, and the end plate 33 is also provided with a mounting hole which is the same as that on the side wall of the square-mouth tube body 14, as shown in fig. 8.
When assembling the floor slabs 1, the side surfaces of the two floor slabs 1 are attached, so that the positioning holes 15 of the butt joint fittings on the two floor slabs 1 are opposite, at the moment, the assembly holes 16 on the side wall of one butt joint fitting and the assembly holes 16 on the side wall of the other butt joint fitting form a crisscross, the split bolts sequentially pass through the assembly holes 16 on the two butt joint fittings, and nuts are screwed on the end parts of the split bolts, so that the assembling butt joint between the floor slabs 1 is completed, as shown in fig. 3.
The floor slab adopted by the invention has the advantages of simple structure, ingenious design and convenient use, can realize rapid assembly of the floor slab in the construction process, has good integrity after assembly and firm connection, and each connecting part is bolted by bolts, so that the welding operation is avoided, the galvanized layer on the steel surface of the steel frame profile steel is not damaged, the strength and the service life of the steel frame can be improved, and the service life of the steel structure building is further prolonged. In addition, the floor slab is provided with the beam frame, has high strength and good stability, and does not need to be additionally provided with a post for supporting during construction and assembly; the butt joint is realized assembling through the butt joint frame between two adjacent floorslabs, all reserve the mounting hole on the butt joint accessory, fastening connecting pieces such as the cross-under bolt of being convenient for, and all leave suitable space between connecting rod and the butt joint accessory, be convenient for staff or construction tool get into this space in operation.
As shown in fig. 5, the wall 3 is formed by arranging two parallel steel bar grate layers in a second steel structure frame 17, namely a third steel bar grate 18 and a fourth steel bar grate 19, filling an insulation layer 20 between the two steel bar grate layers, pouring a cement outer wall layer 21 on the third steel bar grate 18, and pouring a fireproof inner wall layer 22 on the fourth steel bar grate 19.
As shown in fig. 6, the second steel structure frame 17 is a double-layered rectangular frame body including an upper beam frame 23, a lower beam frame 24, and a left stand 25, a middle stand 27, and a right stand 26 provided between the upper beam frame 23 and the lower beam frame 24 in this order from left to right. The upper beam frame 23, the lower beam frame 24, the left vertical frame 25, the right vertical frame 26 and the middle vertical frame 27 are basically identical in structure and are rectangular strip frames, and the rectangular strip frames comprise two parallel square-mouth steel pipes and a second butt joint fitting 28 connected between the end parts of the two square-mouth steel pipes, except that the rectangular strip frames of the upper beam frame 23 and the lower beam frame 24 are also provided with middle butt joint fittings 29. The second butt-joint fitting 28 and the intermediate butt-joint fitting 29 have the same structure as the first butt-joint fitting 12, and the second butt-joint fitting 28 on the beam frame has a structure with an end plate 33, two opposite side walls of the square-mouth tube 14 are respectively connected with the square-mouth steel tube (spot welding, bolt bolting can be used, preferably bolt bolting), and the end plate 33 is flush with the end edge of the square-mouth steel tube for connection with the connecting column 34. In actual use, the second docking assembly 28 on the stand may also be configured with an end plate, if desired.
The upper beam frame 23 and the lower beam frame 24 are both horizontally arranged, two square columns of the upper beam frame 23 are positioned on the same horizontal plane, two square columns of the lower beam frame 24 are positioned on the same horizontal plane, and the upper beam frame 23 and the lower beam frame 24 are vertically opposite. The butt joint fitting at the top end of the left stand 25 is fixedly connected with the butt joint fitting at the left end of the upper beam frame 23 through bolts, and the butt joint fitting at the bottom end of the left stand 25 is fixedly connected with the butt joint fitting at the left end of the lower beam frame 24 through bolts. The butt joint fitting at the top end of the right stand 26 is fixedly connected with the butt joint fitting at the right end of the upper beam frame 23 through bolts, and the butt joint fitting at the bottom end of the right stand 26 is fixedly connected with the butt joint fitting at the right end of the lower beam frame 24 through bolts. The butt-joint fittings at the top end of the middle stand 27 are connected to the middle butt-joint fittings 29 of the upper beam frame 23, and the butt-joint fittings at the bottom end of the middle stand 27 are connected to the middle butt-joint fittings 29 of the lower beam frame 24. A rectangular frame body including a plurality of vertical frames is thus formed, and the frame body is a double-layered frame body, that is, the front side port steel pipe of the upper beam frame 23, the front side port steel pipe of the lower beam frame 24, the front side port steel pipe of the left vertical frame 25, and the front side port steel pipe of the right vertical frame 26 together constitute a front frame, and the rear side port steel pipe of the upper beam frame 23, the rear side port steel pipe of the lower beam frame 24, the rear side port steel pipe of the left vertical frame 25, and the rear side port steel pipe of the right vertical frame 26 together constitute a rear frame. The front and rear double-layer frame body structure can effectively disconnect a cold and hot bridge, improve the heat insulation performance of the wall body 3, and the parts of the frame structure are fixedly connected by special butt fittings matched with fasteners, so that the whole welding operation of a steel structure is avoided, the galvanized layer on the surface of a steel pipe is not damaged, the oxidation resistance and the corrosion resistance of the steel structure frame are greatly improved, and the service life of the wall body 3 is obviously prolonged.
The third bar grate 18 is arranged in the front frame and is parallel to the plane of the front frame, and the fourth bar grate 19 is arranged in the rear frame and is parallel to the plane of the rear frame. An insulating layer 20 is filled between the two layers of reinforcing bar grates, and the insulating layer 20 can be a rock wool insulating board, an extrusion molding insulating board or a rock wool extrusion molding insulating composite board. A cement outer wall layer 21 is arranged on the front side of the heat preservation layer 20, the cement outer wall layer 21 is formed by taking a third steel bar grate 18 as a support for pouring, a fireproof inner wall layer 22 is arranged on the rear side of the heat preservation layer 20, the fireproof inner wall layer 22 is formed by taking a mixture of perlite cotton and cement as a raw material and a fourth steel bar grate 19 as a support for pouring.
The wall bodies 3 on the same layer are connected through the connecting columns 34, as shown in fig. 7, the connecting columns 34 comprise four square-mouth vertical pipes 30 which are arranged in parallel and respectively called a first square-mouth vertical pipe, a second square-mouth vertical pipe, a third square-mouth vertical pipe and a fourth square-mouth vertical pipe, and the four square-mouth vertical pipes are respectively positioned on four vertical edges of the same cuboid. A third butt joint fitting 31 is sequentially connected between the tops of the square mouth risers 30, namely, the tops of the four square mouth risers 30 are connected to form a top rectangular port; a fourth butt-joint fitting 32 is sequentially connected between the bottoms of the square mouth risers 30, namely, the bottoms of the four square mouth risers 30 are connected into bottom rectangular ports between the bottoms of the first square mouth riser and the bottom of the second square mouth riser, between the bottom of the second square mouth riser and the bottom of the third square mouth riser, between the bottom of the third square mouth riser and the bottom of the fourth square mouth riser and between the bottom of the fourth square mouth riser and the bottom of the first square mouth riser. Thus, the four square mouth risers 30, the four third docking fittings 31 and the four fourth docking fittings 32 together form a rectangular parallelepiped frame column. The structures of the third docking fitting 31 and the fourth docking fitting 32 are the same as those of the first docking fitting 12, and will not be described again here.
The third butt-joint fitting 31 (fourth butt-joint fitting 32) and the square-mouth riser 30 may be connected by directly welding the port of the third butt-joint fitting 31 (fourth butt-joint fitting 32) to the side face of the square-mouth riser 30 by spot welding, or by adopting a butt-joint fitting with end plates, wherein two opposite side walls of the butt-joint fitting are respectively connected with the side walls of the square-mouth riser 30 (the butt-joint fitting is bolted with the square-mouth risers 30 on two sides by using split bolts), as shown in fig. 9, the end plates 33 are flush with the end edges of the square-mouth riser for connection with the butt-joint fittings on other connecting posts 34.
The connecting column 34 adopted by the invention has the advantages of simple structure, ingenious design and convenient use, can realize quick butt joint between wallboards in the construction process of the steel structure building, is firm in connection, and can prevent the galvanized layer on the steel surface of the steel frame from being damaged by the welding operation of the steel frame due to bolting of all connecting parts through bolts, thereby improving the strength and the service life of the steel frame and further prolonging the service life of the steel structure building. The invention has low cost, simple and convenient manufacture, mass production and convenient popularization and application. Moreover, the connecting column 34 is a rectangular frame type column, which has four connecting surfaces, and can realize the connection of two wallboards in the same plane, the connection of two wallboards perpendicular to each other or the connection of four wallboards; all reserve the mounting hole on the butt joint accessory, fastening connecting pieces such as the cross-under bolt of being convenient for, and all leave suitable space between four square mouth risers, be convenient for staff or construction tool to get into this space in and operate.
Example 2:
the construction method of the light fabricated steel structure house comprises the following steps:
1. manufacturing a butt joint fitting: a plurality of mounting holes are respectively formed in the four side walls of the square-mouth pipe body 14, the ports and the side walls of the square-mouth pipe body 14 are square, and the mounting holes in the two opposite side walls are opposite one to one. As shown in fig. 4, the mounting hole includes a circular positioning hole 15 and four fitting holes 16 around the positioning hole 15. The positioning hole 15 is formed in the center of the side wall of the square-mouth pipe body 14, so that rapid positioning can be performed during butt joint. The assembly holes 16 are bar-shaped holes, the hole centers of the four assembly holes 16 are sequentially connected to form a square, the center of the square coincides with the center of the positioning hole 15, the diagonal line of the square coincides with the diagonal line of the side wall where the square is located, the long axes (long axes are axes parallel to the length direction of the assembly holes) of the two assembly holes 16 on the same side of the square are mutually perpendicular, and the long axis of one assembly hole 16 is parallel to the side. According to the actual requirement in the use process, an end plate 33 can be sealed at one port of the square-mouth pipe body 14, and the end plate 33 is provided with mounting holes which are the same as those on the side wall of the square-mouth pipe body 14 (the number and the distribution state of the mounting holes on the end plate are the same as those on the side wall). The fabricated butt fittings are used for floors, walls and connecting columns 34.
2. Manufacturing a floor slab: cutting building C-shaped steel into a side beam frame 10 and a connecting beam 11, arranging the two side beam frames 10 in parallel, arranging a plurality of connecting beams 11 perpendicular to the side beam frames 10 between the two side beam frames 10, and connecting the end parts of the connecting beams 11 with the side beam frames 10 through spot welding, thereby forming a first steel structure frame 4; butt-joint frames are welded at two ends of the first steel structure frame 4 respectively, the butt-joint frames are provided with first butt-joint fittings 12 at two ends of a connecting rod 13 respectively, one port edge of each first butt-joint fitting 12 is welded on the side wall of the connecting rod 13 through spot welding, and the other port edge is welded at the end part of the side beam frame 10 of the first steel structure frame 4 through spot welding; the first steel structure frame 4 is internally filled with a damping and sound-insulating layer 9, one side of the first steel structure frame 4 is welded with a first steel bar grate 5, the other side of the steel structure frame is welded with a second steel bar grate 6, the damping and sound-insulating layer 9 is clamped between the two layers of steel bar grate, a first concrete layer 7 is poured on the first steel bar grate 5, and a second concrete layer 8 is poured on the second steel bar grate 6, so that the C-shaped steel precast floor slab can be manufactured, and the C-shaped steel precast floor slab is shown in fig. 2.
3. And (3) manufacturing a wall: a second butt-joint fitting 28 is respectively connected between the end parts of two parallel square-mouth steel pipes, thereby forming a rectangular strip frame, the second butt-joint fitting 28 adopts a structure with an end plate 33, two opposite side walls of the square-mouth pipe body 14 are respectively connected with the square-mouth steel pipes (bolt bolting), and the plate surface of the end plate 33 is flush with the end edges of the square-mouth steel pipes. And one part of the rectangular strip frames are used as the vertical frames, the other part of the rectangular strip frames are used as the beam frames, the middle parts of the beam frames are also provided with middle butt joint fittings 29, and the setting interval of the middle butt joint fittings 29 is determined according to the interval between two first butt joint fittings on the butt joint frames of the floor slab. The two beam frames are horizontally and oppositely arranged, the beam frame positioned above is an upper beam frame 23, the beam frame positioned below is a lower beam frame 24, a plurality of vertical frames are vertically arranged between the upper beam frame 23 and the lower beam frame 24, the vertical frame positioned at the left end is a left vertical frame 25, the vertical frame positioned at the right end is a right vertical frame 26, the vertical frame positioned between the left vertical frame 25 and the right vertical frame 26 is a middle vertical frame 27, the vertical frames are connected with the beam frames through respective butt joint fittings, the front side opening steel pipes of each beam frame and the front side opening steel pipes of each vertical frame form a rectangular front frame together, the rear side opening steel pipes of each beam frame and the rear side opening steel pipes of each vertical frame form a rectangular rear frame together, the front frame and the rear frame together form a double-layer rectangular frame body of the second steel structure frame 17, the second steel structure frame 17 is internally filled with an insulating layer 20, the insulating layer 20 is a polystyrene board, a third steel bar grate 18 is paved in the front frame of the second steel structure frame 17, a fourth steel bar grate 19 is paved in the rear frame of the second steel structure frame 17, the insulating layer 20 is clamped between the two layers of steel bar grates, a cement outer wall layer 21 is poured on the third steel bar grate 18, and a fireproof inner wall layer 22 is poured on the fourth steel bar grate 19, so that the wall 3 is manufactured, as shown in fig. 5. According to the designed position of the drawing, a gate and a window are reserved on the wall body 3 so as to facilitate the installation of doors and windows.
4. Manufacturing a connecting column: four square-mouth risers 30 are arranged in parallel, the four square-mouth risers 30 are respectively positioned on four vertical edges of the same cuboid, a third butt joint fitting 31 is sequentially connected between the tops of the square-mouth risers 30, the tops of the four square-mouth risers 30 are connected to form a top square port, a fourth butt joint fitting 32 is sequentially connected between the bottoms of the square-mouth risers 30, the bottoms of the four square-mouth risers 30 are connected to form a bottom square port, and therefore a cuboid frame type upright with square ports is formed, namely a connecting column 34.
5. And (3) mounting a wall: the method comprises the steps that connecting columns 34 are respectively arranged at four corners of a rectangular ground according to planned positions of a drawing, a wall body 3 is installed between two adjacent connecting columns 34, the side end face of the wall body 3 is attached to one side face of the connecting columns 34, a second butt joint fitting 28 at the upper part of the side end of the wall body 3 is opposite to a third butt joint fitting 31 on the connecting columns 34, a second butt joint fitting 28 at the bottom of the side end of the wall body 3 is opposite to a fourth butt joint fitting 32 on the connecting columns 34, at the moment, the side walls or positioning holes 15 on end plates of the two opposite butt joint fittings are opposite to each other, the assembly holes 16 are crossed, the two corresponding butt joint fittings are sequentially penetrated through the assembly holes 16 by using split bolts, nuts are screwed on the end parts of the split bolts, and the two corresponding butt joint fittings are in a penetrating and fixing mode, and accordingly the installation of the wall body 3 is completed. The four-side wall bodies 3 are installed according to the steps, and the upper edges of the four-side wall bodies 3 are kept consistent in height after the installation is completed.
6. And (3) floor slab installation: the floor slab 1 is installed on the upper edge of the installed wall body 3, the floor slab 1 is horizontally erected between the upper edges of the two opposite wall bodies 3, the end edge of the first steel structure frame 4 of the floor slab 1 is erected on the inner side square mouth steel pipe of the upper beam frame 23 of the second steel structure frame 17 of the wall body 3, the connecting rods 13 on the butt joint frames of the floor slab 1 are erected on the outer side square mouth steel pipe of the upper beam frame 23, the second butt joint fittings 28 on the top of the wall body 3 are in one-to-one correspondence with the first butt joint fittings 12 on the butt joint frames of the floor slab 1, then the first butt joint fittings 12 and the second butt joint fittings 28 are in through-joint fixation by using split bolts, and the first butt joint fittings 12 between two adjacent floor slabs 1 are also through-joint fixation by split bolts (the through-joint fixation mode is same as the through-joint fixation of the butt joint fittings between the wall body 3 and the connecting columns 34), and the assembly of the floor slab 1 is completed.
After the floor slab 1 is assembled, the building of one layer of house is completed, the top of the layer of connecting column 34 is connected with the second layer of connecting column 34, then the steps 5-6 are repeated, two layers of houses can be built, and more than two layers of houses can be built through repeated operations.
7. And (3) mounting doors and windows: and installing a door frame and a door at the reserved gate of the wall body 3, and installing a window frame and a window at the reserved window of the wall body 3, thus forming the light assembly type steel structure house.
Claims (7)
1. A light assembled steel house comprises a floor slab, a roof board, a wall body and doors and windows, and is characterized in that,
the floor slab is a C-shaped steel prefabricated floor slab, and comprises a first steel structure frame, a first steel bar grate and a first concrete layer which are arranged on one side of the first steel structure frame, a second steel bar grate and a second concrete layer which are arranged on the other side of the first steel structure frame, a damping and sound insulation layer which is arranged between the first steel bar grate and the second steel bar grate in a lining manner, and butt joint frames which are arranged at two ends of the first steel structure frame; the first steel structure frame comprises two side beam frames which are arranged in parallel and a plurality of connecting beams which are arranged between the two side beam frames, and the side beam frames and the connecting beams are made of building C-shaped steel; the C-shaped notches of the two side beam frames are opposite, the end parts of the connecting beams are connected in the notches of the side beam frames, the space between the two side beam frames is separated, and the damping and sound insulation layer is padded in each space area separated by the connecting beams; the butt joint frame comprises a connecting rod and first butt joint fittings arranged at two ends of the connecting rod, and one end of each first butt joint fitting is welded at the end part of the side beam frame;
the roof board is a roof board covered on a roof floor of a roof layer of a house;
the wall body is characterized in that two layers of steel bar grates which are parallel to each other are arranged in a second steel structure frame, a third steel bar grate and a fourth steel bar grate are respectively arranged, an insulating layer is arranged between the two layers of steel bar grates, a cement outer wall layer is poured on the third steel bar grate, and a fireproof inner wall layer is poured on the fourth steel bar grate; the second steel structure frame is a double-layer rectangular frame body and comprises an upper beam frame and a lower beam frame which are arranged in parallel, a left vertical frame, a middle vertical frame and a right vertical frame which are sequentially arranged between the upper beam frame and the lower beam frame from left to right, wherein the upper beam frame, the lower beam frame, the left vertical frame, the middle vertical frame and the right vertical frame are rectangular strip frames, each rectangular strip frame comprises two parallel square-mouth steel pipes and a second butt joint fitting connected between the end parts of the two square-mouth steel pipes, and the upper beam frame and the lower beam frame are respectively provided with a middle butt joint fitting; the upper beam frame and the lower beam frame are horizontally arranged, two parallel square-mouth steel pipes of the upper beam frame are positioned on the same horizontal plane, the lower beam frame is positioned right below the upper beam frame, and the vertical frames are connected with the beam frames through respective butt joint fittings;
the wall bodies are connected through connecting columns, each connecting column comprises four square-mouth vertical pipes which are arranged in parallel, third butt joint fittings are sequentially connected between the tops of the square-mouth vertical pipes, the tops of the four square-mouth vertical pipes are connected to form top rectangular ports, fourth butt joint fittings are sequentially connected between the bottoms of the square-mouth vertical pipes, and the bottoms of the four square-mouth vertical pipes are connected to form bottom rectangular ports, so that cuboid frame type vertical columns are formed.
2. The light fabricated steel house of claim 1, wherein the first, second, third, fourth and middle butt fittings are each provided with a plurality of mounting holes on four side walls of a section of square-mouth pipe body, and the mounting holes on two opposite side walls are in one-to-one correspondence.
3. The light fabricated steel structure house according to claim 2, wherein the mounting hole comprises a positioning hole and an assembling hole, the positioning hole is a circular hole, and the distances from the hole center of the positioning hole to the edges of the two sides of the square-mouth pipe body are equal; the assembly holes are strip-shaped holes, the number of the assembly holes is 2-4, the hole centers of the assembly holes are arranged on the top points of squares taking the hole centers of the positioning holes as the centers, two positioning holes of which the hole center connecting lines are arranged on the diagonal lines of the squares are parallel to each other, and two positioning holes of which the hole center connecting lines are arranged on the side lengths of the squares are perpendicular to each other.
4. The construction method of the light fabricated steel structure house is characterized by comprising the following steps:
a. manufacturing a floor slab: cutting building C-shaped steel into side beam frames and connecting beams, arranging the two side beam frames in parallel, arranging a plurality of connecting beams perpendicular to the side beam frames between the two side beam frames, and connecting the end parts of the connecting beams with the side beam frames through spot welding, thereby forming a first steel structure frame; the two ends of the first steel structure frame are respectively welded with a butt joint frame, the butt joint frames are respectively provided with a first butt joint fitting at the two ends of the connecting rod, and one end of the first butt joint fitting is welded at the end part of the side beam frame of the first steel structure frame; filling a damping sound insulation layer in a first steel structure frame, welding a first steel bar grate on one side of the first steel structure frame, welding a second steel bar grate on the other side of the steel structure frame, pouring a first concrete layer on the first steel bar grate, and pouring a second concrete layer on the second steel bar grate to obtain the C-shaped steel precast floor slab;
b. and (3) manufacturing a wall: the method comprises the steps that second butt joint fittings are respectively connected between the end parts of two parallel square-mouth steel pipes, a rectangular bar frame is formed, one part of the rectangular bar frame is used as an upright frame, the other part of the rectangular bar frame is used as a beam frame, middle butt joint fittings are arranged in the middle of the beam frame, two beam frames are horizontally and oppositely arranged, the beam frame positioned above is an upper beam frame, the beam frame positioned below is a lower beam frame, a plurality of upright frames are vertically arranged between the upper beam frame and the lower beam frame, the upright frame positioned at the left end is a left upright frame, the upright frame positioned at the right end is a right upright frame, the upright frames positioned between the left upright frame and the right upright frame are middle upright frames, the upright frames and the beam frames are connected through the respective butt joint fittings, the front side mouth steel pipes of the beam frames and the front side mouth steel pipes of the upright frames jointly form a rectangular front frame, the front frame and the rear side mouth steel pipes of the beam frames jointly form a rectangular rear frame, the front frame and the rear frame jointly form a double-layer rectangular frame body of a second steel structure frame, a second steel structure frame is filled with a second steel structure frame, a second steel bar layer is filled in the second steel structure frame, a second steel bar layer is laid in the second steel bar layer is laid on the second steel bar layer, a second steel bar layer is laid in the second steel bar layer, and a second steel bar layer is laid in the second steel bar layer is laid on the second steel bar layer, and a second steel layer is laid in the second steel bar layer, and a fire-proof layer is formed;
c. manufacturing a connecting column: the four square-mouth risers are arranged in parallel, a third butt joint fitting is sequentially connected between the tops of the square-mouth risers, the tops of the four square-mouth risers are connected to form a top rectangular port, a fourth butt joint fitting is sequentially connected between the bottoms of the square-mouth risers, and the bottoms of the four square-mouth risers are connected to form a bottom rectangular port, so that a cuboid frame type stand column is formed, namely a connecting column;
d. and (3) mounting a wall: the method comprises the steps that connecting columns are respectively arranged at four corners of a rectangular ground, a wall body is installed between two adjacent connecting columns, the side end face of the wall body is attached to one side face of the connecting columns, a second butt joint fitting at the upper part of the side end of the wall body is opposite to a third butt joint fitting on the connecting columns, a second butt joint fitting at the bottom of the side end of the wall body is opposite to a fourth butt joint fitting on the connecting columns, the corresponding butt joint fitting is fixedly connected in a penetrating manner by using a split bolt, four-side wall bodies are sequentially installed according to the steps, and the upper edges of the wall bodies are kept consistent in height;
e. and (3) floor slab installation: installing a floor slab on the upper edge of the installed wall body, horizontally erecting the floor slab between the upper edges of the two opposite wall bodies, enabling a first butt joint fitting on a floor slab butt joint frame to correspond to a second butt joint fitting or a middle butt joint fitting on the top of the wall body, fixedly connecting the corresponding butt joint fittings in a penetrating way by using a split bolt, and fixedly connecting the first butt joint fitting between two adjacent floor slabs in a penetrating way by using the split bolt to finish the assembly of the floor slab;
f. and (3) mounting doors and windows: and installing a door frame and a door at the reserved gate of the wall body, and installing a window frame and a window at the reserved window of the wall body.
5. The method for constructing a light-duty fabricated steel house according to claim 4, wherein in step e, after the floor slab is assembled, the construction of one floor of the house is completed, the second floor of the connecting column is connected to the top of the connecting column of the floor of the house, then the second wall and the second floor slab are installed according to the operations in steps d to e, so that two floors of houses can be constructed, and more than two floors of houses can be constructed by repeating the operations.
6. The method for constructing a light fabricated steel house according to claim 4, wherein the first, second, third, fourth and middle butt fittings are each provided with a plurality of mounting holes on four side walls of a section of square-mouth pipe body, and the mounting holes on two opposite side walls are in one-to-one correspondence.
7. The method for constructing a light fabricated steel house according to claim 6, wherein the mounting hole comprises a positioning hole and an assembling hole, the positioning hole is a circular hole, and the distances from the hole center of the positioning hole to the edges of the two sides of the square pipe body are equal; the assembly holes are strip-shaped holes, the number of the assembly holes is 2-4, the hole centers of the assembly holes are arranged on the top points of squares taking the hole centers of the positioning holes as the centers, two positioning holes of which the hole center connecting lines are arranged on the diagonal lines of the squares are parallel to each other, and two positioning holes of which the hole center connecting lines are arranged on the side lengths of the squares are perpendicular to each other.
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| CN109440918A (en) * | 2018-09-26 | 2019-03-08 | 河南鸿宇工业装备工程有限公司 | A kind of mounting process of whole-casting house |
| CN109440919A (en) * | 2018-09-26 | 2019-03-08 | 河南鸿宇工业装备工程有限公司 | A kind of mounting process in Simple mounting house |
| CN109183995A (en) * | 2018-09-26 | 2019-01-11 | 河南鸿宇工业装备工程有限公司 | A kind of building structure suitable for one-piece casting |
| CN110565795A (en) * | 2019-07-30 | 2019-12-13 | 重庆候鸟仁旅游有限公司 | assembled house structure |
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